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

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Date:   Fri, 17 Feb 2023 02:23:50 +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 2023/02/14 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...

Thank you,

---
Best Regards
Kunihiko Hayashi