linux-kernel - Re: [PATCH v6 1/3] dt-bindings: pwm: sophgo: add PWM controller for SG2042

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Message-ID: <dvjnhptep4fa3iqxzsau5fdp7qrno4nhnpdecvvyb55h6sxjpl@ohnvvbldwtpj>
Date: Tue, 21 Jan 2025 12:16:23 +0100
From: Uwe Kleine-König <ukleinek@...nel.org>
To: Chen Wang <unicornxw@...il.com>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	unicorn_wang@...look.com, inochiama@...look.com, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org, linux-riscv@...ts.infradead.org, 
	chao.wei@...hgo.com, haijiao.liu@...hgo.com, xiaoguang.xing@...hgo.com, 
	chunzhi.lin@...hgo.com, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v6 1/3] dt-bindings: pwm: sophgo: add PWM controller for
 SG2042

Hello,

On Wed, Dec 04, 2024 at 11:16:22AM +0800, Chen Wang wrote:
> From: Chen Wang <unicorn_wang@...look.com>
> 
> Sophgo SG2042 contains a PWM controller, which has 4 channels and
> can generate PWM waveforms output.
> 
> Signed-off-by: Chen Wang <unicorn_wang@...look.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Nitpick: Put your S-o-b last.

> ---
>  .../bindings/pwm/sophgo,sg2042-pwm.yaml       | 58 +++++++++++++++++++
>  1 file changed, 58 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml b/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
> new file mode 100644
> index 000000000000..5dea41fa4c44
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pwm/sophgo,sg2042-pwm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo SG2042 PWM controller
> +
> +maintainers:
> +  - Chen Wang <unicorn_wang@...look.com>
> +
> +description:
> +  This controller contains 4 channels which can generate PWM waveforms.
> +
> +allOf:
> +  - $ref: pwm.yaml#
> +
> +properties:
> +  compatible:
> +    const: sophgo,sg2042-pwm
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: apb
> +
> +  resets:
> +    maxItems: 1
> +
> +  "#pwm-cells":
> +    const: 2

Please use 3 here.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +
> +unevaluatedProperties: false

Best regards
Uwe

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