RE: [PATCH 1/3] Thermal: initialize thermal zone device correctly
From: Chen, Yu C
Date: Mon Sep 28 2015 - 13:30:40 EST
> -----Original Message-----
> From: Javi Merino [mailto:javi.merino@xxxxxxx]
> Sent: Monday, September 28, 2015 10:28 PM
> To: Chen, Yu C
> Cc: linux-pm@xxxxxxxxxxxxxxx; edubezval@xxxxxxxxx; Zhang, Rui; linux-
> kernel@xxxxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH 1/3] Thermal: initialize thermal zone device correctly
> On Sun, Sep 27, 2015 at 06:48:28AM +0100, Chen Yu wrote:
> > From: Zhang Rui <rui.zhang@xxxxxxxxx>
> > After thermal zone device registered, as we have not read any
> > temperature before, thus tz->temperature should not be 0, which
> > actually means 0C, and thermal trend is not available.
> > In this case, we need specially handling for the first
> > thermal_zone_device_update().
> > Both thermal core framework and step_wise governor is enhanced to
> > handle this.
> It may be worth pointing out that the step_wise governor is the only one
> that uses trends, so it's the only thermal governor that needs to be updated.
OK, will add.
> > - if (old_target == instance->target)
> > + if (instance->initialized &&
> > + old_target == instance->target)
> nit: it fits in one line,
> if (instance->initialized && old_target == instance->target)
> is 77 characters.
Not sure if the limit for one line is 75 in checkpatch.pl, I'll have a try.