[PATCH] clk: Make the generic clock API available by default

Mark Brown
2012-08-28T20:35:37Z

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@opensource.wolfsonmicro.com>
---

This depends on having one of the patches I've sent adding a generic
clkdev.h added merged - Arnd was expecting to merge one of those, there
was just the lack of clarity about the most practical Kbuild hookup.

arch/arm/Kconfig | 12 ++++++++++++
arch/avr32/Kconfig | 1 +
arch/mips/Kconfig | 4 ++++
arch/mips/loongson/Kconfig | 1 +
arch/mips/loongson1/Kconfig | 1 +
arch/mips/txx9/Kconfig | 1 +
arch/powerpc/Kconfig | 1 +
arch/unicore32/Kconfig | 1 +
drivers/clk/Kconfig | 13 ++++++++++---
9 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d4471d4..2a5633b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -330,6 +330,7 @@ config ARCH_VEXPRESS
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select HAVE_PATA_PLATFORM
select ICST
select NO_IOPORT
@@ -343,6 +344,7 @@ config ARCH_AT91
bool "Atmel AT91"
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select IRQ_DOMAIN
select NEED_MACH_IO_H if PCCARD
@@ -674,6 +676,7 @@ config ARCH_TEGRA
select GENERIC_CLOCKEVENTS
select GENERIC_GPIO
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select HAVE_SMP
select MIGHT_HAVE_CACHE_L2X0
select ARCH_HAS_CPUFREQ
@@ -732,6 +735,7 @@ config ARCH_PXA
config ARCH_MSM
bool "Qualcomm MSM"
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select GENERIC_CLOCKEVENTS
select ARCH_REQUIRE_GPIOLIB
select CLKDEV_LOOKUP
@@ -745,6 +749,7 @@ config ARCH_MSM
config ARCH_SHMOBILE
bool "Renesas SH-Mobile / R-Mobile"
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select HAVE_MACH_CLKDEV
select HAVE_SMP
@@ -798,6 +803,7 @@ config ARCH_S3C24XX
select GENERIC_GPIO
select ARCH_HAS_CPUFREQ
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select ARCH_USES_GETTIMEOFFSET
select HAVE_S3C2410_I2C if I2C
@@ -816,6 +822,7 @@ config ARCH_S3C64XX
select CPU_V6
select ARM_VIC
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select HAVE_TCM
select CLKDEV_LOOKUP
select NO_IOPORT
@@ -838,6 +845,7 @@ config ARCH_S5P64X0
select CPU_V6
select GENERIC_GPIO
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select HAVE_S3C2410_WATCHDOG if WATCHDOG
@@ -852,6 +860,7 @@ config ARCH_S5PC100
bool "Samsung S5PC100"
select GENERIC_GPIO
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select CPU_V7
select ARCH_USES_GETTIMEOFFSET
@@ -868,6 +877,7 @@ config ARCH_S5PV210
select ARCH_HAS_HOLES_MEMORYMODEL
select GENERIC_GPIO
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select ARCH_HAS_CPUFREQ
@@ -886,6 +896,7 @@ config ARCH_EXYNOS
select ARCH_HAS_HOLES_MEMORYMODEL
select GENERIC_GPIO
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select CLKDEV_LOOKUP
select ARCH_HAS_CPUFREQ
select GENERIC_CLOCKEVENTS
@@ -972,6 +983,7 @@ config ARCH_OMAP
bool "TI OMAP"
depends on MMU
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
select ARCH_REQUIRE_GPIOLIB
select ARCH_HAS_CPUFREQ
select CLKSRC_MMIO
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 641d067..27dfc99 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -84,6 +84,7 @@ 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.
@@ -96,6 +97,7 @@ 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
@@ -133,6 +135,7 @@ config BCM63XX
select SWAP_IO_SPACE
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
+ select HAVE_CUSTOM_CLK
help
Support for BCM63XX based boards

@@ -228,6 +231,7 @@ 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/loongson1/Kconfig b/arch/mips/loongson1/Kconfig
index a9a14d6..ddaa7d0 100644
--- a/arch/mips/loongson1/Kconfig
+++ b/arch/mips/loongson1/Kconfig
@@ -16,6 +16,7 @@ config LOONGSON1_LS1B
select SYS_SUPPORTS_HIGHMEM
select SYS_HAS_EARLY_PRINTK
select HAVE_CLK
+ select HAVE_CUSTOM_CLK

endchoice

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 58088dd..b7a611b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1013,6 +1013,7 @@ 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 5d53ffd..fe30bb1 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 7f0b5ca..e94fd06 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