linux-kernel - Re: [PATCH v1 1/2] dt-bindings: input: atmel,maxtouch: add poweroff-in-suspend property

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Date:   Fri, 8 Dec 2023 13:47:32 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Stefan Eichenberger <eichest@...il.com>
Cc:     nick@...anahar.org, dmitry.torokhov@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
        claudiu.beznea@...on.dev, linus.walleij@...aro.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Stefan Eichenberger <stefan.eichenberger@...adex.com>
Subject: Re: [PATCH v1 1/2] dt-bindings: input: atmel,maxtouch: add
 poweroff-in-suspend property

On 08/12/2023 13:37, Stefan Eichenberger wrote:
> Hi Krzysztof,
> 
> On Thu, Dec 07, 2023 at 05:59:08PM +0100, Krzysztof Kozlowski wrote:
>> On 07/12/2023 12:12, Stefan Eichenberger wrote:
>>> diff --git a/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml b/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
>>> index c40799355ed7..047a5101341c 100644
>>> --- a/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
>>> +++ b/Documentation/devicetree/bindings/input/atmel,maxtouch.yaml
>>> @@ -87,6 +87,12 @@ properties:
>>>        - 2 # ATMEL_MXT_WAKEUP_GPIO
>>>      default: 0
>>>  
>>> +  atmel,poweroff-in-suspend:
>>> +    description: |
>>> +      When this property is set, all supplies are turned off when the system is
>>> +      going to suspend.
>>
>> You described the desired Linux feature or behavior, not the actual
>> hardware. The bindings are about the latter, so instead you need to
>> rephrase the property and its description to match actual hardware
>> capabilities/features/configuration etc.
> 
> Thanks a lot for the feedback. Would the following be okay as a
> description?
> 
> vdda and vdd are switched off in suspend mode.

Are switched by who? Linux driver? Then nothing changed...

Best regards,
Krzysztof