Re: [PATCH 2/2] arm64: dts: qcom: sc8280xp: fix UFS DMA coherency

[Konrad Dybcio]

On 05/12/2022 11:08, Johan Hovold wrote:
> The SC8280XP UFS controllers are cache coherent and must be marked as
> such in the devicetree to avoid potential data corruption.
>
> Fixes: 152d1faf1e2f ("arm64: dts: qcom: add SC8280XP platform")
> Cc: stable@xxxxxxxxxxxxxxx      # 6.0
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Konrad
>   arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> index c4947c563099..23d1f51527aa 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> @@ -1430,6 +1430,7 @@ ufs_mem_hc: ufs@1d84000 {
>   			required-opps = <&rpmhpd_opp_nom>;
>   
>   			iommus = <&apps_smmu 0xe0 0x0>;
> +			dma-coherent;
>   
>   			clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
>   				 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
> @@ -1491,6 +1492,7 @@ ufs_card_hc: ufs@1da4000 {
>   			power-domains = <&gcc UFS_CARD_GDSC>;
>   
>   			iommus = <&apps_smmu 0x4a0 0x0>;
> +			dma-coherent;
>   
>   			clocks = <&gcc GCC_UFS_CARD_AXI_CLK>,
>   				 <&gcc GCC_AGGRE_UFS_CARD_AXI_CLK>,