diff options
| author | Zhenhua Huang <quic_zhenhuah@quicinc.com> | 2024-07-02 17:01:10 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-07-02 18:03:15 +0100 |
| commit | 9796cf9b3eb9a0b9502dfe0b3acf63610090ef44 (patch) | |
| tree | d355a7925d77cb772fb99e4bc9797bd00ed640a3 | |
| parent | d525b0af0c3b8275e6f83fa0c0640338ed90661a (diff) | |
iommu/arm-smmu-qcom: record reason for deferring probe
To avoid deferring probe smmu driver silently, record reason for it.
It can be checked through ../debugfs/devices_deferred as well:
/sys/kernel/debug# cat devices_deferred
15000000.iommu arm-smmu: qcom_scm not ready
Signed-off-by: Zhenhua Huang <quic_zhenhuah@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1719910870-25079-1-git-send-email-quic_zhenhuah@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 25f034677f56..971c6a2e592b 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -469,7 +469,8 @@ static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu, /* Check to make sure qcom_scm has finished probing */ if (!qcom_scm_is_available()) - return ERR_PTR(-EPROBE_DEFER); + return ERR_PTR(dev_err_probe(smmu->dev, -EPROBE_DEFER, + "qcom_scm not ready\n")); qsmmu = devm_krealloc(smmu->dev, smmu, sizeof(*qsmmu), GFP_KERNEL); if (!qsmmu) |