On Wed 25 Nov 19:54 CST 2020, Alex Elder wrote:
> Recently we learned that Android and Windows firmware don't seem to
> like using 3 as an iommu mask value for IPA. A simple fix was to
> specify exactly the streams needed explicitly, rather than implying
> a range with the mask. Make the same change for the SC7180 platform.
>
> See also:
>
> https://lore.kernel.org/linux-arm-msm/20201123052305.157686-1-bjorn.anders...@linaro.org/
>
Reviewed-by: Bjorn Andersson <bjorn.anders...@linaro.org>
> Fixes: d82fade846aa8 ("arm64: dts: qcom: sc7180: add IPA information")
> Signed-off-by: Alex Elder <el...@linaro.org>
> ---
> arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index c0efb101b0d61..eb66aadf360d7 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1396,7 +1396,8 @@
> ipa: ipa@1e40000 {
> compatible = "qcom,sc7180-ipa";
>
> - iommus = <&apps_smmu 0x440 0x3>;
> + iommus = <&apps_smmu 0x440 0x0>,
> + <&apps_smmu 0x442 0x0>;
> reg = <0 0x1e40000 0 0x7000>,
> <0 0x1e47000 0 0x2000>,
> <0 0x1e04000 0 0x2c000>;
> --
> 2.20.1
>
