linux-kernel - Re: [PATCH v2] dt-bindings: ata: Add UniPhier controller binding

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Message-ID: <27903ae4-3a66-004e-b9f5-e0d4deebdaa6@socionext.com>
Date:   Fri, 17 Feb 2023 20:14:49 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Jens Axboe <axboe@...nel.dk>
Cc:     linux-ide@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: ata: Add UniPhier controller binding

On 2023/02/17 17:42, Krzysztof Kozlowski wrote:
> On 16/02/2023 18:23, Kunihiko Hayashi wrote:
>> On 2023/02/14 18:42, Krzysztof Kozlowski wrote:
>>> On 14/02/2023 10:33, Kunihiko Hayashi wrote:
>>>> Hi Krzysztof,
>>>>
>>>> On 2023/02/13 18:10, Krzysztof Kozlowski wrote:
>>>>> On 13/02/2023 05:54, Kunihiko Hayashi wrote:
>>>>>> Add UniPhier SATA controller compatible string to the platform
>>>>>> binding.
>>>>>> This controller needs maximum three reset controls.
>>>>>>
>>>>>> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
>>>>>> ---
>>>>>>     .../devicetree/bindings/ata/ahci-platform.yaml  | 17
>>>>>> +++++++++++++++++
>>>>>>     1 file changed, 17 insertions(+)
>>>>>>
>>>>>> Changes since v1:
>>>>>> - Restrict resets property changes with compatible strings
>>>>>> - Fix maxItems from two to three
>>>>>>
>>>>>> diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.yaml
>>>>>> b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
>>>>>> index 7dc2a2e8f598..25dd5ffaa517 100644
>>>>>> --- a/Documentation/devicetree/bindings/ata/ahci-platform.yaml
>>>>>> +++ b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
>>>>>> @@ -45,6 +45,9 @@ properties:
>>>>>>                   - marvell,armada-8k-ahci
>>>>>>                   - marvell,berlin2-ahci
>>>>>>                   - marvell,berlin2q-ahci
>>>>>> +              - socionext,uniphier-pro4-ahci
>>>>>> +              - socionext,uniphier-pxs2-ahci
>>>>>> +              - socionext,uniphier-pxs3-ahci
>>>>>>               - const: generic-ahci
>>>>>>           - enum:
>>>>>
>>>>> Top level is saying reset=1, so did you test your bindings?
>>>>
>>>> Umm, I didn't see any errors on dt_binding_check, anyway I'll add
>>>> initial minItems:1 and maxItems:3 on top level first.
>>>
>>> You need to test also all DTS using these bindings. Yours and others.
>>> If you tested the DTS (with proper binding, not one which is basically
>>> noop):
>>>
>>> uniphier-pro4-ace.dtb: sata@...00000: resets: [[27, 12], [27, 28], [37,
>>> 3]] is too long
>>
>> I've tried updating tools and doing dtbs_check, but I couldn't find this
>> error. It seems that this error can't be detected unless there is the
>> specified compatible in "select:".
>>
>>> BTW, the patch has other errors - just look at the beginning of the
>>> file. I cannot see it here in the diff, but when you open the file you
>>> should notice it.
>>
>> Sorry, but I cannot see anything wrong.
>> I'll check the header or something...
> 
> If you open the file, you will notice the same compatibles in two
> places. In select and in properties. You added your compatibles only to
> one place, so not symmetrically.

OK, I understand. I'll add them in both.

Thank you,

---
Best Regards
Kunihiko Hayashi