Re: [PATCH 01/16] Thermal: Make Thermal trip points writeable

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Hi, Rafael,

thanks for reviewing this patch set.

On 四, 2012-07-19 at 21:38 +0200, Rafael J. Wysocki wrote:
> On Thursday, July 19, 2012, Zhang Rui wrote:
> > From: Durgadoss R <dugardoss.r@xxxxxxxxx>
> > 
> > Some of the thermal drivers using the Generic Thermal Framework
> > require (all/some) trip points to be writeable. This patch makes
> > the trip point temperatures writeable on a per-trip point basis,
> > and modifies the required function call in thermal.c. This patch
> > also updates the Documentation to reflect the new change.
> > 
> > Signed-off-by: Durgadoss R <durgadoss.r@xxxxxxxxx>
> > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
> > ---
> >  Documentation/thermal/sysfs-api.txt      |    4 +-
> >  drivers/acpi/thermal.c                   |    4 +-
> >  drivers/platform/x86/acerhdf.c           |    2 +-
> >  drivers/platform/x86/intel_mid_thermal.c |    2 +-
> >  drivers/thermal/spear_thermal.c          |    2 +-
> >  drivers/thermal/thermal_sys.c            |  147 +++++++++++++++++++++---------
> >  include/linux/thermal.h                  |   15 ++-
> >  7 files changed, 125 insertions(+), 51 deletions(-)
> > 
> > diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
> > index 1733ab9..0c7c423 100644
> > --- a/Documentation/thermal/sysfs-api.txt
> > +++ b/Documentation/thermal/sysfs-api.txt
> > @@ -32,7 +32,8 @@ temperature) and throttle appropriate devices.
> >  
> >  1.1 thermal zone device interface
> >  1.1.1 struct thermal_zone_device *thermal_zone_device_register(char *name,
> > -		int trips, void *devdata, struct thermal_zone_device_ops *ops)
> > +		int trips, int flag, void *devdata,
> > +		struct thermal_zone_device_ops *ops)
> >  
> >      This interface function adds a new thermal zone device (sensor) to
> >      /sys/class/thermal folder as thermal_zone[0-*]. It tries to bind all the
> > @@ -40,6 +41,7 @@ temperature) and throttle appropriate devices.
> >  
> >      name: the thermal zone name.
> >      trips: the total number of trip points this thermal zone supports.
> > +    flag: Bit string: If 'n'th bit is set, then trip point 'n' is writeable.
> >      devdata: device private data
> >      ops: thermal zone device call-backs.
> >  	.bind: bind the thermal zone device with a thermal cooling device.
> 
> I wonder.  What is the maximum number of trip points currently passed to this
> function in one call?
> 
in include/linux/thermal.h
#define THERMAL_MAX_TRIPS 12

thanks,
rui

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