On Wed, 18 Jan 2023 at 04:14, Jessica Zhang <quic_jesszhan@xxxxxxxxxxx> wrote: > > Add a !drm_atomic_crtc_needs_modeset() check to > _dpu_crtc_setup_cp_blocks() so that CTM is reapplied after a > suspend/resume. .. or if the LM/DSPP blocks were reallocated by resource allocation during the modeset. > > Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/23 > Signed-off-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > index 13ce321283ff..aa120a230222 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > @@ -748,7 +748,7 @@ static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc) > int i; > > > - if (!state->color_mgmt_changed) > + if (!state->color_mgmt_changed && !drm_atomic_crtc_needs_modeset(state)) > return; > > for (i = 0; i < cstate->num_mixers; i++) { > -- > 2.39.0 > -- With best wishes Dmitry