linux-kernel - RE: [PATCH 2/2] dt-bindings: gpio: realtek: Add realtek,rtd-gpio bindings

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Date:   Thu, 2 Nov 2023 03:11:29 +0000
From:   TY_Chang[張子逸] <tychang@...ltek.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        "Andy Shevchenko" <andy@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 2/2] dt-bindings: gpio: realtek: Add realtek,rtd-gpio bindings

Hi Krzysztof,

Thank you for the review.

>On 01/11/2023 03:58, Tzuyi Chang wrote:
>> This patch adds the device tree bindings for the Realtek DHC RTD SoCs
>> GPIO controllers.
>>
>
>A nit, subject: drop second/last, redundant "bindings". The "dt-bindings" prefix is
>already stating that these are bindings.
>
I will remove it.

>> Signed-off-by: Tzuyi Chang <tychang@...ltek.com>
>> ---
>>  .../bindings/gpio/realtek,rtd-gpio.yaml       | 56 +++++++++++++++++++
>>  1 file changed, 56 insertions(+)
>>  create mode 100644
>> Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
>
>How does your binding come after the user?
>

I wil move the binding to the first patch.

>>
>> diff --git
>> a/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
>> b/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
>> new file mode 100644
>> index 000000000000..6cab7ec50c88
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/gpio/realtek,rtd-gpio.yaml
>> @@ -0,0 +1,56 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) # Copyright 2023
>> +Realtek Semiconductor Corporation %YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/gpio/realtek,rtd-gpio.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Realtek DHC GPIO controller
>
>What is DHC? Where is it explained in the binding?
>

This is the abbreviation of "Digital Home Center". I will add the description to explain it.

>> +
>> +maintainers:
>> +  - TY Chang <tychang@...ltek.com>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - realtek,rtd-gpio
>
>What is "rtd"? Generic name? Drop. You cannot have generic compatibles.
>

This is a generic name for the others SoCs without the specific compatible.
I will fix it.

>
>> +      - realtek,rtd1295-misc-gpio
>> +      - realtek,rtd1295-iso-gpio
>> +      - realtek,rtd1395-iso-gpio
>> +      - realtek,rtd1619-iso-gpio
>> +
>> +  reg:
>> +    maxItems: 2
>
>You need to describe the items instead.
>

I will add the description.

>> +
>> +  interrupts:
>> +    maxItems: 2
>
>You need to describe the items instead.
>

I will add the description.

>> +
>> +  gpio-ranges: true
>> +
>> +  gpio-controller: true
>> +
>> +  "#gpio-cells":
>> +    const: 2
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupts
>> +  - gpio-ranges
>> +  - gpio-controller
>> +  - "#gpio-cells"
>
>Best regards,
>Krzysztof


Thanks,
Tzuyi Chang