From: Daniel Vetter daniel.vetter@ffwll.ch
[ Upstream commit 934c5b32a5e43d8de2ab4f1566f91d7c3bf8cb64 ]
The correct way for legacy drivers to update properties that need to do a full modeset, is to do a full modeset.
Note that we don't need to call the drm_mode_config_internal helper because we're not changing any of the refcounted paramters.
v2: Fixup error handling (Ville). Since the old code didn't bother I decided to just delete it instead of adding even more code for just error handling.
Cc: Ville Syrjälä ville.syrjala@linux.intel.com Reviewed-by: Alex Deucher alexander.deucher@amd.com (v1) Cc: Sean Paul seanpaul@chromium.org Signed-off-by: Daniel Vetter daniel.vetter@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-2-daniel.... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c index 434d1e29f279..cd37d00e9723 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c @@ -750,7 +750,9 @@ static int nv17_tv_set_property(struct drm_encoder *encoder, /* Disable the crtc to ensure a full modeset is * performed whenever it's turned on again. */ if (crtc) - drm_crtc_force_disable(crtc); + drm_crtc_helper_set_mode(crtc, &crtc->mode, + crtc->x, crtc->y, + crtc->primary->fb); }
return 0;