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| -rw-r--r-- | drivers/gpio/Kconfig | 1620 |
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diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig new file mode 100644 index 000000000..39f3e1366 --- /dev/null +++ b/drivers/gpio/Kconfig @@ -0,0 +1,1620 @@ +# 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)" + depends on SYSFS + 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 + Require 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_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 + 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_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 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. + +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. + + If unsure, say N. + +config GPIO_IXP4XX + bool "Intel IXP4xx GPIO" + depends on ARM # For <asm/mach-types.h> + depends on ARCH_IXP4XX + 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 16bit 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 GPIO" + depends on ARCH_RENESAS || COMPILE_TEST + select GPIOLIB_IRQCHIP + help + Say yes here to support GPIO on Renesas R-Car 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_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_SAMA5D2_PIOBU + tristate "SAMA5D2 PIOBU GPIO support" + depends on MFD_SYSCON + depends on OF_GPIO + 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 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. + +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 + bool "NVIDIA Tegra GPIO support" + default ARCH_TEGRA + depends on ARCH_TEGRA || COMPILE_TEST + depends on OF_GPIO + 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 && SOC_VF610 + select GPIOLIB_IRQCHIP + help + Say yes here to support Vybrid vf610 GPIOs. + +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" + 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 supprot 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" + help + Say yes here to support the Xilinx FPGA GPIO device + +config GPIO_XLP + tristate "Netlogic XLP GPIO support" + depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) + select GPIOLIB_IRQCHIP + help + This driver provides support for GPIO interface on Netlogic XLP MIPS64 + SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, + XLP9XX and XLP5XX. The same GPIO controller block is also present in + Cavium's ThunderX2 CN99XX SoCs. + + 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_ZX + bool "ZTE ZX GPIO support" + depends on ARCH_ZX || COMPILE_TEST + select GPIOLIB_IRQCHIP + help + Say yes here to support the GPIO device on ZTE ZX SoCs. + +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 AMDs Fusion Controller Hub, + as found on G-series SOCs (eg. GX-412TC) + + Note: This driver doesn't registers itself automatically, as it + needs to be provided with platform specific configuration. + (See eg. CONFIG_PCENGINES_APU2.) +endmenu + +menu "Port-mapped I/O GPIO drivers" + depends on X86 # Unconditional I/O space access + +config GPIO_104_DIO_48E + tristate "ACCES 104-DIO-48E GPIO support" + depends on PC104 + select ISA_BUS_API + select GPIOLIB_IRQCHIP + 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 + 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 "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" + help + This option enables support for GPIOs found on Fintek Super-I/O + chips F71869, F71869A, F71882FG, F71889F and F81866. + + 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 + 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) && PCI + 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. + +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_ADP5588 + tristate "ADP5588 I2C GPIO expander" + help + This option enables support for 18 GPIOs found + on Analog Devices ADP5588 GPIO Expanders. + +config GPIO_ADP5588_IRQ + bool "Interrupt controller support for ADP5588" + depends on GPIO_ADP5588=y + select GPIOLIB_IRQCHIP + help + Say yes here to enable the adp5588 to be used as an interrupt + controller. It requires the driver to be built in the kernel. + +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_MC9S08DZ60 + bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" + depends on I2C=y && MACH_MX35_3DS + help + Select this to enable the MC9S08DZ60 GPIO driver + +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. It requires the driver to be built in the kernel. + +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_BD70528 + tristate "ROHM BD70528 GPIO support" + depends on MFD_ROHM_BD70528 + help + Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs + available on the ROHM PMIC in total. The GPIOs can also + generate interrupts. + + This driver can also be built as a module. If so, the module + will be called gpio-bd70528. + +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 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. + +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_MSIC + bool "Intel MSIC mixed signal gpio support" + depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC + 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. + +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_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 + 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. + +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 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. + +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 south bridge 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 uncarefull 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_INTEL_MID + bool "Intel MID GPIO support" + depends on X86_INTEL_MID + select GPIOLIB_IRQCHIP + help + Say Y here to support Intel MID GPIO. + +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 + +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. 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. + +endif |