Virtualization - Feb 2023 - [PATCH 17/17] drm/cirrus: Use VGA macro constants to unblank

Set the VGA bit for unblanking with macro constants instead of magic
values. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/tiny/cirrus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index ad67fb895213..594bc472862f 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -509,7 +509,7 @@ static void cirrus_crtc_helper_atomic_enable(struct drm_crtc
*crtc,
 	cirrus_mode_set(cirrus, &crtc_state->mode);
 
 	/* Unblank (needed on S3 resume, vgabios doesn't do it then) */
-	outb(0x20, 0x3c0);
+	outb(VGA_AR_ENABLE_DISPLAY, VGA_ATT_W);
 
 	drm_dev_exit(idx);
 }
-- 
2.39.1

On Wed, Feb 15, 2023 at 05:15:17PM +0100, Thomas Zimmermann
wrote:
> Set the VGA bit for unblanking with macro constants instead of magic
> values. No functional changes.
blank/unblank should work simliar to bochs (see commit 250e743915d4),
that is maybe a nice thing to add of you modernize the driver anyway.

take care,
  Gerd