lkml.org 
[lkml]   [2020]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] dt-bindings: thermal: make cooling-maps property optional
On Mon, Mar 16, 2020 at 8:22 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 09/03/2020 05:54, andy.tang@nxp.com wrote:
> > From: Yuantian Tang <andy.tang@nxp.com>
> >
> > Cooling-maps doesn't have to be a required property because 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.
> >
> > For thermal zones with no cooling-maps, there could be critic trips
> > that can trigger CPU reset or shutdown. So they still can take actions.
> >
> > Signed-off-by: Yuantian Tang <andy.tang@nxp.com>

Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>

>
> Amit, I'm about to pick this patch, it will collide with the yaml
> conversion changes.

Thanks for the headsup. I can fixup v3 when I respin.

However, I've always interpreted this binding as follows:
- cooling-maps should be mandatory for active and passive trip types
otherwise there will be no cooling
- cooling-maps make no sense for critical trip type since we're
invoking system shutdown
- cooling-maps are optional for hot trip types.

Is this your understanding too?

We should be able to enforce this in YAML.

Regards,
Amit

\
 
 \ /
  Last update: 2020-03-16 17:14    [W:0.301 / U:0.504 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site