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 && IRQ_DOMAIN_HIERARCHY
 525         select GPIO_GENERIC
 526         select GPIOLIB_IRQCHIP
 527         select REGMAP_MMIO
 528         help
 529           Say yes here to support the GPIO device on SiFive SoCs.
 530
 531 config GPIO_SIOX
 532         tristate "SIOX GPIO support"
 533         depends on SIOX
 534         select GPIOLIB_IRQCHIP
 535         help
 536           Say yes here to support SIOX I/O devices. These are units connected
 537           via a SIOX bus and have a number of fixed-direction I/O lines.
 538
 539 config GPIO_SNPS_CREG
 540         bool "Synopsys GPIO via CREG (Control REGisters) driver"
 541         depends on ARC || COMPILE_TEST
 542         depends on OF_GPIO
 543         help
 544           This driver supports GPIOs via CREG on various Synopsys SoCs.
 545           This is a single-register MMIO GPIO driver for complex cases
 546           where only several fields in register belong to GPIO lines and
 547           each GPIO line owns a field with different length and on/off value.
 548
 549 config GPIO_SPEAR_SPICS
 550         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 551         depends on PLAT_SPEAR
 552         select GENERIC_IRQ_CHIP
 553         help
 554           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 555
 556 config GPIO_SPRD
 557         tristate "Spreadtrum GPIO support"
 558         depends on ARCH_SPRD || COMPILE_TEST
 559         depends on OF_GPIO
 560         select GPIOLIB_IRQCHIP
 561         help
 562           Say yes here to support Spreadtrum GPIO device.
 563
 564 config GPIO_STA2X11
 565         bool "STA2x11/ConneXt GPIO support"
 566         depends on MFD_STA2X11
 567         select GENERIC_IRQ_CHIP
 568         help
 569           Say yes here to support the STA2x11/ConneXt GPIO device.
 570           The GPIO module has 128 GPIO pins with alternate functions.
 571
 572 config GPIO_STP_XWAY
 573         bool "XWAY STP GPIOs"
 574         depends on SOC_XWAY || COMPILE_TEST
 575         depends on OF_GPIO
 576         help
 577           This enables support for the Serial To Parallel (STP) unit found on
 578           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 579           that can be up to 24 bit. This peripheral is aimed at driving leds.
 580           Some of the gpios/leds can be auto updated by the soc with dsl and
 581           phy status.
 582
 583 config GPIO_SYSCON
 584         tristate "GPIO based on SYSCON"
 585         depends on MFD_SYSCON && OF
 586         help
 587           Say yes here to support GPIO functionality though SYSCON driver.
 588
 589 config GPIO_TB10X
 590         bool
 591         select GPIO_GENERIC
 592         select GENERIC_IRQ_CHIP
 593         select OF_GPIO
 594
 595 config GPIO_TEGRA
 596         bool "NVIDIA Tegra GPIO support"
 597         default ARCH_TEGRA
 598         depends on ARCH_TEGRA || COMPILE_TEST
 599         depends on OF_GPIO
 600         help
 601           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 602
 603 config GPIO_TEGRA186
 604         tristate "NVIDIA Tegra186 GPIO support"
 605         default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
 606         depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
 607         depends on OF_GPIO
 608         select GPIOLIB_IRQCHIP
 609         select IRQ_DOMAIN_HIERARCHY
 610         help
 611           Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 612
 613 config GPIO_TS4800
 614         tristate "TS-4800 DIO blocks and compatibles"
 615         depends on OF_GPIO
 616         depends on SOC_IMX51 || COMPILE_TEST
 617         select GPIO_GENERIC
 618         help
 619           This driver support TS-4800 FPGA GPIO controllers.
 620
 621 config GPIO_THUNDERX
 622         tristate "Cavium ThunderX/OCTEON-TX GPIO"
 623         depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 624         depends on PCI_MSI
 625         select GPIOLIB_IRQCHIP
 626         select IRQ_DOMAIN_HIERARCHY
 627         select IRQ_FASTEOI_HIERARCHY_HANDLERS
 628         help
 629           Say yes here to support the on-chip GPIO lines on the ThunderX
 630           and OCTEON-TX families of SoCs.
 631
 632 config GPIO_UNIPHIER
 633         tristate "UniPhier GPIO support"
 634         depends on ARCH_UNIPHIER || COMPILE_TEST
 635         depends on OF_GPIO
 636         select IRQ_DOMAIN_HIERARCHY
 637         help
 638           Say yes here to support UniPhier GPIOs.
 639
 640 config GPIO_VF610
 641         def_bool y
 642         depends on ARCH_MXC && SOC_VF610
 643         select GPIOLIB_IRQCHIP
 644         help
 645           Say yes here to support Vybrid vf610 GPIOs.
 646
 647 config GPIO_VR41XX
 648         tristate "NEC VR4100 series General-purpose I/O Uint support"
 649         depends on CPU_VR41XX
 650         help
 651           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 652
 653 config GPIO_VX855
 654         tristate "VIA VX855/VX875 GPIO"
 655         depends on (X86 || COMPILE_TEST) && PCI
 656         select MFD_CORE
 657         select MFD_VX855
 658         help
 659           Support access to the VX855/VX875 GPIO lines through the gpio library.
 660
 661           This driver provides common support for accessing the device,
 662           additional drivers must be enabled in order to use the
 663           functionality of the device.
 664
 665 config GPIO_WCD934X
 666         tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
 667         depends on MFD_WCD934X && OF_GPIO
 668         help
 669          This driver is to supprot GPIO block found on the Qualcomm Technologies
 670          Inc WCD9340/WCD9341 Audio Codec.
 671
 672 config GPIO_XGENE
 673         bool "APM X-Gene GPIO controller support"
 674         depends on ARM64 && OF_GPIO
 675         help
 676           This driver is to support the GPIO block within the APM X-Gene SoC
 677           platform's generic flash controller. The GPIO pins are muxed with
 678           the generic flash controller's address and data pins. Say yes
 679           here to enable the GFC GPIO functionality.
 680
 681 config GPIO_XGENE_SB
 682         tristate "APM X-Gene GPIO standby controller support"
 683         depends on (ARCH_XGENE || COMPILE_TEST)
 684         select GPIO_GENERIC
 685         select GPIOLIB_IRQCHIP
 686         select IRQ_DOMAIN_HIERARCHY
 687         help
 688           This driver supports the GPIO block within the APM X-Gene
 689           Standby Domain. Say yes here to enable the GPIO functionality.
 690
 691 config GPIO_XILINX
 692         tristate "Xilinx GPIO support"
 693         help
 694           Say yes here to support the Xilinx FPGA GPIO device
 695
 696 config GPIO_XLP
 697         tristate "Netlogic XLP GPIO support"
 698         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 699         select GPIOLIB_IRQCHIP
 700         help
 701           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 702           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 703           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 704           Cavium's ThunderX2 CN99XX SoCs.
 705
 706           If unsure, say N.
 707
 708 config GPIO_XTENSA
 709         bool "Xtensa GPIO32 support"
 710         depends on XTENSA
 711         depends on HAVE_XTENSA_GPIO32
 712         depends on !SMP
 713         help
 714           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 715           and EXPSTATE (output) ports
 716
 717 config GPIO_ZEVIO
 718         bool "LSI ZEVIO SoC memory mapped GPIOs"
 719         depends on ARM && OF_GPIO
 720         help
 721           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 722
 723 config GPIO_ZYNQ
 724         tristate "Xilinx Zynq GPIO support"
 725         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 726         select GPIOLIB_IRQCHIP
 727         help
 728           Say yes here to support Xilinx Zynq GPIO controller.
 729
 730 config GPIO_ZX
 731         bool "ZTE ZX GPIO support"
 732         depends on ARCH_ZX || COMPILE_TEST
 733         select GPIOLIB_IRQCHIP
 734         help
 735           Say yes here to support the GPIO device on ZTE ZX SoCs.
 736
 737 config GPIO_LOONGSON1
 738         tristate "Loongson1 GPIO support"
 739         depends on MACH_LOONGSON32
 740         select GPIO_GENERIC
 741         help
 742           Say Y or M here to support GPIO on Loongson1 SoCs.
 743
 744 config GPIO_AMD_FCH
 745         tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 746         help
 747           This option enables driver for GPIO on AMDs Fusion Controller Hub,
 748           as found on G-series SOCs (eg. GX-412TC)
 749
 750           Note: This driver doesn't registers itself automatically, as it
 751           needs to be provided with platform specific configuration.
 752           (See eg. CONFIG_PCENGINES_APU2.)
 753
 754 config GPIO_MSC313
 755         bool "MStar MSC313 GPIO support"
 756         depends on ARCH_MSTARV7
 757         default ARCH_MSTARV7
 758         select GPIOLIB_IRQCHIP
 759         select IRQ_DOMAIN_HIERARCHY
 760         help
 761           Say Y here to support the main GPIO block on MStar/SigmaStar
 762           ARMv7 based SoCs.
 763
 764 endmenu
 765
 766 menu "Port-mapped I/O GPIO drivers"
 767         depends on X86 # Unconditional I/O space access
 768
 769 config GPIO_104_DIO_48E
 770         tristate "ACCES 104-DIO-48E GPIO support"
 771         depends on PC104
 772         select ISA_BUS_API
 773         select GPIOLIB_IRQCHIP
 774         help
 775           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 776           104-DIO-24E). The base port addresses for the devices may be
 777           configured via the base module parameter. The interrupt line numbers
 778           for the devices may be configured via the irq module parameter.
 779
 780 config GPIO_104_IDIO_16
 781         tristate "ACCES 104-IDIO-16 GPIO support"
 782         depends on PC104
 783         select ISA_BUS_API
 784         select GPIOLIB_IRQCHIP
 785         help
 786           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 787           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 788           base port addresses for the devices may be configured via the base
 789           module parameter. The interrupt line numbers for the devices may be
 790           configured via the irq module parameter.
 791
 792 config GPIO_104_IDI_48
 793         tristate "ACCES 104-IDI-48 GPIO support"
 794         depends on PC104
 795         select ISA_BUS_API
 796         select GPIOLIB_IRQCHIP
 797         help
 798           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 799           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 800           the devices may be configured via the base module parameter. The
 801           interrupt line numbers for the devices may be configured via the irq
 802           module parameter.
 803
 804 config GPIO_F7188X
 805         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 806         help
 807           This option enables support for GPIOs found on Fintek Super-I/O
 808           chips F71869, F71869A, F71882FG, F71889F and F81866.
 809
 810           To compile this driver as a module, choose M here: the module will
 811           be called f7188x-gpio.
 812
 813 config GPIO_GPIO_MM
 814         tristate "Diamond Systems GPIO-MM GPIO support"
 815         depends on PC104
 816         select ISA_BUS_API
 817         help
 818           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 819
 820           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 821           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 822           support for these 48 channels of digital I/O.
 823
 824           The base port addresses for the devices may be configured via the base
 825           array module parameter.
 826
 827 config GPIO_IT87
 828         tristate "IT87xx GPIO support"
 829         help
 830           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 831
 832           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 833           supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 834           well.
 835
 836           To compile this driver as a module, choose M here: the module will
 837           be called gpio_it87
 838
 839 config GPIO_SCH
 840         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 841         depends on (X86 || COMPILE_TEST) && PCI
 842         select MFD_CORE
 843         select LPC_SCH
 844         help
 845           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 846           Intel Tunnel Creek processor, Intel Centerton processor or
 847           Intel Quark X1000 SoC.
 848
 849           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 850           powered by the core power rail and are turned off during sleep
 851           modes (S3 and higher). The remaining four GPIOs are powered by
 852           the Intel SCH suspend power supply. These GPIOs remain
 853           active during S3. The suspend powered GPIOs can be used to wake the
 854           system from the Suspend-to-RAM state.
 855
 856           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 857           core power rail and 9 from suspend power supply.
 858
 859           The Intel Centerton processor has a total of 30 GPIO pins.
 860           Twenty-one are powered by the core power rail and 9 from the
 861           suspend power supply.
 862
 863           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 864           power well and 6 from the suspend power well.
 865
 866 config GPIO_SCH311X
 867         tristate "SMSC SCH311x SuperI/O GPIO"
 868         help
 869           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 870           SCH3116 "Super I/O" chipsets.
 871
 872           To compile this driver as a module, choose M here: the module will
 873           be called gpio-sch311x.
 874
 875 config GPIO_TS5500
 876         tristate "TS-5500 DIO blocks and compatibles"
 877         depends on TS5500 || COMPILE_TEST
 878         help
 879           This driver supports Digital I/O exposed by pin blocks found on some
 880           Technologic Systems platforms. It includes, but is not limited to, 3
 881           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 882           LCD port.
 883
 884 config GPIO_WINBOND
 885         tristate "Winbond Super I/O GPIO support"
 886         select ISA_BUS_API
 887         help
 888           This option enables support for GPIOs found on Winbond Super I/O
 889           chips.
 890           Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 891           supported.
 892
 893           You will need to provide a module parameter "gpios", or a
 894           boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 895           ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 896
 897           To compile this driver as a module, choose M here: the module will
 898           be called gpio-winbond.
 899
 900 config GPIO_WS16C48
 901         tristate "WinSystems WS16C48 GPIO support"
 902         select ISA_BUS_API
 903         select GPIOLIB_IRQCHIP
 904         help
 905           Enables GPIO support for the WinSystems WS16C48. The base port
 906           addresses for the devices may be configured via the base module
 907           parameter. The interrupt line numbers for the devices may be
 908           configured via the irq module parameter.
 909
 910 endmenu
 911
 912 menu "I2C GPIO expanders"
 913         depends on I2C
 914
 915 config GPIO_ADP5588
 916         tristate "ADP5588 I2C GPIO expander"
 917         help
 918           This option enables support for 18 GPIOs found
 919           on Analog Devices ADP5588 GPIO Expanders.
 920
 921 config GPIO_ADP5588_IRQ
 922         bool "Interrupt controller support for ADP5588"
 923         depends on GPIO_ADP5588=y
 924         select GPIOLIB_IRQCHIP
 925         help
 926           Say yes here to enable the adp5588 to be used as an interrupt
 927           controller. It requires the driver to be built in the kernel.
 928
 929 config GPIO_ADNP
 930         tristate "Avionic Design N-bit GPIO expander"
 931         depends on OF_GPIO
 932         select GPIOLIB_IRQCHIP
 933         help
 934           This option enables support for N GPIOs found on Avionic Design
 935           I2C GPIO expanders. The register space will be extended by powers
 936           of two, so the controller will need to accommodate for that. For
 937           example: if a controller provides 48 pins, 6 registers will be
 938           enough to represent all pins, but the driver will assume a
 939           register layout for 64 pins (8 registers).
 940
 941 config GPIO_GW_PLD
 942         tristate "Gateworks PLD GPIO Expander"
 943         depends on OF_GPIO
 944         help
 945           Say yes here to provide access to the Gateworks I2C PLD GPIO
 946           Expander. This is used at least on the Cambria GW2358-4.
 947
 948 config GPIO_MAX7300
 949         tristate "Maxim MAX7300 GPIO expander"
 950         select GPIO_MAX730X
 951         help
 952           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 953
 954 config GPIO_MAX732X
 955         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 956         help
 957           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 958           Port Expanders. Each IO port on these chips has a fixed role of
 959           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 960           Input and Output (designed by 'P'). The combinations are listed
 961           below:
 962
 963           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 964                         max7322 (4I4O), max7323 (4P4O)
 965
 966           16 bits:      max7324 (8I8O), max7325 (8P8O),
 967                         max7326 (4I12O), max7327 (4P12O)
 968
 969           Board setup code must specify the model to use, and the start
 970           number for these GPIOs.
 971
 972 config GPIO_MAX732X_IRQ
 973         bool "Interrupt controller support for MAX732x"
 974         depends on GPIO_MAX732X=y
 975         select GPIOLIB_IRQCHIP
 976         help
 977           Say yes here to enable the max732x to be used as an interrupt
 978           controller. It requires the driver to be built in the kernel.
 979
 980 config GPIO_MC9S08DZ60
 981         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 982         depends on I2C=y && MACH_MX35_3DS
 983         help
 984           Select this to enable the MC9S08DZ60 GPIO driver
 985
 986 config GPIO_PCA953X
 987         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 988         select REGMAP_I2C
 989         help
 990           Say yes here to provide access to several register-oriented
 991           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 992           models include:
 993
 994           4 bits:       pca9536, pca9537
 995
 996           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 997                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 998
 999           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1000                         tca6416
1001
1002           24 bits:      tca6424
1003
1004           40 bits:      pca9505, pca9698
1005
1006 config GPIO_PCA953X_IRQ
1007         bool "Interrupt controller support for PCA953x"
1008         depends on GPIO_PCA953X
1009         select GPIOLIB_IRQCHIP
1010         help
1011           Say yes here to enable the pca953x to be used as an interrupt
1012           controller. It requires the driver to be built in the kernel.
1013
1014 config GPIO_PCA9570
1015         tristate "PCA9570 4-Bit I2C GPO expander"
1016         help
1017           Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1018
1019           To compile this driver as a module, choose M here: the module will
1020           be called gpio-pca9570.
1021
1022 config GPIO_PCF857X
1023         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1024         select GPIOLIB_IRQCHIP
1025         select IRQ_DOMAIN
1026         help
1027           Say yes here to provide access to most "quasi-bidirectional" I2C
1028           GPIO expanders used for additional digital outputs or inputs.
1029           Most of these parts are from NXP, though TI is a second source for
1030           some of them.  Compatible models include:
1031
1032           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1033                     pca9670, pca9672, pca9674, pca9674a,
1034                     max7328, max7329
1035
1036           16 bits:  pcf8575, pcf8575c, pca8575,
1037                     pca9671, pca9673, pca9675
1038
1039           Your board setup code will need to declare the expanders in
1040           use, and assign numbers to the GPIOs they expose.  Those GPIOs
1041           can then be used from drivers and other kernel code, just like
1042           other GPIOs, but only accessible from task contexts.
1043
1044           This driver provides an in-kernel interface to those GPIOs using
1045           platform-neutral GPIO calls.
1046
1047 config GPIO_TPIC2810
1048         tristate "TPIC2810 8-Bit I2C GPO expander"
1049         help
1050           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1051
1052           To compile this driver as a module, choose M here: the module will
1053           be called gpio-tpic2810.
1054
1055 config GPIO_TS4900
1056         tristate "Technologic Systems FPGA I2C GPIO"
1057         depends on SOC_IMX6 || COMPILE_TEST
1058         select REGMAP_I2C
1059         help
1060           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1061           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1062
1063 endmenu
1064
1065 menu "MFD GPIO expanders"
1066
1067 config GPIO_ADP5520
1068         tristate "GPIO Support for ADP5520 PMIC"
1069         depends on PMIC_ADP5520
1070         help
1071           This option enables support for on-chip GPIO found
1072           on Analog Devices ADP5520 PMICs.
1073
1074 config GPIO_ALTERA_A10SR
1075         tristate "Altera Arria10 System Resource GPIO"
1076         depends on MFD_ALTERA_A10SR
1077         help
1078           Driver for Arria10 Development Kit GPIO expansion which
1079           includes reads of pushbuttons and DIP switches as well
1080           as writes to LEDs.
1081
1082 config GPIO_ARIZONA
1083         tristate "Wolfson Microelectronics Arizona class devices"
1084         depends on MFD_ARIZONA
1085         help
1086           Support for GPIOs on Wolfson Arizona class devices.
1087
1088 config GPIO_BD70528
1089         tristate "ROHM BD70528 GPIO support"
1090         depends on MFD_ROHM_BD70528
1091         help
1092           Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1093           available on the ROHM PMIC in total. The GPIOs can also
1094           generate interrupts.
1095
1096           This driver can also be built as a module. If so, the module
1097           will be called gpio-bd70528.
1098
1099 config GPIO_BD71828
1100         tristate "ROHM BD71828 GPIO support"
1101         depends on MFD_ROHM_BD71828
1102         help
1103           Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1104           available on the ROHM PMIC in total. The GPIOs are limited to
1105           outputs only and pins must be configured to GPIO outputs by
1106           OTP. Enable this only if you want to use these pins as outputs.
1107
1108           This driver can also be built as a module. If so, the module
1109           will be called gpio-bd71828.
1110
1111 config GPIO_BD9571MWV
1112         tristate "ROHM BD9571 GPIO support"
1113         depends on MFD_BD9571MWV
1114         help
1115           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1116           available on the ROHM PMIC in total, both of which can also
1117           generate interrupts.
1118
1119           This driver can also be built as a module. If so, the module
1120           will be called gpio-bd9571mwv.
1121
1122 config GPIO_CRYSTAL_COVE
1123         tristate "GPIO support for Crystal Cove PMIC"
1124         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1125         select GPIOLIB_IRQCHIP
1126         help
1127           Support for GPIO pins on Crystal Cove PMIC.
1128
1129           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1130           inside.
1131
1132           This driver can also be built as a module. If so, the module will be
1133           called gpio-crystalcove.
1134
1135 config GPIO_CS5535
1136         tristate "AMD CS5535/CS5536 GPIO support"
1137         depends on X86 || MIPS || COMPILE_TEST
1138         depends on MFD_CS5535
1139         help
1140           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1141           can be used for quite a number of things.  The CS5535/6 is found on
1142           AMD Geode and Lemote Yeeloong devices.
1143
1144           If unsure, say N.
1145
1146 config GPIO_DA9052
1147         tristate "Dialog DA9052 GPIO"
1148         depends on PMIC_DA9052
1149         help
1150           Say yes here to enable the GPIO driver for the DA9052 chip.
1151
1152 config GPIO_DA9055
1153         tristate "Dialog Semiconductor DA9055 GPIO"
1154         depends on MFD_DA9055
1155         help
1156           Say yes here to enable the GPIO driver for the DA9055 chip.
1157
1158           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1159           be controller by this driver.
1160
1161           If driver is built as a module it will be called gpio-da9055.
1162
1163 config GPIO_DLN2
1164         tristate "Diolan DLN2 GPIO support"
1165         depends on MFD_DLN2
1166         select GPIOLIB_IRQCHIP
1167
1168         help
1169           Select this option to enable GPIO driver for the Diolan DLN2
1170           board.
1171
1172           This driver can also be built as a module. If so, the module
1173           will be called gpio-dln2.
1174
1175 config HTC_EGPIO
1176         bool "HTC EGPIO support"
1177         depends on ARM
1178         help
1179           This driver supports the CPLD egpio chip present on
1180           several HTC phones.  It provides basic support for input
1181           pins, output pins, and irqs.
1182
1183 config GPIO_JANZ_TTL
1184         tristate "Janz VMOD-TTL Digital IO Module"
1185         depends on MFD_JANZ_CMODIO
1186         help
1187           This enables support for the Janz VMOD-TTL Digital IO module.
1188           This driver provides support for driving the pins in output
1189           mode only. Input mode is not supported.
1190
1191 config GPIO_KEMPLD
1192         tristate "Kontron ETX / COMexpress GPIO"
1193         depends on MFD_KEMPLD
1194         help
1195           This enables support for the PLD GPIO interface on some Kontron ETX
1196           and COMexpress (ETXexpress) modules.
1197
1198           This driver can also be built as a module. If so, the module will be
1199           called gpio-kempld.
1200
1201 config GPIO_LP3943
1202         tristate "TI/National Semiconductor LP3943 GPIO expander"
1203         depends on MFD_LP3943
1204         help
1205           GPIO driver for LP3943 MFD.
1206           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1207           Open drain outputs are required for this usage.
1208
1209 config GPIO_LP873X
1210         tristate "TI LP873X GPO"
1211         depends on MFD_TI_LP873X
1212         help
1213           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1214           on LP873X PMICs.
1215
1216           This driver can also be built as a module. If so, the module will be
1217           called gpio-lp873x.
1218
1219 config GPIO_LP87565
1220         tristate "TI LP87565 GPIO"
1221         depends on MFD_TI_LP87565
1222         help
1223           This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1224           on LP87565 PMICs.
1225
1226           This driver can also be built as a module. If so, the module will be
1227           called gpio-lp87565.
1228
1229 config GPIO_MADERA
1230         tristate "Cirrus Logic Madera class codecs"
1231         depends on PINCTRL_MADERA
1232         help
1233           Support for GPIOs on Cirrus Logic Madera class codecs.
1234
1235 config GPIO_MAX77620
1236         tristate "GPIO support for PMIC MAX77620 and MAX20024"
1237         depends on MFD_MAX77620
1238         select GPIOLIB_IRQCHIP
1239         help
1240           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1241           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1242           driver also provides interrupt support for each of the gpios.
1243           Say yes here to enable the max77620 to be used as gpio controller.
1244
1245 config GPIO_MAX77650
1246         tristate "Maxim MAX77650/77651 GPIO support"
1247         depends on MFD_MAX77650
1248         help
1249           GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1250           These chips have a single pin that can be configured as GPIO.
1251
1252 config GPIO_MSIC
1253         bool "Intel MSIC mixed signal gpio support"
1254         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1255         help
1256           Enable support for GPIO on intel MSIC controllers found in
1257           intel MID devices
1258
1259 config GPIO_PALMAS
1260         bool "TI PALMAS series PMICs GPIO"
1261         depends on MFD_PALMAS
1262         help
1263           Select this option to enable GPIO driver for the TI PALMAS
1264           series chip family.
1265
1266 config GPIO_RC5T583
1267         bool "RICOH RC5T583 GPIO"
1268         depends on MFD_RC5T583
1269         help
1270           Select this option to enable GPIO driver for the Ricoh RC5T583
1271           chip family.
1272           This driver provides the support for driving/reading the gpio pins
1273           of RC5T583 device through standard gpio library.
1274
1275 config GPIO_SL28CPLD
1276         tristate "Kontron sl28cpld GPIO support"
1277         depends on MFD_SL28CPLD || COMPILE_TEST
1278         select GPIO_REGMAP
1279         select GPIOLIB_IRQCHIP
1280         select REGMAP_IRQ
1281         help
1282           This enables support for the GPIOs found on the Kontron sl28 CPLD.
1283
1284           This driver can also be built as a module. If so, the module will be
1285           called gpio-sl28cpld.
1286
1287 config GPIO_STMPE
1288         bool "STMPE GPIOs"
1289         depends on MFD_STMPE
1290         depends on OF_GPIO
1291         select GPIOLIB_IRQCHIP
1292         help
1293           This enables support for the GPIOs found on the STMPE I/O
1294           Expanders.
1295
1296 config GPIO_TC3589X
1297         bool "TC3589X GPIOs"
1298         depends on MFD_TC3589X
1299         depends on OF_GPIO
1300         select GPIOLIB_IRQCHIP
1301         help
1302           This enables support for the GPIOs found on the TC3589X
1303           I/O Expander.
1304
1305 config GPIO_TIMBERDALE
1306         bool "Support for timberdale GPIO IP"
1307         depends on MFD_TIMBERDALE
1308         help
1309         Add support for the GPIO IP in the timberdale FPGA.
1310
1311 config GPIO_TPS65086
1312         tristate "TI TPS65086 GPO"
1313         depends on MFD_TPS65086
1314         help
1315           This driver supports the GPO on TI TPS65086x PMICs.
1316
1317 config GPIO_TPS65218
1318         tristate "TPS65218 GPIO"
1319         depends on MFD_TPS65218
1320         help
1321           Select this option to enable GPIO driver for the TPS65218
1322           chip family.
1323
1324 config GPIO_TPS6586X
1325         bool "TPS6586X GPIO"
1326         depends on MFD_TPS6586X
1327         help
1328           Select this option to enable GPIO driver for the TPS6586X
1329           chip family.
1330
1331 config GPIO_TPS65910
1332         bool "TPS65910 GPIO"
1333         depends on MFD_TPS65910
1334         help
1335           Select this option to enable GPIO driver for the TPS65910
1336           chip family.
1337
1338 config GPIO_TPS65912
1339         tristate "TI TPS65912 GPIO"
1340         depends on MFD_TPS65912
1341         help
1342           This driver supports TPS65912 gpio chip
1343
1344 config GPIO_TPS68470
1345         bool "TPS68470 GPIO"
1346         depends on MFD_TPS68470
1347         help
1348           Select this option to enable GPIO driver for the TPS68470
1349           chip family.
1350           There are 7 GPIOs and few sensor related GPIOs supported
1351           by the TPS68470. While the 7 GPIOs can be configured as
1352           input or output as appropriate, the sensor related GPIOs
1353           are "output only" GPIOs.
1354
1355           This driver config is bool, as the GPIO functionality
1356           of the TPS68470 must be available before dependent
1357           drivers are loaded.
1358
1359 config GPIO_TQMX86
1360         tristate "TQ-Systems QTMX86 GPIO"
1361         depends on MFD_TQMX86 || COMPILE_TEST
1362         select GPIOLIB_IRQCHIP
1363         help
1364           This driver supports GPIO on the TQMX86 IO controller.
1365
1366 config GPIO_TWL4030
1367         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1368         depends on TWL4030_CORE
1369         help
1370           Say yes here to access the GPIO signals of various multi-function
1371           power management chips from Texas Instruments.
1372
1373 config GPIO_TWL6040
1374         tristate "TWL6040 GPO"
1375         depends on TWL6040_CORE
1376         help
1377           Say yes here to access the GPO signals of twl6040
1378           audio chip from Texas Instruments.
1379
1380 config GPIO_UCB1400
1381         tristate "Philips UCB1400 GPIO"
1382         depends on UCB1400_CORE
1383         help
1384           This enables support for the Philips UCB1400 GPIO pins.
1385           The UCB1400 is an AC97 audio codec.
1386
1387 config GPIO_WHISKEY_COVE
1388         tristate "GPIO support for Whiskey Cove PMIC"
1389         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1390         select GPIOLIB_IRQCHIP
1391         help
1392           Support for GPIO pins on Whiskey Cove PMIC.
1393
1394           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1395           inside.
1396
1397           This driver can also be built as a module. If so, the module will be
1398           called gpio-wcove.
1399
1400 config GPIO_WM831X
1401         tristate "WM831x GPIOs"
1402         depends on MFD_WM831X
1403         help
1404           Say yes here to access the GPIO signals of WM831x power management
1405           chips from Wolfson Microelectronics.
1406
1407 config GPIO_WM8350
1408         tristate "WM8350 GPIOs"
1409         depends on MFD_WM8350
1410         help
1411           Say yes here to access the GPIO signals of WM8350 power management
1412           chips from Wolfson Microelectronics.
1413
1414 config GPIO_WM8994
1415         tristate "WM8994 GPIOs"
1416         depends on MFD_WM8994
1417         help
1418           Say yes here to access the GPIO signals of WM8994 audio hub
1419           CODECs from Wolfson Microelectronics.
1420
1421 endmenu
1422
1423 menu "PCI GPIO expanders"
1424         depends on PCI
1425
1426 config GPIO_AMD8111
1427         tristate "AMD 8111 GPIO driver"
1428         depends on X86 || COMPILE_TEST
1429         help
1430           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1431
1432           Note, that usually system firmware/ACPI handles GPIO pins on their
1433           own and users might easily break their systems with uncarefull usage
1434           of this driver!
1435
1436           If unsure, say N
1437
1438 config GPIO_BT8XX
1439         tristate "BT8XX GPIO abuser"
1440         depends on VIDEO_BT848=n
1441         help
1442           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1443           as a cheap PCI GPIO card.
1444
1445           This chip can be found on Miro, Hauppauge and STB TV-cards.
1446
1447           The card needs to be physically altered for using it as a
1448           GPIO card. For more information on how to build a GPIO card
1449           from a BT8xx TV card, see the documentation file at
1450           Documentation/driver-api/gpio/bt8xxgpio.rst
1451
1452           If unsure, say N.
1453
1454 config GPIO_INTEL_MID
1455         bool "Intel MID GPIO support"
1456         depends on X86_INTEL_MID
1457         select GPIOLIB_IRQCHIP
1458         help
1459           Say Y here to support Intel MID GPIO.
1460
1461 config GPIO_MERRIFIELD
1462         tristate "Intel Merrifield GPIO support"
1463         depends on X86_INTEL_MID
1464         select GPIOLIB_IRQCHIP
1465         help
1466           Say Y here to support Intel Merrifield GPIO.
1467
1468 config GPIO_MLXBF
1469         tristate "Mellanox BlueField SoC GPIO"
1470         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1471         select GPIO_GENERIC
1472         help
1473           Say Y here if you want GPIO support on Mellanox BlueField SoC.
1474
1475 config GPIO_MLXBF2
1476         tristate "Mellanox BlueField 2 SoC GPIO"
1477         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1478         select GPIO_GENERIC
1479         help
1480           Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1481
1482 config GPIO_ML_IOH
1483         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1484         depends on X86 || COMPILE_TEST
1485         select GENERIC_IRQ_CHIP
1486         help
1487           ML7213 is companion chip for Intel Atom E6xx series.
1488           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1489           Hub) which is for IVI(In-Vehicle Infotainment) use.
1490           This driver can access the IOH's GPIO device.
1491
1492 config GPIO_PCH
1493         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1494         depends on X86_32 || MIPS || COMPILE_TEST
1495         select GENERIC_IRQ_CHIP
1496         help
1497           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1498           which is an IOH(Input/Output Hub) for x86 embedded processor.
1499           This driver can access PCH GPIO device.
1500
1501           This driver also can be used for LAPIS Semiconductor IOH(Input/
1502           Output Hub), ML7223 and ML7831.
1503           ML7223 IOH is for MP(Media Phone) use.
1504           ML7831 IOH is for general purpose use.
1505           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1506           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1507
1508 config GPIO_PCI_IDIO_16
1509         tristate "ACCES PCI-IDIO-16 GPIO support"
1510         select GPIOLIB_IRQCHIP
1511         help
1512           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1513           generated when any of the inputs change state (low to high or high to
1514           low). Input filter control is not supported by this driver, and the
1515           input filters are deactivated by this driver.
1516
1517 config GPIO_PCIE_IDIO_24
1518         tristate "ACCES PCIe-IDIO-24 GPIO support"
1519         select GPIOLIB_IRQCHIP
1520         help
1521           Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1522           PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1523           when any of the inputs change state (low to high or high to low).
1524           Input filter control is not supported by this driver, and the input
1525           filters are deactivated by this driver.
1526
1527 config GPIO_RDC321X
1528         tristate "RDC R-321x GPIO support"
1529         select MFD_CORE
1530         select MFD_RDC321X
1531         help
1532           Support for the RDC R321x SoC GPIOs over southbridge
1533           PCI configuration space.
1534
1535 config GPIO_SODAVILLE
1536         bool "Intel Sodaville GPIO support"
1537         depends on X86 && OF
1538         select GPIO_GENERIC
1539         select GENERIC_IRQ_CHIP
1540         help
1541           Say Y here to support Intel Sodaville GPIO.
1542
1543 endmenu
1544
1545 menu "SPI GPIO expanders"
1546         depends on SPI_MASTER
1547
1548 config GPIO_74X164
1549         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1550         depends on OF_GPIO
1551         help
1552           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1553           shift registers. This driver can be used to provide access
1554           to more gpio outputs.
1555
1556 config GPIO_MAX3191X
1557         tristate "Maxim MAX3191x industrial serializer"
1558         select CRC8
1559         help
1560           GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1561           MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1562           chip to make 8 digital 24V inputs available via SPI.  Supports
1563           CRC checksums to guard against electromagnetic interference,
1564           as well as undervoltage and overtemperature detection.
1565
1566 config GPIO_MAX7301
1567         tristate "Maxim MAX7301 GPIO expander"
1568         select GPIO_MAX730X
1569         help
1570           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1571
1572 config GPIO_MC33880
1573         tristate "Freescale MC33880 high-side/low-side switch"
1574         help
1575           SPI driver for Freescale MC33880 high-side/low-side switch.
1576           This provides GPIO interface supporting inputs and outputs.
1577
1578 config GPIO_PISOSR
1579         tristate "Generic parallel-in/serial-out shift register"
1580         help
1581           GPIO driver for SPI compatible parallel-in/serial-out shift
1582           registers. These are input only devices.
1583
1584 config GPIO_XRA1403
1585         tristate "EXAR XRA1403 16-bit GPIO expander"
1586         select REGMAP_SPI
1587         help
1588           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1589
1590 config GPIO_MOXTET
1591         tristate "Turris Mox Moxtet bus GPIO expander"
1592         depends on MOXTET
1593         help
1594           Say yes here if you are building for the Turris Mox router.
1595           This is the driver needed for configuring the GPIOs via the Moxtet
1596           bus. For example the Mox module with SFP cage needs this driver
1597           so that phylink can use corresponding GPIOs.
1598
1599 endmenu
1600
1601 menu "USB GPIO expanders"
1602         depends on USB
1603
1604 config GPIO_VIPERBOARD
1605         tristate "Viperboard GPIO a & b support"
1606         depends on MFD_VIPERBOARD
1607         help
1608           Say yes here to access the GPIO signals of Nano River
1609           Technologies Viperboard. There are two GPIO chips on the
1610           board: gpioa and gpiob.
1611           See viperboard API specification and Nano
1612           River Tech's viperboard.h for detailed meaning
1613           of the module parameters.
1614
1615 endmenu
1616
1617 menu "Virtual GPIO drivers"
1618
1619 config GPIO_AGGREGATOR
1620         tristate "GPIO Aggregator"
1621         help
1622           Say yes here to enable the GPIO Aggregator, which provides a way to
1623           aggregate existing GPIO lines into a new virtual GPIO chip.
1624           This can serve the following purposes:
1625             - Assign permissions for a collection of GPIO lines to a user,
1626             - Export a collection of GPIO lines to a virtual machine,
1627             - Provide a generic driver for a GPIO-operated device in an
1628               industrial control context, to be operated from userspace using
1629               the GPIO chardev interface.
1630
1631 config GPIO_MOCKUP
1632         tristate "GPIO Testing Driver"
1633         select IRQ_SIM
1634         help
1635           This enables GPIO Testing driver, which provides a way to test GPIO
1636           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1637           must be selected for this test.
1638           User could use it through the script in
1639           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1640           it.
1641
1642 endmenu
1643
1644 endif