linux-kernel - Re: [PATCH v3 05/10] dt-bindings: pinctrl: mediatek,pinctrl-mt6795: Fix interrupt count

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Message-ID: <6c889c7e-4c5a-a201-e37c-bf95b6826584@collabora.com>
Date:   Mon, 10 Oct 2022 13:47:18 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Yassine Oudjana <yassine.oudjana@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...nel.org>,
        Andy Teng <andy.teng@...iatek.com>
Cc:     Yassine Oudjana <y.oudjana@...tonmail.com>,
        linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 05/10] dt-bindings: pinctrl: mediatek,pinctrl-mt6795:
 Fix interrupt count

Il 10/10/22 13:13, Krzysztof Kozlowski ha scritto:
> On 07/10/2022 08:58, Yassine Oudjana wrote:
>> From: Yassine Oudjana <y.oudjana@...tonmail.com>
>>
>> The document currently states a maximum of 1 interrupt, but the DT
>> has 2 specified causing a dtbs_check error. Replace the maximum limit
>> with a minimum and add per-interrupt descriptions to pass the check.
>>
>> Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>> Signed-off-by: Yassine Oudjana <y.oudjana@...tonmail.com>
>> ---
>>   .../devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml | 5 ++++-
>>   1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml
>> index 73ae6e11410b..a3a3f7fb9605 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml
>> +++ b/Documentation/devicetree/bindings/pinctrl/mediatek,pinctrl-mt6795.yaml
>> @@ -47,7 +47,10 @@ properties:
>>   
>>     interrupts:
>>       description: The interrupt outputs to sysirq.
>> -    maxItems: 1
>> +    minItems: 1
>> +    items:
>> +      - description: EINT interrupt
>> +      - description: EINT event_b interrupt
> 
> Is second interrupt really optional or you just wanted to silence the
> warning?
> 

The event_b interrupt exists (and fires on certain events, if configured to do so),
but it's currently unused.

It's really optional.

> Best regards,
> Krzysztof
>