[PATCH v9 2/5] arm64: dts: qcom: sa8775p: add GDSP fastrpc-compute-cb nodes

[Ekansh Gupta]

On 7/16/2025 6:58 PM, Ling Xu wrote:
> Add GDSP0 and GDSP1 fastrpc compute-cb nodes for sa8775p SoC.
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
> Reviewed-by: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
> Signed-off-by: Ling Xu <quic_lxu5 at quicinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 57 +++++++++++++++++++++++++++
>  1 file changed, 57 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index fed34717460f..5ebc058931ad 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -6080,6 +6080,34 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "gpdsp0";
>  				qcom,remote-pid = <17>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "gdsp0";
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb at 1 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <1>;
> +						iommus = <&apps_smmu 0x38a1 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb at 2 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <2>;
> +						iommus = <&apps_smmu 0x38a2 0x0>;
> +						dma-coherent;
> +					};
> +					compute-cb at 3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x38a3 0x0>;
> +						dma-coherent;
> +					};
> +				};
>  			};
>  		};
>  
> @@ -6123,6 +6151,35 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "gpdsp1";
>  				qcom,remote-pid = <18>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "gdsp1";
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb at 1 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <1>;
> +						iommus = <&apps_smmu 0x38c1 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb at 2 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <2>;
> +						iommus = <&apps_smmu 0x38c2 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb at 3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x38c3 0x0>;
> +						dma-coherent;
> +					};
> +				};
>  			};

You might have to rebase this change onto lemans.dtsi

>  		};
>