Nouveau - Sep 2024 - [PATCH v4 68/80] drm/nouveau: Run DRM default client setup

Provide drm_client_setup() to initialize in-kernel DRM clients. Then
convert all drivers to the new interface. Remove old interfaces for
the fbdev client.

So far, the only supported DRM client in the kernel is for fbdev
emulation with its fbcon support. Long term, we want to move away
from fbcon. Possible replacements are DRM-based loggers, boot-up
logos or maybe even a console. The exact kind of client should be
configurable by the user. You can find examples of such clients at
[1] and [2].

To do this, we need one single interface for drivers to initialize
the configured in-kernel clients, replacing the current call to
initialize fbdev emulation. The fbdev emulation also depends on the
DRM driver's management, so drivers differ in what fbdev code they
run. We need to abstract this as well.

This patchset addresses these topics. While there are many patches,
most of them are small, straight-forward changes to drivers or
rearrange existing code.

Patches 1 to 3 add a driver-neutral setup function for the fbdev
client. The new callback fbdev_probe in struct drm_driver creates
the GEM buffer for fbdev output. It replaces the existing callback
fb_probe from struct drm_fb_helper_funcs, which currently does the
same. The client code is equal to code in exisisting fbdev emulation,
except for its use of fbdev_probe.

Patch 4 adds drm_client_setup(), a client-agnostic interface to
initialize the in-kernel DRM clients. It only supports the new fbdev
emulation setup, but additional clients will be added here. Hopefully
this will hide future changes to DRM client initialization from
drivers.

Patches 5 to 48 rework all drivers with GEM memory management based
on DMA helpers. This is fairly straigh-forward. The fbdev-dma helpers
provide an implementation of the fbdev_probe helpers. Each driver
sets the new callback in its instance of struct drm_driver and calls
drm_client_setup(). Then the old fbdev-dma client goes away.

Patches 49 to 62 do the same for drivers with SHMEM-based GEM memory
management. The fbdev client code is again the same as before, except
for the fbdev_probe callback.

Patches 63 to 72 do the same for drivers with TTM-based GEM memory
management.

Patches 73 to 80 do the same for most of the remaining drivers with
custom fbdev emulation. As before, the new fbdev client code is mostly
the same the old one; except for the fbdev_probe function.

Changes for i915 and xe are a bit more involved, so they are left out
for now and will be send in a separate series.

This patchset has been tested on various hardware with the various
memory managers involved.

v4:
- drop unneeded changes to panel/ili9341
- fix docs
v3:
- add missing macros for driver ops (Sam)
- split off i915/xe changes
v2:
- add drm_client_setup_with_fourcc()
- xe: set fbdev_probe in xe_display_driver_set_hooks()
- do cleanups

[1] https://lore.kernel.org/dri-devel/20240801100640.462606-4-jfalempe at
redhat.com/
[2] https://lists.freedesktop.org/archives/dri-devel/2019-March/212113.html

Thomas Zimmermann (80):
  drm/fbdev-helper: Move color-mode lookup into 4CC format helper
  drm/fbdev-helper: Set and clear VGA switcheroo client from fb_info
  drm/fbdev: Add memory-agnostic fbdev client
  drm: Add client-agnostic setup helper
  drm/fbdev-dma: Support struct drm_driver.fbdev_probe
  drm/arcgpu: Run DRM default client setup
  drm/arm/komeda: Run DRM default client setup
  drm/arm/hdlcd: Run DRM default client setup
  drm/arm/malidp: Run DRM default client setup
  drm/aspeed: Run DRM default client setup
  drm/atmel-hdlcd: Run DRM default client setup
  drm/fsl-dcu: Run DRM default client setup
  drm/hisilicon/kirin: Run DRM default client setup
  drm/hx8357d: Run DRM default client setup
  drm/ili9163: Run DRM default client setup
  drm/ili9225: Run DRM default client setup
  drm/ili9341: Run DRM default client setup
  drm/ili9486: Run DRM default client setup
  drm/imx/dcss: Run DRM default client setup
  drm/imx/ipuv3: Run DRM default client setup
  drm/imx/lcdc: Run DRM default client setup
  drm/ingenic: Run DRM default client setup
  drm/kmb: Run DRM default client setup
  drm/logicvc: Run DRM default client setup
  drm/mcde: Run DRM default client setup
  drm/mediatek: Run DRM default client setup
  drm/meson: Run DRM default client setup
  drm/mi0283qt: Run DRM default client setup
  drm/mxsfb/lcdif: Run DRM default client setup
  drm/mxsfb: Run DRM default client setup
  drm/panel-mipi-dbi: Run DRM default client setup
  drm/pl111: Run DRM default client setup
  drm/renesas/rcar-du: Run DRM default client setup
  drm/renesas/rz-du: Run DRM default client setup
  drm/renesas/shmobile: Run DRM default client setup
  drm/repaper: Run DRM default client setup
  drm/rockchip: Run DRM default client setup
  drm/sti: Run DRM default client setup
  drm/stm: Run DRM default client setup
  drm/sun4i: Run DRM default client setup
  drm/tidss: Run DRM default client setup
  drm/tilcdc: Run DRM default client setup
  drm/st7586: Run DRM default client setup
  drm/st7735r: Run DRM default client setup
  drm/tve200: Run DRM default client setup
  drm/vc4: Run DRM default client setup
  drm/xlnx: Run DRM default client setup
  drm/fbdev-dma: Remove obsolete setup function
  drm/fbdev-shmem: Support struct drm_driver.fbdev_probe
  drm/ast: Run DRM default client setup
  drm/bochs: Run DRM default client setup
  drm/cirrus: Run DRM default client setup
  drm/gm12u320: Run DRM default client setup
  drm/gud: Run DRM default client setup
  drm/hyperv_drm: Run DRM default client setup
  drm/mgag200: Run DRM default client setup
  drm/ofdrm: Use DRM default client setup
  drm/simpledrm: Run DRM default client setup
  drm/solomon: Run DRM default client setup
  drm/udl: Run DRM default client setup
  drm/virtgpu: Run DRM default client setup
  drm/vkms: Run DRM default client setup
  drm/fbdev-shmem: Remove obsolete setup function
  drm/fbdev-ttm: Support struct drm_driver.fbdev_probe
  drm/amdgpu: Run DRM default client setup
  drm/hisilicon/hibmc: Run DRM default client setup
  drm/loongson: Run DRM default client setup
  drm/nouveau: Run DRM default client setup
  drm/qxl: Run DRM default client setup
  drm/vboxvideo: Run DRM default client setup
  drm/vmwgfx: Run DRM default client setup
  drm/fbdev-ttm: Remove obsolete setup function
  drm/armada: Run DRM default client setup
  drm/exynos-drm: Run DRM default client setup
  drm/gma500: Run DRM default client setup
  drm/msm: Run DRM default client setup
  drm/radeon: Run DRM default client setup
  drm/tegra: Run DRM default client setup
  drm/omapdrm: Remove struct drm_fb_helper from struct omap_fbdev.
  drm/omapdrm: Run DRM default client setup

 drivers/gpu/drm/Makefile                      |   5 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c       |  11 +-
 .../gpu/drm/arm/display/komeda/komeda_drv.c   |   4 +-
 .../gpu/drm/arm/display/komeda/komeda_kms.c   |   2 +
 drivers/gpu/drm/arm/hdlcd_drv.c               |   4 +-
 drivers/gpu/drm/arm/malidp_drv.c              |   4 +-
 drivers/gpu/drm/armada/armada_drm.h           |  11 +-
 drivers/gpu/drm/armada/armada_drv.c           |   4 +-
 drivers/gpu/drm/armada/armada_fbdev.c         | 113 +--------
 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c       |   4 +-
 drivers/gpu/drm/ast/ast_drv.c                 |   6 +-
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c  |   5 +-
 drivers/gpu/drm/drm_client_setup.c            |  66 +++++
 drivers/gpu/drm/drm_fb_helper.c               | 102 +++-----
 drivers/gpu/drm/drm_fbdev_client.c            | 141 +++++++++++
 drivers/gpu/drm/drm_fbdev_dma.c               | 170 +++----------
 drivers/gpu/drm/drm_fbdev_shmem.c             | 170 +++----------
 drivers/gpu/drm/drm_fbdev_ttm.c               | 225 +++++-------------
 drivers/gpu/drm/drm_fourcc.c                  |  30 ++-
 drivers/gpu/drm/exynos/exynos_drm_drv.c       |   4 +-
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c     |  99 +-------
 drivers/gpu/drm/exynos/exynos_drm_fbdev.h     |  15 +-
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c     |   4 +-
 drivers/gpu/drm/gma500/fbdev.c                | 100 +-------
 drivers/gpu/drm/gma500/psb_drv.c              |   4 +-
 drivers/gpu/drm/gma500/psb_drv.h              |  12 +-
 drivers/gpu/drm/gud/gud_drv.c                 |   4 +-
 .../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c   |   4 +-
 .../gpu/drm/hisilicon/kirin/kirin_drm_ade.c   |   2 +
 .../gpu/drm/hisilicon/kirin/kirin_drm_drv.c   |   4 +-
 drivers/gpu/drm/hyperv/hyperv_drm_drv.c       |   4 +-
 drivers/gpu/drm/imx/dcss/dcss-kms.c           |   4 +-
 drivers/gpu/drm/imx/ipuv3/imx-drm-core.c      |   4 +-
 drivers/gpu/drm/imx/lcdc/imx-lcdc.c           |   4 +-
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c     |   4 +-
 drivers/gpu/drm/kmb/kmb_drv.c                 |   4 +-
 drivers/gpu/drm/logicvc/logicvc_drm.c         |  16 +-
 drivers/gpu/drm/loongson/lsdc_drv.c           |   4 +-
 drivers/gpu/drm/mcde/mcde_drv.c               |   4 +-
 drivers/gpu/drm/mediatek/mtk_drm_drv.c        |   4 +-
 drivers/gpu/drm/meson/meson_drv.c             |   4 +-
 drivers/gpu/drm/mgag200/mgag200_drv.c         |   5 +-
 drivers/gpu/drm/msm/msm_drv.c                 |   4 +-
 drivers/gpu/drm/msm/msm_drv.h                 |  13 +-
 drivers/gpu/drm/msm/msm_fbdev.c               | 144 ++---------
 drivers/gpu/drm/mxsfb/lcdif_drv.c             |   4 +-
 drivers/gpu/drm/mxsfb/mxsfb_drv.c             |   4 +-
 drivers/gpu/drm/nouveau/nouveau_drm.c         |  10 +-
 drivers/gpu/drm/omapdrm/omap_drv.c            |   1 +
 drivers/gpu/drm/omapdrm/omap_drv.h            |   3 +
 drivers/gpu/drm/omapdrm/omap_fbdev.c          | 161 ++++---------
 drivers/gpu/drm/omapdrm/omap_fbdev.h          |   8 +
 drivers/gpu/drm/pl111/pl111_drv.c             |   4 +-
 drivers/gpu/drm/qxl/qxl_drv.c                 |   4 +-
 drivers/gpu/drm/radeon/radeon_drv.c           |  14 +-
 drivers/gpu/drm/radeon/radeon_fbdev.c         | 114 +--------
 drivers/gpu/drm/radeon/radeon_mode.h          |  12 +-
 drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c |   4 +-
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c  |   4 +-
 .../gpu/drm/renesas/shmobile/shmob_drm_drv.c  |   5 +-
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c   |   4 +-
 drivers/gpu/drm/solomon/ssd130x.c             |   4 +-
 drivers/gpu/drm/sti/sti_drv.c                 |   4 +-
 drivers/gpu/drm/stm/drv.c                     |   5 +-
 drivers/gpu/drm/sun4i/sun4i_drv.c             |   4 +-
 drivers/gpu/drm/tegra/drm.c                   |   5 +-
 drivers/gpu/drm/tegra/drm.h                   |  12 +-
 drivers/gpu/drm/tegra/fbdev.c                 |  98 +-------
 drivers/gpu/drm/tidss/tidss_drv.c             |   4 +-
 drivers/gpu/drm/tilcdc/tilcdc_drv.c           |   5 +-
 drivers/gpu/drm/tiny/arcpgu.c                 |   4 +-
 drivers/gpu/drm/tiny/bochs.c                  |   5 +-
 drivers/gpu/drm/tiny/cirrus.c                 |   4 +-
 drivers/gpu/drm/tiny/gm12u320.c               |   4 +-
 drivers/gpu/drm/tiny/hx8357d.c                |   4 +-
 drivers/gpu/drm/tiny/ili9163.c                |   4 +-
 drivers/gpu/drm/tiny/ili9225.c                |   4 +-
 drivers/gpu/drm/tiny/ili9341.c                |   4 +-
 drivers/gpu/drm/tiny/ili9486.c                |   4 +-
 drivers/gpu/drm/tiny/mi0283qt.c               |   4 +-
 drivers/gpu/drm/tiny/ofdrm.c                  |   9 +-
 drivers/gpu/drm/tiny/panel-mipi-dbi.c         |   4 +-
 drivers/gpu/drm/tiny/repaper.c                |   4 +-
 drivers/gpu/drm/tiny/simpledrm.c              |   9 +-
 drivers/gpu/drm/tiny/st7586.c                 |   4 +-
 drivers/gpu/drm/tiny/st7735r.c                |   4 +-
 drivers/gpu/drm/tve200/tve200_drv.c           |   9 +-
 drivers/gpu/drm/udl/udl_drv.c                 |   4 +-
 drivers/gpu/drm/vboxvideo/vbox_drv.c          |   4 +-
 drivers/gpu/drm/vc4/vc4_drv.c                 |   5 +-
 drivers/gpu/drm/virtio/virtgpu_drv.c          |   6 +-
 drivers/gpu/drm/vkms/vkms_drv.c               |   4 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c           |   5 +-
 drivers/gpu/drm/xlnx/zynqmp_kms.c             |   4 +-
 include/drm/drm_client_setup.h                |  15 ++
 include/drm/drm_drv.h                         |  18 ++
 include/drm/drm_fbdev_client.h                |  19 ++
 include/drm/drm_fbdev_dma.h                   |  13 +-
 include/drm/drm_fbdev_shmem.h                 |  13 +-
 include/drm/drm_fbdev_ttm.h                   |  15 +-
 include/drm/drm_fourcc.h                      |   1 +
 101 files changed, 889 insertions(+), 1369 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_client_setup.c
 create mode 100644 drivers/gpu/drm/drm_fbdev_client.c
 create mode 100644 include/drm/drm_client_setup.h
 create mode 100644 include/drm/drm_fbdev_client.h


base-commit: c60c8a9f80f13dfdeed45927a71d65b0250e17d2
prerequisite-patch-id: 0aa359f6144c4015c140c8a6750be19099c676fb
prerequisite-patch-id: c67e5d886a47b7d0266d81100837557fda34cb24
prerequisite-patch-id: cbc453ee02fae02af22fbfdce56ab732c7a88c36
-- 
2.46.0

The color mode as specified on the kernel command line gives the user's
preferred color depth and number of bits per pixel. Move the
color-mode-to-format conversion from fbdev helpers into a 4CC helper,
so that it can be shared among DRM clients.

v2:
- fix grammar in commit message (Laurent)

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at
ideasonboard.com>
---
 drivers/gpu/drm/drm_fb_helper.c | 70 +++++++--------------------------
 drivers/gpu/drm/drm_fourcc.c    | 30 +++++++++++++-
 include/drm/drm_fourcc.h        |  1 +
 3 files changed, 45 insertions(+), 56 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 29c53f9f449c..af1fe79c701d 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1441,67 +1441,27 @@ int drm_fb_helper_pan_display(struct fb_var_screeninfo
*var,
 EXPORT_SYMBOL(drm_fb_helper_pan_display);
 
 static uint32_t drm_fb_helper_find_format(struct drm_fb_helper *fb_helper,
const uint32_t *formats,
-					  size_t format_count, uint32_t bpp, uint32_t depth)
+					  size_t format_count, unsigned int color_mode)
 {
 	struct drm_device *dev = fb_helper->dev;
 	uint32_t format;
 	size_t i;
 
-	/*
-	 * Do not consider YUV or other complicated formats
-	 * for framebuffers. This means only legacy formats
-	 * are supported (fmt->depth is a legacy field), but
-	 * the framebuffer emulation can only deal with such
-	 * formats, specifically RGB/BGA formats.
-	 */
-	format = drm_mode_legacy_fb_format(bpp, depth);
-	if (!format)
-		goto err;
+	format = drm_driver_color_mode_format(dev, color_mode);
+	if (!format) {
+		drm_info(dev, "unsupported color mode of %d\n", color_mode);
+		return DRM_FORMAT_INVALID;
+	}
 
 	for (i = 0; i < format_count; ++i) {
 		if (formats[i] == format)
 			return format;
 	}
-
-err:
-	/* We found nothing. */
-	drm_warn(dev, "bpp/depth value of %u/%u not supported\n", bpp,
depth);
+	drm_warn(dev, "format %p4cc not supported\n", &format);
 
 	return DRM_FORMAT_INVALID;
 }
 
-static uint32_t drm_fb_helper_find_color_mode_format(struct drm_fb_helper
*fb_helper,
-						     const uint32_t *formats, size_t format_count,
-						     unsigned int color_mode)
-{
-	struct drm_device *dev = fb_helper->dev;
-	uint32_t bpp, depth;
-
-	switch (color_mode) {
-	case 1:
-	case 2:
-	case 4:
-	case 8:
-	case 16:
-	case 24:
-		bpp = depth = color_mode;
-		break;
-	case 15:
-		bpp = 16;
-		depth = 15;
-		break;
-	case 32:
-		bpp = 32;
-		depth = 24;
-		break;
-	default:
-		drm_info(dev, "unsupported color mode of %d\n", color_mode);
-		return DRM_FORMAT_INVALID;
-	}
-
-	return drm_fb_helper_find_format(fb_helper, formats, format_count, bpp,
depth);
-}
-
 static int __drm_fb_helper_find_sizes(struct drm_fb_helper *fb_helper,
 				      struct drm_fb_helper_surface_size *sizes)
 {
@@ -1531,10 +1491,10 @@ static int __drm_fb_helper_find_sizes(struct
drm_fb_helper *fb_helper,
 			if (!cmdline_mode->bpp_specified)
 				continue;
 
-			surface_format = drm_fb_helper_find_color_mode_format(fb_helper,
-									      plane->format_types,
-									      plane->format_count,
-									      cmdline_mode->bpp);
+			surface_format = drm_fb_helper_find_format(fb_helper,
+								   plane->format_types,
+								   plane->format_count,
+								   cmdline_mode->bpp);
 			if (surface_format != DRM_FORMAT_INVALID)
 				break; /* found supported format */
 		}
@@ -1544,10 +1504,10 @@ static int __drm_fb_helper_find_sizes(struct
drm_fb_helper *fb_helper,
 			break; /* found supported format */
 
 		/* try preferred color mode */
-		surface_format = drm_fb_helper_find_color_mode_format(fb_helper,
-								      plane->format_types,
-								      plane->format_count,
-								      fb_helper->preferred_bpp);
+		surface_format = drm_fb_helper_find_format(fb_helper,
+							   plane->format_types,
+							   plane->format_count,
+							   fb_helper->preferred_bpp);
 		if (surface_format != DRM_FORMAT_INVALID)
 			break; /* found supported format */
 	}
diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index 193cf8ed7912..3a94ca211f9c 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -36,7 +36,6 @@
  * @depth: bit depth per pixel
  *
  * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
- * Useful in fbdev emulation code, since that deals in those values.
  */
 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
 {
@@ -140,6 +139,35 @@ uint32_t drm_driver_legacy_fb_format(struct drm_device
*dev,
 }
 EXPORT_SYMBOL(drm_driver_legacy_fb_format);
 
+/**
+ * drm_driver_color_mode_format - Compute DRM 4CC code from color mode
+ * @dev: DRM device
+ * @color_mode: command-line color mode
+ *
+ * Computes a DRM 4CC pixel format code for the given color mode using
+ * drm_driver_color_mode(). The color mode is in the format used and the
+ * kernel command line. It specifies the number of bits per pixel
+ * and color depth in a single value.
+ *
+ * Useful in fbdev emulation code, since that deals in those values. The
+ * helper does not consider YUV or other complicated formats. This means
+ * only legacy formats are supported (fmt->depth is a legacy field), but
+ * the framebuffer emulation can only deal with such formats, specifically
+ * RGB/BGA formats.
+ */
+uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int
color_mode)
+{
+	switch (color_mode) {
+	case 15:
+		return drm_driver_legacy_fb_format(dev, 16, 15);
+	case 32:
+		return drm_driver_legacy_fb_format(dev, 32, 24);
+	default:
+		return drm_driver_legacy_fb_format(dev, color_mode, color_mode);
+	}
+}
+EXPORT_SYMBOL(drm_driver_color_mode_format);
+
 /*
  * Internal function to query information for a given format. See
  * drm_format_info() for the public API.
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
index ccf91daa4307..c3f4405d6662 100644
--- a/include/drm/drm_fourcc.h
+++ b/include/drm/drm_fourcc.h
@@ -313,6 +313,7 @@ drm_get_format_info(struct drm_device *dev,
 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
 uint32_t drm_driver_legacy_fb_format(struct drm_device *dev,
 				     uint32_t bpp, uint32_t depth);
+uint32_t drm_driver_color_mode_format(struct drm_device *dev, unsigned int
color_mode);
 unsigned int drm_format_info_block_width(const struct drm_format_info *info,
 					 int plane);
 unsigned int drm_format_info_block_height(const struct drm_format_info *info,
-- 
2.46.0

Call vga_switcheroo_client_fb_set() with the PCI device from the
instance of struct fb_info. All fbdev clients now run these calls.
For non-PCI devices or drivers without vga-switcheroo, this does
nothing. For i915 and radeon, it allows these drivers to use a
common fbdev client.

The device is the same as the one stored in struct drm_client and
struct drm_fb_helper, so there is no difference in behavior. Some
NULL-pointer checks are being removed, where those pointers cannot
be NULL.

v4:
- clarify call semantics for drm_fb_helper_unregister_info() (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fb_helper.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index af1fe79c701d..550fa69311cb 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -554,7 +554,7 @@ EXPORT_SYMBOL(drm_fb_helper_release_info);
 
 /**
  * drm_fb_helper_unregister_info - unregister fb_info framebuffer device
- * @fb_helper: driver-allocated fbdev helper, can be NULL
+ * @fb_helper: driver-allocated fbdev helper, must not be NULL
  *
  * A wrapper around unregister_framebuffer, to release the fb_info
  * framebuffer device. This must be called before releasing all resources for
@@ -562,8 +562,12 @@ EXPORT_SYMBOL(drm_fb_helper_release_info);
  */
 void drm_fb_helper_unregister_info(struct drm_fb_helper *fb_helper)
 {
-	if (fb_helper && fb_helper->info)
-		unregister_framebuffer(fb_helper->info);
+	struct fb_info *info = fb_helper->info;
+	struct device *dev = info->device;
+
+	if (dev_is_pci(dev))
+		vga_switcheroo_client_fb_set(to_pci_dev(dev), NULL);
+	unregister_framebuffer(fb_helper->info);
 }
 EXPORT_SYMBOL(drm_fb_helper_unregister_info);
 
@@ -1615,6 +1619,7 @@ static int drm_fb_helper_single_fb_probe(struct
drm_fb_helper *fb_helper)
 	struct drm_client_dev *client = &fb_helper->client;
 	struct drm_device *dev = fb_helper->dev;
 	struct drm_fb_helper_surface_size sizes;
+	struct fb_info *info;
 	int ret;
 
 	ret = drm_fb_helper_find_sizes(fb_helper, &sizes);
@@ -1632,9 +1637,11 @@ static int drm_fb_helper_single_fb_probe(struct
drm_fb_helper *fb_helper)
 
 	strcpy(fb_helper->fb->comm, "[fbcon]");
 
+	info = fb_helper->info;
+
 	/* Set the fb info for vgaswitcheroo clients. Does nothing otherwise. */
-	if (dev_is_pci(dev->dev))
-		vga_switcheroo_client_fb_set(to_pci_dev(dev->dev), fb_helper->info);
+	if (dev_is_pci(info->device))
+		vga_switcheroo_client_fb_set(to_pci_dev(info->device), info);
 
 	return 0;
 }
-- 
2.46.0

Add an fbdev client that can work with any memory manager. The
client implementation is the same as existing code in fbdev-dma or
fbdev-shmem.

Provide struct drm_driver.fbdev_probe for the new client to allocate
the surface GEM buffer. The new callback replaces fb_probe of struct
drm_fb_helper_funcs, which does the same.

To use the new client, DRM drivers set fbdev_probe in their struct
drm_driver instance and call drm_fbdev_client_setup(). Probing and
creating the fbdev surface buffer is now independent from the other
operations in struct drm_fb_helper. For the pixel format, the fbdev
client either uses a specified format, the value in preferred_depth
or 32-bit RGB.

v2:
- test for struct drm_fb_helper.funcs for NULL (Sui)
- respect struct drm_mode_config.preferred_depth for default format

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/Makefile           |   4 +-
 drivers/gpu/drm/drm_fb_helper.c    |  15 +--
 drivers/gpu/drm/drm_fbdev_client.c | 141 +++++++++++++++++++++++++++++
 include/drm/drm_drv.h              |  18 ++++
 include/drm/drm_fbdev_client.h     |  19 ++++
 5 files changed, 190 insertions(+), 7 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_fbdev_client.c
 create mode 100644 include/drm/drm_fbdev_client.h

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 784229d4504d..d7a684ae6a59 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -144,7 +144,9 @@ drm_kms_helper-y := \
 	drm_self_refresh_helper.o \
 	drm_simple_kms_helper.o
 drm_kms_helper-$(CONFIG_DRM_PANEL_BRIDGE) += bridge/panel.o
-drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
+drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += \
+	drm_fbdev_client.o \
+	drm_fb_helper.o
 obj-$(CONFIG_DRM_KMS_HELPER) += drm_kms_helper.o
 
 #
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 550fa69311cb..d5e8994345bb 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -492,8 +492,8 @@ EXPORT_SYMBOL(drm_fb_helper_init);
  * @fb_helper: driver-allocated fbdev helper
  *
  * A helper to alloc fb_info and the member cmap. Called by the driver
- * within the fb_probe fb_helper callback function. Drivers do not
- * need to release the allocated fb_info structure themselves, this is
+ * within the struct &drm_driver.fbdev_probe callback function. Drivers do
+ * not need to release the allocated fb_info structure themselves, this is
  * automatically done when calling drm_fb_helper_fini().
  *
  * RETURNS:
@@ -1612,7 +1612,7 @@ static int drm_fb_helper_find_sizes(struct drm_fb_helper
*fb_helper,
 
 /*
  * Allocates the backing storage and sets up the fbdev info structure through
- * the ->fb_probe callback.
+ * the ->fbdev_probe callback.
  */
 static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper)
 {
@@ -1631,7 +1631,10 @@ static int drm_fb_helper_single_fb_probe(struct
drm_fb_helper *fb_helper)
 	}
 
 	/* push down into drivers */
-	ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);
+	if (dev->driver->fbdev_probe)
+		ret = dev->driver->fbdev_probe(fb_helper, &sizes);
+	else if (fb_helper->funcs)
+		ret = fb_helper->funcs->fb_probe(fb_helper, &sizes);
 	if (ret < 0)
 		return ret;
 
@@ -1705,7 +1708,7 @@ static void drm_fb_helper_fill_var(struct fb_info *info,
  * instance and the drm framebuffer allocated in &drm_fb_helper.fb.
  *
  * Drivers should call this (or their equivalent setup code) from their
- * &drm_fb_helper_funcs.fb_probe callback after having allocated the fbdev
+ * &drm_driver.fbdev_probe callback after having allocated the fbdev
  * backing storage framebuffer.
  */
 void drm_fb_helper_fill_info(struct fb_info *info,
@@ -1861,7 +1864,7 @@ __drm_fb_helper_initial_config_and_unlock(struct
drm_fb_helper *fb_helper)
  * Note that this also registers the fbdev and so allows userspace to call into
  * the driver through the fbdev interfaces.
  *
- * This function will call down into the &drm_fb_helper_funcs.fb_probe
callback
+ * This function will call down into the &drm_driver.fbdev_probe callback
  * to let the driver allocate and initialize the fbdev info structure and the
  * drm framebuffer used to back the fbdev. drm_fb_helper_fill_info() is
provided
  * as a helper to setup simple default values for the fbdev info structure.
diff --git a/drivers/gpu/drm/drm_fbdev_client.c
b/drivers/gpu/drm/drm_fbdev_client.c
new file mode 100644
index 000000000000..a09382afe2fb
--- /dev/null
+++ b/drivers/gpu/drm/drm_fbdev_client.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: MIT
+
+#include <drm/drm_client.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fbdev_client.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
+
+/*
+ * struct drm_client_funcs
+ */
+
+static void drm_fbdev_client_unregister(struct drm_client_dev *client)
+{
+	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+
+	if (fb_helper->info) {
+		drm_fb_helper_unregister_info(fb_helper);
+	} else {
+		drm_client_release(&fb_helper->client);
+		drm_fb_helper_unprepare(fb_helper);
+		kfree(fb_helper);
+	}
+}
+
+static int drm_fbdev_client_restore(struct drm_client_dev *client)
+{
+	drm_fb_helper_lastclose(client->dev);
+
+	return 0;
+}
+
+static int drm_fbdev_client_hotplug(struct drm_client_dev *client)
+{
+	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+	struct drm_device *dev = client->dev;
+	int ret;
+
+	if (dev->fb_helper)
+		return drm_fb_helper_hotplug_event(dev->fb_helper);
+
+	ret = drm_fb_helper_init(dev, fb_helper);
+	if (ret)
+		goto err_drm_err;
+
+	if (!drm_drv_uses_atomic_modeset(dev))
+		drm_helper_disable_unused_functions(dev);
+
+	ret = drm_fb_helper_initial_config(fb_helper);
+	if (ret)
+		goto err_drm_fb_helper_fini;
+
+	return 0;
+
+err_drm_fb_helper_fini:
+	drm_fb_helper_fini(fb_helper);
+err_drm_err:
+	drm_err(dev, "fbdev: Failed to setup emulation (ret=%d)\n", ret);
+	return ret;
+}
+
+static const struct drm_client_funcs drm_fbdev_client_funcs = {
+	.owner		= THIS_MODULE,
+	.unregister	= drm_fbdev_client_unregister,
+	.restore	= drm_fbdev_client_restore,
+	.hotplug	= drm_fbdev_client_hotplug,
+};
+
+/**
+ * drm_fbdev_client_setup() - Setup fbdev emulation
+ * @dev: DRM device
+ * @format: Preferred color format for the device. DRM_FORMAT_XRGB8888
+ *          is used if this is zero.
+ *
+ * This function sets up fbdev emulation. Restore, hotplug events and
+ * teardown are all taken care of. Drivers that do suspend/resume need
+ * to call drm_fb_helper_set_suspend_unlocked() themselves. Simple
+ * drivers might use drm_mode_config_helper_suspend().
+ *
+ * This function is safe to call even when there are no connectors present.
+ * Setup will be retried on the next hotplug event.
+ *
+ * The fbdev client is destroyed by drm_dev_unregister().
+ *
+ * Returns:
+ * 0 on success, or a negative errno code otherwise.
+ */
+int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info
*format)
+{
+	struct drm_fb_helper *fb_helper;
+	unsigned int color_mode;
+	int ret;
+
+	/* TODO: Use format info throughout DRM */
+	if (format) {
+		unsigned int bpp = drm_format_info_bpp(format, 0);
+
+		switch (bpp) {
+		case 16:
+			color_mode = format->depth; // could also be 15
+			break;
+		default:
+			color_mode = bpp;
+		}
+	} else {
+		switch (dev->mode_config.preferred_depth) {
+		case 0:
+		case 24:
+			color_mode = 32;
+			break;
+		default:
+			color_mode = dev->mode_config.preferred_depth;
+		}
+	}
+
+	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
+	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
+
+	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
+	if (!fb_helper)
+		return -ENOMEM;
+	drm_fb_helper_prepare(dev, fb_helper, color_mode, NULL);
+
+	ret = drm_client_init(dev, &fb_helper->client, "fbdev",
&drm_fbdev_client_funcs);
+	if (ret) {
+		drm_err(dev, "Failed to register client: %d\n", ret);
+		goto err_drm_client_init;
+	}
+
+	drm_client_register(&fb_helper->client);
+
+	return 0;
+
+err_drm_client_init:
+	drm_fb_helper_unprepare(fb_helper);
+	kfree(fb_helper);
+	return ret;
+}
+EXPORT_SYMBOL(drm_fbdev_client_setup);
diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 02ea4e3248fd..36a606af4ba1 100644
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -34,6 +34,8 @@
 
 #include <drm/drm_device.h>
 
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 struct drm_file;
 struct drm_gem_object;
 struct drm_master;
@@ -366,6 +368,22 @@ struct drm_driver {
 			       struct drm_device *dev, uint32_t handle,
 			       uint64_t *offset);
 
+	/**
+	 * @fbdev_probe
+	 *
+	 * Allocates and initialize the fb_info structure for fbdev emulation.
+	 * Furthermore it also needs to allocate the DRM framebuffer used to
+	 * back the fbdev.
+	 *
+	 * This callback is mandatory for fbdev support.
+	 *
+	 * Returns:
+	 *
+	 * 0 on success ot a negative error code otherwise.
+	 */
+	int (*fbdev_probe)(struct drm_fb_helper *fbdev_helper,
+			   struct drm_fb_helper_surface_size *sizes);
+
 	/**
 	 * @show_fdinfo:
 	 *
diff --git a/include/drm/drm_fbdev_client.h b/include/drm/drm_fbdev_client.h
new file mode 100644
index 000000000000..e11a5614f127
--- /dev/null
+++ b/include/drm/drm_fbdev_client.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef DRM_FBDEV_CLIENT_H
+#define DRM_FBDEV_CLIENT_H
+
+struct drm_device;
+struct drm_format_info;
+
+#ifdef CONFIG_DRM_FBDEV_EMULATION
+int drm_fbdev_client_setup(struct drm_device *dev, const struct drm_format_info
*format);
+#else
+static inline int drm_fbdev_client_setup(struct drm_device *dev,
+					 const struct drm_format_info *format)
+{
+	return 0;
+}
+#endif
+
+#endif
-- 
2.46.0

DRM may support multiple in-kernel clients that run as soon as a DRM
driver has been registered. To select the client(s) in a single place,
introduce drm_client_setup().

Drivers that call the new helper automatically instantiate the kernel's
configured default clients. Only fbdev emulation is currently supported.
Later versions can add support for DRM-based logging, a boot logo or even
a console.

Some drivers handle the color mode for clients internally. Provide the
helper drm_client_setup_with_color_mode() for them.

v4:
- fix docs for drm_client_setup_with_fourcc() (Geert)
v3:
- fix build error
v2:
- add drm_client_setup_with_fourcc() (Laurent)
- push default-format handling into actual clients

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at
ideasonboard.com>
---
 drivers/gpu/drm/Makefile           |  1 +
 drivers/gpu/drm/drm_client_setup.c | 66 ++++++++++++++++++++++++++++++
 include/drm/drm_client_setup.h     | 15 +++++++
 3 files changed, 82 insertions(+)
 create mode 100644 drivers/gpu/drm/drm_client_setup.c
 create mode 100644 include/drm/drm_client_setup.h

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index d7a684ae6a59..c08f639f9550 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -129,6 +129,7 @@ obj-$(CONFIG_DRM_TTM_HELPER) += drm_ttm_helper.o
 drm_kms_helper-y := \
 	drm_atomic_helper.o \
 	drm_atomic_state_helper.o \
+	drm_client_setup.o \
 	drm_crtc_helper.o \
 	drm_damage_helper.o \
 	drm_encoder_slave.o \
diff --git a/drivers/gpu/drm/drm_client_setup.c
b/drivers/gpu/drm/drm_client_setup.c
new file mode 100644
index 000000000000..5969c4ffe31b
--- /dev/null
+++ b/drivers/gpu/drm/drm_client_setup.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: MIT
+
+#include <drm/drm_client_setup.h>
+#include <drm/drm_device.h>
+#include <drm/drm_fbdev_client.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_print.h>
+
+/**
+ * drm_client_setup() - Setup in-kernel DRM clients
+ * @dev: DRM device
+ * @format: Preferred pixel format for the device. Use NULL, unless
+ *          there is clearly a driver-preferred format.
+ *
+ * This function sets up the in-kernel DRM clients. Restore, hotplug
+ * events and teardown are all taken care of.
+ *
+ * Drivers should call drm_client_setup() after registering the new
+ * DRM device with drm_dev_register(). This function is safe to call
+ * even when there are no connectors present. Setup will be retried
+ * on the next hotplug event.
+ *
+ * The clients are destroyed by drm_dev_unregister().
+ */
+void drm_client_setup(struct drm_device *dev, const struct drm_format_info
*format)
+{
+	int ret;
+
+	ret = drm_fbdev_client_setup(dev, format);
+	if (ret)
+		drm_warn(dev, "Failed to set up DRM client; error %d\n", ret);
+}
+EXPORT_SYMBOL(drm_client_setup);
+
+/**
+ * drm_client_setup_with_fourcc() - Setup in-kernel DRM clients for color mode
+ * @dev: DRM device
+ * @fourcc: Preferred pixel format as 4CC code for the device
+ *
+ * This function sets up the in-kernel DRM clients. It is equivalent
+ * to drm_client_setup(), but expects a 4CC code as second argument.
+ */
+void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc)
+{
+	drm_client_setup(dev, drm_format_info(fourcc));
+}
+EXPORT_SYMBOL(drm_client_setup_with_fourcc);
+
+/**
+ * drm_client_setup_with_color_mode() - Setup in-kernel DRM clients for color
mode
+ * @dev: DRM device
+ * @color_mode: Preferred color mode for the device
+ *
+ * This function sets up the in-kernel DRM clients. It is equivalent
+ * to drm_client_setup(), but expects a color mode as second argument.
+ *
+ * Do not use this function in new drivers. Prefer drm_client_setup() with a
+ * format of NULL.
+ */
+void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int
color_mode)
+{
+	u32 fourcc = drm_driver_color_mode_format(dev, color_mode);
+
+	drm_client_setup_with_fourcc(dev, fourcc);
+}
+EXPORT_SYMBOL(drm_client_setup_with_color_mode);
diff --git a/include/drm/drm_client_setup.h b/include/drm/drm_client_setup.h
new file mode 100644
index 000000000000..6c0396b4f815
--- /dev/null
+++ b/include/drm/drm_client_setup.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef DRM_CLIENT_SETUP_H
+#define DRM_CLIENT_SETUP_H
+
+#include <linux/types.h>
+
+struct drm_device;
+struct drm_format_info;
+
+void drm_client_setup(struct drm_device *dev, const struct drm_format_info
*format);
+void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc);
+void drm_client_setup_with_color_mode(struct drm_device *dev, unsigned int
color_mode);
+
+#endif
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and reimplement the old fb_probe callback on top of it. Provide an
initializer macro for struct drm_driver that sets the callback
according to the kernel configuration.

This change allows the common fbdev client to run on top of DMA-
based DRM drivers.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_dma.c | 60 ++++++++++++++++++++-------------
 include/drm/drm_fbdev_dma.h     | 12 +++++++
 2 files changed, 48 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_dma.c b/drivers/gpu/drm/drm_fbdev_dma.c
index b0602c4f3628..9ce754ebe18e 100644
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@@ -104,6 +104,40 @@ static const struct fb_ops drm_fbdev_dma_deferred_fb_ops =
{
 
 static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
 					 struct drm_fb_helper_surface_size *sizes)
+{
+	return drm_fbdev_dma_driver_fbdev_probe(fb_helper, sizes);
+}
+
+static int drm_fbdev_dma_helper_fb_dirty(struct drm_fb_helper *helper,
+					 struct drm_clip_rect *clip)
+{
+	struct drm_device *dev = helper->dev;
+	int ret;
+
+	/* Call damage handlers only if necessary */
+	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+		return 0;
+
+	if (helper->fb->funcs->dirty) {
+		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct drm_fb_helper_funcs drm_fbdev_dma_helper_funcs = {
+	.fb_probe = drm_fbdev_dma_helper_fb_probe,
+	.fb_dirty = drm_fbdev_dma_helper_fb_dirty,
+};
+
+/*
+ * struct drm_fb_helper
+ */
+
+int drm_fbdev_dma_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				     struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_client_dev *client = &fb_helper->client;
 	struct drm_device *dev = fb_helper->dev;
@@ -147,6 +181,7 @@ static int drm_fbdev_dma_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 		goto err_drm_client_buffer_delete;
 	}
 
+	fb_helper->funcs = &drm_fbdev_dma_helper_funcs;
 	fb_helper->buffer = buffer;
 	fb_helper->fb = fb;
 
@@ -210,30 +245,7 @@ static int drm_fbdev_dma_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 	drm_client_framebuffer_delete(buffer);
 	return ret;
 }
-
-static int drm_fbdev_dma_helper_fb_dirty(struct drm_fb_helper *helper,
-					 struct drm_clip_rect *clip)
-{
-	struct drm_device *dev = helper->dev;
-	int ret;
-
-	/* Call damage handlers only if necessary */
-	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
-		return 0;
-
-	if (helper->fb->funcs->dirty) {
-		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
-		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
-			return ret;
-	}
-
-	return 0;
-}
-
-static const struct drm_fb_helper_funcs drm_fbdev_dma_helper_funcs = {
-	.fb_probe = drm_fbdev_dma_helper_fb_probe,
-	.fb_dirty = drm_fbdev_dma_helper_fb_dirty,
-};
+EXPORT_SYMBOL(drm_fbdev_dma_driver_fbdev_probe);
 
 /*
  * struct drm_client_funcs
diff --git a/include/drm/drm_fbdev_dma.h b/include/drm/drm_fbdev_dma.h
index 2da7ee784133..6ae4de46497c 100644
--- a/include/drm/drm_fbdev_dma.h
+++ b/include/drm/drm_fbdev_dma.h
@@ -4,12 +4,24 @@
 #define DRM_FBDEV_DMA_H
 
 struct drm_device;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
+int drm_fbdev_dma_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				     struct drm_fb_helper_surface_size *sizes);
+
+#define DRM_FBDEV_DMA_DRIVER_OPS \
+	.fbdev_probe = drm_fbdev_dma_driver_fbdev_probe
+
 void drm_fbdev_dma_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
 static inline void drm_fbdev_dma_setup(struct drm_device *dev, unsigned int
preferred_bpp)
 { }
+
+#define DRM_FBDEV_DMA_DRIVER_OPS \
+	.fbdev_probe = NULL
+
 #endif
 
 #endif
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Alexey Brodkin <abrodkin at synopsys.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/arcpgu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 4f8f3172379e..81abedec435d 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -7,6 +7,7 @@
 
 #include <linux/clk.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_device.h>
 #include <drm/drm_drv.h>
@@ -371,6 +372,7 @@ static const struct drm_driver arcpgu_drm_driver = {
 	.patchlevel = 0,
 	.fops = &arcpgu_drm_ops,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init = arcpgu_debugfs_init,
 #endif
@@ -394,7 +396,7 @@ static int arcpgu_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(&arcpgu->drm, 16);
+	drm_client_setup_with_fourcc(&arcpgu->drm, DRM_FORMAT_RGB565);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The komeda driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Liviu Dudau <liviu.dudau at arm.com>
Acked-by: Liviu Dudau <liviu.dudau at arm.com>
---
 drivers/gpu/drm/arm/display/komeda/komeda_drv.c | 4 ++--
 drivers/gpu/drm/arm/display/komeda/komeda_kms.c | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index 55c3773befde..6d475bb34002 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -9,7 +9,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-#include <drm/drm_fbdev_dma.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_module.h>
 #include <drm/drm_of.h>
 #include "komeda_dev.h"
@@ -84,7 +84,7 @@ static int komeda_platform_probe(struct platform_device *pdev)
 	}
 
 	dev_set_drvdata(dev, mdrv);
-	drm_fbdev_dma_setup(&mdrv->kms->base, 32);
+	drm_client_setup(&mdrv->kms->base, NULL);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
index e5eb5d672bcd..1e7b1fcb2848 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_kms.c
@@ -9,6 +9,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_managed.h>
@@ -58,6 +59,7 @@ static irqreturn_t komeda_kms_irq_handler(int irq, void *data)
 static const struct drm_driver komeda_kms_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(komeda_gem_dma_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops = &komeda_cma_fops,
 	.name = "komeda",
 	.desc = "Arm Komeda Display Processor driver",
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The hdlcd driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Liviu Dudau <liviu.dudau at arm.com>
Acked-by: Liviu Dudau <liviu.dudau at arm.com>
---
 drivers/gpu/drm/arm/hdlcd_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/hdlcd_drv.c b/drivers/gpu/drm/arm/hdlcd_drv.c
index 32be9e370049..f5d358f3893b 100644
--- a/drivers/gpu/drm/arm/hdlcd_drv.c
+++ b/drivers/gpu/drm/arm/hdlcd_drv.c
@@ -23,6 +23,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_drv.h>
@@ -228,6 +229,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver hdlcd_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops = &fops,
 	.name = "hdlcd",
 	.desc = "ARM HDLCD Controller DRM",
@@ -299,7 +301,7 @@ static int hdlcd_drm_bind(struct device *dev)
 	if (ret)
 		goto err_register;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The malidp driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Liviu Dudau <liviu.dudau at arm.com>
Acked-by: Liviu Dudau <liviu.dudau at arm.com>
---
 drivers/gpu/drm/arm/malidp_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 6682131d2910..4cb25004b84f 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -18,6 +18,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -562,6 +563,7 @@ static void malidp_debugfs_init(struct drm_minor *minor)
 static const struct drm_driver malidp_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init = malidp_debugfs_init,
 #endif
@@ -852,7 +854,7 @@ static int malidp_bind(struct device *dev)
 	if (ret)
 		goto register_fail;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The aspeed driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v3:
- add DRM_FBDEV_DMA_DRIVER_OPS macro

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Joel Stanley <joel at jms.id.au>
Cc: Andrew Jeffery <andrew at codeconstruct.com.au>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/aspeed/aspeed_gfx_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
index a7a6b70220eb..109023815fa2 100644
--- a/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
+++ b/drivers/gpu/drm/aspeed/aspeed_gfx_drv.c
@@ -14,6 +14,7 @@
 #include <linux/reset.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_device.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -247,6 +248,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver aspeed_gfx_driver = {
 	.driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops = &fops,
 	.name = "aspeed-gfx-drm",
 	.desc = "ASPEED GFX DRM",
@@ -339,7 +341,7 @@ static int aspeed_gfx_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(&priv->drm, 32);
+	drm_client_setup(&priv->drm, NULL);
 	return 0;
 
 err_unload:
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v3:
- add DRM_FBDEV_DMA_DRIVER_OPS macro (Sam)
v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Sam Ravnborg <sam at ravnborg.org>
Cc: Boris Brezillon <bbrezillon at kernel.org>
Cc: Nicolas Ferre <nicolas.ferre at microchip.com>
Cc: Alexandre Belloni <alexandre.belloni at bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea at tuxon.dev>
Acked-by: Sam Ravnborg <sam at ravnborg.org>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 9ce429f889ca..792dcc19e8e7 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -18,8 +18,10 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_module.h>
@@ -840,6 +842,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver atmel_hlcdc_dc_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops = &fops,
 	.name = "atmel-hlcdc",
 	.desc = "Atmel HLCD Controller DRM",
@@ -865,7 +868,7 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_device
*pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(ddev, 24);
+	drm_client_setup_with_fourcc(ddev, DRM_FORMAT_RGB888);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with_color_mode() to run the kernel's default
client setup for DRM. Set fbdev_probe in struct drm_driver, so that
the client setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Stefan Agner <stefan at agner.ch>
Cc: Alison Wang <alison.wang at nxp.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
index ab6c0c6cd0e2..2b3f15f0dc56 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -19,6 +19,7 @@
 #include <linux/regmap.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -156,6 +157,7 @@ static const struct drm_driver fsl_dcu_drm_driver = {
 	.load			= fsl_dcu_load,
 	.unload			= fsl_dcu_unload,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &fsl_dcu_drm_fops,
 	.name			= "fsl-dcu-drm",
 	.desc			= "Freescale DCU DRM",
@@ -333,7 +335,7 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto put;
 
-	drm_fbdev_dma_setup(drm, legacyfb_depth);
+	drm_client_setup_with_color_mode(drm, legacyfb_depth);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The kirin driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Xinliang Liu <xinliang.liu at linaro.org>
Cc: Tian Tao <tiantao6 at hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei at hisilicon.com>
Cc: Sumit Semwal <sumit.semwal at linaro.org>
Cc: Yongqin Liu <yongqin.liu at linaro.org>
Cc: John Stultz <jstultz at google.com>
Acked-by: John Stultz <jstultz at google.com>
---
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 2 ++
 drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index 871f79a6b17e..5616c3917c03 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -25,6 +25,7 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_dma_helper.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -925,6 +926,7 @@ static const struct drm_driver ade_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops = &ade_fops,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name = "kirin",
 	.desc = "Hisilicon Kirin620 SoC DRM Driver",
 	.date = "20150718",
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index 12666985686b..86a3a1faff49 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -18,8 +18,8 @@
 #include <linux/platform_device.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
-#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_module.h>
@@ -237,7 +237,7 @@ static int kirin_drm_bind(struct device *dev)
 	if (ret)
 		goto err_kms_cleanup;
 
-	drm_fbdev_dma_setup(drm_dev, 32);
+	drm_client_setup(drm_dev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/hx8357d.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index 2e631282edeb..6b0d1846cfcf 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -17,6 +17,7 @@
 #include <linux/spi/spi.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -194,6 +195,7 @@ static const struct drm_driver hx8357d_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &hx8357d_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "hx8357d",
 	.desc			= "HX8357D",
@@ -256,7 +258,7 @@ static int hx8357d_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/ili9163.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/ili9163.c b/drivers/gpu/drm/tiny/ili9163.c
index 86f9d8834901..5eb39ca1a855 100644
--- a/drivers/gpu/drm/tiny/ili9163.c
+++ b/drivers/gpu/drm/tiny/ili9163.c
@@ -8,6 +8,7 @@
 #include <linux/spi/spi.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -113,6 +114,7 @@ static struct drm_driver ili9163_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &ili9163_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "ili9163",
 	.desc			= "Ilitek ILI9163",
@@ -185,7 +187,7 @@ static int ili9163_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: David Lechner <david at lechnology.com>
Acked-by: David Lechner <david at lechnology.com>
---
 drivers/gpu/drm/tiny/ili9225.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index b6b7a49147bf..875e2d09729a 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -17,6 +17,7 @@
 #include <video/mipi_display.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_dma_helper.h>
@@ -360,6 +361,7 @@ static const struct drm_driver ili9225_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &ili9225_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name			= "ili9225",
 	.desc			= "Ilitek ILI9225",
 	.date			= "20171106",
@@ -426,7 +428,7 @@ static int ili9225_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/ili9341.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index 8bcada30af71..c1dfdfbbd30c 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -16,6 +16,7 @@
 #include <linux/spi/spi.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -150,6 +151,7 @@ static const struct drm_driver ili9341_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &ili9341_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "ili9341",
 	.desc			= "Ilitek ILI9341",
@@ -218,7 +220,7 @@ static int ili9341_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/ili9486.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index 70d366260041..7e46a720d5e2 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -15,6 +15,7 @@
 #include <video/mipi_display.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -172,6 +173,7 @@ static const struct drm_driver ili9486_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &ili9486_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "ili9486",
 	.desc			= "Ilitek ILI9486",
@@ -247,7 +249,7 @@ static int ili9486_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The dcss driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Laurentiu Palcu <laurentiu.palcu at oss.nxp.com>
Cc: Lucas Stach <l.stach at pengutronix.de>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/imx/dcss/dcss-kms.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/dcss/dcss-kms.c
b/drivers/gpu/drm/imx/dcss/dcss-kms.c
index d0ea4e97cded..3ec721afc30c 100644
--- a/drivers/gpu/drm/imx/dcss/dcss-kms.c
+++ b/drivers/gpu/drm/imx/dcss/dcss-kms.c
@@ -6,6 +6,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge_connector.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -28,6 +29,7 @@ static const struct drm_mode_config_funcs
dcss_drm_mode_config_funcs = {
 static const struct drm_driver dcss_kms_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &dcss_cma_fops,
 	.name			= "imx-dcss",
 	.desc			= "i.MX8MQ Display Subsystem",
@@ -145,7 +147,7 @@ struct dcss_kms_dev *dcss_kms_attach(struct dcss_dev *dcss)
 	if (ret)
 		goto cleanup_crtc;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return kms;
 
-- 
2.46.0

Call drm_client_setup_with_color_mode() to run the kernel's default
client setup for DRM. Set fbdev_probe in struct drm_driver, so that
the client setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Philipp Zabel <p.zabel at pengutronix.de>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/imx/ipuv3/imx-drm-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/ipuv3/imx-drm-core.c
b/drivers/gpu/drm/imx/ipuv3/imx-drm-core.c
index 189d395349b8..ced06bd8eae8 100644
--- a/drivers/gpu/drm/imx/ipuv3/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/ipuv3/imx-drm-core.c
@@ -15,6 +15,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -156,6 +157,7 @@ static int imx_drm_dumb_create(struct drm_file *file_priv,
 static const struct drm_driver imx_drm_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(imx_drm_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.ioctls			= imx_drm_ioctls,
 	.num_ioctls		= ARRAY_SIZE(imx_drm_ioctls),
 	.fops			= &imx_drm_driver_fops,
@@ -242,7 +244,7 @@ static int imx_drm_bind(struct device *dev)
 	if (ret)
 		goto err_poll_fini;
 
-	drm_fbdev_dma_setup(drm, legacyfb_depth);
+	drm_client_setup_with_color_mode(drm, legacyfb_depth);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/imx/lcdc/imx-lcdc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
index 36668455aee8..3215c4acd675 100644
--- a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
+++ b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c
@@ -3,6 +3,7 @@
 
 #include <drm/drm_bridge.h>
 #include <drm/drm_bridge_connector.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -348,6 +349,7 @@ static struct drm_driver imx_lcdc_drm_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops = &imx_lcdc_drm_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name = "imx-lcdc",
 	.desc = "i.MX LCDC driver",
 	.date = "20200716",
@@ -501,7 +503,7 @@ static int imx_lcdc_probe(struct platform_device *pdev)
 	if (ret)
 		return dev_err_probe(dev, ret, "Cannot register device\n");
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The ingenic driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Paul Cercueil <paul at crapouillou.net>
Acked-by: Paul Cercueil <paul at crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 39fa291f43dd..056b70b63554 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -24,6 +24,7 @@
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_bridge_connector.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_color_mgmt.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_damage_helper.h>
@@ -960,6 +961,7 @@ static const struct drm_driver ingenic_drm_driver_data = {
 	.fops			= &ingenic_drm_fops,
 	.gem_create_object	= ingenic_drm_gem_create_object,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static const struct drm_plane_funcs ingenic_drm_primary_plane_funcs = {
@@ -1399,7 +1401,7 @@ static int ingenic_drm_bind(struct device *dev, bool
has_components)
 		goto err_clk_notifier_unregister;
 	}
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Anitha Chrisanthus <anitha.chrisanthus at intel.com>
Cc: Edmund Dea <edmund.j.dea at intel.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/kmb/kmb_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
index 169b83987ce2..0274ab9caa85 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.c
+++ b/drivers/gpu/drm/kmb/kmb_drv.c
@@ -14,6 +14,7 @@
 #include <linux/regmap.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -441,6 +442,7 @@ static const struct drm_driver kmb_driver = {
 	/* GEM Operations */
 	.fops = &fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name = "kmb-drm",
 	.desc = "KEEMBAY DISPLAY DRIVER",
 	.date = DRIVER_DATE,
@@ -561,7 +563,7 @@ static int kmb_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_register;
 
-	drm_fbdev_dma_setup(&kmb->drm, 0);
+	drm_client_setup(&kmb->drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The logicvc driver specifies a preferred color mode from the value
in struct drm_mode_config.preferred_depth. The fbdev client also
looks at this value for the default pixel format. Thus remove the
format selection from logicvc.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/logicvc/logicvc_drm.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c
b/drivers/gpu/drm/logicvc/logicvc_drm.c
index 01a37e28c080..e4d90701b29d 100644
--- a/drivers/gpu/drm/logicvc/logicvc_drm.c
+++ b/drivers/gpu/drm/logicvc/logicvc_drm.c
@@ -16,8 +16,10 @@
 #include <linux/types.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_print.h>
 
@@ -55,6 +57,7 @@ static struct drm_driver logicvc_drm_driver = {
 	.minor				= 0,
 
 	DRM_GEM_DMA_DRIVER_OPS_VMAP_WITH_DUMB_CREATE(logicvc_drm_gem_dma_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static struct regmap_config logicvc_drm_regmap_config = {
@@ -301,7 +304,6 @@ static int logicvc_drm_probe(struct platform_device *pdev)
 	struct regmap *regmap = NULL;
 	struct resource res;
 	void __iomem *base;
-	unsigned int preferred_bpp;
 	int irq;
 	int ret;
 
@@ -439,17 +441,7 @@ static int logicvc_drm_probe(struct platform_device *pdev)
 		goto error_mode;
 	}
 
-	switch (drm_dev->mode_config.preferred_depth) {
-	case 16:
-		preferred_bpp = 16;
-		break;
-	case 24:
-	case 32:
-	default:
-		preferred_bpp = 32;
-		break;
-	}
-	drm_fbdev_dma_setup(drm_dev, preferred_bpp);
+	drm_client_setup(drm_dev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The mcde driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Linus Walleij <linus.walleij at linaro.org>
Acked-by: Linus Walleij <linus.walleij at linaro.org>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/mcde/mcde_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index 10c06440c7e7..6f4e0f3bf532 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -67,6 +67,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_dma_helper.h>
 #include <drm/drm_fbdev_dma.h>
@@ -212,6 +213,7 @@ static const struct drm_driver mcde_drm_driver = {
 	.minor = 0,
 	.patchlevel = 0,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static int mcde_drm_bind(struct device *dev)
@@ -237,7 +239,7 @@ static int mcde_drm_bind(struct device *dev)
 	if (ret < 0)
 		goto unbind;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The mediatek driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Chun-KuaIng Hu <chunkuang.hu at kernel.org>
Cc: Philipp Zabel <p.zabel at pengutronix.de>
Cc: Matthias Brugger <matthias.bgg at gmail.com>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno at
collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg at gmail.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 77b50c56c124..b1309a70fdcd 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -14,6 +14,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fourcc.h>
@@ -610,6 +611,7 @@ static const struct drm_driver mtk_drm_driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 
 	.dumb_create = mtk_gem_dumb_create,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	.gem_prime_import = mtk_gem_prime_import,
 	.gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
@@ -666,7 +668,7 @@ static int mtk_drm_bind(struct device *dev)
 	if (ret < 0)
 		goto err_deinit;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The meson driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Neil Armstrong <neil.armstrong at linaro.org>
Cc: Kevin Hilman <khilman at baylibre.com>
Cc: Jerome Brunet <jbrunet at baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
---
 drivers/gpu/drm/meson/meson_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/meson/meson_drv.c
b/drivers/gpu/drm/meson/meson_drv.c
index 4bd0baa2a4f5..2f76f48da38d 100644
--- a/drivers/gpu/drm/meson/meson_drv.c
+++ b/drivers/gpu/drm/meson/meson_drv.c
@@ -17,6 +17,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -98,6 +99,7 @@ static const struct drm_driver meson_driver = {
 
 	/* DMA Ops */
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(meson_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	/* Misc */
 	.fops			= &fops,
@@ -353,7 +355,7 @@ static int meson_drv_bind_master(struct device *dev, bool
has_components)
 	if (ret)
 		goto uninstall_irq;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: "Noralf Tr?nnes" <noralf at tronnes.org>
Acked-by: Noralf Tr?nnes <noralf at tronnes.org>
---
 drivers/gpu/drm/tiny/mi0283qt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index cdc5423990ca..f1461c55dba6 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -14,6 +14,7 @@
 #include <linux/spi/spi.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -154,6 +155,7 @@ static const struct drm_driver mi0283qt_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &mi0283qt_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "mi0283qt",
 	.desc			= "Multi-Inno MI0283QT",
@@ -226,7 +228,7 @@ static int mi0283qt_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The lcdif driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Marek Vasut <marex at denx.de>
Cc: Stefan Agner <stefan at agner.ch>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/mxsfb/lcdif_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mxsfb/lcdif_drv.c
b/drivers/gpu/drm/mxsfb/lcdif_drv.c
index 0f895b8a99d6..58ccad9c425d 100644
--- a/drivers/gpu/drm/mxsfb/lcdif_drv.c
+++ b/drivers/gpu/drm/mxsfb/lcdif_drv.c
@@ -16,6 +16,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_fbdev_dma.h>
@@ -243,6 +244,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver lcdif_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops	= &fops,
 	.name	= "imx-lcdif",
 	.desc	= "i.MX LCDIF Controller DRM",
@@ -275,7 +277,7 @@ static int lcdif_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The mxsfb driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v3:
- fix driver name "msxfb" to "mxsfb"

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Marek Vasut <marex at denx.de>
Cc: Stefan Agner <stefan at agner.ch>
Cc: Shawn Guo <shawnguo at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Fabio Estevam <festevam at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/mxsfb/mxsfb_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index cb5ce4e81fc7..34a98717b72c 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -19,6 +19,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -331,6 +332,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver mxsfb_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops	= &fops,
 	.name	= "mxsfb-drm",
 	.desc	= "MXSFB Controller DRM",
@@ -364,7 +366,7 @@ static int mxsfb_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: "Noralf Tr?nnes" <noralf at tronnes.org>
Acked-by: Noralf Tr?nnes <noralf at tronnes.org>
---
 drivers/gpu/drm/tiny/panel-mipi-dbi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c
b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
index f753cdffe6f8..e66729b31bd6 100644
--- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c
+++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c
@@ -15,6 +15,7 @@
 #include <linux/spi/spi.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -264,6 +265,7 @@ static const struct drm_driver panel_mipi_dbi_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &panel_mipi_dbi_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "panel-mipi-dbi",
 	.desc			= "MIPI DBI compatible display panel",
@@ -388,7 +390,7 @@ static int panel_mipi_dbi_spi_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup_with_color_mode() to run the kernel's default
client setup for DRM. Set fbdev_probe in struct drm_driver, so that
the client setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/pl111/pl111_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c
b/drivers/gpu/drm/pl111/pl111_drv.c
index 02e6b74d5016..13362150b9c6 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -47,6 +47,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fourcc.h>
@@ -225,6 +226,7 @@ static const struct drm_driver pl111_drm_driver = {
 	.patchlevel = 0,
 	.dumb_create = drm_gem_dma_dumb_create,
 	.gem_prime_import_sg_table = pl111_gem_import_sg_table,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = pl111_debugfs_init,
@@ -305,7 +307,7 @@ static int pl111_amba_probe(struct amba_device *amba_dev,
 	if (ret < 0)
 		goto dev_put;
 
-	drm_fbdev_dma_setup(drm, priv->variant->fb_depth);
+	drm_client_setup_with_color_mode(drm, priv->variant->fb_depth);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The rcar-du driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Kieran Bingham <kieran.bingham+renesas at ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at
ideasonboard.com>
---
 drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
index fb719d9aff10..4e0bafc86f50 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
@@ -19,6 +19,7 @@
 #include <linux/wait.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -606,6 +607,7 @@ static const struct drm_driver rcar_du_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.dumb_create		= rcar_du_dumb_create,
 	.gem_prime_import_sg_table = rcar_du_gem_prime_import_sg_table,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &rcar_du_fops,
 	.name			= "rcar-du",
 	.desc			= "Renesas R-Car Display Unit",
@@ -716,7 +718,7 @@ static int rcar_du_probe(struct platform_device *pdev)
 
 	drm_info(&rcdu->ddev, "Device %s probed\n",
dev_name(&pdev->dev));
 
-	drm_fbdev_dma_setup(&rcdu->ddev, 32);
+	drm_client_setup(&rcdu->ddev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The rz-du driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Biju Das <biju.das.jz at bp.renesas.com>
Tested-by: Biju Das <biju.das.jz at bp.renesas.com>
---
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
index bc7c381f92ac..bbd7003335da 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c
@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -79,6 +80,7 @@ DEFINE_DRM_GEM_DMA_FOPS(rzg2l_du_fops);
 static const struct drm_driver rzg2l_du_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.dumb_create		= rzg2l_du_dumb_create,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &rzg2l_du_fops,
 	.name			= "rzg2l-du",
 	.desc			= "Renesas RZ/G2L Display Unit",
@@ -160,7 +162,7 @@ static int rzg2l_du_probe(struct platform_device *pdev)
 
 	drm_info(&rcdu->ddev, "Device %s probed\n",
dev_name(&pdev->dev));
 
-	drm_fbdev_dma_setup(&rcdu->ddev, 32);
+	drm_client_setup(&rcdu->ddev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Geert Uytterhoeven <geert+renesas at glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at
ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
 drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
index ff2883c7fd46..8d3effe3f598 100644
--- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
@@ -18,8 +18,10 @@
 #include <linux/slab.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_modeset_helper.h>
 #include <drm/drm_module.h>
@@ -101,6 +103,7 @@ DEFINE_DRM_GEM_DMA_FOPS(shmob_drm_fops);
 static const struct drm_driver shmob_drm_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &shmob_drm_fops,
 	.name			= "shmob-drm",
 	.desc			= "Renesas SH Mobile DRM",
@@ -257,7 +260,7 @@ static int shmob_drm_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_modeset_cleanup;
 
-	drm_fbdev_dma_setup(ddev, 16);
+	drm_client_setup_with_fourcc(ddev, DRM_FORMAT_RGB565);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: "Noralf Tr?nnes" <noralf at tronnes.org>
Acked-by: Noralf Tr?nnes <noralf at tronnes.org>
---
 drivers/gpu/drm/tiny/repaper.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index 1f78aa3d26bb..77944eb17b3c 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -22,6 +22,7 @@
 #include <linux/thermal.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
@@ -913,6 +914,7 @@ static const struct drm_driver repaper_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &repaper_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name			= "repaper",
 	.desc			= "Pervasive Displays RePaper e-ink panels",
 	.date			= "20170405",
@@ -1118,7 +1120,7 @@ static int repaper_probe(struct spi_device *spi)
 
 	DRM_DEBUG_DRIVER("SPI speed: %uMHz\n", spi->max_speed_hz /
1000000);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Sandy Huang <hjc at rock-chips.com>
Cc: "Heiko St?bner" <heiko at sntech.de>
Cc: Andy Yan <andy.yan at rock-chips.com>
Acked-by: Heiko Stuebner <heiko at sntech.de>
---
 drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 44d769d9234d..83ea6cc8cd21 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -17,6 +17,7 @@
 #include <linux/iommu.h>
 
 #include <drm/drm_aperture.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -191,7 +192,7 @@ static int rockchip_drm_bind(struct device *dev)
 	if (ret)
 		goto err_kms_helper_poll_fini;
 
-	drm_fbdev_dma_setup(drm_dev, 0);
+	drm_client_setup(drm_dev, NULL);
 
 	return 0;
 err_kms_helper_poll_fini:
@@ -226,6 +227,7 @@ static const struct drm_driver rockchip_drm_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	.dumb_create		= rockchip_gem_dumb_create,
 	.gem_prime_import_sg_table	= rockchip_gem_prime_import_sg_table,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.fops			= &rockchip_drm_driver_fops,
 	.name	= DRIVER_NAME,
 	.desc	= DRIVER_DESC,
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The sti driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Alain Volmat <alain.volmat at foss.st.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/sti/sti_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 1799c12babf5..65f180c8e8e2 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -15,6 +15,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -136,6 +137,7 @@ static const struct drm_driver sti_driver = {
 	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
 	.fops = &sti_driver_fops,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	.debugfs_init = sti_drm_dbg_init,
 
@@ -203,7 +205,7 @@ static int sti_bind(struct device *dev)
 
 	drm_mode_config_reset(ddev);
 
-	drm_fbdev_dma_setup(ddev, 32);
+	drm_client_setup(ddev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with-fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v4:
- remove duplicated S-o-b tag (Gerd)
v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Yannick Fertre <yannick.fertre at foss.st.com>
Cc: Raphael Gallais-Pou <raphael.gallais-pou at foss.st.com>
Cc: Philippe Cornu <philippe.cornu at foss.st.com>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou at foss.st.com>
---
 drivers/gpu/drm/stm/drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
index e1232f74dfa5..fee274a60623 100644
--- a/drivers/gpu/drm/stm/drv.c
+++ b/drivers/gpu/drm/stm/drv.c
@@ -18,8 +18,10 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_module.h>
@@ -66,6 +68,7 @@ static const struct drm_driver drv_driver = {
 	.patchlevel = 0,
 	.fops = &drv_driver_fops,
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(stm_gem_dma_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static int drv_load(struct drm_device *ddev)
@@ -206,7 +209,7 @@ static int stm_drm_platform_probe(struct platform_device
*pdev)
 	if (ret)
 		goto err_unload;
 
-	drm_fbdev_dma_setup(ddev, 16);
+	drm_client_setup_with_fourcc(ddev, DRM_FORMAT_RGB565);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The sun4i driver specifies as preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Maxime Ripard <mripard at kernel.org>
Cc: Chen-Yu Tsai <wens at csie.org>
Cc: Jernej Skrabec <jernej.skrabec at gmail.com>
Cc: Samuel Holland <samuel at sholland.org>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c
b/drivers/gpu/drm/sun4i/sun4i_drv.c
index 35d7a7ffd208..c3342789e3b0 100644
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -16,6 +16,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_dma_helper.h>
@@ -55,6 +56,7 @@ static const struct drm_driver sun4i_drv_driver = {
 
 	/* GEM Operations */
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(drm_sun4i_gem_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static int sun4i_drv_bind(struct device *dev)
@@ -111,7 +113,7 @@ static int sun4i_drv_bind(struct device *dev)
 	if (ret)
 		goto finish_poll;
 
-	drm_fbdev_dma_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	dev_set_drvdata(dev, drm);
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The tidss driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Jyri Sarha <jyri.sarha at iki.fi>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tidss/tidss_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tidss/tidss_drv.c
b/drivers/gpu/drm/tidss/tidss_drv.c
index d15f836dca95..2428b9aaa003 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -11,6 +11,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -109,6 +110,7 @@ static const struct drm_driver tidss_driver = {
 	.fops			= &tidss_fops,
 	.release		= tidss_release,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.name			= "tidss",
 	.desc			= "TI Keystone DSS",
 	.date			= "20180215",
@@ -186,7 +188,7 @@ static int tidss_probe(struct platform_device *pdev)
 		goto err_irq_uninstall;
 	}
 
-	drm_fbdev_dma_setup(ddev, 32);
+	drm_client_setup(ddev, NULL);
 
 	dev_dbg(dev, "%s done\n", __func__);
 
-- 
2.46.0

Call drm_client_setup_with_color_mode() to run the kernel's default
client setup for DRM. Set fbdev_probe in struct drm_driver, so that
the client setup can start the common fbdev client.

v3:
- add DRM_FBDEV_DMA_DRIVER_OPS macro

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Jyri Sarha <jyri.sarha at iki.fi>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tilcdc/tilcdc_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index cd5eefa06060..8c9f3705aa6c 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -14,6 +14,7 @@
 #include <linux/pm_runtime.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
@@ -374,7 +375,8 @@ static int tilcdc_init(const struct drm_driver *ddrv, struct
device *dev)
 		goto init_failed;
 	priv->is_registered = true;
 
-	drm_fbdev_dma_setup(ddev, bpp);
+	drm_client_setup_with_color_mode(ddev, bpp);
+
 	return 0;
 
 init_failed:
@@ -472,6 +474,7 @@ DEFINE_DRM_GEM_DMA_FOPS(fops);
 static const struct drm_driver tilcdc_driver = {
 	.driver_features    = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init       = tilcdc_debugfs_init,
 #endif
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: David Lechner <david at lechnology.com>
Acked-by: David Lechner <david at lechnology.com>
---
 drivers/gpu/drm/tiny/st7586.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index b9c6ed352182..97013685c62f 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -13,6 +13,7 @@
 #include <video/mipi_display.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_dma_helper.h>
@@ -290,6 +291,7 @@ static const struct drm_driver st7586_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &st7586_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "st7586",
 	.desc			= "Sitronix ST7586",
@@ -371,7 +373,7 @@ static int st7586_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: David Lechner <david at lechnology.com>
Acked-by: David Lechner <david at lechnology.com>
---
 drivers/gpu/drm/tiny/st7735r.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index 1676da00883d..0747ebd999cc 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -17,6 +17,7 @@
 #include <video/mipi_display.h>
 
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
 #include <drm/drm_gem_atomic_helper.h>
@@ -155,6 +156,7 @@ static const struct drm_driver st7735r_driver = {
 	.driver_features	= DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.fops			= &st7735r_fops,
 	DRM_GEM_DMA_DRIVER_OPS_VMAP,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 	.debugfs_init		= mipi_dbi_debugfs_init,
 	.name			= "st7735r",
 	.desc			= "Sitronix ST7735R",
@@ -241,7 +243,7 @@ static int st7735r_probe(struct spi_device *spi)
 
 	spi_set_drvdata(spi, drm);
 
-	drm_fbdev_dma_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Linus Walleij <linus.walleij at linaro.org>
Acked-by: Linus Walleij <linus.walleij at linaro.org>
---
 drivers/gpu/drm/tve200/tve200_drv.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/tve200/tve200_drv.c
b/drivers/gpu/drm/tve200/tve200_drv.c
index acce210e2554..b30340a2141d 100644
--- a/drivers/gpu/drm/tve200/tve200_drv.c
+++ b/drivers/gpu/drm/tve200/tve200_drv.c
@@ -39,8 +39,10 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem_dma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_module.h>
@@ -149,6 +151,7 @@ static const struct drm_driver tve200_drm_driver = {
 	.minor = 0,
 	.patchlevel = 0,
 	DRM_GEM_DMA_DRIVER_OPS,
+	DRM_FBDEV_DMA_DRIVER_OPS,
 };
 
 static int tve200_probe(struct platform_device *pdev)
@@ -221,11 +224,7 @@ static int tve200_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto clk_disable;
 
-	/*
-	 * Passing in 16 here will make the RGB565 mode the default
-	 * Passing in 32 will use XRGB8888 mode
-	 */
-	drm_fbdev_dma_setup(drm, 16);
+	drm_client_setup_with_fourcc(drm, DRM_FORMAT_RGB565);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Maxime Ripard <mripard at kernel.org>
Cc: Dave Stevenson <dave.stevenson at raspberrypi.com>
Cc: Raspberry Pi Kernel Maintenance <kernel-list at raspberrypi.com>
Reviewed-by: Dave Stevenson <dave.stevenson at raspberrypi.com>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index c133e96b8aca..86786caaf8a5 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -32,8 +32,10 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_dma.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_vblank.h>
 
 #include <soc/bcm2835/raspberrypi-firmware.h>
@@ -212,6 +214,7 @@ const struct drm_driver vc4_drm_driver = {
 	.gem_create_object = vc4_create_object,
 
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(vc4_bo_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	.ioctls = vc4_drm_ioctls,
 	.num_ioctls = ARRAY_SIZE(vc4_drm_ioctls),
@@ -389,7 +392,7 @@ static int vc4_drm_bind(struct device *dev)
 	if (ret < 0)
 		goto err;
 
-	drm_fbdev_dma_setup(drm, 16);
+	drm_client_setup_with_fourcc(drm, DRM_FORMAT_RGB565);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
Cc: Michal Simek <michal.simek at amd.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at
ideasonboard.com>
---
 drivers/gpu/drm/xlnx/zynqmp_kms.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xlnx/zynqmp_kms.c
b/drivers/gpu/drm/xlnx/zynqmp_kms.c
index bd1368df7870..2452c2f09161 100644
--- a/drivers/gpu/drm/xlnx/zynqmp_kms.c
+++ b/drivers/gpu/drm/xlnx/zynqmp_kms.c
@@ -14,6 +14,7 @@
 #include <drm/drm_blend.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_bridge_connector.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_device.h>
@@ -402,6 +403,7 @@ static const struct drm_driver zynqmp_dpsub_drm_driver = {
 					  DRIVER_ATOMIC,
 
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(zynqmp_dpsub_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	.fops				= &zynqmp_dpsub_drm_fops,
 
@@ -523,7 +525,7 @@ int zynqmp_dpsub_drm_init(struct zynqmp_dpsub *dpsub)
 		goto err_poll_fini;
 
 	/* Initialize fbdev generic emulation. */
-	drm_fbdev_dma_setup(drm, 24);
+	drm_client_setup_with_fourcc(drm, DRM_FORMAT_RGB888);
 
 	return 0;
 
-- 
2.46.0

The old setup function drm_fbdev_dma_setup() is unused. Remove it and
its internal callbacks. New drivers should call drm_client_setup()
instead.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_dma.c | 120 +-------------------------------
 include/drm/drm_fbdev_dma.h     |   7 --
 2 files changed, 1 insertion(+), 126 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_dma.c b/drivers/gpu/drm/drm_fbdev_dma.c
index 9ce754ebe18e..2343af1b09bc 100644
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@@ -2,15 +2,13 @@
 
 #include <linux/fb.h>
 
-#include <drm/drm_crtc_helper.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_fbdev_dma.h>
 #include <drm/drm_fb_dma_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_dma_helper.h>
 
-#include <drm/drm_fbdev_dma.h>
-
 /*
  * struct fb_ops
  */
@@ -102,12 +100,6 @@ static const struct fb_ops drm_fbdev_dma_deferred_fb_ops =
{
  * struct drm_fb_helper
  */
 
-static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
-					 struct drm_fb_helper_surface_size *sizes)
-{
-	return drm_fbdev_dma_driver_fbdev_probe(fb_helper, sizes);
-}
-
 static int drm_fbdev_dma_helper_fb_dirty(struct drm_fb_helper *helper,
 					 struct drm_clip_rect *clip)
 {
@@ -128,7 +120,6 @@ static int drm_fbdev_dma_helper_fb_dirty(struct
drm_fb_helper *helper,
 }
 
 static const struct drm_fb_helper_funcs drm_fbdev_dma_helper_funcs = {
-	.fb_probe = drm_fbdev_dma_helper_fb_probe,
 	.fb_dirty = drm_fbdev_dma_helper_fb_dirty,
 };
 
@@ -246,112 +237,3 @@ int drm_fbdev_dma_driver_fbdev_probe(struct drm_fb_helper
*fb_helper,
 	return ret;
 }
 EXPORT_SYMBOL(drm_fbdev_dma_driver_fbdev_probe);
-
-/*
- * struct drm_client_funcs
- */
-
-static void drm_fbdev_dma_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int drm_fbdev_dma_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int drm_fbdev_dma_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "fbdev-dma: Failed to setup generic emulation
(ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs drm_fbdev_dma_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= drm_fbdev_dma_client_unregister,
-	.restore	= drm_fbdev_dma_client_restore,
-	.hotplug	= drm_fbdev_dma_client_hotplug,
-};
-
-/**
- * drm_fbdev_dma_setup() - Setup fbdev emulation for GEM DMA helpers
- * @dev: DRM device
- * @preferred_bpp: Preferred bits per pixel for the device.
- *                 32 is used if this is zero.
- *
- * This function sets up fbdev emulation for GEM DMA drivers that support
- * dumb buffers with a virtual address and that can be mmap'ed.
- * drm_fbdev_dma_setup() shall be called after the DRM driver registered
- * the new DRM device with drm_dev_register().
- *
- * Restore, hotplug events and teardown are all taken care of. Drivers that do
- * suspend/resume need to call drm_fb_helper_set_suspend_unlocked() themselves.
- * Simple drivers might use drm_mode_config_helper_suspend().
- *
- * This function is safe to call even when there are no connectors present.
- * Setup will be retried on the next hotplug event.
- *
- * The fbdev is destroyed by drm_dev_unregister().
- */
-void drm_fbdev_dma_setup(struct drm_device *dev, unsigned int preferred_bpp)
-{
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(dev, fb_helper, preferred_bpp,
&drm_fbdev_dma_helper_funcs);
-
-	ret = drm_client_init(dev, &fb_helper->client, "fbdev",
&drm_fbdev_dma_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_client_init;
-	}
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-}
-EXPORT_SYMBOL(drm_fbdev_dma_setup);
diff --git a/include/drm/drm_fbdev_dma.h b/include/drm/drm_fbdev_dma.h
index 6ae4de46497c..fb3f2a9aa01a 100644
--- a/include/drm/drm_fbdev_dma.h
+++ b/include/drm/drm_fbdev_dma.h
@@ -3,7 +3,6 @@
 #ifndef DRM_FBDEV_DMA_H
 #define DRM_FBDEV_DMA_H
 
-struct drm_device;
 struct drm_fb_helper;
 struct drm_fb_helper_surface_size;
 
@@ -13,15 +12,9 @@ int drm_fbdev_dma_driver_fbdev_probe(struct drm_fb_helper
*fb_helper,
 
 #define DRM_FBDEV_DMA_DRIVER_OPS \
 	.fbdev_probe = drm_fbdev_dma_driver_fbdev_probe
-
-void drm_fbdev_dma_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
-static inline void drm_fbdev_dma_setup(struct drm_device *dev, unsigned int
preferred_bpp)
-{ }
-
 #define DRM_FBDEV_DMA_DRIVER_OPS \
 	.fbdev_probe = NULL
-
 #endif
 
 #endif
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and reimplement the old fb_probe callback on top of it. Provide an
initializer macro for struct drm_driver that sets the callback
according to the kernel configuration.

This change allows the common fbdev client to run on top of SHMEM-
based DRM drivers.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_shmem.c | 60 ++++++++++++++++++-------------
 include/drm/drm_fbdev_shmem.h     | 11 ++++++
 2 files changed, 47 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_shmem.c
b/drivers/gpu/drm/drm_fbdev_shmem.c
index 0c785007f11b..3bca333917d1 100644
--- a/drivers/gpu/drm/drm_fbdev_shmem.c
+++ b/drivers/gpu/drm/drm_fbdev_shmem.c
@@ -107,6 +107,40 @@ static struct page *drm_fbdev_shmem_get_page(struct fb_info
*info, unsigned long
 
 static int drm_fbdev_shmem_helper_fb_probe(struct drm_fb_helper *fb_helper,
 					   struct drm_fb_helper_surface_size *sizes)
+{
+	return drm_fbdev_shmem_driver_fbdev_probe(fb_helper, sizes);
+}
+
+static int drm_fbdev_shmem_helper_fb_dirty(struct drm_fb_helper *helper,
+					   struct drm_clip_rect *clip)
+{
+	struct drm_device *dev = helper->dev;
+	int ret;
+
+	/* Call damage handlers only if necessary */
+	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+		return 0;
+
+	if (helper->fb->funcs->dirty) {
+		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct drm_fb_helper_funcs drm_fbdev_shmem_helper_funcs = {
+	.fb_probe = drm_fbdev_shmem_helper_fb_probe,
+	.fb_dirty = drm_fbdev_shmem_helper_fb_dirty,
+};
+
+/*
+ * struct drm_driver
+ */
+
+int drm_fbdev_shmem_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				       struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_client_dev *client = &fb_helper->client;
 	struct drm_device *dev = fb_helper->dev;
@@ -139,6 +173,7 @@ static int drm_fbdev_shmem_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 		goto err_drm_client_buffer_delete;
 	}
 
+	fb_helper->funcs = &drm_fbdev_shmem_helper_funcs;
 	fb_helper->buffer = buffer;
 	fb_helper->fb = fb;
 
@@ -182,30 +217,7 @@ static int drm_fbdev_shmem_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 	drm_client_framebuffer_delete(buffer);
 	return ret;
 }
-
-static int drm_fbdev_shmem_helper_fb_dirty(struct drm_fb_helper *helper,
-					   struct drm_clip_rect *clip)
-{
-	struct drm_device *dev = helper->dev;
-	int ret;
-
-	/* Call damage handlers only if necessary */
-	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
-		return 0;
-
-	if (helper->fb->funcs->dirty) {
-		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
-		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
-			return ret;
-	}
-
-	return 0;
-}
-
-static const struct drm_fb_helper_funcs drm_fbdev_shmem_helper_funcs = {
-	.fb_probe = drm_fbdev_shmem_helper_fb_probe,
-	.fb_dirty = drm_fbdev_shmem_helper_fb_dirty,
-};
+EXPORT_SYMBOL(drm_fbdev_shmem_driver_fbdev_probe);
 
 /*
  * struct drm_client_funcs
diff --git a/include/drm/drm_fbdev_shmem.h b/include/drm/drm_fbdev_shmem.h
index fb43cadd1950..3a5d1efa9d55 100644
--- a/include/drm/drm_fbdev_shmem.h
+++ b/include/drm/drm_fbdev_shmem.h
@@ -4,12 +4,23 @@
 #define DRM_FBDEV_SHMEM_H
 
 struct drm_device;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
+int drm_fbdev_shmem_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				       struct drm_fb_helper_surface_size *sizes);
+
+#define DRM_FBDEV_SHMEM_DRIVER_OPS \
+	.fbdev_probe = drm_fbdev_shmem_driver_fbdev_probe
+
 void drm_fbdev_shmem_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
 static inline void drm_fbdev_shmem_setup(struct drm_device *dev, unsigned int
preferred_bpp)
 { }
+
+#define DRM_FBDEV_SHMEM_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 #endif
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The ast driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Jocelyn Falempe <jfalempe at redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe at redhat.com>
---
 drivers/gpu/drm/ast/ast_drv.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 225817087b4d..debdfd0e197e 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -32,6 +32,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_gem_shmem_helper.h>
@@ -64,7 +65,8 @@ static const struct drm_driver ast_driver = {
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
 
-	DRM_GEM_SHMEM_DRIVER_OPS
+	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 /*
@@ -360,7 +362,7 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	if (ret)
 		return ret;
 
-	drm_fbdev_shmem_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The bochs driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v4:
- rebase on top of GEM-SHMEM

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/bochs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
index 69c5f65e9853..adffdb42b5b7 100644
--- a/drivers/gpu/drm/tiny/bochs.c
+++ b/drivers/gpu/drm/tiny/bochs.c
@@ -6,6 +6,7 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_edid.h>
@@ -674,6 +675,7 @@ static const struct drm_driver bochs_driver = {
 	.major			= 1,
 	.minor			= 0,
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 /* ---------------------------------------------------------------------- */
@@ -732,7 +734,8 @@ static int bochs_pci_probe(struct pci_dev *pdev, const
struct pci_device_id *ent
 	if (ret)
 		goto err_free_dev;
 
-	drm_fbdev_shmem_setup(dev, 32);
+	drm_client_setup(dev, NULL);
+
 	return ret;
 
 err_free_dev:
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The cirrus driver requests the same client pixel format as the value
stored in struct drm_mode_config.preferred_depth. The fbdev client
also looks at this value for the default pixel format. Thus remove
the format selection from cirrus.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/cirrus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index 751326e3d9c3..20c4479ed4c3 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -27,6 +27,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
@@ -662,6 +663,7 @@ static const struct drm_driver cirrus_driver = {
 
 	.fops		 = &cirrus_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 static int cirrus_pci_probe(struct pci_dev *pdev,
@@ -716,7 +718,7 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		return ret;
 
-	drm_fbdev_shmem_setup(dev, 16);
+	drm_client_setup(dev, NULL);
 	return 0;
 }
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Hans de Goede <hdegoede at redhat.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/gm12u320.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 0bd7707c053e..0c17ae532fb4 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -9,6 +9,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_drv.h>
@@ -632,6 +633,7 @@ static const struct drm_driver gm12u320_drm_driver = {
 	.fops		 = &gm12u320_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
 	.gem_prime_import = gm12u320_gem_prime_import,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 static const struct drm_mode_config_funcs gm12u320_mode_config_funcs = {
@@ -706,7 +708,7 @@ static int gm12u320_usb_probe(struct usb_interface
*interface,
 	if (ret)
 		goto err_put_device;
 
-	drm_fbdev_shmem_setup(dev, 0);
+	drm_client_setup(dev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: "Noralf Tr?nnes" <noralf at tronnes.org>
Acked-by: Noralf Tr?nnes <noralf at tronnes.org>
---
 drivers/gpu/drm/gud/gud_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c
index ac6bbf920c72..09ccdc1dc1a2 100644
--- a/drivers/gpu/drm/gud/gud_drv.c
+++ b/drivers/gpu/drm/gud/gud_drv.c
@@ -15,6 +15,7 @@
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_blend.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_drv.h>
@@ -376,6 +377,7 @@ static const struct drm_driver gud_drm_driver = {
 	.fops			= &gud_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
 	.gem_prime_import	= gud_gem_prime_import,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 
 	.name			= "gud",
 	.desc			= "Generic USB Display",
@@ -622,7 +624,7 @@ static int gud_probe(struct usb_interface *intf, const
struct usb_device_id *id)
 
 	drm_kms_helper_poll_init(drm);
 
-	drm_fbdev_shmem_setup(drm, 0);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Deepak Rawat <drawat.floss at gmail.com>
Reviewed-by: Deepak Rawat <drawat.floss at gmail.com>
---
 drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c
b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c
index ff93e08d5036..3077ce5470f6 100644
--- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c
+++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c
@@ -10,6 +10,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_gem_shmem_helper.h>
@@ -36,6 +37,7 @@ static struct drm_driver hyperv_driver = {
 
 	.fops		 = &hv_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 static int hyperv_pci_probe(struct pci_dev *pdev,
@@ -149,7 +151,7 @@ static int hyperv_vmbus_probe(struct hv_device *hdev,
 		goto err_free_mmio;
 	}
 
-	drm_fbdev_shmem_setup(dev, 0);
+	drm_client_setup(dev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup_with_fourcc() to run the kernel's default client
setup for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

v2:
- use drm_client_setup_with_fourcc()

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Jocelyn Falempe <jfalempe at redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe at redhat.com>
---
 drivers/gpu/drm/mgag200/mgag200_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c
b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 6623ee4e3277..29087e2398df 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -11,9 +11,11 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_ioctl.h>
 #include <drm/drm_managed.h>
 #include <drm/drm_module.h>
@@ -129,6 +131,7 @@ static const struct drm_driver mgag200_driver = {
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 };
 
 /*
@@ -314,7 +317,7 @@ mgag200_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	 * FIXME: A 24-bit color depth does not work with 24 bpp on
 	 * G200ER. Force 32 bpp.
 	 */
-	drm_fbdev_shmem_setup(dev, 32);
+	drm_client_setup_with_fourcc(dev, DRM_FORMAT_XRGB8888);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Javier Martinez Canillas <javierm at redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/ofdrm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c
index 35996f7eedac..04ffa93de44a 100644
--- a/drivers/gpu/drm/tiny/ofdrm.c
+++ b/drivers/gpu/drm/tiny/ofdrm.c
@@ -7,6 +7,7 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_device.h>
@@ -1344,6 +1345,7 @@ DEFINE_DRM_GEM_FOPS(ofdrm_fops);
 
 static struct drm_driver ofdrm_driver = {
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 	.name			= DRIVER_NAME,
 	.desc			= DRIVER_DESC,
 	.date			= DRIVER_DATE,
@@ -1361,7 +1363,6 @@ static int ofdrm_probe(struct platform_device *pdev)
 {
 	struct ofdrm_device *odev;
 	struct drm_device *dev;
-	unsigned int color_mode;
 	int ret;
 
 	odev = ofdrm_device_create(&ofdrm_driver, pdev);
@@ -1373,11 +1374,7 @@ static int ofdrm_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	color_mode = drm_format_info_bpp(odev->format, 0);
-	if (color_mode == 16)
-		color_mode = odev->format->depth; // can be 15 or 16
-
-	drm_fbdev_shmem_setup(dev, color_mode);
+	drm_client_setup(dev, odev->format);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Javier Martinez Canillas <javierm at redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tiny/simpledrm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
index d19e10289428..484901e5e2f4 100644
--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -12,6 +12,7 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_state_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_damage_helper.h>
@@ -1009,6 +1010,7 @@ DEFINE_DRM_GEM_FOPS(simpledrm_fops);
 
 static struct drm_driver simpledrm_driver = {
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 	.name			= DRIVER_NAME,
 	.desc			= DRIVER_DESC,
 	.date			= DRIVER_DATE,
@@ -1026,7 +1028,6 @@ static int simpledrm_probe(struct platform_device *pdev)
 {
 	struct simpledrm_device *sdev;
 	struct drm_device *dev;
-	unsigned int color_mode;
 	int ret;
 
 	sdev = simpledrm_device_create(&simpledrm_driver, pdev);
@@ -1038,11 +1039,7 @@ static int simpledrm_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	color_mode = drm_format_info_bpp(sdev->format, 0);
-	if (color_mode == 16)
-		color_mode = sdev->format->depth; // can be 15 or 16
-
-	drm_fbdev_shmem_setup(dev, color_mode);
+	drm_client_setup(dev, sdev->format);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The solomon driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Javier Martinez Canillas <javierm at redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/solomon/ssd130x.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/solomon/ssd130x.c
b/drivers/gpu/drm/solomon/ssd130x.c
index 6f51bcf774e2..29b2f82d81f8 100644
--- a/drivers/gpu/drm/solomon/ssd130x.c
+++ b/drivers/gpu/drm/solomon/ssd130x.c
@@ -20,6 +20,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_edid.h>
@@ -1780,6 +1781,7 @@ DEFINE_DRM_GEM_FOPS(ssd130x_fops);
 
 static const struct drm_driver ssd130x_drm_driver = {
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 	.name			= DRIVER_NAME,
 	.desc			= DRIVER_DESC,
 	.date			= DRIVER_DATE,
@@ -2029,7 +2031,7 @@ struct ssd130x_device *ssd130x_probe(struct device *dev,
struct regmap *regmap)
 	if (ret)
 		return ERR_PTR(dev_err_probe(dev, ret, "DRM device register
failed\n"));
 
-	drm_fbdev_shmem_setup(drm, 32);
+	drm_client_setup(drm, NULL);
 
 	return ssd130x;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Sean Paul <sean at poorly.run>
Cc: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/udl/udl_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 280a09a6e2ad..8d8ae40f945c 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -6,6 +6,7 @@
 #include <linux/module.h>
 
 #include <drm/drm_drv.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_file.h>
 #include <drm/drm_gem_shmem_helper.h>
@@ -73,6 +74,7 @@ static const struct drm_driver driver = {
 	.fops = &udl_driver_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
 	.gem_prime_import = udl_driver_gem_prime_import,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
@@ -117,7 +119,7 @@ static int udl_usb_probe(struct usb_interface *interface,
 
 	DRM_INFO("Initialized udl on minor %d\n",
udl->drm.primary->index);
 
-	drm_fbdev_shmem_setup(&udl->drm, 0);
+	drm_client_setup(&udl->drm, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The virtgpu driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: David Airlie <airlied at redhat.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Cc: Gurchetan Singh <gurchetansingh at chromium.org>
Cc: Chia-I Wu <olvaffe at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c
b/drivers/gpu/drm/virtio/virtgpu_drv.c
index e5a2665e50ea..1e08d91a4d17 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -34,6 +34,7 @@
 #include <drm/drm.h>
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_file.h>
@@ -103,7 +104,8 @@ static int virtio_gpu_probe(struct virtio_device *vdev)
 	if (ret)
 		goto err_deinit;
 
-	drm_fbdev_shmem_setup(vdev->priv, 32);
+	drm_client_setup(vdev->priv, NULL);
+
 	return 0;
 
 err_deinit:
@@ -184,6 +186,8 @@ static const struct drm_driver driver = {
 	.dumb_create = virtio_gpu_mode_dumb_create,
 	.dumb_map_offset = virtio_gpu_mode_dumb_mmap,
 
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
+
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = virtio_gpu_debugfs_init,
 #endif
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Rodrigo Siqueira <rodrigosiqueiramelo at gmail.com>
Cc: Melissa Wen <melissa.srw at gmail.com>
Cc: "Ma?ra Canal" <mairacanal at riseup.net>
Cc: Haneen Mohammed <hamohammed.sa at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/vkms/vkms_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index 0c1a713b7b7b..2d1e95cb66e5 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -16,6 +16,7 @@
 #include <drm/drm_gem.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_file.h>
@@ -112,6 +113,7 @@ static const struct drm_driver vkms_driver = {
 	.release		= vkms_release,
 	.fops			= &vkms_driver_fops,
 	DRM_GEM_SHMEM_DRIVER_OPS,
+	DRM_FBDEV_SHMEM_DRIVER_OPS,
 
 	.name			= DRIVER_NAME,
 	.desc			= DRIVER_DESC,
@@ -225,7 +227,7 @@ static int vkms_create(struct vkms_config *config)
 	if (ret)
 		goto out_devres;
 
-	drm_fbdev_shmem_setup(&vkms_device->drm, 0);
+	drm_client_setup(&vkms_device->drm, NULL);
 
 	return 0;
 
-- 
2.46.0

The old setup function drm_fbdev_shmem_setup() is unused. Remove it
and its internal callbacks. New drivers should call drm_client_setup()
instead.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_shmem.c | 120 +-----------------------------
 include/drm/drm_fbdev_shmem.h     |   6 --
 2 files changed, 1 insertion(+), 125 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_shmem.c
b/drivers/gpu/drm/drm_fbdev_shmem.c
index 3bca333917d1..f824369baacd 100644
--- a/drivers/gpu/drm/drm_fbdev_shmem.c
+++ b/drivers/gpu/drm/drm_fbdev_shmem.c
@@ -2,15 +2,13 @@
 
 #include <linux/fb.h>
 
-#include <drm/drm_crtc_helper.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_fbdev_shmem.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_gem_shmem_helper.h>
 
-#include <drm/drm_fbdev_shmem.h>
-
 /*
  * struct fb_ops
  */
@@ -105,12 +103,6 @@ static struct page *drm_fbdev_shmem_get_page(struct fb_info
*info, unsigned long
  * struct drm_fb_helper
  */
 
-static int drm_fbdev_shmem_helper_fb_probe(struct drm_fb_helper *fb_helper,
-					   struct drm_fb_helper_surface_size *sizes)
-{
-	return drm_fbdev_shmem_driver_fbdev_probe(fb_helper, sizes);
-}
-
 static int drm_fbdev_shmem_helper_fb_dirty(struct drm_fb_helper *helper,
 					   struct drm_clip_rect *clip)
 {
@@ -131,7 +123,6 @@ static int drm_fbdev_shmem_helper_fb_dirty(struct
drm_fb_helper *helper,
 }
 
 static const struct drm_fb_helper_funcs drm_fbdev_shmem_helper_funcs = {
-	.fb_probe = drm_fbdev_shmem_helper_fb_probe,
 	.fb_dirty = drm_fbdev_shmem_helper_fb_dirty,
 };
 
@@ -218,112 +209,3 @@ int drm_fbdev_shmem_driver_fbdev_probe(struct
drm_fb_helper *fb_helper,
 	return ret;
 }
 EXPORT_SYMBOL(drm_fbdev_shmem_driver_fbdev_probe);
-
-/*
- * struct drm_client_funcs
- */
-
-static void drm_fbdev_shmem_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int drm_fbdev_shmem_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int drm_fbdev_shmem_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "fbdev-shmem: Failed to setup emulation (ret=%d)\n",
ret);
-	return ret;
-}
-
-static const struct drm_client_funcs drm_fbdev_shmem_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= drm_fbdev_shmem_client_unregister,
-	.restore	= drm_fbdev_shmem_client_restore,
-	.hotplug	= drm_fbdev_shmem_client_hotplug,
-};
-
-/**
- * drm_fbdev_shmem_setup() - Setup fbdev emulation for GEM SHMEM helpers
- * @dev: DRM device
- * @preferred_bpp: Preferred bits per pixel for the device.
- *                 32 is used if this is zero.
- *
- * This function sets up fbdev emulation for GEM DMA drivers that support
- * dumb buffers with a virtual address and that can be mmap'ed.
- * drm_fbdev_shmem_setup() shall be called after the DRM driver registered
- * the new DRM device with drm_dev_register().
- *
- * Restore, hotplug events and teardown are all taken care of. Drivers that do
- * suspend/resume need to call drm_fb_helper_set_suspend_unlocked() themselves.
- * Simple drivers might use drm_mode_config_helper_suspend().
- *
- * This function is safe to call even when there are no connectors present.
- * Setup will be retried on the next hotplug event.
- *
- * The fbdev is destroyed by drm_dev_unregister().
- */
-void drm_fbdev_shmem_setup(struct drm_device *dev, unsigned int preferred_bpp)
-{
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(dev, fb_helper, preferred_bpp,
&drm_fbdev_shmem_helper_funcs);
-
-	ret = drm_client_init(dev, &fb_helper->client, "fbdev",
&drm_fbdev_shmem_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_client_init;
-	}
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-}
-EXPORT_SYMBOL(drm_fbdev_shmem_setup);
diff --git a/include/drm/drm_fbdev_shmem.h b/include/drm/drm_fbdev_shmem.h
index 3a5d1efa9d55..2fc708964d75 100644
--- a/include/drm/drm_fbdev_shmem.h
+++ b/include/drm/drm_fbdev_shmem.h
@@ -3,7 +3,6 @@
 #ifndef DRM_FBDEV_SHMEM_H
 #define DRM_FBDEV_SHMEM_H
 
-struct drm_device;
 struct drm_fb_helper;
 struct drm_fb_helper_surface_size;
 
@@ -13,12 +12,7 @@ int drm_fbdev_shmem_driver_fbdev_probe(struct drm_fb_helper
*fb_helper,
 
 #define DRM_FBDEV_SHMEM_DRIVER_OPS \
 	.fbdev_probe = drm_fbdev_shmem_driver_fbdev_probe
-
-void drm_fbdev_shmem_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
-static inline void drm_fbdev_shmem_setup(struct drm_device *dev, unsigned int
preferred_bpp)
-{ }
-
 #define DRM_FBDEV_SHMEM_DRIVER_OPS \
 	.fbdev_probe = NULL
 #endif
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and reimplement the old fb_probe callback on top of it. Provide an
initializer macro for struct drm_driver that sets the callback
according to the kernel configuration.

This change allows the common fbdev client to run on top of TTM-
based DRM drivers.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_ttm.c | 142 +++++++++++++++++---------------
 include/drm/drm_fbdev_ttm.h     |  13 +++
 2 files changed, 90 insertions(+), 65 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_ttm.c b/drivers/gpu/drm/drm_fbdev_ttm.c
index 119ffb28aaf9..d799cbe944cd 100644
--- a/drivers/gpu/drm/drm_fbdev_ttm.c
+++ b/drivers/gpu/drm/drm_fbdev_ttm.c
@@ -71,71 +71,7 @@ static const struct fb_ops drm_fbdev_ttm_fb_ops = {
 static int drm_fbdev_ttm_helper_fb_probe(struct drm_fb_helper *fb_helper,
 					     struct drm_fb_helper_surface_size *sizes)
 {
-	struct drm_client_dev *client = &fb_helper->client;
-	struct drm_device *dev = fb_helper->dev;
-	struct drm_client_buffer *buffer;
-	struct fb_info *info;
-	size_t screen_size;
-	void *screen_buffer;
-	u32 format;
-	int ret;
-
-	drm_dbg_kms(dev, "surface width(%d), height(%d) and bpp(%d)\n",
-		    sizes->surface_width, sizes->surface_height,
-		    sizes->surface_bpp);
-
-	format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp,
-					     sizes->surface_depth);
-	buffer = drm_client_framebuffer_create(client, sizes->surface_width,
-					       sizes->surface_height, format);
-	if (IS_ERR(buffer))
-		return PTR_ERR(buffer);
-
-	fb_helper->buffer = buffer;
-	fb_helper->fb = buffer->fb;
-
-	screen_size = buffer->gem->size;
-	screen_buffer = vzalloc(screen_size);
-	if (!screen_buffer) {
-		ret = -ENOMEM;
-		goto err_drm_client_framebuffer_delete;
-	}
-
-	info = drm_fb_helper_alloc_info(fb_helper);
-	if (IS_ERR(info)) {
-		ret = PTR_ERR(info);
-		goto err_vfree;
-	}
-
-	drm_fb_helper_fill_info(info, fb_helper, sizes);
-
-	info->fbops = &drm_fbdev_ttm_fb_ops;
-
-	/* screen */
-	info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
-	info->screen_buffer = screen_buffer;
-	info->fix.smem_len = screen_size;
-
-	/* deferred I/O */
-	fb_helper->fbdefio.delay = HZ / 20;
-	fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
-
-	info->fbdefio = &fb_helper->fbdefio;
-	ret = fb_deferred_io_init(info);
-	if (ret)
-		goto err_drm_fb_helper_release_info;
-
-	return 0;
-
-err_drm_fb_helper_release_info:
-	drm_fb_helper_release_info(fb_helper);
-err_vfree:
-	vfree(screen_buffer);
-err_drm_client_framebuffer_delete:
-	fb_helper->fb = NULL;
-	fb_helper->buffer = NULL;
-	drm_client_framebuffer_delete(buffer);
-	return ret;
+	return drm_fbdev_ttm_driver_fbdev_probe(fb_helper, sizes);
 }
 
 static void drm_fbdev_ttm_damage_blit_real(struct drm_fb_helper *fb_helper,
@@ -240,6 +176,82 @@ static const struct drm_fb_helper_funcs
drm_fbdev_ttm_helper_funcs = {
 	.fb_dirty = drm_fbdev_ttm_helper_fb_dirty,
 };
 
+/*
+ * struct drm_driver
+ */
+
+int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				     struct drm_fb_helper_surface_size *sizes)
+{
+	struct drm_client_dev *client = &fb_helper->client;
+	struct drm_device *dev = fb_helper->dev;
+	struct drm_client_buffer *buffer;
+	struct fb_info *info;
+	size_t screen_size;
+	void *screen_buffer;
+	u32 format;
+	int ret;
+
+	drm_dbg_kms(dev, "surface width(%d), height(%d) and bpp(%d)\n",
+		    sizes->surface_width, sizes->surface_height,
+		    sizes->surface_bpp);
+
+	format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp,
+					     sizes->surface_depth);
+	buffer = drm_client_framebuffer_create(client, sizes->surface_width,
+					       sizes->surface_height, format);
+	if (IS_ERR(buffer))
+		return PTR_ERR(buffer);
+
+	fb_helper->funcs = &drm_fbdev_ttm_helper_funcs;
+	fb_helper->buffer = buffer;
+	fb_helper->fb = buffer->fb;
+
+	screen_size = buffer->gem->size;
+	screen_buffer = vzalloc(screen_size);
+	if (!screen_buffer) {
+		ret = -ENOMEM;
+		goto err_drm_client_framebuffer_delete;
+	}
+
+	info = drm_fb_helper_alloc_info(fb_helper);
+	if (IS_ERR(info)) {
+		ret = PTR_ERR(info);
+		goto err_vfree;
+	}
+
+	drm_fb_helper_fill_info(info, fb_helper, sizes);
+
+	info->fbops = &drm_fbdev_ttm_fb_ops;
+
+	/* screen */
+	info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
+	info->screen_buffer = screen_buffer;
+	info->fix.smem_len = screen_size;
+
+	/* deferred I/O */
+	fb_helper->fbdefio.delay = HZ / 20;
+	fb_helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
+
+	info->fbdefio = &fb_helper->fbdefio;
+	ret = fb_deferred_io_init(info);
+	if (ret)
+		goto err_drm_fb_helper_release_info;
+
+	return 0;
+
+err_drm_fb_helper_release_info:
+	drm_fb_helper_release_info(fb_helper);
+err_vfree:
+	vfree(screen_buffer);
+err_drm_client_framebuffer_delete:
+	fb_helper->fb = NULL;
+	fb_helper->buffer = NULL;
+	drm_client_framebuffer_delete(buffer);
+	return ret;
+}
+EXPORT_SYMBOL(drm_fbdev_ttm_driver_fbdev_probe);
+
 static void drm_fbdev_ttm_client_unregister(struct drm_client_dev *client)
 {
 	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
diff --git a/include/drm/drm_fbdev_ttm.h b/include/drm/drm_fbdev_ttm.h
index 9e6c3bdf3537..243685d02eb1 100644
--- a/include/drm/drm_fbdev_ttm.h
+++ b/include/drm/drm_fbdev_ttm.h
@@ -3,11 +3,24 @@
 #ifndef DRM_FBDEV_TTM_H
 #define DRM_FBDEV_TTM_H
 
+#include <linux/stddef.h>
+
 struct drm_device;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
+int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				     struct drm_fb_helper_surface_size *sizes);
+
+#define DRM_FBDEV_TTM_DRIVER_OPS \
+	.fbdev_probe = drm_fbdev_ttm_driver_fbdev_probe
+
 void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
+#define DRM_FBDEV_TTM_DRIVER_OPS \
+	.fbdev_probe = NULL
+
 static inline void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int
preferred_bpp)
 { }
 #endif
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The amdgpu driver specifies a preferred color mode depending on
the available video memory, with a default of 32. Adapt this for
the new client interface.

v2:
- style changes

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian K?nig" <christian.koenig at amd.com>
Cc: Xinhui Pan <Xinhui.Pan at amd.com>
Tested-by: Hamza Mahfooz <hamza.mahfooz at amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 5dd39e6c6223..849d59e2bca7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -23,6 +23,7 @@
  */
 
 #include <drm/amdgpu_drm.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem.h>
@@ -2341,11 +2342,15 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 	 */
 	if (adev->mode_info.mode_config_initialized &&
 	    !list_empty(&adev_to_drm(adev)->mode_config.connector_list)) {
+		const struct drm_format_info *format;
+
 		/* select 8 bpp console on low vram cards */
 		if (adev->gmc.real_vram_size <= (32*1024*1024))
-			drm_fbdev_ttm_setup(adev_to_drm(adev), 8);
+			format = drm_format_info(DRM_FORMAT_C8);
 		else
-			drm_fbdev_ttm_setup(adev_to_drm(adev), 32);
+			format = NULL;
+
+		drm_client_setup(adev_to_drm(adev), format);
 	}
 
 	ret = amdgpu_debugfs_init(adev);
@@ -2957,6 +2962,7 @@ static const struct drm_driver amdgpu_kms_driver = {
 	.num_ioctls = ARRAY_SIZE(amdgpu_ioctls_kms),
 	.dumb_create = amdgpu_mode_dumb_create,
 	.dumb_map_offset = amdgpu_mode_dumb_mmap,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 	.fops = &amdgpu_driver_kms_fops,
 	.release = &amdgpu_driver_release_kms,
 #ifdef CONFIG_PROC_FS
@@ -2983,6 +2989,7 @@ const struct drm_driver amdgpu_partition_driver = {
 	.num_ioctls = ARRAY_SIZE(amdgpu_ioctls_kms),
 	.dumb_create = amdgpu_mode_dumb_create,
 	.dumb_map_offset = amdgpu_mode_dumb_mmap,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 	.fops = &amdgpu_driver_kms_fops,
 	.release = &amdgpu_driver_release_kms,
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The hibmc driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Xinliang Liu <xinliang.liu at linaro.org>
Cc: Tian Tao <tiantao6 at hisilicon.com>
Cc: Xinwei Kong <kong.kongxinwei at hisilicon.com>
Cc: Sumit Semwal <sumit.semwal at linaro.org>
Cc: Yongqin Liu <yongqin.liu at linaro.org>
Cc: John Stultz <jstultz at google.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 9f9b19ea0587..866a9ecaf8b9 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -16,6 +16,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem_framebuffer_helper.h>
@@ -63,6 +64,7 @@ static const struct drm_driver hibmc_driver = {
 	.debugfs_init		= drm_vram_mm_debugfs_init,
 	.dumb_create            = hibmc_dumb_create,
 	.dumb_map_offset        = drm_gem_ttm_dumb_map_offset,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 };
 
 static int __maybe_unused hibmc_pm_suspend(struct device *dev)
@@ -339,7 +341,7 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
 		goto err_unload;
 	}
 
-	drm_fbdev_ttm_setup(dev, 32);
+	drm_client_setup(dev, NULL);
 
 	return 0;
 
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The loongson driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Sui Jingfeng <suijingfeng at loongson.cn>
Acked-by: Sui Jingfeng <sui.jingfeng at linux.dev>
---
 drivers/gpu/drm/loongson/lsdc_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/loongson/lsdc_drv.c
b/drivers/gpu/drm/loongson/lsdc_drv.c
index adc7344d2f80..a19dce35c839 100644
--- a/drivers/gpu/drm/loongson/lsdc_drv.c
+++ b/drivers/gpu/drm/loongson/lsdc_drv.c
@@ -9,6 +9,7 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem_framebuffer_helper.h>
@@ -47,6 +48,7 @@ static const struct drm_driver lsdc_drm_driver = {
 	.dumb_create = lsdc_dumb_create,
 	.dumb_map_offset = lsdc_dumb_map_offset,
 	.gem_prime_import_sg_table = lsdc_prime_import_sg_table,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 };
 
 static const struct drm_mode_config_funcs lsdc_mode_config_funcs = {
@@ -314,7 +316,7 @@ static int lsdc_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	if (ret)
 		return ret;
 
-	drm_fbdev_ttm_setup(ddev, 32);
+	drm_client_setup(ddev, NULL);
 
 	return 0;
 }
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The nouveau driver specifies a preferred color mode depending on
the available video memory, with a default of 32. Adapt this for
the new client interface.

v2:
- style changes

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Karol Herbst <kherbst at redhat.com>
Cc: Lyude Paul <lyude at redhat.com>
Cc: Danilo Krummrich <dakr at redhat.com>
Acked-by: Danilo Krummrich <dakr at kernel.org>
---
 drivers/gpu/drm/nouveau/nouveau_drm.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c
b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 4a9a9b9c3935..628c47a60de5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -31,6 +31,7 @@
 #include <linux/dynamic_debug.h>
 
 #include <drm/drm_aperture.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem_ttm_helper.h>
@@ -836,6 +837,7 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
 {
 	struct nvkm_device *device;
 	struct nouveau_drm *drm;
+	const struct drm_format_info *format;
 	int ret;
 
 	if (vga_switcheroo_client_probe_defer(pdev))
@@ -873,9 +875,11 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
 		goto fail_pci;
 
 	if (drm->client.device.info.ram_size <= 32 * 1024 * 1024)
-		drm_fbdev_ttm_setup(drm->dev, 8);
+		format = drm_format_info(DRM_FORMAT_C8);
 	else
-		drm_fbdev_ttm_setup(drm->dev, 32);
+		format = NULL;
+
+	drm_client_setup(drm->dev, format);
 
 	quirk_broken_nv_runpm(pdev);
 	return 0;
@@ -1317,6 +1321,8 @@ driver_stub = {
 	.dumb_create = nouveau_display_dumb_create,
 	.dumb_map_offset = drm_gem_ttm_dumb_map_offset,
 
+	DRM_FBDEV_TTM_DRIVER_OPS,
+
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 #ifdef GIT_REVISION
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The qxl driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Dave Airlie <airlied at redhat.com>
Cc: Gerd Hoffmann <kraxel at redhat.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/qxl/qxl_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 5eb3f5719fdf..4ef1c134d6dd 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -36,6 +36,7 @@
 #include <drm/drm.h>
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_file.h>
@@ -118,7 +119,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	if (ret)
 		goto modeset_cleanup;
 
-	drm_fbdev_ttm_setup(&qdev->ddev, 32);
+	drm_client_setup(&qdev->ddev, NULL);
 	return 0;
 
 modeset_cleanup:
@@ -293,6 +294,7 @@ static struct drm_driver qxl_driver = {
 	.debugfs_init = qxl_debugfs_init,
 #endif
 	.gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 	.fops = &qxl_fops,
 	.ioctls = qxl_ioctls,
 	.num_ioctls = ARRAY_SIZE(qxl_ioctls),
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The vboxvideo driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Hans de Goede <hdegoede at redhat.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/vboxvideo/vbox_drv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c
b/drivers/gpu/drm/vboxvideo/vbox_drv.c
index ef36834c8673..49dc337b3e01 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
@@ -13,6 +13,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_file.h>
@@ -80,7 +81,7 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	if (ret)
 		goto err_irq_fini;
 
-	drm_fbdev_ttm_setup(&vbox->ddev, 32);
+	drm_client_setup(&vbox->ddev, NULL);
 
 	return 0;
 
@@ -193,6 +194,7 @@ static const struct drm_driver driver = {
 	.patchlevel = DRIVER_PATCHLEVEL,
 
 	DRM_GEM_VRAM_DRIVER,
+	DRM_FBDEV_TTM_DRIVER_OPS,
 };
 
 drm_module_pci_driver_if_modeset(vbox_pci_driver, vbox_modeset);
-- 
2.46.0

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Zack Rusin <zack.rusin at broadcom.com>
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list at
broadcom.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 50ad3105c16e..f9009f5a5aef 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -36,6 +36,7 @@
 #include "ttm_object.h"
 
 #include <drm/drm_aperture.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fbdev_ttm.h>
 #include <drm/drm_gem_ttm_helper.h>
@@ -1628,6 +1629,8 @@ static const struct drm_driver driver = {
 	.prime_handle_to_fd = vmw_prime_handle_to_fd,
 	.gem_prime_import_sg_table = vmw_prime_import_sg_table,
 
+	DRM_FBDEV_TTM_DRIVER_OPS,
+
 	.fops = &vmwgfx_driver_fops,
 	.name = VMWGFX_DRIVER_NAME,
 	.desc = VMWGFX_DRIVER_DESC,
@@ -1679,7 +1682,7 @@ static int vmw_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 
 	vmw_fifo_resource_inc(vmw);
 	vmw_svga_enable(vmw);
-	drm_fbdev_ttm_setup(&vmw->drm,  0);
+	drm_client_setup(&vmw->drm, NULL);
 
 	vmw_debugfs_gem_init(vmw);
 	vmw_debugfs_resource_managers_init(vmw);
-- 
2.46.0

The old setup function drm_fbdev_ttm_setup() is unused. Remove it and
its internal callbacks. New drivers should call drm_client_setup()
instead.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/drm_fbdev_ttm.c | 119 --------------------------------
 include/drm/drm_fbdev_ttm.h     |   6 --
 2 files changed, 125 deletions(-)

diff --git a/drivers/gpu/drm/drm_fbdev_ttm.c b/drivers/gpu/drm/drm_fbdev_ttm.c
index d799cbe944cd..73d35d59590c 100644
--- a/drivers/gpu/drm/drm_fbdev_ttm.c
+++ b/drivers/gpu/drm/drm_fbdev_ttm.c
@@ -65,15 +65,6 @@ static const struct fb_ops drm_fbdev_ttm_fb_ops = {
 	.fb_destroy	= drm_fbdev_ttm_fb_destroy,
 };
 
-/*
- * This function uses the client API to create a framebuffer backed by a dumb
buffer.
- */
-static int drm_fbdev_ttm_helper_fb_probe(struct drm_fb_helper *fb_helper,
-					     struct drm_fb_helper_surface_size *sizes)
-{
-	return drm_fbdev_ttm_driver_fbdev_probe(fb_helper, sizes);
-}
-
 static void drm_fbdev_ttm_damage_blit_real(struct drm_fb_helper *fb_helper,
 					   struct drm_clip_rect *clip,
 					   struct iosys_map *dst)
@@ -172,7 +163,6 @@ static int drm_fbdev_ttm_helper_fb_dirty(struct
drm_fb_helper *helper,
 }
 
 static const struct drm_fb_helper_funcs drm_fbdev_ttm_helper_funcs = {
-	.fb_probe = drm_fbdev_ttm_helper_fb_probe,
 	.fb_dirty = drm_fbdev_ttm_helper_fb_dirty,
 };
 
@@ -251,112 +241,3 @@ int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper
*fb_helper,
 	return ret;
 }
 EXPORT_SYMBOL(drm_fbdev_ttm_driver_fbdev_probe);
-
-static void drm_fbdev_ttm_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int drm_fbdev_ttm_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int drm_fbdev_ttm_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "fbdev: Failed to setup emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs drm_fbdev_ttm_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= drm_fbdev_ttm_client_unregister,
-	.restore	= drm_fbdev_ttm_client_restore,
-	.hotplug	= drm_fbdev_ttm_client_hotplug,
-};
-
-/**
- * drm_fbdev_ttm_setup() - Setup fbdev emulation for TTM-based drivers
- * @dev: DRM device
- * @preferred_bpp: Preferred bits per pixel for the device.
- *
- * This function sets up fbdev emulation for TTM-based drivers that support
- * dumb buffers with a virtual address and that can be mmap'ed.
- * drm_fbdev_ttm_setup() shall be called after the DRM driver registered
- * the new DRM device with drm_dev_register().
- *
- * Restore, hotplug events and teardown are all taken care of. Drivers that do
- * suspend/resume need to call drm_fb_helper_set_suspend_unlocked() themselves.
- * Simple drivers might use drm_mode_config_helper_suspend().
- *
- * In order to provide fixed mmap-able memory ranges, fbdev emulation
- * uses a shadow buffer in system memory. The implementation blits the shadow
- * fbdev buffer onto the real buffer in regular intervals.
- *
- * This function is safe to call even when there are no connectors present.
- * Setup will be retried on the next hotplug event.
- *
- * The fbdev is destroyed by drm_dev_unregister().
- */
-void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int preferred_bpp)
-{
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(dev, fb_helper, preferred_bpp,
&drm_fbdev_ttm_helper_funcs);
-
-	ret = drm_client_init(dev, &fb_helper->client, "fbdev",
&drm_fbdev_ttm_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_client_init;
-	}
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-	return;
-}
-EXPORT_SYMBOL(drm_fbdev_ttm_setup);
diff --git a/include/drm/drm_fbdev_ttm.h b/include/drm/drm_fbdev_ttm.h
index 243685d02eb1..ad4a10bb4c78 100644
--- a/include/drm/drm_fbdev_ttm.h
+++ b/include/drm/drm_fbdev_ttm.h
@@ -5,7 +5,6 @@
 
 #include <linux/stddef.h>
 
-struct drm_device;
 struct drm_fb_helper;
 struct drm_fb_helper_surface_size;
 
@@ -15,14 +14,9 @@ int drm_fbdev_ttm_driver_fbdev_probe(struct drm_fb_helper
*fb_helper,
 
 #define DRM_FBDEV_TTM_DRIVER_OPS \
 	.fbdev_probe = drm_fbdev_ttm_driver_fbdev_probe
-
-void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int preferred_bpp);
 #else
 #define DRM_FBDEV_TTM_DRIVER_OPS \
 	.fbdev_probe = NULL
-
-static inline void drm_fbdev_ttm_setup(struct drm_device *dev, unsigned int
preferred_bpp)
-{ }
 #endif
 
 #endif
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The armada driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v4:
- revert an unrelated cleanup (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Russell King <linux at armlinux.org.uk>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/armada/armada_drm.h   |  11 ++-
 drivers/gpu/drm/armada/armada_drv.c   |   4 +-
 drivers/gpu/drm/armada/armada_fbdev.c | 113 ++------------------------
 3 files changed, 16 insertions(+), 112 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_drm.h
b/drivers/gpu/drm/armada/armada_drm.h
index c303e8c7ff6c..3c0ff221a43b 100644
--- a/drivers/gpu/drm/armada/armada_drm.h
+++ b/drivers/gpu/drm/armada/armada_drm.h
@@ -16,6 +16,8 @@ struct armada_crtc;
 struct armada_gem_object;
 struct clk;
 struct drm_display_mode;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 
 static inline void
 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr)
@@ -74,10 +76,13 @@ struct armada_private {
 #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm)
 
 #if defined(CONFIG_DRM_FBDEV_EMULATION)
-void armada_fbdev_setup(struct drm_device *dev);
+int armada_fbdev_driver_fbdev_probe(struct drm_fb_helper *fbh,
+				    struct drm_fb_helper_surface_size *sizes);
+#define ARMADA_FBDEV_DRIVER_OPS \
+	.fbdev_probe = armada_fbdev_driver_fbdev_probe
 #else
-static inline void armada_fbdev_setup(struct drm_device *dev)
-{ }
+#define ARMADA_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 int armada_overlay_plane_create(struct drm_device *, unsigned long);
diff --git a/drivers/gpu/drm/armada/armada_drv.c
b/drivers/gpu/drm/armada/armada_drv.c
index e51ecc4f7ef4..3dc5f0499e4c 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -12,6 +12,7 @@
 
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_ioctl.h>
 #include <drm/drm_managed.h>
@@ -39,6 +40,7 @@ DEFINE_DRM_GEM_FOPS(armada_drm_fops);
 static const struct drm_driver armada_drm_driver = {
 	.gem_prime_import	= armada_gem_prime_import,
 	.dumb_create		= armada_gem_dumb_create,
+	ARMADA_FBDEV_DRIVER_OPS,
 	.major			= 1,
 	.minor			= 0,
 	.name			= "armada-drm",
@@ -137,7 +139,7 @@ static int armada_drm_bind(struct device *dev)
 	armada_drm_debugfs_init(priv->drm.primary);
 #endif
 
-	armada_fbdev_setup(&priv->drm);
+	drm_client_setup(&priv->drm, NULL);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/armada/armada_fbdev.c
b/drivers/gpu/drm/armada/armada_fbdev.c
index d223176912b6..6ee7ce04ee71 100644
--- a/drivers/gpu/drm/armada/armada_fbdev.c
+++ b/drivers/gpu/drm/armada/armada_fbdev.c
@@ -39,8 +39,10 @@ static const struct fb_ops armada_fb_ops = {
 	.fb_destroy	= armada_fbdev_fb_destroy,
 };
 
-static int armada_fbdev_create(struct drm_fb_helper *fbh,
-	struct drm_fb_helper_surface_size *sizes)
+static const struct drm_fb_helper_funcs armada_fbdev_helper_funcs;
+
+int armada_fbdev_driver_fbdev_probe(struct drm_fb_helper *fbh,
+				    struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_device *dev = fbh->dev;
 	struct drm_mode_fb_cmd2 mode;
@@ -98,6 +100,7 @@ static int armada_fbdev_create(struct drm_fb_helper *fbh,
 	info->fix.smem_len = obj->obj.size;
 	info->screen_size = obj->obj.size;
 	info->screen_base = ptr;
+	fbh->funcs = &armada_fbdev_helper_funcs;
 	fbh->fb = &dfb->fb;
 
 	drm_fb_helper_fill_info(info, fbh, sizes);
@@ -112,109 +115,3 @@ static int armada_fbdev_create(struct drm_fb_helper *fbh,
 	dfb->fb.funcs->destroy(&dfb->fb);
 	return ret;
 }
-
-static int armada_fb_probe(struct drm_fb_helper *fbh,
-	struct drm_fb_helper_surface_size *sizes)
-{
-	int ret = 0;
-
-	if (!fbh->fb) {
-		ret = armada_fbdev_create(fbh, sizes);
-		if (ret == 0)
-			ret = 1;
-	}
-	return ret;
-}
-
-static const struct drm_fb_helper_funcs armada_fb_helper_funcs = {
-	.fb_probe	= armada_fb_probe,
-};
-
-/*
- * Fbdev client and struct drm_client_funcs
- */
-
-static void armada_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fbh = drm_fb_helper_from_client(client);
-
-	if (fbh->info) {
-		drm_fb_helper_unregister_info(fbh);
-	} else {
-		drm_client_release(&fbh->client);
-		drm_fb_helper_unprepare(fbh);
-		kfree(fbh);
-	}
-}
-
-static int armada_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int armada_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fbh = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fbh);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fbh);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fbh);
-err_drm_err:
-	drm_err(dev, "armada: Failed to setup fbdev emulation (ret=%d)\n",
ret);
-	return ret;
-}
-
-static const struct drm_client_funcs armada_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= armada_fbdev_client_unregister,
-	.restore	= armada_fbdev_client_restore,
-	.hotplug	= armada_fbdev_client_hotplug,
-};
-
-void armada_fbdev_setup(struct drm_device *dev)
-{
-	struct drm_fb_helper *fbh;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	fbh = kzalloc(sizeof(*fbh), GFP_KERNEL);
-	if (!fbh)
-		return;
-	drm_fb_helper_prepare(dev, fbh, 32, &armada_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &fbh->client, "fbdev",
&armada_fbdev_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_client_init;
-	}
-
-	drm_client_register(&fbh->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fbh);
-	kfree(fbh);
-	return;
-}
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The exynos-drm driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v4:
- revert an unrelated cleanup (Javier)

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Inki Dae <inki.dae at samsung.com>
Cc: Seung-Woo Kim <sw0312.kim at samsung.com>
Cc: Kyungmin Park <kyungmin.park at samsung.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/exynos/exynos_drm_drv.c   |  4 +-
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 99 ++---------------------
 drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 15 ++--
 3 files changed, 19 insertions(+), 99 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c
b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 7c59e1164a48..2a466d8179f4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -15,6 +15,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_fourcc.h>
@@ -111,6 +112,7 @@ static const struct drm_driver exynos_drm_driver = {
 	.dumb_create		= exynos_drm_gem_dumb_create,
 	.gem_prime_import	= exynos_drm_gem_prime_import,
 	.gem_prime_import_sg_table	= exynos_drm_gem_prime_import_sg_table,
+	EXYNOS_DRM_FBDEV_DRIVER_OPS,
 	.ioctls			= exynos_ioctls,
 	.num_ioctls		= ARRAY_SIZE(exynos_ioctls),
 	.fops			= &exynos_drm_driver_fops,
@@ -288,7 +290,7 @@ static int exynos_drm_bind(struct device *dev)
 	if (ret < 0)
 		goto err_cleanup_poll;
 
-	exynos_drm_fbdev_setup(drm);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index a379c8ca435a..9526a25e90ac 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -23,7 +23,6 @@
 #include "exynos_drm_fbdev.h"
 
 #define MAX_CONNECTOR		4
-#define PREFERRED_BPP		32
 
 static int exynos_drm_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
@@ -87,8 +86,11 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper
*helper,
 	return 0;
 }
 
-static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
-				    struct drm_fb_helper_surface_size *sizes)
+static const struct drm_fb_helper_funcs exynos_drm_fbdev_helper_funcs = {
+};
+
+int exynos_drm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+					struct drm_fb_helper_surface_size *sizes)
 {
 	struct exynos_drm_gem *exynos_gem;
 	struct drm_device *dev = helper->dev;
@@ -120,6 +122,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper
*helper,
 		ret = PTR_ERR(helper->fb);
 		goto err_destroy_gem;
 	}
+	helper->funcs = &exynos_drm_fbdev_helper_funcs;
 
 	ret = exynos_drm_fbdev_update(helper, sizes, exynos_gem);
 	if (ret < 0)
@@ -134,93 +137,3 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper
*helper,
 	exynos_drm_gem_destroy(exynos_gem);
 	return ret;
 }
-
-static const struct drm_fb_helper_funcs exynos_drm_fb_helper_funcs = {
-	.fb_probe =	exynos_drm_fbdev_create,
-};
-
-/*
- * struct drm_client
- */
-
-static void exynos_drm_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int exynos_drm_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int exynos_drm_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs exynos_drm_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= exynos_drm_fbdev_client_unregister,
-	.restore	= exynos_drm_fbdev_client_restore,
-	.hotplug	= exynos_drm_fbdev_client_hotplug,
-};
-
-void exynos_drm_fbdev_setup(struct drm_device *dev)
-{
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(dev, fb_helper, PREFERRED_BPP,
&exynos_drm_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &fb_helper->client, "fbdev",
&exynos_drm_fbdev_client_funcs);
-	if (ret)
-		goto err_drm_client_init;
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
index 1e1dea627cd9..02a9201abea3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
@@ -11,12 +11,17 @@
 #ifndef _EXYNOS_DRM_FBDEV_H_
 #define _EXYNOS_DRM_FBDEV_H_
 
-#ifdef CONFIG_DRM_FBDEV_EMULATION
-void exynos_drm_fbdev_setup(struct drm_device *dev);
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
+
+#if defined(CONFIG_DRM_FBDEV_EMULATION)
+int exynos_drm_fbdev_driver_fbdev_probe(struct drm_fb_helper *fbh,
+					struct drm_fb_helper_surface_size *sizes);
+#define EXYNOS_DRM_FBDEV_DRIVER_OPS \
+	.fbdev_probe = exynos_drm_fbdev_driver_fbdev_probe
 #else
-static inline void exynos_drm_fbdev_setup(struct drm_device *dev)
-{
-}
+#define EXYNOS_DRM_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 #endif
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/gma500/fbdev.c   | 100 +++----------------------------
 drivers/gpu/drm/gma500/psb_drv.c |   4 +-
 drivers/gpu/drm/gma500/psb_drv.h |  12 +++-
 3 files changed, 19 insertions(+), 97 deletions(-)

diff --git a/drivers/gpu/drm/gma500/fbdev.c b/drivers/gpu/drm/gma500/fbdev.c
index 98b44974d42d..8edefea2ef59 100644
--- a/drivers/gpu/drm/gma500/fbdev.c
+++ b/drivers/gpu/drm/gma500/fbdev.c
@@ -143,12 +143,15 @@ static const struct fb_ops psb_fbdev_fb_ops = {
 	.fb_destroy = psb_fbdev_fb_destroy,
 };
 
+static const struct drm_fb_helper_funcs psb_fbdev_fb_helper_funcs = {
+};
+
 /*
- * struct drm_fb_helper_funcs
+ * struct drm_driver
  */
 
-static int psb_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
-			      struct drm_fb_helper_surface_size *sizes)
+int psb_fbdev_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				 struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_device *dev = fb_helper->dev;
 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
@@ -206,6 +209,7 @@ static int psb_fbdev_fb_probe(struct drm_fb_helper
*fb_helper,
 		goto err_drm_gem_object_put;
 	}
 
+	fb_helper->funcs = &psb_fbdev_fb_helper_funcs;
 	fb_helper->fb = fb;
 
 	info = drm_fb_helper_alloc_info(fb_helper);
@@ -246,93 +250,3 @@ static int psb_fbdev_fb_probe(struct drm_fb_helper
*fb_helper,
 	drm_gem_object_put(obj);
 	return ret;
 }
-
-static const struct drm_fb_helper_funcs psb_fbdev_fb_helper_funcs = {
-	.fb_probe = psb_fbdev_fb_probe,
-};
-
-/*
- * struct drm_client_funcs and setup code
- */
-
-static void psb_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_fb_helper_unprepare(fb_helper);
-		drm_client_release(&fb_helper->client);
-		kfree(fb_helper);
-	}
-}
-
-static int psb_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int psb_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup gma500 fbdev emulation (ret=%d)\n",
ret);
-	return ret;
-}
-
-static const struct drm_client_funcs psb_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= psb_fbdev_client_unregister,
-	.restore	= psb_fbdev_client_restore,
-	.hotplug	= psb_fbdev_client_hotplug,
-};
-
-void psb_fbdev_setup(struct drm_psb_private *dev_priv)
-{
-	struct drm_device *dev = &dev_priv->dev;
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(dev, fb_helper, 32, &psb_fbdev_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &fb_helper->client,
"fbdev-gma500", &psb_fbdev_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_fb_helper_unprepare;
-	}
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_fb_helper_unprepare:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-}
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 8b64f61ffaf9..43deefef6ad2 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -20,6 +20,7 @@
 #include <acpi/video.h>
 
 #include <drm/drm.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_ioctl.h>
@@ -475,7 +476,7 @@ static int psb_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
 	if (ret)
 		return ret;
 
-	psb_fbdev_setup(dev_priv);
+	drm_client_setup(dev, NULL);
 
 	return 0;
 }
@@ -506,6 +507,7 @@ static const struct drm_driver driver = {
 	.num_ioctls = ARRAY_SIZE(psb_ioctls),
 
 	.dumb_create = psb_gem_dumb_create,
+	PSB_FBDEV_DRIVER_OPS,
 	.ioctls = psb_ioctls,
 	.fops = &psb_gem_fops,
 	.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index bddf89b82fec..de62cbfcdc72 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -184,6 +184,9 @@
 #define KSEL_BYPASS_25 6
 #define KSEL_BYPASS_83_100 7
 
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
+
 struct opregion_header;
 struct opregion_acpi;
 struct opregion_swsci;
@@ -597,10 +600,13 @@ struct drm_framebuffer *psb_framebuffer_create(struct
drm_device *dev,
 
 /* fbdev */
 #if defined(CONFIG_DRM_FBDEV_EMULATION)
-void psb_fbdev_setup(struct drm_psb_private *dev_priv);
+int psb_fbdev_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				 struct drm_fb_helper_surface_size *sizes);
+#define PSB_FBDEV_DRIVER_OPS \
+	.fbdev_probe = psb_fbdev_driver_fbdev_probe
 #else
-static inline void psb_fbdev_setup(struct drm_psb_private *dev_priv)
-{ }
+#define PSB_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 /* backlight.c */
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The msm driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Rob Clark <robdclark at gmail.com>
Cc: Abhinav Kumar <quic_abhinavk at quicinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
Cc: Sean Paul <sean at poorly.run>
Cc: Marijn Suijten <marijn.suijten at somainline.org>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/msm_drv.c   |   4 +-
 drivers/gpu/drm/msm/msm_drv.h   |  13 ++-
 drivers/gpu/drm/msm/msm_fbdev.c | 144 ++++++--------------------------
 3 files changed, 38 insertions(+), 123 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 9c33f4e3f822..22fe0716d18b 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -10,6 +10,7 @@
 #include <linux/of_address.h>
 #include <linux/uaccess.h>
 
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_ioctl.h>
@@ -292,7 +293,7 @@ static int msm_drm_init(struct device *dev, const struct
drm_driver *drv)
 
 	if (priv->kms_init) {
 		drm_kms_helper_poll_init(ddev);
-		msm_fbdev_setup(ddev);
+		drm_client_setup(ddev, NULL);
 	}
 
 	return 0;
@@ -903,6 +904,7 @@ static const struct drm_driver msm_driver = {
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init       = msm_debugfs_init,
 #endif
+	MSM_FBDEV_DRIVER_OPS,
 	.show_fdinfo        = msm_show_fdinfo,
 	.ioctls             = msm_ioctls,
 	.num_ioctls         = ARRAY_SIZE(msm_ioctls),
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index be016d7b4ef1..63675a3b7097 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -40,6 +40,9 @@ extern struct fault_attr fail_gem_iova;
 #  define should_fail(attr, size) 0
 #endif
 
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
+
 struct msm_kms;
 struct msm_gpu;
 struct msm_mmu;
@@ -298,11 +301,13 @@ struct drm_framebuffer * msm_alloc_stolen_fb(struct
drm_device *dev,
 		int w, int h, int p, uint32_t format);
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
-void msm_fbdev_setup(struct drm_device *dev);
+int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				 struct drm_fb_helper_surface_size *sizes);
+#define MSM_FBDEV_DRIVER_OPS \
+	.fbdev_probe = msm_fbdev_driver_fbdev_probe
 #else
-static inline void msm_fbdev_setup(struct drm_device *dev)
-{
-}
+#define MSM_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 struct hdmi;
diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
index 030bedac632d..c62249b1ab3d 100644
--- a/drivers/gpu/drm/msm/msm_fbdev.c
+++ b/drivers/gpu/drm/msm/msm_fbdev.c
@@ -65,8 +65,31 @@ static const struct fb_ops msm_fb_ops = {
 	.fb_destroy = msm_fbdev_fb_destroy,
 };
 
-static int msm_fbdev_create(struct drm_fb_helper *helper,
-		struct drm_fb_helper_surface_size *sizes)
+static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper,
+			      struct drm_clip_rect *clip)
+{
+	struct drm_device *dev = helper->dev;
+	int ret;
+
+	/* Call damage handlers only if necessary */
+	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+		return 0;
+
+	if (helper->fb->funcs->dirty) {
+		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct drm_fb_helper_funcs msm_fbdev_helper_funcs = {
+	.fb_dirty = msm_fbdev_fb_dirty,
+};
+
+int msm_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				 struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_device *dev = helper->dev;
 	struct msm_drm_private *priv = dev->dev_private;
@@ -114,6 +137,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
 
 	DBG("fbi=%p, dev=%p", fbi, dev);
 
+	helper->funcs = &msm_fbdev_helper_funcs;
 	helper->fb = fb;
 
 	fbi->fbops = &msm_fb_ops;
@@ -138,119 +162,3 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
 	drm_framebuffer_remove(fb);
 	return ret;
 }
-
-static int msm_fbdev_fb_dirty(struct drm_fb_helper *helper,
-			      struct drm_clip_rect *clip)
-{
-	struct drm_device *dev = helper->dev;
-	int ret;
-
-	/* Call damage handlers only if necessary */
-	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
-		return 0;
-
-	if (helper->fb->funcs->dirty) {
-		ret = helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
-		if (drm_WARN_ONCE(dev, ret, "Dirty helper failed: ret=%d\n", ret))
-			return ret;
-	}
-
-	return 0;
-}
-
-static const struct drm_fb_helper_funcs msm_fb_helper_funcs = {
-	.fb_probe = msm_fbdev_create,
-	.fb_dirty = msm_fbdev_fb_dirty,
-};
-
-/*
- * struct drm_client
- */
-
-static void msm_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int msm_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int msm_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs msm_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= msm_fbdev_client_unregister,
-	.restore	= msm_fbdev_client_restore,
-	.hotplug	= msm_fbdev_client_hotplug,
-};
-
-/* initialize fbdev helper */
-void msm_fbdev_setup(struct drm_device *dev)
-{
-	struct drm_fb_helper *helper;
-	int ret;
-
-	if (!fbdev)
-		return;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	helper = kzalloc(sizeof(*helper), GFP_KERNEL);
-	if (!helper)
-		return;
-	drm_fb_helper_prepare(dev, helper, 32, &msm_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &helper->client, "fbdev",
&msm_fbdev_client_funcs);
-	if (ret) {
-		drm_err(dev, "Failed to register client: %d\n", ret);
-		goto err_drm_fb_helper_unprepare;
-	}
-
-	drm_client_register(&helper->client);
-
-	return;
-
-err_drm_fb_helper_unprepare:
-	drm_fb_helper_unprepare(helper);
-	kfree(helper);
-}
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The radeon driver specifies a preferred color mode depending on
the available video memory, with a default of 32. Adapt this for
the new client interface.

v2:
- style changes

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian K?nig" <christian.koenig at amd.com>
Cc: Xinhui Pan <Xinhui.Pan at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/radeon_drv.c   |  14 +++-
 drivers/gpu/drm/radeon/radeon_fbdev.c | 114 ++------------------------
 drivers/gpu/drm/radeon/radeon_mode.h  |  12 ++-
 3 files changed, 27 insertions(+), 113 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c
b/drivers/gpu/drm/radeon/radeon_drv.c
index f36aa71c57c7..eae79f02d254 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -38,8 +38,10 @@
 #include <linux/pci.h>
 
 #include <drm/drm_aperture.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_gem.h>
 #include <drm/drm_ioctl.h>
 #include <drm/drm_pciids.h>
@@ -261,6 +263,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 	unsigned long flags = 0;
 	struct drm_device *ddev;
 	struct radeon_device *rdev;
+	const struct drm_format_info *format;
 	int ret;
 
 	if (!ent)
@@ -324,7 +327,14 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		goto err_agp;
 
-	radeon_fbdev_setup(ddev->dev_private);
+	if (rdev->mc.real_vram_size <= (8 * 1024 * 1024))
+		format = drm_format_info(DRM_FORMAT_C8);
+	else if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32 * 1024 *
1024))
+		format = drm_format_info(DRM_FORMAT_RGB565);
+	else
+		format = NULL;
+
+	drm_client_setup(ddev, format);
 
 	return 0;
 
@@ -590,6 +600,8 @@ static const struct drm_driver kms_driver = {
 
 	.gem_prime_import_sg_table = radeon_gem_prime_import_sg_table,
 
+	RADEON_FBDEV_DRIVER_OPS,
+
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/radeon/radeon_fbdev.c
b/drivers/gpu/drm/radeon/radeon_fbdev.c
index fb70de29545c..0aa20c8df546 100644
--- a/drivers/gpu/drm/radeon/radeon_fbdev.c
+++ b/drivers/gpu/drm/radeon/radeon_fbdev.c
@@ -198,12 +198,11 @@ static const struct fb_ops radeon_fbdev_fb_ops = {
 	.fb_destroy = radeon_fbdev_fb_destroy,
 };
 
-/*
- * Fbdev helpers and struct drm_fb_helper_funcs
- */
+static const struct drm_fb_helper_funcs radeon_fbdev_fb_helper_funcs = {
+};
 
-static int radeon_fbdev_fb_helper_fb_probe(struct drm_fb_helper *fb_helper,
-					   struct drm_fb_helper_surface_size *sizes)
+int radeon_fbdev_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				    struct drm_fb_helper_surface_size *sizes)
 {
 	struct radeon_device *rdev = fb_helper->dev->dev_private;
 	struct drm_mode_fb_cmd2 mode_cmd = { };
@@ -243,6 +242,7 @@ static int radeon_fbdev_fb_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 	}
 
 	/* setup helper */
+	fb_helper->funcs = &radeon_fbdev_fb_helper_funcs;
 	fb_helper->fb = fb;
 
 	/* okay we have an object now allocate the framebuffer */
@@ -288,110 +288,6 @@ static int radeon_fbdev_fb_helper_fb_probe(struct
drm_fb_helper *fb_helper,
 	return ret;
 }
 
-static const struct drm_fb_helper_funcs radeon_fbdev_fb_helper_funcs = {
-	.fb_probe = radeon_fbdev_fb_helper_fb_probe,
-};
-
-/*
- * Fbdev client and struct drm_client_funcs
- */
-
-static void radeon_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = fb_helper->dev;
-	struct radeon_device *rdev = dev->dev_private;
-
-	if (fb_helper->info) {
-		vga_switcheroo_client_fb_set(rdev->pdev, NULL);
-		drm_helper_force_disable_all(dev);
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int radeon_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-	vga_switcheroo_process_delayed_switch();
-
-	return 0;
-}
-
-static int radeon_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	struct radeon_device *rdev = dev->dev_private;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	vga_switcheroo_client_fb_set(rdev->pdev, fb_helper->info);
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup radeon fbdev emulation (ret=%d)\n",
ret);
-	return ret;
-}
-
-static const struct drm_client_funcs radeon_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= radeon_fbdev_client_unregister,
-	.restore	= radeon_fbdev_client_restore,
-	.hotplug	= radeon_fbdev_client_hotplug,
-};
-
-void radeon_fbdev_setup(struct radeon_device *rdev)
-{
-	struct drm_fb_helper *fb_helper;
-	int bpp_sel = 32;
-	int ret;
-
-	if (rdev->mc.real_vram_size <= (8 * 1024 * 1024))
-		bpp_sel = 8;
-	else if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32 * 1024 *
1024))
-		bpp_sel = 16;
-
-	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);
-	if (!fb_helper)
-		return;
-	drm_fb_helper_prepare(rdev_to_drm(rdev), fb_helper, bpp_sel,
&radeon_fbdev_fb_helper_funcs);
-
-	ret = drm_client_init(rdev_to_drm(rdev), &fb_helper->client,
"radeon-fbdev",
-			      &radeon_fbdev_client_funcs);
-	if (ret) {
-		drm_err(rdev_to_drm(rdev), "Failed to register client: %d\n", ret);
-		goto err_drm_client_init;
-	}
-
-	drm_client_register(&fb_helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(fb_helper);
-	kfree(fb_helper);
-}
-
 void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state)
 {
 	if (rdev_to_drm(rdev)->fb_helper)
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
b/drivers/gpu/drm/radeon/radeon_mode.h
index 421c83fc70dc..12a1d99a1815 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -38,6 +38,9 @@
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
 
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
+
 struct edid;
 struct drm_edid;
 struct radeon_bo;
@@ -935,12 +938,15 @@ void dce8_program_fmt(struct drm_encoder *encoder);
 
 /* fbdev layer */
 #if defined(CONFIG_DRM_FBDEV_EMULATION)
-void radeon_fbdev_setup(struct radeon_device *rdev);
+int radeon_fbdev_driver_fbdev_probe(struct drm_fb_helper *fb_helper,
+				    struct drm_fb_helper_surface_size *sizes);
+#define RADEON_FBDEV_DRIVER_OPS \
+	.fbdev_probe = radeon_fbdev_driver_fbdev_probe
 void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state);
 bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo
*robj);
 #else
-static inline void radeon_fbdev_setup(struct radeon_device *rdev)
-{ }
+#define RADEON_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 static inline void radeon_fbdev_set_suspend(struct radeon_device *rdev, int
state)
 { }
 static inline bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct
radeon_bo *robj)
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The tegra driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Thierry Reding <thierry.reding at gmail.com>
Cc: Mikko Perttunen <mperttunen at nvidia.com>
Cc: Jonathan Hunter <jonathanh at nvidia.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/tegra/drm.c   |  5 +-
 drivers/gpu/drm/tegra/drm.h   | 12 +++--
 drivers/gpu/drm/tegra/fbdev.c | 98 +++--------------------------------
 3 files changed, 19 insertions(+), 96 deletions(-)

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index d9f0728c3afd..6186524cf1a4 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -15,6 +15,7 @@
 #include <drm/drm_aperture.h>
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_client_setup.h>
 #include <drm/drm_debugfs.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fourcc.h>
@@ -891,6 +892,8 @@ static const struct drm_driver tegra_drm_driver = {
 
 	.dumb_create = tegra_bo_dumb_create,
 
+	TEGRA_FBDEV_DRIVER_OPS,
+
 	.ioctls = tegra_drm_ioctls,
 	.num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
 	.fops = &tegra_drm_fops,
@@ -1268,7 +1271,7 @@ static int host1x_drm_probe(struct host1x_device *dev)
 	if (err < 0)
 		goto hub;
 
-	tegra_fbdev_setup(drm);
+	drm_client_setup(drm, NULL);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 2f3781e04b0a..0b65e69f3a8a 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -25,6 +25,9 @@
 /* XXX move to include/uapi/drm/drm_fourcc.h? */
 #define DRM_FORMAT_MOD_NVIDIA_SECTOR_LAYOUT BIT_ULL(22)
 
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
+
 struct edid;
 struct reset_control;
 
@@ -190,10 +193,13 @@ struct drm_framebuffer *tegra_fb_create(struct drm_device
*drm,
 					const struct drm_mode_fb_cmd2 *cmd);
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
-void tegra_fbdev_setup(struct drm_device *drm);
+int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				   struct drm_fb_helper_surface_size *sizes);
+#define TEGRA_FBDEV_DRIVER_OPS \
+	.fbdev_probe = tegra_fbdev_driver_fbdev_probe
 #else
-static inline void tegra_fbdev_setup(struct drm_device *drm)
-{ }
+#define TEGRA_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 #endif
 
 extern struct platform_driver tegra_display_hub_driver;
diff --git a/drivers/gpu/drm/tegra/fbdev.c b/drivers/gpu/drm/tegra/fbdev.c
index db6eaac3d30e..cd9d798f8870 100644
--- a/drivers/gpu/drm/tegra/fbdev.c
+++ b/drivers/gpu/drm/tegra/fbdev.c
@@ -66,8 +66,11 @@ static const struct fb_ops tegra_fb_ops = {
 	.fb_destroy = tegra_fbdev_fb_destroy,
 };
 
-static int tegra_fbdev_probe(struct drm_fb_helper *helper,
-			     struct drm_fb_helper_surface_size *sizes)
+static const struct drm_fb_helper_funcs tegra_fbdev_helper_funcs = {
+};
+
+int tegra_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				   struct drm_fb_helper_surface_size *sizes)
 {
 	struct tegra_drm *tegra = helper->dev->dev_private;
 	struct drm_device *drm = helper->dev;
@@ -112,6 +115,7 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
 		return PTR_ERR(fb);
 	}
 
+	helper->funcs = &tegra_fbdev_helper_funcs;
 	helper->fb = fb;
 	helper->info = info;
 
@@ -144,93 +148,3 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
 	drm_framebuffer_remove(fb);
 	return err;
 }
-
-static const struct drm_fb_helper_funcs tegra_fb_helper_funcs = {
-	.fb_probe = tegra_fbdev_probe,
-};
-
-/*
- * struct drm_client
- */
-
-static void tegra_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int tegra_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int tegra_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	if (!drm_drv_uses_atomic_modeset(dev))
-		drm_helper_disable_unused_functions(dev);
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs tegra_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= tegra_fbdev_client_unregister,
-	.restore	= tegra_fbdev_client_restore,
-	.hotplug	= tegra_fbdev_client_hotplug,
-};
-
-void tegra_fbdev_setup(struct drm_device *dev)
-{
-	struct drm_fb_helper *helper;
-	int ret;
-
-	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
-	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
-
-	helper = kzalloc(sizeof(*helper), GFP_KERNEL);
-	if (!helper)
-		return;
-	drm_fb_helper_prepare(dev, helper, 32, &tegra_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &helper->client, "fbdev",
&tegra_fbdev_client_funcs);
-	if (ret)
-		goto err_drm_client_init;
-
-	drm_client_register(&helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(helper);
-	kfree(helper);
-}
-- 
2.46.0

Store instances of drm_fb_helper and struct omap_fbdev separately.
This will allow omapdrm to use the common fbdev client, which allocates
its own instance of struct drm_fb_helper.

There is at most one instance of each per DRM device, so both can be
referenced directly from the omap and DRM device structures. A later
patchset might rework the common fbdev client to allow for storing
both, drm_fb_helper and omap_fbdev, together in the same place.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/omapdrm/omap_drv.h   |  3 ++
 drivers/gpu/drm/omapdrm/omap_fbdev.c | 42 +++++++++++++++-------------
 2 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h
b/drivers/gpu/drm/omapdrm/omap_drv.h
index 4c7217b35f6b..d903568fd8cc 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -32,6 +32,7 @@
 #define MODULE_NAME     "omapdrm"
 
 struct omap_drm_usergart;
+struct omap_fbdev;
 
 struct omap_drm_pipeline {
 	struct drm_crtc *crtc;
@@ -97,6 +98,8 @@ struct omap_drm_private {
 
 	/* memory bandwidth limit if it is needed on the platform */
 	unsigned int max_bandwidth;
+
+	struct omap_fbdev *fbdev;
 };
 
 
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c
b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 523be34682ca..044e80403c3b 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -13,6 +13,7 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_util.h>
 
 #include "omap_drv.h"
@@ -26,10 +27,8 @@ module_param_named(ywrap, ywrap_enabled, bool, 0644);
  * fbdev funcs, to implement legacy fbdev interface on top of drm driver
  */
 
-#define to_omap_fbdev(x) container_of(x, struct omap_fbdev, base)
-
 struct omap_fbdev {
-	struct drm_fb_helper base;
+	struct drm_device *dev;
 	bool ywrap_enabled;
 
 	/* for deferred dmm roll when getting called in atomic ctx */
@@ -41,7 +40,7 @@ static struct drm_fb_helper *get_fb(struct fb_info *fbi);
 static void pan_worker(struct work_struct *work)
 {
 	struct omap_fbdev *fbdev = container_of(work, struct omap_fbdev, work);
-	struct drm_fb_helper *helper = &fbdev->base;
+	struct drm_fb_helper *helper = fbdev->dev->fb_helper;
 	struct fb_info *fbi = helper->info;
 	struct drm_gem_object *bo = drm_gem_fb_get_obj(helper->fb, 0);
 	int npages;
@@ -55,24 +54,25 @@ FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS(omap_fbdev,
 				   drm_fb_helper_damage_range,
 				   drm_fb_helper_damage_area)
 
-static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
-		struct fb_info *fbi)
+static int omap_fbdev_pan_display(struct fb_var_screeninfo *var, struct fb_info
*fbi)
 {
 	struct drm_fb_helper *helper = get_fb(fbi);
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
+	struct omap_drm_private *priv;
+	struct omap_fbdev *fbdev;
 
 	if (!helper)
 		goto fallback;
 
+	priv = helper->dev->dev_private;
+	fbdev = priv->fbdev;
+
 	if (!fbdev->ywrap_enabled)
 		goto fallback;
 
-	if (drm_can_sleep()) {
+	if (drm_can_sleep())
 		pan_worker(&fbdev->work);
-	} else {
-		struct omap_drm_private *priv = helper->dev->dev_private;
+	else
 		queue_work(priv->wq, &fbdev->work);
-	}
 
 	return 0;
 
@@ -92,7 +92,6 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
 	struct drm_fb_helper *helper = info->par;
 	struct drm_framebuffer *fb = helper->fb;
 	struct drm_gem_object *bo = drm_gem_fb_get_obj(fb, 0);
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
 
 	DBG();
 
@@ -104,7 +103,7 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
 
 	drm_client_release(&helper->client);
 	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
+	kfree(helper);
 }
 
 /*
@@ -128,9 +127,9 @@ static const struct fb_ops omap_fb_ops = {
 static int omap_fbdev_create(struct drm_fb_helper *helper,
 		struct drm_fb_helper_surface_size *sizes)
 {
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
 	struct drm_device *dev = helper->dev;
 	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_fbdev *fbdev = priv->fbdev;
 	struct drm_framebuffer *fb = NULL;
 	union omap_gem_size gsize;
 	struct fb_info *fbi = NULL;
@@ -338,6 +337,7 @@ static const struct drm_client_funcs omap_fbdev_client_funcs
= {
 
 void omap_fbdev_setup(struct drm_device *dev)
 {
+	struct omap_drm_private *priv = dev->dev_private;
 	struct omap_fbdev *fbdev;
 	struct drm_fb_helper *helper;
 	int ret;
@@ -345,24 +345,28 @@ void omap_fbdev_setup(struct drm_device *dev)
 	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
 	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
 
-	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
+	fbdev = drmm_kzalloc(dev, sizeof(*fbdev), GFP_KERNEL);
 	if (!fbdev)
 		return;
-	helper = &fbdev->base;
+	fbdev->dev = dev;
+	INIT_WORK(&fbdev->work, pan_worker);
+
+	priv->fbdev = fbdev;
 
+	helper = kzalloc(sizeof(*helper), GFP_KERNEL);
+	if (!helper)
+		return;
 	drm_fb_helper_prepare(dev, helper, 32, &omap_fb_helper_funcs);
 
 	ret = drm_client_init(dev, &helper->client, "fbdev",
&omap_fbdev_client_funcs);
 	if (ret)
 		goto err_drm_client_init;
 
-	INIT_WORK(&fbdev->work, pan_worker);
-
 	drm_client_register(&helper->client);
 
 	return;
 
 err_drm_client_init:
 	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
+	kfree(helper);
 }
-- 
2.46.0

Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The omapdrm driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
Acked-by: Javier Martinez Canillas <javierm at redhat.com>
---
 drivers/gpu/drm/omapdrm/omap_drv.c   |   1 +
 drivers/gpu/drm/omapdrm/omap_fbdev.c | 131 ++++++---------------------
 drivers/gpu/drm/omapdrm/omap_fbdev.h |   8 ++
 3 files changed, 38 insertions(+), 102 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c
b/drivers/gpu/drm/omapdrm/omap_drv.c
index d3eac4817d76..10e3326e1785 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -647,6 +647,7 @@ static const struct drm_driver omap_drm_driver = {
 	.gem_prime_import = omap_gem_prime_import,
 	.dumb_create = omap_gem_dumb_create,
 	.dumb_map_offset = omap_gem_dumb_map_offset,
+	OMAP_FBDEV_DRIVER_OPS,
 	.ioctls = ioctls,
 	.num_ioctls = DRM_OMAP_NUM_IOCTLS,
 	.fops = &omapdriver_fops,
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c
b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 044e80403c3b..f4bd0c6e3f34 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -6,6 +6,7 @@
 
 #include <linux/fb.h>
 
+#include <drm/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
@@ -124,8 +125,32 @@ static const struct fb_ops omap_fb_ops = {
 	.fb_destroy	= omap_fbdev_fb_destroy,
 };
 
-static int omap_fbdev_create(struct drm_fb_helper *helper,
-		struct drm_fb_helper_surface_size *sizes)
+static int omap_fbdev_dirty(struct drm_fb_helper *helper, struct drm_clip_rect
*clip)
+{
+	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+		return 0;
+
+	if (helper->fb->funcs->dirty)
+		return helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+
+	return 0;
+}
+
+static const struct drm_fb_helper_funcs omap_fbdev_helper_funcs = {
+	.fb_dirty = omap_fbdev_dirty,
+};
+
+static struct drm_fb_helper *get_fb(struct fb_info *fbi)
+{
+	if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
+		/* these are not the fb's you're looking for */
+		return NULL;
+	}
+	return fbi->par;
+}
+
+int omap_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				  struct drm_fb_helper_surface_size *sizes)
 {
 	struct drm_device *dev = helper->dev;
 	struct omap_drm_private *priv = dev->dev_private;
@@ -207,6 +232,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
 
 	DBG("fbi=%p, dev=%p", fbi, dev);
 
+	helper->funcs = &omap_fbdev_helper_funcs;
 	helper->fb = fb;
 
 	fbi->fbops = &omap_fb_ops;
@@ -253,94 +279,10 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
 	return ret;
 }
 
-static int omap_fbdev_dirty(struct drm_fb_helper *helper, struct drm_clip_rect
*clip)
-{
-	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
-		return 0;
-
-	if (helper->fb->funcs->dirty)
-		return helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
-
-	return 0;
-}
-
-static const struct drm_fb_helper_funcs omap_fb_helper_funcs = {
-	.fb_probe = omap_fbdev_create,
-	.fb_dirty = omap_fbdev_dirty,
-};
-
-static struct drm_fb_helper *get_fb(struct fb_info *fbi)
-{
-	if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
-		/* these are not the fb's you're looking for */
-		return NULL;
-	}
-	return fbi->par;
-}
-
-/*
- * struct drm_client
- */
-
-static void omap_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int omap_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int omap_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs omap_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= omap_fbdev_client_unregister,
-	.restore	= omap_fbdev_client_restore,
-	.hotplug	= omap_fbdev_client_hotplug,
-};
-
 void omap_fbdev_setup(struct drm_device *dev)
 {
 	struct omap_drm_private *priv = dev->dev_private;
 	struct omap_fbdev *fbdev;
-	struct drm_fb_helper *helper;
-	int ret;
 
 	drm_WARN(dev, !dev->registered, "Device has not been
registered.\n");
 	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
@@ -353,20 +295,5 @@ void omap_fbdev_setup(struct drm_device *dev)
 
 	priv->fbdev = fbdev;
 
-	helper = kzalloc(sizeof(*helper), GFP_KERNEL);
-	if (!helper)
-		return;
-	drm_fb_helper_prepare(dev, helper, 32, &omap_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &helper->client, "fbdev",
&omap_fbdev_client_funcs);
-	if (ret)
-		goto err_drm_client_init;
-
-	drm_client_register(&helper->client);
-
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(helper);
-	kfree(helper);
+	drm_client_setup(dev, NULL);
 }
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.h
b/drivers/gpu/drm/omapdrm/omap_fbdev.h
index 74c691a8d45f..283e35b42ada 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.h
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.h
@@ -10,10 +10,18 @@
 #define __OMAPDRM_FBDEV_H__
 
 struct drm_device;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
+int omap_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				  struct drm_fb_helper_surface_size *sizes);
+#define OMAP_FBDEV_DRIVER_OPS \
+	.fbdev_probe = omap_fbdev_driver_fbdev_probe
 void omap_fbdev_setup(struct drm_device *dev);
 #else
+#define OMAP_FBDEV_DRIVER_OPS \
+	.fbdev_probe = NULL
 static inline void omap_fbdev_setup(struct drm_device *dev)
 {
 }
-- 
2.46.0