On Tue 24 Nov 13:18 CST 2020, Alex Elder wrote:
> On 11/22/20 11:23 PM, Bjorn Andersson wrote:
> > The Android and Windows firmware does not accept the use of 3 as a mask
> > to cover the IPA streams. But with 0x721 being related to WiFi and 0x723
> > being unsed the mapping can be reduced to just cover 0x720 and 0x722,
> > which is accepted.
>
> Do you want to update sc7180.dtsi too?
>
We probably want that too, but currently we don't have any sc7180
devices that shows this problem...
> I tried your change on my SDM845 machine and observed no
> problem. I tried the comparable change in "sc7180.dtsi"
> (using 440 and 442) and that seemed to work as before also.
>
> If you think that's sufficient, you can add:
>
> Tested-by: Alex Elder <elder@xxxxxxxxxx>
>
> Otherwise:
>
> Acked-by: Alex Elder <elder@xxxxxxxxxx>
>
Thank you,
Bjorn
>
> > Fixes: e9e89c45bfeb ("arm64: dts: sdm845: add IPA iommus property")
> > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/qcom/sdm845.dtsi | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > index 0da27b065761..a6147bd54cdf 100644
> > --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> > @@ -2136,7 +2136,8 @@ ufs_mem_phy_lanes: lanes@1d87400 {
> > ipa: ipa@1e40000 {
> > compatible = "qcom,sdm845-ipa";
> > - iommus = <&apps_smmu 0x720 0x3>;
> > + iommus = <&apps_smmu 0x720 0x0>,
> > + <&apps_smmu 0x722 0x0>;
> > reg = <0 0x1e40000 0 0x7000>,
> > <0 0x1e47000 0 0x2000>,
> > <0 0x1e04000 0 0x2c000>;
> >
>
