diff options
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 36c6b36ad4ff..b981ff25a983 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -283,6 +283,13 @@ static int qcom_smmu_cfg_probe(struct arm_smmu_device *smmu) int i; /* + * MSM8998 LPASS SMMU reports 13 context banks, but accessing + * the last context bank crashes the system. + */ + if (of_device_is_compatible(smmu->dev->of_node, "qcom,msm8998-smmu-v2") && smmu->num_context_banks == 13) + smmu->num_context_banks = 12; + + /* * Some platforms support more than the Arm SMMU architected maximum of * 128 stream matching groups. For unknown reasons, the additional * groups don't exhibit the same behavior as the architected registers, |