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 DEBUG_GPIO
  59         bool "Debug GPIO calls"
  60         depends on DEBUG_KERNEL
  61         help
  62           Say Y here to add some extra checks and diagnostics to GPIO calls.
  63           These checks help ensure that GPIOs have been properly initialized
  64           before they are used, and that sleeping calls are not made from
  65           non-sleeping contexts.  They can make bitbanged serial protocols
  66           slower.  The diagnostics help catch the type of setup errors
  67           that are most common when setting up new platforms or boards.
  68
  69 config GPIO_SYSFS
  70         bool "/sys/class/gpio/... (sysfs interface)"
  71         depends on SYSFS
  72         help
  73           Say Y here to add a sysfs interface for GPIOs.
  74
  75           This is mostly useful to work around omissions in a system's
  76           kernel support.  Those are common in custom and semicustom
  77           hardware assembled using standard kernels with a minimum of
  78           custom patches.  In those cases, userspace code may import
  79           a given GPIO from the kernel, if no kernel driver requested it.
  80
  81           Kernel drivers may also request that a particular GPIO be
  82           exported to userspace; this can be useful when debugging.
  83
  84 config GPIO_GENERIC
  85         tristate
  86
  87 # put drivers in the right section, in alphabetical order
  88
  89 config GPIO_DA9052
  90         tristate "Dialog DA9052 GPIO"
  91         depends on PMIC_DA9052
  92         help
  93           Say yes here to enable the GPIO driver for the DA9052 chip.
  94
  95 config GPIO_DA9055
  96         tristate "Dialog Semiconductor DA9055 GPIO"
  97         depends on MFD_DA9055
  98         help
  99           Say yes here to enable the GPIO driver for the DA9055 chip.
 100
 101           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 102           be controller by this driver.
 103
 104           If driver is built as a module it will be called gpio-da9055.
 105
 106 config GPIO_MAX730X
 107         tristate
 108
 109 comment "Memory mapped GPIO drivers:"
 110
 111 config GPIO_CLPS711X
 112         tristate "CLPS711X GPIO support"
 113         depends on ARCH_CLPS711X || COMPILE_TEST
 114         select GPIO_GENERIC
 115         help
 116           Say yes here to support GPIO on CLPS711X SoCs.
 117
 118 config GPIO_DAVINCI
 119         bool "TI Davinci/Keystone GPIO support"
 120         default y if ARCH_DAVINCI
 121         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 122         help
 123           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 124
 125 config GPIO_GENERIC_PLATFORM
 126         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 127         select GPIO_GENERIC
 128         help
 129           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 130
 131 config GPIO_IT8761E
 132         tristate "IT8761E GPIO support"
 133         depends on X86  # unconditional access to IO space.
 134         help
 135           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 136
 137 config GPIO_EM
 138         tristate "Emma Mobile GPIO"
 139         depends on ARM && OF_GPIO
 140         help
 141           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 142
 143 config GPIO_EP93XX
 144         def_bool y
 145         depends on ARCH_EP93XX
 146         select GPIO_GENERIC
 147
 148 config GPIO_MM_LANTIQ
 149         bool "Lantiq Memory mapped GPIOs"
 150         depends on LANTIQ && SOC_XWAY
 151         help
 152           This enables support for memory mapped GPIOs on the External Bus Unit
 153           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 154           created by attaching a 16bit latch to the bus.
 155
 156 config GPIO_F7188X
 157         tristate "F71882FG and F71889F GPIO support"
 158         depends on X86
 159         help
 160           This option enables support for GPIOs found on Fintek Super-I/O
 161           chips F71882FG and F71889F.
 162
 163           To compile this driver as a module, choose M here: the module will
 164           be called f7188x-gpio.
 165
 166 config GPIO_MOXART
 167         bool "MOXART GPIO support"
 168         depends on ARCH_MOXART
 169         help
 170           Select this option to enable GPIO driver for
 171           MOXA ART SoC devices.
 172
 173 config GPIO_MPC5200
 174         def_bool y
 175         depends on PPC_MPC52xx
 176
 177 config GPIO_MPC8XXX
 178         bool "MPC512x/MPC8xxx GPIO support"
 179         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 180                    FSL_SOC_BOOKE || PPC_86xx
 181         help
 182           Say Y here if you're going to use hardware that connects to the
 183           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 184
 185 config GPIO_MSM_V1
 186         tristate "Qualcomm MSM GPIO v1"
 187         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 188         help
 189           Say yes here to support the GPIO interface on ARM v6 based
 190           Qualcomm MSM chips.  Most of the pins on the MSM can be
 191           selected for GPIO, and are controlled by this driver.
 192
 193 config GPIO_MSM_V2
 194         tristate "Qualcomm MSM GPIO v2"
 195         depends on GPIOLIB && OF && ARCH_MSM
 196         help
 197           Say yes here to support the GPIO interface on ARM v7 based
 198           Qualcomm MSM chips.  Most of the pins on the MSM can be
 199           selected for GPIO, and are controlled by this driver.
 200
 201 config GPIO_MVEBU
 202         def_bool y
 203         depends on PLAT_ORION
 204         depends on OF
 205         select GPIO_GENERIC
 206         select GENERIC_IRQ_CHIP
 207
 208 config GPIO_MXC
 209         def_bool y
 210         depends on ARCH_MXC
 211         select GPIO_GENERIC
 212         select GENERIC_IRQ_CHIP
 213
 214 config GPIO_MXS
 215         def_bool y
 216         depends on ARCH_MXS
 217         select GPIO_GENERIC
 218         select GENERIC_IRQ_CHIP
 219
 220 config GPIO_OCTEON
 221         tristate "Cavium OCTEON GPIO"
 222         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 223         default y
 224         help
 225           Say yes here to support the on-chip GPIO lines on the OCTEON
 226           family of SOCs.
 227
 228 config GPIO_PL061
 229         bool "PrimeCell PL061 GPIO support"
 230         depends on ARM_AMBA
 231         select GENERIC_IRQ_CHIP
 232         help
 233           Say yes here to support the PrimeCell PL061 GPIO device
 234
 235 config GPIO_PXA
 236         bool "PXA GPIO support"
 237         depends on ARCH_PXA || ARCH_MMP
 238         help
 239           Say yes here to support the PXA GPIO device
 240
 241 config GPIO_RCAR
 242         tristate "Renesas R-Car GPIO"
 243         depends on ARM
 244         help
 245           Say yes here to support GPIO on Renesas R-Car SoCs.
 246
 247 config GPIO_SAMSUNG
 248         bool
 249         depends on PLAT_SAMSUNG
 250         help
 251           Legacy GPIO support. Use only for platforms without support for
 252           pinctrl.
 253
 254 config GPIO_SCH311X
 255         tristate "SMSC SCH311x SuperI/O GPIO"
 256         help
 257           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 258           SCH3116 "Super I/O" chipsets.
 259
 260           To compile this driver as a module, choose M here: the module will
 261           be called gpio-sch311x.
 262
 263 config GPIO_SPEAR_SPICS
 264         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 265         depends on PLAT_SPEAR
 266         select GENERIC_IRQ_CHIP
 267         help
 268           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 269
 270 config GPIO_STA2X11
 271         bool "STA2x11/ConneXt GPIO support"
 272         depends on MFD_STA2X11
 273         select GENERIC_IRQ_CHIP
 274         help
 275           Say yes here to support the STA2x11/ConneXt GPIO device.
 276           The GPIO module has 128 GPIO pins with alternate functions.
 277
 278 config GPIO_TS5500
 279         tristate "TS-5500 DIO blocks and compatibles"
 280         help
 281           This driver supports Digital I/O exposed by pin blocks found on some
 282           Technologic Systems platforms. It includes, but is not limited to, 3
 283           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 284           LCD port.
 285
 286 config GPIO_TZ1090
 287         bool "Toumaz Xenif TZ1090 GPIO support"
 288         depends on SOC_TZ1090
 289         select GENERIC_IRQ_CHIP
 290         default y
 291         help
 292           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 293
 294 config GPIO_TZ1090_PDC
 295         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 296         depends on SOC_TZ1090
 297         default y
 298         help
 299           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 300
 301 config GPIO_XILINX
 302         bool "Xilinx GPIO support"
 303         depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
 304         help
 305           Say yes here to support the Xilinx FPGA GPIO device
 306
 307 config GPIO_XTENSA
 308         bool "Xtensa GPIO32 support"
 309         depends on XTENSA
 310         depends on HAVE_XTENSA_GPIO32
 311         depends on !SMP
 312         help
 313           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 314           and EXPSTATE (output) ports
 315
 316 config GPIO_VR41XX
 317         tristate "NEC VR4100 series General-purpose I/O Uint support"
 318         depends on CPU_VR41XX
 319         help
 320           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 321
 322 config GPIO_SCH
 323         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 324         depends on PCI && X86
 325         select MFD_CORE
 326         select LPC_SCH
 327         help
 328           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 329           Intel Tunnel Creek processor or Intel Centerton processor.
 330           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 331           powered by the core power rail and are turned off during sleep
 332           modes (S3 and higher). The remaining four GPIOs are powered by
 333           the Intel SCH suspend power supply. These GPIOs remain
 334           active during S3. The suspend powered GPIOs can be used to wake the
 335           system from the Suspend-to-RAM state.
 336           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 337           core power rail and 9 from suspend power supply.
 338           The Intel Centerton processor has a total of 30 GPIO pins.
 339           Twenty-one are powered by the core power rail and 9 from the
 340           suspend power supply.
 341
 342 config GPIO_ICH
 343         tristate "Intel ICH GPIO"
 344         depends on PCI && X86
 345         select MFD_CORE
 346         select LPC_ICH
 347         help
 348           Say yes here to support the GPIO functionality of a number of Intel
 349           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 350           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 351           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 352
 353           If unsure, say N.
 354
 355 config GPIO_IOP
 356         tristate "Intel IOP GPIO"
 357         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 358         help
 359           Say yes here to support the GPIO functionality of a number of Intel
 360           IOP32X or IOP33X.
 361
 362           If unsure, say N.
 363
 364 config GPIO_VX855
 365         tristate "VIA VX855/VX875 GPIO"
 366         depends on PCI
 367         select MFD_CORE
 368         select MFD_VX855
 369         help
 370           Support access to the VX855/VX875 GPIO lines through the gpio library.
 371
 372           This driver provides common support for accessing the device,
 373           additional drivers must be enabled in order to use the
 374           functionality of the device.
 375
 376 config GPIO_GE_FPGA
 377         bool "GE FPGA based GPIO"
 378         depends on GE_FPGA
 379         help
 380           Support for common GPIO functionality provided on some GE Single Board
 381           Computers.
 382
 383           This driver provides basic support (configure as input or output, read
 384           and write pin state) for GPIO implemented in a number of GE single
 385           board computers.
 386
 387 config GPIO_LYNXPOINT
 388         tristate "Intel Lynxpoint GPIO support"
 389         depends on ACPI && X86
 390         select IRQ_DOMAIN
 391         help
 392           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 393           Requires ACPI device enumeration code to set up a platform device.
 394
 395 config GPIO_GRGPIO
 396         tristate "Aeroflex Gaisler GRGPIO support"
 397         depends on OF
 398         select GPIO_GENERIC
 399         select IRQ_DOMAIN
 400         help
 401           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 402           VHDL IP core library.
 403
 404 config GPIO_TB10X
 405         bool
 406         select GENERIC_IRQ_CHIP
 407         select OF_GPIO
 408
 409 comment "I2C GPIO expanders:"
 410
 411 config GPIO_ARIZONA
 412         tristate "Wolfson Microelectronics Arizona class devices"
 413         depends on MFD_ARIZONA
 414         help
 415           Support for GPIOs on Wolfson Arizona class devices.
 416
 417 config GPIO_LP3943
 418         tristate "TI/National Semiconductor LP3943 GPIO expander"
 419         depends on MFD_LP3943
 420         help
 421           GPIO driver for LP3943 MFD.
 422           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 423           Open drain outputs are required for this usage.
 424
 425 config GPIO_MAX7300
 426         tristate "Maxim MAX7300 GPIO expander"
 427         depends on I2C
 428         select GPIO_MAX730X
 429         help
 430           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 431
 432 config GPIO_MAX732X
 433         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 434         depends on I2C
 435         help
 436           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 437           Port Expanders. Each IO port on these chips has a fixed role of
 438           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 439           Input and Output (designed by 'P'). The combinations are listed
 440           below:
 441
 442           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 443                         max7322 (4I4O), max7323 (4P4O)
 444
 445           16 bits:      max7324 (8I8O), max7325 (8P8O),
 446                         max7326 (4I12O), max7327 (4P12O)
 447
 448           Board setup code must specify the model to use, and the start
 449           number for these GPIOs.
 450
 451 config GPIO_MAX732X_IRQ
 452         bool "Interrupt controller support for MAX732x"
 453         depends on GPIO_MAX732X=y
 454         help
 455           Say yes here to enable the max732x to be used as an interrupt
 456           controller. It requires the driver to be built in the kernel.
 457
 458 config GPIO_MC9S08DZ60
 459         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 460         depends on I2C=y && MACH_MX35_3DS
 461         help
 462           Select this to enable the MC9S08DZ60 GPIO driver
 463
 464 config GPIO_PCA953X
 465         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 466         depends on I2C
 467         help
 468           Say yes here to provide access to several register-oriented
 469           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 470           models include:
 471
 472           4 bits:       pca9536, pca9537
 473
 474           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 475                         pca9556, pca9557, pca9574, tca6408
 476
 477           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 478                         tca6416
 479
 480 config GPIO_PCA953X_IRQ
 481         bool "Interrupt controller support for PCA953x"
 482         depends on GPIO_PCA953X=y
 483         help
 484           Say yes here to enable the pca953x to be used as an interrupt
 485           controller. It requires the driver to be built in the kernel.
 486
 487 config GPIO_PCF857X
 488         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 489         depends on I2C
 490         select IRQ_DOMAIN
 491         help
 492           Say yes here to provide access to most "quasi-bidirectional" I2C
 493           GPIO expanders used for additional digital outputs or inputs.
 494           Most of these parts are from NXP, though TI is a second source for
 495           some of them.  Compatible models include:
 496
 497           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 498                     pca9670, pca9672, pca9674, pca9674a,
 499                     max7328, max7329
 500
 501           16 bits:  pcf8575, pcf8575c, pca8575,
 502                     pca9671, pca9673, pca9675
 503
 504           Your board setup code will need to declare the expanders in
 505           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 506           can then be used from drivers and other kernel code, just like
 507           other GPIOs, but only accessible from task contexts.
 508
 509           This driver provides an in-kernel interface to those GPIOs using
 510           platform-neutral GPIO calls.
 511
 512 config GPIO_RC5T583
 513         bool "RICOH RC5T583 GPIO"
 514         depends on MFD_RC5T583
 515         help
 516           Select this option to enable GPIO driver for the Ricoh RC5T583
 517           chip family.
 518           This driver provides the support for driving/reading the gpio pins
 519           of RC5T583 device through standard gpio library.
 520
 521 config GPIO_SX150X
 522         bool "Semtech SX150x I2C GPIO expander"
 523         depends on I2C=y
 524         default n
 525         help
 526           Say yes here to provide support for Semtech SX150-series I2C
 527           GPIO expanders. Compatible models include:
 528
 529           8 bits:  sx1508q
 530           16 bits: sx1509q
 531
 532 config GPIO_STMPE
 533         bool "STMPE GPIOs"
 534         depends on MFD_STMPE
 535         help
 536           This enables support for the GPIOs found on the STMPE I/O
 537           Expanders.
 538
 539 config GPIO_STP_XWAY
 540         bool "XWAY STP GPIOs"
 541         depends on SOC_XWAY
 542         help
 543           This enables support for the Serial To Parallel (STP) unit found on
 544           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 545           that can be up to 24 bit. This peripheral is aimed at driving leds.
 546           Some of the gpios/leds can be auto updated by the soc with dsl and
 547           phy status.
 548
 549 config GPIO_TC3589X
 550         bool "TC3589X GPIOs"
 551         depends on MFD_TC3589X
 552         help
 553           This enables support for the GPIOs found on the TC3589X
 554           I/O Expander.
 555
 556 config GPIO_TPS65912
 557         tristate "TI TPS65912 GPIO"
 558         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 559         help
 560           This driver supports TPS65912 gpio chip
 561
 562 config GPIO_TWL4030
 563         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 564         depends on TWL4030_CORE
 565         help
 566           Say yes here to access the GPIO signals of various multi-function
 567           power management chips from Texas Instruments.
 568
 569 config GPIO_TWL6040
 570         tristate "TWL6040 GPO"
 571         depends on TWL6040_CORE
 572         help
 573           Say yes here to access the GPO signals of twl6040
 574           audio chip from Texas Instruments.
 575
 576 config GPIO_WM831X
 577         tristate "WM831x GPIOs"
 578         depends on MFD_WM831X
 579         help
 580           Say yes here to access the GPIO signals of WM831x power management
 581           chips from Wolfson Microelectronics.
 582
 583 config GPIO_WM8350
 584         tristate "WM8350 GPIOs"
 585         depends on MFD_WM8350
 586         help
 587           Say yes here to access the GPIO signals of WM8350 power management
 588           chips from Wolfson Microelectronics.
 589
 590 config GPIO_WM8994
 591         tristate "WM8994 GPIOs"
 592         depends on MFD_WM8994
 593         help
 594           Say yes here to access the GPIO signals of WM8994 audio hub
 595           CODECs from Wolfson Microelectronics.
 596
 597 config GPIO_ADP5520
 598         tristate "GPIO Support for ADP5520 PMIC"
 599         depends on PMIC_ADP5520
 600         help
 601           This option enables support for on-chip GPIO found
 602           on Analog Devices ADP5520 PMICs.
 603
 604 config GPIO_ADP5588
 605         tristate "ADP5588 I2C GPIO expander"
 606         depends on I2C
 607         help
 608           This option enables support for 18 GPIOs found
 609           on Analog Devices ADP5588 GPIO Expanders.
 610
 611 config GPIO_ADP5588_IRQ
 612         bool "Interrupt controller support for ADP5588"
 613         depends on GPIO_ADP5588=y
 614         help
 615           Say yes here to enable the adp5588 to be used as an interrupt
 616           controller. It requires the driver to be built in the kernel.
 617
 618 config GPIO_ADNP
 619         tristate "Avionic Design N-bit GPIO expander"
 620         depends on I2C && OF_GPIO
 621         help
 622           This option enables support for N GPIOs found on Avionic Design
 623           I2C GPIO expanders. The register space will be extended by powers
 624           of two, so the controller will need to accommodate for that. For
 625           example: if a controller provides 48 pins, 6 registers will be
 626           enough to represent all pins, but the driver will assume a
 627           register layout for 64 pins (8 registers).
 628
 629 comment "PCI GPIO expanders:"
 630
 631 config GPIO_CS5535
 632         tristate "AMD CS5535/CS5536 GPIO support"
 633         depends on PCI && X86 && MFD_CS5535
 634         help
 635           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 636           can be used for quite a number of things.  The CS5535/6 is found on
 637           AMD Geode and Lemote Yeeloong devices.
 638
 639           If unsure, say N.
 640
 641 config GPIO_BT8XX
 642         tristate "BT8XX GPIO abuser"
 643         depends on PCI && VIDEO_BT848=n
 644         help
 645           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 646           as a cheap PCI GPIO card.
 647
 648           This chip can be found on Miro, Hauppauge and STB TV-cards.
 649
 650           The card needs to be physically altered for using it as a
 651           GPIO card. For more information on how to build a GPIO card
 652           from a BT8xx TV card, see the documentation file at
 653           Documentation/bt8xxgpio.txt
 654
 655           If unsure, say N.
 656
 657 config GPIO_AMD8111
 658         tristate "AMD 8111 GPIO driver"
 659         depends on PCI
 660         help
 661           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 662
 663           Note, that usually system firmware/ACPI handles GPIO pins on their
 664           own and users might easily break their systems with uncarefull usage
 665           of this driver!
 666
 667           If unsure, say N
 668
 669 config GPIO_INTEL_MID
 670         bool "Intel Mid GPIO support"
 671         depends on PCI && X86
 672         select IRQ_DOMAIN
 673         help
 674           Say Y here to support Intel Mid GPIO.
 675
 676 config GPIO_PCH
 677         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 678         depends on PCI && X86
 679         select GENERIC_IRQ_CHIP
 680         help
 681           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 682           which is an IOH(Input/Output Hub) for x86 embedded processor.
 683           This driver can access PCH GPIO device.
 684
 685           This driver also can be used for LAPIS Semiconductor IOH(Input/
 686           Output Hub), ML7223 and ML7831.
 687           ML7223 IOH is for MP(Media Phone) use.
 688           ML7831 IOH is for general purpose use.
 689           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 690           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 691
 692 config GPIO_ML_IOH
 693         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 694         depends on PCI
 695         select GENERIC_IRQ_CHIP
 696         help
 697           ML7213 is companion chip for Intel Atom E6xx series.
 698           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 699           Hub) which is for IVI(In-Vehicle Infotainment) use.
 700           This driver can access the IOH's GPIO device.
 701
 702 config GPIO_SODAVILLE
 703         bool "Intel Sodaville GPIO support"
 704         depends on X86 && PCI && OF
 705         select GPIO_GENERIC
 706         select GENERIC_IRQ_CHIP
 707         help
 708           Say Y here to support Intel Sodaville GPIO.
 709
 710 config GPIO_TIMBERDALE
 711         bool "Support for timberdale GPIO IP"
 712         depends on MFD_TIMBERDALE && HAS_IOMEM
 713         ---help---
 714         Add support for the GPIO IP in the timberdale FPGA.
 715
 716 config GPIO_RDC321X
 717         tristate "RDC R-321x GPIO support"
 718         depends on PCI
 719         select MFD_CORE
 720         select MFD_RDC321X
 721         help
 722           Support for the RDC R321x SoC GPIOs over southbridge
 723           PCI configuration space.
 724
 725 comment "SPI GPIO expanders:"
 726
 727 config GPIO_MAX7301
 728         tristate "Maxim MAX7301 GPIO expander"
 729         depends on SPI_MASTER
 730         select GPIO_MAX730X
 731         help
 732           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 733
 734 config GPIO_MCP23S08
 735         tristate "Microchip MCP23xxx I/O expander"
 736         depends on OF_GPIO
 737         depends on (SPI_MASTER && !I2C) || I2C
 738         help
 739           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 740           I/O expanders.
 741           This provides a GPIO interface supporting inputs and outputs.
 742           The I2C versions of the chips can be used as interrupt-controller.
 743
 744 config GPIO_MC33880
 745         tristate "Freescale MC33880 high-side/low-side switch"
 746         depends on SPI_MASTER
 747         help
 748           SPI driver for Freescale MC33880 high-side/low-side switch.
 749           This provides GPIO interface supporting inputs and outputs.
 750
 751 config GPIO_74X164
 752         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 753         depends on SPI_MASTER && OF
 754         help
 755           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 756           shift registers. This driver can be used to provide access
 757           to more gpio outputs.
 758
 759 comment "AC97 GPIO expanders:"
 760
 761 config GPIO_UCB1400
 762         tristate "Philips UCB1400 GPIO"
 763         depends on UCB1400_CORE
 764         help
 765           This enables support for the Philips UCB1400 GPIO pins.
 766           The UCB1400 is an AC97 audio codec.
 767
 768 comment "LPC GPIO expanders:"
 769
 770 config GPIO_KEMPLD
 771         tristate "Kontron ETX / COMexpress GPIO"
 772         depends on MFD_KEMPLD
 773         help
 774           This enables support for the PLD GPIO interface on some Kontron ETX
 775           and COMexpress (ETXexpress) modules.
 776
 777           This driver can also be built as a module. If so, the module will be
 778           called gpio-kempld.
 779
 780 comment "MODULbus GPIO expanders:"
 781
 782 config GPIO_JANZ_TTL
 783         tristate "Janz VMOD-TTL Digital IO Module"
 784         depends on MFD_JANZ_CMODIO
 785         help
 786           This enables support for the Janz VMOD-TTL Digital IO module.
 787           This driver provides support for driving the pins in output
 788           mode only. Input mode is not supported.
 789
 790 config GPIO_PALMAS
 791         bool "TI PALMAS series PMICs GPIO"
 792         depends on MFD_PALMAS
 793         help
 794           Select this option to enable GPIO driver for the TI PALMAS
 795           series chip family.
 796
 797 config GPIO_TPS6586X
 798         bool "TPS6586X GPIO"
 799         depends on MFD_TPS6586X
 800         help
 801           Select this option to enable GPIO driver for the TPS6586X
 802           chip family.
 803
 804 config GPIO_TPS65910
 805         bool "TPS65910 GPIO"
 806         depends on MFD_TPS65910
 807         help
 808           Select this option to enable GPIO driver for the TPS65910
 809           chip family.
 810
 811 config GPIO_MSIC
 812         bool "Intel MSIC mixed signal gpio support"
 813         depends on MFD_INTEL_MSIC
 814         help
 815           Enable support for GPIO on intel MSIC controllers found in
 816           intel MID devices
 817
 818 config GPIO_BCM_KONA
 819         bool "Broadcom Kona GPIO"
 820         depends on OF_GPIO
 821         help
 822           Turn on GPIO support for Broadcom "Kona" chips.
 823
 824 comment "USB GPIO expanders:"
 825
 826 config GPIO_VIPERBOARD
 827         tristate "Viperboard GPIO a & b support"
 828         depends on MFD_VIPERBOARD && USB
 829         help
 830           Say yes here to access the GPIO signals of Nano River
 831           Technologies Viperboard. There are two GPIO chips on the
 832           board: gpioa and gpiob.
 833           See viperboard API specification and Nano
 834           River Tech's viperboard.h for detailed meaning
 835           of the module parameters.
 836
 837 endif