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diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
+#
+# 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.
+
+menuconfig GPIOLIB
+ bool "GPIO Support"
+ 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 GPIOLIB_FASTPATH_LIMIT
+ int "Maximum number of GPIOs for fast path"
+ range 32 512
+ default 512
+ help
+ This adjusts the point at which certain APIs will switch from
+ using a stack allocated buffer to a dynamically allocated buffer.
+
+ You shouldn't need to change this unless you really need to
+ optimize either stack space or performance. Change this carefully
+ since setting an incorrect value could cause stack corruption.
+
+config OF_GPIO
+ def_bool y
+ depends on OF
+ depends on HAS_IOMEM
+
+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)" if EXPERT
+ depends on SYSFS
+ select GPIO_CDEV # We need to encourage the new ABI
+ help
+ Say Y here to add the legacy sysfs interface for GPIOs.
+
+ This ABI is deprecated. If you want to use GPIO from userspace,
+ use the character device /dev/gpiochipN with the appropriate
+ ioctl() operations instead.
+
+config GPIO_CDEV
+ bool
+ prompt "Character device (/dev/gpiochipN) support" if EXPERT
+ default y
+ help
+ Say Y here to add the character device /dev/gpiochipN interface
+ for GPIOs. The character device allows userspace to control GPIOs
+ using ioctl() operations.
+
+ Only say N if you are sure that the GPIO character device is not
+ required.
+
+ If unsure, say Y.
+
+config GPIO_CDEV_V1
+ bool "Support GPIO ABI Version 1"
+ default y
+ depends on GPIO_CDEV
+ help
+ Say Y here to support version 1 of the GPIO CDEV ABI.
+
+ This ABI version is deprecated.
+ Please use the latest ABI for new developments.
+
+ If unsure, say Y.
+
+config GPIO_GENERIC
+ depends on HAS_IOMEM # Only for IOMEM drivers
+ tristate
+
+config GPIO_REGMAP
+ select REGMAP
+ tristate
+
+# put drivers in the right section, in alphabetical order
+
+# This symbol is selected by both I2C and SPI expanders
+config GPIO_MAX730X
+ tristate
+
+menu "Memory mapped GPIO drivers"
+ depends on HAS_IOMEM
+
+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)
+
+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.
+
+config GPIO_AMDPT
+ tristate "AMD Promontory GPIO support"
+ depends on ACPI
+ select GPIO_GENERIC
+ help
+ Driver for GPIO functionality on Promontory IOHub.
+ Requires ACPI ASL code to enumerate as a platform device.
+
+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.
+
+config GPIO_ASPEED_SGPIO
+ bool "Aspeed SGPIO support"
+ depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y here to support Aspeed AST2500 SGPIO functionality.
+
+config GPIO_ATH79
+ tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
+ default y if ATH79
+ depends on ATH79 || COMPILE_TEST
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Select this option to enable GPIO driver for
+ Atheros AR71XX/AR724X/AR913X SoC devices.
+
+config GPIO_RASPBERRYPI_EXP
+ tristate "Raspberry Pi 3 GPIO Expander"
+ default RASPBERRYPI_FIRMWARE
+ depends on OF_GPIO
+ # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
+ # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
+ depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
+ help
+ Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
+ the firmware mailbox to communicate with VideoCore on BCM283x chips.
+
+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.
+
+config GPIO_BCM_XGS_IPROC
+ tristate "BRCM XGS iProc GPIO support"
+ depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ default ARCH_BCM_IPROC
+ help
+ Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
+
+config GPIO_BRCMSTB
+ tristate "BRCMSTB GPIO support"
+ default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
+ depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
+ select GPIO_GENERIC
+ select IRQ_DOMAIN
+ help
+ Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
+
+config GPIO_CADENCE
+ tristate "Cadence GPIO support"
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to enable support for Cadence GPIO controller.
+
+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 || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
+ help
+ Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
+
+config GPIO_DWAPB
+ tristate "Synopsys DesignWare APB GPIO driver"
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y or M here to build support for the Synopsys DesignWare APB
+ GPIO block.
+
+config GPIO_EIC_SPRD
+ tristate "Spreadtrum EIC support"
+ depends on ARCH_SPRD || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support Spreadtrum EIC device.
+
+config GPIO_EM
+ tristate "Emma Mobile GPIO"
+ depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
+ help
+ Say yes here to support GPIO on Renesas Emma Mobile SoCs.
+
+config GPIO_EN7523
+ tristate "Airoha GPIO support"
+ depends on ARCH_AIROHA
+ default ARCH_AIROHA
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y or M here to support the GPIO controller block on the
+ Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
+
+config GPIO_EP93XX
+ def_bool y
+ depends on ARCH_EP93XX
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+
+config GPIO_EXAR
+ tristate "Support for GPIO pins on XR17V352/354/358"
+ depends on SERIAL_8250_EXAR
+ select REGMAP_MMIO
+ help
+ Selecting this option will enable handling of GPIO pins present
+ on Exar XR17V352/354/358 chips.
+
+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.
+
+config GPIO_FTGPIO010
+ bool "Faraday FTGPIO010 GPIO"
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ default (ARCH_GEMINI || ARCH_MOXART)
+ help
+ Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
+ Cortina systems Gemini platforms, Moxa ART and others.
+
+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"
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select IRQ_DOMAIN
+ help
+ Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
+ VHDL IP core library.
+
+config GPIO_HISI
+ tristate "HiSilicon GPIO controller driver"
+ depends on (ARM64 && ACPI) || COMPILE_TEST
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y or M here to build support for the HiSilicon GPIO controller
+ driver GPIO block.
+ This GPIO controller supports double-edge interrupt and multi-core
+ concurrent access.
+
+config GPIO_HLWD
+ tristate "Nintendo Wii (Hollywood) GPIO"
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Select this to support the GPIO controller of the Nintendo Wii.
+
+ If unsure, say N.
+
+config GPIO_ICH
+ tristate "Intel ICH GPIO"
+ depends on X86
+ depends on 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 (e.g. Ibex Peak), Series 6/C200 (e.g.
+ Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
+
+ If unsure, say N.
+
+config GPIO_IMX_SCU
+ def_bool y
+ depends on IMX_SCU
+
+config GPIO_IOP
+ tristate "Intel IOP GPIO"
+ depends on ARCH_IOP32X || COMPILE_TEST
+ select GPIO_GENERIC
+ help
+ Say yes here to support the GPIO functionality of a number of Intel
+ IOP32X or IOP33X series of chips.
+
+ If unsure, say N.
+
+config GPIO_IXP4XX
+ bool "Intel IXP4xx GPIO"
+ depends on ARCH_IXP4XX
+ depends on OF
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say yes here to support the GPIO functionality of a number of Intel
+ IXP4xx series of chips.
+
+ If unsure, say N.
+
+config GPIO_LOGICVC
+ tristate "Xylon LogiCVC GPIO support"
+ depends on MFD_SYSCON && OF
+ help
+ Say yes here to support GPIO functionality of the Xylon LogiCVC
+ programmable logic block.
+
+config GPIO_LOONGSON
+ bool "Loongson-2/3 GPIO support"
+ depends on CPU_LOONGSON2EF || CPU_LOONGSON64
+ help
+ Driver for GPIO functionality on Loongson-2F/3A/3B processors.
+
+config GPIO_LPC18XX
+ tristate "NXP LPC18XX/43XX GPIO support"
+ default y if ARCH_LPC18XX
+ depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Select this option to enable GPIO driver for
+ NXP LPC18XX/43XX devices.
+
+config GPIO_LPC32XX
+ tristate "NXP LPC32XX GPIO support"
+ depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
+ help
+ Select this option to enable GPIO driver for
+ NXP LPC32XX devices.
+
+config GPIO_MB86S7X
+ tristate "GPIO support for Fujitsu MB86S7x Platforms"
+ help
+ Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
+
+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.
+
+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 16-bit latch to the bus.
+
+config GPIO_MPC5200
+ def_bool y
+ depends on PPC_MPC52xx
+
+config GPIO_MPC8XXX
+ bool "MPC512x/MPC8xxx/QorIQ GPIO support"
+ depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
+ FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
+ COMPILE_TEST
+ select GPIO_GENERIC
+ select IRQ_DOMAIN
+ help
+ Say Y here if you're going to use hardware that connects to the
+ MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
+
+config GPIO_MT7621
+ bool "Mediatek MT7621 GPIO Support"
+ depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support the Mediatek MT7621 SoC GPIO device.
+
+config GPIO_MVEBU
+ def_bool y
+ depends on PLAT_ORION || ARCH_MVEBU
+ depends on OF_GPIO
+ select GENERIC_IRQ_CHIP
+ select REGMAP_MMIO
+
+config GPIO_MXC
+ tristate "i.MX GPIO support"
+ depends on ARCH_MXC || COMPILE_TEST
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+
+config GPIO_MXS
+ bool "Freescale MXS GPIO support" if COMPILE_TEST
+ depends on ARCH_MXS || COMPILE_TEST
+ default y if ARCH_MXS
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+
+config GPIO_OCTEON
+ tristate "Cavium OCTEON GPIO"
+ depends on 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
+ tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
+ 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
+ tristate "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_PMIC_EIC_SPRD
+ tristate "Spreadtrum PMIC EIC support"
+ depends on MFD_SC27XX_PMIC || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support Spreadtrum PMIC EIC device.
+
+config GPIO_PXA
+ bool "PXA GPIO support"
+ depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
+ help
+ Say yes here to support the PXA GPIO device.
+
+config GPIO_RCAR
+ tristate "Renesas R-Car and RZ/G GPIO support"
+ depends on ARCH_RENESAS || COMPILE_TEST
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
+
+config GPIO_RDA
+ bool "RDA Micro GPIO controller support"
+ depends on ARCH_RDA || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y here to support RDA Micro GPIO controller.
+
+config GPIO_REALTEK_OTTO
+ tristate "Realtek Otto GPIO support"
+ depends on MACH_REALTEK_RTL
+ default MACH_REALTEK_RTL
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ The GPIO controller on the Otto MIPS platform supports up to two
+ banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
+ are grouped in four 8-bit wide ports.
+
+ When built as a module, the module will be called realtek_otto_gpio.
+
+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.
+
+config GPIO_ROCKCHIP
+ tristate "Rockchip GPIO support"
+ depends on ARCH_ROCKCHIP || COMPILE_TEST
+ select GENERIC_IRQ_CHIP
+ select GPIOLIB_IRQCHIP
+ default ARCH_ROCKCHIP
+ help
+ Say yes here to support GPIO on Rockchip SoCs.
+
+config GPIO_SAMA5D2_PIOBU
+ tristate "SAMA5D2 PIOBU GPIO support"
+ depends on MFD_SYSCON
+ depends on OF_GPIO
+ depends on ARCH_AT91 || COMPILE_TEST
+ select GPIO_SYSCON
+ help
+ Say yes here to use the PIOBU pins as GPIOs.
+
+ PIOBU pins on the SAMA5D2 can be used as GPIOs.
+ The difference from regular GPIOs is that they
+ maintain their value during backup/self-refresh.
+
+config GPIO_SIFIVE
+ bool "SiFive GPIO support"
+ depends on OF_GPIO
+ select IRQ_DOMAIN_HIERARCHY
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ select REGMAP_MMIO
+ help
+ Say yes here to support the GPIO device on SiFive SoCs.
+
+config GPIO_SIOX
+ tristate "SIOX GPIO support"
+ depends on SIOX
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support SIOX I/O devices. These are units connected
+ via a SIOX bus and have a number of fixed-direction I/O lines.
+
+config GPIO_SNPS_CREG
+ bool "Synopsys GPIO via CREG (Control REGisters) driver"
+ depends on ARC || COMPILE_TEST
+ depends on OF_GPIO
+ help
+ This driver supports GPIOs via CREG on various Synopsys SoCs.
+ This is a single-register MMIO GPIO driver for complex cases
+ where only several fields in register belong to GPIO lines and
+ each GPIO line owns a field with different length and on/off value.
+
+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_SPRD
+ tristate "Spreadtrum GPIO support"
+ depends on ARCH_SPRD || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support Spreadtrum 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_STP_XWAY
+ bool "XWAY STP GPIOs"
+ depends on SOC_XWAY || COMPILE_TEST
+ depends on OF_GPIO
+ 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 bits. This peripheral is aimed at driving LEDs.
+ Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
+ phy status.
+
+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_TB10X
+ bool
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+ select OF_GPIO
+
+config GPIO_TEGRA
+ tristate "NVIDIA Tegra GPIO support"
+ default ARCH_TEGRA
+ depends on ARCH_TEGRA || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
+
+config GPIO_TEGRA186
+ tristate "NVIDIA Tegra186 GPIO support"
+ default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
+ depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
+
+config GPIO_TS4800
+ tristate "TS-4800 DIO blocks and compatibles"
+ depends on OF_GPIO
+ depends on SOC_IMX51 || COMPILE_TEST
+ select GPIO_GENERIC
+ help
+ This driver support TS-4800 FPGA GPIO controllers.
+
+config GPIO_THUNDERX
+ tristate "Cavium ThunderX/OCTEON-TX GPIO"
+ depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
+ depends on PCI_MSI
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ 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.
+
+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.
+
+config GPIO_VF610
+ def_bool y
+ depends on ARCH_MXC
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support i.MX or Vybrid vf610 GPIOs.
+
+config GPIO_VISCONTI
+ tristate "Toshiba Visconti GPIO support"
+ depends on ARCH_VISCONTI || COMPILE_TEST
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ select GPIO_GENERIC
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say yes here to support GPIO on Tohisba Visconti.
+
+config GPIO_VX855
+ tristate "VIA VX855/VX875 GPIO"
+ depends on (X86 || COMPILE_TEST) && PCI
+ 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.
+
+config GPIO_WCD934X
+ tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
+ depends on MFD_WCD934X && OF_GPIO
+ help
+ This driver is to support GPIO block found on the Qualcomm Technologies
+ Inc WCD9340/WCD9341 Audio Codec.
+
+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.
+
+config GPIO_XGENE_SB
+ tristate "APM X-Gene GPIO standby controller support"
+ depends on (ARCH_XGENE || COMPILE_TEST)
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ This driver supports the GPIO block within the APM X-Gene
+ Standby Domain. Say yes here to enable the GPIO functionality.
+
+config GPIO_XILINX
+ tristate "Xilinx GPIO support"
+ select GPIOLIB_IRQCHIP
+ depends on OF_GPIO
+ help
+ Say yes here to support the Xilinx FPGA GPIO device.
+
+config GPIO_XLP
+ tristate "Cavium ThunderX2 GPIO support"
+ depends on ARCH_THUNDER2 || COMPILE_TEST
+ select GPIOLIB_IRQCHIP
+ help
+ This driver provides support for GPIO interface on Cavium's ThunderX2
+ CN99XX SoCs (Originally from Netlogic XLP).
+
+ If unsure, say N.
+
+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_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_ZYNQ
+ tristate "Xilinx Zynq GPIO support"
+ depends on ARCH_ZYNQ || ARCH_ZYNQMP
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to support Xilinx Zynq GPIO controller.
+
+config GPIO_ZYNQMP_MODEPIN
+ tristate "ZynqMP ps-mode pin GPIO configuration driver"
+ depends on ZYNQMP_FIRMWARE
+ default ZYNQMP_FIRMWARE
+ help
+ Say yes here to support the ZynqMP ps-mode pin GPIO configuration
+ driver.
+
+ This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
+ is 4-bits boot mode pins. It sets and gets the status of
+ the ps-mode pin. Every pin can be configured as input/output.
+
+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.
+
+config GPIO_AMD_FCH
+ tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
+ help
+ This option enables driver for GPIO on AMD's Fusion Controller Hub,
+ as found on G-series SOCs (e.g. GX-412TC).
+
+ Note: This driver doesn't register itself automatically, as it
+ needs to be provided with platform-specific configuration.
+ (See e.g. CONFIG_PCENGINES_APU2.)
+
+config GPIO_MSC313
+ bool "MStar MSC313 GPIO support"
+ depends on ARCH_MSTARV7
+ default ARCH_MSTARV7
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say Y here to support the main GPIO block on MStar/SigmaStar
+ ARMv7-based SoCs.
+
+config GPIO_IDT3243X
+ tristate "IDT 79RC3243X GPIO support"
+ depends on MIKROTIK_RB532 || COMPILE_TEST
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Select this option to enable GPIO driver for
+ IDT 79RC3243X-based devices like Mikrotik RB532.
+
+ To compile this driver as a module, choose M here: the module will
+ be called gpio-idt3243x.
+
+endmenu
+
+menu "Port-mapped I/O GPIO drivers"
+ depends on X86 # Unconditional I/O space access
+
+config GPIO_I8255
+ tristate
+ help
+ Enables support for the i8255 interface library functions. The i8255
+ interface library provides functions to facilitate communication with
+ interfaces compatible with the venerable Intel 8255 Programmable
+ Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
+ in the early 1970s but compatible interfaces are nowadays typically
+ found embedded in larger VLSI processing chips and FPGA components.
+
+ If built as a module its name will be gpio-i8255.
+
+config GPIO_104_DIO_48E
+ tristate "ACCES 104-DIO-48E GPIO support"
+ depends on PC104
+ select ISA_BUS_API
+ select GPIOLIB_IRQCHIP
+ select GPIO_I8255
+ help
+ 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.
+
+config GPIO_104_IDIO_16
+ tristate "ACCES 104-IDIO-16 GPIO support"
+ depends on PC104
+ select ISA_BUS_API
+ select GPIOLIB_IRQCHIP
+ help
+ 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.
+
+config GPIO_104_IDI_48
+ tristate "ACCES 104-IDI-48 GPIO support"
+ depends on PC104
+ select ISA_BUS_API
+ select GPIOLIB_IRQCHIP
+ select GPIO_I8255
+ help
+ 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.
+
+config GPIO_F7188X
+ tristate "Fintek and Nuvoton Super-I/O GPIO support"
+ help
+ This option enables support for GPIOs found on Fintek Super-I/O
+ chips F71869, F71869A, F71882FG, F71889F and F81866.
+ As well as Nuvoton Super-I/O chip NCT6126D.
+
+ To compile this driver as a module, choose M here: the module will
+ be called f7188x-gpio.
+
+config GPIO_GPIO_MM
+ tristate "Diamond Systems GPIO-MM GPIO support"
+ depends on PC104
+ select ISA_BUS_API
+ select GPIO_I8255
+ 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.
+
+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
+ supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
+ well.
+
+ 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"
+ depends on (X86 || COMPILE_TEST) && ACPI
+ depends on LPC_SCH
+ select GPIOLIB_IRQCHIP
+ 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.
+
+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.
+
+config GPIO_WS16C48
+ tristate "WinSystems WS16C48 GPIO support"
+ select ISA_BUS_API
+ select GPIOLIB_IRQCHIP
+ help
+ 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.
+
+endmenu
+
+menu "I2C GPIO expanders"
+ depends on I2C
+
+config GPIO_ADNP
+ tristate "Avionic Design N-bit GPIO expander"
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ 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).
+
+config GPIO_GW_PLD
+ tristate "Gateworks PLD GPIO Expander"
+ depends on OF_GPIO
+ help
+ Say yes here to provide access to the Gateworks I2C PLD GPIO
+ Expander. This is used at least on the Cambria GW2358-4.
+
+config GPIO_MAX7300
+ tristate "Maxim MAX7300 GPIO expander"
+ select GPIO_MAX730X
+ help
+ GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
+
+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.
+
+config GPIO_MAX732X_IRQ
+ bool "Interrupt controller support for MAX732x"
+ depends on GPIO_MAX732X=y
+ select GPIOLIB_IRQCHIP
+ 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.
+
+config GPIO_PCA953X
+ tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
+ select REGMAP_I2C
+ help
+ 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
+
+ 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,
+ pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
+
+ 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,
+ tca6416
+
+ 24 bits: tca6424
+
+ 40 bits: pca9505, pca9698
+
+config GPIO_PCA953X_IRQ
+ bool "Interrupt controller support for PCA953x"
+ depends on GPIO_PCA953X
+ select GPIOLIB_IRQCHIP
+ help
+ Say yes here to enable the pca953x to be used as an interrupt
+ controller.
+
+config GPIO_PCA9570
+ tristate "PCA9570 4-Bit I2C GPO expander"
+ help
+ Say yes here to enable the GPO driver for the NXP PCA9570 chip.
+
+ To compile this driver as a module, choose M here: the module will
+ be called gpio-pca9570.
+
+config GPIO_PCF857X
+ tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
+ select GPIOLIB_IRQCHIP
+ select IRQ_DOMAIN
+ 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,
+ pca9670, pca9672, pca9674, pca9674a,
+ max7328, max7329
+
+ 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.
+
+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.
+
+config GPIO_TS4900
+ tristate "Technologic Systems FPGA I2C GPIO"
+ depends on SOC_IMX6 || COMPILE_TEST
+ 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.
+
+endmenu
+
+menu "MFD GPIO expanders"
+
+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.
+
+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.
+
+config GPIO_ARIZONA
+ tristate "Wolfson Microelectronics Arizona class devices"
+ depends on MFD_ARIZONA
+ help
+ Support for GPIOs on Wolfson Arizona class devices.
+
+config GPIO_BD71815
+ tristate "ROHM BD71815 PMIC GPIO support"
+ depends on MFD_ROHM_BD71828
+ help
+ Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
+ available on the ROHM PMIC.
+
+ This driver can also be built as a module. If so, the module
+ will be called gpio-bd71815.
+
+config GPIO_BD71828
+ tristate "ROHM BD71828 GPIO support"
+ depends on MFD_ROHM_BD71828
+ help
+ Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
+ available on the ROHM PMIC in total. The GPIOs are limited to
+ outputs only and pins must be configured to GPIO outputs by
+ OTP. Enable this only if you want to use these pins as outputs.
+
+ This driver can also be built as a module. If so, the module
+ will be called gpio-bd71828.
+
+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.
+
+config GPIO_CRYSTAL_COVE
+ tristate "GPIO support for Crystal Cove PMIC"
+ depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
+ 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"
+ depends on X86 || MIPS || COMPILE_TEST
+ 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 controlled 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.
+
+config HTC_EGPIO
+ bool "HTC EGPIO support"
+ depends on 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.
+
+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.
+
+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.
+
+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.
+
+config GPIO_MADERA
+ tristate "Cirrus Logic Madera class codecs"
+ depends on PINCTRL_MADERA
+ help
+ Support for GPIOs on Cirrus Logic Madera class codecs.
+
+config GPIO_MAX77620
+ tristate "GPIO support for PMIC MAX77620 and MAX20024"
+ depends on MFD_MAX77620
+ select GPIOLIB_IRQCHIP
+ 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.
+
+config GPIO_MAX77650
+ tristate "Maxim MAX77650/77651 GPIO support"
+ depends on MFD_MAX77650
+ help
+ GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
+ These chips have a single pin that can be configured as GPIO.
+
+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.
+
+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.
+
+config GPIO_SL28CPLD
+ tristate "Kontron sl28cpld GPIO support"
+ depends on MFD_SL28CPLD || COMPILE_TEST
+ select GPIO_REGMAP
+ select GPIOLIB_IRQCHIP
+ select REGMAP_IRQ
+ help
+ This enables support for the GPIOs found on the Kontron sl28 CPLD.
+
+ This driver can also be built as a module. If so, the module will be
+ called gpio-sl28cpld.
+
+config GPIO_STMPE
+ bool "STMPE GPIOs"
+ depends on MFD_STMPE
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ This enables support for the GPIOs found on the STMPE I/O
+ Expanders.
+
+config GPIO_TC3589X
+ bool "TC3589X GPIOs"
+ depends on MFD_TC3589X
+ depends on OF_GPIO
+ select GPIOLIB_IRQCHIP
+ help
+ This enables support for the GPIOs found on the TC3589X
+ I/O Expander.
+
+config GPIO_TIMBERDALE
+ bool "Support for timberdale GPIO IP"
+ depends on MFD_TIMBERDALE
+ help
+ Add support for the GPIO IP in the timberdale FPGA.
+
+config GPIO_TN48M_CPLD
+ tristate "Delta Networks TN48M switch CPLD GPIO driver"
+ depends on MFD_TN48M_CPLD
+ select GPIO_REGMAP
+ help
+ This enables support for the GPIOs found on the Delta
+ Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
+ they are input-only or output-only type.
+
+ This driver can also be built as a module. If so, the
+ module will be called gpio-tn48m.
+
+config GPIO_TPS65086
+ tristate "TI TPS65086 GPO"
+ depends on MFD_TPS65086
+ help
+ This driver supports the GPO on TI TPS65086x PMICs.
+
+config GPIO_TPS65218
+ tristate "TPS65218 GPIO"
+ depends on MFD_TPS65218
+ help
+ Select this option to enable GPIO driver for the TPS65218
+ chip family.
+
+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.
+
+config GPIO_TPS65912
+ tristate "TI TPS65912 GPIO"
+ depends on MFD_TPS65912
+ help
+ This driver supports TPS65912 GPIO chip.
+
+config GPIO_TPS68470
+ tristate "TPS68470 GPIO"
+ depends on INTEL_SKL_INT3472
+ 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.
+
+config GPIO_TQMX86
+ tristate "TQ-Systems QTMX86 GPIO"
+ depends on MFD_TQMX86 || COMPILE_TEST
+ depends on HAS_IOPORT_MAP
+ select GPIOLIB_IRQCHIP
+ help
+ This driver supports GPIO on the TQMX86 IO controller.
+
+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.
+
+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.
+
+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.
+
+config GPIO_WHISKEY_COVE
+ tristate "GPIO support for Whiskey Cove PMIC"
+ depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
+ select GPIOLIB_IRQCHIP
+ help
+ Support for GPIO pins on Whiskey Cove PMIC.
+
+ Say Yes if you have an 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.
+
+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.
+
+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.
+
+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.
+
+endmenu
+
+menu "PCI GPIO expanders"
+ depends on PCI
+
+config GPIO_AMD8111
+ tristate "AMD 8111 GPIO driver"
+ depends on X86 || COMPILE_TEST
+ depends on HAS_IOPORT_MAP
+ help
+ The AMD 8111 southbridge contains 32 GPIO pins which can be used.
+
+ Note that usually system firmware/ACPI handles GPIO pins on their
+ own and users might easily break their systems with uncareful usage
+ of this driver!
+
+ If unsure, say N
+
+config GPIO_BT8XX
+ tristate "BT8XX GPIO abuser"
+ depends on VIDEO_BT848=n
+ help
+ The BT8xx frame grabber chip has 24 GPIO pins that can be abused
+ 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/driver-api/gpio/bt8xxgpio.rst
+
+ If unsure, say N.
+
+config GPIO_MERRIFIELD
+ tristate "Intel Merrifield GPIO support"
+ depends on X86_INTEL_MID
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y here to support Intel Merrifield GPIO.
+
+config GPIO_MLXBF
+ tristate "Mellanox BlueField SoC GPIO"
+ depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
+ select GPIO_GENERIC
+ help
+ Say Y here if you want GPIO support on Mellanox BlueField SoC.
+
+config GPIO_MLXBF2
+ tristate "Mellanox BlueField 2 SoC GPIO"
+ depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
+ select GPIO_GENERIC
+ help
+ Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
+
+config GPIO_ML_IOH
+ tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
+ depends on X86 || COMPILE_TEST
+ 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.
+
+config GPIO_PCH
+ tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
+ depends on X86_32 || MIPS || COMPILE_TEST
+ select GENERIC_IRQ_CHIP
+ 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.
+
+ This driver also can be used for LAPIS Semiconductor IOH (Input/
+ Output Hub), ML7223 and ML7831.
+ ML7223 IOH is for MP (Media Phone) use.
+ 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.
+
+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.
+
+config GPIO_PCIE_IDIO_24
+ tristate "ACCES PCIe-IDIO-24 GPIO support"
+ select GPIOLIB_IRQCHIP
+ help
+ Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
+ PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). 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.
+
+config GPIO_RDC321X
+ tristate "RDC R-321x GPIO support"
+ select MFD_CORE
+ select MFD_RDC321X
+ help
+ Support for the RDC R321x SoC GPIOs over southbridge
+ PCI configuration space.
+
+config GPIO_SODAVILLE
+ bool "Intel Sodaville GPIO support"
+ depends on X86 && OF
+ select GPIO_GENERIC
+ select GENERIC_IRQ_CHIP
+ help
+ Say Y here to support Intel Sodaville GPIO.
+
+endmenu
+
+menu "SPI GPIO expanders"
+ depends on SPI_MASTER
+
+config GPIO_74X164
+ tristate "74x164 serial-in/parallel-out 8-bits shift register"
+ depends on OF_GPIO
+ 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.
+
+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.
+
+config GPIO_MAX7301
+ tristate "Maxim MAX7301 GPIO expander"
+ select GPIO_MAX730X
+ help
+ GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
+
+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.
+
+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.
+
+config GPIO_XRA1403
+ tristate "EXAR XRA1403 16-bit GPIO expander"
+ select REGMAP_SPI
+ help
+ GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
+
+config GPIO_MOXTET
+ tristate "Turris Mox Moxtet bus GPIO expander"
+ depends on MOXTET
+ help
+ Say yes here if you are building for the Turris Mox router.
+ This is the driver needed for configuring the GPIOs via the Moxtet
+ bus. For example the Mox module with SFP cage needs this driver
+ so that phylink can use corresponding GPIOs.
+
+endmenu
+
+menu "USB GPIO expanders"
+ depends on USB
+
+config GPIO_VIPERBOARD
+ tristate "Viperboard GPIO a & b support"
+ depends on MFD_VIPERBOARD
+ 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.
+
+endmenu
+
+menu "Virtual GPIO drivers"
+
+config GPIO_AGGREGATOR
+ tristate "GPIO Aggregator"
+ help
+ Say yes here to enable the GPIO Aggregator, which provides a way to
+ aggregate existing GPIO lines into a new virtual GPIO chip.
+ This can serve the following purposes:
+ - Assign permissions for a collection of GPIO lines to a user,
+ - Export a collection of GPIO lines to a virtual machine,
+ - Provide a generic driver for a GPIO-operated device in an
+ industrial control context, to be operated from userspace using
+ the GPIO chardev interface.
+
+config GPIO_MOCKUP
+ tristate "GPIO Testing Driver"
+ select IRQ_SIM
+ help
+ This enables GPIO Testing driver, which provides a way to test GPIO
+ subsystem through sysfs (or char device) and debugfs.
+ User could use it through the script in
+ tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
+ it.
+
+config GPIO_VIRTIO
+ tristate "VirtIO GPIO support"
+ depends on VIRTIO
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y here to enable guest support for virtio-based GPIO controllers.
+
+ These virtual GPIOs can be routed to real GPIOs or attached to
+ simulators on the host (like QEMU).
+
+config GPIO_SIM
+ tristate "GPIO Simulator Module"
+ select IRQ_SIM
+ select CONFIGFS_FS
+ help
+ This enables the GPIO simulator - a configfs-based GPIO testing
+ driver.
+
+endmenu
+
+endif