drm/msm/dpu: filter out too wide modes if no 3dmux is present

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On chipsets such as QCS615, there is no 3dmux present. In such
a case, a layer exceeding the max_mixer_width cannot be split,
hence cannot be supported.

Filter out the modes which exceed the max_mixer_width when there
is no 3dmux present. Also, add a check in the dpu_crtc_atomic_check()
to return failure for such modes.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Xiangxu Yin <quic_xiangxuy@quicinc.com> # QCS615
Patchwork: https://patchwork.freedesktop.org/patch/627974/
Link: https://lore.kernel.org/r/20241209-no_3dmux-v3-1-48aaa555b0d3@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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Abhinav Kumar 2024-12-09 13:18:36 -08:00 • committed by Dmitry Baryshkov

parent dc7b16a4f0

commit dbc7bb1a93

1 changed files with 13 additions and 0 deletions

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drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c

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