Re: [PATCH 3/6] arm64: dts: layerscape: add '#power-control-cells' for rcpm

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On Fri, Jun 21, 2024 at 10:52 AM Frank Li <Frank.Li@xxxxxxx> wrote:
>
> Add '#power-control-cells' for rcpm: power-control node to fix below

You mean #power-domain-cells?

> warning.
>
> power-controller@1ee2140: '#power-domain-cells' is a required property
>         from schema $id: http://devicetree.org/schemas/power/power-domain.yaml#
>
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> ---
>  arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi | 1 +
>  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 1 +
>  arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 1 +
>  arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 1 +
>  arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 1 +
>  arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 1 +
>  6 files changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
> index 1331858add942..1b6ab9550cce9 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1012a.dtsi
> @@ -560,6 +560,7 @@ pcie1: pcie@3400000 {
>                 rcpm: power-controller@1ee2140 {
>                         compatible = "fsl,ls1012a-rcpm", "fsl,qoriq-rcpm-2.1+";
>                         reg = <0x0 0x1ee2140 0x0 0x4>;
> +                       #power-domain-cells = <0>;

The thing is this h/w is not controlling power domains nor using the binding.

So I think the fix here is either rename the node name or drop this
schema check ($nodename). We really only do the latter if we want to
only reference the power-domain.yaml schema from all specific power
domain controller schemas. That's really only done if there's more
than just #foo-cells defined by the schema which is not the case here.
So we should probably rename the node to 'rcpm' or something. Seems
like a step back, but there's really nothing generic to use here.

Rob





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