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1# SPDX-License-Identifier: GPL-2.0-only2#3# GPIO infrastructure and drivers4#5 6menuconfig GPIOLIB7 bool "GPIO Support"8 help9 This enables GPIO support through the generic GPIO library.10 You only need to enable this if you also want to enable11 one or more of the GPIO drivers below.12 13 If unsure, say N.14 15if GPIOLIB16 17config GPIOLIB_FASTPATH_LIMIT18 int "Maximum number of GPIOs for fast path"19 range 32 51220 default 51221 help22 This adjusts the point at which certain APIs will switch from23 using a stack allocated buffer to a dynamically allocated buffer.24 25 You shouldn't need to change this unless you really need to26 optimize either stack space or performance. Change this carefully27 since setting an incorrect value could cause stack corruption.28 29config OF_GPIO30 def_bool y31 depends on OF32 depends on HAS_IOMEM33 34config GPIO_ACPI35 def_bool y36 depends on ACPI37 38config GPIOLIB_IRQCHIP39 select IRQ_DOMAIN40 bool41 42config OF_GPIO_MM_GPIOCHIP43 bool44 help45 This adds support for the legacy 'struct of_mm_gpio_chip' interface46 from PowerPC. Existing drivers using this interface need to select47 this symbol, but new drivers should use the generic gpio-regmap48 infrastructure instead.49 50config DEBUG_GPIO51 bool "Debug GPIO calls"52 depends on DEBUG_KERNEL53 help54 Say Y here to add some extra checks and diagnostics to GPIO calls.55 These checks help ensure that GPIOs have been properly initialized56 before they are used, and that sleeping calls are not made from57 non-sleeping contexts. They can make bitbanged serial protocols58 slower. The diagnostics help catch the type of setup errors59 that are most common when setting up new platforms or boards.60 61config GPIO_SYSFS62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT63 depends on SYSFS64 select GPIO_CDEV # We need to encourage the new ABI65 help66 Say Y here to add the legacy sysfs interface for GPIOs.67 68 This ABI is deprecated. If you want to use GPIO from userspace,69 use the character device /dev/gpiochipN with the appropriate70 ioctl() operations instead.71 72config GPIO_CDEV73 bool74 prompt "Character device (/dev/gpiochipN) support" if EXPERT75 default y76 help77 Say Y here to add the character device /dev/gpiochipN interface78 for GPIOs. The character device allows userspace to control GPIOs79 using ioctl() operations.80 81 Only say N if you are sure that the GPIO character device is not82 required.83 84 If unsure, say Y.85 86config GPIO_CDEV_V187 bool "Support GPIO ABI Version 1"88 default y89 depends on GPIO_CDEV90 help91 Say Y here to support version 1 of the GPIO CDEV ABI.92 93 This ABI version is deprecated.94 Please use the latest ABI for new developments.95 96 If unsure, say Y.97 98config GPIO_GENERIC99 depends on HAS_IOMEM # Only for IOMEM drivers100 tristate101 102config GPIO_REGMAP103 select REGMAP104 tristate105 106config GPIO_SWNODE_UNDEFINED107 bool108 help109 This adds a special place holder for software nodes to contain an110 undefined GPIO reference, this is primarily used by SPI to allow a111 list of GPIO chip selects to mark a certain chip select as being112 controlled the SPI device's internal chip select mechanism and not113 a GPIO.114 115# put drivers in the right section, in alphabetical order116 117# This symbol is selected by both I2C and SPI expanders118config GPIO_MAX730X119 tristate120 121config GPIO_IDIO_16122 tristate123 select REGMAP_IRQ124 select GPIOLIB_IRQCHIP125 select GPIO_REGMAP126 help127 Enables support for the idio-16 library functions. The idio-16 library128 provides functions to facilitate communication with devices within the129 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.130 131 If built as a module its name will be gpio-idio-16.132 133menu "Memory mapped GPIO drivers"134 depends on HAS_IOMEM135 136config GPIO_74XX_MMIO137 tristate "GPIO driver for 74xx-ICs with MMIO access"138 depends on OF_GPIO139 select GPIO_GENERIC140 help141 Say yes here to support GPIO functionality for 74xx-compatible ICs142 with MMIO access. Compatible models include:143 1 bit: 741G125 (Input), 741G74 (Output)144 2 bits: 742G125 (Input), 7474 (Output)145 4 bits: 74125 (Input), 74175 (Output)146 6 bits: 74365 (Input), 74174 (Output)147 8 bits: 74244 (Input), 74273 (Output)148 16 bits: 741624 (Input), 7416374 (Output)149 150config GPIO_ALTERA151 tristate "Altera GPIO"152 depends on OF_GPIO153 select GPIOLIB_IRQCHIP154 select OF_GPIO_MM_GPIOCHIP155 help156 Say Y or M here to build support for the Altera PIO device.157 158 If driver is built as a module it will be called gpio-altera.159 160config GPIO_AMDPT161 tristate "AMD Promontory GPIO support"162 depends on ACPI163 select GPIO_GENERIC164 help165 Driver for GPIO functionality on Promontory IOHub.166 Requires ACPI ASL code to enumerate as a platform device.167 168config GPIO_ASPEED169 tristate "Aspeed GPIO support"170 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO171 select GPIOLIB_IRQCHIP172 help173 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.174 175config GPIO_ASPEED_SGPIO176 bool "Aspeed SGPIO support"177 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO178 select GPIO_GENERIC179 select GPIOLIB_IRQCHIP180 help181 Say Y here to support Aspeed AST2500 SGPIO functionality.182 183config GPIO_ATH79184 tristate "Atheros AR71XX/AR724X/AR913X GPIO support"185 default y if ATH79186 depends on ATH79 || COMPILE_TEST187 select GPIO_GENERIC188 select GPIOLIB_IRQCHIP189 help190 Select this option to enable GPIO driver for191 Atheros AR71XX/AR724X/AR913X SoC devices.192 193config GPIO_RASPBERRYPI_EXP194 tristate "Raspberry Pi 3 GPIO Expander"195 default RASPBERRYPI_FIRMWARE196 depends on OF_GPIO197 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only198 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.199 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)200 help201 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using202 the firmware mailbox to communicate with VideoCore on BCM283x chips.203 204config GPIO_BCM_KONA205 bool "Broadcom Kona GPIO"206 depends on ARCH_BCM_MOBILE || COMPILE_TEST207 help208 Turn on GPIO support for Broadcom "Kona" chips.209 210config GPIO_BCM_XGS_IPROC211 tristate "BRCM XGS iProc GPIO support"212 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)213 select GPIO_GENERIC214 select GPIOLIB_IRQCHIP215 default ARCH_BCM_IPROC216 help217 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.218 219config GPIO_BRCMSTB220 tristate "BRCMSTB GPIO support"221 default y if (ARCH_BRCMSTB || BMIPS_GENERIC)222 depends on OF_GPIO && (ARCH_BRCMSTB || ARCH_BCM2835 || BMIPS_GENERIC || COMPILE_TEST)223 select GPIO_GENERIC224 select IRQ_DOMAIN225 help226 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.227 228config GPIO_CADENCE229 tristate "Cadence GPIO support"230 depends on OF_GPIO231 select GPIO_GENERIC232 select GPIOLIB_IRQCHIP233 help234 Say yes here to enable support for Cadence GPIO controller.235 236config GPIO_CLPS711X237 tristate "CLPS711X GPIO support"238 depends on ARCH_CLPS711X || COMPILE_TEST239 select GPIO_GENERIC240 help241 Say yes here to support GPIO on CLPS711X SoCs.242 243config GPIO_DAVINCI244 tristate "TI Davinci/Keystone GPIO support"245 default y if ARCH_DAVINCI246 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)247 help248 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.249 250config GPIO_DWAPB251 tristate "Synopsys DesignWare APB GPIO driver"252 select GPIO_GENERIC253 select GPIOLIB_IRQCHIP254 help255 Say Y or M here to build support for the Synopsys DesignWare APB256 GPIO block.257 258config GPIO_EIC_SPRD259 tristate "Spreadtrum EIC support"260 depends on ARCH_SPRD || COMPILE_TEST261 depends on OF_GPIO262 select GPIOLIB_IRQCHIP263 help264 Say yes here to support Spreadtrum EIC device.265 266config GPIO_EM267 tristate "Emma Mobile GPIO"268 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO269 help270 Say yes here to support GPIO on Renesas Emma Mobile SoCs.271 272config GPIO_EN7523273 tristate "Airoha GPIO support"274 depends on ARCH_AIROHA275 default ARCH_AIROHA276 select GPIO_GENERIC277 select GPIOLIB_IRQCHIP278 help279 Say Y or M here to support the GPIO controller block on the280 Airoha EN7523 SoC. It supports two banks of 32 GPIOs.281 282config GPIO_EP93XX283 def_bool y284 depends on ARCH_EP93XX285 select GPIO_GENERIC286 select GPIOLIB_IRQCHIP287 288config GPIO_EXAR289 tristate "Support for GPIO pins on XR17V352/354/358"290 depends on SERIAL_8250_EXAR291 select REGMAP_MMIO292 help293 Selecting this option will enable handling of GPIO pins present294 on Exar XR17V352/354/358 chips.295 296config GPIO_GE_FPGA297 bool "GE FPGA based GPIO"298 depends on GE_FPGA || COMPILE_TEST299 select GPIO_GENERIC300 help301 Support for common GPIO functionality provided on some GE Single Board302 Computers.303 304 This driver provides basic support (configure as input or output, read305 and write pin state) for GPIO implemented in a number of GE single306 board computers.307 308config GPIO_FTGPIO010309 bool "Faraday FTGPIO010 GPIO"310 depends on OF_GPIO311 select GPIO_GENERIC312 select GPIOLIB_IRQCHIP313 default (ARCH_GEMINI || ARCH_MOXART)314 help315 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in316 Cortina systems Gemini platforms, Moxa ART and others.317 318config GPIO_GENERIC_PLATFORM319 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"320 select GPIO_GENERIC321 help322 Say yes here to support basic platform_device memory-mapped GPIO controllers.323 324config GPIO_GRANITERAPIDS325 tristate "Intel Granite Rapids-D vGPIO support"326 depends on X86 || COMPILE_TEST327 select GPIOLIB_IRQCHIP328 help329 Select this to enable virtual GPIO support on platforms with the330 following SoCs:331 332 - Intel Granite Rapids-D333 334 The driver enables basic GPIO functionality and implements interrupt335 support. The virtual GPIO driver controls GPIO lines via a firmware336 interface. The physical GPIO pins reside on device that is external337 from the main SoC package, such as a BMC or a CPLD.338 339 To compile this driver as a module, choose M here: the module will340 be called gpio-graniterapids.341 342config GPIO_GRGPIO343 tristate "Aeroflex Gaisler GRGPIO support"344 depends on OF_GPIO345 select GPIO_GENERIC346 select IRQ_DOMAIN347 help348 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB349 VHDL IP core library.350 351config GPIO_HISI352 tristate "HiSilicon GPIO controller driver"353 depends on ARM64 || COMPILE_TEST354 select GPIO_GENERIC355 select GPIOLIB_IRQCHIP356 help357 Say Y or M here to build support for the HiSilicon GPIO controller358 driver GPIO block.359 This GPIO controller supports double-edge interrupt and multi-core360 concurrent access.361 362config GPIO_HLWD363 tristate "Nintendo Wii (Hollywood) GPIO"364 depends on OF_GPIO365 select GPIO_GENERIC366 select GPIOLIB_IRQCHIP367 help368 Select this to support the GPIO controller of the Nintendo Wii.369 370 If unsure, say N.371 372config GPIO_ICH373 tristate "Intel ICH GPIO"374 depends on X86375 depends on LPC_ICH376 help377 Say yes here to support the GPIO functionality of a number of Intel378 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8379 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.380 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).381 382 If unsure, say N.383 384config GPIO_IMX_SCU385 def_bool y386 depends on IMX_SCU387 388config GPIO_IXP4XX389 bool "Intel IXP4xx GPIO"390 depends on ARCH_IXP4XX391 depends on OF392 select GPIO_GENERIC393 select GPIOLIB_IRQCHIP394 select IRQ_DOMAIN_HIERARCHY395 help396 Say yes here to support the GPIO functionality of a number of Intel397 IXP4xx series of chips.398 399 If unsure, say N.400 401config GPIO_LOGICVC402 tristate "Xylon LogiCVC GPIO support"403 depends on MFD_SYSCON && OF404 help405 Say yes here to support GPIO functionality of the Xylon LogiCVC406 programmable logic block.407 408config GPIO_LOONGSON409 bool "Loongson-2/3 GPIO support"410 depends on CPU_LOONGSON2EF || CPU_LOONGSON64411 help412 Driver for GPIO functionality on Loongson-2F/3A/3B processors.413 414config GPIO_LOONGSON_64BIT415 tristate "Loongson 64 bit GPIO support"416 depends on LOONGARCH || COMPILE_TEST417 depends on OF_GPIO418 select GPIO_GENERIC419 help420 Say yes here to support the GPIO functionality of a number of421 Loongson series of chips. The Loongson GPIO controller supports422 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and423 the remaining 56 are reused with other functions, with edge or424 level triggered interrupts.425 426config GPIO_LPC18XX427 tristate "NXP LPC18XX/43XX GPIO support"428 default y if ARCH_LPC18XX429 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)430 select IRQ_DOMAIN_HIERARCHY431 help432 Select this option to enable GPIO driver for433 NXP LPC18XX/43XX devices.434 435config GPIO_LPC32XX436 tristate "NXP LPC32XX GPIO support"437 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)438 help439 Select this option to enable GPIO driver for440 NXP LPC32XX devices.441 442config GPIO_MB86S7X443 tristate "GPIO support for Fujitsu MB86S7x Platforms"444 help445 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.446 447config GPIO_MENZ127448 tristate "MEN 16Z127 GPIO support"449 depends on MCB450 select GPIO_GENERIC451 help452 Say yes here to support the MEN 16Z127 GPIO Controller.453 454config GPIO_MM_LANTIQ455 bool "Lantiq Memory mapped GPIOs"456 depends on LANTIQ && SOC_XWAY457 select OF_GPIO_MM_GPIOCHIP458 help459 This enables support for memory mapped GPIOs on the External Bus Unit460 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are461 created by attaching a 16-bit latch to the bus.462 463config GPIO_MPC5200464 def_bool y465 depends on PPC_MPC52xx466 select OF_GPIO_MM_GPIOCHIP467 468config GPIO_MPC8XXX469 bool "MPC512x/MPC8xxx/QorIQ GPIO support"470 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \471 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \472 COMPILE_TEST473 select GPIO_GENERIC474 select IRQ_DOMAIN475 help476 Say Y here if you're going to use hardware that connects to the477 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.478 479config GPIO_MT7621480 bool "Mediatek MT7621 GPIO Support"481 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST482 depends on OF_GPIO483 select GPIO_GENERIC484 select GPIOLIB_IRQCHIP485 help486 Say yes here to support the Mediatek MT7621 SoC GPIO device.487 488config GPIO_MVEBU489 def_bool y490 depends on PLAT_ORION || ARCH_MVEBU491 depends on OF_GPIO492 select GENERIC_IRQ_CHIP493 select REGMAP_MMIO494 495config GPIO_MXC496 tristate "i.MX GPIO support"497 depends on ARCH_MXC || COMPILE_TEST498 select GPIO_GENERIC499 select GENERIC_IRQ_CHIP500 501config GPIO_MXS502 bool "Freescale MXS GPIO support" if COMPILE_TEST503 depends on ARCH_MXS || COMPILE_TEST504 default y if ARCH_MXS505 select GPIO_GENERIC506 select GENERIC_IRQ_CHIP507 508config GPIO_NOMADIK509 bool "Nomadik GPIO driver"510 depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST511 select GPIOLIB_IRQCHIP512 help513 Say yes here to support the Nomadik SoC GPIO block. This block is also514 used by the Mobileye EyeQ5 SoC.515 516 It handles up to 32 GPIOs per bank, that can all be interrupt sources.517 It is deeply interconnected with the associated pinctrl driver as GPIO518 registers handle muxing ("alternate functions") as well.519 520config GPIO_NPCM_SGPIO521 bool "Nuvoton SGPIO support"522 depends on ARCH_NPCM || COMPILE_TEST523 select GPIOLIB_IRQCHIP524 help525 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.526 527config GPIO_OCTEON528 tristate "Cavium OCTEON GPIO"529 depends on CAVIUM_OCTEON_SOC530 default y531 help532 Say yes here to support the on-chip GPIO lines on the OCTEON533 family of SOCs.534 535config GPIO_OMAP536 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST537 default y if ARCH_OMAP538 depends on ARM539 select GENERIC_IRQ_CHIP540 select GPIOLIB_IRQCHIP541 help542 Say yes here to enable GPIO support for TI OMAP SoCs.543 544config GPIO_PL061545 tristate "PrimeCell PL061 GPIO support"546 depends on ARM_AMBA547 select IRQ_DOMAIN548 select GPIOLIB_IRQCHIP549 help550 Say yes here to support the PrimeCell PL061 GPIO device.551 552config GPIO_PXA553 bool "PXA GPIO support"554 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST555 help556 Say yes here to support the PXA GPIO device.557 558config GPIO_RCAR559 tristate "Renesas R-Car and RZ/G GPIO support"560 depends on ARCH_RENESAS || COMPILE_TEST561 select GPIOLIB_IRQCHIP562 help563 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.564 565config GPIO_RDA566 bool "RDA Micro GPIO controller support"567 depends on ARCH_RDA || COMPILE_TEST568 depends on OF_GPIO569 select GPIO_GENERIC570 select GPIOLIB_IRQCHIP571 help572 Say Y here to support RDA Micro GPIO controller.573 574config GPIO_REALTEK_OTTO575 tristate "Realtek Otto GPIO support"576 depends on MACH_REALTEK_RTL577 default MACH_REALTEK_RTL578 select GPIO_GENERIC579 select GPIOLIB_IRQCHIP580 help581 The GPIO controller on the Otto MIPS platform supports up to two582 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs583 are grouped in four 8-bit wide ports.584 585 When built as a module, the module will be called realtek_otto_gpio.586 587config GPIO_REG588 bool589 help590 A 32-bit single register GPIO fixed in/out implementation. This591 can be used to represent any register as a set of GPIO signals.592 593config GPIO_ROCKCHIP594 tristate "Rockchip GPIO support"595 depends on ARCH_ROCKCHIP || COMPILE_TEST596 select GENERIC_IRQ_CHIP597 select GPIOLIB_IRQCHIP598 default ARCH_ROCKCHIP599 help600 Say yes here to support GPIO on Rockchip SoCs.601 602config GPIO_RTD603 tristate "Realtek DHC GPIO support"604 depends on ARCH_REALTEK605 default y606 select GPIOLIB_IRQCHIP607 help608 This option enables support for GPIOs found on Realtek DHC(Digital609 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,610 RTD1319D, RTD1395, RTD1619 and RTD1619B.611 612 Say yes here to support GPIO functionality and GPIO interrupt on613 Realtek DHC SoCs.614 615config GPIO_SAMA5D2_PIOBU616 tristate "SAMA5D2 PIOBU GPIO support"617 depends on MFD_SYSCON618 depends on OF_GPIO619 depends on ARCH_AT91 || COMPILE_TEST620 select GPIO_SYSCON621 help622 Say yes here to use the PIOBU pins as GPIOs.623 624 PIOBU pins on the SAMA5D2 can be used as GPIOs.625 The difference from regular GPIOs is that they626 maintain their value during backup/self-refresh.627 628config GPIO_SIFIVE629 tristate "SiFive GPIO support"630 depends on OF_GPIO631 select IRQ_DOMAIN_HIERARCHY632 select GPIO_GENERIC633 select GPIOLIB_IRQCHIP634 select REGMAP_MMIO635 help636 Say yes here to support the GPIO device on SiFive SoCs.637 638config GPIO_SIOX639 tristate "SIOX GPIO support"640 depends on SIOX641 select GPIOLIB_IRQCHIP642 help643 Say yes here to support SIOX I/O devices. These are units connected644 via a SIOX bus and have a number of fixed-direction I/O lines.645 646config GPIO_SNPS_CREG647 bool "Synopsys GPIO via CREG (Control REGisters) driver"648 depends on ARC || COMPILE_TEST649 depends on OF_GPIO650 help651 This driver supports GPIOs via CREG on various Synopsys SoCs.652 This is a single-register MMIO GPIO driver for complex cases653 where only several fields in register belong to GPIO lines and654 each GPIO line owns a field with different length and on/off value.655 656config GPIO_SPEAR_SPICS657 bool "ST SPEAr13xx SPI Chip Select as GPIO support"658 depends on PLAT_SPEAR659 select GENERIC_IRQ_CHIP660 help661 Say yes here to support ST SPEAr SPI Chip Select as GPIO device.662 663config GPIO_SPRD664 tristate "Spreadtrum GPIO support"665 depends on ARCH_SPRD || COMPILE_TEST666 depends on OF_GPIO667 select GPIOLIB_IRQCHIP668 help669 Say yes here to support Spreadtrum GPIO device.670 671config GPIO_STP_XWAY672 bool "XWAY STP GPIOs"673 depends on SOC_XWAY || COMPILE_TEST674 depends on OF_GPIO675 help676 This enables support for the Serial To Parallel (STP) unit found on677 XWAY SoC. The STP allows the SoC to drive a shift registers cascade,678 that can be up to 24 bits. This peripheral is aimed at driving LEDs.679 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and680 phy status.681 682config GPIO_SYSCON683 tristate "GPIO based on SYSCON"684 depends on MFD_SYSCON && OF685 help686 Say yes here to support GPIO functionality though SYSCON driver.687 688config GPIO_TANGIER689 tristate690 select GPIOLIB_IRQCHIP691 help692 GPIO support for Intel Tangier and compatible platforms.693 Currently supported:694 - Elkhart Lake695 - Merrifield696 697 If built as a module its name will be gpio-tangier.698 699config GPIO_TB10X700 bool701 select GPIO_GENERIC702 select GENERIC_IRQ_CHIP703 select OF_GPIO704 705config GPIO_TEGRA706 tristate "NVIDIA Tegra GPIO support"707 default ARCH_TEGRA708 depends on ARCH_TEGRA || COMPILE_TEST709 depends on OF_GPIO710 select GPIOLIB_IRQCHIP711 select IRQ_DOMAIN_HIERARCHY712 help713 Say yes here to support GPIO pins on NVIDIA Tegra SoCs.714 715config GPIO_TEGRA186716 tristate "NVIDIA Tegra186 GPIO support"717 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC718 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST719 depends on OF_GPIO720 select GPIOLIB_IRQCHIP721 select IRQ_DOMAIN_HIERARCHY722 help723 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.724 725config GPIO_TS4800726 tristate "TS-4800 DIO blocks and compatibles"727 depends on OF_GPIO728 depends on SOC_IMX51 || COMPILE_TEST729 select GPIO_GENERIC730 help731 This driver support TS-4800 FPGA GPIO controllers.732 733config GPIO_THUNDERX734 tristate "Cavium ThunderX/OCTEON-TX GPIO"735 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)736 depends on PCI_MSI737 select GPIOLIB_IRQCHIP738 select IRQ_DOMAIN_HIERARCHY739 select IRQ_FASTEOI_HIERARCHY_HANDLERS740 help741 Say yes here to support the on-chip GPIO lines on the ThunderX742 and OCTEON-TX families of SoCs.743 744config GPIO_UNIPHIER745 tristate "UniPhier GPIO support"746 depends on ARCH_UNIPHIER || COMPILE_TEST747 depends on OF_GPIO748 select IRQ_DOMAIN_HIERARCHY749 help750 Say yes here to support UniPhier GPIOs.751 752config GPIO_VF610753 bool "VF610 GPIO support"754 default y if SOC_VF610755 depends on ARCH_MXC || COMPILE_TEST756 select GPIOLIB_IRQCHIP757 help758 Say yes here to support i.MX or Vybrid vf610 GPIOs.759 760config GPIO_VISCONTI761 tristate "Toshiba Visconti GPIO support"762 depends on ARCH_VISCONTI || COMPILE_TEST763 depends on OF_GPIO764 select GPIOLIB_IRQCHIP765 select GPIO_GENERIC766 select IRQ_DOMAIN_HIERARCHY767 help768 Say yes here to support GPIO on Tohisba Visconti.769 770config GPIO_WCD934X771 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"772 depends on MFD_WCD934X && OF_GPIO773 help774 This driver is to support GPIO block found on the Qualcomm Technologies775 Inc WCD9340/WCD9341 Audio Codec.776 777config GPIO_XGENE778 bool "APM X-Gene GPIO controller support"779 depends on ARM64 && OF_GPIO780 help781 This driver is to support the GPIO block within the APM X-Gene SoC782 platform's generic flash controller. The GPIO pins are muxed with783 the generic flash controller's address and data pins. Say yes784 here to enable the GFC GPIO functionality.785 786config GPIO_XGENE_SB787 tristate "APM X-Gene GPIO standby controller support"788 depends on (ARCH_XGENE || COMPILE_TEST)789 select GPIO_GENERIC790 select GPIOLIB_IRQCHIP791 select IRQ_DOMAIN_HIERARCHY792 help793 This driver supports the GPIO block within the APM X-Gene794 Standby Domain. Say yes here to enable the GPIO functionality.795 796config GPIO_XILINX797 tristate "Xilinx GPIO support"798 select GPIOLIB_IRQCHIP799 depends on OF_GPIO800 help801 Say yes here to support the Xilinx FPGA GPIO device.802 803config GPIO_XLP804 tristate "Cavium ThunderX2 GPIO support"805 depends on ARCH_THUNDER2 || COMPILE_TEST806 select GPIOLIB_IRQCHIP807 help808 This driver provides support for GPIO interface on Cavium's ThunderX2809 CN99XX SoCs (Originally from Netlogic XLP).810 811 If unsure, say N.812 813config GPIO_XTENSA814 bool "Xtensa GPIO32 support"815 depends on XTENSA816 depends on HAVE_XTENSA_GPIO32817 depends on !SMP818 help819 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)820 and EXPSTATE (output) ports.821 822config GPIO_ZEVIO823 bool "LSI ZEVIO SoC memory mapped GPIOs"824 depends on ARM825 help826 Say yes here to support the GPIO controller in LSI ZEVIO SoCs.827 828config GPIO_ZYNQ829 tristate "Xilinx Zynq GPIO support"830 depends on ARCH_ZYNQ || ARCH_ZYNQMP831 select GPIOLIB_IRQCHIP832 help833 Say yes here to support Xilinx Zynq GPIO controller.834 835config GPIO_ZYNQMP_MODEPIN836 tristate "ZynqMP ps-mode pin GPIO configuration driver"837 depends on ZYNQMP_FIRMWARE838 default ZYNQMP_FIRMWARE839 help840 Say yes here to support the ZynqMP ps-mode pin GPIO configuration841 driver.842 843 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE844 is 4-bits boot mode pins. It sets and gets the status of845 the ps-mode pin. Every pin can be configured as input/output.846 847config GPIO_LOONGSON1848 tristate "Loongson1 GPIO support"849 depends on MACH_LOONGSON32850 select GPIO_GENERIC851 help852 Say Y or M here to support GPIO on Loongson1 SoCs.853 854config GPIO_AMD_FCH855 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"856 help857 This option enables driver for GPIO on AMD's Fusion Controller Hub,858 as found on G-series SOCs (e.g. GX-412TC).859 860 Note: This driver doesn't register itself automatically, as it861 needs to be provided with platform-specific configuration.862 (See e.g. CONFIG_PCENGINES_APU2.)863 864config GPIO_MSC313865 bool "MStar MSC313 GPIO support"866 depends on ARCH_MSTARV7867 default ARCH_MSTARV7868 select GPIOLIB_IRQCHIP869 select IRQ_DOMAIN_HIERARCHY870 help871 Say Y here to support the main GPIO block on MStar/SigmaStar872 ARMv7-based SoCs.873 874config GPIO_IDT3243X875 tristate "IDT 79RC3243X GPIO support"876 depends on MIKROTIK_RB532 || COMPILE_TEST877 select GPIO_GENERIC878 select GPIOLIB_IRQCHIP879 help880 Select this option to enable GPIO driver for881 IDT 79RC3243X-based devices like Mikrotik RB532.882 883 To compile this driver as a module, choose M here: the module will884 be called gpio-idt3243x.885 886endmenu887 888menu "Port-mapped I/O GPIO drivers"889 depends on X86 && HAS_IOPORT # I/O space access890 891config GPIO_VX855892 tristate "VIA VX855/VX875 GPIO"893 depends on PCI894 select MFD_CORE895 select MFD_VX855896 help897 Support access to the VX855/VX875 GPIO lines through the GPIO library.898 899 This driver provides common support for accessing the device.900 Additional drivers must be enabled in order to use the901 functionality of the device.902 903config GPIO_I8255904 tristate905 select GPIO_REGMAP906 help907 Enables support for the i8255 interface library functions. The i8255908 interface library provides functions to facilitate communication with909 interfaces compatible with the venerable Intel 8255 Programmable910 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released911 in the early 1970s but compatible interfaces are nowadays typically912 found embedded in larger VLSI processing chips and FPGA components.913 914 If built as a module its name will be gpio-i8255.915 916config GPIO_104_DIO_48E917 tristate "ACCES 104-DIO-48E GPIO support"918 depends on PC104919 select ISA_BUS_API920 select REGMAP_MMIO921 select REGMAP_IRQ922 select GPIOLIB_IRQCHIP923 select GPIO_I8255924 select I8254925 help926 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,927 104-DIO-24E). The base port addresses for the devices may be928 configured via the base module parameter. The interrupt line numbers929 for the devices may be configured via the irq module parameter.930 931config GPIO_104_IDIO_16932 tristate "ACCES 104-IDIO-16 GPIO support"933 depends on PC104934 select ISA_BUS_API935 select REGMAP_MMIO936 select GPIO_IDIO_16937 help938 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,939 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The940 base port addresses for the devices may be configured via the base941 module parameter. The interrupt line numbers for the devices may be942 configured via the irq module parameter.943 944config GPIO_104_IDI_48945 tristate "ACCES 104-IDI-48 GPIO support"946 depends on PC104947 select ISA_BUS_API948 select REGMAP_MMIO949 select REGMAP_IRQ950 select GPIOLIB_IRQCHIP951 select GPIO_REGMAP952 help953 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,954 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for955 the devices may be configured via the base module parameter. The956 interrupt line numbers for the devices may be configured via the irq957 module parameter.958 959config GPIO_F7188X960 tristate "Fintek and Nuvoton Super-I/O GPIO support"961 help962 This option enables support for GPIOs found on Fintek Super-I/O963 chips F71869, F71869A, F71882FG, F71889F and F81866.964 As well as Nuvoton Super-I/O chip NCT6126D.965 966 To compile this driver as a module, choose M here: the module will967 be called f7188x-gpio.968 969config GPIO_GPIO_MM970 tristate "Diamond Systems GPIO-MM GPIO support"971 depends on PC104972 select ISA_BUS_API973 select REGMAP_MMIO974 select GPIO_I8255975 help976 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.977 978 The Diamond Systems GPIO-MM device features 48 lines of digital I/O979 via the emulation of dual 82C55A PPI chips. This driver provides GPIO980 support for these 48 channels of digital I/O.981 982 The base port addresses for the devices may be configured via the base983 array module parameter.984 985config GPIO_IT87986 tristate "IT87xx GPIO support"987 help988 Say yes here to support GPIO functionality of IT87xx Super I/O chips.989 990 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and991 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as992 well.993 994 To compile this driver as a module, choose M here: the module will995 be called gpio_it87.996 997config GPIO_SCH998 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"999 depends on (X86 || COMPILE_TEST) && ACPI1000 depends on LPC_SCH1001 select GPIOLIB_IRQCHIP1002 help1003 Say yes here to support GPIO interface on Intel Poulsbo SCH,1004 Intel Tunnel Creek processor, Intel Centerton processor or1005 Intel Quark X1000 SoC.1006 1007 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are1008 powered by the core power rail and are turned off during sleep1009 modes (S3 and higher). The remaining four GPIOs are powered by1010 the Intel SCH suspend power supply. These GPIOs remain1011 active during S3. The suspend-powered GPIOs can be used to wake the1012 system from the Suspend-to-RAM state.1013 1014 The Intel Tunnel Creek processor has 5 GPIOs powered by the1015 core power rail and 9 from suspend power supply.1016 1017 The Intel Centerton processor has a total of 30 GPIO pins.1018 Twenty-one are powered by the core power rail and 9 from the1019 suspend power supply.1020 1021 The Intel Quark X1000 SoC has 2 GPIOs powered by the core1022 power well and 6 from the suspend power well.1023 1024config GPIO_SCH311X1025 tristate "SMSC SCH311x SuperI/O GPIO"1026 help1027 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and1028 SCH3116 "Super I/O" chipsets.1029 1030 To compile this driver as a module, choose M here: the module will1031 be called gpio-sch311x.1032 1033config GPIO_TS55001034 tristate "TS-5500 DIO blocks and compatibles"1035 depends on TS5500 || COMPILE_TEST1036 help1037 This driver supports Digital I/O exposed by pin blocks found on some1038 Technologic Systems platforms. It includes, but is not limited to, 31039 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-56001040 LCD port.1041 1042config GPIO_WINBOND1043 tristate "Winbond Super I/O GPIO support"1044 select ISA_BUS_API1045 help1046 This option enables support for GPIOs found on Winbond Super I/O1047 chips.1048 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is1049 supported.1050 1051 You will need to provide a module parameter "gpios", or a1052 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO1053 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).1054 1055 To compile this driver as a module, choose M here: the module will1056 be called gpio-winbond.1057 1058config GPIO_WS16C481059 tristate "WinSystems WS16C48 GPIO support"1060 select ISA_BUS_API1061 select REGMAP_IRQ1062 select REGMAP_MMIO1063 select GPIOLIB_IRQCHIP1064 select GPIO_REGMAP1065 help1066 Enables GPIO support for the WinSystems WS16C48. The base port1067 addresses for the devices may be configured via the base module1068 parameter. The interrupt line numbers for the devices may be1069 configured via the irq module parameter.1070 1071endmenu1072 1073menu "I2C GPIO expanders"1074 depends on I2C1075 1076config GPIO_ADNP1077 tristate "Avionic Design N-bit GPIO expander"1078 depends on OF_GPIO1079 select GPIOLIB_IRQCHIP1080 help1081 This option enables support for N GPIOs found on Avionic Design1082 I2C GPIO expanders. The register space will be extended by powers1083 of two, so the controller will need to accommodate for that. For1084 example: if a controller provides 48 pins, 6 registers will be1085 enough to represent all pins, but the driver will assume a1086 register layout for 64 pins (8 registers).1087 1088config GPIO_FXL64081089 tristate "FXL6408 I2C GPIO expander"1090 select GPIO_REGMAP1091 select REGMAP_I2C1092 help1093 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.1094 1095 To compile this driver as a module, choose M here: the module will1096 be called gpio-fxl6408.1097 1098config GPIO_DS45201099 tristate "DS4520 I2C GPIO expander"1100 select REGMAP_I2C1101 select GPIO_REGMAP1102 help1103 GPIO driver for ADI DS4520 I2C-based GPIO expander.1104 Say yes here to enable the GPIO driver for the ADI DS4520 chip.1105 1106 To compile this driver as a module, choose M here: the module will1107 be called gpio-ds4520.1108 1109config GPIO_GW_PLD1110 tristate "Gateworks PLD GPIO Expander"1111 depends on OF_GPIO1112 help1113 Say yes here to provide access to the Gateworks I2C PLD GPIO1114 Expander. This is used at least on the Cambria GW2358-4.1115 1116config GPIO_MAX73001117 tristate "Maxim MAX7300 GPIO expander"1118 select GPIO_MAX730X1119 help1120 GPIO driver for Maxim MAX7300 I2C-based GPIO expander.1121 1122config GPIO_MAX732X1123 tristate "MAX7319, MAX7320-7327 I2C Port Expanders"1124 help1125 Say yes here to support the MAX7319, MAX7320-7327 series of I2C1126 Port Expanders. Each IO port on these chips has a fixed role of1127 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain1128 Input and Output (designed by 'P'). The combinations are listed1129 below:1130 1131 8 bits: max7319 (8I), max7320 (8O), max7321 (8P),1132 max7322 (4I4O), max7323 (4P4O)1133 1134 16 bits: max7324 (8I8O), max7325 (8P8O),1135 max7326 (4I12O), max7327 (4P12O)1136 1137 Board setup code must specify the model to use, and the start1138 number for these GPIOs.1139 1140config GPIO_MAX732X_IRQ1141 bool "Interrupt controller support for MAX732x"1142 depends on GPIO_MAX732X=y1143 select GPIOLIB_IRQCHIP1144 help1145 Say yes here to enable the max732x to be used as an interrupt1146 controller. It requires the driver to be built in the kernel.1147 1148config GPIO_PCA953X1149 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"1150 select REGMAP_I2C1151 help1152 Say yes here to provide access to several register-oriented1153 SMBus I/O expanders, made mostly by NXP or TI. Compatible1154 models include:1155 1156 4 bits: pca9536, pca95371157 1158 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554,1159 pca9556, pca9557, pca9574, tca6408, tca9554, xra12021160 1161 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575,1162 tca64161163 1164 24 bits: tca64241165 1166 40 bits: pca9505, pca96981167 1168config GPIO_PCA953X_IRQ1169 bool "Interrupt controller support for PCA953x"1170 depends on GPIO_PCA953X1171 select GPIOLIB_IRQCHIP1172 help1173 Say yes here to enable the pca953x to be used as an interrupt1174 controller.1175 1176config GPIO_PCA95701177 tristate "PCA9570 4-Bit I2C GPO expander"1178 help1179 Say yes here to enable the GPO driver for the NXP PCA9570 chip.1180 1181 To compile this driver as a module, choose M here: the module will1182 be called gpio-pca9570.1183 1184config GPIO_PCF857X1185 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"1186 select GPIOLIB_IRQCHIP1187 select IRQ_DOMAIN1188 help1189 Say yes here to provide access to most "quasi-bidirectional" I2C1190 GPIO expanders used for additional digital outputs or inputs.1191 Most of these parts are from NXP, though TI is a second source for1192 some of them. Compatible models include:1193 1194 8 bits: pcf8574, pcf8574a, pca8574, pca8574a,1195 pca9670, pca9672, pca9674, pca9674a,1196 max7328, max73291197 1198 16 bits: pcf8575, pcf8575c, pca8575,1199 pca9671, pca9673, pca96751200 1201 Your board setup code will need to declare the expanders in1202 use, and assign numbers to the GPIOs they expose. Those GPIOs1203 can then be used from drivers and other kernel code, just like1204 other GPIOs, but only accessible from task contexts.1205 1206 This driver provides an in-kernel interface to those GPIOs using1207 platform-neutral GPIO calls.1208 1209config GPIO_TPIC28101210 tristate "TPIC2810 8-Bit I2C GPO expander"1211 help1212 Say yes here to enable the GPO driver for the TI TPIC2810 chip.1213 1214 To compile this driver as a module, choose M here: the module will1215 be called gpio-tpic2810.1216 1217config GPIO_TS49001218 tristate "Technologic Systems FPGA I2C GPIO"1219 depends on SOC_IMX6 || COMPILE_TEST1220 select REGMAP_I2C1221 help1222 Say yes here to enabled the GPIO driver for Technologic's FPGA core.1223 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.1224 1225endmenu1226 1227menu "MFD GPIO expanders"1228 1229config GPIO_ADP55201230 tristate "GPIO Support for ADP5520 PMIC"1231 depends on PMIC_ADP55201232 help1233 This option enables support for on-chip GPIO found1234 on Analog Devices ADP5520 PMICs.1235 1236config GPIO_ADP55851237 tristate "GPIO Support for ADP5585"1238 depends on MFD_ADP55851239 help1240 This option enables support for the GPIO function found in the Analog1241 Devices ADP5585.1242 1243config GPIO_ALTERA_A10SR1244 tristate "Altera Arria10 System Resource GPIO"1245 depends on MFD_ALTERA_A10SR1246 help1247 Driver for Arria10 Development Kit GPIO expansion which1248 includes reads of pushbuttons and DIP switches as well1249 as writes to LEDs.1250 1251config GPIO_ARIZONA1252 tristate "Wolfson Microelectronics Arizona class devices"1253 depends on MFD_ARIZONA1254 help1255 Support for GPIOs on Wolfson Arizona class devices.1256 1257config GPIO_BD718151258 tristate "ROHM BD71815 PMIC GPIO support"1259 depends on MFD_ROHM_BD718281260 help1261 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs1262 available on the ROHM PMIC.1263 1264 This driver can also be built as a module. If so, the module1265 will be called gpio-bd71815.1266 1267config GPIO_BD718281268 tristate "ROHM BD71828 GPIO support"1269 depends on MFD_ROHM_BD718281270 help1271 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs1272 available on the ROHM PMIC in total. The GPIOs are limited to1273 outputs only and pins must be configured to GPIO outputs by1274 OTP. Enable this only if you want to use these pins as outputs.1275 1276 This driver can also be built as a module. If so, the module1277 will be called gpio-bd71828.1278 1279config GPIO_BD9571MWV1280 tristate "ROHM BD9571 GPIO support"1281 depends on MFD_BD9571MWV1282 help1283 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs1284 available on the ROHM PMIC in total, both of which can also1285 generate interrupts.1286 1287 This driver can also be built as a module. If so, the module1288 will be called gpio-bd9571mwv.1289 1290config GPIO_CROS_EC1291 tristate "ChromeOS EC GPIO support"1292 depends on CROS_EC1293 help1294 GPIO driver for the ChromeOS Embedded Controller (EC). GPIOs1295 cannot be set unless the system is unlocked.1296 1297 This driver can also be built as a module. If so, the module1298 will be called gpio-cros-ec.1299 1300config GPIO_CRYSTAL_COVE1301 tristate "GPIO support for Crystal Cove PMIC"1302 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC1303 select GPIOLIB_IRQCHIP1304 help1305 Support for GPIO pins on Crystal Cove PMIC.1306 1307 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC1308 inside.1309 1310 This driver can also be built as a module. If so, the module will be1311 called gpio-crystalcove.1312 1313config GPIO_CS55351314 tristate "AMD CS5535/CS5536 GPIO support"1315 depends on X86 || MIPS || COMPILE_TEST1316 depends on MFD_CS55351317 help1318 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that1319 can be used for quite a number of things. The CS5535/6 is found on1320 AMD Geode and Lemote Yeeloong devices.1321 1322 If unsure, say N.1323 1324config GPIO_DA90521325 tristate "Dialog DA9052 GPIO"1326 depends on PMIC_DA90521327 help1328 Say yes here to enable the GPIO driver for the DA9052 chip.1329 1330config GPIO_DA90551331 tristate "Dialog Semiconductor DA9055 GPIO"1332 depends on MFD_DA90551333 help1334 Say yes here to enable the GPIO driver for the DA9055 chip.1335 1336 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be1337 be controlled by this driver.1338 1339 If driver is built as a module it will be called gpio-da9055.1340 1341config GPIO_DLN21342 tristate "Diolan DLN2 GPIO support"1343 depends on MFD_DLN21344 select GPIOLIB_IRQCHIP1345 1346 help1347 Select this option to enable GPIO driver for the Diolan DLN21348 board.1349 1350 This driver can also be built as a module. If so, the module1351 will be called gpio-dln2.1352 1353config HTC_EGPIO1354 bool "HTC EGPIO support"1355 depends on ARM1356 help1357 This driver supports the CPLD egpio chip present on1358 several HTC phones. It provides basic support for input1359 pins, output pins, and IRQs.1360 1361config GPIO_ELKHARTLAKE1362 tristate "Intel Elkhart Lake PSE GPIO support"1363 depends on X86 || COMPILE_TEST1364 select GPIO_TANGIER1365 help1366 Select this option to enable GPIO support for Intel Elkhart Lake1367 PSE GPIO IP.1368 1369 To compile this driver as a module, choose M here: the module will1370 be called gpio-elkhartlake.1371 1372config GPIO_JANZ_TTL1373 tristate "Janz VMOD-TTL Digital IO Module"1374 depends on MFD_JANZ_CMODIO1375 help1376 This enables support for the Janz VMOD-TTL Digital IO module.1377 This driver provides support for driving the pins in output1378 mode only. Input mode is not supported.1379 1380config GPIO_KEMPLD1381 tristate "Kontron ETX / COMexpress GPIO"1382 depends on MFD_KEMPLD1383 help1384 This enables support for the PLD GPIO interface on some Kontron ETX1385 and COMexpress (ETXexpress) modules.1386 1387 This driver can also be built as a module. If so, the module will be1388 called gpio-kempld.1389 1390config GPIO_LJCA1391 tristate "INTEL La Jolla Cove Adapter GPIO support"1392 depends on USB_LJCA1393 select GPIOLIB_IRQCHIP1394 default USB_LJCA1395 help1396 Select this option to enable GPIO driver for the INTEL1397 La Jolla Cove Adapter (LJCA) board.1398 1399 This driver can also be built as a module. If so, the module1400 will be called gpio-ljca.1401 1402config GPIO_LP39431403 tristate "TI/National Semiconductor LP3943 GPIO expander"1404 depends on MFD_LP39431405 help1406 GPIO driver for LP3943 MFD.1407 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.1408 Open drain outputs are required for this usage.1409 1410config GPIO_LP873X1411 tristate "TI LP873X GPO"1412 depends on MFD_TI_LP873X1413 help1414 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present1415 on LP873X PMICs.1416 1417 This driver can also be built as a module. If so, the module will be1418 called gpio-lp873x.1419 1420config GPIO_LP875651421 tristate "TI LP87565 GPIO"1422 depends on MFD_TI_LP875651423 help1424 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present1425 on LP87565 PMICs.1426 1427 This driver can also be built as a module. If so, the module will be1428 called gpio-lp87565.1429 1430config GPIO_MADERA1431 tristate "Cirrus Logic Madera class codecs"1432 depends on PINCTRL_MADERA1433 help1434 Support for GPIOs on Cirrus Logic Madera class codecs.1435 1436config GPIO_MAX776201437 tristate "GPIO support for PMIC MAX77620 and MAX20024"1438 depends on MFD_MAX776201439 select GPIOLIB_IRQCHIP1440 help1441 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.1442 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The1443 driver also provides interrupt support for each of the GPIOs.1444 Say yes here to enable the max77620 to be used as GPIO controller.1445 1446config GPIO_MAX776501447 tristate "Maxim MAX77650/77651 GPIO support"1448 depends on MFD_MAX776501449 help1450 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.1451 These chips have a single pin that can be configured as GPIO.1452 1453config GPIO_PALMAS1454 bool "TI PALMAS series PMICs GPIO"1455 depends on MFD_PALMAS1456 help1457 Select this option to enable GPIO driver for the TI PALMAS1458 series chip family.1459 1460config GPIO_PMIC_EIC_SPRD1461 tristate "Spreadtrum PMIC EIC support"1462 depends on MFD_SC27XX_PMIC || COMPILE_TEST1463 depends on OF_GPIO1464 select GPIOLIB_IRQCHIP1465 help1466 Say yes here to support Spreadtrum PMIC EIC device.1467 1468config GPIO_RC5T5831469 bool "RICOH RC5T583 GPIO"1470 depends on MFD_RC5T5831471 help1472 Select this option to enable GPIO driver for the Ricoh RC5T5831473 chip family.1474 This driver provides the support for driving/reading the GPIO pins1475 of RC5T583 device through standard GPIO library.1476 1477config GPIO_SL28CPLD1478 tristate "Kontron sl28cpld GPIO support"1479 depends on MFD_SL28CPLD || COMPILE_TEST1480 select GPIO_REGMAP1481 select GPIOLIB_IRQCHIP1482 select REGMAP_IRQ1483 help1484 This enables support for the GPIOs found on the Kontron sl28 CPLD.1485 1486 This driver can also be built as a module. If so, the module will be1487 called gpio-sl28cpld.1488 1489config GPIO_STMPE1490 bool "STMPE GPIOs"1491 depends on MFD_STMPE1492 depends on OF_GPIO1493 select GPIOLIB_IRQCHIP1494 help1495 This enables support for the GPIOs found on the STMPE I/O1496 Expanders.1497 1498config GPIO_TC3589X1499 bool "TC3589X GPIOs"1500 depends on MFD_TC3589X1501 depends on OF_GPIO1502 select GPIOLIB_IRQCHIP1503 help1504 This enables support for the GPIOs found on the TC3589X1505 I/O Expander.1506 1507config GPIO_TIMBERDALE1508 bool "Support for timberdale GPIO IP"1509 depends on MFD_TIMBERDALE1510 help1511 Add support for the GPIO IP in the timberdale FPGA.1512 1513config GPIO_TN48M_CPLD1514 tristate "Delta Networks TN48M switch CPLD GPIO driver"1515 depends on MFD_TN48M_CPLD1516 select GPIO_REGMAP1517 help1518 This enables support for the GPIOs found on the Delta1519 Networks TN48M switch Lattice CPLD. It provides 12 pins in total,1520 they are input-only or output-only type.1521 1522 This driver can also be built as a module. If so, the1523 module will be called gpio-tn48m.1524 1525config GPIO_TPS650861526 tristate "TI TPS65086 GPO"1527 depends on MFD_TPS650861528 help1529 This driver supports the GPO on TI TPS65086x PMICs.1530 1531config GPIO_TPS652181532 tristate "TPS65218 GPIO"1533 depends on MFD_TPS652181534 help1535 Select this option to enable GPIO driver for the TPS652181536 chip family.1537 1538config GPIO_TPS652191539 tristate "TPS65219 GPIO"1540 depends on MFD_TPS652191541 default MFD_TPS652191542 help1543 Select this option to enable GPIO driver for the TPS65219 chip1544 family.1545 GPIO0 is statically configured as either input or output prior to1546 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting1547 is statically configured by NVM. GPIO0 can't be used as a generic1548 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when1549 MULTI_DEVICE_EN=1.1550 1551 This driver can also be built as a module. If so, the module will be1552 called gpio_tps65219.1553 1554config GPIO_TPS6586X1555 bool "TPS6586X GPIO"1556 depends on MFD_TPS6586X1557 help1558 Select this option to enable GPIO driver for the TPS6586X1559 chip family.1560 1561config GPIO_TPS659101562 bool "TPS65910 GPIO"1563 depends on MFD_TPS659101564 help1565 Select this option to enable GPIO driver for the TPS659101566 chip family.1567 1568config GPIO_TPS659121569 tristate "TI TPS65912 GPIO"1570 depends on MFD_TPS659121571 help1572 This driver supports TPS65912 GPIO chip.1573 1574config GPIO_TPS684701575 tristate "TPS68470 GPIO"1576 depends on INTEL_SKL_INT34721577 help1578 Select this option to enable GPIO driver for the TPS684701579 chip family.1580 There are 7 GPIOs and few sensor-related GPIOs supported1581 by the TPS68470. While the 7 GPIOs can be configured as1582 input or output as appropriate, the sensor related GPIOs1583 are "output only" GPIOs.1584 1585config GPIO_TQMX861586 tristate "TQ-Systems TQMx86 GPIO"1587 depends on MFD_TQMX86 || COMPILE_TEST1588 depends on HAS_IOPORT_MAP1589 select GPIOLIB_IRQCHIP1590 help1591 This driver supports GPIO on the TQMX86 IO controller.1592 1593config GPIO_TWL40301594 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"1595 depends on TWL4030_CORE1596 help1597 Say yes here to access the GPIO signals of various multi-function1598 power management chips from Texas Instruments.1599 1600config GPIO_TWL60401601 tristate "TWL6040 GPO"1602 depends on TWL6040_CORE1603 help1604 Say yes here to access the GPO signals of twl60401605 audio chip from Texas Instruments.1606 1607config GPIO_WHISKEY_COVE1608 tristate "GPIO support for Whiskey Cove PMIC"1609 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC1610 select GPIOLIB_IRQCHIP1611 help1612 Support for GPIO pins on Whiskey Cove PMIC.1613 1614 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC1615 inside.1616 1617 This driver can also be built as a module. If so, the module will be1618 called gpio-wcove.1619 1620config GPIO_WM831X1621 tristate "WM831x GPIOs"1622 depends on MFD_WM831X1623 help1624 Say yes here to access the GPIO signals of WM831x power management1625 chips from Wolfson Microelectronics.1626 1627config GPIO_WM83501628 tristate "WM8350 GPIOs"1629 depends on MFD_WM83501630 help1631 Say yes here to access the GPIO signals of WM8350 power management1632 chips from Wolfson Microelectronics.1633 1634config GPIO_WM89941635 tristate "WM8994 GPIOs"1636 depends on MFD_WM89941637 help1638 Say yes here to access the GPIO signals of WM8994 audio hub1639 CODECs from Wolfson Microelectronics.1640 1641endmenu1642 1643menu "PCI GPIO expanders"1644 depends on PCI1645 1646config GPIO_AMD81111647 tristate "AMD 8111 GPIO driver"1648 depends on X86 || COMPILE_TEST1649 depends on HAS_IOPORT_MAP1650 help1651 The AMD 8111 southbridge contains 32 GPIO pins which can be used.1652 1653 Note that usually system firmware/ACPI handles GPIO pins on their1654 own and users might easily break their systems with uncareful usage1655 of this driver!1656 1657 If unsure, say N1658 1659config GPIO_BT8XX1660 tristate "BT8XX GPIO abuser"1661 depends on VIDEO_BT848=n1662 help1663 The BT8xx frame grabber chip has 24 GPIO pins that can be abused1664 as a cheap PCI GPIO card.1665 1666 This chip can be found on Miro, Hauppauge and STB TV-cards.1667 1668 The card needs to be physically altered for using it as a1669 GPIO card. For more information on how to build a GPIO card1670 from a BT8xx TV card, see the documentation file at1671 Documentation/driver-api/gpio/bt8xxgpio.rst1672 1673 If unsure, say N.1674 1675config GPIO_MERRIFIELD1676 tristate "Intel Merrifield GPIO support"1677 depends on X86_INTEL_MID1678 select GPIO_TANGIER1679 help1680 Say Y here to support Intel Merrifield GPIO.1681 1682config GPIO_MLXBF1683 tristate "Mellanox BlueField SoC GPIO"1684 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)1685 select GPIO_GENERIC1686 help1687 Say Y here if you want GPIO support on Mellanox BlueField SoC.1688 1689config GPIO_MLXBF21690 tristate "Mellanox BlueField 2 SoC GPIO"1691 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)1692 select GPIO_GENERIC1693 select GPIOLIB_IRQCHIP1694 help1695 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.1696 1697config GPIO_MLXBF31698 tristate "Mellanox BlueField 3 SoC GPIO"1699 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST1700 select GPIO_GENERIC1701 select GPIOLIB_IRQCHIP1702 help1703 Say Y if you want GPIO support on Mellanox BlueField 3 SoC.1704 This GPIO controller supports interrupt handling and enables the1705 manipulation of certain GPIO pins.1706 This controller should be used in parallel with pinctrl-mlxbf3 to1707 control the desired GPIOs.1708 This driver can also be built as a module called mlxbf3-gpio.1709 1710config GPIO_ML_IOH1711 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"1712 depends on X86 || COMPILE_TEST1713 select GENERIC_IRQ_CHIP1714 help1715 ML7213 is companion chip for Intel Atom E6xx series.1716 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output1717 Hub) which is for IVI (In-Vehicle Infotainment) use.1718 This driver can access the IOH's GPIO device.1719 1720config GPIO_PCH1721 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"1722 depends on X86_32 || MIPS || COMPILE_TEST1723 select GENERIC_IRQ_CHIP1724 help1725 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,1726 which is an IOH (Input/Output Hub) for x86 embedded processor.1727 This driver can access PCH GPIO device.1728 1729 This driver also can be used for LAPIS Semiconductor IOH (Input/1730 Output Hub), ML7223 and ML7831.1731 ML7223 IOH is for MP (Media Phone) use.1732 ML7831 IOH is for general purpose use.1733 ML7223/ML7831 is companion chip for Intel Atom E6xx series.1734 ML7223/ML7831 is completely compatible for Intel EG20T PCH.1735 1736config GPIO_PCI_IDIO_161737 tristate "ACCES PCI-IDIO-16 GPIO support"1738 select REGMAP_MMIO1739 select GPIO_IDIO_161740 help1741 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is1742 generated when any of the inputs change state (low to high or high to1743 low). Input filter control is not supported by this driver, and the1744 input filters are deactivated by this driver.1745 1746config GPIO_PCIE_IDIO_241747 tristate "ACCES PCIe-IDIO-24 GPIO support"1748 select REGMAP_IRQ1749 select REGMAP_MMIO1750 select GPIOLIB_IRQCHIP1751 select GPIO_REGMAP1752 help1753 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,1754 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated1755 when any of the inputs change state (low to high or high to low).1756 Input filter control is not supported by this driver, and the input1757 filters are deactivated by this driver.1758 1759config GPIO_RDC321X1760 tristate "RDC R-321x GPIO support"1761 select MFD_CORE1762 select MFD_RDC321X1763 help1764 Support for the RDC R321x SoC GPIOs over southbridge1765 PCI configuration space.1766 1767config GPIO_SODAVILLE1768 bool "Intel Sodaville GPIO support"1769 depends on X86 && OF1770 select GPIO_GENERIC1771 select GENERIC_IRQ_CHIP1772 help1773 Say Y here to support Intel Sodaville GPIO.1774 1775endmenu1776 1777menu "SPI GPIO expanders"1778 depends on SPI_MASTER1779 1780config GPIO_74X1641781 tristate "74x164 serial-in/parallel-out 8-bits shift register"1782 depends on OF_GPIO1783 help1784 Driver for 74x164 compatible serial-in/parallel-out 8-outputs1785 shift registers. This driver can be used to provide access1786 to more GPIO outputs.1787 1788config GPIO_MAX3191X1789 tristate "Maxim MAX3191x industrial serializer"1790 select CRC81791 help1792 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,1793 MAX31953 and MAX31963 industrial serializer, a daisy-chainable1794 chip to make 8 digital 24V inputs available via SPI. Supports1795 CRC checksums to guard against electromagnetic interference,1796 as well as undervoltage and overtemperature detection.1797 1798config GPIO_MAX73011799 tristate "Maxim MAX7301 GPIO expander"1800 select GPIO_MAX730X1801 help1802 GPIO driver for Maxim MAX7301 SPI-based GPIO expander.1803 1804config GPIO_MC338801805 tristate "Freescale MC33880 high-side/low-side switch"1806 help1807 SPI driver for Freescale MC33880 high-side/low-side switch.1808 This provides GPIO interface supporting inputs and outputs.1809 1810config GPIO_PISOSR1811 tristate "Generic parallel-in/serial-out shift register"1812 help1813 GPIO driver for SPI compatible parallel-in/serial-out shift1814 registers. These are input only devices.1815 1816config GPIO_XRA14031817 tristate "EXAR XRA1403 16-bit GPIO expander"1818 select REGMAP_SPI1819 help1820 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.1821 1822config GPIO_MOXTET1823 tristate "Turris Mox Moxtet bus GPIO expander"1824 depends on MOXTET1825 help1826 Say yes here if you are building for the Turris Mox router.1827 This is the driver needed for configuring the GPIOs via the Moxtet1828 bus. For example the Mox module with SFP cage needs this driver1829 so that phylink can use corresponding GPIOs.1830 1831endmenu1832 1833menu "USB GPIO expanders"1834 depends on USB1835 1836config GPIO_VIPERBOARD1837 tristate "Viperboard GPIO a & b support"1838 depends on MFD_VIPERBOARD1839 help1840 Say yes here to access the GPIO signals of Nano River1841 Technologies Viperboard. There are two GPIO chips on the1842 board: gpioa and gpiob.1843 See viperboard API specification and Nano1844 River Tech's viperboard.h for detailed meaning1845 of the module parameters.1846 1847endmenu1848 1849menu "Virtual GPIO drivers"1850 1851config GPIO_AGGREGATOR1852 tristate "GPIO Aggregator"1853 help1854 Say yes here to enable the GPIO Aggregator, which provides a way to1855 aggregate existing GPIO lines into a new virtual GPIO chip.1856 This can serve the following purposes:1857 - Assign permissions for a collection of GPIO lines to a user,1858 - Export a collection of GPIO lines to a virtual machine,1859 - Provide a generic driver for a GPIO-operated device in an1860 industrial control context, to be operated from userspace using1861 the GPIO chardev interface.1862 1863config GPIO_LATCH1864 tristate "GPIO latch driver"1865 help1866 Say yes here to enable a driver for GPIO multiplexers based on latches1867 connected to other GPIOs.1868 1869config GPIO_MOCKUP1870 tristate "GPIO Testing Driver (DEPRECATED)"1871 select IRQ_SIM1872 help1873 This module is DEPRECATED. Please consider using gpio-sim instead.1874 1875 This enables GPIO Testing driver, which provides a way to test GPIO1876 subsystem through sysfs (or char device) and debugfs.1877 User could use it through the script in1878 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in1879 it.1880 1881config GPIO_VIRTIO1882 tristate "VirtIO GPIO support"1883 depends on VIRTIO1884 select GPIOLIB_IRQCHIP1885 help1886 Say Y here to enable guest support for virtio-based GPIO controllers.1887 1888 These virtual GPIOs can be routed to real GPIOs or attached to1889 simulators on the host (like QEMU).1890 1891config GPIO_SIM1892 tristate "GPIO Simulator Module"1893 select IRQ_SIM1894 select CONFIGFS_FS1895 help1896 This enables the GPIO simulator - a configfs-based GPIO testing1897 driver.1898 1899endmenu1900 1901menu "GPIO Debugging utilities"1902 1903config GPIO_SLOPPY_LOGIC_ANALYZER1904 tristate "Sloppy GPIO logic analyzer"1905 depends on (GPIOLIB || COMPILE_TEST) && CPUSETS && DEBUG_FS && EXPERT1906 help1907 This option enables support for a sloppy logic analyzer using polled1908 GPIOs. Use the 'tools/gpio/gpio-sloppy-logic-analyzer' script with1909 this driver. The script will make it easier to use and will also1910 isolate a CPU for the polling task. Note that this is a last resort1911 analyzer which can be affected by latencies, non-deterministic code1912 paths, or NMIs. However, for e.g. remote development, it may be useful1913 to get a first view and aid further debugging.1914 1915 If this driver is built as a module it will be called1916 'gpio-sloppy-logic-analyzer'.1917 1918config GPIO_VIRTUSER1919 tristate "GPIO Virtual User Testing Module"1920 select DEBUG_FS1921 select CONFIGFS_FS1922 select IRQ_WORK1923 help1924 Say Y here to enable the configurable, configfs-based virtual GPIO1925 consumer testing driver.1926 1927 This driver is aimed as a helper in spotting any regressions in1928 hot-unplug handling in GPIOLIB.1929 1930endmenu1931 1932endif1933