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Subject[patch 2.6.26-rc4] add HAVE_CLK to Kconfig, for driver dependencies
Date
From: David Brownell <dbrownell@users.sourceforge.net>

This patch flags platforms as HAVE_CLK (or not) in Kconfig,
so that otherwise portable drivers which need those calls
can list that dependency.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
---
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.)

arch/Kconfig | 7 +++++++
arch/arm/Kconfig | 13 +++++++++++++
arch/avr32/Kconfig | 1 +
arch/powerpc/Kconfig | 1 +
arch/sh/Kconfig | 1 +
5 files changed, 23 insertions(+)

--- a/arch/Kconfig 2008-04-29 12:29:26.000000000 -0700
+++ b/arch/Kconfig 2008-05-29 11:33:32.000000000 -0700
@@ -39,3 +39,10 @@ config HAVE_KRETPROBES

config HAVE_DMA_ATTRS
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.
+
--- a/arch/arm/Kconfig 2008-05-27 15:38:15.000000000 -0700
+++ b/arch/arm/Kconfig 2008-05-29 11:38:24.000000000 -0700
@@ -183,12 +183,14 @@ 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.
@@ -196,6 +198,7 @@ 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
@@ -206,6 +209,7 @@ 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
@@ -215,6 +219,7 @@ config ARCH_VERSATILE
config ARCH_AT91
bool "Atmel AT91"
select GENERIC_GPIO
+ select HAVE_CLK
select HAVE_GPIO_LIB
help
This enables support for systems based on the Atmel AT91RM9200,
@@ -255,6 +260,7 @@ config ARCH_EP93XX
select ARM_AMBA
select ARM_VIC
select GENERIC_GPIO
+ select HAVE_CLK
select HAVE_GPIO_LIB
help
This enables support for the Cirrus EP93xx series of CPUs.
@@ -360,6 +366,7 @@ 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.
@@ -386,6 +393,7 @@ config ARCH_ORION5X

config ARCH_PNX4008
bool "Philips Nexperia PNX4008 Mobile"
+ select HAVE_CLK
help
This enables support for Philips PNX4008 mobile platform.

@@ -394,6 +402,7 @@ 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
@@ -423,6 +432,7 @@ config ARCH_SA1100
select GENERIC_GPIO
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
+ select HAVE_CLK
select TICK_ONESHOT
select HAVE_GPIO_LIB
help
@@ -431,6 +441,7 @@ 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
@@ -458,12 +469,14 @@ 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
--- a/arch/avr32/Kconfig 2008-05-29 11:40:42.000000000 -0700
+++ b/arch/avr32/Kconfig 2008-05-29 11:41:08.000000000 -0700
@@ -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
--- a/arch/powerpc/Kconfig 2008-05-29 11:45:49.000000000 -0700
+++ b/arch/powerpc/Kconfig 2008-05-29 11:45:57.000000000 -0700
@@ -812,6 +812,7 @@ source "crypto/Kconfig"
config PPC_CLOCK
bool
default n
+ select HAVE_CLK

config PPC_LIB_RHEAP
bool
--- a/arch/sh/Kconfig 2008-05-29 11:42:32.000000000 -0700
+++ b/arch/sh/Kconfig 2008-05-29 11:42:42.000000000 -0700
@@ -8,6 +8,7 @@ mainmenu "Linux/SuperH Kernel Configurat
config SUPERH
def_bool y
select EMBEDDED
+ select HAVE_CLK
select HAVE_IDE
select HAVE_OPROFILE
help

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