Qcom's implementation of arm,mmu-500 works well with current arm-smmu driver implementation. Adding a soc specific compatible along with arm,mmu-500 makes the bindings future safe. Signed-off-by: Vivek Gautam <vivek.gautam@xxxxxxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Cc: Will Deacon <will.deacon@xxxxxxx> --- Hi Joerg, I am picking this out separately from the sdm845 smmu support series [1], so that this can go through iommu tree. The dt patch from the series [1] can be taken through arm-soc tree. Hi Will, As asked [2], here's the resend version of dt binding patch for sdm845. Kindly ack this so that Joerg can pull this in. Thanks Vivek [1] https://patchwork.kernel.org/cover/10636359/ [2] https://patchwork.kernel.org/patch/10636363/ Documentation/devicetree/bindings/iommu/arm,smmu.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.txt b/Documentation/devicetree/bindings/iommu/arm,smmu.txt index a6504b37cc21..3133f3ba7567 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.txt +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.txt @@ -27,6 +27,10 @@ conditions. "qcom,msm8996-smmu-v2", "qcom,smmu-v2", "qcom,sdm845-smmu-v2", "qcom,smmu-v2". + Qcom SoCs implementing "arm,mmu-500" must also include, + as below, SoC-specific compatibles: + "qcom,sdm845-smmu-500", "arm,mmu-500" + - reg : Base address and size of the SMMU. - #global-interrupts : The number of global interrupts exposed by the -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
