Re: [PATCH v2 1/3] arm64: dts: qcom: sdm660: set cdsp compute-cbs' regs properly

[Ekansh Gupta]

On 20-04-2026 15:12, Nickolay Goppen wrote:
> Changing FastRPC compute-cbs' reg values to matching iommu streams
> solves SMMU translation errors when trying to use FastRPC on CDSP
> so change FastRPC compute-cbs' reg values that way
> 
> Fixes: c0c32a9e3493 ("arm64: dts: qcom: sdm630/660: Add CDSP-related nodes")
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> Signed-off-by: Nickolay Goppen <setotau@xxxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/qcom/sdm660.dtsi | 36 ++++++++++++++++++------------------
>  1 file changed, 18 insertions(+), 18 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm660.dtsi b/arch/arm64/boot/dts/qcom/sdm660.dtsi
> index 3fd6dd82a992..0fca9662c64a 100644
> --- a/arch/arm64/boot/dts/qcom/sdm660.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm660.dtsi
> @@ -350,57 +350,57 @@ fastrpc {
>  				#address-cells = <1>;
>  				#size-cells = <0>;
>  
> -				compute-cb@5 {
> +				compute-cb@3 {
>  					compatible = "qcom,fastrpc-compute-cb";
> -					reg = <5>;
> +					reg = <3>;
>  					iommus = <&cdsp_smmu 3>;
>  				};
>  
> -				compute-cb@6 {
> +				compute-cb@4 {
>  					compatible = "qcom,fastrpc-compute-cb";
> -					reg = <6>;
> +					reg = <4>;
>  					iommus = <&cdsp_smmu 4>;
>  				};
Reviewed-by: Ekansh Gupta <ekansh.gupta@xxxxxxxxxxxxxxxx>