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83fe27ea53
SRCU is not necessary to be compiled by default in all cases. For tinification efforts not compiling SRCU unless necessary is desirable. The current patch tries to make compiling SRCU optional by introducing a new Kconfig option CONFIG_SRCU which is selected when any of the components making use of SRCU are selected. If we do not select CONFIG_SRCU, srcu.o will not be compiled at all. text data bss dec hex filename 2007 0 0 2007 7d7 kernel/rcu/srcu.o Size of arch/powerpc/boot/zImage changes from text data bss dec hex filename 831552 64180 23944 919676 e087c arch/powerpc/boot/zImage : before 829504 64180 23952 917636 e0084 arch/powerpc/boot/zImage : after so the savings are about ~2000 bytes. Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CC: Josh Triplett <josh@joshtriplett.org> CC: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> [ paulmck: resolve conflict due to removal of arch/ia64/kvm/Kconfig. ]
146 lines
3.9 KiB
Plaintext
146 lines
3.9 KiB
Plaintext
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config CLKDEV_LOOKUP
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bool
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select HAVE_CLK
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config HAVE_CLK_PREPARE
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bool
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config HAVE_MACH_CLKDEV
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bool
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config COMMON_CLK
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bool
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select HAVE_CLK_PREPARE
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select CLKDEV_LOOKUP
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select SRCU
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---help---
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The common clock framework is a single definition of struct
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clk, useful across many platforms, as well as an
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implementation of the clock API in include/linux/clk.h.
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Architectures utilizing the common struct clk should select
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this option.
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menu "Common Clock Framework"
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depends on COMMON_CLK
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config COMMON_CLK_WM831X
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tristate "Clock driver for WM831x/2x PMICs"
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depends on MFD_WM831X
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---help---
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Supports the clocking subsystem of the WM831x/2x series of
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PMICs from Wolfson Microelectronics.
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source "drivers/clk/versatile/Kconfig"
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config COMMON_CLK_MAX_GEN
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bool
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config COMMON_CLK_MAX77686
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tristate "Clock driver for Maxim 77686 MFD"
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depends on MFD_MAX77686
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select COMMON_CLK_MAX_GEN
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---help---
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This driver supports Maxim 77686 crystal oscillator clock.
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config COMMON_CLK_MAX77802
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tristate "Clock driver for Maxim 77802 PMIC"
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depends on MFD_MAX77686
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select COMMON_CLK_MAX_GEN
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---help---
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This driver supports Maxim 77802 crystal oscillator clock.
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config COMMON_CLK_RK808
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tristate "Clock driver for RK808"
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depends on MFD_RK808
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---help---
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This driver supports RK808 crystal oscillator clock. These
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multi-function devices have two fixed-rate oscillators,
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clocked at 32KHz each. Clkout1 is always on, Clkout2 can off
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by control register.
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config COMMON_CLK_SI5351
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tristate "Clock driver for SiLabs 5351A/B/C"
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depends on I2C
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select REGMAP_I2C
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select RATIONAL
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---help---
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This driver supports Silicon Labs 5351A/B/C programmable clock
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generators.
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config COMMON_CLK_SI570
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tristate "Clock driver for SiLabs 570 and compatible devices"
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depends on I2C
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depends on OF
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select REGMAP_I2C
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help
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---help---
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This driver supports Silicon Labs 570/571/598/599 programmable
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clock generators.
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config COMMON_CLK_S2MPS11
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tristate "Clock driver for S2MPS1X/S5M8767 MFD"
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depends on MFD_SEC_CORE
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---help---
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This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
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clock. These multi-function devices have two (S2MPS14) or three
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(S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
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config CLK_TWL6040
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tristate "External McPDM functional clock from twl6040"
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depends on TWL6040_CORE
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---help---
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Enable the external functional clock support on OMAP4+ platforms for
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McPDM. McPDM module is using the external bit clock on the McPDM bus
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as functional clock.
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config COMMON_CLK_AXI_CLKGEN
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tristate "AXI clkgen driver"
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depends on ARCH_ZYNQ || MICROBLAZE
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help
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---help---
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Support for the Analog Devices axi-clkgen pcore clock generator for Xilinx
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FPGAs. It is commonly used in Analog Devices' reference designs.
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config CLK_PPC_CORENET
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bool "Clock driver for PowerPC corenet platforms"
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depends on PPC_E500MC && OF
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---help---
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This adds the clock driver support for Freescale PowerPC corenet
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platforms using common clock framework.
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config COMMON_CLK_XGENE
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bool "Clock driver for APM XGene SoC"
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default y
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depends on ARM64
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---help---
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Sypport for the APM X-Gene SoC reference, PLL, and device clocks.
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config COMMON_CLK_KEYSTONE
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tristate "Clock drivers for Keystone based SOCs"
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depends on ARCH_KEYSTONE && OF
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---help---
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Supports clock drivers for Keystone based SOCs. These SOCs have local
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a power sleep control module that gate the clock to the IPs and PLLs.
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config COMMON_CLK_PALMAS
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tristate "Clock driver for TI Palmas devices"
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depends on MFD_PALMAS
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---help---
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This driver supports TI Palmas devices 32KHz output KG and KG_AUDIO
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using common clock framework.
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config COMMON_CLK_PXA
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def_bool COMMON_CLK && ARCH_PXA
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---help---
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Sypport for the Marvell PXA SoC.
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source "drivers/clk/qcom/Kconfig"
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endmenu
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source "drivers/clk/bcm/Kconfig"
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source "drivers/clk/mvebu/Kconfig"
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source "drivers/clk/samsung/Kconfig"
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