drivers/gpio/Kconfig

   1 #
   2 # GPIO infrastructure and drivers
   3 #
   4
   5 config ARCH_HAVE_CUSTOM_GPIO_H
   6         bool
   7         help
   8           Selecting this config option from the architecture Kconfig allows
   9           the architecture to provide a custom asm/gpio.h implementation
  10           overriding the default implementations.  New uses of this are
  11           strongly discouraged.
  12
  13 menuconfig GPIOLIB
  14         bool "GPIO Support"
  15         select ANON_INODES
  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 OF_GPIO
  26         def_bool y
  27         depends on OF
  28         depends on HAS_IOMEM
  29
  30 config GPIO_ACPI
  31         def_bool y
  32         depends on ACPI
  33
  34 config GPIOLIB_IRQCHIP
  35         select IRQ_DOMAIN
  36         bool
  37
  38 config DEBUG_GPIO
  39         bool "Debug GPIO calls"
  40         depends on DEBUG_KERNEL
  41         help
  42           Say Y here to add some extra checks and diagnostics to GPIO calls.
  43           These checks help ensure that GPIOs have been properly initialized
  44           before they are used, and that sleeping calls are not made from
  45           non-sleeping contexts.  They can make bitbanged serial protocols
  46           slower.  The diagnostics help catch the type of setup errors
  47           that are most common when setting up new platforms or boards.
  48
  49 config GPIO_SYSFS
  50         bool "/sys/class/gpio/... (sysfs interface)"
  51         depends on SYSFS
  52         help
  53           Say Y here to add a sysfs interface for GPIOs.
  54
  55           This is mostly useful to work around omissions in a system's
  56           kernel support.  Those are common in custom and semicustom
  57           hardware assembled using standard kernels with a minimum of
  58           custom patches.  In those cases, userspace code may import
  59           a given GPIO from the kernel, if no kernel driver requested it.
  60
  61           Kernel drivers may also request that a particular GPIO be
  62           exported to userspace; this can be useful when debugging.
  63
  64 config GPIO_GENERIC
  65         depends on HAS_IOMEM # Only for IOMEM drivers
  66         tristate
  67
  68 # put drivers in the right section, in alphabetical order
  69
  70 # This symbol is selected by both I2C and SPI expanders
  71 config GPIO_MAX730X
  72         tristate
  73
  74 menu "Memory mapped GPIO drivers"
  75         depends on HAS_IOMEM
  76
  77 config GPIO_74XX_MMIO
  78         tristate "GPIO driver for 74xx-ICs with MMIO access"
  79         depends on OF_GPIO
  80         select GPIO_GENERIC
  81         help
  82           Say yes here to support GPIO functionality for 74xx-compatible ICs
  83           with MMIO access. Compatible models include:
  84             1 bit:      741G125 (Input), 741G74 (Output)
  85             2 bits:     742G125 (Input), 7474 (Output)
  86             4 bits:     74125 (Input), 74175 (Output)
  87             6 bits:     74365 (Input), 74174 (Output)
  88             8 bits:     74244 (Input), 74273 (Output)
  89             16 bits:    741624 (Input), 7416374 (Output)
  90
  91 config GPIO_ALTERA
  92         tristate "Altera GPIO"
  93         depends on OF_GPIO
  94         select GPIOLIB_IRQCHIP
  95         help
  96           Say Y or M here to build support for the Altera PIO device.
  97
  98           If driver is built as a module it will be called gpio-altera.
  99
 100 config GPIO_AMDPT
 101         tristate "AMD Promontory GPIO support"
 102         depends on ACPI
 103         select GPIO_GENERIC
 104         help
 105           driver for GPIO functionality on Promontory IOHub
 106           Require ACPI ASL code to enumerate as a platform device.
 107
 108 config GPIO_ASPEED
 109         tristate "Aspeed GPIO support"
 110         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 111         select GPIOLIB_IRQCHIP
 112         help
 113           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 114
 115 config GPIO_ATH79
 116         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 117         default y if ATH79
 118         depends on ATH79 || COMPILE_TEST
 119         select GPIO_GENERIC
 120         select GPIOLIB_IRQCHIP
 121         help
 122           Select this option to enable GPIO driver for
 123           Atheros AR71XX/AR724X/AR913X SoC devices.
 124
 125 config GPIO_AXP209
 126         tristate "X-Powers AXP209 PMIC GPIO Support"
 127         depends on MFD_AXP20X
 128         help
 129           Say yes to enable GPIO support for the AXP209 PMIC
 130
 131 config GPIO_BCM_KONA
 132         bool "Broadcom Kona GPIO"
 133         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 134         help
 135           Turn on GPIO support for Broadcom "Kona" chips.
 136
 137 config GPIO_BRCMSTB
 138         tristate "BRCMSTB GPIO support"
 139         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 140         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 141         select GPIO_GENERIC
 142         select GPIOLIB_IRQCHIP
 143         help
 144           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 145
 146 config GPIO_CLPS711X
 147         tristate "CLPS711X GPIO support"
 148         depends on ARCH_CLPS711X || COMPILE_TEST
 149         select GPIO_GENERIC
 150         help
 151           Say yes here to support GPIO on CLPS711X SoCs.
 152
 153 config GPIO_DAVINCI
 154         bool "TI Davinci/Keystone GPIO support"
 155         default y if ARCH_DAVINCI
 156         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 157         help
 158           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 159
 160 config GPIO_DWAPB
 161         tristate "Synopsys DesignWare APB GPIO driver"
 162         select GPIO_GENERIC
 163         select GENERIC_IRQ_CHIP
 164         help
 165           Say Y or M here to build support for the Synopsys DesignWare APB
 166           GPIO block.
 167
 168 config GPIO_EM
 169         tristate "Emma Mobile GPIO"
 170         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 171         help
 172           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 173
 174 config GPIO_EP93XX
 175         def_bool y
 176         depends on ARCH_EP93XX
 177         select GPIO_GENERIC
 178
 179 config GPIO_ETRAXFS
 180         bool "Axis ETRAX FS General I/O"
 181         depends on CRIS || COMPILE_TEST
 182         depends on OF_GPIO
 183         select GPIO_GENERIC
 184         select GPIOLIB_IRQCHIP
 185         help
 186           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 187
 188 config GPIO_EXAR
 189         tristate "Support for GPIO pins on XR17V352/354/358"
 190         depends on SERIAL_8250_EXAR
 191         help
 192           Selecting this option will enable handling of GPIO pins present
 193           on Exar XR17V352/354/358 chips.
 194
 195 config GPIO_GE_FPGA
 196         bool "GE FPGA based GPIO"
 197         depends on GE_FPGA
 198         select GPIO_GENERIC
 199         help
 200           Support for common GPIO functionality provided on some GE Single Board
 201           Computers.
 202
 203           This driver provides basic support (configure as input or output, read
 204           and write pin state) for GPIO implemented in a number of GE single
 205           board computers.
 206
 207 config GPIO_GEMINI
 208         bool "Gemini GPIO"
 209         depends on ARCH_GEMINI
 210         depends on OF_GPIO
 211         select GPIO_GENERIC
 212         select GPIOLIB_IRQCHIP
 213         help
 214           Support for common GPIOs found in Cortina systems Gemini platforms.
 215
 216 config GPIO_GENERIC_PLATFORM
 217         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 218         select GPIO_GENERIC
 219         help
 220           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 221
 222 config GPIO_GRGPIO
 223         tristate "Aeroflex Gaisler GRGPIO support"
 224         depends on OF_GPIO
 225         select GPIO_GENERIC
 226         select IRQ_DOMAIN
 227         help
 228           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 229           VHDL IP core library.
 230
 231 config GPIO_ICH
 232         tristate "Intel ICH GPIO"
 233         depends on PCI && X86
 234         select MFD_CORE
 235         select LPC_ICH
 236         help
 237           Say yes here to support the GPIO functionality of a number of Intel
 238           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 239           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 240           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 241
 242           If unsure, say N.
 243
 244 config GPIO_IOP
 245         tristate "Intel IOP GPIO"
 246         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
 247         select GPIO_GENERIC
 248         help
 249           Say yes here to support the GPIO functionality of a number of Intel
 250           IOP32X or IOP33X.
 251
 252           If unsure, say N.
 253
 254 config GPIO_LOONGSON
 255         bool "Loongson-2/3 GPIO support"
 256         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 257         help
 258           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 259
 260 config GPIO_LPC18XX
 261         tristate "NXP LPC18XX/43XX GPIO support"
 262         default y if ARCH_LPC18XX
 263         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 264         help
 265           Select this option to enable GPIO driver for
 266           NXP LPC18XX/43XX devices.
 267
 268 config GPIO_LYNXPOINT
 269         tristate "Intel Lynxpoint GPIO support"
 270         depends on ACPI && X86
 271         select GPIOLIB_IRQCHIP
 272         help
 273           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 274           Requires ACPI device enumeration code to set up a platform device.
 275
 276 config GPIO_MB86S7X
 277         bool "GPIO support for Fujitsu MB86S7x Platforms"
 278         depends on ARCH_MB86S7X || COMPILE_TEST
 279         help
 280           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 281
 282 config GPIO_MENZ127
 283         tristate "MEN 16Z127 GPIO support"
 284         depends on MCB
 285         select GPIO_GENERIC
 286         help
 287          Say yes here to support the MEN 16Z127 GPIO Controller
 288
 289 config GPIO_MM_LANTIQ
 290         bool "Lantiq Memory mapped GPIOs"
 291         depends on LANTIQ && SOC_XWAY
 292         help
 293           This enables support for memory mapped GPIOs on the External Bus Unit
 294           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 295           created by attaching a 16bit latch to the bus.
 296
 297 config GPIO_MOCKUP
 298         tristate "GPIO Testing Driver"
 299         depends on GPIOLIB && SYSFS
 300         select GPIO_SYSFS
 301         select GPIOLIB_IRQCHIP
 302         select IRQ_WORK
 303         help
 304           This enables GPIO Testing driver, which provides a way to test GPIO
 305           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
 306           must be selected for this test.
 307           User could use it through the script in
 308           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
 309           it.
 310
 311 config GPIO_MOXART
 312         bool "MOXART GPIO support"
 313         depends on ARCH_MOXART || COMPILE_TEST
 314         select GPIO_GENERIC
 315         help
 316           Select this option to enable GPIO driver for
 317           MOXA ART SoC devices.
 318
 319 config GPIO_MPC5200
 320         def_bool y
 321         depends on PPC_MPC52xx
 322
 323 config GPIO_MPC8XXX
 324         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 325         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 326                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 327                    COMPILE_TEST
 328         select GPIO_GENERIC
 329         select IRQ_DOMAIN
 330         help
 331           Say Y here if you're going to use hardware that connects to the
 332           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 333
 334 config GPIO_MVEBU
 335         def_bool y
 336         depends on PLAT_ORION
 337         depends on OF_GPIO
 338         select GENERIC_IRQ_CHIP
 339
 340 config GPIO_MXC
 341         def_bool y
 342         depends on ARCH_MXC
 343         select GPIO_GENERIC
 344         select GENERIC_IRQ_CHIP
 345
 346 config GPIO_MXS
 347         def_bool y
 348         depends on ARCH_MXS
 349         select GPIO_GENERIC
 350         select GENERIC_IRQ_CHIP
 351
 352 config GPIO_OCTEON
 353         tristate "Cavium OCTEON GPIO"
 354         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 355         default y
 356         help
 357           Say yes here to support the on-chip GPIO lines on the OCTEON
 358           family of SOCs.
 359
 360 config GPIO_OMAP
 361         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 362         default y if ARCH_OMAP
 363         depends on ARM
 364         select GENERIC_IRQ_CHIP
 365         select GPIOLIB_IRQCHIP
 366         help
 367           Say yes here to enable GPIO support for TI OMAP SoCs.
 368
 369 config GPIO_PL061
 370         bool "PrimeCell PL061 GPIO support"
 371         depends on ARM_AMBA
 372         select IRQ_DOMAIN
 373         select GPIOLIB_IRQCHIP
 374         help
 375           Say yes here to support the PrimeCell PL061 GPIO device
 376
 377 config GPIO_PXA
 378         bool "PXA GPIO support"
 379         depends on ARCH_PXA || ARCH_MMP
 380         help
 381           Say yes here to support the PXA GPIO device
 382
 383 config GPIO_RCAR
 384         tristate "Renesas R-Car GPIO"
 385         depends on ARCH_RENESAS || COMPILE_TEST
 386         select GPIOLIB_IRQCHIP
 387         help
 388           Say yes here to support GPIO on Renesas R-Car SoCs.
 389
 390 config GPIO_SPEAR_SPICS
 391         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 392         depends on PLAT_SPEAR
 393         select GENERIC_IRQ_CHIP
 394         help
 395           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 396
 397 config GPIO_STA2X11
 398         bool "STA2x11/ConneXt GPIO support"
 399         depends on MFD_STA2X11
 400         select GENERIC_IRQ_CHIP
 401         help
 402           Say yes here to support the STA2x11/ConneXt GPIO device.
 403           The GPIO module has 128 GPIO pins with alternate functions.
 404
 405 config GPIO_STP_XWAY
 406         bool "XWAY STP GPIOs"
 407         depends on SOC_XWAY
 408         help
 409           This enables support for the Serial To Parallel (STP) unit found on
 410           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 411           that can be up to 24 bit. This peripheral is aimed at driving leds.
 412           Some of the gpios/leds can be auto updated by the soc with dsl and
 413           phy status.
 414
 415 config GPIO_SYSCON
 416         tristate "GPIO based on SYSCON"
 417         depends on MFD_SYSCON && OF
 418         help
 419           Say yes here to support GPIO functionality though SYSCON driver.
 420
 421 config GPIO_TB10X
 422         bool
 423         select GENERIC_IRQ_CHIP
 424         select OF_GPIO
 425
 426 config GPIO_TEGRA
 427         bool "NVIDIA Tegra GPIO support"
 428         default ARCH_TEGRA
 429         depends on ARCH_TEGRA || COMPILE_TEST
 430         depends on OF_GPIO
 431         help
 432           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 433
 434 config GPIO_TS4800
 435         tristate "TS-4800 DIO blocks and compatibles"
 436         depends on OF_GPIO
 437         depends on SOC_IMX51 || COMPILE_TEST
 438         select GPIO_GENERIC
 439         help
 440           This driver support TS-4800 FPGA GPIO controllers.
 441
 442 config GPIO_TZ1090
 443         bool "Toumaz Xenif TZ1090 GPIO support"
 444         depends on SOC_TZ1090
 445         select GENERIC_IRQ_CHIP
 446         default y
 447         help
 448           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 449
 450 config GPIO_TZ1090_PDC
 451         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 452         depends on SOC_TZ1090
 453         default y
 454         help
 455           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 456
 457 config GPIO_VF610
 458         def_bool y
 459         depends on ARCH_MXC && SOC_VF610
 460         select GPIOLIB_IRQCHIP
 461         help
 462           Say yes here to support Vybrid vf610 GPIOs.
 463
 464 config GPIO_VR41XX
 465         tristate "NEC VR4100 series General-purpose I/O Uint support"
 466         depends on CPU_VR41XX
 467         help
 468           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 469
 470 config GPIO_VX855
 471         tristate "VIA VX855/VX875 GPIO"
 472         depends on (X86 || COMPILE_TEST) && PCI
 473         select MFD_CORE
 474         select MFD_VX855
 475         help
 476           Support access to the VX855/VX875 GPIO lines through the gpio library.
 477
 478           This driver provides common support for accessing the device,
 479           additional drivers must be enabled in order to use the
 480           functionality of the device.
 481
 482 config GPIO_XGENE
 483         bool "APM X-Gene GPIO controller support"
 484         depends on ARM64 && OF_GPIO
 485         help
 486           This driver is to support the GPIO block within the APM X-Gene SoC
 487           platform's generic flash controller. The GPIO pins are muxed with
 488           the generic flash controller's address and data pins. Say yes
 489           here to enable the GFC GPIO functionality.
 490
 491 config GPIO_XGENE_SB
 492         tristate "APM X-Gene GPIO standby controller support"
 493         depends on ARCH_XGENE && OF_GPIO
 494         select GPIO_GENERIC
 495         select GPIOLIB_IRQCHIP
 496         help
 497           This driver supports the GPIO block within the APM X-Gene
 498           Standby Domain. Say yes here to enable the GPIO functionality.
 499
 500 config GPIO_XILINX
 501         tristate "Xilinx GPIO support"
 502         depends on OF_GPIO
 503         help
 504           Say yes here to support the Xilinx FPGA GPIO device
 505
 506 config GPIO_XLP
 507         tristate "Netlogic XLP GPIO support"
 508         depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
 509         select GPIOLIB_IRQCHIP
 510         help
 511           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 512           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 513           XLP9XX and XLP5XX.
 514
 515           If unsure, say N.
 516
 517 config GPIO_XTENSA
 518         bool "Xtensa GPIO32 support"
 519         depends on XTENSA
 520         depends on HAVE_XTENSA_GPIO32
 521         depends on !SMP
 522         help
 523           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 524           and EXPSTATE (output) ports
 525
 526 config GPIO_ZEVIO
 527         bool "LSI ZEVIO SoC memory mapped GPIOs"
 528         depends on ARM && OF_GPIO
 529         help
 530           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 531
 532 config GPIO_ZYNQ
 533         tristate "Xilinx Zynq GPIO support"
 534         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 535         select GPIOLIB_IRQCHIP
 536         help
 537           Say yes here to support Xilinx Zynq GPIO controller.
 538
 539 config GPIO_ZX
 540         bool "ZTE ZX GPIO support"
 541         depends on ARCH_ZX || COMPILE_TEST
 542         select GPIOLIB_IRQCHIP
 543         help
 544           Say yes here to support the GPIO device on ZTE ZX SoCs.
 545
 546 config GPIO_LOONGSON1
 547         tristate "Loongson1 GPIO support"
 548         depends on MACH_LOONGSON32
 549         select GPIO_GENERIC
 550         help
 551           Say Y or M here to support GPIO on Loongson1 SoCs.
 552
 553 endmenu
 554
 555 menu "Port-mapped I/O GPIO drivers"
 556         depends on X86 # Unconditional I/O space access
 557
 558 config GPIO_104_DIO_48E
 559         tristate "ACCES 104-DIO-48E GPIO support"
 560         depends on ISA_BUS_API
 561         select GPIOLIB_IRQCHIP
 562         help
 563           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 564           104-DIO-24E). The base port addresses for the devices may be
 565           configured via the base module parameter. The interrupt line numbers
 566           for the devices may be configured via the irq module parameter.
 567
 568 config GPIO_104_IDIO_16
 569         tristate "ACCES 104-IDIO-16 GPIO support"
 570         depends on ISA_BUS_API
 571         select GPIOLIB_IRQCHIP
 572         help
 573           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 574           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 575           base port addresses for the devices may be configured via the base
 576           module parameter. The interrupt line numbers for the devices may be
 577           configured via the irq module parameter.
 578
 579 config GPIO_104_IDI_48
 580         tristate "ACCES 104-IDI-48 GPIO support"
 581         depends on ISA_BUS_API
 582         select GPIOLIB_IRQCHIP
 583         help
 584           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 585           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 586           the devices may be configured via the base module parameter. The
 587           interrupt line numbers for the devices may be configured via the irq
 588           module parameter.
 589
 590 config GPIO_F7188X
 591         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 592         help
 593           This option enables support for GPIOs found on Fintek Super-I/O
 594           chips F71869, F71869A, F71882FG, F71889F and F81866.
 595
 596           To compile this driver as a module, choose M here: the module will
 597           be called f7188x-gpio.
 598
 599 config GPIO_GPIO_MM
 600         tristate "Diamond Systems GPIO-MM GPIO support"
 601         depends on ISA_BUS_API
 602         help
 603           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 604
 605           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 606           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 607           support for these 48 channels of digital I/O.
 608
 609           The base port addresses for the devices may be configured via the base
 610           array module parameter.
 611
 612 config GPIO_IT87
 613         tristate "IT87xx GPIO support"
 614         help
 615           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 616
 617           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 618           supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
 619
 620           To compile this driver as a module, choose M here: the module will
 621           be called gpio_it87
 622
 623 config GPIO_SCH
 624         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 625         depends on (X86 || COMPILE_TEST) && PCI
 626         select MFD_CORE
 627         select LPC_SCH
 628         help
 629           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 630           Intel Tunnel Creek processor, Intel Centerton processor or
 631           Intel Quark X1000 SoC.
 632
 633           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 634           powered by the core power rail and are turned off during sleep
 635           modes (S3 and higher). The remaining four GPIOs are powered by
 636           the Intel SCH suspend power supply. These GPIOs remain
 637           active during S3. The suspend powered GPIOs can be used to wake the
 638           system from the Suspend-to-RAM state.
 639
 640           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 641           core power rail and 9 from suspend power supply.
 642
 643           The Intel Centerton processor has a total of 30 GPIO pins.
 644           Twenty-one are powered by the core power rail and 9 from the
 645           suspend power supply.
 646
 647           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 648           power well and 6 from the suspend power well.
 649
 650 config GPIO_SCH311X
 651         tristate "SMSC SCH311x SuperI/O GPIO"
 652         help
 653           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 654           SCH3116 "Super I/O" chipsets.
 655
 656           To compile this driver as a module, choose M here: the module will
 657           be called gpio-sch311x.
 658
 659 config GPIO_TS5500
 660         tristate "TS-5500 DIO blocks and compatibles"
 661         depends on TS5500 || COMPILE_TEST
 662         help
 663           This driver supports Digital I/O exposed by pin blocks found on some
 664           Technologic Systems platforms. It includes, but is not limited to, 3
 665           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 666           LCD port.
 667
 668 config GPIO_WS16C48
 669         tristate "WinSystems WS16C48 GPIO support"
 670         depends on ISA_BUS_API
 671         select GPIOLIB_IRQCHIP
 672         help
 673           Enables GPIO support for the WinSystems WS16C48. The base port
 674           addresses for the devices may be configured via the base module
 675           parameter. The interrupt line numbers for the devices may be
 676           configured via the irq module parameter.
 677
 678 endmenu
 679
 680 menu "I2C GPIO expanders"
 681         depends on I2C
 682
 683 config GPIO_ADP5588
 684         tristate "ADP5588 I2C GPIO expander"
 685         help
 686           This option enables support for 18 GPIOs found
 687           on Analog Devices ADP5588 GPIO Expanders.
 688
 689 config GPIO_ADP5588_IRQ
 690         bool "Interrupt controller support for ADP5588"
 691         depends on GPIO_ADP5588=y
 692         help
 693           Say yes here to enable the adp5588 to be used as an interrupt
 694           controller. It requires the driver to be built in the kernel.
 695
 696 config GPIO_ADNP
 697         tristate "Avionic Design N-bit GPIO expander"
 698         depends on OF_GPIO
 699         select GPIOLIB_IRQCHIP
 700         help
 701           This option enables support for N GPIOs found on Avionic Design
 702           I2C GPIO expanders. The register space will be extended by powers
 703           of two, so the controller will need to accommodate for that. For
 704           example: if a controller provides 48 pins, 6 registers will be
 705           enough to represent all pins, but the driver will assume a
 706           register layout for 64 pins (8 registers).
 707
 708 config GPIO_MAX7300
 709         tristate "Maxim MAX7300 GPIO expander"
 710         select GPIO_MAX730X
 711         help
 712           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 713
 714 config GPIO_MAX732X
 715         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 716         help
 717           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 718           Port Expanders. Each IO port on these chips has a fixed role of
 719           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 720           Input and Output (designed by 'P'). The combinations are listed
 721           below:
 722
 723           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 724                         max7322 (4I4O), max7323 (4P4O)
 725
 726           16 bits:      max7324 (8I8O), max7325 (8P8O),
 727                         max7326 (4I12O), max7327 (4P12O)
 728
 729           Board setup code must specify the model to use, and the start
 730           number for these GPIOs.
 731
 732 config GPIO_MAX732X_IRQ
 733         bool "Interrupt controller support for MAX732x"
 734         depends on GPIO_MAX732X=y
 735         select GPIOLIB_IRQCHIP
 736         help
 737           Say yes here to enable the max732x to be used as an interrupt
 738           controller. It requires the driver to be built in the kernel.
 739
 740 config GPIO_MC9S08DZ60
 741         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 742         depends on I2C=y && MACH_MX35_3DS
 743         help
 744           Select this to enable the MC9S08DZ60 GPIO driver
 745
 746 config GPIO_PCA953X
 747         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 748         help
 749           Say yes here to provide access to several register-oriented
 750           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 751           models include:
 752
 753           4 bits:       pca9536, pca9537
 754
 755           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 756                         pca9556, pca9557, pca9574, tca6408, xra1202
 757
 758           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 759                         tca6416
 760
 761           24 bits:      tca6424
 762
 763           40 bits:      pca9505, pca9698
 764
 765 config GPIO_PCA953X_IRQ
 766         bool "Interrupt controller support for PCA953x"
 767         depends on GPIO_PCA953X=y
 768         select GPIOLIB_IRQCHIP
 769         help
 770           Say yes here to enable the pca953x to be used as an interrupt
 771           controller. It requires the driver to be built in the kernel.
 772
 773 config GPIO_PCF857X
 774         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 775         select GPIOLIB_IRQCHIP
 776         select IRQ_DOMAIN
 777         help
 778           Say yes here to provide access to most "quasi-bidirectional" I2C
 779           GPIO expanders used for additional digital outputs or inputs.
 780           Most of these parts are from NXP, though TI is a second source for
 781           some of them.  Compatible models include:
 782
 783           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 784                     pca9670, pca9672, pca9674, pca9674a,
 785                     max7328, max7329
 786
 787           16 bits:  pcf8575, pcf8575c, pca8575,
 788                     pca9671, pca9673, pca9675
 789
 790           Your board setup code will need to declare the expanders in
 791           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 792           can then be used from drivers and other kernel code, just like
 793           other GPIOs, but only accessible from task contexts.
 794
 795           This driver provides an in-kernel interface to those GPIOs using
 796           platform-neutral GPIO calls.
 797
 798 config GPIO_SX150X
 799         bool "Semtech SX150x I2C GPIO expander (deprecated)"
 800         depends on PINCTRL && I2C=y
 801         select PINCTRL_SX150X
 802         default n
 803         help
 804           Say yes here to provide support for Semtech SX150x-series I2C
 805           GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
 806
 807 config GPIO_TPIC2810
 808         tristate "TPIC2810 8-Bit I2C GPO expander"
 809         help
 810           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 811
 812           To compile this driver as a module, choose M here: the module will
 813           be called gpio-tpic2810.
 814
 815 config GPIO_TS4900
 816         tristate "Technologic Systems FPGA I2C GPIO"
 817         depends on SOC_IMX6 || COMPILE_TEST
 818         select REGMAP_I2C
 819         help
 820           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 821           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 822
 823 endmenu
 824
 825 menu "MFD GPIO expanders"
 826
 827 config GPIO_ADP5520
 828         tristate "GPIO Support for ADP5520 PMIC"
 829         depends on PMIC_ADP5520
 830         help
 831           This option enables support for on-chip GPIO found
 832           on Analog Devices ADP5520 PMICs.
 833
 834 config GPIO_ALTERA_A10SR
 835         tristate "Altera Arria10 System Resource GPIO"
 836         depends on MFD_ALTERA_A10SR
 837         help
 838           Driver for Arria10 Development Kit GPIO expansion which
 839           includes reads of pushbuttons and DIP switches as well
 840           as writes to LEDs.
 841
 842 config GPIO_ARIZONA
 843         tristate "Wolfson Microelectronics Arizona class devices"
 844         depends on MFD_ARIZONA
 845         help
 846           Support for GPIOs on Wolfson Arizona class devices.
 847
 848 config GPIO_CRYSTAL_COVE
 849         tristate "GPIO support for Crystal Cove PMIC"
 850         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
 851         select GPIOLIB_IRQCHIP
 852         help
 853           Support for GPIO pins on Crystal Cove PMIC.
 854
 855           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 856           inside.
 857
 858           This driver can also be built as a module. If so, the module will be
 859           called gpio-crystalcove.
 860
 861 config GPIO_CS5535
 862         tristate "AMD CS5535/CS5536 GPIO support"
 863         depends on X86 || MIPS || COMPILE_TEST
 864         depends on MFD_CS5535
 865         help
 866           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 867           can be used for quite a number of things.  The CS5535/6 is found on
 868           AMD Geode and Lemote Yeeloong devices.
 869
 870           If unsure, say N.
 871
 872 config GPIO_DA9052
 873         tristate "Dialog DA9052 GPIO"
 874         depends on PMIC_DA9052
 875         help
 876           Say yes here to enable the GPIO driver for the DA9052 chip.
 877
 878 config GPIO_DA9055
 879         tristate "Dialog Semiconductor DA9055 GPIO"
 880         depends on MFD_DA9055
 881         help
 882           Say yes here to enable the GPIO driver for the DA9055 chip.
 883
 884           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 885           be controller by this driver.
 886
 887           If driver is built as a module it will be called gpio-da9055.
 888
 889 config GPIO_DLN2
 890         tristate "Diolan DLN2 GPIO support"
 891         depends on MFD_DLN2
 892         select GPIOLIB_IRQCHIP
 893
 894         help
 895           Select this option to enable GPIO driver for the Diolan DLN2
 896           board.
 897
 898           This driver can also be built as a module. If so, the module
 899           will be called gpio-dln2.
 900
 901 config HTC_EGPIO
 902         bool "HTC EGPIO support"
 903         depends on GPIOLIB && ARM
 904         help
 905             This driver supports the CPLD egpio chip present on
 906             several HTC phones.  It provides basic support for input
 907             pins, output pins, and irqs.
 908
 909 config GPIO_JANZ_TTL
 910         tristate "Janz VMOD-TTL Digital IO Module"
 911         depends on MFD_JANZ_CMODIO
 912         help
 913           This enables support for the Janz VMOD-TTL Digital IO module.
 914           This driver provides support for driving the pins in output
 915           mode only. Input mode is not supported.
 916
 917 config GPIO_KEMPLD
 918         tristate "Kontron ETX / COMexpress GPIO"
 919         depends on MFD_KEMPLD
 920         help
 921           This enables support for the PLD GPIO interface on some Kontron ETX
 922           and COMexpress (ETXexpress) modules.
 923
 924           This driver can also be built as a module. If so, the module will be
 925           called gpio-kempld.
 926
 927 config GPIO_LP3943
 928         tristate "TI/National Semiconductor LP3943 GPIO expander"
 929         depends on MFD_LP3943
 930         help
 931           GPIO driver for LP3943 MFD.
 932           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 933           Open drain outputs are required for this usage.
 934
 935 config GPIO_LP873X
 936         tristate "TI LP873X GPO"
 937         depends on MFD_TI_LP873X
 938         help
 939           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
 940           on LP873X PMICs.
 941
 942           This driver can also be built as a module. If so, the module will be
 943           called gpio-lp873x.
 944
 945 config GPIO_MAX77620
 946         tristate "GPIO support for PMIC MAX77620 and MAX20024"
 947         depends on MFD_MAX77620
 948         help
 949           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
 950           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
 951           driver also provides interrupt support for each of the gpios.
 952           Say yes here to enable the max77620 to be used as gpio controller.
 953
 954 config GPIO_MSIC
 955         bool "Intel MSIC mixed signal gpio support"
 956         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
 957         help
 958           Enable support for GPIO on intel MSIC controllers found in
 959           intel MID devices
 960
 961 config GPIO_PALMAS
 962         bool "TI PALMAS series PMICs GPIO"
 963         depends on MFD_PALMAS
 964         help
 965           Select this option to enable GPIO driver for the TI PALMAS
 966           series chip family.
 967
 968 config GPIO_RC5T583
 969         bool "RICOH RC5T583 GPIO"
 970         depends on MFD_RC5T583
 971         help
 972           Select this option to enable GPIO driver for the Ricoh RC5T583
 973           chip family.
 974           This driver provides the support for driving/reading the gpio pins
 975           of RC5T583 device through standard gpio library.
 976
 977 config GPIO_STMPE
 978         bool "STMPE GPIOs"
 979         depends on MFD_STMPE
 980         depends on OF_GPIO
 981         select GPIOLIB_IRQCHIP
 982         help
 983           This enables support for the GPIOs found on the STMPE I/O
 984           Expanders.
 985
 986 config GPIO_TC3589X
 987         bool "TC3589X GPIOs"
 988         depends on MFD_TC3589X
 989         depends on OF_GPIO
 990         select GPIOLIB_IRQCHIP
 991         help
 992           This enables support for the GPIOs found on the TC3589X
 993           I/O Expander.
 994
 995 config GPIO_TIMBERDALE
 996         bool "Support for timberdale GPIO IP"
 997         depends on MFD_TIMBERDALE
 998         ---help---
 999         Add support for the GPIO IP in the timberdale FPGA.
1000
1001 config GPIO_TPS65086
1002         tristate "TI TPS65086 GPO"
1003         depends on MFD_TPS65086
1004         help
1005           This driver supports the GPO on TI TPS65086x PMICs.
1006
1007 config GPIO_TPS65218
1008         tristate "TPS65218 GPIO"
1009         depends on MFD_TPS65218
1010         help
1011           Select this option to enable GPIO driver for the TPS65218
1012           chip family.
1013
1014 config GPIO_TPS6586X
1015         bool "TPS6586X GPIO"
1016         depends on MFD_TPS6586X
1017         help
1018           Select this option to enable GPIO driver for the TPS6586X
1019           chip family.
1020
1021 config GPIO_TPS65910
1022         bool "TPS65910 GPIO"
1023         depends on MFD_TPS65910
1024         help
1025           Select this option to enable GPIO driver for the TPS65910
1026           chip family.
1027
1028 config GPIO_TPS65912
1029         tristate "TI TPS65912 GPIO"
1030         depends on MFD_TPS65912
1031         help
1032           This driver supports TPS65912 gpio chip
1033
1034 config GPIO_TWL4030
1035         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1036         depends on TWL4030_CORE
1037         help
1038           Say yes here to access the GPIO signals of various multi-function
1039           power management chips from Texas Instruments.
1040
1041 config GPIO_TWL6040
1042         tristate "TWL6040 GPO"
1043         depends on TWL6040_CORE
1044         help
1045           Say yes here to access the GPO signals of twl6040
1046           audio chip from Texas Instruments.
1047
1048 config GPIO_UCB1400
1049         tristate "Philips UCB1400 GPIO"
1050         depends on UCB1400_CORE
1051         help
1052           This enables support for the Philips UCB1400 GPIO pins.
1053           The UCB1400 is an AC97 audio codec.
1054
1055 config GPIO_WHISKEY_COVE
1056         tristate "GPIO support for Whiskey Cove PMIC"
1057         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1058         select GPIOLIB_IRQCHIP
1059         help
1060           Support for GPIO pins on Whiskey Cove PMIC.
1061
1062           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1063           inside.
1064
1065           This driver can also be built as a module. If so, the module will be
1066           called gpio-wcove.
1067
1068 config GPIO_WM831X
1069         tristate "WM831x GPIOs"
1070         depends on MFD_WM831X
1071         help
1072           Say yes here to access the GPIO signals of WM831x power management
1073           chips from Wolfson Microelectronics.
1074
1075 config GPIO_WM8350
1076         tristate "WM8350 GPIOs"
1077         depends on MFD_WM8350
1078         help
1079           Say yes here to access the GPIO signals of WM8350 power management
1080           chips from Wolfson Microelectronics.
1081
1082 config GPIO_WM8994
1083         tristate "WM8994 GPIOs"
1084         depends on MFD_WM8994
1085         help
1086           Say yes here to access the GPIO signals of WM8994 audio hub
1087           CODECs from Wolfson Microelectronics.
1088
1089 endmenu
1090
1091 menu "PCI GPIO expanders"
1092         depends on PCI
1093
1094 config GPIO_AMD8111
1095         tristate "AMD 8111 GPIO driver"
1096         depends on X86 || COMPILE_TEST
1097         help
1098           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1099
1100           Note, that usually system firmware/ACPI handles GPIO pins on their
1101           own and users might easily break their systems with uncarefull usage
1102           of this driver!
1103
1104           If unsure, say N
1105
1106 config GPIO_BT8XX
1107         tristate "BT8XX GPIO abuser"
1108         depends on VIDEO_BT848=n
1109         help
1110           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1111           as a cheap PCI GPIO card.
1112
1113           This chip can be found on Miro, Hauppauge and STB TV-cards.
1114
1115           The card needs to be physically altered for using it as a
1116           GPIO card. For more information on how to build a GPIO card
1117           from a BT8xx TV card, see the documentation file at
1118           Documentation/bt8xxgpio.txt
1119
1120           If unsure, say N.
1121
1122 config GPIO_INTEL_MID
1123         bool "Intel MID GPIO support"
1124         depends on X86_INTEL_MID
1125         select GPIOLIB_IRQCHIP
1126         help
1127           Say Y here to support Intel MID GPIO.
1128
1129 config GPIO_MERRIFIELD
1130         tristate "Intel Merrifield GPIO support"
1131         depends on X86_INTEL_MID
1132         select GPIOLIB_IRQCHIP
1133         help
1134           Say Y here to support Intel Merrifield GPIO.
1135
1136 config GPIO_ML_IOH
1137         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1138         depends on X86 || COMPILE_TEST
1139         select GENERIC_IRQ_CHIP
1140         help
1141           ML7213 is companion chip for Intel Atom E6xx series.
1142           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1143           Hub) which is for IVI(In-Vehicle Infotainment) use.
1144           This driver can access the IOH's GPIO device.
1145
1146 config GPIO_PCH
1147         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1148         depends on X86_32 || MIPS || COMPILE_TEST
1149         select GENERIC_IRQ_CHIP
1150         help
1151           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1152           which is an IOH(Input/Output Hub) for x86 embedded processor.
1153           This driver can access PCH GPIO device.
1154
1155           This driver also can be used for LAPIS Semiconductor IOH(Input/
1156           Output Hub), ML7223 and ML7831.
1157           ML7223 IOH is for MP(Media Phone) use.
1158           ML7831 IOH is for general purpose use.
1159           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1160           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1161
1162 config GPIO_PCI_IDIO_16
1163         tristate "ACCES PCI-IDIO-16 GPIO support"
1164         select GPIOLIB_IRQCHIP
1165         help
1166           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1167           generated when any of the inputs change state (low to high or high to
1168           low). Input filter control is not supported by this driver, and the
1169           input filters are deactivated by this driver.
1170
1171 config GPIO_RDC321X
1172         tristate "RDC R-321x GPIO support"
1173         select MFD_CORE
1174         select MFD_RDC321X
1175         help
1176           Support for the RDC R321x SoC GPIOs over southbridge
1177           PCI configuration space.
1178
1179 config GPIO_SODAVILLE
1180         bool "Intel Sodaville GPIO support"
1181         depends on X86 && OF
1182         select GPIO_GENERIC
1183         select GENERIC_IRQ_CHIP
1184         help
1185           Say Y here to support Intel Sodaville GPIO.
1186
1187 endmenu
1188
1189 menu "SPI GPIO expanders"
1190         depends on SPI_MASTER
1191
1192 config GPIO_74X164
1193         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1194         depends on OF_GPIO
1195         help
1196           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1197           shift registers. This driver can be used to provide access
1198           to more gpio outputs.
1199
1200 config GPIO_MAX7301
1201         tristate "Maxim MAX7301 GPIO expander"
1202         select GPIO_MAX730X
1203         help
1204           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1205
1206 config GPIO_MC33880
1207         tristate "Freescale MC33880 high-side/low-side switch"
1208         help
1209           SPI driver for Freescale MC33880 high-side/low-side switch.
1210           This provides GPIO interface supporting inputs and outputs.
1211
1212 config GPIO_PISOSR
1213         tristate "Generic parallel-in/serial-out shift register"
1214         help
1215           GPIO driver for SPI compatible parallel-in/serial-out shift
1216           registers. These are input only devices.
1217
1218 endmenu
1219
1220 menu "SPI or I2C GPIO expanders"
1221         depends on (SPI_MASTER && !I2C) || I2C
1222
1223 config GPIO_MCP23S08
1224         tristate "Microchip MCP23xxx I/O expander"
1225         depends on OF_GPIO
1226         select GPIOLIB_IRQCHIP
1227         select REGMAP_I2C if I2C
1228         select REGMAP if SPI_MASTER
1229         help
1230           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1231           I/O expanders.
1232           This provides a GPIO interface supporting inputs and outputs.
1233           The I2C versions of the chips can be used as interrupt-controller.
1234
1235 endmenu
1236
1237 menu "USB GPIO expanders"
1238         depends on USB
1239
1240 config GPIO_VIPERBOARD
1241         tristate "Viperboard GPIO a & b support"
1242         depends on MFD_VIPERBOARD
1243         help
1244           Say yes here to access the GPIO signals of Nano River
1245           Technologies Viperboard. There are two GPIO chips on the
1246           board: gpioa and gpiob.
1247           See viperboard API specification and Nano
1248           River Tech's viperboard.h for detailed meaning
1249           of the module parameters.
1250
1251 endmenu
1252
1253 endif