[PATCH 2/3] drm/nouveau/tegra: Don't leave GPU in reset
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From: Mikko Perttunen <hidden>
Date: 2017-06-09 12:25:40
Also in:
dri-devel, nouveau
Subsystem:
drm driver for nvidia geforce/quadro gpus, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Lyude Paul, Danilo Krummrich, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
On Tegra186 systems with certain firmware revisions, leaving the GPU in reset can cause a hang. To prevent this, don't leave the GPU in reset. Signed-off-by: Mikko Perttunen <redacted> --- drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
index 3d42cdbbe9c0..189ed80e21ff 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c@@ -82,9 +82,6 @@ nvkm_device_tegra_power_down(struct nvkm_device_tegra *tdev) { int ret; - reset_control_assert(tdev->rst); - udelay(10); - clk_disable_unprepare(tdev->clk_pwr); if (tdev->clk_ref) clk_disable_unprepare(tdev->clk_ref);
--
2.13.0