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arm64: dts: qcom: sc7280: Mark PCIe controller as cache coherent

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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@vger.kernel.org
Fixes: 92e0ee9f83 ("arm64: dts: qcom: sc7280: Add PCIe and PHY related node")
Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1677584952-17496-1-git-send-email-quic_krichai@quicinc.com
This commit is contained in:
Krishna chaitanya chundru 2023-02-28 17:19:12 +05:30 committed by Bjorn Andersson
parent eaba416688
commit 8a63441e83
1 changed files with 2 additions and 0 deletions
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arch/arm64/boot/dts/qcom/sc7280.dtsi
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@ -2131,6 +2131,8 @@ pcie1: pci@1c08000 {
pinctrl-names = "default";
pinctrl-0 = <&pcie1_clkreq_n>;
dma-coherent;
iommus = <&apps_smmu 0x1c80 0x1>;
iommu-map = <0x0 &apps_smmu 0x1c80 0x1>,