linux-kernel - [PATCH v4 3/3] arm64: dts: qcom: sa8775p: Mark PCIe EP controller as cache coherent

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Date:   Tue, 21 Nov 2023 20:08:13 +0530
From:   Mrinmay Sarkar <quic_msarkar@...cinc.com>
To:     agross@...nel.org, andersson@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        konrad.dybcio@...aro.org, mani@...nel.org, robh+dt@...nel.org
Cc:     quic_shazhuss@...cinc.com, quic_nitegupt@...cinc.com,
        quic_ramkri@...cinc.com, quic_nayiluri@...cinc.com,
        dmitry.baryshkov@...aro.org, robh@...nel.org,
        quic_krichai@...cinc.com, quic_vbadigan@...cinc.com,
        quic_parass@...cinc.com, quic_schintav@...cinc.com,
        quic_shijjose@...cinc.com,
        Mrinmay Sarkar <quic_msarkar@...cinc.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH v4 3/3] arm64: dts: qcom: sa8775p: Mark PCIe EP controller as cache coherent

The PCIe EP controller on SA8775P supports cache coherency, hence add
the "dma-coherent" property to mark it as such.

Signed-off-by: Mrinmay Sarkar <quic_msarkar@...cinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 arch/arm64/boot/dts/qcom/sa8775p.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 7eab458..ab01efe 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -3620,6 +3620,7 @@
 				<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_PCIE_0 0>;
 		interconnect-names = "pcie-mem", "cpu-pcie";
 
+		dma-coherent;
 		iommus = <&pcie_smmu 0x0000 0x7f>;
 		resets = <&gcc GCC_PCIE_0_BCR>;
 		reset-names = "core";
-- 
2.7.4