linux-kernel - Re: [PATCH v2 1/4] dt-bindings: pwm: allwinner: add h616 pwm compatible

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Message-ID: <10771871.nUPlyArG6x@jernej-laptop>
Date: Sun, 21 Dec 2025 19:52:50 +0100
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: Uwe Kleine-König <u.kleine-koenig@...libre.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
 Samuel Holland <samuel@...lland.org>, Philipp Zabel <p.zabel@...gutronix.de>,
 Richard Genoud <richard.genoud@...tlin.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
 linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Richard Genoud <richard.genoud@...tlin.com>,
 Krzysztof Kozlowski <krzk@...nel.org>
Subject:
 Re: [PATCH v2 1/4] dt-bindings: pwm: allwinner: add h616 pwm compatible

Dne sreda, 17. december 2025 ob 09:25:01 Srednjeevropski standardni čas je Richard Genoud napisal(a):
> Allwinner H616 PWM block is quite different from the A10 or H6, but at
> the end, it uses the same clocks as the H6; so the sun4i pwm binding can
> be used.
> It has 6 channels than can generate PWM waveforms or clocks if bypass is
> enabled.
> 
> Suggested-by: Krzysztof Kozlowski <krzk@...nel.org>
> Signed-off-by: Richard Genoud <richard.genoud@...tlin.com>
> ---
>  .../bindings/pwm/allwinner,sun4i-a10-pwm.yaml | 19 ++++++++++++++++++-
>  1 file changed, 18 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> index 1197858e431f..4f58110ec98f 100644
> --- a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> +++ b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> @@ -14,6 +14,9 @@ properties:
>    "#pwm-cells":
>      const: 3
>  
> +  "#clock-cells":
> +    const: 1

Why #clock-cells? I don't see any reason to add it.

Other properties seem fine.

Best regards,
Jernej

> +
>    compatible:
>      oneOf:
>        - const: allwinner,sun4i-a10-pwm
> @@ -36,6 +39,7 @@ properties:
>            - const: allwinner,sun50i-h5-pwm
>            - const: allwinner,sun5i-a13-pwm
>        - const: allwinner,sun50i-h6-pwm
> +      - const: allwinner,sun50i-h616-pwm
>  
>    reg:
>      maxItems: 1
> @@ -62,7 +66,9 @@ allOf:
>        properties:
>          compatible:
>            contains:
> -            const: allwinner,sun50i-h6-pwm
> +            enum:
> +              - allwinner,sun50i-h6-pwm
> +              - allwinner,sun50i-h616-pwm
>  
>      then:
>        properties:
> @@ -83,6 +89,17 @@ allOf:
>          clocks:
>            maxItems: 1
>  
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            contains:
> +              const: allwinner,sun50i-h616-pwm
> +
> +    then:
> +      properties:
> +        "#clock-cells": false
> +
>  required:
>    - compatible
>    - reg
>