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Message-ID: <0036b3f3-fdf8-4635-18e9-461b93a87f19@linaro.org>
Date:   Tue, 31 May 2022 22:38:31 +0200
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Subject: Re: [PATCH 11/14] dt-bindings: leds: mt6370: Add Mediatek mt6370
 indicator documentation
Content-Language: en-US
To:     ChiaEn Wu <peterwu.pub@gmail.com>, lee.jones@linaro.org,
        daniel.thompson@linaro.org, jingoohan1@gmail.com, pavel@ucw.cz,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        matthias.bgg@gmail.com, sre@kernel.org, chunfeng.yun@mediatek.com,
        gregkh@linuxfoundation.org, jic23@kernel.org, lars@metafoo.de,
        lgirdwood@gmail.com, broonie@kernel.org, linux@roeck-us.net,
        heikki.krogerus@linux.intel.com, deller@gmx.de
Cc:     cy_huang@richtek.com, alice_chen@richtek.com,
        chiaen_wu@richtek.com, dri-devel@lists.freedesktop.org,
        linux-leds@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-pm@vger.kernel.org, linux-usb@vger.kernel.org,
        linux-iio@vger.kernel.org, linux-fbdev@vger.kernel.org
References: <20220531104211.17106-1-peterwu.pub@gmail.com>
 <20220531104211.17106-3-peterwu.pub@gmail.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220531104211.17106-3-peterwu.pub@gmail.com>
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On 31/05/2022 12:42, ChiaEn Wu wrote:
> From: ChiYuan Huang <cy_huang@richtek.com>
> 
> Add Mediatek mt6370 indicator documentation.
> 
> Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
> ---
>  .../leds/mediatek,mt6370-indicator.yaml       | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml b/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml
> new file mode 100644
> index 000000000000..823be3add097
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/mediatek,mt6370-indicator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LED driver for MT6370 PMIC from MediaTek Integrated.
> +
> +maintainers:
> +  - Alice Chen <alice_chen@richtek.com>
> +
> +description: |
> +  This module is part of the MT6370 MFD device.
> +  see Documentation/devicetree/bindings/mfd/mediatek,mt6370.yaml
> +  Add MT6370 LED driver include 4-channel RGB LED support Register/PWM/Breath Mode
> +
> +properties:
> +  compatible:
> +    const: mediatek,mt6370-indicator
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^(multi-)?led@[0-3]$":
> +    description: |
> +      Properties for a single LED.

Not useful description. Just skip it, I think schema allows it.

> +    $ref: common.yaml#
> +    type: object
> +
> +    properties:
> +      reg:
> +        description: |
> +          Index of the LED.

The same, regs are usually not described.

> +        enum:
> +          - 0 # LED output ISINK1
> +          - 1 # LED output ISINK2
> +          - 2 # LED output ISINK3
> +          - 3 # LED output ISINK4
> +
> +      mediatek,soft-start:
> +        description: |
> +          soft start step control, support /0.5ms/1ms/1.5ms/2ms.

Why here you start sentence lower-case?

> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        enum: [0, 1, 2, 3]

This has to be in logical values, so in ms, not in some register values.
Use proper unit suffix and enumerate the actual values.

> +
> +    unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - "#address-cells"
> +  - "#size-cells"
> +
> +additionalProperties: false


Best regards,
Krzysztof