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

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Message-ID: <CACRpkdbSs-vebvchxx-Tg+O5CUF5M3vZf-iytuW=ZECnHb2anA@mail.gmail.com>
Date:   Fri, 8 Dec 2023 13:54:21 +0100
From:   Linus Walleij <linus.walleij@...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, 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 Thu, Dec 7, 2023 at 12:13 PM Stefan Eichenberger <eichest@...il.com> wrote:

> From: Stefan Eichenberger <stefan.eichenberger@...adex.com>
>
> Add a new property to indicate that the device should be powered off in
> suspend mode.
>
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@...adex.com>
(...)
> +  atmel,poweroff-in-suspend:
> +    description: |
> +      When this property is set, all supplies are turned off when the system is
> +      going to suspend.
> +    type: boolean
   wakeup-source:
     type: boolean

As Krzysztof says it seems you are describing an operating system feature.

I can't help but wonder: shouldn't that pretty much be the default behaviour
if wakeup-source is *not* specified?

I.e. the property kind of describes !wakeup-source.

Yours,
Linus Walleij