Re: [PATCH v4 4/5] drm/msm/dpu: move writeback's atomic_check to dpu_writeback.c

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On 2/8/2024 7:20 AM, Dmitry Baryshkov wrote:
dpu_encoder_phys_wb is the only user of encoder's atomic_check callback.
Move corresponding checks to drm_writeback_connector's implementation
and drop the dpu_encoder_phys_wb_atomic_check() function.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
  .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c    | 54 -------------------
  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c            |  9 ++--
  drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c      | 61 +++++++++++++++++++++-
  drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.h      |  3 +-
  4 files changed, 68 insertions(+), 59 deletions(-)


<Snip>

+
+	crtc = conn_state->crtc;
+	if (!crtc)
+		return 0;
+

This should fix the crash and rest of the change LGTM

Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>


Please give us a couple of days to re-test this and give our Tested-by as we plan to rebase CDM over DP on top of this and post V2.




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