From 27365a6c7d64a3bba22ee62109e4a071bbd7f933 Mon Sep 17 00:00:00 2001 From: Durgadoss R Date: Wed, 25 Jul 2012 10:10:59 +0800 Subject: 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 Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- include/linux/thermal.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') 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; -- cgit v1.2.3