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 config GPIO_DA9052
  94         tristate "Dialog DA9052 GPIO"
  95         depends on PMIC_DA9052
  96         help
  97           Say yes here to enable the GPIO driver for the DA9052 chip.
  98
  99 config GPIO_DA9055
 100         tristate "Dialog Semiconductor DA9055 GPIO"
 101         depends on MFD_DA9055
 102         help
 103           Say yes here to enable the GPIO driver for the DA9055 chip.
 104
 105           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 106           be controller by this driver.
 107
 108           If driver is built as a module it will be called gpio-da9055.
 109
 110 config GPIO_MAX730X
 111         tristate
 112
 113 comment "Memory mapped GPIO drivers:"
 114
 115 config GPIO_CLPS711X
 116         tristate "CLPS711X GPIO support"
 117         depends on ARCH_CLPS711X || COMPILE_TEST
 118         select GPIO_GENERIC
 119         help
 120           Say yes here to support GPIO on CLPS711X SoCs.
 121
 122 config GPIO_DAVINCI
 123         bool "TI Davinci/Keystone GPIO support"
 124         default y if ARCH_DAVINCI
 125         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 126         help
 127           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 128
 129 config GPIO_GENERIC_PLATFORM
 130         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 131         select GPIO_GENERIC
 132         help
 133           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 134
 135 config GPIO_DWAPB
 136         tristate "Synopsys DesignWare APB GPIO driver"
 137         select GPIO_GENERIC
 138         select GENERIC_IRQ_CHIP
 139         depends on OF_GPIO
 140         help
 141           Say Y or M here to build support for the Synopsys DesignWare APB
 142           GPIO block.
 143
 144 config GPIO_IT8761E
 145         tristate "IT8761E GPIO support"
 146         depends on X86  # unconditional access to IO space.
 147         help
 148           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 149
 150 config GPIO_EM
 151         tristate "Emma Mobile GPIO"
 152         depends on ARM && OF_GPIO
 153         help
 154           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 155
 156 config GPIO_EP93XX
 157         def_bool y
 158         depends on ARCH_EP93XX
 159         select GPIO_GENERIC
 160
 161 config GPIO_ZEVIO
 162         bool "LSI ZEVIO SoC memory mapped GPIOs"
 163         depends on ARM && OF_GPIO
 164         help
 165           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 166
 167 config GPIO_MM_LANTIQ
 168         bool "Lantiq Memory mapped GPIOs"
 169         depends on LANTIQ && SOC_XWAY
 170         help
 171           This enables support for memory mapped GPIOs on the External Bus Unit
 172           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 173           created by attaching a 16bit latch to the bus.
 174
 175 config GPIO_F7188X
 176         tristate "F71882FG and F71889F GPIO support"
 177         depends on X86
 178         help
 179           This option enables support for GPIOs found on Fintek Super-I/O
 180           chips F71882FG and F71889F.
 181
 182           To compile this driver as a module, choose M here: the module will
 183           be called f7188x-gpio.
 184
 185 config GPIO_MOXART
 186         bool "MOXART GPIO support"
 187         depends on ARCH_MOXART
 188         help
 189           Select this option to enable GPIO driver for
 190           MOXA ART SoC devices.
 191
 192 config GPIO_MPC5200
 193         def_bool y
 194         depends on PPC_MPC52xx
 195
 196 config GPIO_MPC8XXX
 197         bool "MPC512x/MPC8xxx GPIO support"
 198         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 199                    FSL_SOC_BOOKE || PPC_86xx
 200         help
 201           Say Y here if you're going to use hardware that connects to the
 202           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 203
 204 config GPIO_MSM_V1
 205         tristate "Qualcomm MSM GPIO v1"
 206         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 207         help
 208           Say yes here to support the GPIO interface on ARM v6 based
 209           Qualcomm MSM chips.  Most of the pins on the MSM can be
 210           selected for GPIO, and are controlled by this driver.
 211
 212 config GPIO_MSM_V2
 213         tristate "Qualcomm MSM GPIO v2"
 214         depends on GPIOLIB && OF && ARCH_QCOM
 215         help
 216           Say yes here to support the GPIO interface on ARM v7 based
 217           Qualcomm MSM chips.  Most of the pins on the MSM can be
 218           selected for GPIO, and are controlled by this driver.
 219
 220 config GPIO_MVEBU
 221         def_bool y
 222         depends on PLAT_ORION
 223         depends on OF
 224         select GPIO_GENERIC
 225         select GENERIC_IRQ_CHIP
 226
 227 config GPIO_MXC
 228         def_bool y
 229         depends on ARCH_MXC
 230         select GPIO_GENERIC
 231         select GENERIC_IRQ_CHIP
 232
 233 config GPIO_MXS
 234         def_bool y
 235         depends on ARCH_MXS
 236         select GPIO_GENERIC
 237         select GENERIC_IRQ_CHIP
 238
 239 config GPIO_OCTEON
 240         tristate "Cavium OCTEON GPIO"
 241         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 242         default y
 243         help
 244           Say yes here to support the on-chip GPIO lines on the OCTEON
 245           family of SOCs.
 246
 247 config GPIO_OMAP
 248         bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
 249         default y if ARCH_OMAP
 250         depends on ARM
 251         select GENERIC_IRQ_CHIP
 252         select GPIOLIB_IRQCHIP
 253         help
 254           Say yes here to enable GPIO support for TI OMAP SoCs.
 255
 256 config GPIO_PL061
 257         bool "PrimeCell PL061 GPIO support"
 258         depends on ARM_AMBA
 259         select IRQ_DOMAIN
 260         select GPIOLIB_IRQCHIP
 261         help
 262           Say yes here to support the PrimeCell PL061 GPIO device
 263
 264 config GPIO_PXA
 265         bool "PXA GPIO support"
 266         depends on ARCH_PXA || ARCH_MMP
 267         help
 268           Say yes here to support the PXA GPIO device
 269
 270 config GPIO_RCAR
 271         tristate "Renesas R-Car GPIO"
 272         depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
 273         help
 274           Say yes here to support GPIO on Renesas R-Car SoCs.
 275
 276 config GPIO_SAMSUNG
 277         bool
 278         depends on PLAT_SAMSUNG
 279         help
 280           Legacy GPIO support. Use only for platforms without support for
 281           pinctrl.
 282
 283 config GPIO_SCH311X
 284         tristate "SMSC SCH311x SuperI/O GPIO"
 285         help
 286           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 287           SCH3116 "Super I/O" chipsets.
 288
 289           To compile this driver as a module, choose M here: the module will
 290           be called gpio-sch311x.
 291
 292 config GPIO_SPEAR_SPICS
 293         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 294         depends on PLAT_SPEAR
 295         select GENERIC_IRQ_CHIP
 296         help
 297           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 298
 299 config GPIO_STA2X11
 300         bool "STA2x11/ConneXt GPIO support"
 301         depends on MFD_STA2X11
 302         select GENERIC_IRQ_CHIP
 303         help
 304           Say yes here to support the STA2x11/ConneXt GPIO device.
 305           The GPIO module has 128 GPIO pins with alternate functions.
 306
 307 config GPIO_SYSCON
 308         tristate "GPIO based on SYSCON"
 309         depends on MFD_SYSCON && OF
 310         help
 311           Say yes here to support GPIO functionality though SYSCON driver.
 312
 313 config GPIO_TS5500
 314         tristate "TS-5500 DIO blocks and compatibles"
 315         depends on TS5500 || COMPILE_TEST
 316         help
 317           This driver supports Digital I/O exposed by pin blocks found on some
 318           Technologic Systems platforms. It includes, but is not limited to, 3
 319           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 320           LCD port.
 321
 322 config GPIO_TZ1090
 323         bool "Toumaz Xenif TZ1090 GPIO support"
 324         depends on SOC_TZ1090
 325         select GENERIC_IRQ_CHIP
 326         default y
 327         help
 328           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 329
 330 config GPIO_TZ1090_PDC
 331         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 332         depends on SOC_TZ1090
 333         default y
 334         help
 335           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 336
 337 config GPIO_XILINX
 338         bool "Xilinx GPIO support"
 339         depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
 340         help
 341           Say yes here to support the Xilinx FPGA GPIO device
 342
 343 config GPIO_ZYNQ
 344         tristate "Xilinx Zynq GPIO support"
 345         depends on ARCH_ZYNQ
 346         select GPIOLIB_IRQCHIP
 347         help
 348           Say yes here to support Xilinx Zynq GPIO controller.
 349
 350 config GPIO_XTENSA
 351         bool "Xtensa GPIO32 support"
 352         depends on XTENSA
 353         depends on HAVE_XTENSA_GPIO32
 354         depends on !SMP
 355         help
 356           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 357           and EXPSTATE (output) ports
 358
 359 config GPIO_VR41XX
 360         tristate "NEC VR4100 series General-purpose I/O Uint support"
 361         depends on CPU_VR41XX
 362         help
 363           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 364
 365 config GPIO_SCH
 366         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 367         depends on PCI && X86
 368         select MFD_CORE
 369         select LPC_SCH
 370         help
 371           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 372           Intel Tunnel Creek processor or Intel Centerton processor.
 373           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 374           powered by the core power rail and are turned off during sleep
 375           modes (S3 and higher). The remaining four GPIOs are powered by
 376           the Intel SCH suspend power supply. These GPIOs remain
 377           active during S3. The suspend powered GPIOs can be used to wake the
 378           system from the Suspend-to-RAM state.
 379           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 380           core power rail and 9 from suspend power supply.
 381           The Intel Centerton processor has a total of 30 GPIO pins.
 382           Twenty-one are powered by the core power rail and 9 from the
 383           suspend power supply.
 384
 385 config GPIO_ICH
 386         tristate "Intel ICH GPIO"
 387         depends on PCI && X86
 388         select MFD_CORE
 389         select LPC_ICH
 390         help
 391           Say yes here to support the GPIO functionality of a number of Intel
 392           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 393           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 394           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 395
 396           If unsure, say N.
 397
 398 config GPIO_IOP
 399         tristate "Intel IOP GPIO"
 400         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 401         help
 402           Say yes here to support the GPIO functionality of a number of Intel
 403           IOP32X or IOP33X.
 404
 405           If unsure, say N.
 406
 407 config GPIO_VX855
 408         tristate "VIA VX855/VX875 GPIO"
 409         depends on PCI
 410         select MFD_CORE
 411         select MFD_VX855
 412         help
 413           Support access to the VX855/VX875 GPIO lines through the gpio library.
 414
 415           This driver provides common support for accessing the device,
 416           additional drivers must be enabled in order to use the
 417           functionality of the device.
 418
 419 config GPIO_GE_FPGA
 420         bool "GE FPGA based GPIO"
 421         depends on GE_FPGA
 422         help
 423           Support for common GPIO functionality provided on some GE Single Board
 424           Computers.
 425
 426           This driver provides basic support (configure as input or output, read
 427           and write pin state) for GPIO implemented in a number of GE single
 428           board computers.
 429
 430 config GPIO_LYNXPOINT
 431         tristate "Intel Lynxpoint GPIO support"
 432         depends on ACPI && X86
 433         select GPIOLIB_IRQCHIP
 434         help
 435           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 436           Requires ACPI device enumeration code to set up a platform device.
 437
 438 config GPIO_GRGPIO
 439         tristate "Aeroflex Gaisler GRGPIO support"
 440         depends on OF
 441         select GPIO_GENERIC
 442         select IRQ_DOMAIN
 443         help
 444           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 445           VHDL IP core library.
 446
 447 config GPIO_TB10X
 448         bool
 449         select GENERIC_IRQ_CHIP
 450         select OF_GPIO
 451
 452 comment "I2C GPIO expanders:"
 453
 454 config GPIO_ARIZONA
 455         tristate "Wolfson Microelectronics Arizona class devices"
 456         depends on MFD_ARIZONA
 457         help
 458           Support for GPIOs on Wolfson Arizona class devices.
 459
 460 config GPIO_CRYSTAL_COVE
 461         tristate "GPIO support for Crystal Cove PMIC"
 462         depends on INTEL_SOC_PMIC
 463         select GPIOLIB_IRQCHIP
 464         help
 465           Support for GPIO pins on Crystal Cove PMIC.
 466
 467           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 468           inside.
 469
 470           This driver can also be built as a module. If so, the module will be
 471           called gpio-crystalcove.
 472
 473 config GPIO_LP3943
 474         tristate "TI/National Semiconductor LP3943 GPIO expander"
 475         depends on MFD_LP3943
 476         help
 477           GPIO driver for LP3943 MFD.
 478           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 479           Open drain outputs are required for this usage.
 480
 481 config GPIO_MAX7300
 482         tristate "Maxim MAX7300 GPIO expander"
 483         depends on I2C
 484         select GPIO_MAX730X
 485         help
 486           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 487
 488 config GPIO_MAX732X
 489         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 490         depends on I2C
 491         help
 492           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 493           Port Expanders. Each IO port on these chips has a fixed role of
 494           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 495           Input and Output (designed by 'P'). The combinations are listed
 496           below:
 497
 498           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 499                         max7322 (4I4O), max7323 (4P4O)
 500
 501           16 bits:      max7324 (8I8O), max7325 (8P8O),
 502                         max7326 (4I12O), max7327 (4P12O)
 503
 504           Board setup code must specify the model to use, and the start
 505           number for these GPIOs.
 506
 507 config GPIO_MAX732X_IRQ
 508         bool "Interrupt controller support for MAX732x"
 509         depends on GPIO_MAX732X=y
 510         help
 511           Say yes here to enable the max732x to be used as an interrupt
 512           controller. It requires the driver to be built in the kernel.
 513
 514 config GPIO_MC9S08DZ60
 515         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 516         depends on I2C=y && MACH_MX35_3DS
 517         help
 518           Select this to enable the MC9S08DZ60 GPIO driver
 519
 520 config GPIO_PCA953X
 521         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 522         depends on I2C
 523         help
 524           Say yes here to provide access to several register-oriented
 525           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 526           models include:
 527
 528           4 bits:       pca9536, pca9537
 529
 530           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 531                         pca9556, pca9557, pca9574, tca6408, xra1202
 532
 533           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 534                         tca6416
 535
 536           24 bits:      tca6424
 537
 538           40 bits:      pca9505, pca9698
 539
 540 config GPIO_PCA953X_IRQ
 541         bool "Interrupt controller support for PCA953x"
 542         depends on GPIO_PCA953X=y
 543         select GPIOLIB_IRQCHIP
 544         help
 545           Say yes here to enable the pca953x to be used as an interrupt
 546           controller. It requires the driver to be built in the kernel.
 547
 548 config GPIO_PCF857X
 549         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 550         depends on I2C
 551         select IRQ_DOMAIN
 552         help
 553           Say yes here to provide access to most "quasi-bidirectional" I2C
 554           GPIO expanders used for additional digital outputs or inputs.
 555           Most of these parts are from NXP, though TI is a second source for
 556           some of them.  Compatible models include:
 557
 558           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 559                     pca9670, pca9672, pca9674, pca9674a,
 560                     max7328, max7329
 561
 562           16 bits:  pcf8575, pcf8575c, pca8575,
 563                     pca9671, pca9673, pca9675
 564
 565           Your board setup code will need to declare the expanders in
 566           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 567           can then be used from drivers and other kernel code, just like
 568           other GPIOs, but only accessible from task contexts.
 569
 570           This driver provides an in-kernel interface to those GPIOs using
 571           platform-neutral GPIO calls.
 572
 573 config GPIO_RC5T583
 574         bool "RICOH RC5T583 GPIO"
 575         depends on MFD_RC5T583
 576         help
 577           Select this option to enable GPIO driver for the Ricoh RC5T583
 578           chip family.
 579           This driver provides the support for driving/reading the gpio pins
 580           of RC5T583 device through standard gpio library.
 581
 582 config GPIO_SX150X
 583         bool "Semtech SX150x I2C GPIO expander"
 584         depends on I2C=y
 585         default n
 586         help
 587           Say yes here to provide support for Semtech SX150-series I2C
 588           GPIO expanders. Compatible models include:
 589
 590           8 bits:  sx1508q
 591           16 bits: sx1509q
 592
 593 config GPIO_STMPE
 594         bool "STMPE GPIOs"
 595         depends on MFD_STMPE
 596         select GPIOLIB_IRQCHIP
 597         help
 598           This enables support for the GPIOs found on the STMPE I/O
 599           Expanders.
 600
 601 config GPIO_STP_XWAY
 602         bool "XWAY STP GPIOs"
 603         depends on SOC_XWAY
 604         help
 605           This enables support for the Serial To Parallel (STP) unit found on
 606           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 607           that can be up to 24 bit. This peripheral is aimed at driving leds.
 608           Some of the gpios/leds can be auto updated by the soc with dsl and
 609           phy status.
 610
 611 config GPIO_TC3589X
 612         bool "TC3589X GPIOs"
 613         depends on MFD_TC3589X
 614         select GPIOLIB_IRQCHIP
 615         help
 616           This enables support for the GPIOs found on the TC3589X
 617           I/O Expander.
 618
 619 config GPIO_TPS65912
 620         tristate "TI TPS65912 GPIO"
 621         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 622         help
 623           This driver supports TPS65912 gpio chip
 624
 625 config GPIO_TWL4030
 626         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 627         depends on TWL4030_CORE
 628         help
 629           Say yes here to access the GPIO signals of various multi-function
 630           power management chips from Texas Instruments.
 631
 632 config GPIO_TWL6040
 633         tristate "TWL6040 GPO"
 634         depends on TWL6040_CORE
 635         help
 636           Say yes here to access the GPO signals of twl6040
 637           audio chip from Texas Instruments.
 638
 639 config GPIO_WM831X
 640         tristate "WM831x GPIOs"
 641         depends on MFD_WM831X
 642         help
 643           Say yes here to access the GPIO signals of WM831x power management
 644           chips from Wolfson Microelectronics.
 645
 646 config GPIO_WM8350
 647         tristate "WM8350 GPIOs"
 648         depends on MFD_WM8350
 649         help
 650           Say yes here to access the GPIO signals of WM8350 power management
 651           chips from Wolfson Microelectronics.
 652
 653 config GPIO_WM8994
 654         tristate "WM8994 GPIOs"
 655         depends on MFD_WM8994
 656         help
 657           Say yes here to access the GPIO signals of WM8994 audio hub
 658           CODECs from Wolfson Microelectronics.
 659
 660 config GPIO_ADP5520
 661         tristate "GPIO Support for ADP5520 PMIC"
 662         depends on PMIC_ADP5520
 663         help
 664           This option enables support for on-chip GPIO found
 665           on Analog Devices ADP5520 PMICs.
 666
 667 config GPIO_ADP5588
 668         tristate "ADP5588 I2C GPIO expander"
 669         depends on I2C
 670         help
 671           This option enables support for 18 GPIOs found
 672           on Analog Devices ADP5588 GPIO Expanders.
 673
 674 config GPIO_ADP5588_IRQ
 675         bool "Interrupt controller support for ADP5588"
 676         depends on GPIO_ADP5588=y
 677         help
 678           Say yes here to enable the adp5588 to be used as an interrupt
 679           controller. It requires the driver to be built in the kernel.
 680
 681 config GPIO_ADNP
 682         tristate "Avionic Design N-bit GPIO expander"
 683         depends on I2C && OF_GPIO
 684         help
 685           This option enables support for N GPIOs found on Avionic Design
 686           I2C GPIO expanders. The register space will be extended by powers
 687           of two, so the controller will need to accommodate for that. For
 688           example: if a controller provides 48 pins, 6 registers will be
 689           enough to represent all pins, but the driver will assume a
 690           register layout for 64 pins (8 registers).
 691
 692 comment "PCI GPIO expanders:"
 693
 694 config GPIO_CS5535
 695         tristate "AMD CS5535/CS5536 GPIO support"
 696         depends on MFD_CS5535
 697         help
 698           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 699           can be used for quite a number of things.  The CS5535/6 is found on
 700           AMD Geode and Lemote Yeeloong devices.
 701
 702           If unsure, say N.
 703
 704 config GPIO_BT8XX
 705         tristate "BT8XX GPIO abuser"
 706         depends on PCI && VIDEO_BT848=n
 707         help
 708           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 709           as a cheap PCI GPIO card.
 710
 711           This chip can be found on Miro, Hauppauge and STB TV-cards.
 712
 713           The card needs to be physically altered for using it as a
 714           GPIO card. For more information on how to build a GPIO card
 715           from a BT8xx TV card, see the documentation file at
 716           Documentation/bt8xxgpio.txt
 717
 718           If unsure, say N.
 719
 720 config GPIO_AMD8111
 721         tristate "AMD 8111 GPIO driver"
 722         depends on PCI
 723         help
 724           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 725
 726           Note, that usually system firmware/ACPI handles GPIO pins on their
 727           own and users might easily break their systems with uncarefull usage
 728           of this driver!
 729
 730           If unsure, say N
 731
 732 config GPIO_INTEL_MID
 733         bool "Intel Mid GPIO support"
 734         depends on PCI && X86
 735         select GPIOLIB_IRQCHIP
 736         help
 737           Say Y here to support Intel Mid GPIO.
 738
 739 config GPIO_PCH
 740         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 741         depends on PCI && (X86_32 || COMPILE_TEST)
 742         select GENERIC_IRQ_CHIP
 743         help
 744           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 745           which is an IOH(Input/Output Hub) for x86 embedded processor.
 746           This driver can access PCH GPIO device.
 747
 748           This driver also can be used for LAPIS Semiconductor IOH(Input/
 749           Output Hub), ML7223 and ML7831.
 750           ML7223 IOH is for MP(Media Phone) use.
 751           ML7831 IOH is for general purpose use.
 752           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 753           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 754
 755 config GPIO_ML_IOH
 756         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 757         depends on PCI
 758         select GENERIC_IRQ_CHIP
 759         help
 760           ML7213 is companion chip for Intel Atom E6xx series.
 761           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 762           Hub) which is for IVI(In-Vehicle Infotainment) use.
 763           This driver can access the IOH's GPIO device.
 764
 765 config GPIO_SODAVILLE
 766         bool "Intel Sodaville GPIO support"
 767         depends on X86 && PCI && OF
 768         select GPIO_GENERIC
 769         select GENERIC_IRQ_CHIP
 770         help
 771           Say Y here to support Intel Sodaville GPIO.
 772
 773 config GPIO_TIMBERDALE
 774         bool "Support for timberdale GPIO IP"
 775         depends on MFD_TIMBERDALE
 776         ---help---
 777         Add support for the GPIO IP in the timberdale FPGA.
 778
 779 config GPIO_RDC321X
 780         tristate "RDC R-321x GPIO support"
 781         depends on PCI
 782         select MFD_CORE
 783         select MFD_RDC321X
 784         help
 785           Support for the RDC R321x SoC GPIOs over southbridge
 786           PCI configuration space.
 787
 788 comment "SPI GPIO expanders:"
 789
 790 config GPIO_MAX7301
 791         tristate "Maxim MAX7301 GPIO expander"
 792         depends on SPI_MASTER
 793         select GPIO_MAX730X
 794         help
 795           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 796
 797 config GPIO_MCP23S08
 798         tristate "Microchip MCP23xxx I/O expander"
 799         depends on OF_GPIO
 800         depends on (SPI_MASTER && !I2C) || I2C
 801         help
 802           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 803           I/O expanders.
 804           This provides a GPIO interface supporting inputs and outputs.
 805           The I2C versions of the chips can be used as interrupt-controller.
 806
 807 config GPIO_MC33880
 808         tristate "Freescale MC33880 high-side/low-side switch"
 809         depends on SPI_MASTER
 810         help
 811           SPI driver for Freescale MC33880 high-side/low-side switch.
 812           This provides GPIO interface supporting inputs and outputs.
 813
 814 config GPIO_74X164
 815         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 816         depends on SPI_MASTER && OF
 817         help
 818           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 819           shift registers. This driver can be used to provide access
 820           to more gpio outputs.
 821
 822 comment "AC97 GPIO expanders:"
 823
 824 config GPIO_UCB1400
 825         tristate "Philips UCB1400 GPIO"
 826         depends on UCB1400_CORE
 827         help
 828           This enables support for the Philips UCB1400 GPIO pins.
 829           The UCB1400 is an AC97 audio codec.
 830
 831 comment "LPC GPIO expanders:"
 832
 833 config GPIO_KEMPLD
 834         tristate "Kontron ETX / COMexpress GPIO"
 835         depends on MFD_KEMPLD
 836         help
 837           This enables support for the PLD GPIO interface on some Kontron ETX
 838           and COMexpress (ETXexpress) modules.
 839
 840           This driver can also be built as a module. If so, the module will be
 841           called gpio-kempld.
 842
 843 comment "MODULbus GPIO expanders:"
 844
 845 config GPIO_JANZ_TTL
 846         tristate "Janz VMOD-TTL Digital IO Module"
 847         depends on MFD_JANZ_CMODIO
 848         help
 849           This enables support for the Janz VMOD-TTL Digital IO module.
 850           This driver provides support for driving the pins in output
 851           mode only. Input mode is not supported.
 852
 853 config GPIO_PALMAS
 854         bool "TI PALMAS series PMICs GPIO"
 855         depends on MFD_PALMAS
 856         help
 857           Select this option to enable GPIO driver for the TI PALMAS
 858           series chip family.
 859
 860 config GPIO_TPS6586X
 861         bool "TPS6586X GPIO"
 862         depends on MFD_TPS6586X
 863         help
 864           Select this option to enable GPIO driver for the TPS6586X
 865           chip family.
 866
 867 config GPIO_TPS65910
 868         bool "TPS65910 GPIO"
 869         depends on MFD_TPS65910
 870         help
 871           Select this option to enable GPIO driver for the TPS65910
 872           chip family.
 873
 874 config GPIO_MSIC
 875         bool "Intel MSIC mixed signal gpio support"
 876         depends on MFD_INTEL_MSIC
 877         help
 878           Enable support for GPIO on intel MSIC controllers found in
 879           intel MID devices
 880
 881 config GPIO_BCM_KONA
 882         bool "Broadcom Kona GPIO"
 883         depends on OF_GPIO
 884         help
 885           Turn on GPIO support for Broadcom "Kona" chips.
 886
 887 comment "USB GPIO expanders:"
 888
 889 config GPIO_VIPERBOARD
 890         tristate "Viperboard GPIO a & b support"
 891         depends on MFD_VIPERBOARD && USB
 892         help
 893           Say yes here to access the GPIO signals of Nano River
 894           Technologies Viperboard. There are two GPIO chips on the
 895           board: gpioa and gpiob.
 896           See viperboard API specification and Nano
 897           River Tech's viperboard.h for detailed meaning
 898           of the module parameters.
 899
 900 endif