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_74XX_MMIO
 116         tristate "GPIO driver for 74xx-ICs with MMIO access"
 117         depends on OF_GPIO
 118         select GPIO_GENERIC
 119         help
 120           Say yes here to support GPIO functionality for 74xx-compatible ICs
 121           with MMIO access. Compatible models include:
 122             1 bit:      741G125 (Input), 741G74 (Output)
 123             2 bits:     742G125 (Input), 7474 (Output)
 124             4 bits:     74125 (Input), 74175 (Output)
 125             6 bits:     74365 (Input), 74174 (Output)
 126             8 bits:     74244 (Input), 74273 (Output)
 127             16 bits:    741624 (Input), 7416374 (Output)
 128
 129 config GPIO_CLPS711X
 130         tristate "CLPS711X GPIO support"
 131         depends on ARCH_CLPS711X || COMPILE_TEST
 132         select GPIO_GENERIC
 133         help
 134           Say yes here to support GPIO on CLPS711X SoCs.
 135
 136 config GPIO_DAVINCI
 137         bool "TI Davinci/Keystone GPIO support"
 138         default y if ARCH_DAVINCI
 139         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 140         help
 141           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 142
 143 config GPIO_GENERIC_PLATFORM
 144         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 145         select GPIO_GENERIC
 146         help
 147           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 148
 149 config GPIO_DWAPB
 150         tristate "Synopsys DesignWare APB GPIO driver"
 151         depends on ARM
 152         depends on OF_GPIO
 153         select GPIO_GENERIC
 154         select GENERIC_IRQ_CHIP
 155         help
 156           Say Y or M here to build support for the Synopsys DesignWare APB
 157           GPIO block.
 158
 159 config GPIO_IT8761E
 160         tristate "IT8761E GPIO support"
 161         depends on X86  # unconditional access to IO space.
 162         help
 163           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 164
 165 config GPIO_EM
 166         tristate "Emma Mobile GPIO"
 167         depends on ARM && OF_GPIO
 168         help
 169           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 170
 171 config GPIO_EP93XX
 172         def_bool y
 173         depends on ARCH_EP93XX
 174         select GPIO_GENERIC
 175
 176 config GPIO_ZEVIO
 177         bool "LSI ZEVIO SoC memory mapped GPIOs"
 178         depends on ARM && OF_GPIO
 179         help
 180           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 181
 182 config GPIO_MM_LANTIQ
 183         bool "Lantiq Memory mapped GPIOs"
 184         depends on LANTIQ && SOC_XWAY
 185         help
 186           This enables support for memory mapped GPIOs on the External Bus Unit
 187           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 188           created by attaching a 16bit latch to the bus.
 189
 190 config GPIO_F7188X
 191         tristate "F71882FG and F71889F GPIO support"
 192         depends on X86
 193         help
 194           This option enables support for GPIOs found on Fintek Super-I/O
 195           chips F71882FG and F71889F.
 196
 197           To compile this driver as a module, choose M here: the module will
 198           be called f7188x-gpio.
 199
 200 config GPIO_MB86S7X
 201         bool "GPIO support for Fujitsu MB86S7x Platforms"
 202         depends on ARCH_MB86S7X
 203         help
 204           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 205
 206 config GPIO_MOXART
 207         bool "MOXART GPIO support"
 208         depends on ARCH_MOXART
 209         select GPIO_GENERIC
 210         help
 211           Select this option to enable GPIO driver for
 212           MOXA ART SoC devices.
 213
 214 config GPIO_MPC5200
 215         def_bool y
 216         depends on PPC_MPC52xx
 217
 218 config GPIO_MPC8XXX
 219         bool "MPC512x/MPC8xxx GPIO support"
 220         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 221                    FSL_SOC_BOOKE || PPC_86xx
 222         help
 223           Say Y here if you're going to use hardware that connects to the
 224           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 225
 226 config GPIO_MSM_V1
 227         tristate "Qualcomm MSM GPIO v1"
 228         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 229         help
 230           Say yes here to support the GPIO interface on ARM v6 based
 231           Qualcomm MSM chips.  Most of the pins on the MSM can be
 232           selected for GPIO, and are controlled by this driver.
 233
 234 config GPIO_MSM_V2
 235         tristate "Qualcomm MSM GPIO v2"
 236         depends on GPIOLIB && OF && ARCH_QCOM
 237         help
 238           Say yes here to support the GPIO interface on ARM v7 based
 239           Qualcomm MSM chips.  Most of the pins on the MSM can be
 240           selected for GPIO, and are controlled by this driver.
 241
 242 config GPIO_MVEBU
 243         def_bool y
 244         depends on PLAT_ORION
 245         depends on OF
 246         select GPIO_GENERIC
 247         select GENERIC_IRQ_CHIP
 248
 249 config GPIO_MXC
 250         def_bool y
 251         depends on ARCH_MXC
 252         select GPIO_GENERIC
 253         select GENERIC_IRQ_CHIP
 254
 255 config GPIO_MXS
 256         def_bool y
 257         depends on ARCH_MXS
 258         select GPIO_GENERIC
 259         select GENERIC_IRQ_CHIP
 260
 261 config GPIO_OCTEON
 262         tristate "Cavium OCTEON GPIO"
 263         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 264         default y
 265         help
 266           Say yes here to support the on-chip GPIO lines on the OCTEON
 267           family of SOCs.
 268
 269 config GPIO_OMAP
 270         bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
 271         default y if ARCH_OMAP
 272         depends on ARM
 273         select GENERIC_IRQ_CHIP
 274         select GPIOLIB_IRQCHIP
 275         help
 276           Say yes here to enable GPIO support for TI OMAP SoCs.
 277
 278 config GPIO_PL061
 279         bool "PrimeCell PL061 GPIO support"
 280         depends on ARM_AMBA
 281         select IRQ_DOMAIN
 282         select GPIOLIB_IRQCHIP
 283         help
 284           Say yes here to support the PrimeCell PL061 GPIO device
 285
 286 config GPIO_PXA
 287         bool "PXA GPIO support"
 288         depends on ARCH_PXA || ARCH_MMP
 289         help
 290           Say yes here to support the PXA GPIO device
 291
 292 config GPIO_RCAR
 293         tristate "Renesas R-Car GPIO"
 294         depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
 295         select GPIOLIB_IRQCHIP
 296         help
 297           Say yes here to support GPIO on Renesas R-Car SoCs.
 298
 299 config GPIO_SAMSUNG
 300         bool
 301         depends on PLAT_SAMSUNG
 302         help
 303           Legacy GPIO support. Use only for platforms without support for
 304           pinctrl.
 305
 306 config GPIO_SCH311X
 307         tristate "SMSC SCH311x SuperI/O GPIO"
 308         help
 309           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 310           SCH3116 "Super I/O" chipsets.
 311
 312           To compile this driver as a module, choose M here: the module will
 313           be called gpio-sch311x.
 314
 315 config GPIO_SPEAR_SPICS
 316         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 317         depends on PLAT_SPEAR
 318         select GENERIC_IRQ_CHIP
 319         help
 320           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 321
 322 config GPIO_STA2X11
 323         bool "STA2x11/ConneXt GPIO support"
 324         depends on MFD_STA2X11
 325         select GENERIC_IRQ_CHIP
 326         help
 327           Say yes here to support the STA2x11/ConneXt GPIO device.
 328           The GPIO module has 128 GPIO pins with alternate functions.
 329
 330 config GPIO_SYSCON
 331         tristate "GPIO based on SYSCON"
 332         depends on MFD_SYSCON && OF
 333         help
 334           Say yes here to support GPIO functionality though SYSCON driver.
 335
 336 config GPIO_TS5500
 337         tristate "TS-5500 DIO blocks and compatibles"
 338         depends on TS5500 || COMPILE_TEST
 339         help
 340           This driver supports Digital I/O exposed by pin blocks found on some
 341           Technologic Systems platforms. It includes, but is not limited to, 3
 342           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 343           LCD port.
 344
 345 config GPIO_TZ1090
 346         bool "Toumaz Xenif TZ1090 GPIO support"
 347         depends on SOC_TZ1090
 348         select GENERIC_IRQ_CHIP
 349         default y
 350         help
 351           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 352
 353 config GPIO_TZ1090_PDC
 354         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 355         depends on SOC_TZ1090
 356         default y
 357         help
 358           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 359
 360 config GPIO_VF610
 361         def_bool y
 362         depends on ARCH_MXC && SOC_VF610
 363         select GPIOLIB_IRQCHIP
 364         help
 365           Say yes here to support Vybrid vf610 GPIOs.
 366
 367 config GPIO_XGENE
 368         bool "APM X-Gene GPIO controller support"
 369         depends on ARM64 && OF_GPIO
 370         help
 371           This driver is to support the GPIO block within the APM X-Gene SoC
 372           platform's generic flash controller. The GPIO pins are muxed with
 373           the generic flash controller's address and data pins. Say yes
 374           here to enable the GFC GPIO functionality.
 375
 376 config GPIO_XGENE_SB
 377         tristate "APM X-Gene GPIO standby controller support"
 378         depends on ARCH_XGENE && OF_GPIO
 379         select GPIO_GENERIC
 380         help
 381           This driver supports the GPIO block within the APM X-Gene
 382           Standby Domain. Say yes here to enable the GPIO functionality.
 383
 384 config GPIO_XILINX
 385         tristate "Xilinx GPIO support"
 386         depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
 387         help
 388           Say yes here to support the Xilinx FPGA GPIO device
 389
 390 config GPIO_ZYNQ
 391         tristate "Xilinx Zynq GPIO support"
 392         depends on ARCH_ZYNQ
 393         select GPIOLIB_IRQCHIP
 394         help
 395           Say yes here to support Xilinx Zynq GPIO controller.
 396
 397 config GPIO_XTENSA
 398         bool "Xtensa GPIO32 support"
 399         depends on XTENSA
 400         depends on HAVE_XTENSA_GPIO32
 401         depends on !SMP
 402         help
 403           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 404           and EXPSTATE (output) ports
 405
 406 config GPIO_VR41XX
 407         tristate "NEC VR4100 series General-purpose I/O Uint support"
 408         depends on CPU_VR41XX
 409         help
 410           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 411
 412 config GPIO_SCH
 413         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 414         depends on PCI && X86
 415         select MFD_CORE
 416         select LPC_SCH
 417         help
 418           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 419           Intel Tunnel Creek processor, Intel Centerton processor or
 420           Intel Quark X1000 SoC.
 421
 422           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 423           powered by the core power rail and are turned off during sleep
 424           modes (S3 and higher). The remaining four GPIOs are powered by
 425           the Intel SCH suspend power supply. These GPIOs remain
 426           active during S3. The suspend powered GPIOs can be used to wake the
 427           system from the Suspend-to-RAM state.
 428
 429           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 430           core power rail and 9 from suspend power supply.
 431
 432           The Intel Centerton processor has a total of 30 GPIO pins.
 433           Twenty-one are powered by the core power rail and 9 from the
 434           suspend power supply.
 435
 436           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 437           power well and 6 from the suspend power well.
 438
 439 config GPIO_ICH
 440         tristate "Intel ICH GPIO"
 441         depends on PCI && X86
 442         select MFD_CORE
 443         select LPC_ICH
 444         help
 445           Say yes here to support the GPIO functionality of a number of Intel
 446           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 447           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 448           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 449
 450           If unsure, say N.
 451
 452 config GPIO_IOP
 453         tristate "Intel IOP GPIO"
 454         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 455         help
 456           Say yes here to support the GPIO functionality of a number of Intel
 457           IOP32X or IOP33X.
 458
 459           If unsure, say N.
 460
 461 config GPIO_VX855
 462         tristate "VIA VX855/VX875 GPIO"
 463         depends on PCI
 464         select MFD_CORE
 465         select MFD_VX855
 466         help
 467           Support access to the VX855/VX875 GPIO lines through the gpio library.
 468
 469           This driver provides common support for accessing the device,
 470           additional drivers must be enabled in order to use the
 471           functionality of the device.
 472
 473 config GPIO_GE_FPGA
 474         bool "GE FPGA based GPIO"
 475         depends on GE_FPGA
 476         select GPIO_GENERIC
 477         help
 478           Support for common GPIO functionality provided on some GE Single Board
 479           Computers.
 480
 481           This driver provides basic support (configure as input or output, read
 482           and write pin state) for GPIO implemented in a number of GE single
 483           board computers.
 484
 485 config GPIO_LYNXPOINT
 486         tristate "Intel Lynxpoint GPIO support"
 487         depends on ACPI && X86
 488         select GPIOLIB_IRQCHIP
 489         help
 490           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 491           Requires ACPI device enumeration code to set up a platform device.
 492
 493 config GPIO_GRGPIO
 494         tristate "Aeroflex Gaisler GRGPIO support"
 495         depends on OF
 496         select GPIO_GENERIC
 497         select IRQ_DOMAIN
 498         help
 499           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 500           VHDL IP core library.
 501
 502 config GPIO_TB10X
 503         bool
 504         select GENERIC_IRQ_CHIP
 505         select OF_GPIO
 506
 507 comment "I2C GPIO expanders:"
 508
 509 config GPIO_ARIZONA
 510         tristate "Wolfson Microelectronics Arizona class devices"
 511         depends on MFD_ARIZONA
 512         help
 513           Support for GPIOs on Wolfson Arizona class devices.
 514
 515 config GPIO_CRYSTAL_COVE
 516         tristate "GPIO support for Crystal Cove PMIC"
 517         depends on INTEL_SOC_PMIC
 518         select GPIOLIB_IRQCHIP
 519         help
 520           Support for GPIO pins on Crystal Cove PMIC.
 521
 522           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 523           inside.
 524
 525           This driver can also be built as a module. If so, the module will be
 526           called gpio-crystalcove.
 527
 528 config GPIO_LP3943
 529         tristate "TI/National Semiconductor LP3943 GPIO expander"
 530         depends on MFD_LP3943
 531         help
 532           GPIO driver for LP3943 MFD.
 533           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 534           Open drain outputs are required for this usage.
 535
 536 config GPIO_MAX7300
 537         tristate "Maxim MAX7300 GPIO expander"
 538         depends on I2C
 539         select GPIO_MAX730X
 540         help
 541           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 542
 543 config GPIO_MAX732X
 544         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 545         depends on I2C
 546         select IRQ_DOMAIN
 547         help
 548           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 549           Port Expanders. Each IO port on these chips has a fixed role of
 550           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 551           Input and Output (designed by 'P'). The combinations are listed
 552           below:
 553
 554           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 555                         max7322 (4I4O), max7323 (4P4O)
 556
 557           16 bits:      max7324 (8I8O), max7325 (8P8O),
 558                         max7326 (4I12O), max7327 (4P12O)
 559
 560           Board setup code must specify the model to use, and the start
 561           number for these GPIOs.
 562
 563 config GPIO_MAX732X_IRQ
 564         bool "Interrupt controller support for MAX732x"
 565         depends on GPIO_MAX732X=y
 566         help
 567           Say yes here to enable the max732x to be used as an interrupt
 568           controller. It requires the driver to be built in the kernel.
 569
 570 config GPIO_MC9S08DZ60
 571         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 572         depends on I2C=y && MACH_MX35_3DS
 573         help
 574           Select this to enable the MC9S08DZ60 GPIO driver
 575
 576 config GPIO_PCA953X
 577         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 578         depends on I2C
 579         help
 580           Say yes here to provide access to several register-oriented
 581           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 582           models include:
 583
 584           4 bits:       pca9536, pca9537
 585
 586           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 587                         pca9556, pca9557, pca9574, tca6408, xra1202
 588
 589           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 590                         tca6416
 591
 592           24 bits:      tca6424
 593
 594           40 bits:      pca9505, pca9698
 595
 596 config GPIO_PCA953X_IRQ
 597         bool "Interrupt controller support for PCA953x"
 598         depends on GPIO_PCA953X=y
 599         select GPIOLIB_IRQCHIP
 600         help
 601           Say yes here to enable the pca953x to be used as an interrupt
 602           controller. It requires the driver to be built in the kernel.
 603
 604 config GPIO_PCF857X
 605         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 606         depends on I2C
 607         select IRQ_DOMAIN
 608         help
 609           Say yes here to provide access to most "quasi-bidirectional" I2C
 610           GPIO expanders used for additional digital outputs or inputs.
 611           Most of these parts are from NXP, though TI is a second source for
 612           some of them.  Compatible models include:
 613
 614           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 615                     pca9670, pca9672, pca9674, pca9674a,
 616                     max7328, max7329
 617
 618           16 bits:  pcf8575, pcf8575c, pca8575,
 619                     pca9671, pca9673, pca9675
 620
 621           Your board setup code will need to declare the expanders in
 622           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 623           can then be used from drivers and other kernel code, just like
 624           other GPIOs, but only accessible from task contexts.
 625
 626           This driver provides an in-kernel interface to those GPIOs using
 627           platform-neutral GPIO calls.
 628
 629 config GPIO_RC5T583
 630         bool "RICOH RC5T583 GPIO"
 631         depends on MFD_RC5T583
 632         help
 633           Select this option to enable GPIO driver for the Ricoh RC5T583
 634           chip family.
 635           This driver provides the support for driving/reading the gpio pins
 636           of RC5T583 device through standard gpio library.
 637
 638 config GPIO_SX150X
 639         bool "Semtech SX150x I2C GPIO expander"
 640         depends on I2C=y
 641         select GPIOLIB_IRQCHIP
 642         default n
 643         help
 644           Say yes here to provide support for Semtech SX150-series I2C
 645           GPIO expanders. Compatible models include:
 646
 647           8 bits:  sx1508q
 648           16 bits: sx1509q
 649
 650 config GPIO_STMPE
 651         bool "STMPE GPIOs"
 652         depends on MFD_STMPE
 653         depends on OF_GPIO
 654         select GPIOLIB_IRQCHIP
 655         help
 656           This enables support for the GPIOs found on the STMPE I/O
 657           Expanders.
 658
 659 config GPIO_STP_XWAY
 660         bool "XWAY STP GPIOs"
 661         depends on SOC_XWAY
 662         help
 663           This enables support for the Serial To Parallel (STP) unit found on
 664           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 665           that can be up to 24 bit. This peripheral is aimed at driving leds.
 666           Some of the gpios/leds can be auto updated by the soc with dsl and
 667           phy status.
 668
 669 config GPIO_TC3589X
 670         bool "TC3589X GPIOs"
 671         depends on MFD_TC3589X
 672         select GPIOLIB_IRQCHIP
 673         help
 674           This enables support for the GPIOs found on the TC3589X
 675           I/O Expander.
 676
 677 config GPIO_TPS65912
 678         tristate "TI TPS65912 GPIO"
 679         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 680         help
 681           This driver supports TPS65912 gpio chip
 682
 683 config GPIO_TWL4030
 684         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 685         depends on TWL4030_CORE
 686         help
 687           Say yes here to access the GPIO signals of various multi-function
 688           power management chips from Texas Instruments.
 689
 690 config GPIO_TWL6040
 691         tristate "TWL6040 GPO"
 692         depends on TWL6040_CORE
 693         help
 694           Say yes here to access the GPO signals of twl6040
 695           audio chip from Texas Instruments.
 696
 697 config GPIO_WM831X
 698         tristate "WM831x GPIOs"
 699         depends on MFD_WM831X
 700         help
 701           Say yes here to access the GPIO signals of WM831x power management
 702           chips from Wolfson Microelectronics.
 703
 704 config GPIO_WM8350
 705         tristate "WM8350 GPIOs"
 706         depends on MFD_WM8350
 707         help
 708           Say yes here to access the GPIO signals of WM8350 power management
 709           chips from Wolfson Microelectronics.
 710
 711 config GPIO_WM8994
 712         tristate "WM8994 GPIOs"
 713         depends on MFD_WM8994
 714         help
 715           Say yes here to access the GPIO signals of WM8994 audio hub
 716           CODECs from Wolfson Microelectronics.
 717
 718 config GPIO_ADP5520
 719         tristate "GPIO Support for ADP5520 PMIC"
 720         depends on PMIC_ADP5520
 721         help
 722           This option enables support for on-chip GPIO found
 723           on Analog Devices ADP5520 PMICs.
 724
 725 config GPIO_ADP5588
 726         tristate "ADP5588 I2C GPIO expander"
 727         depends on I2C
 728         help
 729           This option enables support for 18 GPIOs found
 730           on Analog Devices ADP5588 GPIO Expanders.
 731
 732 config GPIO_ADP5588_IRQ
 733         bool "Interrupt controller support for ADP5588"
 734         depends on GPIO_ADP5588=y
 735         help
 736           Say yes here to enable the adp5588 to be used as an interrupt
 737           controller. It requires the driver to be built in the kernel.
 738
 739 config GPIO_ADNP
 740         tristate "Avionic Design N-bit GPIO expander"
 741         depends on I2C && OF_GPIO
 742         select GPIOLIB_IRQCHIP
 743         help
 744           This option enables support for N GPIOs found on Avionic Design
 745           I2C GPIO expanders. The register space will be extended by powers
 746           of two, so the controller will need to accommodate for that. For
 747           example: if a controller provides 48 pins, 6 registers will be
 748           enough to represent all pins, but the driver will assume a
 749           register layout for 64 pins (8 registers).
 750
 751 comment "PCI GPIO expanders:"
 752
 753 config GPIO_CS5535
 754         tristate "AMD CS5535/CS5536 GPIO support"
 755         depends on MFD_CS5535
 756         help
 757           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 758           can be used for quite a number of things.  The CS5535/6 is found on
 759           AMD Geode and Lemote Yeeloong devices.
 760
 761           If unsure, say N.
 762
 763 config GPIO_BT8XX
 764         tristate "BT8XX GPIO abuser"
 765         depends on PCI && VIDEO_BT848=n
 766         help
 767           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 768           as a cheap PCI GPIO card.
 769
 770           This chip can be found on Miro, Hauppauge and STB TV-cards.
 771
 772           The card needs to be physically altered for using it as a
 773           GPIO card. For more information on how to build a GPIO card
 774           from a BT8xx TV card, see the documentation file at
 775           Documentation/bt8xxgpio.txt
 776
 777           If unsure, say N.
 778
 779 config GPIO_AMD8111
 780         tristate "AMD 8111 GPIO driver"
 781         depends on PCI
 782         help
 783           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 784
 785           Note, that usually system firmware/ACPI handles GPIO pins on their
 786           own and users might easily break their systems with uncarefull usage
 787           of this driver!
 788
 789           If unsure, say N
 790
 791 config GPIO_INTEL_MID
 792         bool "Intel Mid GPIO support"
 793         depends on PCI && X86
 794         select GPIOLIB_IRQCHIP
 795         help
 796           Say Y here to support Intel Mid GPIO.
 797
 798 config GPIO_PCH
 799         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 800         depends on PCI && (X86_32 || COMPILE_TEST)
 801         select GENERIC_IRQ_CHIP
 802         help
 803           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 804           which is an IOH(Input/Output Hub) for x86 embedded processor.
 805           This driver can access PCH GPIO device.
 806
 807           This driver also can be used for LAPIS Semiconductor IOH(Input/
 808           Output Hub), ML7223 and ML7831.
 809           ML7223 IOH is for MP(Media Phone) use.
 810           ML7831 IOH is for general purpose use.
 811           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 812           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 813
 814 config GPIO_ML_IOH
 815         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 816         depends on PCI
 817         select GENERIC_IRQ_CHIP
 818         help
 819           ML7213 is companion chip for Intel Atom E6xx series.
 820           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 821           Hub) which is for IVI(In-Vehicle Infotainment) use.
 822           This driver can access the IOH's GPIO device.
 823
 824 config GPIO_SODAVILLE
 825         bool "Intel Sodaville GPIO support"
 826         depends on X86 && PCI && OF
 827         select GPIO_GENERIC
 828         select GENERIC_IRQ_CHIP
 829         help
 830           Say Y here to support Intel Sodaville GPIO.
 831
 832 config GPIO_TIMBERDALE
 833         bool "Support for timberdale GPIO IP"
 834         depends on MFD_TIMBERDALE
 835         ---help---
 836         Add support for the GPIO IP in the timberdale FPGA.
 837
 838 config GPIO_RDC321X
 839         tristate "RDC R-321x GPIO support"
 840         depends on PCI
 841         select MFD_CORE
 842         select MFD_RDC321X
 843         help
 844           Support for the RDC R321x SoC GPIOs over southbridge
 845           PCI configuration space.
 846
 847 comment "SPI GPIO expanders:"
 848
 849 config GPIO_MAX7301
 850         tristate "Maxim MAX7301 GPIO expander"
 851         depends on SPI_MASTER
 852         select GPIO_MAX730X
 853         help
 854           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 855
 856 config GPIO_MCP23S08
 857         tristate "Microchip MCP23xxx I/O expander"
 858         depends on (SPI_MASTER && !I2C) || I2C
 859         help
 860           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 861           I/O expanders.
 862           This provides a GPIO interface supporting inputs and outputs.
 863           The I2C versions of the chips can be used as interrupt-controller.
 864
 865 config GPIO_MC33880
 866         tristate "Freescale MC33880 high-side/low-side switch"
 867         depends on SPI_MASTER
 868         help
 869           SPI driver for Freescale MC33880 high-side/low-side switch.
 870           This provides GPIO interface supporting inputs and outputs.
 871
 872 config GPIO_74X164
 873         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 874         depends on SPI_MASTER && OF
 875         help
 876           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 877           shift registers. This driver can be used to provide access
 878           to more gpio outputs.
 879
 880 comment "AC97 GPIO expanders:"
 881
 882 config GPIO_UCB1400
 883         tristate "Philips UCB1400 GPIO"
 884         depends on UCB1400_CORE
 885         help
 886           This enables support for the Philips UCB1400 GPIO pins.
 887           The UCB1400 is an AC97 audio codec.
 888
 889 comment "LPC GPIO expanders:"
 890
 891 config GPIO_KEMPLD
 892         tristate "Kontron ETX / COMexpress GPIO"
 893         depends on MFD_KEMPLD
 894         help
 895           This enables support for the PLD GPIO interface on some Kontron ETX
 896           and COMexpress (ETXexpress) modules.
 897
 898           This driver can also be built as a module. If so, the module will be
 899           called gpio-kempld.
 900
 901 comment "MODULbus GPIO expanders:"
 902
 903 config GPIO_JANZ_TTL
 904         tristate "Janz VMOD-TTL Digital IO Module"
 905         depends on MFD_JANZ_CMODIO
 906         help
 907           This enables support for the Janz VMOD-TTL Digital IO module.
 908           This driver provides support for driving the pins in output
 909           mode only. Input mode is not supported.
 910
 911 config GPIO_PALMAS
 912         bool "TI PALMAS series PMICs GPIO"
 913         depends on MFD_PALMAS
 914         help
 915           Select this option to enable GPIO driver for the TI PALMAS
 916           series chip family.
 917
 918 config GPIO_TPS6586X
 919         bool "TPS6586X GPIO"
 920         depends on MFD_TPS6586X
 921         help
 922           Select this option to enable GPIO driver for the TPS6586X
 923           chip family.
 924
 925 config GPIO_TPS65910
 926         bool "TPS65910 GPIO"
 927         depends on MFD_TPS65910
 928         help
 929           Select this option to enable GPIO driver for the TPS65910
 930           chip family.
 931
 932 config GPIO_MSIC
 933         bool "Intel MSIC mixed signal gpio support"
 934         depends on MFD_INTEL_MSIC
 935         help
 936           Enable support for GPIO on intel MSIC controllers found in
 937           intel MID devices
 938
 939 config GPIO_BCM_KONA
 940         bool "Broadcom Kona GPIO"
 941         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 942         help
 943           Turn on GPIO support for Broadcom "Kona" chips.
 944
 945 comment "USB GPIO expanders:"
 946
 947 config GPIO_VIPERBOARD
 948         tristate "Viperboard GPIO a & b support"
 949         depends on MFD_VIPERBOARD && USB
 950         help
 951           Say yes here to access the GPIO signals of Nano River
 952           Technologies Viperboard. There are two GPIO chips on the
 953           board: gpioa and gpiob.
 954           See viperboard API specification and Nano
 955           River Tech's viperboard.h for detailed meaning
 956           of the module parameters.
 957
 958 config GPIO_DLN2
 959         tristate "Diolan DLN2 GPIO support"
 960         depends on MFD_DLN2
 961         select GPIOLIB_IRQCHIP
 962
 963         help
 964           Select this option to enable GPIO driver for the Diolan DLN2
 965           board.
 966
 967           This driver can also be built as a module. If so, the module
 968           will be called gpio-dln2.
 969
 970 endif