linux-kernel - Re: [PATCH v2 03/11] dt-bindings: leds: Document "activity" trigger

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Date:   Tue, 28 Sep 2021 07:51:40 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     Rob Herring <robh@...nel.org>
Cc:     DTML <devicetree@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-leds@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>, pavel@....cz,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 03/11] dt-bindings: leds: Document "activity" trigger

Hi Rob,

On Tue, 28 Sept 2021 at 04:52, Rob Herring <robh@...nel.org> wrote:
>
> On Thu, Sep 23, 2021 at 03:54:52PM +0900, Daniel Palmer wrote:
> > The "activity" trigger can be used as the default but it's currently
> > undocumented so validating a devicetree that uses it causes a warning.
>
> It is preferred to use 'function' and LED_FUNCTION_CPU. Is there some
> reason that can't be used?

LED_FUNCTION_CPU seems to be tied to
drivers/leds/trigger/ledtrig-cpu.c which I think serves the same
purpose but does it a slightly different way.
Would adding LED_FUNCTION_ACTIVITY work?

Thanks,

Daniel