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Date: Tue, 23 Oct 2012 10:54:08 +0100 From: Mark Brown <broonie@...nsource.wolfsonmicro.com> To: Mike Turquette <mturquette@...aro.org>, Russell King <linux@....linux.org.uk>, Guan Xuetao <gxt@...c.pku.edu.cn>, Ralf Baechle <ralf@...ux-mips.org> Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org, Mark Brown <broonie@...nsource.wolfsonmicro.com> Subject: [PATCH] clk: Make the generic clock API available by default Rather than requiring platforms to select the generic clock API to make it available make the API available as a user selectable option unless the user either selects HAVE_CUSTOM_CLK (if they have their own implementation) or selects COMMON_CLK (if they depend on the generic implementation). All current architectures that HAVE_CLK but don't use the common clock framework have selects of HAVE_CUSTOM_CLK added. This allows drivers to use the generic API on platforms which have no need for the clock API at platform level. Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com> Acked-by: Hans-Christian Egtvedt <egtvedt@...fundet.no> Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org> --- arch/arm/Kconfig | 12 ++++++++++++ arch/avr32/Kconfig | 1 + arch/mips/Kconfig | 4 ++++ arch/mips/loongson/Kconfig | 1 + arch/mips/txx9/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/unicore32/Kconfig | 1 + drivers/clk/Kconfig | 13 ++++++++++--- 8 files changed, 31 insertions(+), 3 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index fe90e60..ec7baca 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -314,6 +314,7 @@ config ARCH_VERSATILE select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_MACH_CLKDEV + select HAVE_CUSTOM_CLK select ICST select PLAT_VERSATILE select PLAT_VERSATILE_CLCD @@ -327,6 +328,7 @@ config ARCH_AT91 select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP select HAVE_CLK + select HAVE_CUSTOM_CLK select IRQ_DOMAIN select NEED_MACH_GPIO_H select NEED_MACH_IO_H if PCCARD @@ -666,6 +668,7 @@ config ARCH_MSM select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_CLK + select HAVE_CUSTOM_CLK help Support for Qualcomm MSM/QSD based systems. This runs on the apps processor of the MSM/QSD and depends on a shared memory @@ -678,6 +681,7 @@ config ARCH_SHMOBILE select CLKDEV_LOOKUP select GENERIC_CLOCKEVENTS select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_MACH_CLKDEV select HAVE_SMP select MIGHT_HAVE_CACHE_L2X0 @@ -728,10 +732,12 @@ config ARCH_SA1100 config ARCH_S3C24XX bool "Samsung S3C24XX SoCs" select ARCH_HAS_CPUFREQ + select CLKDEV_LOOKUP select ARCH_USES_GETTIMEOFFSET select CLKDEV_LOOKUP select GENERIC_GPIO select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS @@ -752,6 +758,7 @@ config ARCH_S3C64XX select CLKDEV_LOOKUP select CPU_V6 select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_TCM @@ -775,6 +782,7 @@ config ARCH_S5P64X0 select GENERIC_CLOCKEVENTS select GENERIC_GPIO select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS @@ -790,6 +798,7 @@ config ARCH_S5PC100 select CPU_V7 select GENERIC_GPIO select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS @@ -808,6 +817,7 @@ config ARCH_S5PV210 select GENERIC_CLOCKEVENTS select GENERIC_GPIO select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS @@ -826,6 +836,7 @@ config ARCH_EXYNOS select GENERIC_CLOCKEVENTS select GENERIC_GPIO select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG select HAVE_S3C_RTC if RTC_CLASS @@ -928,6 +939,7 @@ config ARCH_OMAP select CLKSRC_MMIO select GENERIC_CLOCKEVENTS select HAVE_CLK + select HAVE_CUSTOM_CLK select NEED_MACH_GPIO_H help Support for TI's OMAP platform (OMAP1/2/3/4). diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 06e73bf..bfeb9cc 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -4,6 +4,7 @@ config AVR32 # that we usually don't need on AVR32. select EXPERT select HAVE_CLK + select HAVE_CUSTOM_CLK select HAVE_OPROFILE select HAVE_KPROBES select HAVE_GENERIC_HARDIRQS diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index ce6c9a6..e0be02f 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -85,6 +85,7 @@ config AR7 select ARCH_REQUIRE_GPIOLIB select VLYNQ select HAVE_CLK + select HAVE_CUSTOM_CLK help Support for the Texas Instruments AR7 System-on-a-Chip family: TNETD7100, 7200 and 7300. @@ -97,6 +98,7 @@ config ATH79 select CSRC_R4K select DMA_NONCOHERENT select HAVE_CLK + select HAVE_CUSTOM_CLK select IRQ_CPU select MIPS_MACHINE select SYS_HAS_CPU_MIPS32_R2 @@ -134,6 +136,7 @@ config BCM63XX select SWAP_IO_SPACE select ARCH_REQUIRE_GPIOLIB select HAVE_CLK + select HAVE_CUSTOM_CLK help Support for BCM63XX based boards @@ -229,6 +232,7 @@ config MACH_JZ4740 select SYS_HAS_EARLY_PRINTK select HAVE_PWM select HAVE_CLK + select HAVE_CUSTOM_CLK select GENERIC_IRQ_CHIP config LANTIQ diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig index 263beb9..ed42be1 100644 --- a/arch/mips/loongson/Kconfig +++ b/arch/mips/loongson/Kconfig @@ -42,6 +42,7 @@ config LEMOTE_MACH2F select DMA_NONCOHERENT select GENERIC_ISA_DMA_SUPPORT_BROKEN select HAVE_CLK + select HAVE_CUSTOM_CLK select HW_HAS_PCI select I8259 select IRQ_CPU diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig index 6d40bc7..04e3cdb 100644 --- a/arch/mips/txx9/Kconfig +++ b/arch/mips/txx9/Kconfig @@ -21,6 +21,7 @@ config MACH_TXX9 select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_BIG_ENDIAN select HAVE_CLK + select HAVE_CUSTOM_CLK config TOSHIBA_JMR3927 bool "Toshiba JMR-TX3927 board" diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 5af5aa7..da4ea6c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -1028,6 +1028,7 @@ config PPC_CLOCK bool default n select HAVE_CLK + select HAVE_CUSTOM_CLK config PPC_LIB_RHEAP bool diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index fda37c9..8247d69 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -89,6 +89,7 @@ config ARCH_PUV3 select CPU_UCV2 select GENERIC_CLOCKEVENTS select HAVE_CLK + select HAVE_CUSTOM_CLK select ARCH_REQUIRE_GPIOLIB select ARCH_HAS_CPUFREQ diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index bace9e9..8dc8391 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -9,16 +9,23 @@ config HAVE_CLK_PREPARE config HAVE_MACH_CLKDEV bool -config COMMON_CLK +config HAVE_CUSTOM_CLK bool + ---help--- + Architectures which provide a custom clk API should select + this to disable the common clock API. + +config COMMON_CLK + bool "Common clock framework" + depends on !HAVE_CUSTOM_CLK select HAVE_CLK_PREPARE select CLKDEV_LOOKUP ---help--- The common clock framework is a single definition of struct clk, useful across many platforms, as well as an implementation of the clock API in include/linux/clk.h. - Architectures utilizing the common struct clk should select - this option. + This provides a generic way for drivers to provide and use + clocks without hard coded relationships in the drivers. menu "Common Clock Framework" depends on COMMON_CLK -- 1.7.10.4 -- 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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