drivers/gpio/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # GPIO infrastructure and drivers
   4 #
   5
   6 config ARCH_HAVE_CUSTOM_GPIO_H
   7         bool
   8         help
   9           Selecting this config option from the architecture Kconfig allows
  10           the architecture to provide a custom asm/gpio.h implementation
  11           overriding the default implementations.  New uses of this are
  12           strongly discouraged.
  13
  14 menuconfig GPIOLIB
  15         bool "GPIO Support"
  16         help
  17           This enables GPIO support through the generic GPIO library.
  18           You only need to enable this, if you also want to enable
  19           one or more of the GPIO drivers below.
  20
  21           If unsure, say N.
  22
  23 if GPIOLIB
  24
  25 config GPIOLIB_FASTPATH_LIMIT
  26         int "Maximum number of GPIOs for fast path"
  27         range 32 512
  28         default 512
  29         help
  30           This adjusts the point at which certain APIs will switch from
  31           using a stack allocated buffer to a dynamically allocated buffer.
  32
  33           You shouldn't need to change this unless you really need to
  34           optimize either stack space or performance. Change this carefully
  35           since setting an incorrect value could cause stack corruption.
  36
  37 config OF_GPIO
  38         def_bool y
  39         depends on OF
  40         depends on HAS_IOMEM
  41
  42 config GPIO_ACPI
  43         def_bool y
  44         depends on ACPI
  45
  46 config GPIOLIB_IRQCHIP
  47         select IRQ_DOMAIN
  48         bool
  49
  50 config DEBUG_GPIO
  51         bool "Debug GPIO calls"
  52         depends on DEBUG_KERNEL
  53         help
  54           Say Y here to add some extra checks and diagnostics to GPIO calls.
  55           These checks help ensure that GPIOs have been properly initialized
  56           before they are used, and that sleeping calls are not made from
  57           non-sleeping contexts.  They can make bitbanged serial protocols
  58           slower.  The diagnostics help catch the type of setup errors
  59           that are most common when setting up new platforms or boards.
  60
  61 config GPIO_SYSFS
  62         bool "/sys/class/gpio/... (sysfs interface)" if EXPERT
  63         depends on SYSFS
  64         select GPIO_CDEV # We need to encourage the new ABI
  65         help
  66           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 appropriate
  70           ioctl() operations instead.
  71
  72 config GPIO_CDEV
  73         bool
  74         prompt "Character device (/dev/gpiochipN) support" if EXPERT
  75         default y
  76         help
  77           Say Y here to add the character device /dev/gpiochipN interface
  78           for GPIOs. The character device allows userspace to control GPIOs
  79           using ioctl() operations.
  80
  81           Only say N if you are sure that the GPIO character device is not
  82           required.
  83
  84           If unsure, say Y.
  85
  86 config GPIO_CDEV_V1
  87         bool "Support GPIO ABI Version 1"
  88         default y
  89         depends on GPIO_CDEV
  90         help
  91           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
  98 config GPIO_GENERIC
  99         depends on HAS_IOMEM # Only for IOMEM drivers
 100         tristate
 101
 102 config GPIO_REGMAP
 103         depends on REGMAP
 104         tristate
 105
 106 # put drivers in the right section, in alphabetical order
 107
 108 # This symbol is selected by both I2C and SPI expanders
 109 config GPIO_MAX730X
 110         tristate
 111
 112 menu "Memory mapped GPIO drivers"
 113         depends on HAS_IOMEM
 114
 115 config GPIO_74XX_MMIO
 116         tristate "GPIO driver for 74xx-ICs with MMIO access"
 117         depends on OF_GPIO
 118         select GPIO_GENERIC
 119         help
 120           Say yes here to support GPIO functionality for 74xx-compatible ICs
 121           with MMIO access. Compatible models include:
 122             1 bit:      741G125 (Input), 741G74 (Output)
 123             2 bits:     742G125 (Input), 7474 (Output)
 124             4 bits:     74125 (Input), 74175 (Output)
 125             6 bits:     74365 (Input), 74174 (Output)
 126             8 bits:     74244 (Input), 74273 (Output)
 127             16 bits:    741624 (Input), 7416374 (Output)
 128
 129 config GPIO_ALTERA
 130         tristate "Altera GPIO"
 131         depends on OF_GPIO
 132         select GPIOLIB_IRQCHIP
 133         help
 134           Say Y or M here to build support for the Altera PIO device.
 135
 136           If driver is built as a module it will be called gpio-altera.
 137
 138 config GPIO_AMDPT
 139         tristate "AMD Promontory GPIO support"
 140         depends on ACPI
 141         select GPIO_GENERIC
 142         help
 143           driver for GPIO functionality on Promontory IOHub
 144           Require ACPI ASL code to enumerate as a platform device.
 145
 146 config GPIO_ASPEED
 147         tristate "Aspeed GPIO support"
 148         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 149         select GPIOLIB_IRQCHIP
 150         help
 151           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 152
 153 config GPIO_ASPEED_SGPIO
 154         bool "Aspeed SGPIO support"
 155         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 156         select GPIO_GENERIC
 157         select GPIOLIB_IRQCHIP
 158         help
 159           Say Y here to support Aspeed AST2500 SGPIO functionality.
 160
 161 config GPIO_ATH79
 162         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 163         default y if ATH79
 164         depends on ATH79 || COMPILE_TEST
 165         select GPIO_GENERIC
 166         select GPIOLIB_IRQCHIP
 167         help
 168           Select this option to enable GPIO driver for
 169           Atheros AR71XX/AR724X/AR913X SoC devices.
 170
 171 config GPIO_RASPBERRYPI_EXP
 172         tristate "Raspberry Pi 3 GPIO Expander"
 173         default RASPBERRYPI_FIRMWARE
 174         depends on OF_GPIO
 175         # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 176         # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 177         depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 178         help
 179           Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 180           the firmware mailbox to communicate with VideoCore on BCM283x chips.
 181
 182 config GPIO_BCM_KONA
 183         bool "Broadcom Kona GPIO"
 184         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 185         help
 186           Turn on GPIO support for Broadcom "Kona" chips.
 187
 188 config GPIO_BCM_XGS_IPROC
 189         tristate "BRCM XGS iProc GPIO support"
 190         depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
 191         select GPIO_GENERIC
 192         select GPIOLIB_IRQCHIP
 193         default ARCH_BCM_IPROC
 194         help
 195           Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
 196
 197 config GPIO_BRCMSTB
 198         tristate "BRCMSTB GPIO support"
 199         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 200         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 201         select GPIO_GENERIC
 202         select IRQ_DOMAIN
 203         help
 204           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 205
 206 config GPIO_CADENCE
 207         tristate "Cadence GPIO support"
 208         depends on OF_GPIO
 209         select GPIO_GENERIC
 210         select GPIOLIB_IRQCHIP
 211         help
 212           Say yes here to enable support for Cadence GPIO controller.
 213
 214 config GPIO_CLPS711X
 215         tristate "CLPS711X GPIO support"
 216         depends on ARCH_CLPS711X || COMPILE_TEST
 217         select GPIO_GENERIC
 218         help
 219           Say yes here to support GPIO on CLPS711X SoCs.
 220
 221 config GPIO_DAVINCI
 222         bool "TI Davinci/Keystone GPIO support"
 223         default y if ARCH_DAVINCI
 224         depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
 225         help
 226           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 227
 228 config GPIO_DWAPB
 229         tristate "Synopsys DesignWare APB GPIO driver"
 230         select GPIO_GENERIC
 231         select GPIOLIB_IRQCHIP
 232         help
 233           Say Y or M here to build support for the Synopsys DesignWare APB
 234           GPIO block.
 235
 236 config GPIO_EIC_SPRD
 237         tristate "Spreadtrum EIC support"
 238         depends on ARCH_SPRD || COMPILE_TEST
 239         depends on OF_GPIO
 240         select GPIOLIB_IRQCHIP
 241         help
 242           Say yes here to support Spreadtrum EIC device.
 243
 244 config GPIO_EM
 245         tristate "Emma Mobile GPIO"
 246         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 247         help
 248           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 249
 250 config GPIO_EP93XX
 251         def_bool y
 252         depends on ARCH_EP93XX
 253         select GPIO_GENERIC
 254         select GPIOLIB_IRQCHIP
 255
 256 config GPIO_EXAR
 257         tristate "Support for GPIO pins on XR17V352/354/358"
 258         depends on SERIAL_8250_EXAR
 259         select REGMAP_MMIO
 260         help
 261           Selecting this option will enable handling of GPIO pins present
 262           on Exar XR17V352/354/358 chips.
 263
 264 config GPIO_GE_FPGA
 265         bool "GE FPGA based GPIO"
 266         depends on GE_FPGA
 267         select GPIO_GENERIC
 268         help
 269           Support for common GPIO functionality provided on some GE Single Board
 270           Computers.
 271
 272           This driver provides basic support (configure as input or output, read
 273           and write pin state) for GPIO implemented in a number of GE single
 274           board computers.
 275
 276 config GPIO_FTGPIO010
 277         bool "Faraday FTGPIO010 GPIO"
 278         depends on OF_GPIO
 279         select GPIO_GENERIC
 280         select GPIOLIB_IRQCHIP
 281         default (ARCH_GEMINI || ARCH_MOXART)
 282         help
 283           Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 284           Cortina systems Gemini platforms, Moxa ART and others.
 285
 286 config GPIO_GENERIC_PLATFORM
 287         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 288         select GPIO_GENERIC
 289         help
 290           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 291
 292 config GPIO_GRGPIO
 293         tristate "Aeroflex Gaisler GRGPIO support"
 294         depends on OF_GPIO
 295         select GPIO_GENERIC
 296         select IRQ_DOMAIN
 297         help
 298           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 299           VHDL IP core library.
 300
 301 config GPIO_HISI
 302         tristate "HiSilicon GPIO controller driver"
 303         depends on (ARM64 && ACPI) || COMPILE_TEST
 304         select GPIO_GENERIC
 305         select GPIOLIB_IRQCHIP
 306         help
 307           Say Y or M here to build support for the HiSilicon GPIO controller
 308           driver GPIO block.
 309           This GPIO controller support double-edge interrupt and multi-core
 310           concurrent access.
 311
 312 config GPIO_HLWD
 313         tristate "Nintendo Wii (Hollywood) GPIO"
 314         depends on OF_GPIO
 315         select GPIO_GENERIC
 316         select GPIOLIB_IRQCHIP
 317         help
 318           Select this to support the GPIO controller of the Nintendo Wii.
 319
 320           If unsure, say N.
 321
 322 config GPIO_ICH
 323         tristate "Intel ICH GPIO"
 324         depends on PCI && X86
 325         select MFD_CORE
 326         select LPC_ICH
 327         help
 328           Say yes here to support the GPIO functionality of a number of Intel
 329           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 330           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 331           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 332
 333           If unsure, say N.
 334
 335 config GPIO_IOP
 336         tristate "Intel IOP GPIO"
 337         depends on ARCH_IOP32X || COMPILE_TEST
 338         select GPIO_GENERIC
 339         help
 340           Say yes here to support the GPIO functionality of a number of Intel
 341           IOP32X or IOP33X.
 342
 343           If unsure, say N.
 344
 345 config GPIO_IXP4XX
 346         bool "Intel IXP4xx GPIO"
 347         depends on ARM # For <asm/mach-types.h>
 348         depends on ARCH_IXP4XX
 349         select GPIO_GENERIC
 350         select GPIOLIB_IRQCHIP
 351         select IRQ_DOMAIN_HIERARCHY
 352         help
 353           Say yes here to support the GPIO functionality of a number of Intel
 354           IXP4xx series of chips.
 355
 356           If unsure, say N.
 357 config GPIO_LOGICVC
 358         tristate "Xylon LogiCVC GPIO support"
 359         depends on MFD_SYSCON && OF
 360         help
 361           Say yes here to support GPIO functionality of the Xylon LogiCVC
 362           programmable logic block.
 363
 364 config GPIO_LOONGSON
 365         bool "Loongson-2/3 GPIO support"
 366         depends on CPU_LOONGSON2EF || CPU_LOONGSON64
 367         help
 368           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 369
 370 config GPIO_LPC18XX
 371         tristate "NXP LPC18XX/43XX GPIO support"
 372         default y if ARCH_LPC18XX
 373         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 374         select IRQ_DOMAIN_HIERARCHY
 375         help
 376           Select this option to enable GPIO driver for
 377           NXP LPC18XX/43XX devices.
 378
 379 config GPIO_LPC32XX
 380         tristate "NXP LPC32XX GPIO support"
 381         depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
 382         help
 383           Select this option to enable GPIO driver for
 384           NXP LPC32XX devices.
 385
 386 config GPIO_MB86S7X
 387         tristate "GPIO support for Fujitsu MB86S7x Platforms"
 388         help
 389           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 390
 391 config GPIO_MENZ127
 392         tristate "MEN 16Z127 GPIO support"
 393         depends on MCB
 394         select GPIO_GENERIC
 395         help
 396           Say yes here to support the MEN 16Z127 GPIO Controller
 397
 398 config GPIO_MM_LANTIQ
 399         bool "Lantiq Memory mapped GPIOs"
 400         depends on LANTIQ && SOC_XWAY
 401         help
 402           This enables support for memory mapped GPIOs on the External Bus Unit
 403           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 404           created by attaching a 16bit latch to the bus.
 405
 406 config GPIO_MPC5200
 407         def_bool y
 408         depends on PPC_MPC52xx
 409
 410 config GPIO_MPC8XXX
 411         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 412         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 413                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 414                    COMPILE_TEST
 415         select GPIO_GENERIC
 416         select IRQ_DOMAIN
 417         help
 418           Say Y here if you're going to use hardware that connects to the
 419           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 420
 421 config GPIO_MT7621
 422         bool "Mediatek MT7621 GPIO Support"
 423         depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 424         depends on OF_GPIO
 425         select GPIO_GENERIC
 426         select GPIOLIB_IRQCHIP
 427         help
 428           Say yes here to support the Mediatek MT7621 SoC GPIO device
 429
 430 config GPIO_MVEBU
 431         def_bool y
 432         depends on PLAT_ORION || ARCH_MVEBU
 433         depends on OF_GPIO
 434         select GENERIC_IRQ_CHIP
 435         select REGMAP_MMIO
 436
 437 config GPIO_MXC
 438         tristate "i.MX GPIO support"
 439         depends on ARCH_MXC || COMPILE_TEST
 440         select GPIO_GENERIC
 441         select GENERIC_IRQ_CHIP
 442
 443 config GPIO_MXS
 444         def_bool y
 445         depends on ARCH_MXS || COMPILE_TEST
 446         select GPIO_GENERIC
 447         select GENERIC_IRQ_CHIP
 448
 449 config GPIO_OCTEON
 450         tristate "Cavium OCTEON GPIO"
 451         depends on CAVIUM_OCTEON_SOC
 452         default y
 453         help
 454           Say yes here to support the on-chip GPIO lines on the OCTEON
 455           family of SOCs.
 456
 457 config GPIO_OMAP
 458         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 459         default y if ARCH_OMAP
 460         depends on ARM
 461         select GENERIC_IRQ_CHIP
 462         select GPIOLIB_IRQCHIP
 463         help
 464           Say yes here to enable GPIO support for TI OMAP SoCs.
 465
 466 config GPIO_PL061
 467         tristate "PrimeCell PL061 GPIO support"
 468         depends on ARM_AMBA
 469         select IRQ_DOMAIN
 470         select GPIOLIB_IRQCHIP
 471         help
 472           Say yes here to support the PrimeCell PL061 GPIO device
 473
 474 config GPIO_PMIC_EIC_SPRD
 475         tristate "Spreadtrum PMIC EIC support"
 476         depends on MFD_SC27XX_PMIC || COMPILE_TEST
 477         depends on OF_GPIO
 478         select GPIOLIB_IRQCHIP
 479         help
 480           Say yes here to support Spreadtrum PMIC EIC device.
 481
 482 config GPIO_PXA
 483         bool "PXA GPIO support"
 484         depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
 485         help
 486           Say yes here to support the PXA GPIO device
 487
 488 config GPIO_RCAR
 489         tristate "Renesas R-Car GPIO"
 490         depends on ARCH_RENESAS || COMPILE_TEST
 491         select GPIOLIB_IRQCHIP
 492         help
 493           Say yes here to support GPIO on Renesas R-Car SoCs.
 494
 495 config GPIO_RDA
 496         bool "RDA Micro GPIO controller support"
 497         depends on ARCH_RDA || COMPILE_TEST
 498         depends on OF_GPIO
 499         select GPIO_GENERIC
 500         select GPIOLIB_IRQCHIP
 501         help
 502           Say Y here to support RDA Micro GPIO controller.
 503
 504 config GPIO_REG
 505         bool
 506         help
 507           A 32-bit single register GPIO fixed in/out implementation.  This
 508           can be used to represent any register as a set of GPIO signals.
 509
 510 config GPIO_SAMA5D2_PIOBU
 511         tristate "SAMA5D2 PIOBU GPIO support"
 512         depends on MFD_SYSCON
 513         depends on OF_GPIO
 514         select GPIO_SYSCON
 515         help
 516           Say yes here to use the PIOBU pins as GPIOs.
 517
 518           PIOBU pins on the SAMA5D2 can be used as GPIOs.
 519           The difference from regular GPIOs is that they
 520           maintain their value during backup/self-refresh.
 521
 522 config GPIO_SIFIVE
 523         bool "SiFive GPIO support"
 524         depends on OF_GPIO
 525         select IRQ_DOMAIN_HIERARCHY
 526         select GPIO_GENERIC
 527         select GPIOLIB_IRQCHIP
 528         select REGMAP_MMIO
 529         help
 530           Say yes here to support the GPIO device on SiFive SoCs.
 531
 532 config GPIO_SIOX
 533         tristate "SIOX GPIO support"
 534         depends on SIOX
 535         select GPIOLIB_IRQCHIP
 536         help
 537           Say yes here to support SIOX I/O devices. These are units connected
 538           via a SIOX bus and have a number of fixed-direction I/O lines.
 539
 540 config GPIO_SNPS_CREG
 541         bool "Synopsys GPIO via CREG (Control REGisters) driver"
 542         depends on ARC || COMPILE_TEST
 543         depends on OF_GPIO
 544         help
 545           This driver supports GPIOs via CREG on various Synopsys SoCs.
 546           This is a single-register MMIO GPIO driver for complex cases
 547           where only several fields in register belong to GPIO lines and
 548           each GPIO line owns a field with different length and on/off value.
 549
 550 config GPIO_SPEAR_SPICS
 551         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 552         depends on PLAT_SPEAR
 553         select GENERIC_IRQ_CHIP
 554         help
 555           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 556
 557 config GPIO_SPRD
 558         tristate "Spreadtrum GPIO support"
 559         depends on ARCH_SPRD || COMPILE_TEST
 560         depends on OF_GPIO
 561         select GPIOLIB_IRQCHIP
 562         help
 563           Say yes here to support Spreadtrum GPIO device.
 564
 565 config GPIO_STA2X11
 566         bool "STA2x11/ConneXt GPIO support"
 567         depends on MFD_STA2X11
 568         select GENERIC_IRQ_CHIP
 569         help
 570           Say yes here to support the STA2x11/ConneXt GPIO device.
 571           The GPIO module has 128 GPIO pins with alternate functions.
 572
 573 config GPIO_STP_XWAY
 574         bool "XWAY STP GPIOs"
 575         depends on SOC_XWAY || COMPILE_TEST
 576         depends on OF_GPIO
 577         help
 578           This enables support for the Serial To Parallel (STP) unit found on
 579           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 580           that can be up to 24 bit. This peripheral is aimed at driving leds.
 581           Some of the gpios/leds can be auto updated by the soc with dsl and
 582           phy status.
 583
 584 config GPIO_SYSCON
 585         tristate "GPIO based on SYSCON"
 586         depends on MFD_SYSCON && OF
 587         help
 588           Say yes here to support GPIO functionality though SYSCON driver.
 589
 590 config GPIO_TB10X
 591         bool
 592         select GPIO_GENERIC
 593         select GENERIC_IRQ_CHIP
 594         select OF_GPIO
 595
 596 config GPIO_TEGRA
 597         bool "NVIDIA Tegra GPIO support"
 598         default ARCH_TEGRA
 599         depends on ARCH_TEGRA || COMPILE_TEST
 600         depends on OF_GPIO
 601         select GPIOLIB_IRQCHIP
 602         select IRQ_DOMAIN_HIERARCHY
 603         help
 604           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 605
 606 config GPIO_TEGRA186
 607         tristate "NVIDIA Tegra186 GPIO support"
 608         default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
 609         depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
 610         depends on OF_GPIO
 611         select GPIOLIB_IRQCHIP
 612         select IRQ_DOMAIN_HIERARCHY
 613         help
 614           Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 615
 616 config GPIO_TS4800
 617         tristate "TS-4800 DIO blocks and compatibles"
 618         depends on OF_GPIO
 619         depends on SOC_IMX51 || COMPILE_TEST
 620         select GPIO_GENERIC
 621         help
 622           This driver support TS-4800 FPGA GPIO controllers.
 623
 624 config GPIO_THUNDERX
 625         tristate "Cavium ThunderX/OCTEON-TX GPIO"
 626         depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 627         depends on PCI_MSI
 628         select GPIOLIB_IRQCHIP
 629         select IRQ_DOMAIN_HIERARCHY
 630         select IRQ_FASTEOI_HIERARCHY_HANDLERS
 631         help
 632           Say yes here to support the on-chip GPIO lines on the ThunderX
 633           and OCTEON-TX families of SoCs.
 634
 635 config GPIO_UNIPHIER
 636         tristate "UniPhier GPIO support"
 637         depends on ARCH_UNIPHIER || COMPILE_TEST
 638         depends on OF_GPIO
 639         select IRQ_DOMAIN_HIERARCHY
 640         help
 641           Say yes here to support UniPhier GPIOs.
 642
 643 config GPIO_VF610
 644         def_bool y
 645         depends on ARCH_MXC && SOC_VF610
 646         select GPIOLIB_IRQCHIP
 647         help
 648           Say yes here to support Vybrid vf610 GPIOs.
 649
 650 config GPIO_VR41XX
 651         tristate "NEC VR4100 series General-purpose I/O Uint support"
 652         depends on CPU_VR41XX
 653         help
 654           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 655
 656 config GPIO_VX855
 657         tristate "VIA VX855/VX875 GPIO"
 658         depends on (X86 || COMPILE_TEST) && PCI
 659         select MFD_CORE
 660         select MFD_VX855
 661         help
 662           Support access to the VX855/VX875 GPIO lines through the gpio library.
 663
 664           This driver provides common support for accessing the device,
 665           additional drivers must be enabled in order to use the
 666           functionality of the device.
 667
 668 config GPIO_WCD934X
 669         tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
 670         depends on MFD_WCD934X && OF_GPIO
 671         help
 672          This driver is to supprot GPIO block found on the Qualcomm Technologies
 673          Inc WCD9340/WCD9341 Audio Codec.
 674
 675 config GPIO_XGENE
 676         bool "APM X-Gene GPIO controller support"
 677         depends on ARM64 && OF_GPIO
 678         help
 679           This driver is to support the GPIO block within the APM X-Gene SoC
 680           platform's generic flash controller. The GPIO pins are muxed with
 681           the generic flash controller's address and data pins. Say yes
 682           here to enable the GFC GPIO functionality.
 683
 684 config GPIO_XGENE_SB
 685         tristate "APM X-Gene GPIO standby controller support"
 686         depends on (ARCH_XGENE || COMPILE_TEST)
 687         select GPIO_GENERIC
 688         select GPIOLIB_IRQCHIP
 689         select IRQ_DOMAIN_HIERARCHY
 690         help
 691           This driver supports the GPIO block within the APM X-Gene
 692           Standby Domain. Say yes here to enable the GPIO functionality.
 693
 694 config GPIO_XILINX
 695         tristate "Xilinx GPIO support"
 696         help
 697           Say yes here to support the Xilinx FPGA GPIO device
 698
 699 config GPIO_XLP
 700         tristate "Netlogic XLP GPIO support"
 701         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 702         select GPIOLIB_IRQCHIP
 703         help
 704           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 705           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 706           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 707           Cavium's ThunderX2 CN99XX SoCs.
 708
 709           If unsure, say N.
 710
 711 config GPIO_XTENSA
 712         bool "Xtensa GPIO32 support"
 713         depends on XTENSA
 714         depends on HAVE_XTENSA_GPIO32
 715         depends on !SMP
 716         help
 717           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 718           and EXPSTATE (output) ports
 719
 720 config GPIO_ZEVIO
 721         bool "LSI ZEVIO SoC memory mapped GPIOs"
 722         depends on ARM && OF_GPIO
 723         help
 724           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 725
 726 config GPIO_ZYNQ
 727         tristate "Xilinx Zynq GPIO support"
 728         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 729         select GPIOLIB_IRQCHIP
 730         help
 731           Say yes here to support Xilinx Zynq GPIO controller.
 732
 733 config GPIO_ZX
 734         bool "ZTE ZX GPIO support"
 735         depends on ARCH_ZX || COMPILE_TEST
 736         select GPIOLIB_IRQCHIP
 737         help
 738           Say yes here to support the GPIO device on ZTE ZX SoCs.
 739
 740 config GPIO_LOONGSON1
 741         tristate "Loongson1 GPIO support"
 742         depends on MACH_LOONGSON32
 743         select GPIO_GENERIC
 744         help
 745           Say Y or M here to support GPIO on Loongson1 SoCs.
 746
 747 config GPIO_AMD_FCH
 748         tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 749         help
 750           This option enables driver for GPIO on AMDs Fusion Controller Hub,
 751           as found on G-series SOCs (eg. GX-412TC)
 752
 753           Note: This driver doesn't registers itself automatically, as it
 754           needs to be provided with platform specific configuration.
 755           (See eg. CONFIG_PCENGINES_APU2.)
 756
 757 config GPIO_MSC313
 758         bool "MStar MSC313 GPIO support"
 759         depends on ARCH_MSTARV7
 760         default ARCH_MSTARV7
 761         select GPIOLIB_IRQCHIP
 762         select IRQ_DOMAIN_HIERARCHY
 763         help
 764           Say Y here to support the main GPIO block on MStar/SigmaStar
 765           ARMv7 based SoCs.
 766
 767 endmenu
 768
 769 menu "Port-mapped I/O GPIO drivers"
 770         depends on X86 # Unconditional I/O space access
 771
 772 config GPIO_104_DIO_48E
 773         tristate "ACCES 104-DIO-48E GPIO support"
 774         depends on PC104
 775         select ISA_BUS_API
 776         select GPIOLIB_IRQCHIP
 777         help
 778           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 779           104-DIO-24E). The base port addresses for the devices may be
 780           configured via the base module parameter. The interrupt line numbers
 781           for the devices may be configured via the irq module parameter.
 782
 783 config GPIO_104_IDIO_16
 784         tristate "ACCES 104-IDIO-16 GPIO support"
 785         depends on PC104
 786         select ISA_BUS_API
 787         select GPIOLIB_IRQCHIP
 788         help
 789           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 790           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 791           base port addresses for the devices may be configured via the base
 792           module parameter. The interrupt line numbers for the devices may be
 793           configured via the irq module parameter.
 794
 795 config GPIO_104_IDI_48
 796         tristate "ACCES 104-IDI-48 GPIO support"
 797         depends on PC104
 798         select ISA_BUS_API
 799         select GPIOLIB_IRQCHIP
 800         help
 801           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 802           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 803           the devices may be configured via the base module parameter. The
 804           interrupt line numbers for the devices may be configured via the irq
 805           module parameter.
 806
 807 config GPIO_F7188X
 808         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 809         help
 810           This option enables support for GPIOs found on Fintek Super-I/O
 811           chips F71869, F71869A, F71882FG, F71889F and F81866.
 812
 813           To compile this driver as a module, choose M here: the module will
 814           be called f7188x-gpio.
 815
 816 config GPIO_GPIO_MM
 817         tristate "Diamond Systems GPIO-MM GPIO support"
 818         depends on PC104
 819         select ISA_BUS_API
 820         help
 821           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 822
 823           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 824           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 825           support for these 48 channels of digital I/O.
 826
 827           The base port addresses for the devices may be configured via the base
 828           array module parameter.
 829
 830 config GPIO_IT87
 831         tristate "IT87xx GPIO support"
 832         help
 833           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 834
 835           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 836           supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 837           well.
 838
 839           To compile this driver as a module, choose M here: the module will
 840           be called gpio_it87
 841
 842 config GPIO_SCH
 843         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 844         depends on (X86 || COMPILE_TEST) && PCI
 845         select MFD_CORE
 846         select LPC_SCH
 847         help
 848           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 849           Intel Tunnel Creek processor, Intel Centerton processor or
 850           Intel Quark X1000 SoC.
 851
 852           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 853           powered by the core power rail and are turned off during sleep
 854           modes (S3 and higher). The remaining four GPIOs are powered by
 855           the Intel SCH suspend power supply. These GPIOs remain
 856           active during S3. The suspend powered GPIOs can be used to wake the
 857           system from the Suspend-to-RAM state.
 858
 859           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 860           core power rail and 9 from suspend power supply.
 861
 862           The Intel Centerton processor has a total of 30 GPIO pins.
 863           Twenty-one are powered by the core power rail and 9 from the
 864           suspend power supply.
 865
 866           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 867           power well and 6 from the suspend power well.
 868
 869 config GPIO_SCH311X
 870         tristate "SMSC SCH311x SuperI/O GPIO"
 871         help
 872           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 873           SCH3116 "Super I/O" chipsets.
 874
 875           To compile this driver as a module, choose M here: the module will
 876           be called gpio-sch311x.
 877
 878 config GPIO_TS5500
 879         tristate "TS-5500 DIO blocks and compatibles"
 880         depends on TS5500 || COMPILE_TEST
 881         help
 882           This driver supports Digital I/O exposed by pin blocks found on some
 883           Technologic Systems platforms. It includes, but is not limited to, 3
 884           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 885           LCD port.
 886
 887 config GPIO_WINBOND
 888         tristate "Winbond Super I/O GPIO support"
 889         select ISA_BUS_API
 890         help
 891           This option enables support for GPIOs found on Winbond Super I/O
 892           chips.
 893           Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 894           supported.
 895
 896           You will need to provide a module parameter "gpios", or a
 897           boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 898           ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 899
 900           To compile this driver as a module, choose M here: the module will
 901           be called gpio-winbond.
 902
 903 config GPIO_WS16C48
 904         tristate "WinSystems WS16C48 GPIO support"
 905         select ISA_BUS_API
 906         select GPIOLIB_IRQCHIP
 907         help
 908           Enables GPIO support for the WinSystems WS16C48. The base port
 909           addresses for the devices may be configured via the base module
 910           parameter. The interrupt line numbers for the devices may be
 911           configured via the irq module parameter.
 912
 913 endmenu
 914
 915 menu "I2C GPIO expanders"
 916         depends on I2C
 917
 918 config GPIO_ADP5588
 919         tristate "ADP5588 I2C GPIO expander"
 920         help
 921           This option enables support for 18 GPIOs found
 922           on Analog Devices ADP5588 GPIO Expanders.
 923
 924 config GPIO_ADP5588_IRQ
 925         bool "Interrupt controller support for ADP5588"
 926         depends on GPIO_ADP5588=y
 927         select GPIOLIB_IRQCHIP
 928         help
 929           Say yes here to enable the adp5588 to be used as an interrupt
 930           controller. It requires the driver to be built in the kernel.
 931
 932 config GPIO_ADNP
 933         tristate "Avionic Design N-bit GPIO expander"
 934         depends on OF_GPIO
 935         select GPIOLIB_IRQCHIP
 936         help
 937           This option enables support for N GPIOs found on Avionic Design
 938           I2C GPIO expanders. The register space will be extended by powers
 939           of two, so the controller will need to accommodate for that. For
 940           example: if a controller provides 48 pins, 6 registers will be
 941           enough to represent all pins, but the driver will assume a
 942           register layout for 64 pins (8 registers).
 943
 944 config GPIO_GW_PLD
 945         tristate "Gateworks PLD GPIO Expander"
 946         depends on OF_GPIO
 947         help
 948           Say yes here to provide access to the Gateworks I2C PLD GPIO
 949           Expander. This is used at least on the Cambria GW2358-4.
 950
 951 config GPIO_MAX7300
 952         tristate "Maxim MAX7300 GPIO expander"
 953         select GPIO_MAX730X
 954         help
 955           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 956
 957 config GPIO_MAX732X
 958         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 959         help
 960           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 961           Port Expanders. Each IO port on these chips has a fixed role of
 962           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 963           Input and Output (designed by 'P'). The combinations are listed
 964           below:
 965
 966           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 967                         max7322 (4I4O), max7323 (4P4O)
 968
 969           16 bits:      max7324 (8I8O), max7325 (8P8O),
 970                         max7326 (4I12O), max7327 (4P12O)
 971
 972           Board setup code must specify the model to use, and the start
 973           number for these GPIOs.
 974
 975 config GPIO_MAX732X_IRQ
 976         bool "Interrupt controller support for MAX732x"
 977         depends on GPIO_MAX732X=y
 978         select GPIOLIB_IRQCHIP
 979         help
 980           Say yes here to enable the max732x to be used as an interrupt
 981           controller. It requires the driver to be built in the kernel.
 982
 983 config GPIO_MC9S08DZ60
 984         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 985         depends on I2C=y && MACH_MX35_3DS
 986         help
 987           Select this to enable the MC9S08DZ60 GPIO driver
 988
 989 config GPIO_PCA953X
 990         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 991         select REGMAP_I2C
 992         help
 993           Say yes here to provide access to several register-oriented
 994           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 995           models include:
 996
 997           4 bits:       pca9536, pca9537
 998
 999           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1000                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1001
1002           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1003                         tca6416
1004
1005           24 bits:      tca6424
1006
1007           40 bits:      pca9505, pca9698
1008
1009 config GPIO_PCA953X_IRQ
1010         bool "Interrupt controller support for PCA953x"
1011         depends on GPIO_PCA953X
1012         select GPIOLIB_IRQCHIP
1013         help
1014           Say yes here to enable the pca953x to be used as an interrupt
1015           controller. It requires the driver to be built in the kernel.
1016
1017 config GPIO_PCA9570
1018         tristate "PCA9570 4-Bit I2C GPO expander"
1019         help
1020           Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1021
1022           To compile this driver as a module, choose M here: the module will
1023           be called gpio-pca9570.
1024
1025 config GPIO_PCF857X
1026         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1027         select GPIOLIB_IRQCHIP
1028         select IRQ_DOMAIN
1029         help
1030           Say yes here to provide access to most "quasi-bidirectional" I2C
1031           GPIO expanders used for additional digital outputs or inputs.
1032           Most of these parts are from NXP, though TI is a second source for
1033           some of them.  Compatible models include:
1034
1035           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1036                     pca9670, pca9672, pca9674, pca9674a,
1037                     max7328, max7329
1038
1039           16 bits:  pcf8575, pcf8575c, pca8575,
1040                     pca9671, pca9673, pca9675
1041
1042           Your board setup code will need to declare the expanders in
1043           use, and assign numbers to the GPIOs they expose.  Those GPIOs
1044           can then be used from drivers and other kernel code, just like
1045           other GPIOs, but only accessible from task contexts.
1046
1047           This driver provides an in-kernel interface to those GPIOs using
1048           platform-neutral GPIO calls.
1049
1050 config GPIO_TPIC2810
1051         tristate "TPIC2810 8-Bit I2C GPO expander"
1052         help
1053           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1054
1055           To compile this driver as a module, choose M here: the module will
1056           be called gpio-tpic2810.
1057
1058 config GPIO_TS4900
1059         tristate "Technologic Systems FPGA I2C GPIO"
1060         depends on SOC_IMX6 || COMPILE_TEST
1061         select REGMAP_I2C
1062         help
1063           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1064           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1065
1066 endmenu
1067
1068 menu "MFD GPIO expanders"
1069
1070 config GPIO_ADP5520
1071         tristate "GPIO Support for ADP5520 PMIC"
1072         depends on PMIC_ADP5520
1073         help
1074           This option enables support for on-chip GPIO found
1075           on Analog Devices ADP5520 PMICs.
1076
1077 config GPIO_ALTERA_A10SR
1078         tristate "Altera Arria10 System Resource GPIO"
1079         depends on MFD_ALTERA_A10SR
1080         help
1081           Driver for Arria10 Development Kit GPIO expansion which
1082           includes reads of pushbuttons and DIP switches as well
1083           as writes to LEDs.
1084
1085 config GPIO_ARIZONA
1086         tristate "Wolfson Microelectronics Arizona class devices"
1087         depends on MFD_ARIZONA
1088         help
1089           Support for GPIOs on Wolfson Arizona class devices.
1090
1091 config GPIO_BD70528
1092         tristate "ROHM BD70528 GPIO support"
1093         depends on MFD_ROHM_BD70528
1094         help
1095           Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1096           available on the ROHM PMIC in total. The GPIOs can also
1097           generate interrupts.
1098
1099           This driver can also be built as a module. If so, the module
1100           will be called gpio-bd70528.
1101
1102 config GPIO_BD71828
1103         tristate "ROHM BD71828 GPIO support"
1104         depends on MFD_ROHM_BD71828
1105         help
1106           Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1107           available on the ROHM PMIC in total. The GPIOs are limited to
1108           outputs only and pins must be configured to GPIO outputs by
1109           OTP. Enable this only if you want to use these pins as outputs.
1110
1111           This driver can also be built as a module. If so, the module
1112           will be called gpio-bd71828.
1113
1114 config GPIO_BD9571MWV
1115         tristate "ROHM BD9571 GPIO support"
1116         depends on MFD_BD9571MWV
1117         help
1118           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1119           available on the ROHM PMIC in total, both of which can also
1120           generate interrupts.
1121
1122           This driver can also be built as a module. If so, the module
1123           will be called gpio-bd9571mwv.
1124
1125 config GPIO_CRYSTAL_COVE
1126         tristate "GPIO support for Crystal Cove PMIC"
1127         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1128         select GPIOLIB_IRQCHIP
1129         help
1130           Support for GPIO pins on Crystal Cove PMIC.
1131
1132           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1133           inside.
1134
1135           This driver can also be built as a module. If so, the module will be
1136           called gpio-crystalcove.
1137
1138 config GPIO_CS5535
1139         tristate "AMD CS5535/CS5536 GPIO support"
1140         depends on X86 || MIPS || COMPILE_TEST
1141         depends on MFD_CS5535
1142         help
1143           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1144           can be used for quite a number of things.  The CS5535/6 is found on
1145           AMD Geode and Lemote Yeeloong devices.
1146
1147           If unsure, say N.
1148
1149 config GPIO_DA9052
1150         tristate "Dialog DA9052 GPIO"
1151         depends on PMIC_DA9052
1152         help
1153           Say yes here to enable the GPIO driver for the DA9052 chip.
1154
1155 config GPIO_DA9055
1156         tristate "Dialog Semiconductor DA9055 GPIO"
1157         depends on MFD_DA9055
1158         help
1159           Say yes here to enable the GPIO driver for the DA9055 chip.
1160
1161           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1162           be controller by this driver.
1163
1164           If driver is built as a module it will be called gpio-da9055.
1165
1166 config GPIO_DLN2
1167         tristate "Diolan DLN2 GPIO support"
1168         depends on MFD_DLN2
1169         select GPIOLIB_IRQCHIP
1170
1171         help
1172           Select this option to enable GPIO driver for the Diolan DLN2
1173           board.
1174
1175           This driver can also be built as a module. If so, the module
1176           will be called gpio-dln2.
1177
1178 config HTC_EGPIO
1179         bool "HTC EGPIO support"
1180         depends on ARM
1181         help
1182           This driver supports the CPLD egpio chip present on
1183           several HTC phones.  It provides basic support for input
1184           pins, output pins, and irqs.
1185
1186 config GPIO_JANZ_TTL
1187         tristate "Janz VMOD-TTL Digital IO Module"
1188         depends on MFD_JANZ_CMODIO
1189         help
1190           This enables support for the Janz VMOD-TTL Digital IO module.
1191           This driver provides support for driving the pins in output
1192           mode only. Input mode is not supported.
1193
1194 config GPIO_KEMPLD
1195         tristate "Kontron ETX / COMexpress GPIO"
1196         depends on MFD_KEMPLD
1197         help
1198           This enables support for the PLD GPIO interface on some Kontron ETX
1199           and COMexpress (ETXexpress) modules.
1200
1201           This driver can also be built as a module. If so, the module will be
1202           called gpio-kempld.
1203
1204 config GPIO_LP3943
1205         tristate "TI/National Semiconductor LP3943 GPIO expander"
1206         depends on MFD_LP3943
1207         help
1208           GPIO driver for LP3943 MFD.
1209           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1210           Open drain outputs are required for this usage.
1211
1212 config GPIO_LP873X
1213         tristate "TI LP873X GPO"
1214         depends on MFD_TI_LP873X
1215         help
1216           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1217           on LP873X PMICs.
1218
1219           This driver can also be built as a module. If so, the module will be
1220           called gpio-lp873x.
1221
1222 config GPIO_LP87565
1223         tristate "TI LP87565 GPIO"
1224         depends on MFD_TI_LP87565
1225         help
1226           This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1227           on LP87565 PMICs.
1228
1229           This driver can also be built as a module. If so, the module will be
1230           called gpio-lp87565.
1231
1232 config GPIO_MADERA
1233         tristate "Cirrus Logic Madera class codecs"
1234         depends on PINCTRL_MADERA
1235         help
1236           Support for GPIOs on Cirrus Logic Madera class codecs.
1237
1238 config GPIO_MAX77620
1239         tristate "GPIO support for PMIC MAX77620 and MAX20024"
1240         depends on MFD_MAX77620
1241         select GPIOLIB_IRQCHIP
1242         help
1243           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1244           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1245           driver also provides interrupt support for each of the gpios.
1246           Say yes here to enable the max77620 to be used as gpio controller.
1247
1248 config GPIO_MAX77650
1249         tristate "Maxim MAX77650/77651 GPIO support"
1250         depends on MFD_MAX77650
1251         help
1252           GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1253           These chips have a single pin that can be configured as GPIO.
1254
1255 config GPIO_MSIC
1256         bool "Intel MSIC mixed signal gpio support"
1257         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1258         help
1259           Enable support for GPIO on intel MSIC controllers found in
1260           intel MID devices
1261
1262 config GPIO_PALMAS
1263         bool "TI PALMAS series PMICs GPIO"
1264         depends on MFD_PALMAS
1265         help
1266           Select this option to enable GPIO driver for the TI PALMAS
1267           series chip family.
1268
1269 config GPIO_RC5T583
1270         bool "RICOH RC5T583 GPIO"
1271         depends on MFD_RC5T583
1272         help
1273           Select this option to enable GPIO driver for the Ricoh RC5T583
1274           chip family.
1275           This driver provides the support for driving/reading the gpio pins
1276           of RC5T583 device through standard gpio library.
1277
1278 config GPIO_SL28CPLD
1279         tristate "Kontron sl28cpld GPIO support"
1280         depends on MFD_SL28CPLD || COMPILE_TEST
1281         select GPIO_REGMAP
1282         select GPIOLIB_IRQCHIP
1283         select REGMAP_IRQ
1284         help
1285           This enables support for the GPIOs found on the Kontron sl28 CPLD.
1286
1287           This driver can also be built as a module. If so, the module will be
1288           called gpio-sl28cpld.
1289
1290 config GPIO_STMPE
1291         bool "STMPE GPIOs"
1292         depends on MFD_STMPE
1293         depends on OF_GPIO
1294         select GPIOLIB_IRQCHIP
1295         help
1296           This enables support for the GPIOs found on the STMPE I/O
1297           Expanders.
1298
1299 config GPIO_TC3589X
1300         bool "TC3589X GPIOs"
1301         depends on MFD_TC3589X
1302         depends on OF_GPIO
1303         select GPIOLIB_IRQCHIP
1304         help
1305           This enables support for the GPIOs found on the TC3589X
1306           I/O Expander.
1307
1308 config GPIO_TIMBERDALE
1309         bool "Support for timberdale GPIO IP"
1310         depends on MFD_TIMBERDALE
1311         help
1312         Add support for the GPIO IP in the timberdale FPGA.
1313
1314 config GPIO_TPS65086
1315         tristate "TI TPS65086 GPO"
1316         depends on MFD_TPS65086
1317         help
1318           This driver supports the GPO on TI TPS65086x PMICs.
1319
1320 config GPIO_TPS65218
1321         tristate "TPS65218 GPIO"
1322         depends on MFD_TPS65218
1323         help
1324           Select this option to enable GPIO driver for the TPS65218
1325           chip family.
1326
1327 config GPIO_TPS6586X
1328         bool "TPS6586X GPIO"
1329         depends on MFD_TPS6586X
1330         help
1331           Select this option to enable GPIO driver for the TPS6586X
1332           chip family.
1333
1334 config GPIO_TPS65910
1335         bool "TPS65910 GPIO"
1336         depends on MFD_TPS65910
1337         help
1338           Select this option to enable GPIO driver for the TPS65910
1339           chip family.
1340
1341 config GPIO_TPS65912
1342         tristate "TI TPS65912 GPIO"
1343         depends on MFD_TPS65912
1344         help
1345           This driver supports TPS65912 gpio chip
1346
1347 config GPIO_TPS68470
1348         bool "TPS68470 GPIO"
1349         depends on MFD_TPS68470
1350         help
1351           Select this option to enable GPIO driver for the TPS68470
1352           chip family.
1353           There are 7 GPIOs and few sensor related GPIOs supported
1354           by the TPS68470. While the 7 GPIOs can be configured as
1355           input or output as appropriate, the sensor related GPIOs
1356           are "output only" GPIOs.
1357
1358           This driver config is bool, as the GPIO functionality
1359           of the TPS68470 must be available before dependent
1360           drivers are loaded.
1361
1362 config GPIO_TQMX86
1363         tristate "TQ-Systems QTMX86 GPIO"
1364         depends on MFD_TQMX86 || COMPILE_TEST
1365         select GPIOLIB_IRQCHIP
1366         help
1367           This driver supports GPIO on the TQMX86 IO controller.
1368
1369 config GPIO_TWL4030
1370         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1371         depends on TWL4030_CORE
1372         help
1373           Say yes here to access the GPIO signals of various multi-function
1374           power management chips from Texas Instruments.
1375
1376 config GPIO_TWL6040
1377         tristate "TWL6040 GPO"
1378         depends on TWL6040_CORE
1379         help
1380           Say yes here to access the GPO signals of twl6040
1381           audio chip from Texas Instruments.
1382
1383 config GPIO_UCB1400
1384         tristate "Philips UCB1400 GPIO"
1385         depends on UCB1400_CORE
1386         help
1387           This enables support for the Philips UCB1400 GPIO pins.
1388           The UCB1400 is an AC97 audio codec.
1389
1390 config GPIO_WHISKEY_COVE
1391         tristate "GPIO support for Whiskey Cove PMIC"
1392         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1393         select GPIOLIB_IRQCHIP
1394         help
1395           Support for GPIO pins on Whiskey Cove PMIC.
1396
1397           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1398           inside.
1399
1400           This driver can also be built as a module. If so, the module will be
1401           called gpio-wcove.
1402
1403 config GPIO_WM831X
1404         tristate "WM831x GPIOs"
1405         depends on MFD_WM831X
1406         help
1407           Say yes here to access the GPIO signals of WM831x power management
1408           chips from Wolfson Microelectronics.
1409
1410 config GPIO_WM8350
1411         tristate "WM8350 GPIOs"
1412         depends on MFD_WM8350
1413         help
1414           Say yes here to access the GPIO signals of WM8350 power management
1415           chips from Wolfson Microelectronics.
1416
1417 config GPIO_WM8994
1418         tristate "WM8994 GPIOs"
1419         depends on MFD_WM8994
1420         help
1421           Say yes here to access the GPIO signals of WM8994 audio hub
1422           CODECs from Wolfson Microelectronics.
1423
1424 endmenu
1425
1426 menu "PCI GPIO expanders"
1427         depends on PCI
1428
1429 config GPIO_AMD8111
1430         tristate "AMD 8111 GPIO driver"
1431         depends on X86 || COMPILE_TEST
1432         help
1433           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1434
1435           Note, that usually system firmware/ACPI handles GPIO pins on their
1436           own and users might easily break their systems with uncarefull usage
1437           of this driver!
1438
1439           If unsure, say N
1440
1441 config GPIO_BT8XX
1442         tristate "BT8XX GPIO abuser"
1443         depends on VIDEO_BT848=n
1444         help
1445           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1446           as a cheap PCI GPIO card.
1447
1448           This chip can be found on Miro, Hauppauge and STB TV-cards.
1449
1450           The card needs to be physically altered for using it as a
1451           GPIO card. For more information on how to build a GPIO card
1452           from a BT8xx TV card, see the documentation file at
1453           Documentation/driver-api/gpio/bt8xxgpio.rst
1454
1455           If unsure, say N.
1456
1457 config GPIO_INTEL_MID
1458         bool "Intel MID GPIO support"
1459         depends on X86_INTEL_MID
1460         select GPIOLIB_IRQCHIP
1461         help
1462           Say Y here to support Intel MID GPIO.
1463
1464 config GPIO_MERRIFIELD
1465         tristate "Intel Merrifield GPIO support"
1466         depends on X86_INTEL_MID
1467         select GPIOLIB_IRQCHIP
1468         help
1469           Say Y here to support Intel Merrifield GPIO.
1470
1471 config GPIO_MLXBF
1472         tristate "Mellanox BlueField SoC GPIO"
1473         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1474         select GPIO_GENERIC
1475         help
1476           Say Y here if you want GPIO support on Mellanox BlueField SoC.
1477
1478 config GPIO_MLXBF2
1479         tristate "Mellanox BlueField 2 SoC GPIO"
1480         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1481         select GPIO_GENERIC
1482         help
1483           Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1484
1485 config GPIO_ML_IOH
1486         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1487         depends on X86 || COMPILE_TEST
1488         select GENERIC_IRQ_CHIP
1489         help
1490           ML7213 is companion chip for Intel Atom E6xx series.
1491           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1492           Hub) which is for IVI(In-Vehicle Infotainment) use.
1493           This driver can access the IOH's GPIO device.
1494
1495 config GPIO_PCH
1496         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1497         depends on X86_32 || MIPS || COMPILE_TEST
1498         select GENERIC_IRQ_CHIP
1499         help
1500           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1501           which is an IOH(Input/Output Hub) for x86 embedded processor.
1502           This driver can access PCH GPIO device.
1503
1504           This driver also can be used for LAPIS Semiconductor IOH(Input/
1505           Output Hub), ML7223 and ML7831.
1506           ML7223 IOH is for MP(Media Phone) use.
1507           ML7831 IOH is for general purpose use.
1508           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1509           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1510
1511 config GPIO_PCI_IDIO_16
1512         tristate "ACCES PCI-IDIO-16 GPIO support"
1513         select GPIOLIB_IRQCHIP
1514         help
1515           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1516           generated when any of the inputs change state (low to high or high to
1517           low). Input filter control is not supported by this driver, and the
1518           input filters are deactivated by this driver.
1519
1520 config GPIO_PCIE_IDIO_24
1521         tristate "ACCES PCIe-IDIO-24 GPIO support"
1522         select GPIOLIB_IRQCHIP
1523         help
1524           Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1525           PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1526           when any of the inputs change state (low to high or high to low).
1527           Input filter control is not supported by this driver, and the input
1528           filters are deactivated by this driver.
1529
1530 config GPIO_RDC321X
1531         tristate "RDC R-321x GPIO support"
1532         select MFD_CORE
1533         select MFD_RDC321X
1534         help
1535           Support for the RDC R321x SoC GPIOs over southbridge
1536           PCI configuration space.
1537
1538 config GPIO_SODAVILLE
1539         bool "Intel Sodaville GPIO support"
1540         depends on X86 && OF
1541         select GPIO_GENERIC
1542         select GENERIC_IRQ_CHIP
1543         help
1544           Say Y here to support Intel Sodaville GPIO.
1545
1546 endmenu
1547
1548 menu "SPI GPIO expanders"
1549         depends on SPI_MASTER
1550
1551 config GPIO_74X164
1552         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1553         depends on OF_GPIO
1554         help
1555           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1556           shift registers. This driver can be used to provide access
1557           to more gpio outputs.
1558
1559 config GPIO_MAX3191X
1560         tristate "Maxim MAX3191x industrial serializer"
1561         select CRC8
1562         help
1563           GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1564           MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1565           chip to make 8 digital 24V inputs available via SPI.  Supports
1566           CRC checksums to guard against electromagnetic interference,
1567           as well as undervoltage and overtemperature detection.
1568
1569 config GPIO_MAX7301
1570         tristate "Maxim MAX7301 GPIO expander"
1571         select GPIO_MAX730X
1572         help
1573           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1574
1575 config GPIO_MC33880
1576         tristate "Freescale MC33880 high-side/low-side switch"
1577         help
1578           SPI driver for Freescale MC33880 high-side/low-side switch.
1579           This provides GPIO interface supporting inputs and outputs.
1580
1581 config GPIO_PISOSR
1582         tristate "Generic parallel-in/serial-out shift register"
1583         help
1584           GPIO driver for SPI compatible parallel-in/serial-out shift
1585           registers. These are input only devices.
1586
1587 config GPIO_XRA1403
1588         tristate "EXAR XRA1403 16-bit GPIO expander"
1589         select REGMAP_SPI
1590         help
1591           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1592
1593 config GPIO_MOXTET
1594         tristate "Turris Mox Moxtet bus GPIO expander"
1595         depends on MOXTET
1596         help
1597           Say yes here if you are building for the Turris Mox router.
1598           This is the driver needed for configuring the GPIOs via the Moxtet
1599           bus. For example the Mox module with SFP cage needs this driver
1600           so that phylink can use corresponding GPIOs.
1601
1602 endmenu
1603
1604 menu "USB GPIO expanders"
1605         depends on USB
1606
1607 config GPIO_VIPERBOARD
1608         tristate "Viperboard GPIO a & b support"
1609         depends on MFD_VIPERBOARD
1610         help
1611           Say yes here to access the GPIO signals of Nano River
1612           Technologies Viperboard. There are two GPIO chips on the
1613           board: gpioa and gpiob.
1614           See viperboard API specification and Nano
1615           River Tech's viperboard.h for detailed meaning
1616           of the module parameters.
1617
1618 endmenu
1619
1620 menu "Virtual GPIO drivers"
1621
1622 config GPIO_AGGREGATOR
1623         tristate "GPIO Aggregator"
1624         help
1625           Say yes here to enable the GPIO Aggregator, which provides a way to
1626           aggregate existing GPIO lines into a new virtual GPIO chip.
1627           This can serve the following purposes:
1628             - Assign permissions for a collection of GPIO lines to a user,
1629             - Export a collection of GPIO lines to a virtual machine,
1630             - Provide a generic driver for a GPIO-operated device in an
1631               industrial control context, to be operated from userspace using
1632               the GPIO chardev interface.
1633
1634 config GPIO_MOCKUP
1635         tristate "GPIO Testing Driver"
1636         select IRQ_SIM
1637         help
1638           This enables GPIO Testing driver, which provides a way to test GPIO
1639           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1640           must be selected for this test.
1641           User could use it through the script in
1642           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1643           it.
1644
1645 endmenu
1646
1647 endif