summaryrefslogtreecommitdiffstats
path: root/drivers/thermal
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/Kconfig11
-rw-r--r--drivers/thermal/thermal_core.c3
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index a1b43ea..46bdecf 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -42,6 +42,17 @@ config THERMAL_OF
Say 'Y' here if you need to build thermal infrastructure
based on device tree.
+config THERMAL_WRITABLE_TRIPS
+ bool "Enable writable trip points"
+ help
+ This option allows the system integrator to choose whether
+ trip temperatures can be changed from userspace. The
+ writable trips need to be specified when setting up the
+ thermal zone but the choice here takes precedence.
+
+ Say 'Y' here if you would like to allow userspace tools to
+ change trip temperatures.
+
choice
prompt "Default Thermal governor"
default THERMAL_DEFAULT_GOV_STEP_WISE
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index b389bc2..78bb9aa 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1539,7 +1539,8 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
tz->trip_temp_attrs[indx].name;
tz->trip_temp_attrs[indx].attr.attr.mode = S_IRUGO;
tz->trip_temp_attrs[indx].attr.show = trip_point_temp_show;
- if (mask & (1 << indx)) {
+ if (IS_ENABLED(CONFIG_THERMAL_WRITABLE_TRIPS) &&
+ mask & (1 << indx)) {
tz->trip_temp_attrs[indx].attr.attr.mode |= S_IWUSR;
tz->trip_temp_attrs[indx].attr.store =
trip_point_temp_store;
OpenPOWER on IntegriCloud