Hi Stefan, Some comments below
> > diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c b/drivers/gpu/drm/fsl- > dcu/fsl_dcu_drm_crtc.c > index d30b61e..62eb284 100644 > --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c > @@ -27,6 +27,9 @@ static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc > *crtc, { > struct drm_pending_vblank_event *event = crtc->state->event; > > + regmap_write(fsl_dev->regmap, > + DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG); fsl_dev is not declared. I had added these two lines when testing the patches. struct drm_device *dev = crtc->dev; struct fsl_dcu_drm_device *fsl_dev = dev->dev_private; > + > if (event) { > crtc->state->event = NULL; > Best Regards, Meng