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 config GPIO_DEVRES
  34         def_bool y
  35         depends on HAS_IOMEM
  36
  37
  38 menuconfig GPIOLIB
  39         bool "GPIO Support"
  40         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  41         select GENERIC_GPIO
  42         help
  43           This enables GPIO support through the generic GPIO library.
  44           You only need to enable this, if you also want to enable
  45           one or more of the GPIO drivers below.
  46
  47           If unsure, say N.
  48
  49 if GPIOLIB
  50
  51 config OF_GPIO
  52         def_bool y
  53         depends on OF
  54
  55 config GPIO_ACPI
  56         def_bool y
  57         depends on ACPI
  58
  59 config DEBUG_GPIO
  60         bool "Debug GPIO calls"
  61         depends on DEBUG_KERNEL
  62         help
  63           Say Y here to add some extra checks and diagnostics to GPIO calls.
  64           These checks help ensure that GPIOs have been properly initialized
  65           before they are used, and that sleeping calls are not made from
  66           non-sleeping contexts.  They can make bitbanged serial protocols
  67           slower.  The diagnostics help catch the type of setup errors
  68           that are most common when setting up new platforms or boards.
  69
  70 config GPIO_SYSFS
  71         bool "/sys/class/gpio/... (sysfs interface)"
  72         depends on SYSFS
  73         help
  74           Say Y here to add a sysfs interface for GPIOs.
  75
  76           This is mostly useful to work around omissions in a system's
  77           kernel support.  Those are common in custom and semicustom
  78           hardware assembled using standard kernels with a minimum of
  79           custom patches.  In those cases, userspace code may import
  80           a given GPIO from the kernel, if no kernel driver requested it.
  81
  82           Kernel drivers may also request that a particular GPIO be
  83           exported to userspace; this can be useful when debugging.
  84
  85 config GPIO_GENERIC
  86         tristate
  87
  88 # put drivers in the right section, in alphabetical order
  89
  90 config GPIO_DA9052
  91         tristate "Dialog DA9052 GPIO"
  92         depends on PMIC_DA9052
  93         help
  94           Say yes here to enable the GPIO driver for the DA9052 chip.
  95
  96 config GPIO_DA9055
  97         tristate "Dialog Semiconductor DA9055 GPIO"
  98         depends on MFD_DA9055
  99         help
 100           Say yes here to enable the GPIO driver for the DA9055 chip.
 101
 102           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 103           be controller by this driver.
 104
 105           If driver is built as a module it will be called gpio-da9055.
 106
 107 config GPIO_MAX730X
 108         tristate
 109
 110 comment "Memory mapped GPIO drivers:"
 111
 112 config GPIO_CLPS711X
 113         def_bool y
 114         depends on ARCH_CLPS711X
 115
 116 config GPIO_GENERIC_PLATFORM
 117         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 118         select GPIO_GENERIC
 119         help
 120           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 121
 122 config GPIO_IT8761E
 123         tristate "IT8761E GPIO support"
 124         depends on X86  # unconditional access to IO space.
 125         help
 126           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 127
 128 config GPIO_EM
 129         tristate "Emma Mobile GPIO"
 130         depends on ARM
 131         help
 132           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 133
 134 config GPIO_EP93XX
 135         def_bool y
 136         depends on ARCH_EP93XX
 137         select GPIO_GENERIC
 138
 139 config GPIO_MM_LANTIQ
 140         bool "Lantiq Memory mapped GPIOs"
 141         depends on LANTIQ && SOC_XWAY
 142         help
 143           This enables support for memory mapped GPIOs on the External Bus Unit
 144           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 145           created by attaching a 16bit latch to the bus.
 146
 147 config GPIO_MPC5200
 148         def_bool y
 149         depends on PPC_MPC52xx
 150
 151 config GPIO_MPC8XXX
 152         bool "MPC512x/MPC8xxx GPIO support"
 153         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 154                    FSL_SOC_BOOKE || PPC_86xx
 155         help
 156           Say Y here if you're going to use hardware that connects to the
 157           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 158
 159 config GPIO_MSM_V1
 160         tristate "Qualcomm MSM GPIO v1"
 161         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 162         help
 163           Say yes here to support the GPIO interface on ARM v6 based
 164           Qualcomm MSM chips.  Most of the pins on the MSM can be
 165           selected for GPIO, and are controlled by this driver.
 166
 167 config GPIO_MSM_V2
 168         tristate "Qualcomm MSM GPIO v2"
 169         depends on GPIOLIB && ARCH_MSM
 170         help
 171           Say yes here to support the GPIO interface on ARM v7 based
 172           Qualcomm MSM chips.  Most of the pins on the MSM can be
 173           selected for GPIO, and are controlled by this driver.
 174
 175 config GPIO_MVEBU
 176         def_bool y
 177         depends on PLAT_ORION
 178         depends on OF
 179         select GPIO_GENERIC
 180         select GENERIC_IRQ_CHIP
 181
 182 config GPIO_MXC
 183         def_bool y
 184         depends on ARCH_MXC
 185         select GPIO_GENERIC
 186         select GENERIC_IRQ_CHIP
 187
 188 config GPIO_MXS
 189         def_bool y
 190         depends on ARCH_MXS
 191         select GPIO_GENERIC
 192         select GENERIC_IRQ_CHIP
 193
 194 config GPIO_PL061
 195         bool "PrimeCell PL061 GPIO support"
 196         depends on ARM && ARM_AMBA
 197         select GENERIC_IRQ_CHIP
 198         help
 199           Say yes here to support the PrimeCell PL061 GPIO device
 200
 201 config GPIO_PXA
 202         bool "PXA GPIO support"
 203         depends on ARCH_PXA || ARCH_MMP
 204         help
 205           Say yes here to support the PXA GPIO device
 206
 207 config GPIO_RCAR
 208         tristate "Renesas R-Car GPIO"
 209         depends on ARM
 210         help
 211           Say yes here to support GPIO on Renesas R-Car SoCs.
 212
 213 config GPIO_SPEAR_SPICS
 214         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 215         depends on PLAT_SPEAR
 216         select GENERIC_IRQ_CHIP
 217         help
 218           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 219
 220 config GPIO_STA2X11
 221         bool "STA2x11/ConneXt GPIO support"
 222         depends on MFD_STA2X11
 223         select GENERIC_IRQ_CHIP
 224         help
 225           Say yes here to support the STA2x11/ConneXt GPIO device.
 226           The GPIO module has 128 GPIO pins with alternate functions.
 227
 228 config GPIO_TS5500
 229         tristate "TS-5500 DIO blocks and compatibles"
 230         help
 231           This driver supports Digital I/O exposed by pin blocks found on some
 232           Technologic Systems platforms. It includes, but is not limited to, 3
 233           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 234           LCD port.
 235
 236 config GPIO_XILINX
 237         bool "Xilinx GPIO support"
 238         depends on PPC_OF || MICROBLAZE
 239         help
 240           Say yes here to support the Xilinx FPGA GPIO device
 241
 242 config GPIO_VR41XX
 243         tristate "NEC VR4100 series General-purpose I/O Uint support"
 244         depends on CPU_VR41XX
 245         help
 246           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 247
 248 config GPIO_SCH
 249         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 250         depends on PCI && X86
 251         select MFD_CORE
 252         select LPC_SCH
 253         help
 254           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 255           Intel Tunnel Creek processor or Intel Centerton processor.
 256           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 257           powered by the core power rail and are turned off during sleep
 258           modes (S3 and higher). The remaining four GPIOs are powered by
 259           the Intel SCH suspend power supply. These GPIOs remain
 260           active during S3. The suspend powered GPIOs can be used to wake the
 261           system from the Suspend-to-RAM state.
 262           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 263           core power rail and 9 from suspend power supply.
 264           The Intel Centerton processor has a total of 30 GPIO pins.
 265           Twenty-one are powered by the core power rail and 9 from the
 266           suspend power supply.
 267
 268 config GPIO_ICH
 269         tristate "Intel ICH GPIO"
 270         depends on PCI && X86
 271         select MFD_CORE
 272         select LPC_ICH
 273         help
 274           Say yes here to support the GPIO functionality of a number of Intel
 275           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 276           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 277           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 278
 279           If unsure, say N.
 280
 281 config GPIO_VX855
 282         tristate "VIA VX855/VX875 GPIO"
 283         depends on PCI && GENERIC_HARDIRQS
 284         select MFD_CORE
 285         select MFD_VX855
 286         help
 287           Support access to the VX855/VX875 GPIO lines through the gpio library.
 288
 289           This driver provides common support for accessing the device,
 290           additional drivers must be enabled in order to use the
 291           functionality of the device.
 292
 293 config GPIO_GE_FPGA
 294         bool "GE FPGA based GPIO"
 295         depends on GE_FPGA
 296         help
 297           Support for common GPIO functionality provided on some GE Single Board
 298           Computers.
 299
 300           This driver provides basic support (configure as input or output, read
 301           and write pin state) for GPIO implemented in a number of GE single
 302           board computers.
 303
 304 config GPIO_LYNXPOINT
 305         bool "Intel Lynxpoint GPIO support"
 306         depends on ACPI && X86
 307         select IRQ_DOMAIN
 308         help
 309           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 310           Requires ACPI device enumeration code to set up a platform device.
 311
 312 config GPIO_GRGPIO
 313         tristate "Aeroflex Gaisler GRGPIO support"
 314         depends on OF
 315         select GPIO_GENERIC
 316         select IRQ_DOMAIN
 317         help
 318           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 319           VHDL IP core library.
 320
 321 comment "I2C GPIO expanders:"
 322
 323 config GPIO_ARIZONA
 324         tristate "Wolfson Microelectronics Arizona class devices"
 325         depends on MFD_ARIZONA
 326         help
 327           Support for GPIOs on Wolfson Arizona class devices.
 328
 329 config GPIO_MAX7300
 330         tristate "Maxim MAX7300 GPIO expander"
 331         depends on I2C
 332         select GPIO_MAX730X
 333         help
 334           GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
 335
 336 config GPIO_MAX732X
 337         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 338         depends on I2C
 339         help
 340           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 341           Port Expanders. Each IO port on these chips has a fixed role of
 342           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 343           Input and Output (designed by 'P'). The combinations are listed
 344           below:
 345
 346           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 347                         max7322 (4I4O), max7323 (4P4O)
 348
 349           16 bits:      max7324 (8I8O), max7325 (8P8O),
 350                         max7326 (4I12O), max7327 (4P12O)
 351
 352           Board setup code must specify the model to use, and the start
 353           number for these GPIOs.
 354
 355 config GPIO_MAX732X_IRQ
 356         bool "Interrupt controller support for MAX732x"
 357         depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
 358         help
 359           Say yes here to enable the max732x to be used as an interrupt
 360           controller. It requires the driver to be built in the kernel.
 361
 362 config GPIO_MC9S08DZ60
 363         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 364         depends on I2C=y && MACH_MX35_3DS
 365         help
 366           Select this to enable the MC9S08DZ60 GPIO driver
 367
 368 config GPIO_PCA953X
 369         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 370         depends on I2C
 371         help
 372           Say yes here to provide access to several register-oriented
 373           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 374           models include:
 375
 376           4 bits:       pca9536, pca9537
 377
 378           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 379                         pca9556, pca9557, pca9574, tca6408
 380
 381           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 382                         tca6416
 383
 384 config GPIO_PCA953X_IRQ
 385         bool "Interrupt controller support for PCA953x"
 386         depends on GPIO_PCA953X=y
 387         help
 388           Say yes here to enable the pca953x to be used as an interrupt
 389           controller. It requires the driver to be built in the kernel.
 390
 391 config GPIO_PCF857X
 392         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 393         depends on I2C
 394         select IRQ_DOMAIN
 395         help
 396           Say yes here to provide access to most "quasi-bidirectional" I2C
 397           GPIO expanders used for additional digital outputs or inputs.
 398           Most of these parts are from NXP, though TI is a second source for
 399           some of them.  Compatible models include:
 400
 401           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 402                     pca9670, pca9672, pca9674, pca9674a,
 403                     max7328, max7329
 404
 405           16 bits:  pcf8575, pcf8575c, pca8575,
 406                     pca9671, pca9673, pca9675
 407
 408           Your board setup code will need to declare the expanders in
 409           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 410           can then be used from drivers and other kernel code, just like
 411           other GPIOs, but only accessible from task contexts.
 412
 413           This driver provides an in-kernel interface to those GPIOs using
 414           platform-neutral GPIO calls.
 415
 416 config GPIO_RC5T583
 417         bool "RICOH RC5T583 GPIO"
 418         depends on MFD_RC5T583
 419         help
 420           Select this option to enable GPIO driver for the Ricoh RC5T583
 421           chip family.
 422           This driver provides the support for driving/reading the gpio pins
 423           of RC5T583 device through standard gpio library.
 424
 425 config GPIO_SX150X
 426         bool "Semtech SX150x I2C GPIO expander"
 427         depends on I2C=y
 428         default n
 429         help
 430           Say yes here to provide support for Semtech SX150-series I2C
 431           GPIO expanders. Compatible models include:
 432
 433           8 bits:  sx1508q
 434           16 bits: sx1509q
 435
 436 config GPIO_STMPE
 437         bool "STMPE GPIOs"
 438         depends on MFD_STMPE
 439         help
 440           This enables support for the GPIOs found on the STMPE I/O
 441           Expanders.
 442
 443 config GPIO_STP_XWAY
 444         bool "XWAY STP GPIOs"
 445         depends on SOC_XWAY
 446         help
 447           This enables support for the Serial To Parallel (STP) unit found on
 448           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 449           that can be up to 24 bit. This peripheral is aimed at driving leds.
 450           Some of the gpios/leds can be auto updated by the soc with dsl and
 451           phy status.
 452
 453 config GPIO_TC3589X
 454         bool "TC3589X GPIOs"
 455         depends on MFD_TC3589X
 456         help
 457           This enables support for the GPIOs found on the TC3589X
 458           I/O Expander.
 459
 460 config GPIO_TPS65912
 461         tristate "TI TPS65912 GPIO"
 462         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 463         help
 464           This driver supports TPS65912 gpio chip
 465
 466 config GPIO_TWL4030
 467         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 468         depends on TWL4030_CORE
 469         help
 470           Say yes here to access the GPIO signals of various multi-function
 471           power management chips from Texas Instruments.
 472
 473 config GPIO_TWL6040
 474         tristate "TWL6040 GPO"
 475         depends on TWL6040_CORE
 476         help
 477           Say yes here to access the GPO signals of twl6040
 478           audio chip from Texas Instruments.
 479
 480 config GPIO_WM831X
 481         tristate "WM831x GPIOs"
 482         depends on MFD_WM831X
 483         help
 484           Say yes here to access the GPIO signals of WM831x power management
 485           chips from Wolfson Microelectronics.
 486
 487 config GPIO_WM8350
 488         tristate "WM8350 GPIOs"
 489         depends on MFD_WM8350
 490         help
 491           Say yes here to access the GPIO signals of WM8350 power management
 492           chips from Wolfson Microelectronics.
 493
 494 config GPIO_WM8994
 495         tristate "WM8994 GPIOs"
 496         depends on MFD_WM8994
 497         help
 498           Say yes here to access the GPIO signals of WM8994 audio hub
 499           CODECs from Wolfson Microelectronics.
 500
 501 config GPIO_ADP5520
 502         tristate "GPIO Support for ADP5520 PMIC"
 503         depends on PMIC_ADP5520
 504         help
 505           This option enables support for on-chip GPIO found
 506           on Analog Devices ADP5520 PMICs.
 507
 508 config GPIO_ADP5588
 509         tristate "ADP5588 I2C GPIO expander"
 510         depends on I2C
 511         help
 512           This option enables support for 18 GPIOs found
 513           on Analog Devices ADP5588 GPIO Expanders.
 514
 515 config GPIO_ADP5588_IRQ
 516         bool "Interrupt controller support for ADP5588"
 517         depends on GPIO_ADP5588=y
 518         help
 519           Say yes here to enable the adp5588 to be used as an interrupt
 520           controller. It requires the driver to be built in the kernel.
 521
 522 config GPIO_ADNP
 523         tristate "Avionic Design N-bit GPIO expander"
 524         depends on I2C && OF_GPIO
 525         help
 526           This option enables support for N GPIOs found on Avionic Design
 527           I2C GPIO expanders. The register space will be extended by powers
 528           of two, so the controller will need to accommodate for that. For
 529           example: if a controller provides 48 pins, 6 registers will be
 530           enough to represent all pins, but the driver will assume a
 531           register layout for 64 pins (8 registers).
 532
 533 comment "PCI GPIO expanders:"
 534
 535 config GPIO_CS5535
 536         tristate "AMD CS5535/CS5536 GPIO support"
 537         depends on PCI && X86 && MFD_CS5535
 538         help
 539           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 540           can be used for quite a number of things.  The CS5535/6 is found on
 541           AMD Geode and Lemote Yeeloong devices.
 542
 543           If unsure, say N.
 544
 545 config GPIO_BT8XX
 546         tristate "BT8XX GPIO abuser"
 547         depends on PCI && VIDEO_BT848=n
 548         help
 549           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 550           as a cheap PCI GPIO card.
 551
 552           This chip can be found on Miro, Hauppauge and STB TV-cards.
 553
 554           The card needs to be physically altered for using it as a
 555           GPIO card. For more information on how to build a GPIO card
 556           from a BT8xx TV card, see the documentation file at
 557           Documentation/bt8xxgpio.txt
 558
 559           If unsure, say N.
 560
 561 config GPIO_AMD8111
 562         tristate "AMD 8111 GPIO driver"
 563         depends on PCI
 564         help
 565           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 566
 567           Note, that usually system firmware/ACPI handles GPIO pins on their
 568           own and users might easily break their systems with uncarefull usage
 569           of this driver!
 570
 571           If unsure, say N
 572
 573 config GPIO_LANGWELL
 574         bool "Intel Langwell/Penwell GPIO support"
 575         depends on PCI && X86
 576         select IRQ_DOMAIN
 577         help
 578           Say Y here to support Intel Langwell/Penwell GPIO.
 579
 580 config GPIO_PCH
 581         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 582         depends on PCI && X86
 583         select GENERIC_IRQ_CHIP
 584         help
 585           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 586           which is an IOH(Input/Output Hub) for x86 embedded processor.
 587           This driver can access PCH GPIO device.
 588
 589           This driver also can be used for LAPIS Semiconductor IOH(Input/
 590           Output Hub), ML7223 and ML7831.
 591           ML7223 IOH is for MP(Media Phone) use.
 592           ML7831 IOH is for general purpose use.
 593           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 594           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 595
 596 config GPIO_ML_IOH
 597         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 598         depends on PCI
 599         select GENERIC_IRQ_CHIP
 600         help
 601           ML7213 is companion chip for Intel Atom E6xx series.
 602           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 603           Hub) which is for IVI(In-Vehicle Infotainment) use.
 604           This driver can access the IOH's GPIO device.
 605
 606 config GPIO_SODAVILLE
 607         bool "Intel Sodaville GPIO support"
 608         depends on X86 && PCI && OF
 609         select GPIO_GENERIC
 610         select GENERIC_IRQ_CHIP
 611         help
 612           Say Y here to support Intel Sodaville GPIO.
 613
 614 config GPIO_TIMBERDALE
 615         bool "Support for timberdale GPIO IP"
 616         depends on MFD_TIMBERDALE && HAS_IOMEM
 617         ---help---
 618         Add support for the GPIO IP in the timberdale FPGA.
 619
 620 config GPIO_RDC321X
 621         tristate "RDC R-321x GPIO support"
 622         depends on PCI && GENERIC_HARDIRQS
 623         select MFD_CORE
 624         select MFD_RDC321X
 625         help
 626           Support for the RDC R321x SoC GPIOs over southbridge
 627           PCI configuration space.
 628
 629 comment "SPI GPIO expanders:"
 630
 631 config GPIO_MAX7301
 632         tristate "Maxim MAX7301 GPIO expander"
 633         depends on SPI_MASTER
 634         select GPIO_MAX730X
 635         help
 636           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 637
 638 config GPIO_MCP23S08
 639         tristate "Microchip MCP23xxx I/O expander"
 640         depends on SPI_MASTER || I2C
 641         help
 642           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 643           I/O expanders.
 644           This provides a GPIO interface supporting inputs and outputs.
 645
 646 config GPIO_MC33880
 647         tristate "Freescale MC33880 high-side/low-side switch"
 648         depends on SPI_MASTER
 649         help
 650           SPI driver for Freescale MC33880 high-side/low-side switch.
 651           This provides GPIO interface supporting inputs and outputs.
 652
 653 config GPIO_74X164
 654         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 655         depends on SPI_MASTER
 656         help
 657           Platform driver for 74x164 compatible serial-in/parallel-out
 658           8-outputs shift registers. This driver can be used to provide access
 659           to more gpio outputs.
 660
 661 comment "AC97 GPIO expanders:"
 662
 663 config GPIO_UCB1400
 664         bool "Philips UCB1400 GPIO"
 665         depends on UCB1400_CORE
 666         help
 667           This enables support for the Philips UCB1400 GPIO pins.
 668           The UCB1400 is an AC97 audio codec.
 669
 670 comment "MODULbus GPIO expanders:"
 671
 672 config GPIO_JANZ_TTL
 673         tristate "Janz VMOD-TTL Digital IO Module"
 674         depends on MFD_JANZ_CMODIO
 675         help
 676           This enables support for the Janz VMOD-TTL Digital IO module.
 677           This driver provides support for driving the pins in output
 678           mode only. Input mode is not supported.
 679
 680 config GPIO_PALMAS
 681         bool "TI PALMAS series PMICs GPIO"
 682         depends on MFD_PALMAS
 683         help
 684           Select this option to enable GPIO driver for the TI PALMAS
 685           series chip family.
 686
 687 config GPIO_TPS6586X
 688         bool "TPS6586X GPIO"
 689         depends on MFD_TPS6586X
 690         help
 691           Select this option to enable GPIO driver for the TPS6586X
 692           chip family.
 693
 694 config GPIO_TPS65910
 695         bool "TPS65910 GPIO"
 696         depends on MFD_TPS65910
 697         help
 698           Select this option to enable GPIO driver for the TPS65910
 699           chip family.
 700
 701 config GPIO_MSIC
 702         bool "Intel MSIC mixed signal gpio support"
 703         depends on MFD_INTEL_MSIC
 704         help
 705           Enable support for GPIO on intel MSIC controllers found in
 706           intel MID devices
 707
 708 comment "USB GPIO expanders:"
 709
 710 config GPIO_VIPERBOARD
 711         tristate "Viperboard GPIO a & b support"
 712         depends on MFD_VIPERBOARD && USB
 713         help
 714           Say yes here to access the GPIO signals of Nano River
 715           Technologies Viperboard. There are two GPIO chips on the
 716           board: gpioa and gpiob.
 717           See viperboard API specification and Nano
 718           River Tech's viperboard.h for detailed meaning
 719           of the module parameters.
 720
 721 endif