On 1/17/2023 6:16 PM, Dmitry Baryshkov wrote:
On Wed, 18 Jan 2023 at 04:14, Jessica Zhang <quic_jessz...@quicinc.com> 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.

Hi Dmitry,

Acked -- will change the commit message in a v2.

Thanks,

Jessica Zhang



Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/23
Signed-off-by: Jessica Zhang <quic_jessz...@quicinc.com>
---
  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

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