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thermal: add hwmon sysfs I/F

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Add hwmon sys I/F for generic thermal driver.

Note: we have one hwmon class device for EACH TYPE of the thermal zone device.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2008-04-21 16:07:52 +08:00 • committed by Len Brown
parent 9ec732ff80
commit e68b16abd9
2 changed files with 187 additions and 0 deletions
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24
include/linux/thermal.h
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@ -66,6 +66,23 @@ struct thermal_cooling_device {
((long)t-2732+5)/10 : ((long)t-2732-5)/10)
#define CELSIUS_TO_KELVIN(t) ((t)*10+2732)
#if defined(CONFIG_HWMON) || \
(defined(CONFIG_HWMON_MODULE) && defined(CONFIG_THERMAL_MODULE))
/* thermal zone devices with the same type share one hwmon device */
struct thermal_hwmon_device {
char type[THERMAL_NAME_LENGTH];
struct device *device;
int count;
struct list_head tz_list;
struct list_head node;
};
struct thermal_hwmon_attr {
struct device_attribute attr;
char name[16];
};
#endif
struct thermal_zone_device {
int id;
char type[THERMAL_NAME_LENGTH];
@ -77,6 +94,13 @@ struct thermal_zone_device {
struct idr idr;
struct mutex lock; /* protect cooling devices list */
struct list_head node;
#if defined(CONFIG_HWMON) || \
(defined(CONFIG_HWMON_MODULE) && defined(CONFIG_THERMAL_MODULE))
struct list_head hwmon_node;
struct thermal_hwmon_device *hwmon;
struct thermal_hwmon_attr temp_input; /* hwmon sys attr */
struct thermal_hwmon_attr temp_crit; /* hwmon sys attr */
#endif
};
struct thermal_zone_device *thermal_zone_device_register(char *, int, void *,