Re: [PATCH v11 3/9] dt-bindings: power: supply: max17042: split on 2 files

[Krzysztof Kozlowski]

On Mon, Dec 09, 2024 at 02:26:27PM +0300, Dzmitry Sankouski wrote:
> Move max17042 common binding part to separate file, to
> reuse it for MFDs with platform driver version.
> 
> Signed-off-by: Dzmitry Sankouski <dsankouski@xxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/power/supply/maxim,max17042-base.yaml | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml      | 49 +------------------------------------------------
>  MAINTAINERS                                                             |  2 +-
>  3 files changed, 68 insertions(+), 49 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042-base.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042-base.yaml
> new file mode 100644
> index 000000000000..1653f8ae11f7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042-base.yaml
> @@ -0,0 +1,66 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/maxim,max17042-base.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim 17042 fuel gauge series
> +
> +maintainers:
> +  - Sebastian Reichel <sre@xxxxxxxxxx>
> +
> +allOf:
> +  - $ref: power-supply.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - maxim,max17042
> +      - maxim,max17047
> +      - maxim,max17050
> +      - maxim,max17055
> +      - maxim,max77705-battery
> +      - maxim,max77849-battery

Shared schemas define only shared properties, not compatibles. But the
main problem is you did not answer nor resolve my previous concerns -
either this device has separate address and probably is a separate
device on the same or different bus.

Plus this was not tested and does not really work, but anyway let's
focus on my previous concerns first.

> +
> +  interrupts:
> +    maxItems: 1
> +    description: |
> +      The ALRT pin, an open-drain interrupt.

...

> +
> +additionalProperties: false
> +
> diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> index 14242de7fc08..b7fd714cc72e 100644
> --- a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> +++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
> @@ -10,60 +10,13 @@ maintainers:
>    - Sebastian Reichel <sre@xxxxxxxxxx>
>  
>  allOf:
> -  - $ref: power-supply.yaml#
> +  - $ref: maxim,max17042-base.yaml#
>  
>  properties:
> -  compatible:
> -    enum:
> -      - maxim,max17042
> -      - maxim,max17047
> -      - maxim,max17050
> -      - maxim,max17055
> -      - maxim,max77705-battery
> -      - maxim,max77849-battery
> -

This does not make sense. Final device schema must come with compatibles.

Best regards,
Krzysztof