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thermal: thermal_core: allow binding with limits on bind_params

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When registering a thermal zone device using platform information
via bind_params, the thermal framework will always perform the
cdev binding using the lowest and highest limits (THERMAL_NO_LIMIT).

This patch changes the data structures so that it is possible
to inform what are the desired limits for each trip point
inside a bind_param. The way the binding is performed is also
changed so that it uses the new data structure.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
This commit is contained in:
Eduardo Valentin 2013-07-16 15:26:28 -04:00
parent ccba4ffd9e
commit a8892d8389
3 changed files with 32 additions and 4 deletions
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10
include/linux/thermal.h
View file

@ -207,6 +207,16 @@ struct thermal_bind_params {
* See Documentation/thermal/sysfs-api.txt for more information.
*/
int trip_mask;
/*
* This is an array of cooling state limits. Must have exactly
* 2 * thermal_zone.number_of_trip_points. It is an array consisting
* of tuples <lower-state upper-state> of state limits. Each trip
* will be associated with one state limit tuple when binding.
* A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS>
* on all trips.
*/
unsigned long *binding_limits;
int (*match) (struct thermal_zone_device *tz,
struct thermal_cooling_device *cdev);
};