drm/msm/dpu: fail dpu_plane_atomic_check() based on mdp clk limits
authorAbhinav Kumar <quic_abhinavk@quicinc.com>
Mon, 11 Sep 2023 22:16:26 +0000 (15:16 -0700)
committerAbhinav Kumar <quic_abhinavk@quicinc.com>
Thu, 5 Oct 2023 17:18:10 +0000 (10:18 -0700)
commit10f20628c9b8e924b8046e63b36b2cea4d2c85e4
treef025c780ba5ecaf715897572f89d6a4d45ed83c5
parenteba8c99a0fc45da1c8d5b5f5bd1dc2e79229a767
drm/msm/dpu: fail dpu_plane_atomic_check() based on mdp clk limits

Currently, dpu_plane_atomic_check() does not check whether the
plane can process the image without exceeding the per chipset
limits for MDP clock. This leads to underflow issues because the
SSPP is not able to complete the processing for the data rate of
the display.

Fail the dpu_plane_atomic_check() if the SSPP cannot process the
image without exceeding the MDP clock limits.

changes in v2:
- use crtc_state's adjusted_mode instead of mode

Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/556819/
Link: https://lore.kernel.org/r/20230911221627.9569-1-quic_abhinavk@quicinc.com
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c