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drm/msm/a6xx: Handle GMU prepare-slumber hfi failure

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When prepare-slumber hfi fails, we should follow a6xx_gmu_force_off()
sequence.

Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/498401/
Link: https://lore.kernel.org/r/20220819015030.v5.7.I54815c7c36b80d4725cd054e536365250454452f@changeid
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Akhil P Oommen 2022-08-19 01:52:15 +05:30 committed by Rob Clark
parent 3a9dd708b9
commit d6463fd4e9
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
View file

@ -1086,7 +1086,11 @@ static void a6xx_gmu_shutdown(struct a6xx_gmu *gmu)
a6xx_bus_clear_pending_transactions(adreno_gpu);
/* tell the GMU we want to slumber */
a6xx_gmu_notify_slumber(gmu);
ret = a6xx_gmu_notify_slumber(gmu);
if (ret) {
a6xx_gmu_force_off(gmu);
return;
}
ret = gmu_poll_timeout(gmu,
REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_STATUS, val,