drm/msm/dpu: Drop sneaky dev_pm_opp_set_rate(0)

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dev_pm_opp_set_rate(0) removes the vote specified in required-opps but
does not actually park the clock, making it run without the necessary
power backing. Prevent that from happening when
_dpu_core_perf_get_core_clk_rate() returns 0.

Fixes: 25fdd5933e ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/742779/
Link: https://lore.kernel.org/r/20260728-topic-dpu_power-v1-1-e7783b859a70@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

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Konrad Dybcio 2026-07-28 15:20:45 +02:00 • committed by Dmitry Baryshkov

parent c16ba6ba3d

commit 811c38907e

1 changed files with 4 additions and 0 deletions

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

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