linux-kernel - [PATCH net-next v2 1/1] arm64: dts: sdm845: add IPA iommus property

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Date:   Mon,  4 May 2020 13:13:50 -0500
From:   Alex Elder <elder@...aro.org>
To:     bjorn.andersson@...aro.org, agross@...nel.org
Cc:     davem@...emloft.net, evgreen@...omium.org.net,
        subashab@...eaurora.org, cpratapa@...eaurora.org,
        robh+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [PATCH net-next v2 1/1] arm64: dts: sdm845: add IPA iommus property

Add an "iommus" property to the IPA node in "sdm845.dtsi".  It is
required because there are two regions of memory the IPA accesses
through an SMMU.  The next few patches define and map those regions.

Signed-off-by: Alex Elder <elder@...aro.org>
---

NOTE: This was posted in error previously as part of another series,
      which has since been superseded (and no longer includes it).
      https://lore.kernel.org/netdev/20200504175859.22606-1-elder@linaro.org/

 arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 71dfdfcf2033..7cce6f1b7c9e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -1762,6 +1762,8 @@
 
 		ipa: ipa@...0000 {
 			compatible = "qcom,sdm845-ipa";
+
+			iommus = <&apps_smmu 0x720 0x3>;
 			reg = <0 0x1e40000 0 0x7000>,
 			      <0 0x1e47000 0 0x2000>,
 			      <0 0x1e04000 0 0x2c000>;
-- 
2.20.1