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