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Diffstat (limited to 'include/linux/thermal.h')
-rw-r--r--include/linux/thermal.h28
1 files changed, 20 insertions, 8 deletions
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 4b94a61955df..91b34812cd84 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -44,6 +44,12 @@ enum thermal_trip_type {
THERMAL_TRIP_CRITICAL,
};
+enum thermal_trend {
+ THERMAL_TREND_STABLE, /* temperature is stable */
+ THERMAL_TREND_RAISING, /* temperature is raising */
+ THERMAL_TREND_DROPPING, /* temperature is dropping */
+};
+
struct thermal_zone_device_ops {
int (*bind) (struct thermal_zone_device *,
struct thermal_cooling_device *);
@@ -65,6 +71,8 @@ struct thermal_zone_device_ops {
int (*set_trip_hyst) (struct thermal_zone_device *, int,
unsigned long);
int (*get_crit_temp) (struct thermal_zone_device *, unsigned long *);
+ int (*get_trend) (struct thermal_zone_device *, int,
+ enum thermal_trend *);
int (*notify) (struct thermal_zone_device *, int,
enum thermal_trip_type);
};
@@ -75,6 +83,8 @@ struct thermal_cooling_device_ops {
int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
};
+#define THERMAL_NO_LIMIT -1UL /* no upper/lower limit requirement */
+
#define THERMAL_TRIPS_NONE -1
#define THERMAL_MAX_TRIPS 12
#define THERMAL_NAME_LENGTH 20
@@ -84,6 +94,9 @@ struct thermal_cooling_device {
struct device device;
void *devdata;
const struct thermal_cooling_device_ops *ops;
+ bool updated; /* true if the cooling device does not need update */
+ struct mutex lock; /* protect thermal_instances list */
+ struct list_head thermal_instances;
struct list_head node;
};
@@ -105,17 +118,16 @@ struct thermal_zone_device {
struct thermal_attr *trip_hyst_attrs;
void *devdata;
int trips;
- int tc1;
- int tc2;
int passive_delay;
int polling_delay;
+ int temperature;
int last_temperature;
- bool passive;
+ int passive;
unsigned int forced_passive;
const struct thermal_zone_device_ops *ops;
- struct list_head cooling_devices;
+ struct list_head thermal_instances;
struct idr idr;
- struct mutex lock; /* protect cooling devices list */
+ struct mutex lock; /* protect thermal_instances list */
struct list_head node;
struct delayed_work poll_queue;
};
@@ -152,12 +164,12 @@ enum {
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
- void *, const struct thermal_zone_device_ops *, int tc1,
- int tc2, int passive_freq, int polling_freq);
+ void *, const struct thermal_zone_device_ops *, int, int);
void thermal_zone_device_unregister(struct thermal_zone_device *);
int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
- struct thermal_cooling_device *);
+ struct thermal_cooling_device *,
+ unsigned long, unsigned long);
int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
struct thermal_cooling_device *);
void thermal_zone_device_update(struct thermal_zone_device *);