# SPDX-License-Identifier: GPL-2.0
config HAVE_CLK
bool
help
The <linux/clk.h> calls support software clock gating and
thus are a key power management tool on many systems.
config CLKDEV_LOOKUP
bool
select HAVE_CLK
config HAVE_CLK_PREPARE
bool
config HAVE_LEGACY_CLK # TODO: Remove once all legacy users are migrated
bool
select HAVE_CLK
help
Select this option when the clock API in <linux/clk.h> is implemented
by platform/architecture code. This method is deprecated. Modern
code should select COMMON_CLK instead and not define a custom
'struct clk'.
menuconfig COMMON_CLK
bool "Common Clock Framework"
depends on !HAVE_LEGACY_CLK
select HAVE_CLK_PREPARE
select CLKDEV_LOOKUP
select SRCU
select RATIONAL
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.
if COMMON_CLK
config COMMON_CLK_WM831X
tristate "Clock driver for WM831x/2x PMICs"
depends on MFD_WM831X
help
Supports the clocking subsystem of the WM831x/2x series of
PMICs from Wolfson Microelectronics.
source "drivers/clk/versatile/Kconfig"
config CLK_HSDK
bool "PLL Driver for HSDK platform"
depends on OF || COMPILE_TEST
depends on HAS_IOMEM
help
This driver supports the HSDK core, system, ddr, tunnel and hdmi PLLs
control.
config COMMON_CLK_MAX77686
tristate "Clock driver for Maxim 77620/77686/77802 MFD"
depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST
help
This driver supports Maxim 77620/77686/77802 crystal oscillator
clock.
config COMMON_CLK_MAX9485
tristate "Maxim 9485 Programmable Clock Generator"
depends on I2C
help
This driver supports Maxim 9485 Programmable Audio Clock Generator
config COMMON_CLK_RK808
tristate "Clock driver for RK805/RK808/RK809/RK817/RK818"
depends on MFD_RK808
help
This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock.
These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
Clkout1 is always on, Clkout2 can off by control register.
config COMMON_CLK_HI655X
tristate "Clock driver for Hi655x" if EXPERT
depends on (MFD_HI655X_PMIC || COMPILE_TEST)
depends on REGMAP
default MFD_HI655X_PMIC
help
This driver supports the hi655x PMIC clock. This
multi-function device has one fixed-rate oscillator, clocked
at 32KHz.
config COMMON_CLK_SCMI
tristate "Clock driver controlled via SCMI interface"
depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
help
This driver provides support for clocks that are controlled
by firmware that implements the SCMI interface.
This driver uses SCMI Message Protocol to interact with the
firmware providing all the clock controls.
config COMMON_CLK_SCPI
tristate "Clock driver controlled via SCPI interface"
depends on ARM_SCPI_PROTOCOL || COMPILE_TEST
help
This driver provides support for clocks that are controlled
by firmware that implements the SCPI interface.
This driver uses SCPI Message Protocol to interact with the
firmware providing all the clock controls.
config COMMON_CLK_SI5341
tristate "Clock driver for SiLabs 5341 and 5340 A/B/C/D devices"
depends on I2C
select REGMAP_I2C
help
This driver supports Silicon Labs Si5341 and Si5340 programmable clock
generators. Not all features of these chips are currently supported
by the driver, in particular it only supports XTAL input. The chip can
be pre-programmed to support other configurations and features not yet
implemented in the driver.
config COMMON_CLK_SI5351
tristate "Clock driver for SiLabs 5351A/B/C"
depends on I2C
select REGMAP_I2C
help
This driver supports Silicon Labs 5351A/B/C programmable clock
generators.
config COMMON_CLK_SI514
tristate "Clock driver for SiLabs 514 devices"
depends on I2C
depends on OF
select REGMAP_I2C
help
This driver supports the Silicon Labs 514 programmable clock
generator.
config COMMON_CLK_SI544
tristate "Clock driver for SiLabs 544 devices"
depends on I2C
select REGMAP_I2C
help
This driver supports the Silicon Labs 544 programmable clock
generator.
config COMMON_CLK_SI570
tristate "Clock driver for SiLabs 570 and compatible devices"
depends on I2C
depends on OF
select REGMAP_I2C
help
This driver supports Silicon Labs 570/571/598/599 programmable
clock generators.
config COMMON_CLK_BM1880
bool "Clock driver for Bitmain BM1880 SoC"
depends on ARCH_BITMAIN || COMPILE_TEST
default ARCH_BITMAIN
help
This driver supports the clocks on Bitmain BM1880 SoC.
config COMMON_CLK_CDCE706
tristate "Clock driver for TI CDCE706 clock synthesizer"
depends on I2C
select REGMAP_I2C
help
This driver supports TI CDCE706 programmable 3-PLL clock synthesizer.
config COMMON_CLK_CDCE925
tristate "Clock driver for TI CDCE913/925/937/949 devices"
depends on I2C
depends on OF
select REGMAP_I2C
help
This driver supports the TI CDCE913/925/937/949 programmable clock
synthesizer. Each chip has different number of PLLs and outputs.
For example, the CDCE925 contains two PLLs with spread-spectrum
clocking support and five output dividers. The driver only supports
the following setup, and uses a fixed setting for the output muxes.
Y1 is derived from the input clock
Y2 and Y3 derive from PLL1
Y4 and Y5 derive from PLL2
Given a target output frequency, the driver will set the PLL and
divider to best approximate the desired output.
config COMMON_CLK_CS2000_CP
tristate "Clock driver for CS2000 Fractional-N Clock Synthesizer & Clock Multiplier"
depends on I2C
help
If you say yes here you get support for the CS2000 clock multiplier.
config COMMON_CLK_FSL_SAI
bool "Clock driver for BCLK of Freescale SAI cores"
depends on ARCH_LAYERSCAPE || COMPILE_TEST
help
This driver supports the Freescale SAI (Synchronous Audio Interface)
to be used as a generic clock output. Some SoCs have restrictions
regarding the possible pin multiplexer settings. Eg. on some SoCs
two SAI interfaces can only be enabled together. If just one is
needed, the BCLK pin of the second one can be used as general
purpose clock output. Ideally, it can be used to drive an audio
codec (sometimes known as MCLK).
config COMMON_CLK_GEMINI
bool "Clock driver for Cortina Systems Gemini SoC"
depends on ARCH_GEMINI || COMPILE_TEST
select MFD_SYSCON
select RESET_CONTROLLER
help
This driver supports the SoC clocks on the Cortina Systems Gemini
platform, also known as SL3516 or CS3516.
config COMMON_CLK_ASPEED
bool "Clock driver for Aspeed BMC SoCs"
depends on ARCH_ASPEED || COMPILE_TEST
default ARCH_ASPEED
select MFD_SYSCON
select RESET_CONTROLLER
help
This driver supports the SoC clocks on the Aspeed BMC platforms.
The G4 and G5 series, including the ast2400 and ast2500, are supported
by this driver.
config COMMON_CLK_S2MPS11
tristate "Clock driver for S2MPS1X/S5M8767 MFD"
depends on MFD_SEC_CORE || COMPILE_TEST
help
This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
clock. These multi-function devices have two (S2MPS14) or three
(S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
config CLK_TWL6040
tristate "External McPDM functional clock from twl6040"
depends on TWL6040_CORE
help
Enable the external functional clock support on OMAP4+ platforms for
McPDM. McPDM module is using the external bit clock on the McPDM bus
as functional clock.
config COMMON_CLK_AXI_CLKGEN
tristate "AXI clkgen driver"
depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST
help
Support for the Analog Devices axi-clkgen pcore clock generator for Xilinx
FPGAs. It is commonly used in Analog Devices' reference designs.
config CLK_QORIQ
bool "Clock driver for Freescale QorIQ platforms"
depends on (PPC_E500MC || ARM || ARM64 || COMPILE_TEST) && OF
help
This adds the clock driver support for Freescale QorIQ platforms
using common clock framework.
config CLK_LS1028A_PLLDIG
tristate "Clock driver for LS1028A Display output"
depends on ARCH_LAYERSCAPE || COMPILE_TEST
default ARCH_LAYERSCAPE
help
This driver support the Display output interfaces(LCD, DPHY) pixel clocks
of the QorIQ Layerscape LS1028A, as implemented TSMC CLN28HPM PLL. Not all
features of the PLL are currently supported by the driver. By default,
configured bypass mode with this PLL.
config COMMON_CLK_XGENE
bool "Clock driver for APM XGene SoC"
default ARCH_XGENE
depends on ARM64 || COMPILE_TEST
help
Support for the APM X-Gene SoC reference, PLL, and device clocks.
config COMMON_CLK_LOCHNAGAR
tristate "Cirrus Logic Lochnagar clock driver"
depends on MFD_LOCHNAGAR
help
This driver supports the clocking features of the Cirrus Logic
Lochnagar audio development board.
config COMMON_CLK_NXP
def_bool COMMON_CLK && (ARCH_LPC18XX || ARCH_LPC32XX)
select REGMAP_MMIO if ARCH_LPC32XX
select MFD_SYSCON if ARCH_LPC18XX
help
Support for clock providers on NXP platforms.
config COMMON_CLK_PALMAS
tristate "Clock driver for TI Palmas devices"
depends on MFD_PALMAS
help
This driver supports TI Palmas devices 32KHz output KG and KG_AUDIO
using common clock framework.
config COMMON_CLK_PWM
tristate "Clock driver for PWMs used as clock outputs"
depends on PWM
help
Adapter driver so that any PWM output can be (mis)used as clock signal
at 50% duty cycle.
config COMMON_CLK_PXA
def_bool COMMON_CLK && ARCH_PXA
help
Support for the Marvell PXA SoC.
config COMMON_CLK_PIC32
def_bool COMMON_CLK && MACH_PIC32
config COMMON_CLK_OXNAS
bool "Clock driver for the OXNAS SoC Family"
depends on ARCH_OXNAS || COMPILE_TEST
select MFD_SYSCON
help
Support for the OXNAS SoC Family clocks.
config COMMON_CLK_VC5
tristate "Clock driver for IDT VersaClock 5,6 devices"
depends on I2C
depends on OF
select REGMAP_I2C
help
This driver supports the IDT VersaClock 5 and VersaClock 6
programmable clock generators.
config COMMON_CLK_STM32MP157
def_bool COMMON_CLK && MACH_STM32MP157
help
Support for stm32mp157 SoC family clocks
config COMMON_CLK_STM32F
def_bool COMMON_CLK && (MACH_STM32F429 || MACH_STM32F469 || MACH_STM32F746)
help
Support for stm32f4 and stm32f7 SoC families clocks
config COMMON_CLK_STM32H7
def_bool COMMON_CLK && MACH_STM32H743
help
Support for stm32h7 SoC family clocks
config COMMON_CLK_MMP2
def_bool COMMON_CLK && (MACH_MMP2_DT || MACH_MMP3_DT)
help
Support for Marvell MMP2 and MMP3 SoC clocks
config COMMON_CLK_MMP2_AUDIO
tristate "Clock driver for MMP2 Audio subsystem"
depends on COMMON_CLK_MMP2 || COMPILE_TEST
help
This driver supports clocks for Audio subsystem on MMP2 SoC.
config COMMON_CLK_BD718XX
tristate "Clock driver for 32K clk gates on ROHM PMICs"
depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528 || MFD_ROHM_BD71828
help
This driver supports ROHM BD71837, ROHM BD71847, ROHM BD71828 and
ROHM BD70528 PMICs clock gates.
config COMMON_CLK_FIXED_MMIO
bool "Clock driver for Memory Mapped Fixed values"
depends on COMMON_CLK && OF
help
Support for Memory Mapped IO Fixed clocks
source "drivers/clk/actions/Kconfig"
source "drivers/clk/analogbits/Kconfig"
source "drivers/clk/baikal-t1/Kconfig"
source "drivers/clk/bcm/Kconfig"
source "drivers/clk/hisilicon/Kconfig"
source "drivers/clk/imgtec/Kconfig"
source "drivers/clk/imx/Kconfig"
source "drivers/clk/ingenic/Kconfig"
source "drivers/clk/keystone/Kconfig"
source "drivers/clk/mediatek/Kconfig"
source "drivers/clk/meson/Kconfig"
source "drivers/clk/mvebu/Kconfig"
source "drivers/clk/qcom/Kconfig"
source "drivers/clk/renesas/Kconfig"
source "drivers/clk/samsung/Kconfig"
source "drivers/clk/sifive/Kconfig"
source "drivers/clk/sprd/Kconfig"
source "drivers/clk/sunxi/Kconfig"
source "drivers/clk/sunxi-ng/Kconfig"
source "drivers/clk/tegra/Kconfig"
source "drivers/clk/ti/Kconfig"
source "drivers/clk/uniphier/Kconfig"
source "drivers/clk/x86/Kconfig"
source "drivers/clk/zynqmp/Kconfig"
endif
