Define iommus property for QUP0 and QUP1 with the proper SID and mask. Below SMMU global faults are seen without this during boot and when using i2c touchscreen. QUP0: arm-smmu 15000000.iommu: Unexpected global fault, this could be serious arm-smmu 15000000.iommu: GFSR 0x00000002, GFSYNR0 0x00000002, GFSYNR1 0x00000043, GFSYNR2 0x00000000 QUP1: arm-smmu 15000000.iommu: Unexpected global fault, this could be serious arm-smmu 15000000.iommu: GFSR 0x00000002, GFSYNR0 0x00000002, GFSYNR1 0x000004c3, GFSYNR2 0x00000000 Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx> --- arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index 8011c5fe2a31..01e431f49c18 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -338,6 +338,7 @@ qupv3_id_0: geniqup@8c0000 { #address-cells = <2>; #size-cells = <2>; ranges; + iommus = <&apps_smmu 0x43 0x0>; status = "disabled"; i2c0: i2c@880000 { @@ -546,6 +547,7 @@ qupv3_id_1: geniqup@ac0000 { #address-cells = <2>; #size-cells = <2>; ranges; + iommus = <&apps_smmu 0x4c3 0x0>; status = "disabled"; i2c6: i2c@a80000 { -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation