Hi Jason, On Mon, Jul 10, 2023 at 12:27 AM Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx> wrote: > > OVL layer should not be enabled before crtc is enabled. > The plane_state of drm_atomic_state is not sync to > the plane_state stored in mtk_crtc during crtc enabling, > so just set all planes to disabled. > Please add the "Fixes" tag before your S-o-b. Regards, Fei > Signed-off-by: Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx> > --- > drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > index d40142842f85..51d10e65004e 100644 > --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c > @@ -410,6 +410,9 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc) > unsigned int local_layer; > > plane_state = to_mtk_plane_state(plane->state); > + > + /* should not enable layer before crtc enabled */ > + plane_state->pending.enable = false; > comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer); > if (comp) > mtk_ddp_comp_layer_config(comp, local_layer, > -- > 2.18.0 > >
