X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fdevfreq%2FKconfig;h=8f0491037080df38856b76ec73db77cf18d3320f;hb=refs%2Fheads%2Fpandora-3.2-c64_tools;hp=643b055ed3cdc619d07166e8eaa84b2f849252df;hpb=daedd8708fe7707ed651bb1c83162f25c48a947c;p=pandora-kernel.git

diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 643b055ed3cd..8f0491037080 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -1,36 +1,29 @@
-config ARCH_HAS_DEVFREQ
-	bool
-	depends on ARCH_HAS_OPP
-	help
-	  Denotes that the architecture supports DEVFREQ. If the architecture
-	  supports multiple OPP entries per device and the frequency of the
-	  devices with OPPs may be altered dynamically, the architecture
-	  supports DEVFREQ.
-
 menuconfig PM_DEVFREQ
 	bool "Generic Dynamic Voltage and Frequency Scaling (DVFS) support"
-	depends on PM_OPP && ARCH_HAS_DEVFREQ
 	help
-	  With OPP support, a device may have a list of frequencies and
-	  voltages available. DEVFREQ, a generic DVFS framework can be
-	  registered for a device with OPP support in order to let the
-	  governor provided to DEVFREQ choose an operating frequency
-	  based on the OPP's list and the policy given with DEVFREQ.
+	  A device may have a list of frequencies and voltages available.
+	  devfreq, a generic DVFS framework can be registered for a device
+	  in order to let the governor provided to devfreq choose an
+	  operating frequency based on the device driver's policy.
 
-	  Each device may have its own governor and policy. DEVFREQ can
+	  Each device may have its own governor and policy. Devfreq can
 	  reevaluate the device state periodically and/or based on the
-	  OPP list changes (each frequency/voltage pair in OPP may be
-	  disabled or enabled).
+	  notification to "nb", a notifier block, of devfreq.
 
-	  Like some CPUs with CPUFREQ, a device may have multiple clocks.
+	  Like some CPUs with CPUfreq, a device may have multiple clocks.
 	  However, because the clock frequencies of a single device are
-	  determined by the single device's state, an instance of DEVFREQ
+	  determined by the single device's state, an instance of devfreq
 	  is attached to a single device and returns a "representative"
-	  clock frequency from the OPP of the device, which is also attached
-	  to a device by 1-to-1. The device registering DEVFREQ takes the
-	  responsiblity to "interpret" the frequency listed in OPP and
+	  clock frequency of the device, which is also attached
+	  to a device by 1-to-1. The device registering devfreq takes the
+	  responsiblity to "interpret" the representative frequency and
 	  to set its every clock accordingly with the "target" callback
-	  given to DEVFREQ.
+	  given to devfreq.
+
+	  When OPP is used with the devfreq device, it is recommended to
+	  register devfreq's nb to the OPP's notifier head.  If OPP is
+	  used with the devfreq device, you may use OPP helper
+	  functions defined in devfreq.h.
 
 if PM_DEVFREQ