linux-kernel - Re: [PATCH v4 1/2] dt-bindings: pwm: samsung: add exynosautov9 compatible

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Date:   Mon, 17 Jul 2023 14:22:58 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jaewon Kim <jaewon02.kim@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>
Cc:     linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v4 1/2] dt-bindings: pwm: samsung: add exynosautov9
 compatible

On 17/07/2023 13:26, Jaewon Kim wrote:
> 
> On 23. 7. 17. 19:59, Krzysztof Kozlowski wrote:
>> On 17/07/2023 11:42, Jaewon Kim wrote:
>>> Add samsung,exynosautov9-pwm compatible string to binding document.
>>>
>>> Signed-off-by: Jaewon Kim <jaewon02.kim@...sung.com>
>>> ---
>>>   .../devicetree/bindings/pwm/pwm-samsung.yaml     | 16 ++++++++++------
>>>   1 file changed, 10 insertions(+), 6 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.yaml b/Documentation/devicetree/bindings/pwm/pwm-samsung.yaml
>>> index fe603fb1b2cc..6f65e2b52f52 100644
>>> --- a/Documentation/devicetree/bindings/pwm/pwm-samsung.yaml
>>> +++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.yaml
>>> @@ -20,12 +20,16 @@ description: |+
>>>   
>>>   properties:
>>>     compatible:
>>> -    enum:
>>> -      - samsung,s3c2410-pwm             # 16-bit, S3C24xx
>>> -      - samsung,s3c6400-pwm             # 32-bit, S3C64xx
>>> -      - samsung,s5p6440-pwm             # 32-bit, S5P64x0
>>> -      - samsung,s5pc100-pwm             # 32-bit, S5PC100, S5PV210, Exynos4210 rev0 SoCs
>>> -      - samsung,exynos4210-pwm          # 32-bit, Exynos
>>> +    oneOf:
>>> +      - const: samsung,s3c2410-pwm        # 16-bit
>>> +      - const: samsung,s3c6400-pwm        # 32-bit, S3C64xx
>>> +      - const: samsung,s5p6440-pwm        # 32-bit, S5P64x0
>>> +      - const: samsung,s5pc100-pwm        # 32-bit, S5PC100, S5PV210, Exynos4210 rev0 SoCs
>>> +      - const: samsung,exynos4210-pwm     # 32-bit, Exynos
>> These are still an enum.
> Okay I will change const to enum.
>>
>>> +      - items:
>>> +          - enum:
>>> +              - samsung,exynosautov9-pwm  # 32-bit, ExynosAutov9
>> Let's drop the comment?
> 
> Should I just delete this comment or delete all comments in the 
> enum(16-bit,S3C24xx, .....).

No, the other can stay. Here it is redundant, since Autov9 is obvious -
comes from compatible - and rest is coming from compatibility with older
models.

Best regards,
Krzysztof