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Message-Id: <200805291156.51933.david-b@pacbell.net> Date: Thu, 29 May 2008 11:56:51 -0700 From: David Brownell <david-b@...bell.net> To: lkml <linux-kernel@...r.kernel.org> Cc: Andrew Morton <akpm@...ux-foundation.org>, Greg KH <greg@...ah.com>, Felipe Balbi <felipebalbi@...rs.sourceforge.net> Subject: [patch 2.6.26-rc4] add HAVE_CLK to Kconfig, for driver dependencies From: David Brownell <dbrownell@...rs.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@...rs.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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