linux-kernel - Re: [PATCH 1/2] dt-bindings: pwm: sophgo: add bindings for sg2042

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Message-ID: <20240906024435-GYA153340@gentoo>
Date: Fri, 6 Sep 2024 02:44:35 +0000
From: Yixun Lan <dlan@...too.org>
To: Chen Wang <unicornxw@...il.com>
Cc: ukleinek@...nel.org, 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
Subject: Re: [PATCH 1/2] dt-bindings: pwm: sophgo: add bindings for sg2042

On 20:10 Thu 05 Sep     , Chen Wang wrote:
> From: Chen Wang <unicorn_wang@...look.com>
> 
> Add binding document for sophgo,sg2042-pwm.
> 
> Signed-off-by: Chen Wang <unicorn_wang@...look.com>
> ---
>  .../bindings/pwm/sophgo,sg2042-pwm.yaml       | 52 +++++++++++++++++++
>  1 file changed, 52 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..10212694dd41
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/sophgo,sg2042-pwm.yaml
> @@ -0,0 +1,52 @@
> +# 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: |
you can drop | here
> +  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
> +
> +  "#pwm-cells":
..
> +    # See pwm.yaml in this directory for a description of the cells format.
I think you can drop this comment, since no useful information added
also it's already refered to standard pwm.yaml
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
also "#pwm-cells"?
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pwm@...06000 {
> +        compatible = "sophgo,sg2042-pwm";
> +        reg = <0x7f006000 0x1000>;
> +        #pwm-cells = <2>;
> +        clocks = <&clock 67>;
> +        clock-names = "apb";
> +    };
> -- 
> 2.34.1
> 

-- 
Yixun Lan (dlan)
Gentoo Linux Developer
GPG Key ID AABEFD55