diff options
| -rw-r--r-- | arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi b/arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi index ecfff13f9355..da28e56bc2df 100644 --- a/arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi +++ b/arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi @@ -176,4 +176,16 @@ */ iommus = <&mmss_smmu 42>; }; + + iommu_coherent_test_device { + compatible = "iommu-debug-test"; + /* + * 43 shouldn't be used by anyone on the mmss_smmu. We just + * need _something_ here to get this node recognized by the + * SMMU driver. Our test uses ATOS, which doesn't use SIDs + * anyways, so using a dummy value is ok. + */ + iommus = <&mmss_smmu 43>; + dma-coherent; + }; }; |