linux-kernel - Re: [PATCH v4 3/4] dt-bindings: sram: sunxi-sram: Add regulators child

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Date:   Fri, 25 Nov 2022 09:10:51 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Samuel Holland <samuel@...lland.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Andrew Lunn <andrew@...n.ch>, Heiko Stuebner <heiko@...ech.de>,
        Maxime Ripard <mripard@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH v4 3/4] dt-bindings: sram: sunxi-sram: Add regulators
 child

On 25/11/2022 05:01, Samuel Holland wrote:
> Some sunxi SoCs have in-package regulators controlled by a register in
> the system control MMIO block. Allow a child node for this regulator
> device in addition to SRAM child nodes.
> 
> Signed-off-by: Samuel Holland <samuel@...lland.org>
> ---
> 
> Changes in v4:
>  - Remove unevaluatedProperties from regulators schema reference
> 
> Changes in v3:
>  - Require the regulators node to have a unit address
>  - Reference the regulator schema from the SRAM controller schema
>  - Move the system LDOs example to the SRAM controller schema
>  - Reorder the patches so the example passes validation
> 
> Changes in v2:
>  - New patch for v2
> 
>  .../allwinner,sun4i-a10-system-control.yaml   | 28 +++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
> index 98a7dc7f467d..c487ac9521e9 100644
> --- a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
> +++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
> @@ -56,6 +56,9 @@ properties:
>    ranges: true
>  
>  patternProperties:
> +  "^regulators@[0-9a-f]+$":
> +    $ref: /schemas/regulator/allwinner,sun20i-d1-system-ldos.yaml#
> +
>    "^sram@[a-z0-9]+":
>      type: object

You could add allOf:if:not:...then: clause making regulators as false
for all variants which do not support it. This would make it more specific.

Anyway:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>


Best regards,
Krzysztof