diff --git a/arch/Kconfig b/arch/Kconfig
index ad89a33d8c6ef66acb166e49fa423659e18afc9c..4d5ebbc1e72b376afbdece5e001644a49a11ebe8 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -42,3 +42,10 @@ config HAVE_DMA_ATTRS
 
 config USE_GENERIC_SMP_HELPERS
 	def_bool n
+
+config HAVE_CLK
+	def_bool n
+	help
+	  The <linux/clk.h> calls support software clock gating and
+	  thus are a key power management tool on many systems.
+
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d048f6887d0b0aff8e882283923c9a3640a6a816..6fb4f03369f2715271d5a706ce32d9a4d4990529 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -198,12 +198,14 @@ choice
 config ARCH_AAEC2000
 	bool "Agilent AAEC-2000 based"
 	select ARM_AMBA
+	select HAVE_CLK
 	help
 	  This enables support for systems based on the Agilent AAEC-2000
 
 config ARCH_INTEGRATOR
 	bool "ARM Ltd. Integrator family"
 	select ARM_AMBA
+	select HAVE_CLK
 	select ICST525
 	help
 	  Support for ARM's Integrator platform.
@@ -211,6 +213,7 @@ config ARCH_INTEGRATOR
 config ARCH_REALVIEW
 	bool "ARM Ltd. RealView family"
 	select ARM_AMBA
+	select HAVE_CLK
 	select ICST307
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
@@ -221,6 +224,7 @@ config ARCH_VERSATILE
 	bool "ARM Ltd. Versatile family"
 	select ARM_AMBA
 	select ARM_VIC
+	select HAVE_CLK
 	select ICST307
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
@@ -262,6 +266,8 @@ config ARCH_EP93XX
 	select ARM_AMBA
 	select ARM_VIC
 	select GENERIC_GPIO
+	select HAVE_CLK
+	select HAVE_CLK
 	select HAVE_GPIO_LIB
 	help
 	  This enables support for the Cirrus EP93xx series of CPUs.
@@ -381,6 +387,7 @@ config ARCH_NS9XXX
 	select GENERIC_GPIO
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
+	select HAVE_CLK
 	help
 	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 	  System.
@@ -430,6 +437,7 @@ config ARCH_ORION5X
 
 config ARCH_PNX4008
 	bool "Philips Nexperia PNX4008 Mobile"
+	select HAVE_CLK
 	help
 	  This enables support for Philips PNX4008 mobile platform.
 
@@ -438,6 +446,7 @@ config ARCH_PXA
 	depends on MMU
 	select ARCH_MTD_XIP
 	select GENERIC_GPIO
+	select HAVE_CLK
 	select HAVE_GPIO_LIB
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
@@ -468,6 +477,7 @@ config ARCH_SA1100
 	select GENERIC_GPIO
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
+	select HAVE_CLK
 	select TICK_ONESHOT
 	select HAVE_GPIO_LIB
 	help
@@ -476,6 +486,7 @@ config ARCH_SA1100
 config ARCH_S3C2410
 	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 	select GENERIC_GPIO
+	select HAVE_CLK
 	help
 	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
@@ -503,12 +514,14 @@ config ARCH_DAVINCI
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_GPIO
+	select HAVE_CLK
 	help
 	  Support for TI's DaVinci platform.
 
 config ARCH_OMAP
 	bool "TI OMAP"
 	select GENERIC_GPIO
+	select HAVE_CLK
 	select HAVE_GPIO_LIB
 	select GENERIC_TIME
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 45d63c9860150fd70d566b8a032ccebda568f954..df4adefedb422696bc71f853ea0290e1bee81d86 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -10,6 +10,7 @@ config AVR32
 	# With EMBEDDED=n, we get lots of stuff automatically selected
 	# that we usually don't need on AVR32.
 	select EMBEDDED
+	select HAVE_CLK
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
 	help
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 737ebf9d12bb9aca170de68098c758f796d46b0f..4d7e2ba10bae187761eef84344c6ad498cfaf8a7 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -843,6 +843,7 @@ source "crypto/Kconfig"
 config PPC_CLOCK
 	bool
 	default n
+	select HAVE_CLK
 
 config PPC_LIB_RHEAP
 	bool
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 3e7384f4619c9cd97002fd7264240aa69c7ba3ff..8879938f33566f0de6eb07b7e3bf1ba78f6afa3f 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -8,6 +8,7 @@ mainmenu "Linux/SuperH Kernel Configuration"
 config SUPERH
 	def_bool y
 	select EMBEDDED
+	select HAVE_CLK
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	help