From: Daniel Vetter <daniel.vetter@xxxxxxxx> [ 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@xxxxxxxxxxxxxxx> Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx> (v1) Cc: Sean Paul <seanpaul@xxxxxxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-2-daniel.vetter@xxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 6a4ca139cf5d..8fd8124d72ba 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; -- 2.19.1
