From: Alex Elder <elder@xxxxxxxxxx> [ Upstream commit 8f34831d3659d38f480fddccb76d84c6c3e0ac0b ] Recently we learned that Android and Windows firmware don't seem to like using 3 as an iommu mask value for IPA. A simple fix was to specify exactly the streams needed explicitly, rather than implying a range with the mask. Make the same change for the SC7180 platform. See also: https://lore.kernel.org/linux-arm-msm/20201123052305.157686-1-bjorn.andersson@xxxxxxxxxx/ Fixes: d82fade846aa8 ("arm64: dts: qcom: sc7180: add IPA information") Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Signed-off-by: Alex Elder <elder@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201126015457.6557-2-elder@xxxxxxxxxx Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index a02776ce77a10..c71f3afc1cc9f 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -1394,7 +1394,8 @@ ipa: ipa@1e40000 { compatible = "qcom,sc7180-ipa"; - iommus = <&apps_smmu 0x440 0x3>; + iommus = <&apps_smmu 0x440 0x0>, + <&apps_smmu 0x442 0x0>; reg = <0 0x1e40000 0 0x7000>, <0 0x1e47000 0 0x2000>, <0 0x1e04000 0 0x2c000>; -- 2.27.0
