drm/msm/dpu: add support for MDP_TOP blackhole

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On sm8450 a register block was removed from MDP TOP. Accessing it during
snapshotting results in NoC errors / immediate reboot. Skip accessing
these registers during snapshot.

Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/514239/
Link: https://lore.kernel.org/r/20221207012231.112059-10-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

...

This commit is contained in:

Dmitry Baryshkov 2022-12-07 03:22:29 +02:00

parent dbe2422b20

commit 43e3293fc6

3 changed files with 15 additions and 2 deletions

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3

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h

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3

drivers/gpu/drm/msm/disp/dpu1/dpu_hwio.h

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11

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

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