linux-kernel - Re: [PATCH V3 1/2] bindings: media: gpio-ir-receiver: add linux,autosuspend-period property

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Date:   Sat, 3 Oct 2020 09:46:56 +0100
From:   Sean Young <sean@...s.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Joakim Zhang <qiangqing.zhang@....com>, mchehab@...nel.org,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-imx@....com
Subject: Re: [PATCH V3 1/2] bindings: media: gpio-ir-receiver: add
 linux,autosuspend-period property

On Tue, Sep 29, 2020 at 10:52:01AM -0500, Rob Herring wrote:
> On Wed, Sep 23, 2020 at 03:08:06AM +0800, Joakim Zhang wrote:
> > Add linux,autosuspend-period property for gpio ir receiver. Some cpuidle
> > systems wake from idle may take a bit long time, for such case, need
> > disable cpuidle temporarily.
> > 
> > Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
> > ---
> > ChangeLogs:
> > V1->V2:
> > 	* New add.
> > V2->V3:
> > 	* linux,autosuspend-period = 125; -> linux,autosuspend-period = <125>;
> > ---
> >  Documentation/devicetree/bindings/media/gpio-ir-receiver.txt | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt b/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt
> > index 58261fb7b408..e1447c9b0e26 100644
> > --- a/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt
> > +++ b/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt
> > @@ -7,6 +7,8 @@ Required properties:
> >  Optional properties:
> >  	- linux,rc-map-name: see rc.txt file in the same
> >  	  directory.
> > +        - linux,autosuspend-period: autosuspend delay time,
> > +          the unit is milisecond.
> 
> What makes this linux specific?

Good point. "linux,autosuspend-period" does not say what is being
suspended either. How about "cpuidle-suspend-period" instead?


Sean