linux-kernel - RE: [EXT] Re: [PATCH] dt-bindings: thermal: Make cooling-maps property optional

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Message-ID: <VI1PR04MB4333E170CF4044924AB8E50FF3E00@VI1PR04MB4333.eurprd04.prod.outlook.com>
Date:   Mon, 24 Jun 2019 07:32:43 +0000
From:   Andy Tang <andy.tang@....com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "edubezval@...il.com" <edubezval@...il.com>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [EXT] Re: [PATCH] dt-bindings: thermal: Make cooling-maps
 property optional

Hi Edubezval, Rui,

Are you going to pick up this patch?

BR,
Andy

> -----Original Message-----
> From: Daniel Lezcano <daniel.lezcano@...aro.org>
> Sent: 2019年6月4日 14:04
> To: Andy Tang <andy.tang@....com>; rui.zhang@...el.com;
> edubezval@...il.com
> Cc: robh+dt@...nel.org; mark.rutland@....com; linux-pm@...r.kernel.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [EXT] Re: [PATCH] dt-bindings: thermal: Make cooling-maps property
> optional
> 
> Caution: EXT Email
> 
> On 04/06/2019 07:56, Andy Tang wrote:
> > Hi Edubezval, Rui,
> >
> > Any further comments?
> 
> From my POV, this patch makes sense. We may be interested to show up the
> thermal zones in sysfs and optionally mitigate them via an userspace
> governor.
> 
> Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> 
> >> -----Original Message-----
> >> From: Yuantian Tang <andy.tang@....com>
> >> Sent: 2019年5月15日 17:37
> >> To: rui.zhang@...el.com; edubezval@...il.com
> >> Cc: robh+dt@...nel.org; daniel.lezcano@...aro.org;
> >> mark.rutland@....com; linux-pm@...r.kernel.org;
> >> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Andy Tang
> >> <andy.tang@....com>
> >> Subject: [PATCH] dt-bindings: thermal: Make cooling-maps property
> >> optional
> >>
> >> There may be no cooling device on system, or there are no enough
> >> cooling devices for each thermal zone in multiple thermal zone cases
> >> since cooling devices can't be shared.
> >> So make this property optional to remove such limitations.
> >>
> >> Signed-off-by: Yuantian Tang <andy.tang@....com>
> >> ---
> >>  .../devicetree/bindings/thermal/thermal.txt        |    4 ++--
> >>  1 files changed, 2 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/Documentation/devicetree/bindings/thermal/thermal.txt
> >> b/Documentation/devicetree/bindings/thermal/thermal.txt
> >> index ca14ba9..694e834 100644
> >> --- a/Documentation/devicetree/bindings/thermal/thermal.txt
> >> +++ b/Documentation/devicetree/bindings/thermal/thermal.txt
> >> @@ -142,11 +142,11 @@ Required properties:
> >>  - trips:            A sub-node which is a container of only trip point
> nodes
> >>    Type: sub-node    required to describe the thermal zone.
> >>
> >> +
> >> +Optional property:
> >>  - cooling-maps:             A sub-node which is a container of only
> cooling device
> >>    Type: sub-node    map nodes, used to describe the relation
> between
> >> trips
> >>                      and cooling devices.
> >> -
> >> -Optional property:
> >>  - coefficients:             An array of integers (one signed cell)
> containing
> >>    Type: array               coefficients to compose a linear relation
> between
> >>    Elem size: one cell       the sensors listed in the thermal-sensors
> property.
> >> --
> >> 1.7.1
> >
> 
> 
> --
> 
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