path: root/drivers/gpio/Kconfig

#
# GPIO infrastructure and drivers
#

config ARCH_HAVE_CUSTOM_GPIO_H
	bool
	help
	  Selecting this config option from the architecture Kconfig allows
	  the architecture to provide a custom asm/gpio.h implementation
	  overriding the default implementations.  New uses of this are
	  strongly discouraged.

config ARCH_WANT_OPTIONAL_GPIOLIB
	bool
	help
	  Select this config option from the architecture Kconfig, if
	  it is possible to use gpiolib on the architecture, but let the
	  user decide whether to actually build it or not.
	  Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
	  not depend on GPIOs being available, but rather let the user
	  decide whether he needs it or not.

config ARCH_REQUIRE_GPIOLIB
	bool
	select GPIOLIB
	help
	  Platforms select gpiolib if they use this infrastructure
	  for all their GPIOs, usually starting with ones integrated
	  into SOC processors.
	  Selecting this from the architecture code will cause the gpiolib
	  code to always get built in.


menuconfig GPIOLIB
	bool "GPIO Support"
	depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
	help
	  This enables GPIO support through the generic GPIO library.
	  You only need to enable this, if you also want to enable
	  one or more of the GPIO drivers below.

	  If unsure, say N.

if GPIOLIB

config GPIO_DEVRES
	def_bool y
	depends on HAS_IOMEM

config OF_GPIO
	def_bool y
	depends on OF

config GPIO_ACPI
	def_bool y
	depends on ACPI

config GPIOLIB_IRQCHIP
	select IRQ_DOMAIN
	bool

config DEBUG_GPIO
	bool "Debug GPIO calls"
	depends on DEBUG_KERNEL
	help
	  Say Y here to add some extra checks and diagnostics to GPIO calls.
	  These checks help ensure that GPIOs have been properly initialized
	  before they are used, and that sleeping calls are not made from
	  non-sleeping contexts.  They can make bitbanged serial protocols
	  slower.  The diagnostics help catch the type of setup errors
	  that are most common when setting up new platforms or boards.

config GPIO_SYSFS
	bool "/sys/class/gpio/... (sysfs interface)"
	depends on SYSFS
	help
	  Say Y here to add a sysfs interface for GPIOs.

	  This is mostly useful to work around omissions in a system's
	  kernel support.  Those are common in custom and semicustom
	  hardware assembled using standard kernels with a minimum of
	  custom patches.  In those cases, userspace code may import
	  a given GPIO from the kernel, if no kernel driver requested it.

	  Kernel drivers may also request that a particular GPIO be
	  exported to userspace; this can be useful when debugging.

config GPIO_GENERIC
	tristate

# put drivers in the right section, in alphabetical order

config GPIO_DA9052
	tristate "Dialog DA9052 GPIO"
	depends on PMIC_DA9052
	help
	  Say yes here to enable the GPIO driver for the DA9052 chip.

config GPIO_DA9055
	tristate "Dialog Semiconductor DA9055 GPIO"
	depends on MFD_DA9055
	help
	  Say yes here to enable the GPIO driver for the DA9055 chip.

	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
	  be controller by this driver.

	  If driver is built as a module it will be called gpio-da9055.

config GPIO_MAX730X
	tristate

comment "Memory mapped GPIO drivers:"

config GPIO_CLPS711X
	tristate "CLPS711X GPIO support"
	depends on ARCH_CLPS711X || COMPILE_TEST
	select GPIO_GENERIC
	help
	  Say yes here to support GPIO on CLPS711X SoCs.

config GPIO_DAVINCI
	bool "TI Davinci/Keystone GPIO support"
	default y if ARCH_DAVINCI
	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
	help
	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.

config GPIO_GENERIC_PLATFORM
	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
	select GPIO_GENERIC
	help
	  Say yes here to support basic platform_device memory-mapped GPIO controllers.

config GPIO_DWAPB
	tristate "Synopsys DesignWare APB GPIO driver"
	select GPIO_GENERIC
	select GENERIC_IRQ_CHIP
	depends on OF_GPIO
	help
	  Say Y or M here to build support for the Synopsys DesignWare APB
	  GPIO block.

config GPIO_IT8761E
	tristate "IT8761E GPIO support"
	depends on X86  # unconditional access to IO space.
	help
	  Say yes here to support GPIO functionality of IT8761E super I/O chip.

config GPIO_EM
	tristate "Emma Mobile GPIO"
	depends on ARM && OF_GPIO
	help
	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.

config GPIO_EP93XX
	def_bool y
	depends on ARCH_EP93XX
	select GPIO_GENERIC

config GPIO_ZEVIO
	bool "LSI ZEVIO SoC memory mapped GPIOs"
	depends on ARM && OF_GPIO
	help
	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.

config GPIO_MM_LANTIQ
	bool "Lantiq Memory mapped GPIOs"
	depends on LANTIQ && SOC_XWAY
	help
	  This enables support for memory mapped GPIOs on the External Bus Unit
	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
	  created by attaching a 16bit latch to the bus.

config GPIO_F7188X
	tristate "F71882FG and F71889F GPIO support"
	depends on X86
	help
	  This option enables support for GPIOs found on Fintek Super-I/O
	  chips F71882FG and F71889F.

	  To compile this driver as a module, choose M here: the module will
	  be called f7188x-gpio.

config GPIO_MOXART
	bool "MOXART GPIO support"
	depends on ARCH_MOXART
	help
	  Select this option to enable GPIO driver for
	  MOXA ART SoC devices.

config GPIO_MPC5200
	def_bool y
	depends on PPC_MPC52xx

config GPIO_MPC8XXX
	bool "MPC512x/MPC8xxx GPIO support"
	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
		   FSL_SOC_BOOKE || PPC_86xx
	help
	  Say Y here if you're going to use hardware that connects to the
	  MPC512x/831x/834x/837x/8572/8610 GPIOs.

config GPIO_MSM_V1
	tristate "Qualcomm MSM GPIO v1"
	depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
	help
	  Say yes here to support the GPIO interface on ARM v6 based
	  Qualcomm MSM chips.  Most of the pins on the MSM can be
	  selected for GPIO, and are controlled by this driver.

config GPIO_MSM_V2
	tristate "Qualcomm MSM GPIO v2"
	depends on GPIOLIB && OF && ARCH_QCOM
	help
	  Say yes here to support the GPIO interface on ARM v7 based
	  Qualcomm MSM chips.  Most of the pins on the MSM can be
	  selected for GPIO, and are controlled by this driver.

config GPIO_MVEBU
	def_bool y
	depends on PLAT_ORION
	depends on OF
	select GPIO_GENERIC
	select GENERIC_IRQ_CHIP

config GPIO_MXC
	def_bool y
	depends on ARCH_MXC
	select GPIO_GENERIC
	select GENERIC_IRQ_CHIP

config GPIO_MXS
	def_bool y
	depends on ARCH_MXS
	select GPIO_GENERIC
	select GENERIC_IRQ_CHIP

config GPIO_OCTEON
	tristate "Cavium OCTEON GPIO"
	depends on GPIOLIB && CAVIUM_OCTEON_SOC
	default y
	help
	  Say yes here to support the on-chip GPIO lines on the OCTEON
	  family of SOCs.

config GPIO_OMAP
	bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
	default y if ARCH_OMAP
	depends on ARM
	select GENERIC_IRQ_CHIP
	select GPIOLIB_IRQCHIP
	help
	  Say yes here to enable GPIO support for TI OMAP SoCs.

config GPIO_PL061
	bool "PrimeCell PL061 GPIO support"
	depends on ARM_AMBA
	select IRQ_DOMAIN
	select GPIOLIB_IRQCHIP
	help
	  Say yes here to support the PrimeCell PL061 GPIO device

config GPIO_PXA
	bool "PXA GPIO support"
	depends on ARCH_PXA || ARCH_MMP
	help
	  Say yes here to support the PXA GPIO device

config GPIO_RCAR
	tristate "Renesas R-Car GPIO"
	depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
	help
	  Say yes here to support GPIO on Renesas R-Car SoCs.

config GPIO_SAMSUNG
	bool
	depends on PLAT_SAMSUNG
	help
	  Legacy GPIO support. Use only for platforms without support for
	  pinctrl.

config GPIO_SCH311X
	tristate "SMSC SCH311x SuperI/O GPIO"
	help
	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
	  SCH3116 "Super I/O" chipsets.

	  To compile this driver as a module, choose M here: the module will
	  be called gpio-sch311x.

config GPIO_SPEAR_SPICS
	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
	depends on PLAT_SPEAR
	select GENERIC_IRQ_CHIP
	help
	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device

config GPIO_STA2X11
	bool "STA2x11/ConneXt GPIO support"
	depends on MFD_STA2X11
	select GENERIC_IRQ_CHIP
	help
	  Say yes here to support the STA2x11/ConneXt GPIO device.
	  The GPIO module has 128 GPIO pins with alternate functions.

config GPIO_SYSCON
	tristate "GPIO based on SYSCON"
	depends on MFD_SYSCON && OF
	help
	  Say yes here to support GPIO functionality though SYSCON driver.

config GPIO_TS5500
	tristate "TS-5500 DIO blocks and compatibles"
	depends on TS5500 || COMPILE_TEST
	help
	  This driver supports Digital I/O exposed by pin blocks found on some
	  Technologic Systems platforms. It includes, but is not limited to, 3
	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
	  LCD port.

config GPIO_TZ1090
	bool "Toumaz Xenif TZ1090 GPIO support"
	depends on SOC_TZ1090
	select GENERIC_IRQ_CHIP
	default y
	help
	  Say yes here to support Toumaz Xenif TZ1090 GPIOs.

config GPIO_TZ1090_PDC
	bool "Toumaz Xenif TZ1090 PDC GPIO support"
	depends on SOC_TZ1090
	default y
	help
	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.

config GPIO_XILINX
	bool "Xilinx GPIO support"
	depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
	help
	  Say yes here to support the Xilinx FPGA GPIO device

config GPIO_XTENSA
	bool "Xtensa GPIO32 support"
	depends on XTENSA
	depends on HAVE_XTENSA_GPIO32
	depends on !SMP
	help
	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
	  and EXPSTATE (output) ports

config GPIO_VR41XX
	tristate "NEC VR4100 series General-purpose I/O Uint support"
	depends on CPU_VR41XX
	help
	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint

config GPIO_SCH