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drm/msm: a6x: Rework qmp_get() error handling

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Fix the following for qmp_get() errors:

1. Correctly handle probe defer for A6x GPUs
2. Ignore other errors because those are okay when GPU ACD is
not required. They are checked again during gpu acd probe.

Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Maya Matuszczyk <maccraft123mc@gmail.com>
Tested-by: Anthony Ruhier <aruhier@mailbox.org>
Patchwork: https://patchwork.freedesktop.org/patch/649346/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Akhil P Oommen 2025-04-19 20:21:32 +05:30 committed by Rob Clark
parent 5f02f5e78e
commit 8e98a81da2
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
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@ -2043,9 +2043,10 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
goto detach_cxpd;
}
/* Other errors are handled during GPU ACD probe */
gmu->qmp = qmp_get(gmu->dev);
if (IS_ERR(gmu->qmp) && adreno_is_a7xx(adreno_gpu)) {
ret = PTR_ERR(gmu->qmp);
if (PTR_ERR_OR_ZERO(gmu->qmp) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
goto detach_gxpd;
}