Like on earlier flagship Qualcomm SoCs, the SMMU is dma-coherent.
Mark it as such.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Konrad Dybcio <[email protected]>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi 
b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index d696ec6c6850..868d48b85555 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -3934,6 +3934,7 @@ apps_smmu: iommu@15000000 {
                                     <GIC_SPI 694 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 695 IRQ_TYPE_LEVEL_HIGH>,
                                     <GIC_SPI 696 IRQ_TYPE_LEVEL_HIGH>;
+                       dma-coherent;
                };
 
                intc: interrupt-controller@17100000 {

-- 
2.43.1


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