linux-kernel - Re: [PATCH v3 3/4] dt-bindings: crypto: fsl,sec-v4.0: Add power domains for iMX8QM and iMX8QXP

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Message-ID: <20250528215209.GA862463-robh@kernel.org>
Date: Wed, 28 May 2025 16:52:09 -0500
From: Rob Herring <robh@...nel.org>
To: John Ernberg <john.ernberg@...ia.se>
Cc: Horia Geantă <horia.geanta@....com>,
	Pankaj Gupta <pankaj.gupta@....com>,
	Gaurav Jain <gaurav.jain@....com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S . Miller" <davem@...emloft.net>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>, Frank Li <Frank.li@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Thomas Richard <thomas.richard@...tlin.com>,
	"linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 3/4] dt-bindings: crypto: fsl,sec-v4.0: Add power
 domains for iMX8QM and iMX8QXP

On Wed, May 28, 2025 at 02:43:07PM +0000, John Ernberg wrote:
> NXP SoCs like the iMX8QM, iMX8QXP or iMX8DXP use power domains for
> resource management.
> 
> Allow specifying them for such SoCs.
> 
> Signed-off-by: John Ernberg <john.ernberg@...ia.se>
> 
> ---
> 
> v3:
>  - Fix warnings discovered by Rob Herring's bot
>  - Declare the compatibles correctly (Krzysztof Kozlowski)
> 
> v2:
>  - Adjust commit message (Frank Li)
>  - Only allow power-domains when compatible with imx8qm (Frank Li)
> ---
>  .../bindings/crypto/fsl,sec-v4.0.yaml         | 45 ++++++++++++++++++-
>  1 file changed, 44 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
> index 75afa441e019..a4ada0e2d97c 100644
> --- a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
> +++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0.yaml
> @@ -46,6 +46,7 @@ properties:
>        - items:
>            - enum:
>                - fsl,imx6ul-caam
> +              - fsl,imx8qm-caam
>                - fsl,sec-v5.0
>            - const: fsl,sec-v4.0
>        - const: fsl,sec-v4.0
> @@ -77,6 +78,9 @@ properties:
>    interrupts:
>      maxItems: 1
>  
> +  power-domains:
> +    maxItems: 1
> +
>    fsl,sec-era:
>      description: Defines the 'ERA' of the SEC device.
>      $ref: /schemas/types.yaml#/definitions/uint32
> @@ -106,7 +110,9 @@ patternProperties:
>                - const: fsl,sec-v5.0-job-ring
>                - const: fsl,sec-v4.0-job-ring
>            - items:
> -              - const: fsl,sec-v5.0-job-ring
> +              - enum:
> +                - fsl,imx8qm-job-ring
> +                - fsl,sec-v5.0-job-ring
>                - const: fsl,sec-v4.0-job-ring
>            - const: fsl,sec-v4.0-job-ring
>  
> @@ -116,6 +122,9 @@ patternProperties:
>        interrupts:
>          maxItems: 1
>  
> +      power-domains:
> +        maxItems: 1
> +
>        fsl,liodn:
>          description:
>            Specifies the LIODN to be used in conjunction with the ppid-to-liodn
> @@ -212,6 +221,40 @@ required:
>    - reg
>    - ranges
>  
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: fsl,imx8qm-caam
> +    then:
> +      required:
> +        - power-domains
> +    else:
> +      properties:
> +        power-domains: false
> +
> +  - if:

This 'if' belongs under the '^jr@[0-9a-f]+$' subschema which will then 
remote a level here.

> +      patternProperties:
> +        '^jr@[0-9a-f]+$':
> +          type: object
> +          properties:
> +            compatible:
> +              contains:
> +                const: fsl,imx8qm-job-ring
> +    then:
> +      patternProperties:
> +        '^jr@[0-9a-f]+$':
> +          type: object
> +          required:
> +            - power-domains
> +    else:
> +      patternProperties:
> +        '^jr@[0-9a-f]+$':
> +          type: object
> +          properties:
> +            power-domains: false
> +
>  additionalProperties: false
>  
>  examples:
> -- 
> 2.49.0