From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mikko Perttunen Subject: [PATCH 2/3] drm/nouveau/tegra: Don't leave GPU in reset Date: Fri, 9 Jun 2017 15:25:40 +0300 Message-ID: <20170609122541.31118-2-mperttunen@nvidia.com> References: <20170609122541.31118-1-mperttunen@nvidia.com> Return-path: In-Reply-To: <20170609122541.31118-1-mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, kholtta-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Mikko Perttunen List-Id: linux-tegra@vger.kernel.org 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 --- 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