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thermal: of: Extend of-thermal to export table of trip points

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This patch extends the of-thermal.c to export trip points for a given
thermal zone.

Thermal drivers should use of_thermal_get_trip_points() method to get
pointer to table of thermal trip points.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Lukasz Majewski 2014-12-08 18:04:20 +01:00 • committed by Eduardo Valentin
parent ad9914ac3b
commit ce8be77859
2 changed files with 29 additions and 0 deletions
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22
drivers/thermal/of-thermal.c
View file

@ -139,6 +139,28 @@ bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
} }
EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid); EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
/**
* of_thermal_get_trip_points - function to get access to a globally exported
* trip points
*
* @tz: pointer to a thermal zone
*
* This function provides a pointer to trip points table
*
* Return: pointer to trip points table, NULL otherwise
*/
const struct thermal_trip * const
of_thermal_get_trip_points(struct thermal_zone_device *tz)
{
struct __thermal_zone *data = tz->devdata;
if (!data)
return NULL;
return data->trips;
}
EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip, static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
enum thermal_trend *trend) enum thermal_trend *trend)
{ {

7
drivers/thermal/thermal_core.h
View file

@ -91,6 +91,8 @@ int of_parse_thermal_zones(void);
void of_thermal_destroy_zones(void); void of_thermal_destroy_zones(void);
int of_thermal_get_ntrips(struct thermal_zone_device *); int of_thermal_get_ntrips(struct thermal_zone_device *);
bool of_thermal_is_trip_valid(struct thermal_zone_device *, int); bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
const struct thermal_trip * const
of_thermal_get_trip_points(struct thermal_zone_device *);
#else #else
static inline int of_parse_thermal_zones(void) { return 0; } static inline int of_parse_thermal_zones(void) { return 0; }
static inline void of_thermal_destroy_zones(void) { } static inline void of_thermal_destroy_zones(void) { }
@ -103,6 +105,11 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
{ {
return 0; return 0;
} }
static inline const struct thermal_trip * const
of_thermal_get_trip_points(struct thermal_zone_device *tz)
{
return NULL;
}
#endif #endif
#endif /* __THERMAL_CORE_H__ */ #endif /* __THERMAL_CORE_H__ */