Re: [PATCH 1/5] dt-bindings: dsp: fix power domain count

[Frank Li <Frank.li@nxp.com>]

On Wed, Sep 18, 2024 at 02:21:13PM -0400, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
>
> Per the current binding, QM/QXP DSPs are supposed
> to have 4 power domains, while the rest just 1.
> For QM/QXP, the 4 power domains are: DSP, DSP_RAM,
> MU13A, MU13B.
>
> First off, drop MU13A from the count. This is attached
> to the platform device of lsio_mu13. This decreases the
> count to 3.
>
> Secondly, drop DSP and DSP_RAM from the count for QXP.
> These are attached to the platform devices of the lpcgs
> (used as clock providers for the DSP).
>
> With this in mind, the number of required power domains for
> QXP is 1 (MU13B), while for QM it's 3 (MU13B, DSP, DSP_RAM).
>
> Additionally, two extra power domains may be required in the
> case of QM/QXP DSPs. These are IRQSTR_DSP and MU2A. For the nodes
> using the "-hifi4" compatibles these PDs are optional, while for
> nodes using the "-dsp" compatibles these are mandatory.
>
> These changes reflect all of this information.

Can you wrap message to 75 char?

>
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
> ---
>  .../devicetree/bindings/dsp/fsl,dsp.yaml      | 62 +++++++++++++++----
>  1 file changed, 49 insertions(+), 13 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
> index 9af40da5688e..e2f016af1048 100644
> --- a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
> +++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
> @@ -51,8 +51,6 @@ properties:
>      description:
>        List of phandle and PM domain specifier as documented in
>        Documentation/devicetree/bindings/power/power_domain.txt
> -    minItems: 1
> -    maxItems: 4
>
>    mboxes:
>      description:
> @@ -97,16 +95,55 @@ allOf:
>        properties:
>          compatible:
>            contains:
> -            enum:
> -              - fsl,imx8qxp-dsp
> -              - fsl,imx8qm-dsp
> -              - fsl,imx8qxp-hifi4
> -              - fsl,imx8qm-hifi4
> +            const: fsl,imx8qxp-hifi4
>      then:
>        properties:
>          power-domains:
> -          minItems: 4
> -    else:
> +          maxItems: 3
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: fsl,imx8qxp-dsp
> +    then:
> +      properties:
> +        power-domains:
> +          minItems: 3
> +          maxItems: 3

I remember only need maxItems, if minItems == maxItems.

Frank
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: fsl,imx8qm-dsp
> +    then:
> +      properties:
> +        power-domains:
> +          minItems: 5
> +          maxItems: 5
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: fsl,imx8qm-hifi4
> +    then:
> +      properties:
> +        power-domains:
> +          minItems: 3
> +          maxItems: 5
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx8mp-dsp
> +              - fsl,imx8mp-hifi4
> +              - fsl,imx8ulp-dsp
> +              - fsl,imx8ulp-hifi4
> +    then:
>        properties:
>          power-domains:
>            maxItems: 1
> @@ -157,10 +194,9 @@ examples:
>                   <&adma_lpcg IMX_ADMA_LPCG_OCRAM_IPG_CLK>,
>                   <&adma_lpcg IMX_ADMA_LPCG_DSP_CORE_CLK>;
>          clock-names = "ipg", "ocram", "core";
> -        power-domains = <&pd IMX_SC_R_MU_13A>,
> -                        <&pd IMX_SC_R_MU_13B>,
> -                        <&pd IMX_SC_R_DSP>,
> -                        <&pd IMX_SC_R_DSP_RAM>;
> +        power-domains = <&pd IMX_SC_R_MU_13B>,
> +                        <&pd IMX_SC_R_IRQSTR_DSP>,
> +                        <&pd IMX_SC_R_MU_2A>;
>          mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1";
>          mboxes = <&lsio_mu13 2 0>, <&lsio_mu13 2 1>, <&lsio_mu13 3 0>, <&lsio_mu13 3 1>;
>          memory-region = <&dsp_reserved>;
> --
> 2.34.1
>