summaryrefslogtreecommitdiff
path: root/include/linux/thermal.h
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2016-02-01 18:44:07 -0800
committerDavid S. Miller <davem@davemloft.net>2016-02-01 18:44:07 -0800
commitb45efa30a626e915192a6c548cd8642379cd47cc (patch)
tree90d8b43ebceb850b0e7852d75283aebbd2abbc00 /include/linux/thermal.h
parent7a26019fdecdb45ff784ae4e3b7e0cc9045100ca (diff)
parent34229b277480f46c1e9a19f027f30b074512e68b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/linux/thermal.h')
-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 613c29bd6baf..e13a1ace50e9 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -43,6 +43,9 @@
/* Default weight of a bound cooling device */
#define THERMAL_WEIGHT_DEFAULT 0
+/* use value, which < 0K, to indicate an invalid/uninitialized temperature */
+#define THERMAL_TEMP_INVALID -274000
+
/* Unit conversion macros */
#define DECI_KELVIN_TO_CELSIUS(t) ({ \
long _t = (t); \
@@ -167,6 +170,7 @@ struct thermal_attr {
* @forced_passive: If > 0, temperature at which to switch on all ACPI
* processor cooling devices. Currently only used by the
* step-wise governor.
+ * @need_update: if equals 1, thermal_zone_device_update needs to be invoked.
* @ops: operations this &thermal_zone_device supports
* @tzp: thermal zone parameters
* @governor: pointer to the governor for this thermal zone
@@ -194,6 +198,7 @@ struct thermal_zone_device {
int emul_temperature;
int passive;
unsigned int forced_passive;
+ atomic_t need_update;
struct thermal_zone_device_ops *ops;
struct thermal_zone_params *tzp;
struct thermal_governor *governor;