[PATCH V1] arm64:dts:qcom:sc7280: mark memory of PCIe as cache coherent

From: Krishna chaitanya chundru
Date: Mon Feb 27 2023 - 04:36:55 EST


Mark the PCIe node as dma-coherent as the devices on PCIe bus are
cache coherent.

Signed-off-by: Krishna chaitanya chundru <quic_krichai@xxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index bdcb749..8f4ab6b 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -2131,6 +2131,8 @@
pinctrl-names = "default";
pinctrl-0 = <&pcie1_clkreq_n>;

+ dma-coherent;
+
iommus = <&apps_smmu 0x1c80 0x1>;

iommu-map = <0x0 &apps_smmu 0x1c80 0x1>,
--
2.7.4