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 IRQ_DOMAIN
 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_LP3943
 461         tristate "TI/National Semiconductor LP3943 GPIO expander"
 462         depends on MFD_LP3943
 463         help
 464           GPIO driver for LP3943 MFD.
 465           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 466           Open drain outputs are required for this usage.
 467
 468 config GPIO_MAX7300
 469         tristate "Maxim MAX7300 GPIO expander"
 470         depends on I2C
 471         select GPIO_MAX730X
 472         help
 473           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 474
 475 config GPIO_MAX732X
 476         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 477         depends on I2C
 478         help
 479           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 480           Port Expanders. Each IO port on these chips has a fixed role of
 481           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 482           Input and Output (designed by 'P'). The combinations are listed
 483           below:
 484
 485           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 486                         max7322 (4I4O), max7323 (4P4O)
 487
 488           16 bits:      max7324 (8I8O), max7325 (8P8O),
 489                         max7326 (4I12O), max7327 (4P12O)
 490
 491           Board setup code must specify the model to use, and the start
 492           number for these GPIOs.
 493
 494 config GPIO_MAX732X_IRQ
 495         bool "Interrupt controller support for MAX732x"
 496         depends on GPIO_MAX732X=y
 497         help
 498           Say yes here to enable the max732x to be used as an interrupt
 499           controller. It requires the driver to be built in the kernel.
 500
 501 config GPIO_MC9S08DZ60
 502         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 503         depends on I2C=y && MACH_MX35_3DS
 504         help
 505           Select this to enable the MC9S08DZ60 GPIO driver
 506
 507 config GPIO_PCA953X
 508         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 509         depends on I2C
 510         help
 511           Say yes here to provide access to several register-oriented
 512           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 513           models include:
 514
 515           4 bits:       pca9536, pca9537
 516
 517           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 518                         pca9556, pca9557, pca9574, tca6408, xra1202
 519
 520           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 521                         tca6416
 522
 523           24 bits:      tca6424
 524
 525           40 bits:      pca9505, pca9698
 526
 527 config GPIO_PCA953X_IRQ
 528         bool "Interrupt controller support for PCA953x"
 529         depends on GPIO_PCA953X=y
 530         select GPIOLIB_IRQCHIP
 531         help
 532           Say yes here to enable the pca953x to be used as an interrupt
 533           controller. It requires the driver to be built in the kernel.
 534
 535 config GPIO_PCF857X
 536         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 537         depends on I2C
 538         select IRQ_DOMAIN
 539         help
 540           Say yes here to provide access to most "quasi-bidirectional" I2C
 541           GPIO expanders used for additional digital outputs or inputs.
 542           Most of these parts are from NXP, though TI is a second source for
 543           some of them.  Compatible models include:
 544
 545           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 546                     pca9670, pca9672, pca9674, pca9674a,
 547                     max7328, max7329
 548
 549           16 bits:  pcf8575, pcf8575c, pca8575,
 550                     pca9671, pca9673, pca9675
 551
 552           Your board setup code will need to declare the expanders in
 553           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 554           can then be used from drivers and other kernel code, just like
 555           other GPIOs, but only accessible from task contexts.
 556
 557           This driver provides an in-kernel interface to those GPIOs using
 558           platform-neutral GPIO calls.
 559
 560 config GPIO_RC5T583
 561         bool "RICOH RC5T583 GPIO"
 562         depends on MFD_RC5T583
 563         help
 564           Select this option to enable GPIO driver for the Ricoh RC5T583
 565           chip family.
 566           This driver provides the support for driving/reading the gpio pins
 567           of RC5T583 device through standard gpio library.
 568
 569 config GPIO_SX150X
 570         bool "Semtech SX150x I2C GPIO expander"
 571         depends on I2C=y
 572         default n
 573         help
 574           Say yes here to provide support for Semtech SX150-series I2C
 575           GPIO expanders. Compatible models include:
 576
 577           8 bits:  sx1508q
 578           16 bits: sx1509q
 579
 580 config GPIO_STMPE
 581         bool "STMPE GPIOs"
 582         depends on MFD_STMPE
 583         select GPIOLIB_IRQCHIP
 584         help
 585           This enables support for the GPIOs found on the STMPE I/O
 586           Expanders.
 587
 588 config GPIO_STP_XWAY
 589         bool "XWAY STP GPIOs"
 590         depends on SOC_XWAY
 591         help
 592           This enables support for the Serial To Parallel (STP) unit found on
 593           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 594           that can be up to 24 bit. This peripheral is aimed at driving leds.
 595           Some of the gpios/leds can be auto updated by the soc with dsl and
 596           phy status.
 597
 598 config GPIO_TC3589X
 599         bool "TC3589X GPIOs"
 600         depends on MFD_TC3589X
 601         select GPIOLIB_IRQCHIP
 602         help
 603           This enables support for the GPIOs found on the TC3589X
 604           I/O Expander.
 605
 606 config GPIO_TPS65912
 607         tristate "TI TPS65912 GPIO"
 608         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 609         help
 610           This driver supports TPS65912 gpio chip
 611
 612 config GPIO_TWL4030
 613         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 614         depends on TWL4030_CORE
 615         help
 616           Say yes here to access the GPIO signals of various multi-function
 617           power management chips from Texas Instruments.
 618
 619 config GPIO_TWL6040
 620         tristate "TWL6040 GPO"
 621         depends on TWL6040_CORE
 622         help
 623           Say yes here to access the GPO signals of twl6040
 624           audio chip from Texas Instruments.
 625
 626 config GPIO_WM831X
 627         tristate "WM831x GPIOs"
 628         depends on MFD_WM831X
 629         help
 630           Say yes here to access the GPIO signals of WM831x power management
 631           chips from Wolfson Microelectronics.
 632
 633 config GPIO_WM8350
 634         tristate "WM8350 GPIOs"
 635         depends on MFD_WM8350
 636         help
 637           Say yes here to access the GPIO signals of WM8350 power management
 638           chips from Wolfson Microelectronics.
 639
 640 config GPIO_WM8994
 641         tristate "WM8994 GPIOs"
 642         depends on MFD_WM8994
 643         help
 644           Say yes here to access the GPIO signals of WM8994 audio hub
 645           CODECs from Wolfson Microelectronics.
 646
 647 config GPIO_ADP5520
 648         tristate "GPIO Support for ADP5520 PMIC"
 649         depends on PMIC_ADP5520
 650         help
 651           This option enables support for on-chip GPIO found
 652           on Analog Devices ADP5520 PMICs.
 653
 654 config GPIO_ADP5588
 655         tristate "ADP5588 I2C GPIO expander"
 656         depends on I2C
 657         help
 658           This option enables support for 18 GPIOs found
 659           on Analog Devices ADP5588 GPIO Expanders.
 660
 661 config GPIO_ADP5588_IRQ
 662         bool "Interrupt controller support for ADP5588"
 663         depends on GPIO_ADP5588=y
 664         help
 665           Say yes here to enable the adp5588 to be used as an interrupt
 666           controller. It requires the driver to be built in the kernel.
 667
 668 config GPIO_ADNP
 669         tristate "Avionic Design N-bit GPIO expander"
 670         depends on I2C && OF_GPIO
 671         help
 672           This option enables support for N GPIOs found on Avionic Design
 673           I2C GPIO expanders. The register space will be extended by powers
 674           of two, so the controller will need to accommodate for that. For
 675           example: if a controller provides 48 pins, 6 registers will be
 676           enough to represent all pins, but the driver will assume a
 677           register layout for 64 pins (8 registers).
 678
 679 comment "PCI GPIO expanders:"
 680
 681 config GPIO_CS5535
 682         tristate "AMD CS5535/CS5536 GPIO support"
 683         depends on MFD_CS5535
 684         help
 685           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 686           can be used for quite a number of things.  The CS5535/6 is found on
 687           AMD Geode and Lemote Yeeloong devices.
 688
 689           If unsure, say N.
 690
 691 config GPIO_BT8XX
 692         tristate "BT8XX GPIO abuser"
 693         depends on PCI && VIDEO_BT848=n
 694         help
 695           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 696           as a cheap PCI GPIO card.
 697
 698           This chip can be found on Miro, Hauppauge and STB TV-cards.
 699
 700           The card needs to be physically altered for using it as a
 701           GPIO card. For more information on how to build a GPIO card
 702           from a BT8xx TV card, see the documentation file at
 703           Documentation/bt8xxgpio.txt
 704
 705           If unsure, say N.
 706
 707 config GPIO_AMD8111
 708         tristate "AMD 8111 GPIO driver"
 709         depends on PCI
 710         help
 711           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 712
 713           Note, that usually system firmware/ACPI handles GPIO pins on their
 714           own and users might easily break their systems with uncarefull usage
 715           of this driver!
 716
 717           If unsure, say N
 718
 719 config GPIO_INTEL_MID
 720         bool "Intel Mid GPIO support"
 721         depends on PCI && X86
 722         select GPIOLIB_IRQCHIP
 723         help
 724           Say Y here to support Intel Mid GPIO.
 725
 726 config GPIO_PCH
 727         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 728         depends on PCI && (X86_32 || COMPILE_TEST)
 729         select GENERIC_IRQ_CHIP
 730         help
 731           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 732           which is an IOH(Input/Output Hub) for x86 embedded processor.
 733           This driver can access PCH GPIO device.
 734
 735           This driver also can be used for LAPIS Semiconductor IOH(Input/
 736           Output Hub), ML7223 and ML7831.
 737           ML7223 IOH is for MP(Media Phone) use.
 738           ML7831 IOH is for general purpose use.
 739           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 740           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 741
 742 config GPIO_ML_IOH
 743         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 744         depends on PCI
 745         select GENERIC_IRQ_CHIP
 746         help
 747           ML7213 is companion chip for Intel Atom E6xx series.
 748           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 749           Hub) which is for IVI(In-Vehicle Infotainment) use.
 750           This driver can access the IOH's GPIO device.
 751
 752 config GPIO_SODAVILLE
 753         bool "Intel Sodaville GPIO support"
 754         depends on X86 && PCI && OF
 755         select GPIO_GENERIC
 756         select GENERIC_IRQ_CHIP
 757         help
 758           Say Y here to support Intel Sodaville GPIO.
 759
 760 config GPIO_TIMBERDALE
 761         bool "Support for timberdale GPIO IP"
 762         depends on MFD_TIMBERDALE
 763         ---help---
 764         Add support for the GPIO IP in the timberdale FPGA.
 765
 766 config GPIO_RDC321X
 767         tristate "RDC R-321x GPIO support"
 768         depends on PCI
 769         select MFD_CORE
 770         select MFD_RDC321X
 771         help
 772           Support for the RDC R321x SoC GPIOs over southbridge
 773           PCI configuration space.
 774
 775 comment "SPI GPIO expanders:"
 776
 777 config GPIO_MAX7301
 778         tristate "Maxim MAX7301 GPIO expander"
 779         depends on SPI_MASTER
 780         select GPIO_MAX730X
 781         help
 782           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 783
 784 config GPIO_MCP23S08
 785         tristate "Microchip MCP23xxx I/O expander"
 786         depends on OF_GPIO
 787         depends on (SPI_MASTER && !I2C) || I2C
 788         help
 789           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 790           I/O expanders.
 791           This provides a GPIO interface supporting inputs and outputs.
 792           The I2C versions of the chips can be used as interrupt-controller.
 793
 794 config GPIO_MC33880
 795         tristate "Freescale MC33880 high-side/low-side switch"
 796         depends on SPI_MASTER
 797         help
 798           SPI driver for Freescale MC33880 high-side/low-side switch.
 799           This provides GPIO interface supporting inputs and outputs.
 800
 801 config GPIO_74X164
 802         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 803         depends on SPI_MASTER && OF
 804         help
 805           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 806           shift registers. This driver can be used to provide access
 807           to more gpio outputs.
 808
 809 comment "AC97 GPIO expanders:"
 810
 811 config GPIO_UCB1400
 812         tristate "Philips UCB1400 GPIO"
 813         depends on UCB1400_CORE
 814         help
 815           This enables support for the Philips UCB1400 GPIO pins.
 816           The UCB1400 is an AC97 audio codec.
 817
 818 comment "LPC GPIO expanders:"
 819
 820 config GPIO_KEMPLD
 821         tristate "Kontron ETX / COMexpress GPIO"
 822         depends on MFD_KEMPLD
 823         help
 824           This enables support for the PLD GPIO interface on some Kontron ETX
 825           and COMexpress (ETXexpress) modules.
 826
 827           This driver can also be built as a module. If so, the module will be
 828           called gpio-kempld.
 829
 830 comment "MODULbus GPIO expanders:"
 831
 832 config GPIO_JANZ_TTL
 833         tristate "Janz VMOD-TTL Digital IO Module"
 834         depends on MFD_JANZ_CMODIO
 835         help
 836           This enables support for the Janz VMOD-TTL Digital IO module.
 837           This driver provides support for driving the pins in output
 838           mode only. Input mode is not supported.
 839
 840 config GPIO_PALMAS
 841         bool "TI PALMAS series PMICs GPIO"
 842         depends on MFD_PALMAS
 843         help
 844           Select this option to enable GPIO driver for the TI PALMAS
 845           series chip family.
 846
 847 config GPIO_TPS6586X
 848         bool "TPS6586X GPIO"
 849         depends on MFD_TPS6586X
 850         help
 851           Select this option to enable GPIO driver for the TPS6586X
 852           chip family.
 853
 854 config GPIO_TPS65910
 855         bool "TPS65910 GPIO"
 856         depends on MFD_TPS65910
 857         help
 858           Select this option to enable GPIO driver for the TPS65910
 859           chip family.
 860
 861 config GPIO_MSIC
 862         bool "Intel MSIC mixed signal gpio support"
 863         depends on MFD_INTEL_MSIC
 864         help
 865           Enable support for GPIO on intel MSIC controllers found in
 866           intel MID devices
 867
 868 config GPIO_BCM_KONA
 869         bool "Broadcom Kona GPIO"
 870         depends on OF_GPIO
 871         help
 872           Turn on GPIO support for Broadcom "Kona" chips.
 873
 874 comment "USB GPIO expanders:"
 875
 876 config GPIO_VIPERBOARD
 877         tristate "Viperboard GPIO a & b support"
 878         depends on MFD_VIPERBOARD && USB
 879         help
 880           Say yes here to access the GPIO signals of Nano River
 881           Technologies Viperboard. There are two GPIO chips on the
 882           board: gpioa and gpiob.
 883           See viperboard API specification and Nano
 884           River Tech's viperboard.h for detailed meaning
 885           of the module parameters.
 886
 887 endif