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 config ARCH_WANT_OPTIONAL_GPIOLIB
  14         bool
  15         help
  16           Select this config option from the architecture Kconfig, if
  17           it is possible to use gpiolib on the architecture, but let the
  18           user decide whether to actually build it or not.
  19           Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
  20           not depend on GPIOs being available, but rather let the user
  21           decide whether he needs it or not.
  22
  23 config ARCH_REQUIRE_GPIOLIB
  24         bool
  25         select GPIOLIB
  26         help
  27           Platforms select gpiolib if they use this infrastructure
  28           for all their GPIOs, usually starting with ones integrated
  29           into SOC processors.
  30           Selecting this from the architecture code will cause the gpiolib
  31           code to always get built in.
  32
  33
  34 menuconfig GPIOLIB
  35         bool "GPIO Support"
  36         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  37         help
  38           This enables GPIO support through the generic GPIO library.
  39           You only need to enable this, if you also want to enable
  40           one or more of the GPIO drivers below.
  41
  42           If unsure, say N.
  43
  44 if GPIOLIB
  45
  46 config GPIO_DEVRES
  47         def_bool y
  48         depends on HAS_IOMEM
  49
  50 config OF_GPIO
  51         def_bool y
  52         depends on OF
  53
  54 config GPIO_ACPI
  55         def_bool y
  56         depends on ACPI
  57
  58 config GPIOLIB_IRQCHIP
  59         select IRQ_DOMAIN
  60         bool
  61
  62 config DEBUG_GPIO
  63         bool "Debug GPIO calls"
  64         depends on DEBUG_KERNEL
  65         help
  66           Say Y here to add some extra checks and diagnostics to GPIO calls.
  67           These checks help ensure that GPIOs have been properly initialized
  68           before they are used, and that sleeping calls are not made from
  69           non-sleeping contexts.  They can make bitbanged serial protocols
  70           slower.  The diagnostics help catch the type of setup errors
  71           that are most common when setting up new platforms or boards.
  72
  73 config GPIO_SYSFS
  74         bool "/sys/class/gpio/... (sysfs interface)"
  75         depends on SYSFS
  76         help
  77           Say Y here to add a sysfs interface for GPIOs.
  78
  79           This is mostly useful to work around omissions in a system's
  80           kernel support.  Those are common in custom and semicustom
  81           hardware assembled using standard kernels with a minimum of
  82           custom patches.  In those cases, userspace code may import
  83           a given GPIO from the kernel, if no kernel driver requested it.
  84
  85           Kernel drivers may also request that a particular GPIO be
  86           exported to userspace; this can be useful when debugging.
  87
  88 config GPIO_GENERIC
  89         tristate
  90
  91 # put drivers in the right section, in alphabetical order
  92
  93 # This symbol is selected by both I2C and SPI expanders
  94 config GPIO_MAX730X
  95         tristate
  96
  97 menu "Memory mapped GPIO drivers"
  98
  99 config GPIO_74XX_MMIO
 100         tristate "GPIO driver for 74xx-ICs with MMIO access"
 101         depends on OF_GPIO
 102         select GPIO_GENERIC
 103         help
 104           Say yes here to support GPIO functionality for 74xx-compatible ICs
 105           with MMIO access. Compatible models include:
 106             1 bit:      741G125 (Input), 741G74 (Output)
 107             2 bits:     742G125 (Input), 7474 (Output)
 108             4 bits:     74125 (Input), 74175 (Output)
 109             6 bits:     74365 (Input), 74174 (Output)
 110             8 bits:     74244 (Input), 74273 (Output)
 111             16 bits:    741624 (Input), 7416374 (Output)
 112
 113 config GPIO_ALTERA
 114         tristate "Altera GPIO"
 115         depends on OF_GPIO
 116         select GPIOLIB_IRQCHIP
 117         help
 118           Say Y or M here to build support for the Altera PIO device.
 119
 120           If driver is built as a module it will be called gpio-altera.
 121
 122 config GPIO_AMDPT
 123         tristate "AMD Promontory GPIO support"
 124         depends on ACPI
 125         help
 126           driver for GPIO functionality on Promontory IOHub
 127           Require ACPI ASL code to enumerate as a platform device.
 128
 129 config GPIO_ATH79
 130         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 131         default y if ATH79
 132         depends on ATH79 || COMPILE_TEST
 133         select GPIO_GENERIC
 134         select GPIOLIB_IRQCHIP
 135         help
 136           Select this option to enable GPIO driver for
 137           Atheros AR71XX/AR724X/AR913X SoC devices.
 138
 139 config GPIO_BCM_KONA
 140         bool "Broadcom Kona GPIO"
 141         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 142         help
 143           Turn on GPIO support for Broadcom "Kona" chips.
 144
 145 config GPIO_BRCMSTB
 146         tristate "BRCMSTB GPIO support"
 147         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 148         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 149         select GPIO_GENERIC
 150         select GPIOLIB_IRQCHIP
 151         help
 152           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 153
 154 config GPIO_CLPS711X
 155         tristate "CLPS711X GPIO support"
 156         depends on ARCH_CLPS711X || COMPILE_TEST
 157         select GPIO_GENERIC
 158         help
 159           Say yes here to support GPIO on CLPS711X SoCs.
 160
 161 config GPIO_DAVINCI
 162         bool "TI Davinci/Keystone GPIO support"
 163         default y if ARCH_DAVINCI
 164         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 165         help
 166           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 167
 168 config GPIO_DWAPB
 169         tristate "Synopsys DesignWare APB GPIO driver"
 170         select GPIO_GENERIC
 171         select GENERIC_IRQ_CHIP
 172         help
 173           Say Y or M here to build support for the Synopsys DesignWare APB
 174           GPIO block.
 175
 176 config GPIO_EM
 177         tristate "Emma Mobile GPIO"
 178         depends on ARM && OF_GPIO
 179         help
 180           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 181
 182 config GPIO_EP93XX
 183         def_bool y
 184         depends on ARCH_EP93XX
 185         select GPIO_GENERIC
 186
 187 config GPIO_ETRAXFS
 188         bool "Axis ETRAX FS General I/O"
 189         depends on CRIS || COMPILE_TEST
 190         depends on OF
 191         select GPIO_GENERIC
 192         select GPIOLIB_IRQCHIP
 193         help
 194           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 195
 196 config GPIO_GE_FPGA
 197         bool "GE FPGA based GPIO"
 198         depends on GE_FPGA
 199         select GPIO_GENERIC
 200         help
 201           Support for common GPIO functionality provided on some GE Single Board
 202           Computers.
 203
 204           This driver provides basic support (configure as input or output, read
 205           and write pin state) for GPIO implemented in a number of GE single
 206           board computers.
 207
 208 config GPIO_GENERIC_PLATFORM
 209         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 210         select GPIO_GENERIC
 211         help
 212           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 213
 214 config GPIO_GRGPIO
 215         tristate "Aeroflex Gaisler GRGPIO support"
 216         depends on OF
 217         select GPIO_GENERIC
 218         select IRQ_DOMAIN
 219         help
 220           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 221           VHDL IP core library.
 222
 223 config GPIO_ICH
 224         tristate "Intel ICH GPIO"
 225         depends on PCI && X86
 226         select MFD_CORE
 227         select LPC_ICH
 228         help
 229           Say yes here to support the GPIO functionality of a number of Intel
 230           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 231           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 232           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 233
 234           If unsure, say N.
 235
 236 config GPIO_IOP
 237         tristate "Intel IOP GPIO"
 238         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 239         help
 240           Say yes here to support the GPIO functionality of a number of Intel
 241           IOP32X or IOP33X.
 242
 243           If unsure, say N.
 244
 245 config GPIO_LOONGSON
 246         bool "Loongson-2/3 GPIO support"
 247         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 248         help
 249           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 250
 251 config GPIO_LPC18XX
 252         bool "NXP LPC18XX/43XX GPIO support"
 253         default y if ARCH_LPC18XX
 254         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 255         help
 256           Select this option to enable GPIO driver for
 257           NXP LPC18XX/43XX devices.
 258
 259 config GPIO_LYNXPOINT
 260         tristate "Intel Lynxpoint GPIO support"
 261         depends on ACPI && X86
 262         select GPIOLIB_IRQCHIP
 263         help
 264           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 265           Requires ACPI device enumeration code to set up a platform device.
 266
 267 config GPIO_MB86S7X
 268         bool "GPIO support for Fujitsu MB86S7x Platforms"
 269         depends on ARCH_MB86S7X || COMPILE_TEST
 270         help
 271           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 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_MOXART
 282         bool "MOXART GPIO support"
 283         depends on ARCH_MOXART || COMPILE_TEST
 284         select GPIO_GENERIC
 285         help
 286           Select this option to enable GPIO driver for
 287           MOXA ART SoC devices.
 288
 289 config GPIO_MPC5200
 290         def_bool y
 291         depends on PPC_MPC52xx
 292
 293 config GPIO_MPC8XXX
 294         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 295         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 296                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 297                    COMPILE_TEST
 298         select GPIO_GENERIC
 299         help
 300           Say Y here if you're going to use hardware that connects to the
 301           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 302
 303 config GPIO_MVEBU
 304         def_bool y
 305         depends on PLAT_ORION
 306         depends on OF
 307         select GENERIC_IRQ_CHIP
 308
 309 config GPIO_MXC
 310         def_bool y
 311         depends on ARCH_MXC
 312         select GPIO_GENERIC
 313         select GENERIC_IRQ_CHIP
 314
 315 config GPIO_MXS
 316         def_bool y
 317         depends on ARCH_MXS
 318         select GPIO_GENERIC
 319         select GENERIC_IRQ_CHIP
 320
 321 config GPIO_OCTEON
 322         tristate "Cavium OCTEON GPIO"
 323         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 324         default y
 325         help
 326           Say yes here to support the on-chip GPIO lines on the OCTEON
 327           family of SOCs.
 328
 329 config GPIO_OMAP
 330         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 331         default y if ARCH_OMAP
 332         depends on ARM
 333         select GENERIC_IRQ_CHIP
 334         select GPIOLIB_IRQCHIP
 335         help
 336           Say yes here to enable GPIO support for TI OMAP SoCs.
 337
 338 config GPIO_PL061
 339         bool "PrimeCell PL061 GPIO support"
 340         depends on ARM_AMBA
 341         select IRQ_DOMAIN
 342         select GPIOLIB_IRQCHIP
 343         help
 344           Say yes here to support the PrimeCell PL061 GPIO device
 345
 346 config GPIO_PXA
 347         bool "PXA GPIO support"
 348         depends on ARCH_PXA || ARCH_MMP
 349         help
 350           Say yes here to support the PXA GPIO device
 351
 352 config GPIO_RCAR
 353         tristate "Renesas R-Car GPIO"
 354         depends on ARCH_RENESAS || COMPILE_TEST
 355         select GPIOLIB_IRQCHIP
 356         help
 357           Say yes here to support GPIO on Renesas R-Car SoCs.
 358
 359 config GPIO_SPEAR_SPICS
 360         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 361         depends on PLAT_SPEAR
 362         select GENERIC_IRQ_CHIP
 363         help
 364           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 365
 366 config GPIO_STA2X11
 367         bool "STA2x11/ConneXt GPIO support"
 368         depends on MFD_STA2X11
 369         select GENERIC_IRQ_CHIP
 370         help
 371           Say yes here to support the STA2x11/ConneXt GPIO device.
 372           The GPIO module has 128 GPIO pins with alternate functions.
 373
 374 config GPIO_STP_XWAY
 375         bool "XWAY STP GPIOs"
 376         depends on SOC_XWAY
 377         help
 378           This enables support for the Serial To Parallel (STP) unit found on
 379           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 380           that can be up to 24 bit. This peripheral is aimed at driving leds.
 381           Some of the gpios/leds can be auto updated by the soc with dsl and
 382           phy status.
 383
 384 config GPIO_SYSCON
 385         tristate "GPIO based on SYSCON"
 386         depends on MFD_SYSCON && OF
 387         help
 388           Say yes here to support GPIO functionality though SYSCON driver.
 389
 390 config GPIO_TB10X
 391         bool
 392         select GENERIC_IRQ_CHIP
 393         select OF_GPIO
 394
 395 config GPIO_TS4800
 396         tristate "TS-4800 DIO blocks and compatibles"
 397         depends on OF_GPIO
 398         select GPIO_GENERIC
 399         help
 400           This driver support TS-4800 FPGA GPIO controllers.
 401
 402 config GPIO_TZ1090
 403         bool "Toumaz Xenif TZ1090 GPIO support"
 404         depends on SOC_TZ1090
 405         select GENERIC_IRQ_CHIP
 406         default y
 407         help
 408           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 409
 410 config GPIO_TZ1090_PDC
 411         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 412         depends on SOC_TZ1090
 413         default y
 414         help
 415           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 416
 417 config GPIO_VF610
 418         def_bool y
 419         depends on ARCH_MXC && SOC_VF610
 420         select GPIOLIB_IRQCHIP
 421         help
 422           Say yes here to support Vybrid vf610 GPIOs.
 423
 424 config GPIO_VR41XX
 425         tristate "NEC VR4100 series General-purpose I/O Uint support"
 426         depends on CPU_VR41XX
 427         help
 428           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 429
 430 config GPIO_VX855
 431         tristate "VIA VX855/VX875 GPIO"
 432         depends on PCI
 433         select MFD_CORE
 434         select MFD_VX855
 435         help
 436           Support access to the VX855/VX875 GPIO lines through the gpio library.
 437
 438           This driver provides common support for accessing the device,
 439           additional drivers must be enabled in order to use the
 440           functionality of the device.
 441
 442 config GPIO_XGENE
 443         bool "APM X-Gene GPIO controller support"
 444         depends on ARM64 && OF_GPIO
 445         help
 446           This driver is to support the GPIO block within the APM X-Gene SoC
 447           platform's generic flash controller. The GPIO pins are muxed with
 448           the generic flash controller's address and data pins. Say yes
 449           here to enable the GFC GPIO functionality.
 450
 451 config GPIO_XGENE_SB
 452         tristate "APM X-Gene GPIO standby controller support"
 453         depends on ARCH_XGENE && OF_GPIO
 454         select GPIO_GENERIC
 455         help
 456           This driver supports the GPIO block within the APM X-Gene
 457           Standby Domain. Say yes here to enable the GPIO functionality.
 458
 459 config GPIO_XILINX
 460         tristate "Xilinx GPIO support"
 461         depends on OF_GPIO
 462         help
 463           Say yes here to support the Xilinx FPGA GPIO device
 464
 465 config GPIO_XLP
 466         tristate "Netlogic XLP GPIO support"
 467         depends on CPU_XLP && OF_GPIO
 468         select GPIOLIB_IRQCHIP
 469         help
 470           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 471           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 472           XLP9XX and XLP5XX.
 473
 474           If unsure, say N.
 475
 476 config GPIO_XTENSA
 477         bool "Xtensa GPIO32 support"
 478         depends on XTENSA
 479         depends on HAVE_XTENSA_GPIO32
 480         depends on !SMP
 481         help
 482           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 483           and EXPSTATE (output) ports
 484
 485 config GPIO_ZEVIO
 486         bool "LSI ZEVIO SoC memory mapped GPIOs"
 487         depends on ARM && OF_GPIO
 488         help
 489           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 490
 491 config GPIO_ZYNQ
 492         tristate "Xilinx Zynq GPIO support"
 493         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 494         select GPIOLIB_IRQCHIP
 495         help
 496           Say yes here to support Xilinx Zynq GPIO controller.
 497
 498 config GPIO_ZX
 499         bool "ZTE ZX GPIO support"
 500         select GPIOLIB_IRQCHIP
 501         help
 502           Say yes here to support the GPIO device on ZTE ZX SoCs.
 503
 504 endmenu
 505
 506 menu "Port-mapped I/O GPIO drivers"
 507         depends on X86 # Unconditional I/O space access
 508
 509 config GPIO_104_DIO_48E
 510         tristate "ACCES 104-DIO-48E GPIO support"
 511         select GPIOLIB_IRQCHIP
 512         help
 513           Enables GPIO support for the ACCES 104-DIO-48E family. The base port
 514           address for the device may be configured via the dio_48e_base module
 515           parameter. The interrupt line number for the device may be configured
 516           via the dio_48e_irq module parameter.
 517
 518 config GPIO_104_IDIO_16
 519         tristate "ACCES 104-IDIO-16 GPIO support"
 520         select GPIOLIB_IRQCHIP
 521         help
 522           Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
 523           address for the device may be set via the idio_16_base module
 524           parameter. The interrupt line number for the device may be set via the
 525           idio_16_irq module parameter.
 526
 527 config GPIO_104_IDI_48
 528         tristate "ACCES 104-IDI-48 GPIO support"
 529         select GPIOLIB_IRQCHIP
 530         help
 531           Enables GPIO support for the ACCES 104-IDI-48 family. The base port
 532           address for the device may be configured via the idi_48_base module
 533           parameter. The interrupt line number for the device may be configured
 534           via the idi_48_irq module parameter.
 535
 536 config GPIO_F7188X
 537         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 538         help
 539           This option enables support for GPIOs found on Fintek Super-I/O
 540           chips F71869, F71869A, F71882FG, F71889F and F81866.
 541
 542           To compile this driver as a module, choose M here: the module will
 543           be called f7188x-gpio.
 544
 545 config GPIO_IT87
 546         tristate "IT87xx GPIO support"
 547         help
 548           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 549
 550           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 551           supports the IT8761E Super I/O chip as well.
 552
 553           To compile this driver as a module, choose M here: the module will
 554           be called gpio_it87
 555
 556 config GPIO_SCH
 557         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 558         depends on PCI
 559         select MFD_CORE
 560         select LPC_SCH
 561         help
 562           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 563           Intel Tunnel Creek processor, Intel Centerton processor or
 564           Intel Quark X1000 SoC.
 565
 566           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 567           powered by the core power rail and are turned off during sleep
 568           modes (S3 and higher). The remaining four GPIOs are powered by
 569           the Intel SCH suspend power supply. These GPIOs remain
 570           active during S3. The suspend powered GPIOs can be used to wake the
 571           system from the Suspend-to-RAM state.
 572
 573           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 574           core power rail and 9 from suspend power supply.
 575
 576           The Intel Centerton processor has a total of 30 GPIO pins.
 577           Twenty-one are powered by the core power rail and 9 from the
 578           suspend power supply.
 579
 580           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 581           power well and 6 from the suspend power well.
 582
 583 config GPIO_SCH311X
 584         tristate "SMSC SCH311x SuperI/O GPIO"
 585         help
 586           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 587           SCH3116 "Super I/O" chipsets.
 588
 589           To compile this driver as a module, choose M here: the module will
 590           be called gpio-sch311x.
 591
 592 config GPIO_TS5500
 593         tristate "TS-5500 DIO blocks and compatibles"
 594         depends on TS5500 || COMPILE_TEST
 595         help
 596           This driver supports Digital I/O exposed by pin blocks found on some
 597           Technologic Systems platforms. It includes, but is not limited to, 3
 598           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 599           LCD port.
 600
 601 config GPIO_WS16C48
 602         tristate "WinSystems WS16C48 GPIO support"
 603         select GPIOLIB_IRQCHIP
 604         help
 605           Enables GPIO support for the WinSystems WS16C48. The base port address
 606           for the device may be configured via the ws16c48_base module
 607           parameter. The interrupt line number for the device may be configured
 608           via the ws16c48_irq module parameter.
 609
 610 endmenu
 611
 612 menu "I2C GPIO expanders"
 613         depends on I2C
 614
 615 config GPIO_ADP5588
 616         tristate "ADP5588 I2C GPIO expander"
 617         help
 618           This option enables support for 18 GPIOs found
 619           on Analog Devices ADP5588 GPIO Expanders.
 620
 621 config GPIO_ADP5588_IRQ
 622         bool "Interrupt controller support for ADP5588"
 623         depends on GPIO_ADP5588=y
 624         help
 625           Say yes here to enable the adp5588 to be used as an interrupt
 626           controller. It requires the driver to be built in the kernel.
 627
 628 config GPIO_ADNP
 629         tristate "Avionic Design N-bit GPIO expander"
 630         depends on OF_GPIO
 631         select GPIOLIB_IRQCHIP
 632         help
 633           This option enables support for N GPIOs found on Avionic Design
 634           I2C GPIO expanders. The register space will be extended by powers
 635           of two, so the controller will need to accommodate for that. For
 636           example: if a controller provides 48 pins, 6 registers will be
 637           enough to represent all pins, but the driver will assume a
 638           register layout for 64 pins (8 registers).
 639
 640 config GPIO_MAX7300
 641         tristate "Maxim MAX7300 GPIO expander"
 642         select GPIO_MAX730X
 643         help
 644           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 645
 646 config GPIO_MAX732X
 647         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 648         help
 649           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 650           Port Expanders. Each IO port on these chips has a fixed role of
 651           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 652           Input and Output (designed by 'P'). The combinations are listed
 653           below:
 654
 655           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 656                         max7322 (4I4O), max7323 (4P4O)
 657
 658           16 bits:      max7324 (8I8O), max7325 (8P8O),
 659                         max7326 (4I12O), max7327 (4P12O)
 660
 661           Board setup code must specify the model to use, and the start
 662           number for these GPIOs.
 663
 664 config GPIO_MAX732X_IRQ
 665         bool "Interrupt controller support for MAX732x"
 666         depends on GPIO_MAX732X=y
 667         select GPIOLIB_IRQCHIP
 668         help
 669           Say yes here to enable the max732x to be used as an interrupt
 670           controller. It requires the driver to be built in the kernel.
 671
 672 config GPIO_MC9S08DZ60
 673         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 674         depends on I2C=y && MACH_MX35_3DS
 675         help
 676           Select this to enable the MC9S08DZ60 GPIO driver
 677
 678 config GPIO_PCA953X
 679         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 680         help
 681           Say yes here to provide access to several register-oriented
 682           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 683           models include:
 684
 685           4 bits:       pca9536, pca9537
 686
 687           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 688                         pca9556, pca9557, pca9574, tca6408, xra1202
 689
 690           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 691                         tca6416
 692
 693           24 bits:      tca6424
 694
 695           40 bits:      pca9505, pca9698
 696
 697 config GPIO_PCA953X_IRQ
 698         bool "Interrupt controller support for PCA953x"
 699         depends on GPIO_PCA953X=y
 700         select GPIOLIB_IRQCHIP
 701         help
 702           Say yes here to enable the pca953x to be used as an interrupt
 703           controller. It requires the driver to be built in the kernel.
 704
 705 config GPIO_PCF857X
 706         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 707         select GPIOLIB_IRQCHIP
 708         select IRQ_DOMAIN
 709         help
 710           Say yes here to provide access to most "quasi-bidirectional" I2C
 711           GPIO expanders used for additional digital outputs or inputs.
 712           Most of these parts are from NXP, though TI is a second source for
 713           some of them.  Compatible models include:
 714
 715           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 716                     pca9670, pca9672, pca9674, pca9674a,
 717                     max7328, max7329
 718
 719           16 bits:  pcf8575, pcf8575c, pca8575,
 720                     pca9671, pca9673, pca9675
 721
 722           Your board setup code will need to declare the expanders in
 723           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 724           can then be used from drivers and other kernel code, just like
 725           other GPIOs, but only accessible from task contexts.
 726
 727           This driver provides an in-kernel interface to those GPIOs using
 728           platform-neutral GPIO calls.
 729
 730 config GPIO_SX150X
 731         bool "Semtech SX150x I2C GPIO expander"
 732         depends on I2C=y
 733         select GPIOLIB_IRQCHIP
 734         default n
 735         help
 736           Say yes here to provide support for Semtech SX150-series I2C
 737           GPIO expanders. Compatible models include:
 738
 739           8 bits:  sx1508q
 740           16 bits: sx1509q
 741
 742 config GPIO_TPIC2810
 743         tristate "TPIC2810 8-Bit I2C GPO expander"
 744         help
 745           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 746
 747           To compile this driver as a module, choose M here: the module will
 748           be called gpio-tpic2810.
 749
 750 endmenu
 751
 752 menu "MFD GPIO expanders"
 753
 754 config GPIO_ADP5520
 755         tristate "GPIO Support for ADP5520 PMIC"
 756         depends on PMIC_ADP5520
 757         help
 758           This option enables support for on-chip GPIO found
 759           on Analog Devices ADP5520 PMICs.
 760
 761 config GPIO_ARIZONA
 762         tristate "Wolfson Microelectronics Arizona class devices"
 763         depends on MFD_ARIZONA
 764         help
 765           Support for GPIOs on Wolfson Arizona class devices.
 766
 767 config GPIO_CRYSTAL_COVE
 768         tristate "GPIO support for Crystal Cove PMIC"
 769         depends on INTEL_SOC_PMIC
 770         select GPIOLIB_IRQCHIP
 771         help
 772           Support for GPIO pins on Crystal Cove PMIC.
 773
 774           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 775           inside.
 776
 777           This driver can also be built as a module. If so, the module will be
 778           called gpio-crystalcove.
 779
 780 config GPIO_CS5535
 781         tristate "AMD CS5535/CS5536 GPIO support"
 782         depends on MFD_CS5535
 783         help
 784           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 785           can be used for quite a number of things.  The CS5535/6 is found on
 786           AMD Geode and Lemote Yeeloong devices.
 787
 788           If unsure, say N.
 789
 790 config GPIO_DA9052
 791         tristate "Dialog DA9052 GPIO"
 792         depends on PMIC_DA9052
 793         help
 794           Say yes here to enable the GPIO driver for the DA9052 chip.
 795
 796 config GPIO_DA9055
 797         tristate "Dialog Semiconductor DA9055 GPIO"
 798         depends on MFD_DA9055
 799         help
 800           Say yes here to enable the GPIO driver for the DA9055 chip.
 801
 802           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 803           be controller by this driver.
 804
 805           If driver is built as a module it will be called gpio-da9055.
 806
 807 config GPIO_DLN2
 808         tristate "Diolan DLN2 GPIO support"
 809         depends on MFD_DLN2
 810         select GPIOLIB_IRQCHIP
 811
 812         help
 813           Select this option to enable GPIO driver for the Diolan DLN2
 814           board.
 815
 816           This driver can also be built as a module. If so, the module
 817           will be called gpio-dln2.
 818
 819 config GPIO_JANZ_TTL
 820         tristate "Janz VMOD-TTL Digital IO Module"
 821         depends on MFD_JANZ_CMODIO
 822         help
 823           This enables support for the Janz VMOD-TTL Digital IO module.
 824           This driver provides support for driving the pins in output
 825           mode only. Input mode is not supported.
 826
 827 config GPIO_KEMPLD
 828         tristate "Kontron ETX / COMexpress GPIO"
 829         depends on MFD_KEMPLD
 830         help
 831           This enables support for the PLD GPIO interface on some Kontron ETX
 832           and COMexpress (ETXexpress) modules.
 833
 834           This driver can also be built as a module. If so, the module will be
 835           called gpio-kempld.
 836
 837 config GPIO_LP3943
 838         tristate "TI/National Semiconductor LP3943 GPIO expander"
 839         depends on MFD_LP3943
 840         help
 841           GPIO driver for LP3943 MFD.
 842           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 843           Open drain outputs are required for this usage.
 844
 845 config GPIO_MSIC
 846         bool "Intel MSIC mixed signal gpio support"
 847         depends on MFD_INTEL_MSIC
 848         help
 849           Enable support for GPIO on intel MSIC controllers found in
 850           intel MID devices
 851
 852 config GPIO_PALMAS
 853         bool "TI PALMAS series PMICs GPIO"
 854         depends on MFD_PALMAS
 855         help
 856           Select this option to enable GPIO driver for the TI PALMAS
 857           series chip family.
 858
 859 config GPIO_RC5T583
 860         bool "RICOH RC5T583 GPIO"
 861         depends on MFD_RC5T583
 862         help
 863           Select this option to enable GPIO driver for the Ricoh RC5T583
 864           chip family.
 865           This driver provides the support for driving/reading the gpio pins
 866           of RC5T583 device through standard gpio library.
 867
 868 config GPIO_STMPE
 869         bool "STMPE GPIOs"
 870         depends on MFD_STMPE
 871         depends on OF_GPIO
 872         select GPIOLIB_IRQCHIP
 873         help
 874           This enables support for the GPIOs found on the STMPE I/O
 875           Expanders.
 876
 877 config GPIO_TC3589X
 878         bool "TC3589X GPIOs"
 879         depends on MFD_TC3589X
 880         depends on OF_GPIO
 881         select GPIOLIB_IRQCHIP
 882         help
 883           This enables support for the GPIOs found on the TC3589X
 884           I/O Expander.
 885
 886 config GPIO_TIMBERDALE
 887         bool "Support for timberdale GPIO IP"
 888         depends on MFD_TIMBERDALE
 889         ---help---
 890         Add support for the GPIO IP in the timberdale FPGA.
 891
 892 config GPIO_TPS65218
 893         tristate "TPS65218 GPIO"
 894         depends on MFD_TPS65218
 895         help
 896           Select this option to enable GPIO driver for the TPS65218
 897           chip family.
 898
 899 config GPIO_TPS6586X
 900         bool "TPS6586X GPIO"
 901         depends on MFD_TPS6586X
 902         help
 903           Select this option to enable GPIO driver for the TPS6586X
 904           chip family.
 905
 906 config GPIO_TPS65910
 907         bool "TPS65910 GPIO"
 908         depends on MFD_TPS65910
 909         help
 910           Select this option to enable GPIO driver for the TPS65910
 911           chip family.
 912
 913 config GPIO_TPS65912
 914         tristate "TI TPS65912 GPIO"
 915         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 916         help
 917           This driver supports TPS65912 gpio chip
 918
 919 config GPIO_TWL4030
 920         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 921         depends on TWL4030_CORE
 922         help
 923           Say yes here to access the GPIO signals of various multi-function
 924           power management chips from Texas Instruments.
 925
 926 config GPIO_TWL6040
 927         tristate "TWL6040 GPO"
 928         depends on TWL6040_CORE
 929         help
 930           Say yes here to access the GPO signals of twl6040
 931           audio chip from Texas Instruments.
 932
 933 config GPIO_UCB1400
 934         tristate "Philips UCB1400 GPIO"
 935         depends on UCB1400_CORE
 936         help
 937           This enables support for the Philips UCB1400 GPIO pins.
 938           The UCB1400 is an AC97 audio codec.
 939
 940 config GPIO_WM831X
 941         tristate "WM831x GPIOs"
 942         depends on MFD_WM831X
 943         help
 944           Say yes here to access the GPIO signals of WM831x power management
 945           chips from Wolfson Microelectronics.
 946
 947 config GPIO_WM8350
 948         tristate "WM8350 GPIOs"
 949         depends on MFD_WM8350
 950         help
 951           Say yes here to access the GPIO signals of WM8350 power management
 952           chips from Wolfson Microelectronics.
 953
 954 config GPIO_WM8994
 955         tristate "WM8994 GPIOs"
 956         depends on MFD_WM8994
 957         help
 958           Say yes here to access the GPIO signals of WM8994 audio hub
 959           CODECs from Wolfson Microelectronics.
 960
 961 endmenu
 962
 963 menu "PCI GPIO expanders"
 964         depends on PCI
 965
 966 config GPIO_AMD8111
 967         tristate "AMD 8111 GPIO driver"
 968         help
 969           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 970
 971           Note, that usually system firmware/ACPI handles GPIO pins on their
 972           own and users might easily break their systems with uncarefull usage
 973           of this driver!
 974
 975           If unsure, say N
 976
 977 config GPIO_BT8XX
 978         tristate "BT8XX GPIO abuser"
 979         depends on VIDEO_BT848=n
 980         help
 981           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 982           as a cheap PCI GPIO card.
 983
 984           This chip can be found on Miro, Hauppauge and STB TV-cards.
 985
 986           The card needs to be physically altered for using it as a
 987           GPIO card. For more information on how to build a GPIO card
 988           from a BT8xx TV card, see the documentation file at
 989           Documentation/bt8xxgpio.txt
 990
 991           If unsure, say N.
 992
 993 config GPIO_INTEL_MID
 994         bool "Intel Mid GPIO support"
 995         depends on X86
 996         select GPIOLIB_IRQCHIP
 997         help
 998           Say Y here to support Intel Mid GPIO.
 999
1000 config GPIO_ML_IOH
1001         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1002         select GENERIC_IRQ_CHIP
1003         help
1004           ML7213 is companion chip for Intel Atom E6xx series.
1005           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1006           Hub) which is for IVI(In-Vehicle Infotainment) use.
1007           This driver can access the IOH's GPIO device.
1008
1009 config GPIO_PCH
1010         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1011         depends on X86_32 || MIPS || COMPILE_TEST
1012         select GENERIC_IRQ_CHIP
1013         help
1014           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1015           which is an IOH(Input/Output Hub) for x86 embedded processor.
1016           This driver can access PCH GPIO device.
1017
1018           This driver also can be used for LAPIS Semiconductor IOH(Input/
1019           Output Hub), ML7223 and ML7831.
1020           ML7223 IOH is for MP(Media Phone) use.
1021           ML7831 IOH is for general purpose use.
1022           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1023           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1024
1025 config GPIO_RDC321X
1026         tristate "RDC R-321x GPIO support"
1027         select MFD_CORE
1028         select MFD_RDC321X
1029         help
1030           Support for the RDC R321x SoC GPIOs over southbridge
1031           PCI configuration space.
1032
1033 config GPIO_SODAVILLE
1034         bool "Intel Sodaville GPIO support"
1035         depends on X86 && OF
1036         select GPIO_GENERIC
1037         select GENERIC_IRQ_CHIP
1038         help
1039           Say Y here to support Intel Sodaville GPIO.
1040
1041 endmenu
1042
1043 menu "SPI GPIO expanders"
1044         depends on SPI_MASTER
1045
1046 config GPIO_74X164
1047         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1048         depends on OF
1049         help
1050           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1051           shift registers. This driver can be used to provide access
1052           to more gpio outputs.
1053
1054 config GPIO_MAX7301
1055         tristate "Maxim MAX7301 GPIO expander"
1056         select GPIO_MAX730X
1057         help
1058           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1059
1060 config GPIO_MC33880
1061         tristate "Freescale MC33880 high-side/low-side switch"
1062         help
1063           SPI driver for Freescale MC33880 high-side/low-side switch.
1064           This provides GPIO interface supporting inputs and outputs.
1065
1066 config GPIO_PISOSR
1067         tristate "Generic parallel-in/serial-out shift register"
1068         help
1069           GPIO driver for SPI compatible parallel-in/serial-out shift
1070           registers. These are input only devices.
1071
1072 endmenu
1073
1074 menu "SPI or I2C GPIO expanders"
1075         depends on (SPI_MASTER && !I2C) || I2C
1076
1077 config GPIO_MCP23S08
1078         tristate "Microchip MCP23xxx I/O expander"
1079         help
1080           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1081           I/O expanders.
1082           This provides a GPIO interface supporting inputs and outputs.
1083           The I2C versions of the chips can be used as interrupt-controller.
1084
1085 endmenu
1086
1087 menu "USB GPIO expanders"
1088         depends on USB
1089
1090 config GPIO_VIPERBOARD
1091         tristate "Viperboard GPIO a & b support"
1092         depends on MFD_VIPERBOARD
1093         help
1094           Say yes here to access the GPIO signals of Nano River
1095           Technologies Viperboard. There are two GPIO chips on the
1096           board: gpioa and gpiob.
1097           See viperboard API specification and Nano
1098           River Tech's viperboard.h for detailed meaning
1099           of the module parameters.
1100
1101 endmenu
1102
1103 endif