Kconfig 37.8 KB
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#
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# GPIO infrastructure and drivers
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#

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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.

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menuconfig GPIOLIB
	bool "GPIO Support"
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	select ANON_INODES
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	help
	  This enables GPIO support through the generic GPIO library.
	  You only need to enable this, if you also want to enable
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	  one or more of the GPIO drivers below.
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	  If unsure, say N.
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if GPIOLIB
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config OF_GPIO
	def_bool y
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	depends on OF
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	depends on HAS_IOMEM
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config GPIO_ACPI
	def_bool y
	depends on ACPI

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config GPIOLIB_IRQCHIP
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	select IRQ_DOMAIN
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	bool

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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.
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	  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
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	  slower.  The diagnostics help catch the type of setup errors
	  that are most common when setting up new platforms or boards.

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config GPIO_SYSFS
	bool "/sys/class/gpio/... (sysfs interface)"
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	depends on SYSFS
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	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.

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config GPIO_GENERIC
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	depends on HAS_IOMEM # Only for IOMEM drivers
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	tristate

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# put drivers in the right section, in alphabetical order
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# This symbol is selected by both I2C and SPI expanders
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config GPIO_MAX730X
	tristate

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menu "Memory mapped GPIO drivers"
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	depends on HAS_IOMEM
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config GPIO_74XX_MMIO
	tristate "GPIO driver for 74xx-ICs with MMIO access"
	depends on OF_GPIO
	select GPIO_GENERIC
	help
	  Say yes here to support GPIO functionality for 74xx-compatible ICs
	  with MMIO access. Compatible models include:
	    1 bit:	741G125 (Input), 741G74 (Output)
	    2 bits:	742G125 (Input), 7474 (Output)
	    4 bits:	74125 (Input), 74175 (Output)
	    6 bits:	74365 (Input), 74174 (Output)
	    8 bits:	74244 (Input), 74273 (Output)
	    16 bits:	741624 (Input), 7416374 (Output)

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config GPIO_ALTERA
	tristate "Altera GPIO"
	depends on OF_GPIO
	select GPIOLIB_IRQCHIP
	help
	  Say Y or M here to build support for the Altera PIO device.

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

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config GPIO_AMDPT
	tristate "AMD Promontory GPIO support"
	depends on ACPI
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	select GPIO_GENERIC
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	help
	  driver for GPIO functionality on Promontory IOHub
	  Require ACPI ASL code to enumerate as a platform device.

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config GPIO_ASPEED
	tristate "Aspeed GPIO support"
	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
	select GPIOLIB_IRQCHIP
	help
	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.

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config GPIO_ATH79
	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
	default y if ATH79
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	depends on ATH79 || COMPILE_TEST
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	select GPIO_GENERIC
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	select GPIOLIB_IRQCHIP
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	help
	  Select this option to enable GPIO driver for
	  Atheros AR71XX/AR724X/AR913X SoC devices.

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config GPIO_BCM_KONA
	bool "Broadcom Kona GPIO"
	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
	help
	  Turn on GPIO support for Broadcom "Kona" chips.

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config GPIO_BRCMSTB
	tristate "BRCMSTB GPIO support"
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	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
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	select GPIO_GENERIC
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	select IRQ_DOMAIN
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	help
	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.

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

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

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config GPIO_EM
	tristate "Emma Mobile GPIO"
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	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
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	help
	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.

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config GPIO_EP93XX
	def_bool y
	depends on ARCH_EP93XX
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	select GPIO_GENERIC
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config GPIO_ETRAXFS
	bool "Axis ETRAX FS General I/O"
	depends on CRIS || COMPILE_TEST
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	depends on OF_GPIO
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	select GPIO_GENERIC
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	select GPIOLIB_IRQCHIP
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	help
	  Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.

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config GPIO_EXAR
	tristate "Support for GPIO pins on XR17V352/354/358"
	depends on SERIAL_8250_EXAR
	help
	  Selecting this option will enable handling of GPIO pins present
	  on Exar XR17V352/354/358 chips.

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config GPIO_GE_FPGA
	bool "GE FPGA based GPIO"
	depends on GE_FPGA
	select GPIO_GENERIC
	help
	  Support for common GPIO functionality provided on some GE Single Board
	  Computers.

	  This driver provides basic support (configure as input or output, read
	  and write pin state) for GPIO implemented in a number of GE single
	  board computers.

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config GPIO_FTGPIO010
	bool "Faraday FTGPIO010 GPIO"
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	depends on OF_GPIO
	select GPIO_GENERIC
	select GPIOLIB_IRQCHIP
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	default (ARCH_GEMINI || ARCH_MOXART)
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	help
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	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
	  Cortina systems Gemini platforms, Moxa ART and others.
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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_GRGPIO
	tristate "Aeroflex Gaisler GRGPIO support"
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	depends on OF_GPIO
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	select GPIO_GENERIC
	select IRQ_DOMAIN
	help
	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
	  VHDL IP core library.

config GPIO_ICH
	tristate "Intel ICH GPIO"
	depends on PCI && X86
	select MFD_CORE
	select LPC_ICH
	help
	  Say yes here to support the GPIO functionality of a number of Intel
	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).

	  If unsure, say N.

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config GPIO_INGENIC
	tristate "Ingenic JZ47xx SoCs GPIO support"
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	depends on OF
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	depends on MACH_INGENIC || COMPILE_TEST
	select GPIOLIB_IRQCHIP
	help
	  Say yes here to support the GPIO functionality present on the
	  JZ4740 and JZ4780 SoCs from Ingenic.

	  If unsure, say N.

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config GPIO_IOP
	tristate "Intel IOP GPIO"
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	depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
	select GPIO_GENERIC
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	help
	  Say yes here to support the GPIO functionality of a number of Intel
	  IOP32X or IOP33X.

	  If unsure, say N.

config GPIO_LOONGSON
	bool "Loongson-2/3 GPIO support"
	depends on CPU_LOONGSON2 || CPU_LOONGSON3
	help
	  driver for GPIO functionality on Loongson-2F/3A/3B processors.

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config GPIO_LPC18XX
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	tristate "NXP LPC18XX/43XX GPIO support"
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	default y if ARCH_LPC18XX
	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
	help
	  Select this option to enable GPIO driver for
	  NXP LPC18XX/43XX devices.

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config GPIO_LYNXPOINT
	tristate "Intel Lynxpoint GPIO support"
	depends on ACPI && X86
	select GPIOLIB_IRQCHIP
	help
	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
	  Requires ACPI device enumeration code to set up a platform device.

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config GPIO_MB86S7X
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	tristate "GPIO support for Fujitsu MB86S7x Platforms"
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	help
	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.

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config GPIO_MENZ127
	tristate "MEN 16Z127 GPIO support"
	depends on MCB
	select GPIO_GENERIC
	help
	 Say yes here to support the MEN 16Z127 GPIO Controller

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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.

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config GPIO_MOCKUP
	tristate "GPIO Testing Driver"
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	depends on GPIOLIB && SYSFS
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	select GPIO_SYSFS
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	select GPIOLIB_IRQCHIP
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	select IRQ_SIM
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	help
	  This enables GPIO Testing driver, which provides a way to test GPIO
	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
	  must be selected for this test.
	  User could use it through the script in
	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
	  it.

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config GPIO_MPC5200
	def_bool y
	depends on PPC_MPC52xx

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config GPIO_MPC8XXX
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	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
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	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
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		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
		   COMPILE_TEST
	select GPIO_GENERIC
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	select IRQ_DOMAIN
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	help
	  Say Y here if you're going to use hardware that connects to the
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	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
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config GPIO_MVEBU
	def_bool y
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	depends on PLAT_ORION || ARCH_MVEBU
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	depends on OF_GPIO
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	select GENERIC_IRQ_CHIP
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	select REGMAP_MMIO
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config GPIO_MXC
	def_bool y
	depends on ARCH_MXC
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	select GPIO_GENERIC
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	select GENERIC_IRQ_CHIP
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config GPIO_MXS
	def_bool y
	depends on ARCH_MXS
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	select GPIO_GENERIC
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	select GENERIC_IRQ_CHIP
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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.

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

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

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

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config GPIO_RCAR
	tristate "Renesas R-Car GPIO"
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	depends on ARCH_RENESAS || COMPILE_TEST
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	select GPIOLIB_IRQCHIP
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	help
	  Say yes here to support GPIO on Renesas R-Car SoCs.

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config GPIO_REG
	bool
	help
	  A 32-bit single register GPIO fixed in/out implementation.  This
	  can be used to represent any register as a set of GPIO signals.

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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

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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.

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config GPIO_STP_XWAY
	bool "XWAY STP GPIOs"
	depends on SOC_XWAY
	help
	  This enables support for the Serial To Parallel (STP) unit found on
	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
	  that can be up to 24 bit. This peripheral is aimed at driving leds.
	  Some of the gpios/leds can be auto updated by the soc with dsl and
	  phy status.

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

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config GPIO_TB10X
	bool
	select GENERIC_IRQ_CHIP
	select OF_GPIO

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config GPIO_TEGRA
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	bool "NVIDIA Tegra GPIO support"
	default ARCH_TEGRA
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	depends on ARCH_TEGRA || COMPILE_TEST
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	depends on OF_GPIO
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	help
	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
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config GPIO_TEGRA186
	tristate "NVIDIA Tegra186 GPIO support"
	default ARCH_TEGRA_186_SOC
	depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
	depends on OF_GPIO
	select GPIOLIB_IRQCHIP
	help
	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.

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config GPIO_TS4800
	tristate "TS-4800 DIO blocks and compatibles"
	depends on OF_GPIO
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	depends on SOC_IMX51 || COMPILE_TEST
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	select GPIO_GENERIC
	help
	  This driver support TS-4800 FPGA GPIO controllers.

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config GPIO_THUNDERX
	tristate "Cavium ThunderX/OCTEON-TX GPIO"
	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
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	depends on PCI_MSI
	select IRQ_DOMAIN_HIERARCHY
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	select IRQ_FASTEOI_HIERARCHY_HANDLERS
	help
	  Say yes here to support the on-chip GPIO lines on the ThunderX
	  and OCTEON-TX families of SoCs.

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

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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.

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config GPIO_UNIPHIER
	tristate "UniPhier GPIO support"
	depends on ARCH_UNIPHIER || COMPILE_TEST
	depends on OF_GPIO
	select IRQ_DOMAIN_HIERARCHY
	help
	  Say yes here to support UniPhier GPIOs.

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config GPIO_VF610
	def_bool y
	depends on ARCH_MXC && SOC_VF610
	select GPIOLIB_IRQCHIP
	help
	  Say yes here to support Vybrid vf610 GPIOs.

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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_VX855
	tristate "VIA VX855/VX875 GPIO"
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	depends on (X86 || COMPILE_TEST) && PCI
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	select MFD_CORE
	select MFD_VX855
	help
	  Support access to the VX855/VX875 GPIO lines through the gpio library.

	  This driver provides common support for accessing the device,
	  additional drivers must be enabled in order to use the
	  functionality of the device.

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config GPIO_XGENE
	bool "APM X-Gene GPIO controller support"
	depends on ARM64 && OF_GPIO
	help
	  This driver is to support the GPIO block within the APM X-Gene SoC
	  platform's generic flash controller. The GPIO pins are muxed with
	  the generic flash controller's address and data pins. Say yes
	  here to enable the GFC GPIO functionality.

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config GPIO_XGENE_SB
	tristate "APM X-Gene GPIO standby controller support"
	depends on ARCH_XGENE && OF_GPIO
	select GPIO_GENERIC
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	select GPIOLIB_IRQCHIP
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	select IRQ_DOMAIN_HIERARCHY
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	help
	  This driver supports the GPIO block within the APM X-Gene
	  Standby Domain. Say yes here to enable the GPIO functionality.

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config GPIO_XILINX
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	tristate "Xilinx GPIO support"
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	depends on OF_GPIO
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	help
	  Say yes here to support the Xilinx FPGA GPIO device

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config GPIO_XLP
	tristate "Netlogic XLP GPIO support"
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	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
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	select GPIOLIB_IRQCHIP
	help
	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
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	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
	  Cavium's ThunderX2 CN99XX SoCs.
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	  If unsure, say N.

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

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config GPIO_ZEVIO
	bool "LSI ZEVIO SoC memory mapped GPIOs"
	depends on ARM && OF_GPIO
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	help
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	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
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config GPIO_ZYNQ
	tristate "Xilinx Zynq GPIO support"
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	depends on ARCH_ZYNQ || ARCH_ZYNQMP
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	select GPIOLIB_IRQCHIP
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	help
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	  Say yes here to support Xilinx Zynq GPIO controller.
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config GPIO_ZX
	bool "ZTE ZX GPIO support"
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	depends on ARCH_ZX || COMPILE_TEST
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	select GPIOLIB_IRQCHIP
	help
	  Say yes here to support the GPIO device on ZTE ZX SoCs.

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config GPIO_LOONGSON1
	tristate "Loongson1 GPIO support"
	depends on MACH_LOONGSON32
	select GPIO_GENERIC
	help
	  Say Y or M here to support GPIO on Loongson1 SoCs.

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endmenu
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menu "Port-mapped I/O GPIO drivers"
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	depends on X86 # Unconditional I/O space access
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config GPIO_104_DIO_48E
	tristate "ACCES 104-DIO-48E GPIO support"
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	depends on PC104 && ISA_BUS_API
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	select GPIOLIB_IRQCHIP
	help
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	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
	  104-DIO-24E). The base port addresses for the devices may be
	  configured via the base module parameter. The interrupt line numbers
	  for the devices may be configured via the irq module parameter.
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config GPIO_104_IDIO_16
	tristate "ACCES 104-IDIO-16 GPIO support"
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	depends on PC104 && ISA_BUS_API
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	select GPIOLIB_IRQCHIP
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	help
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	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
	  base port addresses for the devices may be configured via the base
	  module parameter. The interrupt line numbers for the devices may be
	  configured via the irq module parameter.
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config GPIO_104_IDI_48
	tristate "ACCES 104-IDI-48 GPIO support"
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	depends on PC104 && ISA_BUS_API
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	select GPIOLIB_IRQCHIP
	help
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	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
	  the devices may be configured via the base module parameter. The
	  interrupt line numbers for the devices may be configured via the irq
	  module parameter.
622

623
config GPIO_F7188X
624
	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
625 626
	help
	  This option enables support for GPIOs found on Fintek Super-I/O
627
	  chips F71869, F71869A, F71882FG, F71889F and F81866.
628 629 630 631

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

632 633
config GPIO_GPIO_MM
	tristate "Diamond Systems GPIO-MM GPIO support"
634
	depends on PC104 && ISA_BUS_API
635 636 637 638 639 640 641 642 643 644
	help
	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.

	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
	  support for these 48 channels of digital I/O.

	  The base port addresses for the devices may be configured via the base
	  array module parameter.

645 646 647 648 649 650
config GPIO_IT87
	tristate "IT87xx GPIO support"
	help
	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.

	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
651
	  supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
652 653 654 655 656 657

	  To compile this driver as a module, choose M here: the module will
	  be called gpio_it87

config GPIO_SCH
	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
658
	depends on (X86 || COMPILE_TEST) && PCI
659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
	select MFD_CORE
	select LPC_SCH
	help
	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
	  Intel Tunnel Creek processor, Intel Centerton processor or
	  Intel Quark X1000 SoC.

	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
	  powered by the core power rail and are turned off during sleep
	  modes (S3 and higher). The remaining four GPIOs are powered by
	  the Intel SCH suspend power supply. These GPIOs remain
	  active during S3. The suspend powered GPIOs can be used to wake the
	  system from the Suspend-to-RAM state.

	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
	  core power rail and 9 from suspend power supply.

	  The Intel Centerton processor has a total of 30 GPIO pins.
	  Twenty-one are powered by the core power rail and 9 from the
	  suspend power supply.

	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
	  power well and 6 from the suspend power well.

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_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.

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Maciej S. Szmigiero 已提交
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config GPIO_WINBOND
	tristate "Winbond Super I/O GPIO support"
	select ISA_BUS_API
	help
	  This option enables support for GPIOs found on Winbond Super I/O
	  chips.
	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
	  supported.

	  You will need to provide a module parameter "gpios", or a
	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).

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

717 718
config GPIO_WS16C48
	tristate "WinSystems WS16C48 GPIO support"
719
	depends on ISA_BUS_API
720 721
	select GPIOLIB_IRQCHIP
	help
722 723 724 725
	  Enables GPIO support for the WinSystems WS16C48. The base port
	  addresses for the devices may be configured via the base module
	  parameter. The interrupt line numbers for the devices may be
	  configured via the irq module parameter.
726

727 728
endmenu

729 730
menu "I2C GPIO expanders"
	depends on I2C
731

732 733
config GPIO_ADP5588
	tristate "ADP5588 I2C GPIO expander"
734
	help
735 736
	  This option enables support for 18 GPIOs found
	  on Analog Devices ADP5588 GPIO Expanders.
737

738 739 740
config GPIO_ADP5588_IRQ
	bool "Interrupt controller support for ADP5588"
	depends on GPIO_ADP5588=y
741
	help
742 743
	  Say yes here to enable the adp5588 to be used as an interrupt
	  controller. It requires the driver to be built in the kernel.
744

745 746
config GPIO_ADNP
	tristate "Avionic Design N-bit GPIO expander"
747
	depends on OF_GPIO
748 749
	select GPIOLIB_IRQCHIP
	help
750 751 752 753 754 755
	  This option enables support for N GPIOs found on Avionic Design
	  I2C GPIO expanders. The register space will be extended by powers
	  of two, so the controller will need to accommodate for that. For
	  example: if a controller provides 48 pins, 6 registers will be
	  enough to represent all pins, but the driver will assume a
	  register layout for 64 pins (8 registers).
756

757 758 759 760
config GPIO_MAX7300
	tristate "Maxim MAX7300 GPIO expander"
	select GPIO_MAX730X
	help
761
	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
762

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config GPIO_MAX732X
	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
	help
	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
	  Port Expanders. Each IO port on these chips has a fixed role of
	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
	  Input and Output (designed by 'P'). The combinations are listed
	  below:

	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
		  	max7322 (4I4O), max7323 (4P4O)

	  16 bits:	max7324 (8I8O), max7325 (8P8O),
		  	max7326 (4I12O), max7327 (4P12O)

	  Board setup code must specify the model to use, and the start
	  number for these GPIOs.

781 782
config GPIO_MAX732X_IRQ
	bool "Interrupt controller support for MAX732x"
783
	depends on GPIO_MAX732X=y
784
	select GPIOLIB_IRQCHIP
785 786 787 788
	help
	  Say yes here to enable the max732x to be used as an interrupt
	  controller. It requires the driver to be built in the kernel.

789 790
config GPIO_MC9S08DZ60
	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
791
	depends on I2C=y && MACH_MX35_3DS
792 793 794
	help
	  Select this to enable the MC9S08DZ60 GPIO driver

795
config GPIO_PCA953X
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	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
797
	help
798 799 800 801 802 803
	  Say yes here to provide access to several register-oriented
	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
	  models include:

	  4 bits:	pca9536, pca9537

804
	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
805
			pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
806

807 808
	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
			tca6416
809

810 811
	  24 bits:	tca6424

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	  40 bits:	pca9505, pca9698
813

814 815 816
config GPIO_PCA953X_IRQ
	bool "Interrupt controller support for PCA953x"
	depends on GPIO_PCA953X=y
817
	select GPIOLIB_IRQCHIP
818 819 820 821
	help
	  Say yes here to enable the pca953x to be used as an interrupt
	  controller. It requires the driver to be built in the kernel.

822
config GPIO_PCF857X
823
	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
824
	select GPIOLIB_IRQCHIP
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Arnd Bergmann 已提交
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	select IRQ_DOMAIN
826 827 828 829 830 831 832
	help
	  Say yes here to provide access to most "quasi-bidirectional" I2C
	  GPIO expanders used for additional digital outputs or inputs.
	  Most of these parts are from NXP, though TI is a second source for
	  some of them.  Compatible models include:

	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
833 834
	            pca9670, pca9672, pca9674, pca9674a,
	  	    max7328, max7329
835 836 837 838 839 840 841 842 843 844 845 846

	  16 bits:  pcf8575, pcf8575c, pca8575,
	            pca9671, pca9673, pca9675

	  Your board setup code will need to declare the expanders in
	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
	  can then be used from drivers and other kernel code, just like
	  other GPIOs, but only accessible from task contexts.

	  This driver provides an in-kernel interface to those GPIOs using
	  platform-neutral GPIO calls.

847 848 849 850 851 852 853 854
config GPIO_TPIC2810
	tristate "TPIC2810 8-Bit I2C GPO expander"
	help
	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.

	  To compile this driver as a module, choose M here: the module will
	  be called gpio-tpic2810.

855 856
config GPIO_TS4900
	tristate "Technologic Systems FPGA I2C GPIO"
857
	depends on SOC_IMX6 || COMPILE_TEST
858 859 860 861 862
	select REGMAP_I2C
	help
	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.

863 864 865
endmenu

menu "MFD GPIO expanders"
866 867 868 869 870 871 872 873

config GPIO_ADP5520
	tristate "GPIO Support for ADP5520 PMIC"
	depends on PMIC_ADP5520
	help
	  This option enables support for on-chip GPIO found
	  on Analog Devices ADP5520 PMICs.

874 875 876 877 878 879 880 881
config GPIO_ALTERA_A10SR
	tristate "Altera Arria10 System Resource GPIO"
	depends on MFD_ALTERA_A10SR
	help
	  Driver for Arria10 Development Kit GPIO expansion which
	  includes reads of pushbuttons and DIP switches as well
	  as writes to LEDs.

882 883 884 885 886 887
config GPIO_ARIZONA
	tristate "Wolfson Microelectronics Arizona class devices"
	depends on MFD_ARIZONA
	help
	  Support for GPIOs on Wolfson Arizona class devices.

888 889 890 891 892 893 894 895 896 897 898
config GPIO_BD9571MWV
	tristate "ROHM BD9571 GPIO support"
	depends on MFD_BD9571MWV
	help
	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
	  available on the ROHM PMIC in total, both of which can also
	  generate interrupts.

	  This driver can also be built as a module. If so, the module
	  will be called gpio-bd9571mwv.

899 900
config GPIO_CRYSTAL_COVE
	tristate "GPIO support for Crystal Cove PMIC"
901
	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
902 903 904 905 906 907 908 909 910 911 912 913
	select GPIOLIB_IRQCHIP
	help
	  Support for GPIO pins on Crystal Cove PMIC.

	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
	  inside.

	  This driver can also be built as a module. If so, the module will be
	  called gpio-crystalcove.

config GPIO_CS5535
	tristate "AMD CS5535/CS5536 GPIO support"
914
	depends on X86 || MIPS || COMPILE_TEST
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951
	depends on MFD_CS5535
	help
	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
	  can be used for quite a number of things.  The CS5535/6 is found on
	  AMD Geode and Lemote Yeeloong devices.

	  If unsure, say N.

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_DLN2
	tristate "Diolan DLN2 GPIO support"
	depends on MFD_DLN2
	select GPIOLIB_IRQCHIP

	help
	  Select this option to enable GPIO driver for the Diolan DLN2
	  board.

	  This driver can also be built as a module. If so, the module
	  will be called gpio-dln2.

952 953 954 955 956 957 958 959
config HTC_EGPIO
	bool "HTC EGPIO support"
	depends on GPIOLIB && ARM
	help
	    This driver supports the CPLD egpio chip present on
	    several HTC phones.  It provides basic support for input
	    pins, output pins, and irqs.

960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985
config GPIO_JANZ_TTL
	tristate "Janz VMOD-TTL Digital IO Module"
	depends on MFD_JANZ_CMODIO
	help
	  This enables support for the Janz VMOD-TTL Digital IO module.
	  This driver provides support for driving the pins in output
	  mode only. Input mode is not supported.

config GPIO_KEMPLD
	tristate "Kontron ETX / COMexpress GPIO"
	depends on MFD_KEMPLD
	help
	  This enables support for the PLD GPIO interface on some Kontron ETX
	  and COMexpress (ETXexpress) modules.

	  This driver can also be built as a module. If so, the module will be
	  called gpio-kempld.

config GPIO_LP3943
	tristate "TI/National Semiconductor LP3943 GPIO expander"
	depends on MFD_LP3943
	help
	  GPIO driver for LP3943 MFD.
	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
	  Open drain outputs are required for this usage.

986 987 988 989 990 991 992 993 994 995
config GPIO_LP873X
	tristate "TI LP873X GPO"
	depends on MFD_TI_LP873X
	help
	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
	  on LP873X PMICs.

	  This driver can also be built as a module. If so, the module will be
          called gpio-lp873x.

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Keerthy 已提交
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config GPIO_LP87565
	tristate "TI LP87565 GPIO"
	depends on MFD_TI_LP87565
	help
	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
	  on LP87565 PMICs.

	  This driver can also be built as a module. If so, the module will be
	  called gpio-lp87565.

1006 1007 1008 1009 1010 1011 1012 1013 1014
config GPIO_MAX77620
	tristate "GPIO support for PMIC MAX77620 and MAX20024"
	depends on MFD_MAX77620
	help
	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
	  driver also provides interrupt support for each of the gpios.
	  Say yes here to enable the max77620 to be used as gpio controller.

1015 1016
config GPIO_MSIC
	bool "Intel MSIC mixed signal gpio support"
1017
	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028
	help
	  Enable support for GPIO on intel MSIC controllers found in
	  intel MID devices

config GPIO_PALMAS
	bool "TI PALMAS series PMICs GPIO"
	depends on MFD_PALMAS
	help
	  Select this option to enable GPIO driver for the TI PALMAS
	  series chip family.

1029 1030 1031 1032 1033 1034 1035 1036 1037
config GPIO_RC5T583
	bool "RICOH RC5T583 GPIO"
	depends on MFD_RC5T583
	help
	  Select this option to enable GPIO driver for the Ricoh RC5T583
	  chip family.
	  This driver provides the support for driving/reading the gpio pins
	  of RC5T583 device through standard gpio library.

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Rabin Vincent 已提交
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config GPIO_STMPE
	bool "STMPE GPIOs"
	depends on MFD_STMPE
1041
	depends on OF_GPIO
1042
	select GPIOLIB_IRQCHIP
R
Rabin Vincent 已提交
1043 1044 1045 1046
	help
	  This enables support for the GPIOs found on the STMPE I/O
	  Expanders.

1047 1048 1049
config GPIO_TC3589X
	bool "TC3589X GPIOs"
	depends on MFD_TC3589X
1050
	depends on OF_GPIO
1051
	select GPIOLIB_IRQCHIP
R
Rabin Vincent 已提交
1052
	help
1053
	  This enables support for the GPIOs found on the TC3589X
R
Rabin Vincent 已提交
1054 1055
	  I/O Expander.

1056 1057 1058 1059 1060 1061
config GPIO_TIMBERDALE
	bool "Support for timberdale GPIO IP"
	depends on MFD_TIMBERDALE
	---help---
	Add support for the GPIO IP in the timberdale FPGA.

1062 1063 1064 1065 1066 1067
config GPIO_TPS65086
	tristate "TI TPS65086 GPO"
	depends on MFD_TPS65086
	help
	  This driver supports the GPO on TI TPS65086x PMICs.

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Nicolas Saenz Julienne 已提交
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config GPIO_TPS65218
	tristate "TPS65218 GPIO"
	depends on MFD_TPS65218
	help
	  Select this option to enable GPIO driver for the TPS65218
	  chip family.

1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088
config GPIO_TPS6586X
	bool "TPS6586X GPIO"
	depends on MFD_TPS6586X
	help
	  Select this option to enable GPIO driver for the TPS6586X
	  chip family.

config GPIO_TPS65910
	bool "TPS65910 GPIO"
	depends on MFD_TPS65910
	help
	  Select this option to enable GPIO driver for the TPS65910
	  chip family.

1089 1090
config GPIO_TPS65912
	tristate "TI TPS65912 GPIO"
1091
	depends on MFD_TPS65912
1092 1093 1094
	help
	  This driver supports TPS65912 gpio chip

1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
config GPIO_TPS68470
	bool "TPS68470 GPIO"
	depends on MFD_TPS68470
	help
	  Select this option to enable GPIO driver for the TPS68470
	  chip family.
	  There are 7 GPIOs and few sensor related GPIOs supported
	  by the TPS68470. While the 7 GPIOs can be configured as
	  input or output as appropriate, the sensor related GPIOs
	  are "output only" GPIOs.

	  This driver config is bool, as the GPIO functionality
	  of the TPS68470 must be available before dependent
	  drivers are loaded.

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David Brownell 已提交
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config GPIO_TWL4030
	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
	depends on TWL4030_CORE
	help
	  Say yes here to access the GPIO signals of various multi-function
	  power management chips from Texas Instruments.

1117 1118 1119 1120 1121 1122 1123
config GPIO_TWL6040
	tristate "TWL6040 GPO"
	depends on TWL6040_CORE
	help
	  Say yes here to access the GPO signals of twl6040
	  audio chip from Texas Instruments.

1124 1125 1126 1127 1128 1129 1130
config GPIO_UCB1400
	tristate "Philips UCB1400 GPIO"
	depends on UCB1400_CORE
	help
	  This enables support for the Philips UCB1400 GPIO pins.
	  The UCB1400 is an AC97 audio codec.

1131 1132
config GPIO_WHISKEY_COVE
	tristate "GPIO support for Whiskey Cove PMIC"
1133
	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1134 1135 1136 1137 1138 1139 1140 1141 1142 1143
	select GPIOLIB_IRQCHIP
	help
	  Support for GPIO pins on Whiskey Cove PMIC.

	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
	  inside.

	  This driver can also be built as a module. If so, the module will be
	  called gpio-wcove.

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Mark Brown 已提交
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config GPIO_WM831X
	tristate "WM831x GPIOs"
	depends on MFD_WM831X
	help
	  Say yes here to access the GPIO signals of WM831x power management
	  chips from Wolfson Microelectronics.

1151 1152 1153 1154 1155 1156 1157
config GPIO_WM8350
	tristate "WM8350 GPIOs"
	depends on MFD_WM8350
	help
	  Say yes here to access the GPIO signals of WM8350 power management
	  chips from Wolfson Microelectronics.

M
Mark Brown 已提交
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config GPIO_WM8994
	tristate "WM8994 GPIOs"
	depends on MFD_WM8994
	help
	  Say yes here to access the GPIO signals of WM8994 audio hub
	  CODECs from Wolfson Microelectronics.

1165
endmenu
1166

1167 1168
menu "PCI GPIO expanders"
	depends on PCI
1169

1170 1171
config GPIO_AMD8111
	tristate "AMD 8111 GPIO driver"
1172
	depends on X86 || COMPILE_TEST
1173
	help
1174
	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
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Michael Buesch 已提交
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1176 1177 1178
	  Note, that usually system firmware/ACPI handles GPIO pins on their
	  own and users might easily break their systems with uncarefull usage
	  of this driver!
1179

1180
	  If unsure, say N
1181

M
Michael Buesch 已提交
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config GPIO_BT8XX
	tristate "BT8XX GPIO abuser"
1184
	depends on VIDEO_BT848=n
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Michael Buesch 已提交
1185
	help
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Geert Uytterhoeven 已提交
1186
	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
M
Michael Buesch 已提交
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	  as a cheap PCI GPIO card.

	  This chip can be found on Miro, Hauppauge and STB TV-cards.

	  The card needs to be physically altered for using it as a
	  GPIO card. For more information on how to build a GPIO card
	  from a BT8xx TV card, see the documentation file at
	  Documentation/bt8xxgpio.txt

	  If unsure, say N.

1198
config GPIO_INTEL_MID
1199 1200
	bool "Intel MID GPIO support"
	depends on X86_INTEL_MID
1201
	select GPIOLIB_IRQCHIP
1202
	help
1203
	  Say Y here to support Intel MID GPIO.
1204

1205 1206 1207
config GPIO_MERRIFIELD
	tristate "Intel Merrifield GPIO support"
	depends on X86_INTEL_MID
1208
	select GPIOLIB_IRQCHIP
1209
	help
1210
	  Say Y here to support Intel Merrifield GPIO.
1211

1212 1213
config GPIO_ML_IOH
	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1214
	depends on X86 || COMPILE_TEST
1215 1216 1217 1218 1219 1220 1221
	select GENERIC_IRQ_CHIP
	help
	  ML7213 is companion chip for Intel Atom E6xx series.
	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
	  Hub) which is for IVI(In-Vehicle Infotainment) use.
	  This driver can access the IOH's GPIO device.

1222
config GPIO_PCH
1223
	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1224
	depends on X86_32 || MIPS || COMPILE_TEST
1225
	select GENERIC_IRQ_CHIP
1226 1227 1228 1229 1230
	help
	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
	  which is an IOH(Input/Output Hub) for x86 embedded processor.
	  This driver can access PCH GPIO device.

1231 1232
	  This driver also can be used for LAPIS Semiconductor IOH(Input/
	  Output Hub), ML7223 and ML7831.
1233
	  ML7223 IOH is for MP(Media Phone) use.
1234 1235 1236
	  ML7831 IOH is for general purpose use.
	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1237

1238 1239 1240 1241 1242 1243 1244 1245 1246
config GPIO_PCI_IDIO_16
	tristate "ACCES PCI-IDIO-16 GPIO support"
	select GPIOLIB_IRQCHIP
	help
	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
	  generated when any of the inputs change state (low to high or high to
	  low). Input filter control is not supported by this driver, and the
	  input filters are deactivated by this driver.

1247 1248 1249 1250
config GPIO_RDC321X
	tristate "RDC R-321x GPIO support"
	select MFD_CORE
	select MFD_RDC321X
1251
	help
1252 1253
	  Support for the RDC R321x SoC GPIOs over southbridge
	  PCI configuration space.
1254

1255 1256
config GPIO_SODAVILLE
	bool "Intel Sodaville GPIO support"
1257
	depends on X86 && OF
1258 1259 1260 1261 1262
	select GPIO_GENERIC
	select GENERIC_IRQ_CHIP
	help
	  Say Y here to support Intel Sodaville GPIO.

1263
endmenu
1264

1265 1266
menu "SPI GPIO expanders"
	depends on SPI_MASTER
1267

1268 1269
config GPIO_74X164
	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1270
	depends on OF_GPIO
1271 1272 1273 1274
	help
	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
	  shift registers. This driver can be used to provide access
	  to more gpio outputs.
1275

1276 1277 1278 1279 1280 1281 1282 1283 1284 1285
config GPIO_MAX3191X
	tristate "Maxim MAX3191x industrial serializer"
	select CRC8
	help
	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
	  chip to make 8 digital 24V inputs available via SPI.  Supports
	  CRC checksums to guard against electromagnetic interference,
	  as well as undervoltage and overtemperature detection.

1286 1287
config GPIO_MAX7301
	tristate "Maxim MAX7301 GPIO expander"
1288
	select GPIO_MAX730X
1289
	help
1290
	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1291

R
Richard Röjfors 已提交
1292 1293 1294 1295 1296 1297
config GPIO_MC33880
	tristate "Freescale MC33880 high-side/low-side switch"
	help
	  SPI driver for Freescale MC33880 high-side/low-side switch.
	  This provides GPIO interface supporting inputs and outputs.

1298 1299 1300 1301 1302 1303
config GPIO_PISOSR
	tristate "Generic parallel-in/serial-out shift register"
	help
	  GPIO driver for SPI compatible parallel-in/serial-out shift
	  registers. These are input only devices.

1304 1305
config GPIO_XRA1403
	tristate "EXAR XRA1403 16-bit GPIO expander"
A
Arnd Bergmann 已提交
1306
	select REGMAP_SPI
1307 1308 1309
	help
	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.

L
Linus Walleij 已提交
1310 1311
endmenu

1312 1313
menu "USB GPIO expanders"
	depends on USB
L
Lars Poeschel 已提交
1314 1315 1316

config GPIO_VIPERBOARD
	tristate "Viperboard GPIO a & b support"
1317
	depends on MFD_VIPERBOARD
L
Lars Poeschel 已提交
1318 1319 1320 1321 1322 1323 1324 1325
	help
	  Say yes here to access the GPIO signals of Nano River
	  Technologies Viperboard. There are two GPIO chips on the
	  board: gpioa and gpiob.
          See viperboard API specification and Nano
          River Tech's viperboard.h for detailed meaning
          of the module parameters.

1326
endmenu
1327

M
Michael Buesch 已提交
1328
endif