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 X86
 325         depends on LPC_ICH
 326         help
 327           Say yes here to support the GPIO functionality of a number of Intel
 328           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 329           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 330           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 331
 332           If unsure, say N.
 333
 334 config GPIO_IOP
 335         tristate "Intel IOP GPIO"
 336         depends on ARCH_IOP32X || COMPILE_TEST
 337         select GPIO_GENERIC
 338         help
 339           Say yes here to support the GPIO functionality of a number of Intel
 340           IOP32X or IOP33X.
 341
 342           If unsure, say N.
 343
 344 config GPIO_IXP4XX
 345         bool "Intel IXP4xx GPIO"
 346         depends on ARM # For <asm/mach-types.h>
 347         depends on ARCH_IXP4XX
 348         select GPIO_GENERIC
 349         select GPIOLIB_IRQCHIP
 350         select IRQ_DOMAIN_HIERARCHY
 351         help
 352           Say yes here to support the GPIO functionality of a number of Intel
 353           IXP4xx series of chips.
 354
 355           If unsure, say N.
 356 config GPIO_LOGICVC
 357         tristate "Xylon LogiCVC GPIO support"
 358         depends on MFD_SYSCON && OF
 359         help
 360           Say yes here to support GPIO functionality of the Xylon LogiCVC
 361           programmable logic block.
 362
 363 config GPIO_LOONGSON
 364         bool "Loongson-2/3 GPIO support"
 365         depends on CPU_LOONGSON2EF || CPU_LOONGSON64
 366         help
 367           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 368
 369 config GPIO_LPC18XX
 370         tristate "NXP LPC18XX/43XX GPIO support"
 371         default y if ARCH_LPC18XX
 372         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 373         select IRQ_DOMAIN_HIERARCHY
 374         help
 375           Select this option to enable GPIO driver for
 376           NXP LPC18XX/43XX devices.
 377
 378 config GPIO_LPC32XX
 379         tristate "NXP LPC32XX GPIO support"
 380         depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
 381         help
 382           Select this option to enable GPIO driver for
 383           NXP LPC32XX devices.
 384
 385 config GPIO_MB86S7X
 386         tristate "GPIO support for Fujitsu MB86S7x Platforms"
 387         help
 388           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 389
 390 config GPIO_MENZ127
 391         tristate "MEN 16Z127 GPIO support"
 392         depends on MCB
 393         select GPIO_GENERIC
 394         help
 395           Say yes here to support the MEN 16Z127 GPIO Controller
 396
 397 config GPIO_MM_LANTIQ
 398         bool "Lantiq Memory mapped GPIOs"
 399         depends on LANTIQ && SOC_XWAY
 400         help
 401           This enables support for memory mapped GPIOs on the External Bus Unit
 402           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 403           created by attaching a 16bit latch to the bus.
 404
 405 config GPIO_MPC5200
 406         def_bool y
 407         depends on PPC_MPC52xx
 408
 409 config GPIO_MPC8XXX
 410         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 411         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 412                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 413                    COMPILE_TEST
 414         select GPIO_GENERIC
 415         select IRQ_DOMAIN
 416         help
 417           Say Y here if you're going to use hardware that connects to the
 418           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 419
 420 config GPIO_MT7621
 421         bool "Mediatek MT7621 GPIO Support"
 422         depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 423         depends on OF_GPIO
 424         select GPIO_GENERIC
 425         select GPIOLIB_IRQCHIP
 426         help
 427           Say yes here to support the Mediatek MT7621 SoC GPIO device
 428
 429 config GPIO_MVEBU
 430         def_bool y
 431         depends on PLAT_ORION || ARCH_MVEBU
 432         depends on OF_GPIO
 433         select GENERIC_IRQ_CHIP
 434         select REGMAP_MMIO
 435
 436 config GPIO_MXC
 437         tristate "i.MX GPIO support"
 438         depends on ARCH_MXC || COMPILE_TEST
 439         select GPIO_GENERIC
 440         select GENERIC_IRQ_CHIP
 441
 442 config GPIO_MXS
 443         bool "Freescale MXS GPIO support" if COMPILE_TEST
 444         depends on ARCH_MXS || COMPILE_TEST
 445         default y if ARCH_MXS
 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 and RZ/G GPIO support"
 490         depends on ARCH_RENESAS || COMPILE_TEST
 491         select GPIOLIB_IRQCHIP
 492         help
 493           Say yes here to support GPIO on Renesas R-Car or RZ/G 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_REALTEK_OTTO
 505         tristate "Realtek Otto GPIO support"
 506         depends on MACH_REALTEK_RTL
 507         default MACH_REALTEK_RTL
 508         select GPIO_GENERIC
 509         select GPIOLIB_IRQCHIP
 510         help
 511           The GPIO controller on the Otto MIPS platform supports up to two
 512           banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
 513           are grouped in four 8-bit wide ports.
 514
 515           When built as a module, the module will be called realtek_otto_gpio.
 516
 517 config GPIO_REG
 518         bool
 519         help
 520           A 32-bit single register GPIO fixed in/out implementation.  This
 521           can be used to represent any register as a set of GPIO signals.
 522
 523 config GPIO_ROCKCHIP
 524         tristate "Rockchip GPIO support"
 525         depends on ARCH_ROCKCHIP || COMPILE_TEST
 526         select GENERIC_IRQ_CHIP
 527         select GPIOLIB_IRQCHIP
 528         default ARCH_ROCKCHIP
 529         help
 530           Say yes here to support GPIO on Rockchip SoCs.
 531
 532 config GPIO_SAMA5D2_PIOBU
 533         tristate "SAMA5D2 PIOBU GPIO support"
 534         depends on MFD_SYSCON
 535         depends on OF_GPIO
 536         select GPIO_SYSCON
 537         help
 538           Say yes here to use the PIOBU pins as GPIOs.
 539
 540           PIOBU pins on the SAMA5D2 can be used as GPIOs.
 541           The difference from regular GPIOs is that they
 542           maintain their value during backup/self-refresh.
 543
 544 config GPIO_SIFIVE
 545         bool "SiFive GPIO support"
 546         depends on OF_GPIO
 547         select IRQ_DOMAIN_HIERARCHY
 548         select GPIO_GENERIC
 549         select GPIOLIB_IRQCHIP
 550         select REGMAP_MMIO
 551         help
 552           Say yes here to support the GPIO device on SiFive SoCs.
 553
 554 config GPIO_SIOX
 555         tristate "SIOX GPIO support"
 556         depends on SIOX
 557         select GPIOLIB_IRQCHIP
 558         help
 559           Say yes here to support SIOX I/O devices. These are units connected
 560           via a SIOX bus and have a number of fixed-direction I/O lines.
 561
 562 config GPIO_SNPS_CREG
 563         bool "Synopsys GPIO via CREG (Control REGisters) driver"
 564         depends on ARC || COMPILE_TEST
 565         depends on OF_GPIO
 566         help
 567           This driver supports GPIOs via CREG on various Synopsys SoCs.
 568           This is a single-register MMIO GPIO driver for complex cases
 569           where only several fields in register belong to GPIO lines and
 570           each GPIO line owns a field with different length and on/off value.
 571
 572 config GPIO_SPEAR_SPICS
 573         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 574         depends on PLAT_SPEAR
 575         select GENERIC_IRQ_CHIP
 576         help
 577           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 578
 579 config GPIO_SPRD
 580         tristate "Spreadtrum GPIO support"
 581         depends on ARCH_SPRD || COMPILE_TEST
 582         depends on OF_GPIO
 583         select GPIOLIB_IRQCHIP
 584         help
 585           Say yes here to support Spreadtrum GPIO device.
 586
 587 config GPIO_STA2X11
 588         bool "STA2x11/ConneXt GPIO support"
 589         depends on MFD_STA2X11
 590         select GENERIC_IRQ_CHIP
 591         help
 592           Say yes here to support the STA2x11/ConneXt GPIO device.
 593           The GPIO module has 128 GPIO pins with alternate functions.
 594
 595 config GPIO_STP_XWAY
 596         bool "XWAY STP GPIOs"
 597         depends on SOC_XWAY || COMPILE_TEST
 598         depends on OF_GPIO
 599         help
 600           This enables support for the Serial To Parallel (STP) unit found on
 601           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 602           that can be up to 24 bit. This peripheral is aimed at driving leds.
 603           Some of the gpios/leds can be auto updated by the soc with dsl and
 604           phy status.
 605
 606 config GPIO_SYSCON
 607         tristate "GPIO based on SYSCON"
 608         depends on MFD_SYSCON && OF
 609         help
 610           Say yes here to support GPIO functionality though SYSCON driver.
 611
 612 config GPIO_TB10X
 613         bool
 614         select GPIO_GENERIC
 615         select GENERIC_IRQ_CHIP
 616         select OF_GPIO
 617
 618 config GPIO_TEGRA
 619         tristate "NVIDIA Tegra GPIO support"
 620         default ARCH_TEGRA
 621         depends on ARCH_TEGRA || COMPILE_TEST
 622         depends on OF_GPIO
 623         select GPIOLIB_IRQCHIP
 624         select IRQ_DOMAIN_HIERARCHY
 625         help
 626           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 627
 628 config GPIO_TEGRA186
 629         tristate "NVIDIA Tegra186 GPIO support"
 630         default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
 631         depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
 632         depends on OF_GPIO
 633         select GPIOLIB_IRQCHIP
 634         select IRQ_DOMAIN_HIERARCHY
 635         help
 636           Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 637
 638 config GPIO_TS4800
 639         tristate "TS-4800 DIO blocks and compatibles"
 640         depends on OF_GPIO
 641         depends on SOC_IMX51 || COMPILE_TEST
 642         select GPIO_GENERIC
 643         help
 644           This driver support TS-4800 FPGA GPIO controllers.
 645
 646 config GPIO_THUNDERX
 647         tristate "Cavium ThunderX/OCTEON-TX GPIO"
 648         depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 649         depends on PCI_MSI
 650         select GPIOLIB_IRQCHIP
 651         select IRQ_DOMAIN_HIERARCHY
 652         select IRQ_FASTEOI_HIERARCHY_HANDLERS
 653         help
 654           Say yes here to support the on-chip GPIO lines on the ThunderX
 655           and OCTEON-TX families of SoCs.
 656
 657 config GPIO_UNIPHIER
 658         tristate "UniPhier GPIO support"
 659         depends on ARCH_UNIPHIER || COMPILE_TEST
 660         depends on OF_GPIO
 661         select IRQ_DOMAIN_HIERARCHY
 662         help
 663           Say yes here to support UniPhier GPIOs.
 664
 665 config GPIO_VF610
 666         def_bool y
 667         depends on ARCH_MXC && SOC_VF610
 668         select GPIOLIB_IRQCHIP
 669         help
 670           Say yes here to support Vybrid vf610 GPIOs.
 671
 672 config GPIO_VISCONTI
 673         tristate "Toshiba Visconti GPIO support"
 674         depends on ARCH_VISCONTI || COMPILE_TEST
 675         depends on OF_GPIO
 676         select GPIOLIB_IRQCHIP
 677         select GPIO_GENERIC
 678         select IRQ_DOMAIN_HIERARCHY
 679         help
 680           Say yes here to support GPIO on Tohisba Visconti.
 681
 682 config GPIO_VR41XX
 683         tristate "NEC VR4100 series General-purpose I/O Uint support"
 684         depends on CPU_VR41XX
 685         help
 686           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 687
 688 config GPIO_VX855
 689         tristate "VIA VX855/VX875 GPIO"
 690         depends on (X86 || COMPILE_TEST) && PCI
 691         select MFD_CORE
 692         select MFD_VX855
 693         help
 694           Support access to the VX855/VX875 GPIO lines through the gpio library.
 695
 696           This driver provides common support for accessing the device,
 697           additional drivers must be enabled in order to use the
 698           functionality of the device.
 699
 700 config GPIO_WCD934X
 701         tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
 702         depends on MFD_WCD934X && OF_GPIO
 703         help
 704          This driver is to support GPIO block found on the Qualcomm Technologies
 705          Inc WCD9340/WCD9341 Audio Codec.
 706
 707 config GPIO_XGENE
 708         bool "APM X-Gene GPIO controller support"
 709         depends on ARM64 && OF_GPIO
 710         help
 711           This driver is to support the GPIO block within the APM X-Gene SoC
 712           platform's generic flash controller. The GPIO pins are muxed with
 713           the generic flash controller's address and data pins. Say yes
 714           here to enable the GFC GPIO functionality.
 715
 716 config GPIO_XGENE_SB
 717         tristate "APM X-Gene GPIO standby controller support"
 718         depends on (ARCH_XGENE || COMPILE_TEST)
 719         select GPIO_GENERIC
 720         select GPIOLIB_IRQCHIP
 721         select IRQ_DOMAIN_HIERARCHY
 722         help
 723           This driver supports the GPIO block within the APM X-Gene
 724           Standby Domain. Say yes here to enable the GPIO functionality.
 725
 726 config GPIO_XILINX
 727         tristate "Xilinx GPIO support"
 728         select GPIOLIB_IRQCHIP
 729         depends on OF_GPIO
 730         help
 731           Say yes here to support the Xilinx FPGA GPIO device
 732
 733 config GPIO_XLP
 734         tristate "Netlogic XLP GPIO support"
 735         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 736         select GPIOLIB_IRQCHIP
 737         help
 738           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 739           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 740           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 741           Cavium's ThunderX2 CN99XX SoCs.
 742
 743           If unsure, say N.
 744
 745 config GPIO_XTENSA
 746         bool "Xtensa GPIO32 support"
 747         depends on XTENSA
 748         depends on HAVE_XTENSA_GPIO32
 749         depends on !SMP
 750         help
 751           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 752           and EXPSTATE (output) ports
 753
 754 config GPIO_ZEVIO
 755         bool "LSI ZEVIO SoC memory mapped GPIOs"
 756         depends on ARM && OF_GPIO
 757         help
 758           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 759
 760 config GPIO_ZYNQ
 761         tristate "Xilinx Zynq GPIO support"
 762         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 763         select GPIOLIB_IRQCHIP
 764         help
 765           Say yes here to support Xilinx Zynq GPIO controller.
 766
 767 config GPIO_LOONGSON1
 768         tristate "Loongson1 GPIO support"
 769         depends on MACH_LOONGSON32
 770         select GPIO_GENERIC
 771         help
 772           Say Y or M here to support GPIO on Loongson1 SoCs.
 773
 774 config GPIO_AMD_FCH
 775         tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 776         help
 777           This option enables driver for GPIO on AMDs Fusion Controller Hub,
 778           as found on G-series SOCs (eg. GX-412TC)
 779
 780           Note: This driver doesn't registers itself automatically, as it
 781           needs to be provided with platform specific configuration.
 782           (See eg. CONFIG_PCENGINES_APU2.)
 783
 784 config GPIO_MSC313
 785         bool "MStar MSC313 GPIO support"
 786         depends on ARCH_MSTARV7
 787         default ARCH_MSTARV7
 788         select GPIOLIB_IRQCHIP
 789         select IRQ_DOMAIN_HIERARCHY
 790         help
 791           Say Y here to support the main GPIO block on MStar/SigmaStar
 792           ARMv7 based SoCs.
 793
 794 config GPIO_IDT3243X
 795         tristate "IDT 79RC3243X GPIO support"
 796         depends on MIKROTIK_RB532 || COMPILE_TEST
 797         select GPIO_GENERIC
 798         select GPIOLIB_IRQCHIP
 799         help
 800           Select this option to enable GPIO driver for
 801           IDT 79RC3243X based devices like Mikrotik RB532.
 802
 803           To compile this driver as a module, choose M here: the module will
 804           be called gpio-idt3243x.
 805
 806 endmenu
 807
 808 menu "Port-mapped I/O GPIO drivers"
 809         depends on X86 # Unconditional I/O space access
 810
 811 config GPIO_104_DIO_48E
 812         tristate "ACCES 104-DIO-48E GPIO support"
 813         depends on PC104
 814         select ISA_BUS_API
 815         select GPIOLIB_IRQCHIP
 816         help
 817           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 818           104-DIO-24E). The base port addresses for the devices may be
 819           configured via the base module parameter. The interrupt line numbers
 820           for the devices may be configured via the irq module parameter.
 821
 822 config GPIO_104_IDIO_16
 823         tristate "ACCES 104-IDIO-16 GPIO support"
 824         depends on PC104
 825         select ISA_BUS_API
 826         select GPIOLIB_IRQCHIP
 827         help
 828           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 829           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 830           base port addresses for the devices may be configured via the base
 831           module parameter. The interrupt line numbers for the devices may be
 832           configured via the irq module parameter.
 833
 834 config GPIO_104_IDI_48
 835         tristate "ACCES 104-IDI-48 GPIO support"
 836         depends on PC104
 837         select ISA_BUS_API
 838         select GPIOLIB_IRQCHIP
 839         help
 840           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 841           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 842           the devices may be configured via the base module parameter. The
 843           interrupt line numbers for the devices may be configured via the irq
 844           module parameter.
 845
 846 config GPIO_F7188X
 847         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 848         help
 849           This option enables support for GPIOs found on Fintek Super-I/O
 850           chips F71869, F71869A, F71882FG, F71889F and F81866.
 851
 852           To compile this driver as a module, choose M here: the module will
 853           be called f7188x-gpio.
 854
 855 config GPIO_GPIO_MM
 856         tristate "Diamond Systems GPIO-MM GPIO support"
 857         depends on PC104
 858         select ISA_BUS_API
 859         help
 860           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 861
 862           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 863           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 864           support for these 48 channels of digital I/O.
 865
 866           The base port addresses for the devices may be configured via the base
 867           array module parameter.
 868
 869 config GPIO_IT87
 870         tristate "IT87xx GPIO support"
 871         help
 872           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 873
 874           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 875           supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 876           well.
 877
 878           To compile this driver as a module, choose M here: the module will
 879           be called gpio_it87
 880
 881 config GPIO_SCH
 882         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 883         depends on (X86 || COMPILE_TEST) && ACPI
 884         depends on LPC_SCH
 885         select GPIOLIB_IRQCHIP
 886         help
 887           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 888           Intel Tunnel Creek processor, Intel Centerton processor or
 889           Intel Quark X1000 SoC.
 890
 891           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 892           powered by the core power rail and are turned off during sleep
 893           modes (S3 and higher). The remaining four GPIOs are powered by
 894           the Intel SCH suspend power supply. These GPIOs remain
 895           active during S3. The suspend powered GPIOs can be used to wake the
 896           system from the Suspend-to-RAM state.
 897
 898           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 899           core power rail and 9 from suspend power supply.
 900
 901           The Intel Centerton processor has a total of 30 GPIO pins.
 902           Twenty-one are powered by the core power rail and 9 from the
 903           suspend power supply.
 904
 905           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 906           power well and 6 from the suspend power well.
 907
 908 config GPIO_SCH311X
 909         tristate "SMSC SCH311x SuperI/O GPIO"
 910         help
 911           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 912           SCH3116 "Super I/O" chipsets.
 913
 914           To compile this driver as a module, choose M here: the module will
 915           be called gpio-sch311x.
 916
 917 config GPIO_TS5500
 918         tristate "TS-5500 DIO blocks and compatibles"
 919         depends on TS5500 || COMPILE_TEST
 920         help
 921           This driver supports Digital I/O exposed by pin blocks found on some
 922           Technologic Systems platforms. It includes, but is not limited to, 3
 923           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 924           LCD port.
 925
 926 config GPIO_WINBOND
 927         tristate "Winbond Super I/O GPIO support"
 928         select ISA_BUS_API
 929         help
 930           This option enables support for GPIOs found on Winbond Super I/O
 931           chips.
 932           Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 933           supported.
 934
 935           You will need to provide a module parameter "gpios", or a
 936           boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 937           ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 938
 939           To compile this driver as a module, choose M here: the module will
 940           be called gpio-winbond.
 941
 942 config GPIO_WS16C48
 943         tristate "WinSystems WS16C48 GPIO support"
 944         select ISA_BUS_API
 945         select GPIOLIB_IRQCHIP
 946         help
 947           Enables GPIO support for the WinSystems WS16C48. The base port
 948           addresses for the devices may be configured via the base module
 949           parameter. The interrupt line numbers for the devices may be
 950           configured via the irq module parameter.
 951
 952 endmenu
 953
 954 menu "I2C GPIO expanders"
 955         depends on I2C
 956
 957 config GPIO_ADP5588
 958         tristate "ADP5588 I2C GPIO expander"
 959         help
 960           This option enables support for 18 GPIOs found
 961           on Analog Devices ADP5588 GPIO Expanders.
 962
 963 config GPIO_ADP5588_IRQ
 964         bool "Interrupt controller support for ADP5588"
 965         depends on GPIO_ADP5588=y
 966         select GPIOLIB_IRQCHIP
 967         help
 968           Say yes here to enable the adp5588 to be used as an interrupt
 969           controller. It requires the driver to be built in the kernel.
 970
 971 config GPIO_ADNP
 972         tristate "Avionic Design N-bit GPIO expander"
 973         depends on OF_GPIO
 974         select GPIOLIB_IRQCHIP
 975         help
 976           This option enables support for N GPIOs found on Avionic Design
 977           I2C GPIO expanders. The register space will be extended by powers
 978           of two, so the controller will need to accommodate for that. For
 979           example: if a controller provides 48 pins, 6 registers will be
 980           enough to represent all pins, but the driver will assume a
 981           register layout for 64 pins (8 registers).
 982
 983 config GPIO_GW_PLD
 984         tristate "Gateworks PLD GPIO Expander"
 985         depends on OF_GPIO
 986         help
 987           Say yes here to provide access to the Gateworks I2C PLD GPIO
 988           Expander. This is used at least on the Cambria GW2358-4.
 989
 990 config GPIO_MAX7300
 991         tristate "Maxim MAX7300 GPIO expander"
 992         select GPIO_MAX730X
 993         help
 994           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 995
 996 config GPIO_MAX732X
 997         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 998         help
 999           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1000           Port Expanders. Each IO port on these chips has a fixed role of
1001           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1002           Input and Output (designed by 'P'). The combinations are listed
1003           below:
1004
1005           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1006                         max7322 (4I4O), max7323 (4P4O)
1007
1008           16 bits:      max7324 (8I8O), max7325 (8P8O),
1009                         max7326 (4I12O), max7327 (4P12O)
1010
1011           Board setup code must specify the model to use, and the start
1012           number for these GPIOs.
1013
1014 config GPIO_MAX732X_IRQ
1015         bool "Interrupt controller support for MAX732x"
1016         depends on GPIO_MAX732X=y
1017         select GPIOLIB_IRQCHIP
1018         help
1019           Say yes here to enable the max732x to be used as an interrupt
1020           controller. It requires the driver to be built in the kernel.
1021
1022 config GPIO_PCA953X
1023         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1024         select REGMAP_I2C
1025         help
1026           Say yes here to provide access to several register-oriented
1027           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1028           models include:
1029
1030           4 bits:       pca9536, pca9537
1031
1032           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1033                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1034
1035           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1036                         tca6416
1037
1038           24 bits:      tca6424
1039
1040           40 bits:      pca9505, pca9698
1041
1042 config GPIO_PCA953X_IRQ
1043         bool "Interrupt controller support for PCA953x"
1044         depends on GPIO_PCA953X
1045         select GPIOLIB_IRQCHIP
1046         help
1047           Say yes here to enable the pca953x to be used as an interrupt
1048           controller. It requires the driver to be built in the kernel.
1049
1050 config GPIO_PCA9570
1051         tristate "PCA9570 4-Bit I2C GPO expander"
1052         help
1053           Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1054
1055           To compile this driver as a module, choose M here: the module will
1056           be called gpio-pca9570.
1057
1058 config GPIO_PCF857X
1059         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1060         select GPIOLIB_IRQCHIP
1061         select IRQ_DOMAIN
1062         help
1063           Say yes here to provide access to most "quasi-bidirectional" I2C
1064           GPIO expanders used for additional digital outputs or inputs.
1065           Most of these parts are from NXP, though TI is a second source for
1066           some of them.  Compatible models include:
1067
1068           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1069                     pca9670, pca9672, pca9674, pca9674a,
1070                     max7328, max7329
1071
1072           16 bits:  pcf8575, pcf8575c, pca8575,
1073                     pca9671, pca9673, pca9675
1074
1075           Your board setup code will need to declare the expanders in
1076           use, and assign numbers to the GPIOs they expose.  Those GPIOs
1077           can then be used from drivers and other kernel code, just like
1078           other GPIOs, but only accessible from task contexts.
1079
1080           This driver provides an in-kernel interface to those GPIOs using
1081           platform-neutral GPIO calls.
1082
1083 config GPIO_TPIC2810
1084         tristate "TPIC2810 8-Bit I2C GPO expander"
1085         help
1086           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1087
1088           To compile this driver as a module, choose M here: the module will
1089           be called gpio-tpic2810.
1090
1091 config GPIO_TS4900
1092         tristate "Technologic Systems FPGA I2C GPIO"
1093         depends on SOC_IMX6 || COMPILE_TEST
1094         select REGMAP_I2C
1095         help
1096           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1097           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1098
1099 endmenu
1100
1101 menu "MFD GPIO expanders"
1102
1103 config GPIO_ADP5520
1104         tristate "GPIO Support for ADP5520 PMIC"
1105         depends on PMIC_ADP5520
1106         help
1107           This option enables support for on-chip GPIO found
1108           on Analog Devices ADP5520 PMICs.
1109
1110 config GPIO_ALTERA_A10SR
1111         tristate "Altera Arria10 System Resource GPIO"
1112         depends on MFD_ALTERA_A10SR
1113         help
1114           Driver for Arria10 Development Kit GPIO expansion which
1115           includes reads of pushbuttons and DIP switches as well
1116           as writes to LEDs.
1117
1118 config GPIO_ARIZONA
1119         tristate "Wolfson Microelectronics Arizona class devices"
1120         depends on MFD_ARIZONA
1121         help
1122           Support for GPIOs on Wolfson Arizona class devices.
1123
1124 config GPIO_BD70528
1125         tristate "ROHM BD70528 GPIO support"
1126         depends on MFD_ROHM_BD70528
1127         help
1128           Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1129           available on the ROHM PMIC in total. The GPIOs can also
1130           generate interrupts.
1131
1132           This driver can also be built as a module. If so, the module
1133           will be called gpio-bd70528.
1134
1135 config GPIO_BD71815
1136         tristate "ROHM BD71815 PMIC GPIO support"
1137         depends on MFD_ROHM_BD71828
1138         help
1139           Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1140           available on the ROHM PMIC.
1141
1142           This driver can also be built as a module. If so, the module
1143           will be called gpio-bd71815.
1144
1145 config GPIO_BD71828
1146         tristate "ROHM BD71828 GPIO support"
1147         depends on MFD_ROHM_BD71828
1148         help
1149           Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1150           available on the ROHM PMIC in total. The GPIOs are limited to
1151           outputs only and pins must be configured to GPIO outputs by
1152           OTP. Enable this only if you want to use these pins as outputs.
1153
1154           This driver can also be built as a module. If so, the module
1155           will be called gpio-bd71828.
1156
1157 config GPIO_BD9571MWV
1158         tristate "ROHM BD9571 GPIO support"
1159         depends on MFD_BD9571MWV
1160         help
1161           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1162           available on the ROHM PMIC in total, both of which can also
1163           generate interrupts.
1164
1165           This driver can also be built as a module. If so, the module
1166           will be called gpio-bd9571mwv.
1167
1168 config GPIO_CRYSTAL_COVE
1169         tristate "GPIO support for Crystal Cove PMIC"
1170         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1171         select GPIOLIB_IRQCHIP
1172         help
1173           Support for GPIO pins on Crystal Cove PMIC.
1174
1175           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1176           inside.
1177
1178           This driver can also be built as a module. If so, the module will be
1179           called gpio-crystalcove.
1180
1181 config GPIO_CS5535
1182         tristate "AMD CS5535/CS5536 GPIO support"
1183         depends on X86 || MIPS || COMPILE_TEST
1184         depends on MFD_CS5535
1185         help
1186           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1187           can be used for quite a number of things.  The CS5535/6 is found on
1188           AMD Geode and Lemote Yeeloong devices.
1189
1190           If unsure, say N.
1191
1192 config GPIO_DA9052
1193         tristate "Dialog DA9052 GPIO"
1194         depends on PMIC_DA9052
1195         help
1196           Say yes here to enable the GPIO driver for the DA9052 chip.
1197
1198 config GPIO_DA9055
1199         tristate "Dialog Semiconductor DA9055 GPIO"
1200         depends on MFD_DA9055
1201         help
1202           Say yes here to enable the GPIO driver for the DA9055 chip.
1203
1204           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1205           be controller by this driver.
1206
1207           If driver is built as a module it will be called gpio-da9055.
1208
1209 config GPIO_DLN2
1210         tristate "Diolan DLN2 GPIO support"
1211         depends on MFD_DLN2
1212         select GPIOLIB_IRQCHIP
1213
1214         help
1215           Select this option to enable GPIO driver for the Diolan DLN2
1216           board.
1217
1218           This driver can also be built as a module. If so, the module
1219           will be called gpio-dln2.
1220
1221 config HTC_EGPIO
1222         bool "HTC EGPIO support"
1223         depends on ARM
1224         help
1225           This driver supports the CPLD egpio chip present on
1226           several HTC phones.  It provides basic support for input
1227           pins, output pins, and irqs.
1228
1229 config GPIO_JANZ_TTL
1230         tristate "Janz VMOD-TTL Digital IO Module"
1231         depends on MFD_JANZ_CMODIO
1232         help
1233           This enables support for the Janz VMOD-TTL Digital IO module.
1234           This driver provides support for driving the pins in output
1235           mode only. Input mode is not supported.
1236
1237 config GPIO_KEMPLD
1238         tristate "Kontron ETX / COMexpress GPIO"
1239         depends on MFD_KEMPLD
1240         help
1241           This enables support for the PLD GPIO interface on some Kontron ETX
1242           and COMexpress (ETXexpress) modules.
1243
1244           This driver can also be built as a module. If so, the module will be
1245           called gpio-kempld.
1246
1247 config GPIO_LP3943
1248         tristate "TI/National Semiconductor LP3943 GPIO expander"
1249         depends on MFD_LP3943
1250         help
1251           GPIO driver for LP3943 MFD.
1252           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1253           Open drain outputs are required for this usage.
1254
1255 config GPIO_LP873X
1256         tristate "TI LP873X GPO"
1257         depends on MFD_TI_LP873X
1258         help
1259           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1260           on LP873X PMICs.
1261
1262           This driver can also be built as a module. If so, the module will be
1263           called gpio-lp873x.
1264
1265 config GPIO_LP87565
1266         tristate "TI LP87565 GPIO"
1267         depends on MFD_TI_LP87565
1268         help
1269           This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1270           on LP87565 PMICs.
1271
1272           This driver can also be built as a module. If so, the module will be
1273           called gpio-lp87565.
1274
1275 config GPIO_MADERA
1276         tristate "Cirrus Logic Madera class codecs"
1277         depends on PINCTRL_MADERA
1278         help
1279           Support for GPIOs on Cirrus Logic Madera class codecs.
1280
1281 config GPIO_MAX77620
1282         tristate "GPIO support for PMIC MAX77620 and MAX20024"
1283         depends on MFD_MAX77620
1284         select GPIOLIB_IRQCHIP
1285         help
1286           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1287           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1288           driver also provides interrupt support for each of the gpios.
1289           Say yes here to enable the max77620 to be used as gpio controller.
1290
1291 config GPIO_MAX77650
1292         tristate "Maxim MAX77650/77651 GPIO support"
1293         depends on MFD_MAX77650
1294         help
1295           GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1296           These chips have a single pin that can be configured as GPIO.
1297
1298 config GPIO_PALMAS
1299         bool "TI PALMAS series PMICs GPIO"
1300         depends on MFD_PALMAS
1301         help
1302           Select this option to enable GPIO driver for the TI PALMAS
1303           series chip family.
1304
1305 config GPIO_RC5T583
1306         bool "RICOH RC5T583 GPIO"
1307         depends on MFD_RC5T583
1308         help
1309           Select this option to enable GPIO driver for the Ricoh RC5T583
1310           chip family.
1311           This driver provides the support for driving/reading the gpio pins
1312           of RC5T583 device through standard gpio library.
1313
1314 config GPIO_SL28CPLD
1315         tristate "Kontron sl28cpld GPIO support"
1316         depends on MFD_SL28CPLD || COMPILE_TEST
1317         select GPIO_REGMAP
1318         select GPIOLIB_IRQCHIP
1319         select REGMAP_IRQ
1320         help
1321           This enables support for the GPIOs found on the Kontron sl28 CPLD.
1322
1323           This driver can also be built as a module. If so, the module will be
1324           called gpio-sl28cpld.
1325
1326 config GPIO_STMPE
1327         bool "STMPE GPIOs"
1328         depends on MFD_STMPE
1329         depends on OF_GPIO
1330         select GPIOLIB_IRQCHIP
1331         help
1332           This enables support for the GPIOs found on the STMPE I/O
1333           Expanders.
1334
1335 config GPIO_TC3589X
1336         bool "TC3589X GPIOs"
1337         depends on MFD_TC3589X
1338         depends on OF_GPIO
1339         select GPIOLIB_IRQCHIP
1340         help
1341           This enables support for the GPIOs found on the TC3589X
1342           I/O Expander.
1343
1344 config GPIO_TIMBERDALE
1345         bool "Support for timberdale GPIO IP"
1346         depends on MFD_TIMBERDALE
1347         help
1348         Add support for the GPIO IP in the timberdale FPGA.
1349
1350 config GPIO_TPS65086
1351         tristate "TI TPS65086 GPO"
1352         depends on MFD_TPS65086
1353         help
1354           This driver supports the GPO on TI TPS65086x PMICs.
1355
1356 config GPIO_TPS65218
1357         tristate "TPS65218 GPIO"
1358         depends on MFD_TPS65218
1359         help
1360           Select this option to enable GPIO driver for the TPS65218
1361           chip family.
1362
1363 config GPIO_TPS6586X
1364         bool "TPS6586X GPIO"
1365         depends on MFD_TPS6586X
1366         help
1367           Select this option to enable GPIO driver for the TPS6586X
1368           chip family.
1369
1370 config GPIO_TPS65910
1371         bool "TPS65910 GPIO"
1372         depends on MFD_TPS65910
1373         help
1374           Select this option to enable GPIO driver for the TPS65910
1375           chip family.
1376
1377 config GPIO_TPS65912
1378         tristate "TI TPS65912 GPIO"
1379         depends on MFD_TPS65912
1380         help
1381           This driver supports TPS65912 gpio chip
1382
1383 config GPIO_TPS68470
1384         bool "TPS68470 GPIO"
1385         depends on INTEL_SKL_INT3472
1386         help
1387           Select this option to enable GPIO driver for the TPS68470
1388           chip family.
1389           There are 7 GPIOs and few sensor related GPIOs supported
1390           by the TPS68470. While the 7 GPIOs can be configured as
1391           input or output as appropriate, the sensor related GPIOs
1392           are "output only" GPIOs.
1393
1394           This driver config is bool, as the GPIO functionality
1395           of the TPS68470 must be available before dependent
1396           drivers are loaded.
1397
1398 config GPIO_TQMX86
1399         tristate "TQ-Systems QTMX86 GPIO"
1400         depends on MFD_TQMX86 || COMPILE_TEST
1401         depends on HAS_IOPORT_MAP
1402         select GPIOLIB_IRQCHIP
1403         help
1404           This driver supports GPIO on the TQMX86 IO controller.
1405
1406 config GPIO_TWL4030
1407         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1408         depends on TWL4030_CORE
1409         help
1410           Say yes here to access the GPIO signals of various multi-function
1411           power management chips from Texas Instruments.
1412
1413 config GPIO_TWL6040
1414         tristate "TWL6040 GPO"
1415         depends on TWL6040_CORE
1416         help
1417           Say yes here to access the GPO signals of twl6040
1418           audio chip from Texas Instruments.
1419
1420 config GPIO_UCB1400
1421         tristate "Philips UCB1400 GPIO"
1422         depends on UCB1400_CORE
1423         help
1424           This enables support for the Philips UCB1400 GPIO pins.
1425           The UCB1400 is an AC97 audio codec.
1426
1427 config GPIO_WHISKEY_COVE
1428         tristate "GPIO support for Whiskey Cove PMIC"
1429         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1430         select GPIOLIB_IRQCHIP
1431         help
1432           Support for GPIO pins on Whiskey Cove PMIC.
1433
1434           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1435           inside.
1436
1437           This driver can also be built as a module. If so, the module will be
1438           called gpio-wcove.
1439
1440 config GPIO_WM831X
1441         tristate "WM831x GPIOs"
1442         depends on MFD_WM831X
1443         help
1444           Say yes here to access the GPIO signals of WM831x power management
1445           chips from Wolfson Microelectronics.
1446
1447 config GPIO_WM8350
1448         tristate "WM8350 GPIOs"
1449         depends on MFD_WM8350
1450         help
1451           Say yes here to access the GPIO signals of WM8350 power management
1452           chips from Wolfson Microelectronics.
1453
1454 config GPIO_WM8994
1455         tristate "WM8994 GPIOs"
1456         depends on MFD_WM8994
1457         help
1458           Say yes here to access the GPIO signals of WM8994 audio hub
1459           CODECs from Wolfson Microelectronics.
1460
1461 endmenu
1462
1463 menu "PCI GPIO expanders"
1464         depends on PCI
1465
1466 config GPIO_AAEON
1467         tristate "AAEON GPIO support"
1468         depends on ASUS_WMI
1469         depends on UBUNTU_ODM_DRIVERS
1470         select MFD_AAEON
1471         help
1472           Say yes here to support GPIO pins on Single Board Computers produced
1473           by AAEON.
1474
1475           This driver leverages the ASUS WMI interface to access device
1476           resources.
1477
1478 config GPIO_AMD8111
1479         tristate "AMD 8111 GPIO driver"
1480         depends on X86 || COMPILE_TEST
1481         depends on HAS_IOPORT_MAP
1482         help
1483           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1484
1485           Note, that usually system firmware/ACPI handles GPIO pins on their
1486           own and users might easily break their systems with uncarefull usage
1487           of this driver!
1488
1489           If unsure, say N
1490
1491 config GPIO_BT8XX
1492         tristate "BT8XX GPIO abuser"
1493         depends on VIDEO_BT848=n
1494         help
1495           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1496           as a cheap PCI GPIO card.
1497
1498           This chip can be found on Miro, Hauppauge and STB TV-cards.
1499
1500           The card needs to be physically altered for using it as a
1501           GPIO card. For more information on how to build a GPIO card
1502           from a BT8xx TV card, see the documentation file at
1503           Documentation/driver-api/gpio/bt8xxgpio.rst
1504
1505           If unsure, say N.
1506
1507 config GPIO_MERRIFIELD
1508         tristate "Intel Merrifield GPIO support"
1509         depends on X86_INTEL_MID
1510         select GPIOLIB_IRQCHIP
1511         help
1512           Say Y here to support Intel Merrifield GPIO.
1513
1514 config GPIO_MLXBF
1515         tristate "Mellanox BlueField SoC GPIO"
1516         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1517         select GPIO_GENERIC
1518         help
1519           Say Y here if you want GPIO support on Mellanox BlueField SoC.
1520
1521 config GPIO_MLXBF2
1522         tristate "Mellanox BlueField 2 SoC GPIO"
1523         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1524         select GPIO_GENERIC
1525         help
1526           Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1527
1528 config GPIO_ML_IOH
1529         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1530         depends on X86 || COMPILE_TEST
1531         select GENERIC_IRQ_CHIP
1532         help
1533           ML7213 is companion chip for Intel Atom E6xx series.
1534           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1535           Hub) which is for IVI(In-Vehicle Infotainment) use.
1536           This driver can access the IOH's GPIO device.
1537
1538 config GPIO_PCH
1539         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1540         depends on X86_32 || MIPS || COMPILE_TEST
1541         select GENERIC_IRQ_CHIP
1542         help
1543           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1544           which is an IOH(Input/Output Hub) for x86 embedded processor.
1545           This driver can access PCH GPIO device.
1546
1547           This driver also can be used for LAPIS Semiconductor IOH(Input/
1548           Output Hub), ML7223 and ML7831.
1549           ML7223 IOH is for MP(Media Phone) use.
1550           ML7831 IOH is for general purpose use.
1551           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1552           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1553
1554 config GPIO_PCI_IDIO_16
1555         tristate "ACCES PCI-IDIO-16 GPIO support"
1556         select GPIOLIB_IRQCHIP
1557         help
1558           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1559           generated when any of the inputs change state (low to high or high to
1560           low). Input filter control is not supported by this driver, and the
1561           input filters are deactivated by this driver.
1562
1563 config GPIO_PCIE_IDIO_24
1564         tristate "ACCES PCIe-IDIO-24 GPIO support"
1565         select GPIOLIB_IRQCHIP
1566         help
1567           Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1568           PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1569           when any of the inputs change state (low to high or high to low).
1570           Input filter control is not supported by this driver, and the input
1571           filters are deactivated by this driver.
1572
1573 config GPIO_RDC321X
1574         tristate "RDC R-321x GPIO support"
1575         select MFD_CORE
1576         select MFD_RDC321X
1577         help
1578           Support for the RDC R321x SoC GPIOs over southbridge
1579           PCI configuration space.
1580
1581 config GPIO_SODAVILLE
1582         bool "Intel Sodaville GPIO support"
1583         depends on X86 && OF
1584         select GPIO_GENERIC
1585         select GENERIC_IRQ_CHIP
1586         help
1587           Say Y here to support Intel Sodaville GPIO.
1588
1589 endmenu
1590
1591 menu "SPI GPIO expanders"
1592         depends on SPI_MASTER
1593
1594 config GPIO_74X164
1595         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1596         depends on OF_GPIO
1597         help
1598           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1599           shift registers. This driver can be used to provide access
1600           to more gpio outputs.
1601
1602 config GPIO_MAX3191X
1603         tristate "Maxim MAX3191x industrial serializer"
1604         select CRC8
1605         help
1606           GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1607           MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1608           chip to make 8 digital 24V inputs available via SPI.  Supports
1609           CRC checksums to guard against electromagnetic interference,
1610           as well as undervoltage and overtemperature detection.
1611
1612 config GPIO_MAX7301
1613         tristate "Maxim MAX7301 GPIO expander"
1614         select GPIO_MAX730X
1615         help
1616           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1617
1618 config GPIO_MC33880
1619         tristate "Freescale MC33880 high-side/low-side switch"
1620         help
1621           SPI driver for Freescale MC33880 high-side/low-side switch.
1622           This provides GPIO interface supporting inputs and outputs.
1623
1624 config GPIO_PISOSR
1625         tristate "Generic parallel-in/serial-out shift register"
1626         help
1627           GPIO driver for SPI compatible parallel-in/serial-out shift
1628           registers. These are input only devices.
1629
1630 config GPIO_XRA1403
1631         tristate "EXAR XRA1403 16-bit GPIO expander"
1632         select REGMAP_SPI
1633         help
1634           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1635
1636 config GPIO_MOXTET
1637         tristate "Turris Mox Moxtet bus GPIO expander"
1638         depends on MOXTET
1639         help
1640           Say yes here if you are building for the Turris Mox router.
1641           This is the driver needed for configuring the GPIOs via the Moxtet
1642           bus. For example the Mox module with SFP cage needs this driver
1643           so that phylink can use corresponding GPIOs.
1644
1645 endmenu
1646
1647 menu "USB GPIO expanders"
1648         depends on USB
1649
1650 config GPIO_VIPERBOARD
1651         tristate "Viperboard GPIO a & b support"
1652         depends on MFD_VIPERBOARD
1653         help
1654           Say yes here to access the GPIO signals of Nano River
1655           Technologies Viperboard. There are two GPIO chips on the
1656           board: gpioa and gpiob.
1657           See viperboard API specification and Nano
1658           River Tech's viperboard.h for detailed meaning
1659           of the module parameters.
1660
1661 endmenu
1662
1663 menu "Virtual GPIO drivers"
1664
1665 config GPIO_AGGREGATOR
1666         tristate "GPIO Aggregator"
1667         help
1668           Say yes here to enable the GPIO Aggregator, which provides a way to
1669           aggregate existing GPIO lines into a new virtual GPIO chip.
1670           This can serve the following purposes:
1671             - Assign permissions for a collection of GPIO lines to a user,
1672             - Export a collection of GPIO lines to a virtual machine,
1673             - Provide a generic driver for a GPIO-operated device in an
1674               industrial control context, to be operated from userspace using
1675               the GPIO chardev interface.
1676
1677 config GPIO_MOCKUP
1678         tristate "GPIO Testing Driver"
1679         select IRQ_SIM
1680         help
1681           This enables GPIO Testing driver, which provides a way to test GPIO
1682           subsystem through sysfs (or char device) and debugfs.
1683           User could use it through the script in
1684           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1685           it.
1686
1687 config GPIO_VIRTIO
1688         tristate "VirtIO GPIO support"
1689         depends on VIRTIO
1690         help
1691           Say Y here to enable guest support for virtio-based GPIO controllers.
1692
1693           These virtual GPIOs can be routed to real GPIOs or attached to
1694           simulators on the host (like QEMU).
1695
1696 endmenu
1697
1698 endif