Commit 9483a578 authored by David Brownell's avatar David Brownell Committed by Linus Torvalds
Browse files

add HAVE_CLK to Kconfig, for driver dependencies 



Flag platforms as HAVE_CLK (or not) in Kconfig, based on whether they
support <linux/clk.h> calls, so that otherwise portable drivers which need
those calls can list that dependency.

Something like this is a prerequisite for merging the musb_hdrc driver,
currently used on platforms including Davinci, OMAP2430, OMAP3xx ...  and
the discrete TUSB6010 chip, which doesn't have a natural platform
dependency.  (Used with OMAP 2420 in current Nokia N8x0 tablets.)

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: default avatarHaavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d7ce20b2

arch/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -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.

arch/arm/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -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

arch/avr32/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -843,6 +843,7 @@ source "crypto/Kconfig" 
config PPC_CLOCK

	bool

	default n

	select HAVE_CLK



config PPC_LIB_RHEAP

	bool

arch/sh/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -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

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