Re: [PATCH 9/9] arm64: dts: qcom: sc7280: Update Q6V5 MSS node

[Sibi Sankar <sibis@xxxxxxxxxxxxxx>]

On 2021-06-29 00:35, Matthias Kaehlcke wrote:
> On Fri, Jun 25, 2021 at 01:17:38AM +0530, Sibi Sankar wrote:
> > Update MSS node to support MSA based modem boot on SC7280 SoCs.
> >
> > Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
> > ---
> >  arch/arm64/boot/dts/qcom/sc7280-idp.dts |  7 +++++++
> >  arch/arm64/boot/dts/qcom/sc7280.dtsi    | 19 ++++++++++++++++---
> >  2 files changed, 23 insertions(+), 3 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts 
> > b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> > index 191e8a92d153..d66e3ca42ad5 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> > +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> > @@ -343,3 +343,10 @@
> >  		bias-pull-up;
> >  	};
> >  };
> > +
> > +&remoteproc_mpss {
> > +	status = "okay";
> > +	compatible = "qcom,sc7280-mss-pil";
> > +	iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
> > +	memory-region = <&mba_mem &mpss_mem>;
> > +};
> > diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi 
> > b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > index 56ea172f641f..6d3687744440 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> > @@ -586,7 +586,8 @@
> >
> >  		remoteproc_mpss: remoteproc@4080000 {
> >  			compatible = "qcom,sc7280-mpss-pas";
> > -			reg = <0 0x04080000 0 0x10000>;
> > +			reg = <0 0x04080000 0 0x10000>, <0 0x04180000 0 0x48>;
> > +			reg-names = "qdsp6", "rmb";
>
> Binding needs update?
>
> Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml:
>
>   reg:
>       maxItems: 1
>
> >  			interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
> >  					      <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
> > @@ -597,8 +598,11 @@
> >  			interrupt-names = "wdog", "fatal", "ready", "handover",
> >  					  "stop-ack", "shutdown-ack";
> >
> > -			clocks = <&rpmhcc RPMH_CXO_CLK>;
> > -			clock-names = "xo";
> > +			clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
> > +				 <&gcc GCC_MSS_OFFLINE_AXI_CLK>,
> > +				 <&gcc GCC_MSS_SNOC_AXI_CLK>,
> > +				 <&rpmhcc RPMH_CXO_CLK>;
> > +			clock-names = "iface", "offline", "snoc_axi", "xo";
>
> Binding needs update?
>
> Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml:
>
>   clocks:
>     items:
>       - description: XO clock
>   clock-names:
>     items:
>       - const: xo

qcom,sc7280-mpss-pas compatible requires
just the xo clock and one reg space whereas
the qcom,sc7280-mss-pil compatible requires
the additional clks and reg spaces. We just
overload properties where re-use is possible
across boards. Hence it would be wrong to
list those clks/reg spaces as requirements
for the pas compatible.


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