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authorDurgadoss R <dugardoss.r@intel.com>2012-07-25 10:10:59 +0800
committerLen Brown <len.brown@intel.com>2012-07-24 23:19:26 -0400
commit27365a6c7d64a3bba22ee62109e4a071bbd7f933 (patch)
treed8a5c1bf246171e2983b7f801b64a758fa6f62e3 /include
parentc56f5c0342dfee11a1a13d2f5bb7618de5b17590 (diff)
Thermal: Add Hysteresis attributes
The Linux Thermal Framework does not support hysteresis attributes. Most thermal sensors, today, have a hysteresis value associated with trip points. This patch adds hysteresis attributes on a per-trip-point basis, to the Thermal Framework. These attributes are optionally writable. Signed-off-by: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/thermal.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 6eaf9146c847..cfc8d908892e 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -60,6 +60,10 @@ struct thermal_zone_device_ops {
unsigned long *);
int (*set_trip_temp) (struct thermal_zone_device *, int,
unsigned long);
+ int (*get_trip_hyst) (struct thermal_zone_device *, int,
+ unsigned long *);
+ int (*set_trip_hyst) (struct thermal_zone_device *, int,
+ unsigned long);
int (*get_crit_temp) (struct thermal_zone_device *, unsigned long *);
int (*notify) (struct thermal_zone_device *, int,
enum thermal_trip_type);
@@ -98,6 +102,7 @@ struct thermal_zone_device {
struct device device;
struct thermal_attr *trip_temp_attrs;
struct thermal_attr *trip_type_attrs;
+ struct thermal_attr *trip_hyst_attrs;
void *devdata;
int trips;
int tc1;