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         help
  42           This enables GPIO support through the generic GPIO library.
  43           You only need to enable this, if you also want to enable
  44           one or more of the GPIO drivers below.
  45
  46           If unsure, say N.
  47
  48 if GPIOLIB
  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
 114         select GPIO_GENERIC
 115         help
 116           Say yes here to support GPIO on CLPS711X SoCs.
 117
 118 config GPIO_GENERIC_PLATFORM
 119         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 120         select GPIO_GENERIC
 121         help
 122           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 123
 124 config GPIO_IT8761E
 125         tristate "IT8761E GPIO support"
 126         depends on X86  # unconditional access to IO space.
 127         help
 128           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 129
 130 config GPIO_EM
 131         tristate "Emma Mobile GPIO"
 132         depends on ARM
 133         help
 134           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 135
 136 config GPIO_EP93XX
 137         def_bool y
 138         depends on ARCH_EP93XX
 139         select GPIO_GENERIC
 140
 141 config GPIO_MM_LANTIQ
 142         bool "Lantiq Memory mapped GPIOs"
 143         depends on LANTIQ && SOC_XWAY
 144         help
 145           This enables support for memory mapped GPIOs on the External Bus Unit
 146           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 147           created by attaching a 16bit latch to the bus.
 148
 149 config GPIO_MPC5200
 150         def_bool y
 151         depends on PPC_MPC52xx
 152
 153 config GPIO_MPC8XXX
 154         bool "MPC512x/MPC8xxx GPIO support"
 155         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 156                    FSL_SOC_BOOKE || PPC_86xx
 157         help
 158           Say Y here if you're going to use hardware that connects to the
 159           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 160
 161 config GPIO_MSM_V1
 162         tristate "Qualcomm MSM GPIO v1"
 163         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 164         help
 165           Say yes here to support the GPIO interface on ARM v6 based
 166           Qualcomm MSM chips.  Most of the pins on the MSM can be
 167           selected for GPIO, and are controlled by this driver.
 168
 169 config GPIO_MSM_V2
 170         tristate "Qualcomm MSM GPIO v2"
 171         depends on GPIOLIB && OF && ARCH_MSM
 172         help
 173           Say yes here to support the GPIO interface on ARM v7 based
 174           Qualcomm MSM chips.  Most of the pins on the MSM can be
 175           selected for GPIO, and are controlled by this driver.
 176
 177 config GPIO_MVEBU
 178         def_bool y
 179         depends on PLAT_ORION
 180         depends on OF
 181         select GPIO_GENERIC
 182         select GENERIC_IRQ_CHIP
 183
 184 config GPIO_MXC
 185         def_bool y
 186         depends on ARCH_MXC
 187         select GPIO_GENERIC
 188         select GENERIC_IRQ_CHIP
 189
 190 config GPIO_MXS
 191         def_bool y
 192         depends on ARCH_MXS
 193         select GPIO_GENERIC
 194         select GENERIC_IRQ_CHIP
 195
 196 config GPIO_PL061
 197         bool "PrimeCell PL061 GPIO support"
 198         depends on ARM && ARM_AMBA
 199         select GENERIC_IRQ_CHIP
 200         help
 201           Say yes here to support the PrimeCell PL061 GPIO device
 202
 203 config GPIO_PXA
 204         bool "PXA GPIO support"
 205         depends on ARCH_PXA || ARCH_MMP
 206         help
 207           Say yes here to support the PXA GPIO device
 208
 209 config GPIO_RCAR
 210         tristate "Renesas R-Car GPIO"
 211         depends on ARM
 212         help
 213           Say yes here to support GPIO on Renesas R-Car SoCs.
 214
 215 config GPIO_SAMSUNG
 216         bool
 217         depends on PLAT_SAMSUNG
 218         help
 219           Legacy GPIO support. Use only for platforms without support for
 220           pinctrl.
 221
 222 config GPIO_SPEAR_SPICS
 223         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 224         depends on PLAT_SPEAR
 225         select GENERIC_IRQ_CHIP
 226         help
 227           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 228
 229 config GPIO_STA2X11
 230         bool "STA2x11/ConneXt GPIO support"
 231         depends on MFD_STA2X11
 232         select GENERIC_IRQ_CHIP
 233         help
 234           Say yes here to support the STA2x11/ConneXt GPIO device.
 235           The GPIO module has 128 GPIO pins with alternate functions.
 236
 237 config GPIO_TS5500
 238         tristate "TS-5500 DIO blocks and compatibles"
 239         help
 240           This driver supports Digital I/O exposed by pin blocks found on some
 241           Technologic Systems platforms. It includes, but is not limited to, 3
 242           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 243           LCD port.
 244
 245 config GPIO_XILINX
 246         bool "Xilinx GPIO support"
 247         depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
 248         help
 249           Say yes here to support the Xilinx FPGA GPIO device
 250
 251 config GPIO_VR41XX
 252         tristate "NEC VR4100 series General-purpose I/O Uint support"
 253         depends on CPU_VR41XX
 254         help
 255           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 256
 257 config GPIO_SCH
 258         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 259         depends on PCI && X86
 260         select MFD_CORE
 261         select LPC_SCH
 262         help
 263           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 264           Intel Tunnel Creek processor or Intel Centerton processor.
 265           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 266           powered by the core power rail and are turned off during sleep
 267           modes (S3 and higher). The remaining four GPIOs are powered by
 268           the Intel SCH suspend power supply. These GPIOs remain
 269           active during S3. The suspend powered GPIOs can be used to wake the
 270           system from the Suspend-to-RAM state.
 271           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 272           core power rail and 9 from suspend power supply.
 273           The Intel Centerton processor has a total of 30 GPIO pins.
 274           Twenty-one are powered by the core power rail and 9 from the
 275           suspend power supply.
 276
 277 config GPIO_ICH
 278         tristate "Intel ICH GPIO"
 279         depends on PCI && X86
 280         select MFD_CORE
 281         select LPC_ICH
 282         help
 283           Say yes here to support the GPIO functionality of a number of Intel
 284           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 285           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 286           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 287
 288           If unsure, say N.
 289
 290 config GPIO_VX855
 291         tristate "VIA VX855/VX875 GPIO"
 292         depends on PCI && GENERIC_HARDIRQS
 293         select MFD_CORE
 294         select MFD_VX855
 295         help
 296           Support access to the VX855/VX875 GPIO lines through the gpio library.
 297
 298           This driver provides common support for accessing the device,
 299           additional drivers must be enabled in order to use the
 300           functionality of the device.
 301
 302 config GPIO_GE_FPGA
 303         bool "GE FPGA based GPIO"
 304         depends on GE_FPGA
 305         help
 306           Support for common GPIO functionality provided on some GE Single Board
 307           Computers.
 308
 309           This driver provides basic support (configure as input or output, read
 310           and write pin state) for GPIO implemented in a number of GE single
 311           board computers.
 312
 313 config GPIO_LYNXPOINT
 314         bool "Intel Lynxpoint GPIO support"
 315         depends on ACPI && X86
 316         select IRQ_DOMAIN
 317         help
 318           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 319           Requires ACPI device enumeration code to set up a platform device.
 320
 321 config GPIO_GRGPIO
 322         tristate "Aeroflex Gaisler GRGPIO support"
 323         depends on OF
 324         select GPIO_GENERIC
 325         select IRQ_DOMAIN
 326         help
 327           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 328           VHDL IP core library.
 329
 330 comment "I2C GPIO expanders:"
 331
 332 config GPIO_ARIZONA
 333         tristate "Wolfson Microelectronics Arizona class devices"
 334         depends on MFD_ARIZONA
 335         help
 336           Support for GPIOs on Wolfson Arizona class devices.
 337
 338 config GPIO_MAX7300
 339         tristate "Maxim MAX7300 GPIO expander"
 340         depends on I2C
 341         select GPIO_MAX730X
 342         help
 343           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 344
 345 config GPIO_MAX732X
 346         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 347         depends on I2C
 348         help
 349           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 350           Port Expanders. Each IO port on these chips has a fixed role of
 351           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 352           Input and Output (designed by 'P'). The combinations are listed
 353           below:
 354
 355           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 356                         max7322 (4I4O), max7323 (4P4O)
 357
 358           16 bits:      max7324 (8I8O), max7325 (8P8O),
 359                         max7326 (4I12O), max7327 (4P12O)
 360
 361           Board setup code must specify the model to use, and the start
 362           number for these GPIOs.
 363
 364 config GPIO_MAX732X_IRQ
 365         bool "Interrupt controller support for MAX732x"
 366         depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
 367         help
 368           Say yes here to enable the max732x to be used as an interrupt
 369           controller. It requires the driver to be built in the kernel.
 370
 371 config GPIO_MC9S08DZ60
 372         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 373         depends on I2C=y && MACH_MX35_3DS
 374         help
 375           Select this to enable the MC9S08DZ60 GPIO driver
 376
 377 config GPIO_PCA953X
 378         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 379         depends on I2C
 380         help
 381           Say yes here to provide access to several register-oriented
 382           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 383           models include:
 384
 385           4 bits:       pca9536, pca9537
 386
 387           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 388                         pca9556, pca9557, pca9574, tca6408
 389
 390           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 391                         tca6416
 392
 393 config GPIO_PCA953X_IRQ
 394         bool "Interrupt controller support for PCA953x"
 395         depends on GPIO_PCA953X=y
 396         help
 397           Say yes here to enable the pca953x to be used as an interrupt
 398           controller. It requires the driver to be built in the kernel.
 399
 400 config GPIO_PCF857X
 401         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 402         depends on I2C
 403         select IRQ_DOMAIN
 404         help
 405           Say yes here to provide access to most "quasi-bidirectional" I2C
 406           GPIO expanders used for additional digital outputs or inputs.
 407           Most of these parts are from NXP, though TI is a second source for
 408           some of them.  Compatible models include:
 409
 410           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 411                     pca9670, pca9672, pca9674, pca9674a,
 412                     max7328, max7329
 413
 414           16 bits:  pcf8575, pcf8575c, pca8575,
 415                     pca9671, pca9673, pca9675
 416
 417           Your board setup code will need to declare the expanders in
 418           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 419           can then be used from drivers and other kernel code, just like
 420           other GPIOs, but only accessible from task contexts.
 421
 422           This driver provides an in-kernel interface to those GPIOs using
 423           platform-neutral GPIO calls.
 424
 425 config GPIO_RC5T583
 426         bool "RICOH RC5T583 GPIO"
 427         depends on MFD_RC5T583
 428         help
 429           Select this option to enable GPIO driver for the Ricoh RC5T583
 430           chip family.
 431           This driver provides the support for driving/reading the gpio pins
 432           of RC5T583 device through standard gpio library.
 433
 434 config GPIO_SX150X
 435         bool "Semtech SX150x I2C GPIO expander"
 436         depends on I2C=y
 437         default n
 438         help
 439           Say yes here to provide support for Semtech SX150-series I2C
 440           GPIO expanders. Compatible models include:
 441
 442           8 bits:  sx1508q
 443           16 bits: sx1509q
 444
 445 config GPIO_STMPE
 446         bool "STMPE GPIOs"
 447         depends on MFD_STMPE
 448         help
 449           This enables support for the GPIOs found on the STMPE I/O
 450           Expanders.
 451
 452 config GPIO_STP_XWAY
 453         bool "XWAY STP GPIOs"
 454         depends on SOC_XWAY
 455         help
 456           This enables support for the Serial To Parallel (STP) unit found on
 457           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 458           that can be up to 24 bit. This peripheral is aimed at driving leds.
 459           Some of the gpios/leds can be auto updated by the soc with dsl and
 460           phy status.
 461
 462 config GPIO_TC3589X
 463         bool "TC3589X GPIOs"
 464         depends on MFD_TC3589X
 465         help
 466           This enables support for the GPIOs found on the TC3589X
 467           I/O Expander.
 468
 469 config GPIO_TPS65912
 470         tristate "TI TPS65912 GPIO"
 471         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 472         help
 473           This driver supports TPS65912 gpio chip
 474
 475 config GPIO_TWL4030
 476         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 477         depends on TWL4030_CORE
 478         help
 479           Say yes here to access the GPIO signals of various multi-function
 480           power management chips from Texas Instruments.
 481
 482 config GPIO_TWL6040
 483         tristate "TWL6040 GPO"
 484         depends on TWL6040_CORE
 485         help
 486           Say yes here to access the GPO signals of twl6040
 487           audio chip from Texas Instruments.
 488
 489 config GPIO_WM831X
 490         tristate "WM831x GPIOs"
 491         depends on MFD_WM831X
 492         help
 493           Say yes here to access the GPIO signals of WM831x power management
 494           chips from Wolfson Microelectronics.
 495
 496 config GPIO_WM8350
 497         tristate "WM8350 GPIOs"
 498         depends on MFD_WM8350
 499         help
 500           Say yes here to access the GPIO signals of WM8350 power management
 501           chips from Wolfson Microelectronics.
 502
 503 config GPIO_WM8994
 504         tristate "WM8994 GPIOs"
 505         depends on MFD_WM8994
 506         help
 507           Say yes here to access the GPIO signals of WM8994 audio hub
 508           CODECs from Wolfson Microelectronics.
 509
 510 config GPIO_ADP5520
 511         tristate "GPIO Support for ADP5520 PMIC"
 512         depends on PMIC_ADP5520
 513         help
 514           This option enables support for on-chip GPIO found
 515           on Analog Devices ADP5520 PMICs.
 516
 517 config GPIO_ADP5588
 518         tristate "ADP5588 I2C GPIO expander"
 519         depends on I2C
 520         help
 521           This option enables support for 18 GPIOs found
 522           on Analog Devices ADP5588 GPIO Expanders.
 523
 524 config GPIO_ADP5588_IRQ
 525         bool "Interrupt controller support for ADP5588"
 526         depends on GPIO_ADP5588=y
 527         help
 528           Say yes here to enable the adp5588 to be used as an interrupt
 529           controller. It requires the driver to be built in the kernel.
 530
 531 config GPIO_ADNP
 532         tristate "Avionic Design N-bit GPIO expander"
 533         depends on I2C && OF_GPIO
 534         help
 535           This option enables support for N GPIOs found on Avionic Design
 536           I2C GPIO expanders. The register space will be extended by powers
 537           of two, so the controller will need to accommodate for that. For
 538           example: if a controller provides 48 pins, 6 registers will be
 539           enough to represent all pins, but the driver will assume a
 540           register layout for 64 pins (8 registers).
 541
 542 comment "PCI GPIO expanders:"
 543
 544 config GPIO_CS5535
 545         tristate "AMD CS5535/CS5536 GPIO support"
 546         depends on PCI && X86 && MFD_CS5535
 547         help
 548           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 549           can be used for quite a number of things.  The CS5535/6 is found on
 550           AMD Geode and Lemote Yeeloong devices.
 551
 552           If unsure, say N.
 553
 554 config GPIO_BT8XX
 555         tristate "BT8XX GPIO abuser"
 556         depends on PCI && VIDEO_BT848=n
 557         help
 558           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 559           as a cheap PCI GPIO card.
 560
 561           This chip can be found on Miro, Hauppauge and STB TV-cards.
 562
 563           The card needs to be physically altered for using it as a
 564           GPIO card. For more information on how to build a GPIO card
 565           from a BT8xx TV card, see the documentation file at
 566           Documentation/bt8xxgpio.txt
 567
 568           If unsure, say N.
 569
 570 config GPIO_AMD8111
 571         tristate "AMD 8111 GPIO driver"
 572         depends on PCI
 573         help
 574           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 575
 576           Note, that usually system firmware/ACPI handles GPIO pins on their
 577           own and users might easily break their systems with uncarefull usage
 578           of this driver!
 579
 580           If unsure, say N
 581
 582 config GPIO_LANGWELL
 583         bool "Intel Langwell/Penwell GPIO support"
 584         depends on PCI && X86
 585         select IRQ_DOMAIN
 586         help
 587           Say Y here to support Intel Langwell/Penwell GPIO.
 588
 589 config GPIO_PCH
 590         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 591         depends on PCI && X86
 592         select GENERIC_IRQ_CHIP
 593         help
 594           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 595           which is an IOH(Input/Output Hub) for x86 embedded processor.
 596           This driver can access PCH GPIO device.
 597
 598           This driver also can be used for LAPIS Semiconductor IOH(Input/
 599           Output Hub), ML7223 and ML7831.
 600           ML7223 IOH is for MP(Media Phone) use.
 601           ML7831 IOH is for general purpose use.
 602           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 603           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 604
 605 config GPIO_ML_IOH
 606         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 607         depends on PCI
 608         select GENERIC_IRQ_CHIP
 609         help
 610           ML7213 is companion chip for Intel Atom E6xx series.
 611           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 612           Hub) which is for IVI(In-Vehicle Infotainment) use.
 613           This driver can access the IOH's GPIO device.
 614
 615 config GPIO_SODAVILLE
 616         bool "Intel Sodaville GPIO support"
 617         depends on X86 && PCI && OF
 618         select GPIO_GENERIC
 619         select GENERIC_IRQ_CHIP
 620         help
 621           Say Y here to support Intel Sodaville GPIO.
 622
 623 config GPIO_TIMBERDALE
 624         bool "Support for timberdale GPIO IP"
 625         depends on MFD_TIMBERDALE && HAS_IOMEM
 626         ---help---
 627         Add support for the GPIO IP in the timberdale FPGA.
 628
 629 config GPIO_RDC321X
 630         tristate "RDC R-321x GPIO support"
 631         depends on PCI && GENERIC_HARDIRQS
 632         select MFD_CORE
 633         select MFD_RDC321X
 634         help
 635           Support for the RDC R321x SoC GPIOs over southbridge
 636           PCI configuration space.
 637
 638 comment "SPI GPIO expanders:"
 639
 640 config GPIO_MAX7301
 641         tristate "Maxim MAX7301 GPIO expander"
 642         depends on SPI_MASTER
 643         select GPIO_MAX730X
 644         help
 645           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 646
 647 config GPIO_MCP23S08
 648         tristate "Microchip MCP23xxx I/O expander"
 649         depends on (SPI_MASTER && !I2C) || I2C
 650         help
 651           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 652           I/O expanders.
 653           This provides a GPIO interface supporting inputs and outputs.
 654
 655 config GPIO_MC33880
 656         tristate "Freescale MC33880 high-side/low-side switch"
 657         depends on SPI_MASTER
 658         help
 659           SPI driver for Freescale MC33880 high-side/low-side switch.
 660           This provides GPIO interface supporting inputs and outputs.
 661
 662 config GPIO_74X164
 663         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 664         depends on SPI_MASTER
 665         help
 666           Platform driver for 74x164 compatible serial-in/parallel-out
 667           8-outputs shift registers. This driver can be used to provide access
 668           to more gpio outputs.
 669
 670 comment "AC97 GPIO expanders:"
 671
 672 config GPIO_UCB1400
 673         bool "Philips UCB1400 GPIO"
 674         depends on UCB1400_CORE
 675         help
 676           This enables support for the Philips UCB1400 GPIO pins.
 677           The UCB1400 is an AC97 audio codec.
 678
 679 comment "MODULbus GPIO expanders:"
 680
 681 config GPIO_JANZ_TTL
 682         tristate "Janz VMOD-TTL Digital IO Module"
 683         depends on MFD_JANZ_CMODIO
 684         help
 685           This enables support for the Janz VMOD-TTL Digital IO module.
 686           This driver provides support for driving the pins in output
 687           mode only. Input mode is not supported.
 688
 689 config GPIO_PALMAS
 690         bool "TI PALMAS series PMICs GPIO"
 691         depends on MFD_PALMAS
 692         help
 693           Select this option to enable GPIO driver for the TI PALMAS
 694           series chip family.
 695
 696 config GPIO_TPS6586X
 697         bool "TPS6586X GPIO"
 698         depends on MFD_TPS6586X
 699         help
 700           Select this option to enable GPIO driver for the TPS6586X
 701           chip family.
 702
 703 config GPIO_TPS65910
 704         bool "TPS65910 GPIO"
 705         depends on MFD_TPS65910
 706         help
 707           Select this option to enable GPIO driver for the TPS65910
 708           chip family.
 709
 710 config GPIO_MSIC
 711         bool "Intel MSIC mixed signal gpio support"
 712         depends on MFD_INTEL_MSIC
 713         help
 714           Enable support for GPIO on intel MSIC controllers found in
 715           intel MID devices
 716
 717 comment "USB GPIO expanders:"
 718
 719 config GPIO_VIPERBOARD
 720         tristate "Viperboard GPIO a & b support"
 721         depends on MFD_VIPERBOARD && USB
 722         help
 723           Say yes here to access the GPIO signals of Nano River
 724           Technologies Viperboard. There are two GPIO chips on the
 725           board: gpioa and gpiob.
 726           See viperboard API specification and Nano
 727           River Tech's viperboard.h for detailed meaning
 728           of the module parameters.
 729
 730 endif