of: thermal: Introduce sustainable power for a thermal zone
Introduce an optional property called, sustainable-power, which
represents the power (in mW) which the thermal zone can safely
dissipate.
If provided the property is parsed and associated with the thermal
zone via the thermal zone parameters.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index c606b85..705b21d 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -866,6 +866,7 @@
for_each_child_of_node(np, child) {
struct thermal_zone_device *zone;
struct thermal_zone_params *tzp;
+ u32 prop;
/* Check whether child is enabled or not */
if (!of_device_is_available(child))
@@ -892,6 +893,9 @@
/* No hwmon because there might be hwmon drivers registering */
tzp->no_hwmon = true;
+ if (!of_property_read_u32(child, "sustainable-power", &prop))
+ tzp->sustainable_power = prop;
+
zone = thermal_zone_device_register(child->name, tz->ntrips,
0, tz,
ops, tzp,