linux-kernel - [PATCHv4 6/6] arm64: dts: qcom: sdm845-cheza: Add iommus property

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Message-Id: <38c607841e81664a2db69a27260cd7dfbd653458.1587407458.git.saiprakash.ranjan@codeaurora.org>
Date:   Tue, 21 Apr 2020 00:03:54 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Sibi Sankar <sibis@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Jordan Crouse <jcrouse@...eaurora.org>,
        Rob Clark <robdclark@...il.com>
Cc:     Stephen Boyd <swboyd@...omium.org>,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Matthias Kaehlcke <mka@...omium.org>,
        Evan Green <evgreen@...omium.org>,
        Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
Subject: [PATCHv4 6/6] arm64: dts: qcom: sdm845-cheza: Add iommus property

From: Sibi Sankar <sibis@...eaurora.org>

Add iommus property to remoteproc modem node.

Following SMMU global faults are seen without it.

arm-smmu 15000000.iommu: Unexpected global fault, this could be serious
arm-smmu 15000000.iommu: GFSR 0x80000002, GFSYNR0 0x00000000,
                         GFSYNR1 0x00000781, GFSYNR2 0x00000000

arm-smmu 15000000.iommu: Unexpected global fault, this could be serious
arm-smmu 15000000.iommu: GFSR 0x80000002, GFSYNR0 0x00000000,
                         GFSYNR1 0x00000461, GFSYNR2 0x00000000

Signed-off-by: Sibi Sankar <sibis@...eaurora.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
index 9070be43a309..07081da2c83e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi
@@ -631,6 +631,11 @@ ap_ts_i2c: &i2c14 {
 	status = "okay";
 };
 
+&mss_pil {
+	iommus = <&apps_smmu 0x780 0x1>,
+		 <&apps_smmu 0x724 0x3>;
+};
+
 &pm8998_pwrkey {
 	status = "disabled";
 };
-- 
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