linux-kernel - Re: [PATCH 1/2] ASoC: dt-bindings: fsl,audmix: Add support for i.MX952 platform

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Message-ID: <aWpSiZuAWQkrbfAj@lizhi-Precision-Tower-5810>
Date: Fri, 16 Jan 2026 10:00:25 -0500
From: Frank Li <Frank.li@....com>
To: Shengjiu Wang <shengjiu.wang@....com>
Cc: shengjiu.wang@...il.com, Xiubo.Lee@...il.com, festevam@...il.com,
	nicoleotsuka@...il.com, lgirdwood@...il.com, broonie@...nel.org,
	perex@...ex.cz, tiwai@...e.com, linux-sound@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
	devicetree@...r.kernel.org, shawnguo@...nel.org,
	s.hauer@...gutronix.de, kernel@...gutronix.de, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] ASoC: dt-bindings: fsl,audmix: Add support for
 i.MX952 platform

On Fri, Jan 16, 2026 at 06:16:47PM +0800, Shengjiu Wang wrote:
> The specific feature for AUDMIX on i.MX952 is that it can be bypassed,
> so add fsl,amix-bypass property for this feature, besides this there is

Need judgement why need 'fsl,amix-bypass', like difference board design
will use bypass or not.

Frank

> no power domain defined on i.MX952, so make power-domains to be
> dedicated to i.MX8QM.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
> ---
>  .../devicetree/bindings/sound/fsl,audmix.yaml | 35 +++++++++++++++++--
>  1 file changed, 33 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/sound/fsl,audmix.yaml b/Documentation/devicetree/bindings/sound/fsl,audmix.yaml
> index 3ad197b3c82c..50fb08460b4f 100644
> --- a/Documentation/devicetree/bindings/sound/fsl,audmix.yaml
> +++ b/Documentation/devicetree/bindings/sound/fsl,audmix.yaml
> @@ -34,7 +34,9 @@ description: |
>
>  properties:
>    compatible:
> -    const: fsl,imx8qm-audmix
> +    enum:
> +      - fsl,imx8qm-audmix
> +      - fsl,imx952-audmix
>
>    reg:
>      maxItems: 1
> @@ -75,12 +77,41 @@ properties:
>          unevaluatedProperties: false
>          description: Output port to SAI RX
>
> +  fsl,amix-bypass:
> +    type: boolean
> +    description:
> +      The audmix module is bypassed from hardware.
> +
>  required:
>    - compatible
>    - reg
>    - clocks
>    - clock-names
> -  - power-domains
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx8qm-audmix
> +    then:
> +      required:
> +        - power-domains
> +      not:
> +        required:
> +          - fsl,amix-bypass
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - fsl,imx952-audmix
> +    then:
> +      not:
> +        required:
> +          - power-domains
>
>  unevaluatedProperties: false
>
> --
> 2.34.1
>