linux-kernel - [PATCH] arm64: dts: qcom: sdm845: Limit ipa iommu streams

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Message-Id: <20201123052305.157686-1-bjorn.andersson@linaro.org>
Date:   Sun, 22 Nov 2020 23:23:05 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Alex Elder <elder@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: sdm845: Limit ipa iommu streams

The Android and Windows firmware does not accept the use of 3 as a mask
to cover the IPA streams. But with 0x721 being related to WiFi and 0x723
being unsed the mapping can be reduced to just cover 0x720 and 0x722,
which is accepted.

Fixes: e9e89c45bfeb ("arm64: dts: sdm845: add IPA iommus property")
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 0da27b065761..a6147bd54cdf 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2136,7 +2136,8 @@ ufs_mem_phy_lanes: lanes@...7400 {
 		ipa: ipa@...0000 {
 			compatible = "qcom,sdm845-ipa";
 
-			iommus = <&apps_smmu 0x720 0x3>;
+			iommus = <&apps_smmu 0x720 0x0>,
+				 <&apps_smmu 0x722 0x0>;
 			reg = <0 0x1e40000 0 0x7000>,
 			      <0 0x1e47000 0 0x2000>,
 			      <0 0x1e04000 0 0x2c000>;
-- 
2.29.2