linux-kernel - [PATCH v3 4/4] arm64: dts/sdm845: Enable FW implemented safe sequence handler on MTP

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Date:   Wed, 12 Jun 2019 12:45:54 +0530
From:   Vivek Gautam <vivek.gautam@...eaurora.org>
To:     agross@...nel.org, robh+dt@...nel.org, will.deacon@....com,
        robin.murphy@....com, joro@...tes.org, bjorn.andersson@...aro.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        iommu@...ts.linux-foundation.org
Cc:     linux-kernel@...r.kernel.org, david.brown@...aro.org,
        Vivek Gautam <vivek.gautam@...eaurora.org>
Subject: [PATCH v3 4/4] arm64: dts/sdm845: Enable FW implemented safe sequence handler on MTP

Indicate on MTP SDM845 that firmware implements handler to
TLB invalidate erratum SCM call where SAFE sequence is toggled
to achieve optimum performance on real-time clients, such as
display and camera.

Signed-off-by: Vivek Gautam <vivek.gautam@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 78ec373a2b18..6a73d9744a71 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2368,6 +2368,7 @@
 			compatible = "qcom,sdm845-smmu-500", "arm,mmu-500";
 			reg = <0 0x15000000 0 0x80000>;
 			#iommu-cells = <2>;
+			qcom,smmu-500-fw-impl-safe-errata;
 			#global-interrupts = <1>;
 			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>,
 				     <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
-- 
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