linux-kernel - Re: [PATCH v2 1/3] dt-bindings: arm: google: add gs101-raven and generic gs101-pixel

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Message-ID: <d0c1511f-b052-4690-aefb-3fb41e1e5875@kernel.org>
Date: Sun, 22 Dec 2024 12:38:30 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: André Draszik <andre.draszik@...aro.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Peter Griffin
 <peter.griffin@...aro.org>, Tudor Ambarus <tudor.ambarus@...aro.org>,
 Alim Akhtar <alim.akhtar@...sung.com>
Cc: Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v2 1/3] dt-bindings: arm: google: add gs101-raven and
 generic gs101-pixel

On 20/12/2024 12:27, André Draszik wrote:
> Raven is Google's code name for Pixel 6 Pro. Since there are
> differences compared to Pixel 6 (Oriole), we need to add a separate
> compatible for it.
> 
> We also want to support a generic DT, which can work on any type of

There are no such generic DT devices upstream, so we cannot add bindings
for them.

> gs101-based Pixel device, e.g. Pixel 6, or Pixel 6 Pro, or Pixel 6a (as
> a future addition). Such a DT will have certain nodes disabled / not
> added. To facilitate such a generic gs101-based Pixel device, also add
> a more generic gs101-pixel compatible. We can not just use the existing
> google,gs101 for that, as it refers to the SoC, not a board.
> 
> Signed-off-by: André Draszik <andre.draszik@...aro.org>
> ---
>  Documentation/devicetree/bindings/arm/google.yaml | 18 ++++++++++++++----
>  1 file changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/google.yaml b/Documentation/devicetree/bindings/arm/google.yaml
> index e20b5c9b16bc..a8faf2256242 100644
> --- a/Documentation/devicetree/bindings/arm/google.yaml
> +++ b/Documentation/devicetree/bindings/arm/google.yaml
> @@ -34,11 +34,21 @@ properties:
>      const: '/'
>    compatible:
>      oneOf:
> -      - description: Google Pixel 6 / Oriole
> +      - description: Google GS101 Pixel devices, as generic Pixel, or Pixel 6
> +          (Oriole), or 6 Pro (Raven)
> +        minItems: 2
> +        maxItems: 3
>          items:
> -          - enum:
> -              - google,gs101-oriole
> -          - const: google,gs101
> +          enum:
> +            - google,gs101-oriole
> +            - google,gs101-raven
> +            - google,gs101-pixel
> +            - google,gs101

SoC cannot be a board in the same time.

> +        allOf:
> +          - contains:
> +              const: google,gs101-pixel
> +          - contains:
> +              const: google,gs101

This should be fixed list.


Best regards,
Krzysztof