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_EXP
 132         bool "Broadcom Exp GPIO"
 133         depends on OF_GPIO && RASPBERRYPI_FIRMWARE && (ARCH_BCM2835 || COMPILE_TEST)
 134         help
 135           Turn on GPIO support for Broadcom chips using the firmware mailbox
 136           to communicate with VideoCore on BCM283x chips.
 137
 138 config GPIO_BCM_KONA
 139         bool "Broadcom Kona GPIO"
 140         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 141         help
 142           Turn on GPIO support for Broadcom "Kona" chips.
 143
 144 config GPIO_BCM_VIRT
 145         bool "Broadcom Virt GPIO"
 146         depends on OF_GPIO && RASPBERRYPI_FIRMWARE && (ARCH_BCM2835 || COMPILE_TEST)
 147         help
 148           Turn on virtual GPIO support for Broadcom BCM283X chips.
 149
 150 config GPIO_BRCMSTB
 151         tristate "BRCMSTB GPIO support"
 152         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 153         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 154         select GPIO_GENERIC
 155         select GPIOLIB_IRQCHIP
 156         help
 157           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 158
 159 config GPIO_CLPS711X
 160         tristate "CLPS711X GPIO support"
 161         depends on ARCH_CLPS711X || COMPILE_TEST
 162         select GPIO_GENERIC
 163         help
 164           Say yes here to support GPIO on CLPS711X SoCs.
 165
 166 config GPIO_DAVINCI
 167         bool "TI Davinci/Keystone GPIO support"
 168         default y if ARCH_DAVINCI
 169         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 170         help
 171           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 172
 173 config GPIO_DWAPB
 174         tristate "Synopsys DesignWare APB GPIO driver"
 175         select GPIO_GENERIC
 176         select GENERIC_IRQ_CHIP
 177         help
 178           Say Y or M here to build support for the Synopsys DesignWare APB
 179           GPIO block.
 180
 181 config GPIO_EM
 182         tristate "Emma Mobile GPIO"
 183         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 184         help
 185           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 186
 187 config GPIO_EP93XX
 188         def_bool y
 189         depends on ARCH_EP93XX
 190         select GPIO_GENERIC
 191
 192 config GPIO_ETRAXFS
 193         bool "Axis ETRAX FS General I/O"
 194         depends on CRIS || COMPILE_TEST
 195         depends on OF_GPIO
 196         select GPIO_GENERIC
 197         select GPIOLIB_IRQCHIP
 198         help
 199           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 200
 201 config GPIO_GE_FPGA
 202         bool "GE FPGA based GPIO"
 203         depends on GE_FPGA
 204         select GPIO_GENERIC
 205         help
 206           Support for common GPIO functionality provided on some GE Single Board
 207           Computers.
 208
 209           This driver provides basic support (configure as input or output, read
 210           and write pin state) for GPIO implemented in a number of GE single
 211           board computers.
 212
 213 config GPIO_GENERIC_PLATFORM
 214         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 215         select GPIO_GENERIC
 216         help
 217           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 218
 219 config GPIO_GRGPIO
 220         tristate "Aeroflex Gaisler GRGPIO support"
 221         depends on OF_GPIO
 222         select GPIO_GENERIC
 223         select IRQ_DOMAIN
 224         help
 225           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 226           VHDL IP core library.
 227
 228 config GPIO_ICH
 229         tristate "Intel ICH GPIO"
 230         depends on PCI && X86
 231         select MFD_CORE
 232         select LPC_ICH
 233         help
 234           Say yes here to support the GPIO functionality of a number of Intel
 235           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 236           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 237           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 238
 239           If unsure, say N.
 240
 241 config GPIO_IOP
 242         tristate "Intel IOP GPIO"
 243         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
 244         select GPIO_GENERIC
 245         help
 246           Say yes here to support the GPIO functionality of a number of Intel
 247           IOP32X or IOP33X.
 248
 249           If unsure, say N.
 250
 251 config GPIO_LOONGSON
 252         bool "Loongson-2/3 GPIO support"
 253         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 254         help
 255           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 256
 257 config GPIO_LPC18XX
 258         tristate "NXP LPC18XX/43XX GPIO support"
 259         default y if ARCH_LPC18XX
 260         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 261         help
 262           Select this option to enable GPIO driver for
 263           NXP LPC18XX/43XX devices.
 264
 265 config GPIO_LYNXPOINT
 266         tristate "Intel Lynxpoint GPIO support"
 267         depends on ACPI && X86
 268         select GPIOLIB_IRQCHIP
 269         help
 270           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 271           Requires ACPI device enumeration code to set up a platform device.
 272
 273 config GPIO_MB86S7X
 274         bool "GPIO support for Fujitsu MB86S7x Platforms"
 275         depends on ARCH_MB86S7X || COMPILE_TEST
 276         help
 277           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 278
 279 config GPIO_MENZ127
 280         tristate "MEN 16Z127 GPIO support"
 281         depends on MCB
 282         select GPIO_GENERIC
 283         help
 284          Say yes here to support the MEN 16Z127 GPIO Controller
 285
 286 config GPIO_MM_LANTIQ
 287         bool "Lantiq Memory mapped GPIOs"
 288         depends on LANTIQ && SOC_XWAY
 289         help
 290           This enables support for memory mapped GPIOs on the External Bus Unit
 291           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 292           created by attaching a 16bit latch to the bus.
 293
 294 config GPIO_MOCKUP
 295         tristate "GPIO Testing Driver"
 296         depends on GPIOLIB && SYSFS
 297         select GPIO_SYSFS
 298         help
 299           This enables GPIO Testing driver, which provides a way to test GPIO
 300           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
 301           must be selected for this test.
 302           User could use it through the script in
 303           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
 304           it.
 305
 306 config GPIO_MOXART
 307         bool "MOXART GPIO support"
 308         depends on ARCH_MOXART || COMPILE_TEST
 309         select GPIO_GENERIC
 310         help
 311           Select this option to enable GPIO driver for
 312           MOXA ART SoC devices.
 313
 314 config GPIO_MPC5200
 315         def_bool y
 316         depends on PPC_MPC52xx
 317
 318 config GPIO_MPC8XXX
 319         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 320         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 321                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 322                    COMPILE_TEST
 323         select GPIO_GENERIC
 324         select IRQ_DOMAIN
 325         help
 326           Say Y here if you're going to use hardware that connects to the
 327           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 328
 329 config GPIO_MVEBU
 330         def_bool y
 331         depends on PLAT_ORION
 332         depends on OF_GPIO
 333         select GENERIC_IRQ_CHIP
 334
 335 config GPIO_MXC
 336         def_bool y
 337         depends on ARCH_MXC
 338         select GPIO_GENERIC
 339         select GENERIC_IRQ_CHIP
 340
 341 config GPIO_MXS
 342         def_bool y
 343         depends on ARCH_MXS
 344         select GPIO_GENERIC
 345         select GENERIC_IRQ_CHIP
 346
 347 config GPIO_OCTEON
 348         tristate "Cavium OCTEON GPIO"
 349         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 350         default y
 351         help
 352           Say yes here to support the on-chip GPIO lines on the OCTEON
 353           family of SOCs.
 354
 355 config GPIO_OMAP
 356         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 357         default y if ARCH_OMAP
 358         depends on ARM
 359         select GENERIC_IRQ_CHIP
 360         select GPIOLIB_IRQCHIP
 361         help
 362           Say yes here to enable GPIO support for TI OMAP SoCs.
 363
 364 config GPIO_PL061
 365         bool "PrimeCell PL061 GPIO support"
 366         depends on ARM_AMBA
 367         select IRQ_DOMAIN
 368         select GPIOLIB_IRQCHIP
 369         help
 370           Say yes here to support the PrimeCell PL061 GPIO device
 371
 372 config GPIO_PXA
 373         bool "PXA GPIO support"
 374         depends on ARCH_PXA || ARCH_MMP
 375         help
 376           Say yes here to support the PXA GPIO device
 377
 378 config GPIO_RCAR
 379         tristate "Renesas R-Car GPIO"
 380         depends on ARCH_RENESAS || COMPILE_TEST
 381         select GPIOLIB_IRQCHIP
 382         help
 383           Say yes here to support GPIO on Renesas R-Car SoCs.
 384
 385 config GPIO_SPEAR_SPICS
 386         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 387         depends on PLAT_SPEAR
 388         select GENERIC_IRQ_CHIP
 389         help
 390           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 391
 392 config GPIO_STA2X11
 393         bool "STA2x11/ConneXt GPIO support"
 394         depends on MFD_STA2X11
 395         select GENERIC_IRQ_CHIP
 396         help
 397           Say yes here to support the STA2x11/ConneXt GPIO device.
 398           The GPIO module has 128 GPIO pins with alternate functions.
 399
 400 config GPIO_STP_XWAY
 401         bool "XWAY STP GPIOs"
 402         depends on SOC_XWAY
 403         help
 404           This enables support for the Serial To Parallel (STP) unit found on
 405           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 406           that can be up to 24 bit. This peripheral is aimed at driving leds.
 407           Some of the gpios/leds can be auto updated by the soc with dsl and
 408           phy status.
 409
 410 config GPIO_SYSCON
 411         tristate "GPIO based on SYSCON"
 412         depends on MFD_SYSCON && OF
 413         help
 414           Say yes here to support GPIO functionality though SYSCON driver.
 415
 416 config GPIO_TB10X
 417         bool
 418         select GENERIC_IRQ_CHIP
 419         select OF_GPIO
 420
 421 config GPIO_TEGRA
 422         bool "NVIDIA Tegra GPIO support"
 423         default ARCH_TEGRA
 424         depends on ARCH_TEGRA || COMPILE_TEST
 425         depends on OF_GPIO
 426         help
 427           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 428
 429 config GPIO_TS4800
 430         tristate "TS-4800 DIO blocks and compatibles"
 431         depends on OF_GPIO
 432         depends on SOC_IMX51 || COMPILE_TEST
 433         select GPIO_GENERIC
 434         help
 435           This driver support TS-4800 FPGA GPIO controllers.
 436
 437 config GPIO_TZ1090
 438         bool "Toumaz Xenif TZ1090 GPIO support"
 439         depends on SOC_TZ1090
 440         select GENERIC_IRQ_CHIP
 441         default y
 442         help
 443           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 444
 445 config GPIO_TZ1090_PDC
 446         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 447         depends on SOC_TZ1090
 448         default y
 449         help
 450           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 451
 452 config GPIO_VF610
 453         def_bool y
 454         depends on ARCH_MXC && SOC_VF610
 455         select GPIOLIB_IRQCHIP
 456         help
 457           Say yes here to support Vybrid vf610 GPIOs.
 458
 459 config GPIO_VR41XX
 460         tristate "NEC VR4100 series General-purpose I/O Uint support"
 461         depends on CPU_VR41XX
 462         help
 463           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 464
 465 config GPIO_VX855
 466         tristate "VIA VX855/VX875 GPIO"
 467         depends on (X86 || COMPILE_TEST) && PCI
 468         select MFD_CORE
 469         select MFD_VX855
 470         help
 471           Support access to the VX855/VX875 GPIO lines through the gpio library.
 472
 473           This driver provides common support for accessing the device,
 474           additional drivers must be enabled in order to use the
 475           functionality of the device.
 476
 477 config GPIO_XGENE
 478         bool "APM X-Gene GPIO controller support"
 479         depends on ARM64 && OF_GPIO
 480         help
 481           This driver is to support the GPIO block within the APM X-Gene SoC
 482           platform's generic flash controller. The GPIO pins are muxed with
 483           the generic flash controller's address and data pins. Say yes
 484           here to enable the GFC GPIO functionality.
 485
 486 config GPIO_XGENE_SB
 487         tristate "APM X-Gene GPIO standby controller support"
 488         depends on ARCH_XGENE && OF_GPIO
 489         select GPIO_GENERIC
 490         select GPIOLIB_IRQCHIP
 491         help
 492           This driver supports the GPIO block within the APM X-Gene
 493           Standby Domain. Say yes here to enable the GPIO functionality.
 494
 495 config GPIO_XILINX
 496         tristate "Xilinx GPIO support"
 497         depends on OF_GPIO
 498         help
 499           Say yes here to support the Xilinx FPGA GPIO device
 500
 501 config GPIO_XLP
 502         tristate "Netlogic XLP GPIO support"
 503         depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST)
 504         select GPIOLIB_IRQCHIP
 505         help
 506           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 507           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 508           XLP9XX and XLP5XX.
 509
 510           If unsure, say N.
 511
 512 config GPIO_XTENSA
 513         bool "Xtensa GPIO32 support"
 514         depends on XTENSA
 515         depends on HAVE_XTENSA_GPIO32
 516         depends on !SMP
 517         help
 518           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 519           and EXPSTATE (output) ports
 520
 521 config GPIO_ZEVIO
 522         bool "LSI ZEVIO SoC memory mapped GPIOs"
 523         depends on ARM && OF_GPIO
 524         help
 525           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 526
 527 config GPIO_ZYNQ
 528         tristate "Xilinx Zynq GPIO support"
 529         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 530         select GPIOLIB_IRQCHIP
 531         help
 532           Say yes here to support Xilinx Zynq GPIO controller.
 533
 534 config GPIO_ZX
 535         bool "ZTE ZX GPIO support"
 536         depends on ARCH_ZX || COMPILE_TEST
 537         select GPIOLIB_IRQCHIP
 538         help
 539           Say yes here to support the GPIO device on ZTE ZX SoCs.
 540
 541 config GPIO_LOONGSON1
 542         tristate "Loongson1 GPIO support"
 543         depends on MACH_LOONGSON32
 544         select GPIO_GENERIC
 545         help
 546           Say Y or M here to support GPIO on Loongson1 SoCs.
 547
 548 endmenu
 549
 550 menu "Port-mapped I/O GPIO drivers"
 551         depends on X86 # Unconditional I/O space access
 552
 553 config GPIO_104_DIO_48E
 554         tristate "ACCES 104-DIO-48E GPIO support"
 555         depends on ISA_BUS_API
 556         select GPIOLIB_IRQCHIP
 557         help
 558           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 559           104-DIO-24E). The base port addresses for the devices may be
 560           configured via the base module parameter. The interrupt line numbers
 561           for the devices may be configured via the irq module parameter.
 562
 563 config GPIO_104_IDIO_16
 564         tristate "ACCES 104-IDIO-16 GPIO support"
 565         depends on ISA_BUS_API
 566         select GPIOLIB_IRQCHIP
 567         help
 568           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 569           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 570           base port addresses for the devices may be configured via the base
 571           module parameter. The interrupt line numbers for the devices may be
 572           configured via the irq module parameter.
 573
 574 config GPIO_104_IDI_48
 575         tristate "ACCES 104-IDI-48 GPIO support"
 576         depends on ISA_BUS_API
 577         select GPIOLIB_IRQCHIP
 578         help
 579           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 580           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 581           the devices may be configured via the base module parameter. The
 582           interrupt line numbers for the devices may be configured via the irq
 583           module parameter.
 584
 585 config GPIO_F7188X
 586         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 587         help
 588           This option enables support for GPIOs found on Fintek Super-I/O
 589           chips F71869, F71869A, F71882FG, F71889F and F81866.
 590
 591           To compile this driver as a module, choose M here: the module will
 592           be called f7188x-gpio.
 593
 594 config GPIO_GPIO_MM
 595         tristate "Diamond Systems GPIO-MM GPIO support"
 596         depends on ISA_BUS_API
 597         help
 598           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 599
 600           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 601           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 602           support for these 48 channels of digital I/O.
 603
 604           The base port addresses for the devices may be configured via the base
 605           array module parameter.
 606
 607 config GPIO_IT87
 608         tristate "IT87xx GPIO support"
 609         help
 610           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 611
 612           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 613           supports the IT8761E, IT8620E and IT8628E Super I/O chip as well.
 614
 615           To compile this driver as a module, choose M here: the module will
 616           be called gpio_it87
 617
 618 config GPIO_SCH
 619         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 620         depends on (X86 || COMPILE_TEST) && PCI
 621         select MFD_CORE
 622         select LPC_SCH
 623         help
 624           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 625           Intel Tunnel Creek processor, Intel Centerton processor or
 626           Intel Quark X1000 SoC.
 627
 628           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 629           powered by the core power rail and are turned off during sleep
 630           modes (S3 and higher). The remaining four GPIOs are powered by
 631           the Intel SCH suspend power supply. These GPIOs remain
 632           active during S3. The suspend powered GPIOs can be used to wake the
 633           system from the Suspend-to-RAM state.
 634
 635           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 636           core power rail and 9 from suspend power supply.
 637
 638           The Intel Centerton processor has a total of 30 GPIO pins.
 639           Twenty-one are powered by the core power rail and 9 from the
 640           suspend power supply.
 641
 642           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 643           power well and 6 from the suspend power well.
 644
 645 config GPIO_SCH311X
 646         tristate "SMSC SCH311x SuperI/O GPIO"
 647         help
 648           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 649           SCH3116 "Super I/O" chipsets.
 650
 651           To compile this driver as a module, choose M here: the module will
 652           be called gpio-sch311x.
 653
 654 config GPIO_TS5500
 655         tristate "TS-5500 DIO blocks and compatibles"
 656         depends on TS5500 || COMPILE_TEST
 657         help
 658           This driver supports Digital I/O exposed by pin blocks found on some
 659           Technologic Systems platforms. It includes, but is not limited to, 3
 660           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 661           LCD port.
 662
 663 config GPIO_WS16C48
 664         tristate "WinSystems WS16C48 GPIO support"
 665         depends on ISA_BUS_API
 666         select GPIOLIB_IRQCHIP
 667         help
 668           Enables GPIO support for the WinSystems WS16C48. The base port
 669           addresses for the devices may be configured via the base module
 670           parameter. The interrupt line numbers for the devices may be
 671           configured via the irq module parameter.
 672
 673 endmenu
 674
 675 menu "I2C GPIO expanders"
 676         depends on I2C
 677
 678 config GPIO_ADP5588
 679         tristate "ADP5588 I2C GPIO expander"
 680         help
 681           This option enables support for 18 GPIOs found
 682           on Analog Devices ADP5588 GPIO Expanders.
 683
 684 config GPIO_ADP5588_IRQ
 685         bool "Interrupt controller support for ADP5588"
 686         depends on GPIO_ADP5588=y
 687         help
 688           Say yes here to enable the adp5588 to be used as an interrupt
 689           controller. It requires the driver to be built in the kernel.
 690
 691 config GPIO_ADNP
 692         tristate "Avionic Design N-bit GPIO expander"
 693         depends on OF_GPIO
 694         select GPIOLIB_IRQCHIP
 695         help
 696           This option enables support for N GPIOs found on Avionic Design
 697           I2C GPIO expanders. The register space will be extended by powers
 698           of two, so the controller will need to accommodate for that. For
 699           example: if a controller provides 48 pins, 6 registers will be
 700           enough to represent all pins, but the driver will assume a
 701           register layout for 64 pins (8 registers).
 702
 703 config GPIO_MAX7300
 704         tristate "Maxim MAX7300 GPIO expander"
 705         select GPIO_MAX730X
 706         help
 707           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 708
 709 config GPIO_MAX732X
 710         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 711         help
 712           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 713           Port Expanders. Each IO port on these chips has a fixed role of
 714           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 715           Input and Output (designed by 'P'). The combinations are listed
 716           below:
 717
 718           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 719                         max7322 (4I4O), max7323 (4P4O)
 720
 721           16 bits:      max7324 (8I8O), max7325 (8P8O),
 722                         max7326 (4I12O), max7327 (4P12O)
 723
 724           Board setup code must specify the model to use, and the start
 725           number for these GPIOs.
 726
 727 config GPIO_MAX732X_IRQ
 728         bool "Interrupt controller support for MAX732x"
 729         depends on GPIO_MAX732X=y
 730         select GPIOLIB_IRQCHIP
 731         help
 732           Say yes here to enable the max732x to be used as an interrupt
 733           controller. It requires the driver to be built in the kernel.
 734
 735 config GPIO_MC9S08DZ60
 736         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 737         depends on I2C=y && MACH_MX35_3DS
 738         help
 739           Select this to enable the MC9S08DZ60 GPIO driver
 740
 741 config GPIO_PCA953X
 742         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 743         help
 744           Say yes here to provide access to several register-oriented
 745           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 746           models include:
 747
 748           4 bits:       pca9536, pca9537
 749
 750           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 751                         pca9556, pca9557, pca9574, tca6408, xra1202
 752
 753           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 754                         tca6416
 755
 756           24 bits:      tca6424
 757
 758           40 bits:      pca9505, pca9698
 759
 760 config GPIO_PCA953X_IRQ
 761         bool "Interrupt controller support for PCA953x"
 762         depends on GPIO_PCA953X=y
 763         select GPIOLIB_IRQCHIP
 764         help
 765           Say yes here to enable the pca953x to be used as an interrupt
 766           controller. It requires the driver to be built in the kernel.
 767
 768 config GPIO_PCF857X
 769         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 770         select GPIOLIB_IRQCHIP
 771         select IRQ_DOMAIN
 772         help
 773           Say yes here to provide access to most "quasi-bidirectional" I2C
 774           GPIO expanders used for additional digital outputs or inputs.
 775           Most of these parts are from NXP, though TI is a second source for
 776           some of them.  Compatible models include:
 777
 778           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 779                     pca9670, pca9672, pca9674, pca9674a,
 780                     max7328, max7329
 781
 782           16 bits:  pcf8575, pcf8575c, pca8575,
 783                     pca9671, pca9673, pca9675
 784
 785           Your board setup code will need to declare the expanders in
 786           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 787           can then be used from drivers and other kernel code, just like
 788           other GPIOs, but only accessible from task contexts.
 789
 790           This driver provides an in-kernel interface to those GPIOs using
 791           platform-neutral GPIO calls.
 792
 793 config GPIO_SX150X
 794         bool "Semtech SX150x I2C GPIO expander (deprecated)"
 795         depends on PINCTRL && I2C=y
 796         select PINCTRL_SX150X
 797         default n
 798         help
 799           Say yes here to provide support for Semtech SX150x-series I2C
 800           GPIO expanders. The GPIO driver was replaced by a Pinctrl version.
 801
 802 config GPIO_TPIC2810
 803         tristate "TPIC2810 8-Bit I2C GPO expander"
 804         help
 805           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 806
 807           To compile this driver as a module, choose M here: the module will
 808           be called gpio-tpic2810.
 809
 810 config GPIO_TS4900
 811         tristate "Technologic Systems FPGA I2C GPIO"
 812         depends on SOC_IMX6 || COMPILE_TEST
 813         select REGMAP_I2C
 814         help
 815           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 816           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 817
 818 endmenu
 819
 820 menu "MFD GPIO expanders"
 821
 822 config GPIO_ADP5520
 823         tristate "GPIO Support for ADP5520 PMIC"
 824         depends on PMIC_ADP5520
 825         help
 826           This option enables support for on-chip GPIO found
 827           on Analog Devices ADP5520 PMICs.
 828
 829 config GPIO_ALTERA_A10SR
 830         tristate "Altera Arria10 System Resource GPIO"
 831         depends on MFD_ALTERA_A10SR
 832         help
 833           Driver for Arria10 Development Kit GPIO expansion which
 834           includes reads of pushbuttons and DIP switches as well
 835           as writes to LEDs.
 836
 837 config GPIO_ARIZONA
 838         tristate "Wolfson Microelectronics Arizona class devices"
 839         depends on MFD_ARIZONA
 840         help
 841           Support for GPIOs on Wolfson Arizona class devices.
 842
 843 config GPIO_CRYSTAL_COVE
 844         tristate "GPIO support for Crystal Cove PMIC"
 845         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
 846         select GPIOLIB_IRQCHIP
 847         help
 848           Support for GPIO pins on Crystal Cove PMIC.
 849
 850           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 851           inside.
 852
 853           This driver can also be built as a module. If so, the module will be
 854           called gpio-crystalcove.
 855
 856 config GPIO_CS5535
 857         tristate "AMD CS5535/CS5536 GPIO support"
 858         depends on X86 || MIPS || COMPILE_TEST
 859         depends on MFD_CS5535
 860         help
 861           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 862           can be used for quite a number of things.  The CS5535/6 is found on
 863           AMD Geode and Lemote Yeeloong devices.
 864
 865           If unsure, say N.
 866
 867 config GPIO_DA9052
 868         tristate "Dialog DA9052 GPIO"
 869         depends on PMIC_DA9052
 870         help
 871           Say yes here to enable the GPIO driver for the DA9052 chip.
 872
 873 config GPIO_DA9055
 874         tristate "Dialog Semiconductor DA9055 GPIO"
 875         depends on MFD_DA9055
 876         help
 877           Say yes here to enable the GPIO driver for the DA9055 chip.
 878
 879           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 880           be controller by this driver.
 881
 882           If driver is built as a module it will be called gpio-da9055.
 883
 884 config GPIO_DLN2
 885         tristate "Diolan DLN2 GPIO support"
 886         depends on MFD_DLN2
 887         select GPIOLIB_IRQCHIP
 888
 889         help
 890           Select this option to enable GPIO driver for the Diolan DLN2
 891           board.
 892
 893           This driver can also be built as a module. If so, the module
 894           will be called gpio-dln2.
 895
 896 config HTC_EGPIO
 897         bool "HTC EGPIO support"
 898         depends on GPIOLIB && ARM
 899         help
 900             This driver supports the CPLD egpio chip present on
 901             several HTC phones.  It provides basic support for input
 902             pins, output pins, and irqs.
 903
 904 config GPIO_JANZ_TTL
 905         tristate "Janz VMOD-TTL Digital IO Module"
 906         depends on MFD_JANZ_CMODIO
 907         help
 908           This enables support for the Janz VMOD-TTL Digital IO module.
 909           This driver provides support for driving the pins in output
 910           mode only. Input mode is not supported.
 911
 912 config GPIO_KEMPLD
 913         tristate "Kontron ETX / COMexpress GPIO"
 914         depends on MFD_KEMPLD
 915         help
 916           This enables support for the PLD GPIO interface on some Kontron ETX
 917           and COMexpress (ETXexpress) modules.
 918
 919           This driver can also be built as a module. If so, the module will be
 920           called gpio-kempld.
 921
 922 config GPIO_LP3943
 923         tristate "TI/National Semiconductor LP3943 GPIO expander"
 924         depends on MFD_LP3943
 925         help
 926           GPIO driver for LP3943 MFD.
 927           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 928           Open drain outputs are required for this usage.
 929
 930 config GPIO_LP873X
 931         tristate "TI LP873X GPO"
 932         depends on MFD_TI_LP873X
 933         help
 934           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
 935           on LP873X PMICs.
 936
 937           This driver can also be built as a module. If so, the module will be
 938           called gpio-lp873x.
 939
 940 config GPIO_MAX77620
 941         tristate "GPIO support for PMIC MAX77620 and MAX20024"
 942         depends on MFD_MAX77620
 943         help
 944           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
 945           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
 946           driver also provides interrupt support for each of the gpios.
 947           Say yes here to enable the max77620 to be used as gpio controller.
 948
 949 config GPIO_MSIC
 950         bool "Intel MSIC mixed signal gpio support"
 951         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
 952         help
 953           Enable support for GPIO on intel MSIC controllers found in
 954           intel MID devices
 955
 956 config GPIO_PALMAS
 957         bool "TI PALMAS series PMICs GPIO"
 958         depends on MFD_PALMAS
 959         help
 960           Select this option to enable GPIO driver for the TI PALMAS
 961           series chip family.
 962
 963 config GPIO_RC5T583
 964         bool "RICOH RC5T583 GPIO"
 965         depends on MFD_RC5T583
 966         help
 967           Select this option to enable GPIO driver for the Ricoh RC5T583
 968           chip family.
 969           This driver provides the support for driving/reading the gpio pins
 970           of RC5T583 device through standard gpio library.
 971
 972 config GPIO_STMPE
 973         bool "STMPE GPIOs"
 974         depends on MFD_STMPE
 975         depends on OF_GPIO
 976         select GPIOLIB_IRQCHIP
 977         help
 978           This enables support for the GPIOs found on the STMPE I/O
 979           Expanders.
 980
 981 config GPIO_TC3589X
 982         bool "TC3589X GPIOs"
 983         depends on MFD_TC3589X
 984         depends on OF_GPIO
 985         select GPIOLIB_IRQCHIP
 986         help
 987           This enables support for the GPIOs found on the TC3589X
 988           I/O Expander.
 989
 990 config GPIO_TIMBERDALE
 991         bool "Support for timberdale GPIO IP"
 992         depends on MFD_TIMBERDALE
 993         ---help---
 994         Add support for the GPIO IP in the timberdale FPGA.
 995
 996 config GPIO_TPS65086
 997         tristate "TI TPS65086 GPO"
 998         depends on MFD_TPS65086
 999         help
1000           This driver supports the GPO on TI TPS65086x PMICs.
1001
1002 config GPIO_TPS65218
1003         tristate "TPS65218 GPIO"
1004         depends on MFD_TPS65218
1005         help
1006           Select this option to enable GPIO driver for the TPS65218
1007           chip family.
1008
1009 config GPIO_TPS6586X
1010         bool "TPS6586X GPIO"
1011         depends on MFD_TPS6586X
1012         help
1013           Select this option to enable GPIO driver for the TPS6586X
1014           chip family.
1015
1016 config GPIO_TPS65910
1017         bool "TPS65910 GPIO"
1018         depends on MFD_TPS65910
1019         help
1020           Select this option to enable GPIO driver for the TPS65910
1021           chip family.
1022
1023 config GPIO_TPS65912
1024         tristate "TI TPS65912 GPIO"
1025         depends on MFD_TPS65912
1026         help
1027           This driver supports TPS65912 gpio chip
1028
1029 config GPIO_TWL4030
1030         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1031         depends on TWL4030_CORE
1032         help
1033           Say yes here to access the GPIO signals of various multi-function
1034           power management chips from Texas Instruments.
1035
1036 config GPIO_TWL6040
1037         tristate "TWL6040 GPO"
1038         depends on TWL6040_CORE
1039         help
1040           Say yes here to access the GPO signals of twl6040
1041           audio chip from Texas Instruments.
1042
1043 config GPIO_UCB1400
1044         tristate "Philips UCB1400 GPIO"
1045         depends on UCB1400_CORE
1046         help
1047           This enables support for the Philips UCB1400 GPIO pins.
1048           The UCB1400 is an AC97 audio codec.
1049
1050 config GPIO_WHISKEY_COVE
1051         tristate "GPIO support for Whiskey Cove PMIC"
1052         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1053         select GPIOLIB_IRQCHIP
1054         help
1055           Support for GPIO pins on Whiskey Cove PMIC.
1056
1057           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1058           inside.
1059
1060           This driver can also be built as a module. If so, the module will be
1061           called gpio-wcove.
1062
1063 config GPIO_WM831X
1064         tristate "WM831x GPIOs"
1065         depends on MFD_WM831X
1066         help
1067           Say yes here to access the GPIO signals of WM831x power management
1068           chips from Wolfson Microelectronics.
1069
1070 config GPIO_WM8350
1071         tristate "WM8350 GPIOs"
1072         depends on MFD_WM8350
1073         help
1074           Say yes here to access the GPIO signals of WM8350 power management
1075           chips from Wolfson Microelectronics.
1076
1077 config GPIO_WM8994
1078         tristate "WM8994 GPIOs"
1079         depends on MFD_WM8994
1080         help
1081           Say yes here to access the GPIO signals of WM8994 audio hub
1082           CODECs from Wolfson Microelectronics.
1083
1084 endmenu
1085
1086 menu "PCI GPIO expanders"
1087         depends on PCI
1088
1089 config GPIO_AMD8111
1090         tristate "AMD 8111 GPIO driver"
1091         depends on X86 || COMPILE_TEST
1092         help
1093           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1094
1095           Note, that usually system firmware/ACPI handles GPIO pins on their
1096           own and users might easily break their systems with uncarefull usage
1097           of this driver!
1098
1099           If unsure, say N
1100
1101 config GPIO_BT8XX
1102         tristate "BT8XX GPIO abuser"
1103         depends on VIDEO_BT848=n
1104         help
1105           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1106           as a cheap PCI GPIO card.
1107
1108           This chip can be found on Miro, Hauppauge and STB TV-cards.
1109
1110           The card needs to be physically altered for using it as a
1111           GPIO card. For more information on how to build a GPIO card
1112           from a BT8xx TV card, see the documentation file at
1113           Documentation/bt8xxgpio.txt
1114
1115           If unsure, say N.
1116
1117 config GPIO_INTEL_MID
1118         bool "Intel MID GPIO support"
1119         depends on X86_INTEL_MID
1120         select GPIOLIB_IRQCHIP
1121         help
1122           Say Y here to support Intel MID GPIO.
1123
1124 config GPIO_MERRIFIELD
1125         tristate "Intel Merrifield GPIO support"
1126         depends on X86_INTEL_MID
1127         select GPIOLIB_IRQCHIP
1128         help
1129           Say Y here to support Intel Merrifield GPIO.
1130
1131 config GPIO_ML_IOH
1132         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1133         depends on X86 || COMPILE_TEST
1134         select GENERIC_IRQ_CHIP
1135         help
1136           ML7213 is companion chip for Intel Atom E6xx series.
1137           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1138           Hub) which is for IVI(In-Vehicle Infotainment) use.
1139           This driver can access the IOH's GPIO device.
1140
1141 config GPIO_PCH
1142         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1143         depends on X86_32 || MIPS || COMPILE_TEST
1144         select GENERIC_IRQ_CHIP
1145         help
1146           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1147           which is an IOH(Input/Output Hub) for x86 embedded processor.
1148           This driver can access PCH GPIO device.
1149
1150           This driver also can be used for LAPIS Semiconductor IOH(Input/
1151           Output Hub), ML7223 and ML7831.
1152           ML7223 IOH is for MP(Media Phone) use.
1153           ML7831 IOH is for general purpose use.
1154           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1155           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1156
1157 config GPIO_RDC321X
1158         tristate "RDC R-321x GPIO support"
1159         select MFD_CORE
1160         select MFD_RDC321X
1161         help
1162           Support for the RDC R321x SoC GPIOs over southbridge
1163           PCI configuration space.
1164
1165 config GPIO_SODAVILLE
1166         bool "Intel Sodaville GPIO support"
1167         depends on X86 && OF
1168         select GPIO_GENERIC
1169         select GENERIC_IRQ_CHIP
1170         help
1171           Say Y here to support Intel Sodaville GPIO.
1172
1173 endmenu
1174
1175 menu "SPI GPIO expanders"
1176         depends on SPI_MASTER
1177
1178 config GPIO_74X164
1179         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1180         depends on OF_GPIO
1181         help
1182           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1183           shift registers. This driver can be used to provide access
1184           to more gpio outputs.
1185
1186 config GPIO_MAX7301
1187         tristate "Maxim MAX7301 GPIO expander"
1188         select GPIO_MAX730X
1189         help
1190           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1191
1192 config GPIO_MC33880
1193         tristate "Freescale MC33880 high-side/low-side switch"
1194         help
1195           SPI driver for Freescale MC33880 high-side/low-side switch.
1196           This provides GPIO interface supporting inputs and outputs.
1197
1198 config GPIO_PISOSR
1199         tristate "Generic parallel-in/serial-out shift register"
1200         help
1201           GPIO driver for SPI compatible parallel-in/serial-out shift
1202           registers. These are input only devices.
1203
1204 endmenu
1205
1206 menu "SPI or I2C GPIO expanders"
1207         depends on (SPI_MASTER && !I2C) || I2C
1208
1209 config GPIO_MCP23S08
1210         tristate "Microchip MCP23xxx I/O expander"
1211         depends on OF_GPIO
1212         select GPIOLIB_IRQCHIP
1213         help
1214           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1215           I/O expanders.
1216           This provides a GPIO interface supporting inputs and outputs.
1217           The I2C versions of the chips can be used as interrupt-controller.
1218
1219 endmenu
1220
1221 menu "USB GPIO expanders"
1222         depends on USB
1223
1224 config GPIO_VIPERBOARD
1225         tristate "Viperboard GPIO a & b support"
1226         depends on MFD_VIPERBOARD
1227         help
1228           Say yes here to access the GPIO signals of Nano River
1229           Technologies Viperboard. There are two GPIO chips on the
1230           board: gpioa and gpiob.
1231           See viperboard API specification and Nano
1232           River Tech's viperboard.h for detailed meaning
1233           of the module parameters.
1234
1235 endmenu
1236
1237 endif