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_ALTERA
 160         tristate "Altera GPIO"
 161         depends on OF_GPIO
 162         select GPIO_GENERIC
 163         select GPIOLIB_IRQCHIP
 164         help
 165           Say Y or M here to build support for the Altera PIO device.
 166
 167           If driver is built as a module it will be called gpio-altera.
 168
 169 config GPIO_IT8761E
 170         tristate "IT8761E GPIO support"
 171         depends on X86  # unconditional access to IO space.
 172         help
 173           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 174
 175 config GPIO_EM
 176         tristate "Emma Mobile GPIO"
 177         depends on ARM && OF_GPIO
 178         help
 179           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 180
 181 config GPIO_EP93XX
 182         def_bool y
 183         depends on ARCH_EP93XX
 184         select GPIO_GENERIC
 185
 186 config GPIO_ZEVIO
 187         bool "LSI ZEVIO SoC memory mapped GPIOs"
 188         depends on ARM && OF_GPIO
 189         help
 190           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 191
 192 config GPIO_MM_LANTIQ
 193         bool "Lantiq Memory mapped GPIOs"
 194         depends on LANTIQ && SOC_XWAY
 195         help
 196           This enables support for memory mapped GPIOs on the External Bus Unit
 197           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 198           created by attaching a 16bit latch to the bus.
 199
 200 config GPIO_F7188X
 201         tristate "F71882FG and F71889F GPIO support"
 202         depends on X86
 203         help
 204           This option enables support for GPIOs found on Fintek Super-I/O
 205           chips F71882FG and F71889F.
 206
 207           To compile this driver as a module, choose M here: the module will
 208           be called f7188x-gpio.
 209
 210 config GPIO_MB86S7X
 211         bool "GPIO support for Fujitsu MB86S7x Platforms"
 212         depends on ARCH_MB86S7X
 213         help
 214           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 215
 216 config GPIO_MOXART
 217         bool "MOXART GPIO support"
 218         depends on ARCH_MOXART
 219         select GPIO_GENERIC
 220         help
 221           Select this option to enable GPIO driver for
 222           MOXA ART SoC devices.
 223
 224 config GPIO_MPC5200
 225         def_bool y
 226         depends on PPC_MPC52xx
 227
 228 config GPIO_MPC8XXX
 229         bool "MPC512x/MPC8xxx GPIO support"
 230         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 231                    FSL_SOC_BOOKE || PPC_86xx
 232         help
 233           Say Y here if you're going to use hardware that connects to the
 234           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 235
 236 config GPIO_MSM_V1
 237         tristate "Qualcomm MSM GPIO v1"
 238         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 239         help
 240           Say yes here to support the GPIO interface on ARM v6 based
 241           Qualcomm MSM chips.  Most of the pins on the MSM can be
 242           selected for GPIO, and are controlled by this driver.
 243
 244 config GPIO_MSM_V2
 245         tristate "Qualcomm MSM GPIO v2"
 246         depends on GPIOLIB && OF && ARCH_QCOM
 247         help
 248           Say yes here to support the GPIO interface on ARM v7 based
 249           Qualcomm MSM chips.  Most of the pins on the MSM can be
 250           selected for GPIO, and are controlled by this driver.
 251
 252 config GPIO_MVEBU
 253         def_bool y
 254         depends on PLAT_ORION
 255         depends on OF
 256         select GPIO_GENERIC
 257         select GENERIC_IRQ_CHIP
 258
 259 config GPIO_MXC
 260         def_bool y
 261         depends on ARCH_MXC
 262         select GPIO_GENERIC
 263         select GENERIC_IRQ_CHIP
 264
 265 config GPIO_MXS
 266         def_bool y
 267         depends on ARCH_MXS
 268         select GPIO_GENERIC
 269         select GENERIC_IRQ_CHIP
 270
 271 config GPIO_OCTEON
 272         tristate "Cavium OCTEON GPIO"
 273         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 274         default y
 275         help
 276           Say yes here to support the on-chip GPIO lines on the OCTEON
 277           family of SOCs.
 278
 279 config GPIO_OMAP
 280         bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS
 281         default y if ARCH_OMAP
 282         depends on ARM
 283         select GENERIC_IRQ_CHIP
 284         select GPIOLIB_IRQCHIP
 285         help
 286           Say yes here to enable GPIO support for TI OMAP SoCs.
 287
 288 config GPIO_PL061
 289         bool "PrimeCell PL061 GPIO support"
 290         depends on ARM_AMBA
 291         select IRQ_DOMAIN
 292         select GPIOLIB_IRQCHIP
 293         help
 294           Say yes here to support the PrimeCell PL061 GPIO device
 295
 296 config GPIO_PXA
 297         bool "PXA GPIO support"
 298         depends on ARCH_PXA || ARCH_MMP
 299         help
 300           Say yes here to support the PXA GPIO device
 301
 302 config GPIO_RCAR
 303         tristate "Renesas R-Car GPIO"
 304         depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
 305         select GPIOLIB_IRQCHIP
 306         help
 307           Say yes here to support GPIO on Renesas R-Car SoCs.
 308
 309 config GPIO_SAMSUNG
 310         bool
 311         depends on PLAT_SAMSUNG
 312         help
 313           Legacy GPIO support. Use only for platforms without support for
 314           pinctrl.
 315
 316 config GPIO_SCH311X
 317         tristate "SMSC SCH311x SuperI/O GPIO"
 318         help
 319           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 320           SCH3116 "Super I/O" chipsets.
 321
 322           To compile this driver as a module, choose M here: the module will
 323           be called gpio-sch311x.
 324
 325 config GPIO_SPEAR_SPICS
 326         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 327         depends on PLAT_SPEAR
 328         select GENERIC_IRQ_CHIP
 329         help
 330           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 331
 332 config GPIO_STA2X11
 333         bool "STA2x11/ConneXt GPIO support"
 334         depends on MFD_STA2X11
 335         select GENERIC_IRQ_CHIP
 336         help
 337           Say yes here to support the STA2x11/ConneXt GPIO device.
 338           The GPIO module has 128 GPIO pins with alternate functions.
 339
 340 config GPIO_SYSCON
 341         tristate "GPIO based on SYSCON"
 342         depends on MFD_SYSCON && OF
 343         help
 344           Say yes here to support GPIO functionality though SYSCON driver.
 345
 346 config GPIO_TS5500
 347         tristate "TS-5500 DIO blocks and compatibles"
 348         depends on TS5500 || COMPILE_TEST
 349         help
 350           This driver supports Digital I/O exposed by pin blocks found on some
 351           Technologic Systems platforms. It includes, but is not limited to, 3
 352           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 353           LCD port.
 354
 355 config GPIO_TZ1090
 356         bool "Toumaz Xenif TZ1090 GPIO support"
 357         depends on SOC_TZ1090
 358         select GENERIC_IRQ_CHIP
 359         default y
 360         help
 361           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 362
 363 config GPIO_TZ1090_PDC
 364         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 365         depends on SOC_TZ1090
 366         default y
 367         help
 368           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 369
 370 config GPIO_VF610
 371         def_bool y
 372         depends on ARCH_MXC && SOC_VF610
 373         select GPIOLIB_IRQCHIP
 374         help
 375           Say yes here to support Vybrid vf610 GPIOs.
 376
 377 config GPIO_XGENE
 378         bool "APM X-Gene GPIO controller support"
 379         depends on ARM64 && OF_GPIO
 380         help
 381           This driver is to support the GPIO block within the APM X-Gene SoC
 382           platform's generic flash controller. The GPIO pins are muxed with
 383           the generic flash controller's address and data pins. Say yes
 384           here to enable the GFC GPIO functionality.
 385
 386 config GPIO_XGENE_SB
 387         tristate "APM X-Gene GPIO standby controller support"
 388         depends on ARCH_XGENE && OF_GPIO
 389         select GPIO_GENERIC
 390         help
 391           This driver supports the GPIO block within the APM X-Gene
 392           Standby Domain. Say yes here to enable the GPIO functionality.
 393
 394 config GPIO_XILINX
 395         tristate "Xilinx GPIO support"
 396         depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
 397         help
 398           Say yes here to support the Xilinx FPGA GPIO device
 399
 400 config GPIO_ZYNQ
 401         tristate "Xilinx Zynq GPIO support"
 402         depends on ARCH_ZYNQ
 403         select GPIOLIB_IRQCHIP
 404         help
 405           Say yes here to support Xilinx Zynq GPIO controller.
 406
 407 config GPIO_XTENSA
 408         bool "Xtensa GPIO32 support"
 409         depends on XTENSA
 410         depends on HAVE_XTENSA_GPIO32
 411         depends on !SMP
 412         help
 413           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 414           and EXPSTATE (output) ports
 415
 416 config GPIO_VR41XX
 417         tristate "NEC VR4100 series General-purpose I/O Uint support"
 418         depends on CPU_VR41XX
 419         help
 420           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 421
 422 config GPIO_SCH
 423         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 424         depends on PCI && X86
 425         select MFD_CORE
 426         select LPC_SCH
 427         help
 428           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 429           Intel Tunnel Creek processor, Intel Centerton processor or
 430           Intel Quark X1000 SoC.
 431
 432           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 433           powered by the core power rail and are turned off during sleep
 434           modes (S3 and higher). The remaining four GPIOs are powered by
 435           the Intel SCH suspend power supply. These GPIOs remain
 436           active during S3. The suspend powered GPIOs can be used to wake the
 437           system from the Suspend-to-RAM state.
 438
 439           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 440           core power rail and 9 from suspend power supply.
 441
 442           The Intel Centerton processor has a total of 30 GPIO pins.
 443           Twenty-one are powered by the core power rail and 9 from the
 444           suspend power supply.
 445
 446           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 447           power well and 6 from the suspend power well.
 448
 449 config GPIO_ICH
 450         tristate "Intel ICH GPIO"
 451         depends on PCI && X86
 452         select MFD_CORE
 453         select LPC_ICH
 454         help
 455           Say yes here to support the GPIO functionality of a number of Intel
 456           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 457           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 458           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 459
 460           If unsure, say N.
 461
 462 config GPIO_IOP
 463         tristate "Intel IOP GPIO"
 464         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 465         help
 466           Say yes here to support the GPIO functionality of a number of Intel
 467           IOP32X or IOP33X.
 468
 469           If unsure, say N.
 470
 471 config GPIO_VX855
 472         tristate "VIA VX855/VX875 GPIO"
 473         depends on PCI
 474         select MFD_CORE
 475         select MFD_VX855
 476         help
 477           Support access to the VX855/VX875 GPIO lines through the gpio library.
 478
 479           This driver provides common support for accessing the device,
 480           additional drivers must be enabled in order to use the
 481           functionality of the device.
 482
 483 config GPIO_GE_FPGA
 484         bool "GE FPGA based GPIO"
 485         depends on GE_FPGA
 486         select GPIO_GENERIC
 487         help
 488           Support for common GPIO functionality provided on some GE Single Board
 489           Computers.
 490
 491           This driver provides basic support (configure as input or output, read
 492           and write pin state) for GPIO implemented in a number of GE single
 493           board computers.
 494
 495 config GPIO_LYNXPOINT
 496         tristate "Intel Lynxpoint GPIO support"
 497         depends on ACPI && X86
 498         select GPIOLIB_IRQCHIP
 499         help
 500           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 501           Requires ACPI device enumeration code to set up a platform device.
 502
 503 config GPIO_GRGPIO
 504         tristate "Aeroflex Gaisler GRGPIO support"
 505         depends on OF
 506         select GPIO_GENERIC
 507         select IRQ_DOMAIN
 508         help
 509           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 510           VHDL IP core library.
 511
 512 config GPIO_TB10X
 513         bool
 514         select GENERIC_IRQ_CHIP
 515         select OF_GPIO
 516
 517 comment "I2C GPIO expanders:"
 518
 519 config GPIO_ARIZONA
 520         tristate "Wolfson Microelectronics Arizona class devices"
 521         depends on MFD_ARIZONA
 522         help
 523           Support for GPIOs on Wolfson Arizona class devices.
 524
 525 config GPIO_CRYSTAL_COVE
 526         tristate "GPIO support for Crystal Cove PMIC"
 527         depends on INTEL_SOC_PMIC
 528         select GPIOLIB_IRQCHIP
 529         help
 530           Support for GPIO pins on Crystal Cove PMIC.
 531
 532           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 533           inside.
 534
 535           This driver can also be built as a module. If so, the module will be
 536           called gpio-crystalcove.
 537
 538 config GPIO_LP3943
 539         tristate "TI/National Semiconductor LP3943 GPIO expander"
 540         depends on MFD_LP3943
 541         help
 542           GPIO driver for LP3943 MFD.
 543           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 544           Open drain outputs are required for this usage.
 545
 546 config GPIO_MAX7300
 547         tristate "Maxim MAX7300 GPIO expander"
 548         depends on I2C
 549         select GPIO_MAX730X
 550         help
 551           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 552
 553 config GPIO_MAX732X
 554         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 555         depends on I2C
 556         help
 557           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 558           Port Expanders. Each IO port on these chips has a fixed role of
 559           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 560           Input and Output (designed by 'P'). The combinations are listed
 561           below:
 562
 563           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 564                         max7322 (4I4O), max7323 (4P4O)
 565
 566           16 bits:      max7324 (8I8O), max7325 (8P8O),
 567                         max7326 (4I12O), max7327 (4P12O)
 568
 569           Board setup code must specify the model to use, and the start
 570           number for these GPIOs.
 571
 572 config GPIO_MAX732X_IRQ
 573         bool "Interrupt controller support for MAX732x"
 574         depends on GPIO_MAX732X=y
 575         select GPIOLIB_IRQCHIP
 576         help
 577           Say yes here to enable the max732x to be used as an interrupt
 578           controller. It requires the driver to be built in the kernel.
 579
 580 config GPIO_MC9S08DZ60
 581         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 582         depends on I2C=y && MACH_MX35_3DS
 583         help
 584           Select this to enable the MC9S08DZ60 GPIO driver
 585
 586 config GPIO_PCA953X
 587         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 588         depends on I2C
 589         help
 590           Say yes here to provide access to several register-oriented
 591           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 592           models include:
 593
 594           4 bits:       pca9536, pca9537
 595
 596           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 597                         pca9556, pca9557, pca9574, tca6408, xra1202
 598
 599           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 600                         tca6416
 601
 602           24 bits:      tca6424
 603
 604           40 bits:      pca9505, pca9698
 605
 606 config GPIO_PCA953X_IRQ
 607         bool "Interrupt controller support for PCA953x"
 608         depends on GPIO_PCA953X=y
 609         select GPIOLIB_IRQCHIP
 610         help
 611           Say yes here to enable the pca953x to be used as an interrupt
 612           controller. It requires the driver to be built in the kernel.
 613
 614 config GPIO_PCF857X
 615         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 616         depends on I2C
 617         select GPIOLIB_IRQCHIP
 618         select IRQ_DOMAIN
 619         help
 620           Say yes here to provide access to most "quasi-bidirectional" I2C
 621           GPIO expanders used for additional digital outputs or inputs.
 622           Most of these parts are from NXP, though TI is a second source for
 623           some of them.  Compatible models include:
 624
 625           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 626                     pca9670, pca9672, pca9674, pca9674a,
 627                     max7328, max7329
 628
 629           16 bits:  pcf8575, pcf8575c, pca8575,
 630                     pca9671, pca9673, pca9675
 631
 632           Your board setup code will need to declare the expanders in
 633           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 634           can then be used from drivers and other kernel code, just like
 635           other GPIOs, but only accessible from task contexts.
 636
 637           This driver provides an in-kernel interface to those GPIOs using
 638           platform-neutral GPIO calls.
 639
 640 config GPIO_RC5T583
 641         bool "RICOH RC5T583 GPIO"
 642         depends on MFD_RC5T583
 643         help
 644           Select this option to enable GPIO driver for the Ricoh RC5T583
 645           chip family.
 646           This driver provides the support for driving/reading the gpio pins
 647           of RC5T583 device through standard gpio library.
 648
 649 config GPIO_SX150X
 650         bool "Semtech SX150x I2C GPIO expander"
 651         depends on I2C=y
 652         select GPIOLIB_IRQCHIP
 653         default n
 654         help
 655           Say yes here to provide support for Semtech SX150-series I2C
 656           GPIO expanders. Compatible models include:
 657
 658           8 bits:  sx1508q
 659           16 bits: sx1509q
 660
 661 config GPIO_STMPE
 662         bool "STMPE GPIOs"
 663         depends on MFD_STMPE
 664         depends on OF_GPIO
 665         select GPIOLIB_IRQCHIP
 666         help
 667           This enables support for the GPIOs found on the STMPE I/O
 668           Expanders.
 669
 670 config GPIO_STP_XWAY
 671         bool "XWAY STP GPIOs"
 672         depends on SOC_XWAY
 673         help
 674           This enables support for the Serial To Parallel (STP) unit found on
 675           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 676           that can be up to 24 bit. This peripheral is aimed at driving leds.
 677           Some of the gpios/leds can be auto updated by the soc with dsl and
 678           phy status.
 679
 680 config GPIO_TC3589X
 681         bool "TC3589X GPIOs"
 682         depends on MFD_TC3589X
 683         select GPIOLIB_IRQCHIP
 684         help
 685           This enables support for the GPIOs found on the TC3589X
 686           I/O Expander.
 687
 688 config GPIO_TPS65912
 689         tristate "TI TPS65912 GPIO"
 690         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 691         help
 692           This driver supports TPS65912 gpio chip
 693
 694 config GPIO_TWL4030
 695         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 696         depends on TWL4030_CORE
 697         help
 698           Say yes here to access the GPIO signals of various multi-function
 699           power management chips from Texas Instruments.
 700
 701 config GPIO_TWL6040
 702         tristate "TWL6040 GPO"
 703         depends on TWL6040_CORE
 704         help
 705           Say yes here to access the GPO signals of twl6040
 706           audio chip from Texas Instruments.
 707
 708 config GPIO_WM831X
 709         tristate "WM831x GPIOs"
 710         depends on MFD_WM831X
 711         help
 712           Say yes here to access the GPIO signals of WM831x power management
 713           chips from Wolfson Microelectronics.
 714
 715 config GPIO_WM8350
 716         tristate "WM8350 GPIOs"
 717         depends on MFD_WM8350
 718         help
 719           Say yes here to access the GPIO signals of WM8350 power management
 720           chips from Wolfson Microelectronics.
 721
 722 config GPIO_WM8994
 723         tristate "WM8994 GPIOs"
 724         depends on MFD_WM8994
 725         help
 726           Say yes here to access the GPIO signals of WM8994 audio hub
 727           CODECs from Wolfson Microelectronics.
 728
 729 config GPIO_ADP5520
 730         tristate "GPIO Support for ADP5520 PMIC"
 731         depends on PMIC_ADP5520
 732         help
 733           This option enables support for on-chip GPIO found
 734           on Analog Devices ADP5520 PMICs.
 735
 736 config GPIO_ADP5588
 737         tristate "ADP5588 I2C GPIO expander"
 738         depends on I2C
 739         help
 740           This option enables support for 18 GPIOs found
 741           on Analog Devices ADP5588 GPIO Expanders.
 742
 743 config GPIO_ADP5588_IRQ
 744         bool "Interrupt controller support for ADP5588"
 745         depends on GPIO_ADP5588=y
 746         help
 747           Say yes here to enable the adp5588 to be used as an interrupt
 748           controller. It requires the driver to be built in the kernel.
 749
 750 config GPIO_ADNP
 751         tristate "Avionic Design N-bit GPIO expander"
 752         depends on I2C && OF_GPIO
 753         select GPIOLIB_IRQCHIP
 754         help
 755           This option enables support for N GPIOs found on Avionic Design
 756           I2C GPIO expanders. The register space will be extended by powers
 757           of two, so the controller will need to accommodate for that. For
 758           example: if a controller provides 48 pins, 6 registers will be
 759           enough to represent all pins, but the driver will assume a
 760           register layout for 64 pins (8 registers).
 761
 762 comment "PCI GPIO expanders:"
 763
 764 config GPIO_CS5535
 765         tristate "AMD CS5535/CS5536 GPIO support"
 766         depends on MFD_CS5535
 767         help
 768           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 769           can be used for quite a number of things.  The CS5535/6 is found on
 770           AMD Geode and Lemote Yeeloong devices.
 771
 772           If unsure, say N.
 773
 774 config GPIO_BT8XX
 775         tristate "BT8XX GPIO abuser"
 776         depends on PCI && VIDEO_BT848=n
 777         help
 778           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 779           as a cheap PCI GPIO card.
 780
 781           This chip can be found on Miro, Hauppauge and STB TV-cards.
 782
 783           The card needs to be physically altered for using it as a
 784           GPIO card. For more information on how to build a GPIO card
 785           from a BT8xx TV card, see the documentation file at
 786           Documentation/bt8xxgpio.txt
 787
 788           If unsure, say N.
 789
 790 config GPIO_AMD8111
 791         tristate "AMD 8111 GPIO driver"
 792         depends on PCI
 793         help
 794           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 795
 796           Note, that usually system firmware/ACPI handles GPIO pins on their
 797           own and users might easily break their systems with uncarefull usage
 798           of this driver!
 799
 800           If unsure, say N
 801
 802 config GPIO_INTEL_MID
 803         bool "Intel Mid GPIO support"
 804         depends on PCI && X86
 805         select GPIOLIB_IRQCHIP
 806         help
 807           Say Y here to support Intel Mid GPIO.
 808
 809 config GPIO_PCH
 810         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 811         depends on PCI && (X86_32 || COMPILE_TEST)
 812         select GENERIC_IRQ_CHIP
 813         help
 814           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 815           which is an IOH(Input/Output Hub) for x86 embedded processor.
 816           This driver can access PCH GPIO device.
 817
 818           This driver also can be used for LAPIS Semiconductor IOH(Input/
 819           Output Hub), ML7223 and ML7831.
 820           ML7223 IOH is for MP(Media Phone) use.
 821           ML7831 IOH is for general purpose use.
 822           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 823           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 824
 825 config GPIO_ML_IOH
 826         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 827         depends on PCI
 828         select GENERIC_IRQ_CHIP
 829         help
 830           ML7213 is companion chip for Intel Atom E6xx series.
 831           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 832           Hub) which is for IVI(In-Vehicle Infotainment) use.
 833           This driver can access the IOH's GPIO device.
 834
 835 config GPIO_SODAVILLE
 836         bool "Intel Sodaville GPIO support"
 837         depends on X86 && PCI && OF
 838         select GPIO_GENERIC
 839         select GENERIC_IRQ_CHIP
 840         help
 841           Say Y here to support Intel Sodaville GPIO.
 842
 843 config GPIO_TIMBERDALE
 844         bool "Support for timberdale GPIO IP"
 845         depends on MFD_TIMBERDALE
 846         ---help---
 847         Add support for the GPIO IP in the timberdale FPGA.
 848
 849 config GPIO_RDC321X
 850         tristate "RDC R-321x GPIO support"
 851         depends on PCI
 852         select MFD_CORE
 853         select MFD_RDC321X
 854         help
 855           Support for the RDC R321x SoC GPIOs over southbridge
 856           PCI configuration space.
 857
 858 comment "SPI GPIO expanders:"
 859
 860 config GPIO_MAX7301
 861         tristate "Maxim MAX7301 GPIO expander"
 862         depends on SPI_MASTER
 863         select GPIO_MAX730X
 864         help
 865           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 866
 867 config GPIO_MCP23S08
 868         tristate "Microchip MCP23xxx I/O expander"
 869         depends on (SPI_MASTER && !I2C) || I2C
 870         help
 871           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 872           I/O expanders.
 873           This provides a GPIO interface supporting inputs and outputs.
 874           The I2C versions of the chips can be used as interrupt-controller.
 875
 876 config GPIO_MC33880
 877         tristate "Freescale MC33880 high-side/low-side switch"
 878         depends on SPI_MASTER
 879         help
 880           SPI driver for Freescale MC33880 high-side/low-side switch.
 881           This provides GPIO interface supporting inputs and outputs.
 882
 883 config GPIO_74X164
 884         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 885         depends on SPI_MASTER && OF
 886         help
 887           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 888           shift registers. This driver can be used to provide access
 889           to more gpio outputs.
 890
 891 comment "AC97 GPIO expanders:"
 892
 893 config GPIO_UCB1400
 894         tristate "Philips UCB1400 GPIO"
 895         depends on UCB1400_CORE
 896         help
 897           This enables support for the Philips UCB1400 GPIO pins.
 898           The UCB1400 is an AC97 audio codec.
 899
 900 comment "LPC GPIO expanders:"
 901
 902 config GPIO_KEMPLD
 903         tristate "Kontron ETX / COMexpress GPIO"
 904         depends on MFD_KEMPLD
 905         help
 906           This enables support for the PLD GPIO interface on some Kontron ETX
 907           and COMexpress (ETXexpress) modules.
 908
 909           This driver can also be built as a module. If so, the module will be
 910           called gpio-kempld.
 911
 912 comment "MODULbus GPIO expanders:"
 913
 914 config GPIO_JANZ_TTL
 915         tristate "Janz VMOD-TTL Digital IO Module"
 916         depends on MFD_JANZ_CMODIO
 917         help
 918           This enables support for the Janz VMOD-TTL Digital IO module.
 919           This driver provides support for driving the pins in output
 920           mode only. Input mode is not supported.
 921
 922 config GPIO_PALMAS
 923         bool "TI PALMAS series PMICs GPIO"
 924         depends on MFD_PALMAS
 925         help
 926           Select this option to enable GPIO driver for the TI PALMAS
 927           series chip family.
 928
 929 config GPIO_TPS6586X
 930         bool "TPS6586X GPIO"
 931         depends on MFD_TPS6586X
 932         help
 933           Select this option to enable GPIO driver for the TPS6586X
 934           chip family.
 935
 936 config GPIO_TPS65910
 937         bool "TPS65910 GPIO"
 938         depends on MFD_TPS65910
 939         help
 940           Select this option to enable GPIO driver for the TPS65910
 941           chip family.
 942
 943 config GPIO_MSIC
 944         bool "Intel MSIC mixed signal gpio support"
 945         depends on MFD_INTEL_MSIC
 946         help
 947           Enable support for GPIO on intel MSIC controllers found in
 948           intel MID devices
 949
 950 config GPIO_BCM_KONA
 951         bool "Broadcom Kona GPIO"
 952         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 953         help
 954           Turn on GPIO support for Broadcom "Kona" chips.
 955
 956 comment "USB GPIO expanders:"
 957
 958 config GPIO_VIPERBOARD
 959         tristate "Viperboard GPIO a & b support"
 960         depends on MFD_VIPERBOARD && USB
 961         help
 962           Say yes here to access the GPIO signals of Nano River
 963           Technologies Viperboard. There are two GPIO chips on the
 964           board: gpioa and gpiob.
 965           See viperboard API specification and Nano
 966           River Tech's viperboard.h for detailed meaning
 967           of the module parameters.
 968
 969 config GPIO_DLN2
 970         tristate "Diolan DLN2 GPIO support"
 971         depends on MFD_DLN2
 972         select GPIOLIB_IRQCHIP
 973
 974         help
 975           Select this option to enable GPIO driver for the Diolan DLN2
 976           board.
 977
 978           This driver can also be built as a module. If so, the module
 979           will be called gpio-dln2.
 980
 981 endif