[PATCH 6.1 210/224] arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

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From: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>

commit 8a63441e83724fee1ef3fd37b237d40d90780766 upstream.

If the controller is not marked as cache coherent, then kernel will
try to ensure coherency during dma-ops and that may cause data corruption.
So, mark the PCIe node as dma-coherent as the devices on PCIe bus are
cache coherent.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 92e0ee9f83b3 ("arm64: dts: qcom: sc7280: Add PCIe and PHY related node")
Signed-off-by: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1677584952-17496-1-git-send-email-quic_krichai@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
 arch/arm64/boot/dts/qcom/sc7280.dtsi |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -2077,6 +2077,8 @@
 			pinctrl-names = "default";
 			pinctrl-0 = <&pcie1_clkreq_n>;
+			dma-coherent;
 			iommus = <&apps_smmu 0x1c80 0x1>;
 			iommu-map = <0x0 &apps_smmu 0x1c80 0x1>,

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