[PATCH 5.10 213/717] arm64: dts: qcom: sc7180: limit IPA iommu streams

[Greg Kroah-Hartman]

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