From eaeb9010bb4bcdc20e58254fa42f3fe730a7f908 Mon Sep 17 00:00:00 2001 From: Karol Herbst Date: Sat, 14 Jul 2018 12:52:09 +0200 Subject: drm/nouveau/debugfs: Wake up GPU before doing any reclocking Fixes various reclocking related issues on prime systems. Signed-off-by: Karol Herbst Signed-off-by: Martin Peres Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c index 963a4dba8213..9109b69cd052 100644 --- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c +++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c @@ -160,7 +160,11 @@ nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf, args.ustate = value; } + ret = pm_runtime_get_sync(drm->dev); + if (IS_ERR_VALUE(ret) && ret != -EACCES) + return ret; ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args)); + pm_runtime_put_autosuspend(drm->dev); if (ret < 0) return ret; -- cgit v1.2.3