diff options
| author | Durgadoss R <durgadoss.r@intel.com> | 2012-09-18 09:34:57 +0400 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2012-11-05 10:00:05 +0400 |
| commit | a4a15485fbba44d162d626141b9a7404e790f570 (patch) | |
| tree | 1fdff11c9a771b879238f03eafec080fa193edf7 /include/linux/thermal.h | |
| parent | 50125a9b27dd09e9afdc1b8712ba0b3859886c68 (diff) | |
| download | linux-a4a15485fbba44d162d626141b9a7404e790f570.tar.xz | |
Thermal: Add thermal governor registration APIs
This patch creates a structure to hold platform
thermal governor information, and provides APIs
for individual thermal governors to register/unregister
with the Thermal framework.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'include/linux/thermal.h')
| -rw-r--r-- | include/linux/thermal.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 58cb1c036a0e..6182bd5f7504 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -46,6 +46,9 @@ #define THERMAL_GENL_VERSION 0x01 #define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_group" +/* Default Thermal Governor: Does Linear Throttling */ +#define DEFAULT_THERMAL_GOVERNOR "step_wise" + struct thermal_zone_device; struct thermal_cooling_device; @@ -158,6 +161,7 @@ struct thermal_zone_device { unsigned int forced_passive; const struct thermal_zone_device_ops *ops; const struct thermal_zone_params *tzp; + struct thermal_governor *governor; struct list_head thermal_instances; struct idr idr; struct mutex lock; /* protect thermal_instances list */ @@ -165,6 +169,14 @@ struct thermal_zone_device { struct delayed_work poll_queue; }; +/* Structure that holds thermal governor information */ +struct thermal_governor { + char name[THERMAL_NAME_LENGTH]; + int (*throttle)(struct thermal_zone_device *tz, int trip); + struct list_head governor_list; + struct module *owner; +}; + /* Structure that holds binding parameters for a zone */ struct thermal_bind_params { struct thermal_cooling_device *cdev; @@ -189,6 +201,7 @@ struct thermal_bind_params { /* Structure to define Thermal Zone parameters */ struct thermal_zone_params { + char governor_name[THERMAL_NAME_LENGTH]; int num_tbps; /* Number of tbp entries */ struct thermal_bind_params *tbp; }; @@ -219,6 +232,9 @@ int get_tz_trend(struct thermal_zone_device *, int); struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, struct thermal_cooling_device *, int); +int thermal_register_governor(struct thermal_governor *); +void thermal_unregister_governor(struct thermal_governor *); + #ifdef CONFIG_NET extern int thermal_generate_netlink_event(u32 orig, enum events event); #else |