thermal: Add devfreq cooling

[mirror_ubuntu-artful-kernel.git] / drivers / thermal / Kconfig

diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 5aabc4bc0d757fb0d7f423663867c8b634797a97..90629f69bb22069f4b8f3a13084376f6234bc4c2 100644 (file)
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -147,6 +147,20 @@ config CLOCK_THERMAL
          device that is configured to use this cooling mechanism will be
          controlled to reduce clock frequency whenever temperature is high.
 
+config DEVFREQ_THERMAL
+       bool "Generic device cooling support"
+       depends on PM_DEVFREQ
+       depends on PM_OPP
+       help
+         This implements the generic devfreq cooling mechanism through
+         frequency reduction for devices using devfreq.
+
+         This will throttle the device by limiting the maximum allowed DVFS
+         frequency corresponding to the cooling level.
+
+         In order to use the power extensions of the cooling device,
+         devfreq should use the simple_ondemand governor.
+
          If you want this support, you should say Y here.
 
 config THERMAL_EMULATION