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menuconfig updates for cpuidle

PATCH In review Rajendra Nayak 1 participant 1 message Jul 1, 2008

Subsystems (2)
Arm (32-bit) CPU idle time management framework
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Rajendra Nayak

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PATCH 3/11 menuconfig updates for cpuidle

This patch enables the cpuidle option in menuconfig and selects the menu governor

Signed-off-by Rajendra Nayak <[email protected]>
---
 arch/arm/Kconfig        |   10 ++++++++++
 drivers/cpuidle/Kconfig |   26 +++++++++++++++++++++-----
 2 files changed, 31 insertions(+), 5 deletions(-)
arch/arm/Kconfig +10 -0
Index: linux-omap-2.6/arch/arm/Kconfig
===================================================================
@@ -954,6 +954,16 @@ config ATAGS_PROC
 
 endmenu
 
+if (ARCH_OMAP)
+
+menu "CPUIdle"
+
+source "drivers/cpuidle/Kconfig"
+
+endmenu
+
+endif
+
 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
 
 menu "CPU Frequency scaling"
drivers/cpuidle/Kconfig +21 -5
Index: linux-omap-2.6/drivers/cpuidle/Kconfig
===================================================================
@@ -1,20 +1,36 @@
+menu "CPU idle PM support"
 
 config CPU_IDLE
 	bool "CPU idle PM support"
-	default ACPI
+	default y
 	help
 	  CPU idle is a generic framework for supporting software-controlled
 	  idle processor power management.  It includes modular cross-platform
 	  governors that can be swapped during runtime.
 
-	  If you're using an ACPI-enabled platform, you should say Y here.
+	  If you're using a mobile platform that supports CPU idle PM (e.g.
+	  an ACPI-capable notebook), you should say Y here.
+
+if CPU_IDLE
+
+comment "Governors"
 
 config CPU_IDLE_GOV_LADDER
-	bool
+	bool "ladder"
 	depends on CPU_IDLE
-	default y
+	default n
 
 config CPU_IDLE_GOV_MENU
-	bool
+	bool "menu"
 	depends on CPU_IDLE && NO_HZ
 	default y
+        help
+	  This cpuidle governor evaluates all available states and chooses the
+	  deepest state that meets all of the following constraints: BM activity,
+	  expected time until next timer interrupt, and last break event time
+	  delta.  It is designed to minimize power consumption.  Currently
+	  dynticks is required.
+
+endif   # CPU_IDLE
+
+endmenu