search for: err_clamp

...au/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -51,10 +51,12 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) reset_control_assert(tdev->rst); udelay(10); - ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); - if (ret) - goto err_clamp; - udelay(10); + if (!tdev->pdev->dev.pm_domain) { + ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); + if (ret) + goto err_clamp; + udelay(10); + } reset_control_deassert(tdev->rst); udelay(10); -- 2.13.0

.../drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c > @@ -51,10 +51,12 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) > reset_control_assert(tdev->rst); > udelay(10); > > - ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); > - if (ret) > - goto err_clamp; > - udelay(10); > + if (!tdev->pdev->dev.pm_domain) { > + ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); > + if (ret) > + goto err_clamp; > + udelay(10); > + } > > reset_control_deassert(tdev->rst); > udelay(10); > -------------- n...

...;nouveau_drm.h" > @@ -61,6 +63,9 @@ static int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu) > reset_control_deassert(gpu->rst); > udelay(10); > > + tegra_mc_flush(gpu->mc, gpu->swgroup, false); > + udelay(10); > + > return 0; > > err_clamp: > @@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) > { > int err; > > + tegra_mc_flush(gpu->mc, gpu->swgroup, true); > + udelay(10); > + > + err = tegra_powergate_gpu_set_clamping(true); > + if (err) > + return er...

...atic int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu) > >> reset_control_deassert(gpu->rst); > >> udelay(10); > >>+ tegra_mc_flush(gpu->mc, gpu->swgroup, false); > >>+ udelay(10); > >>+ > >> return 0; > >> err_clamp: > >>@@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) > >> { > >> int err; > >>+ tegra_mc_flush(gpu->mc, gpu->swgroup, true); > >>+ udelay(10); > >>+ > >>+ err = tegra_powergate_gpu_se...

...rm_gpu *gpu) > >>>> reset_control_deassert(gpu->rst); > >>>> udelay(10); > >>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, false); > >>>>+ udelay(10); > >>>>+ > >>>> return 0; > >>>> err_clamp: > >>>>@@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) > >>>> { > >>>> int err; > >>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, true); > >>>>+ udelay(10); > >>>&...

...ol_deassert(gpu->rst); > >>>>>> udelay(10); > >>>>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, false); > >>>>>>+ udelay(10); > >>>>>>+ > >>>>>> return 0; > >>>>>> err_clamp: > >>>>>>@@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) > >>>>>> { > >>>>>> int err; > >>>>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, true); > >>>>...

...; + if (err) + goto err_clk; + err = clk_prepare_enable(gpu->clk_pwr); + if (err) + goto err_clk_pwr; + clk_set_rate(gpu->clk_pwr, 204000000); + udelay(10); + + reset_control_assert(gpu->rst); + udelay(10); + + err = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); + if (err) + goto err_clamp; + udelay(10); + + reset_control_deassert(gpu->rst); + udelay(10); + + return 0; + +err_clamp: + clk_disable_unprepare(gpu->clk_pwr); +err_clk_pwr: + clk_disable_unprepare(gpu->clk); +err_clk: + regulator_disable(gpu->vdd); +err_power: + return err; +} + +static int nouveau_platform_pow...

...#include <soc/tegra/pmc.h> #include "nouveau_drm.h" @@ -61,6 +63,9 @@ static int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu) reset_control_deassert(gpu->rst); udelay(10); + tegra_mc_flush(gpu->mc, gpu->swgroup, false); + udelay(10); + return 0; err_clamp: @@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) { int err; + tegra_mc_flush(gpu->mc, gpu->swgroup, true); + udelay(10); + + err = tegra_powergate_gpu_set_clamping(true); + if (err) + return err; + udelay(10); + reset_control_assert(gpu->...

This series adds support for probing platform devices on Nouveau, as well as the DT bindings for GK20A. It doesn't enable the GPU yet on Tegra boards since a few extra things need to be supported before that. This version is mostly identical to v2 but fixes an important issue: the drvdata must be set to the drm_device for sysfs to work, so the platform device structure now includes the

...@ static int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu) >> reset_control_deassert(gpu->rst); >> udelay(10); >> >> + tegra_mc_flush(gpu->mc, gpu->swgroup, false); >> + udelay(10); >> + >> return 0; >> >> err_clamp: >> @@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) >> { >> int err; >> >> + tegra_mc_flush(gpu->mc, gpu->swgroup, true); >> + udelay(10); >> + >> + err = tegra_powergate_gpu_set_clamping(true)...

This series adds support for probing platform devices on Nouveau, as well as the DT bindings for GK20A. It doesn't enable the GPU yet on Tegra boards since a few extra things need to be supported before that. Thanks to the input received for v1, this version is more self-contained and shares less stuff between nouveau_drm and nouveau_platform. The major change is that nouveau_platform is now

...lk); if (ret) goto err_clk; + if (tdev->clk_ref) { + ret = clk_prepare_enable(tdev->clk_ref); + if (ret) + goto err_clk_ref; + } ret = clk_prepare_enable(tdev->clk_pwr); if (ret) goto err_clk_pwr; @@ -57,6 +62,9 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) err_clamp: clk_disable_unprepare(tdev->clk_pwr); err_clk_pwr: + if (tdev->clk_ref) + clk_disable_unprepare(tdev->clk_ref); +err_clk_ref: clk_disable_unprepare(tdev->clk); err_clk: regulator_disable(tdev->vdd); @@ -71,6 +79,8 @@ nvkm_device_tegra_power_down(struct nvkm_device_tegra *td...

...e(gpu->clk_pwr); > + if (err) > + goto err_clk_pwr; > + clk_set_rate(gpu->clk_pwr, 204000000); > + udelay(10); > + > + reset_control_assert(gpu->rst); > + udelay(10); > + > + err = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D); > + if (err) > + goto err_clamp; > + udelay(10); > + > + reset_control_deassert(gpu->rst); > + udelay(10); > + > + return 0; > + > +err_clamp: > + clk_disable_unprepare(gpu->clk_pwr); > +err_clk_pwr: > + clk_disable_unprepare(gpu->clk); > +err_clk: > + regulator_disable(gpu->vdd)...

...wer_up(struct nouveau_platform_gpu *gpu) >>>> reset_control_deassert(gpu->rst); >>>> udelay(10); >>>> + tegra_mc_flush(gpu->mc, gpu->swgroup, false); >>>> + udelay(10); >>>> + >>>> return 0; >>>> err_clamp: >>>> @@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) >>>> { >>>> int err; >>>> + tegra_mc_flush(gpu->mc, gpu->swgroup, true); >>>> + udelay(10); >>>> + >>>> +...

...;>> reset_control_deassert(gpu->rst); >>>>>> udelay(10); >>>>>> + tegra_mc_flush(gpu->mc, gpu->swgroup, false); >>>>>> + udelay(10); >>>>>> + >>>>>> return 0; >>>>>> err_clamp: >>>>>> @@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) >>>>>> { >>>>>> int err; >>>>>> + tegra_mc_flush(gpu->mc, gpu->swgroup, true); >>>>>> + udelay(10)...

...> >>>>>> udelay(10); > > >>>>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, false); > > >>>>>>+ udelay(10); > > >>>>>>+ > > >>>>>> return 0; > > >>>>>> err_clamp: > > >>>>>>@@ -77,6 +82,14 @@ static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu) > > >>>>>> { > > >>>>>> int err; > > >>>>>>+ tegra_mc_flush(gpu->mc, gpu->swgroup, true); &...

This patch series is the final (?) step towards the initial support of GK20A, allowing it to be probed and used (currently at a very slow speed, and for offscreen rendering only) on the Jetson TK1 and Venice 2 boards. The main piece if the first patch which adds platform devices probing support to Nouveau. There are probably lots of things that need to be discussed about it, e.g.: * The way the

...km/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index 6474bd2..bde8ab2 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -64,8 +64,7 @@ nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev) err_clamp: clk_disable_unprepare(tdev->clk_pwr); err_clk_pwr: - if (tdev->clk_ref) - clk_disable_unprepare(tdev->clk_ref); + clk_disable_unprepare(tdev->clk_ref); err_clk_ref: clk_disable_unprepare(tdev->clk); err_clk: @@ -84,8 +83,7 @@ nvkm_device_tegra_power_down(struct nvkm_device_t...

Hi, This series includes some pieces of fixes to complete the GK20A power on/off sequences and add the suspend/resume support. The patches 1/11 - 4/11 are based on the linux-next-20141219. The patches 5/11 - 11/11 are based on the branch "linux-3.19" of Ben Skeggs's tree (http://cgit.freedesktop.org/~darktama/nouveau). Thanks, Vince Vince Hsu (4): (linux-next-20141219) ARM:

From: Thierry Reding <treding at nvidia.com> Hi Ben, here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the