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
  35 menuconfig GPIOLIB
  36         bool "GPIO Support"
  37         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  38         select GENERIC_GPIO
  39         help
  40           This enables GPIO support through the generic GPIO library.
  41           You only need to enable this, if you also want to enable
  42           one or more of the GPIO drivers below.
  43
  44           If unsure, say N.
  45
  46 if GPIOLIB
  47
  48 config OF_GPIO
  49         def_bool y
  50         depends on OF && !SPARC
  51
  52 config DEBUG_GPIO
  53         bool "Debug GPIO calls"
  54         depends on DEBUG_KERNEL
  55         help
  56           Say Y here to add some extra checks and diagnostics to GPIO calls.
  57           These checks help ensure that GPIOs have been properly initialized
  58           before they are used, and that sleeping calls are not made from
  59           non-sleeping contexts.  They can make bitbanged serial protocols
  60           slower.  The diagnostics help catch the type of setup errors
  61           that are most common when setting up new platforms or boards.
  62
  63 config GPIO_SYSFS
  64         bool "/sys/class/gpio/... (sysfs interface)"
  65         depends on SYSFS && EXPERIMENTAL
  66         help
  67           Say Y here to add a sysfs interface for GPIOs.
  68
  69           This is mostly useful to work around omissions in a system's
  70           kernel support.  Those are common in custom and semicustom
  71           hardware assembled using standard kernels with a minimum of
  72           custom patches.  In those cases, userspace code may import
  73           a given GPIO from the kernel, if no kernel driver requested it.
  74
  75           Kernel drivers may also request that a particular GPIO be
  76           exported to userspace; this can be useful when debugging.
  77
  78 config GPIO_GENERIC
  79         tristate
  80
  81 # put drivers in the right section, in alphabetical order
  82
  83 config GPIO_DA9052
  84         tristate "Dialog DA9052 GPIO"
  85         depends on PMIC_DA9052 && BROKEN
  86         help
  87           Say yes here to enable the GPIO driver for the DA9052 chip.
  88
  89 config GPIO_MAX730X
  90         tristate
  91
  92 comment "Memory mapped GPIO drivers:"
  93
  94 config GPIO_GENERIC_PLATFORM
  95         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
  96         select GPIO_GENERIC
  97         help
  98           Say yes here to support basic platform_device memory-mapped GPIO controllers.
  99
 100 config GPIO_IT8761E
 101         tristate "IT8761E GPIO support"
 102         depends on X86  # unconditional access to IO space.
 103         help
 104           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 105
 106 config GPIO_EM
 107         tristate "Emma Mobile GPIO"
 108         depends on ARM
 109         help
 110           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 111
 112 config GPIO_EP93XX
 113         def_bool y
 114         depends on ARCH_EP93XX
 115         select GPIO_GENERIC
 116
 117 config GPIO_MM_LANTIQ
 118         bool "Lantiq Memory mapped GPIOs"
 119         depends on LANTIQ && SOC_XWAY
 120         help
 121           This enables support for memory mapped GPIOs on the External Bus Unit
 122           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 123           created by attaching a 16bit latch to the bus.
 124
 125 config GPIO_MPC5200
 126         def_bool y
 127         depends on PPC_MPC52xx
 128
 129 config GPIO_MPC8XXX
 130         bool "MPC512x/MPC8xxx GPIO support"
 131         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 132                    FSL_SOC_BOOKE || PPC_86xx
 133         help
 134           Say Y here if you're going to use hardware that connects to the
 135           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 136
 137 config GPIO_MSM_V1
 138         tristate "Qualcomm MSM GPIO v1"
 139         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 140         help
 141           Say yes here to support the GPIO interface on ARM v6 based
 142           Qualcomm MSM chips.  Most of the pins on the MSM can be
 143           selected for GPIO, and are controlled by this driver.
 144
 145 config GPIO_MSM_V2
 146         tristate "Qualcomm MSM GPIO v2"
 147         depends on GPIOLIB && ARCH_MSM
 148         help
 149           Say yes here to support the GPIO interface on ARM v7 based
 150           Qualcomm MSM chips.  Most of the pins on the MSM can be
 151           selected for GPIO, and are controlled by this driver.
 152
 153 config GPIO_MXC
 154         def_bool y
 155         depends on ARCH_MXC
 156         select GPIO_GENERIC
 157         select GENERIC_IRQ_CHIP
 158
 159 config GPIO_MXS
 160         def_bool y
 161         depends on ARCH_MXS
 162         select GPIO_GENERIC
 163         select GENERIC_IRQ_CHIP
 164
 165 config GPIO_PL061
 166         bool "PrimeCell PL061 GPIO support"
 167         depends on ARM_AMBA
 168         select GENERIC_IRQ_CHIP
 169         help
 170           Say yes here to support the PrimeCell PL061 GPIO device
 171
 172 config GPIO_PXA
 173         bool "PXA GPIO support"
 174         depends on ARCH_PXA || ARCH_MMP
 175         help
 176           Say yes here to support the PXA GPIO device
 177
 178 config GPIO_STA2X11
 179         bool "STA2x11/ConneXt GPIO support"
 180         depends on MFD_STA2X11
 181         select GENERIC_IRQ_CHIP
 182         help
 183           Say yes here to support the STA2x11/ConneXt GPIO device.
 184           The GPIO module has 128 GPIO pins with alternate functions.
 185
 186 config GPIO_XILINX
 187         bool "Xilinx GPIO support"
 188         depends on PPC_OF || MICROBLAZE
 189         help
 190           Say yes here to support the Xilinx FPGA GPIO device
 191
 192 config GPIO_VR41XX
 193         tristate "NEC VR4100 series General-purpose I/O Uint support"
 194         depends on CPU_VR41XX
 195         help
 196           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 197
 198 config GPIO_SCH
 199         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 200         depends on PCI && X86
 201         select MFD_CORE
 202         select LPC_SCH
 203         help
 204           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 205           Intel Tunnel Creek processor or Intel Centerton processor.
 206           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 207           powered by the core power rail and are turned off during sleep
 208           modes (S3 and higher). The remaining four GPIOs are powered by
 209           the Intel SCH suspend power supply. These GPIOs remain
 210           active during S3. The suspend powered GPIOs can be used to wake the
 211           system from the Suspend-to-RAM state.
 212           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 213           core power rail and 9 from suspend power supply.
 214           The Intel Centerton processor has a total of 30 GPIO pins.
 215           Twenty-one are powered by the core power rail and 9 from the
 216           suspend power supply.
 217
 218 config GPIO_ICH
 219         tristate "Intel ICH GPIO"
 220         depends on PCI && X86
 221         select MFD_CORE
 222         select LPC_ICH
 223         help
 224           Say yes here to support the GPIO functionality of a number of Intel
 225           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 226           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 227           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 228
 229           If unsure, say N.
 230
 231 config GPIO_VX855
 232         tristate "VIA VX855/VX875 GPIO"
 233         depends on PCI
 234         select MFD_CORE
 235         select MFD_VX855
 236         help
 237           Support access to the VX855/VX875 GPIO lines through the gpio library.
 238
 239           This driver provides common support for accessing the device,
 240           additional drivers must be enabled in order to use the
 241           functionality of the device.
 242
 243 config GPIO_GE_FPGA
 244         bool "GE FPGA based GPIO"
 245         depends on GE_FPGA
 246         help
 247           Support for common GPIO functionality provided on some GE Single Board
 248           Computers.
 249
 250           This driver provides basic support (configure as input or output, read
 251           and write pin state) for GPIO implemented in a number of GE single
 252           board computers.
 253
 254 comment "I2C GPIO expanders:"
 255
 256 config GPIO_ARIZONA
 257         tristate "Wolfson Microelectronics Arizona class devices"
 258         depends on MFD_ARIZONA
 259         help
 260           Support for GPIOs on Wolfson Arizona class devices.
 261
 262 config GPIO_MAX7300
 263         tristate "Maxim MAX7300 GPIO expander"
 264         depends on I2C
 265         select GPIO_MAX730X
 266         help
 267           GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
 268
 269 config GPIO_MAX732X
 270         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 271         depends on I2C
 272         help
 273           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 274           Port Expanders. Each IO port on these chips has a fixed role of
 275           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 276           Input and Output (designed by 'P'). The combinations are listed
 277           below:
 278
 279           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 280                         max7322 (4I4O), max7323 (4P4O)
 281
 282           16 bits:      max7324 (8I8O), max7325 (8P8O),
 283                         max7326 (4I12O), max7327 (4P12O)
 284
 285           Board setup code must specify the model to use, and the start
 286           number for these GPIOs.
 287
 288 config GPIO_MAX732X_IRQ
 289         bool "Interrupt controller support for MAX732x"
 290         depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
 291         help
 292           Say yes here to enable the max732x to be used as an interrupt
 293           controller. It requires the driver to be built in the kernel.
 294
 295 config GPIO_MC9S08DZ60
 296         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 297         depends on I2C && MACH_MX35_3DS
 298         help
 299           Select this to enable the MC9S08DZ60 GPIO driver
 300
 301 config GPIO_PCA953X
 302         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 303         depends on I2C
 304         help
 305           Say yes here to provide access to several register-oriented
 306           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 307           models include:
 308
 309           4 bits:       pca9536, pca9537
 310
 311           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 312                         pca9556, pca9557, pca9574, tca6408
 313
 314           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 315                         tca6416
 316
 317 config GPIO_PCA953X_IRQ
 318         bool "Interrupt controller support for PCA953x"
 319         depends on GPIO_PCA953X=y
 320         help
 321           Say yes here to enable the pca953x to be used as an interrupt
 322           controller. It requires the driver to be built in the kernel.
 323
 324 config GPIO_PCF857X
 325         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 326         depends on I2C
 327         help
 328           Say yes here to provide access to most "quasi-bidirectional" I2C
 329           GPIO expanders used for additional digital outputs or inputs.
 330           Most of these parts are from NXP, though TI is a second source for
 331           some of them.  Compatible models include:
 332
 333           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 334                     pca9670, pca9672, pca9674, pca9674a,
 335                     max7328, max7329
 336
 337           16 bits:  pcf8575, pcf8575c, pca8575,
 338                     pca9671, pca9673, pca9675
 339
 340           Your board setup code will need to declare the expanders in
 341           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 342           can then be used from drivers and other kernel code, just like
 343           other GPIOs, but only accessible from task contexts.
 344
 345           This driver provides an in-kernel interface to those GPIOs using
 346           platform-neutral GPIO calls.
 347
 348 config GPIO_RC5T583
 349         bool "RICOH RC5T583 GPIO"
 350         depends on MFD_RC5T583
 351         help
 352           Select this option to enable GPIO driver for the Ricoh RC5T583
 353           chip family.
 354           This driver provides the support for driving/reading the gpio pins
 355           of RC5T583 device through standard gpio library.
 356
 357 config GPIO_SX150X
 358         bool "Semtech SX150x I2C GPIO expander"
 359         depends on I2C=y
 360         default n
 361         help
 362           Say yes here to provide support for Semtech SX150-series I2C
 363           GPIO expanders. Compatible models include:
 364
 365           8 bits:  sx1508q
 366           16 bits: sx1509q
 367
 368 config GPIO_STMPE
 369         bool "STMPE GPIOs"
 370         depends on MFD_STMPE
 371         help
 372           This enables support for the GPIOs found on the STMPE I/O
 373           Expanders.
 374
 375 config GPIO_STP_XWAY
 376         bool "XWAY STP GPIOs"
 377         depends on SOC_XWAY
 378         help
 379           This enables support for the Serial To Parallel (STP) unit found on
 380           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 381           that can be up to 24 bit. This peripheral is aimed at driving leds.
 382           Some of the gpios/leds can be auto updated by the soc with dsl and
 383           phy status.
 384
 385 config GPIO_TC3589X
 386         bool "TC3589X GPIOs"
 387         depends on MFD_TC3589X
 388         help
 389           This enables support for the GPIOs found on the TC3589X
 390           I/O Expander.
 391
 392 config GPIO_TPS65912
 393         tristate "TI TPS65912 GPIO"
 394         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 395         help
 396           This driver supports TPS65912 gpio chip
 397
 398 config GPIO_TWL4030
 399         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 400         depends on TWL4030_CORE
 401         help
 402           Say yes here to access the GPIO signals of various multi-function
 403           power management chips from Texas Instruments.
 404
 405 config GPIO_TWL6040
 406         tristate "TWL6040 GPO"
 407         depends on TWL6040_CORE
 408         help
 409           Say yes here to access the GPO signals of twl6040
 410           audio chip from Texas Instruments.
 411
 412 config GPIO_WM831X
 413         tristate "WM831x GPIOs"
 414         depends on MFD_WM831X
 415         help
 416           Say yes here to access the GPIO signals of WM831x power management
 417           chips from Wolfson Microelectronics.
 418
 419 config GPIO_WM8350
 420         tristate "WM8350 GPIOs"
 421         depends on MFD_WM8350
 422         help
 423           Say yes here to access the GPIO signals of WM8350 power management
 424           chips from Wolfson Microelectronics.
 425
 426 config GPIO_WM8994
 427         tristate "WM8994 GPIOs"
 428         depends on MFD_WM8994
 429         help
 430           Say yes here to access the GPIO signals of WM8994 audio hub
 431           CODECs from Wolfson Microelectronics.
 432
 433 config GPIO_ADP5520
 434         tristate "GPIO Support for ADP5520 PMIC"
 435         depends on PMIC_ADP5520
 436         help
 437           This option enables support for on-chip GPIO found
 438           on Analog Devices ADP5520 PMICs.
 439
 440 config GPIO_ADP5588
 441         tristate "ADP5588 I2C GPIO expander"
 442         depends on I2C
 443         help
 444           This option enables support for 18 GPIOs found
 445           on Analog Devices ADP5588 GPIO Expanders.
 446
 447 config GPIO_ADP5588_IRQ
 448         bool "Interrupt controller support for ADP5588"
 449         depends on GPIO_ADP5588=y
 450         help
 451           Say yes here to enable the adp5588 to be used as an interrupt
 452           controller. It requires the driver to be built in the kernel.
 453
 454 comment "PCI GPIO expanders:"
 455
 456 config GPIO_CS5535
 457         tristate "AMD CS5535/CS5536 GPIO support"
 458         depends on PCI && X86 && MFD_CS5535
 459         help
 460           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 461           can be used for quite a number of things.  The CS5535/6 is found on
 462           AMD Geode and Lemote Yeeloong devices.
 463
 464           If unsure, say N.
 465
 466 config GPIO_BT8XX
 467         tristate "BT8XX GPIO abuser"
 468         depends on PCI && VIDEO_BT848=n
 469         help
 470           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 471           as a cheap PCI GPIO card.
 472
 473           This chip can be found on Miro, Hauppauge and STB TV-cards.
 474
 475           The card needs to be physically altered for using it as a
 476           GPIO card. For more information on how to build a GPIO card
 477           from a BT8xx TV card, see the documentation file at
 478           Documentation/bt8xxgpio.txt
 479
 480           If unsure, say N.
 481
 482 config GPIO_AMD8111
 483         tristate "AMD 8111 GPIO driver"
 484         depends on PCI
 485         help
 486           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 487
 488           Note, that usually system firmware/ACPI handles GPIO pins on their
 489           own and users might easily break their systems with uncarefull usage
 490           of this driver!
 491
 492           If unsure, say N
 493
 494 config GPIO_LANGWELL
 495         bool "Intel Langwell/Penwell GPIO support"
 496         depends on PCI && X86
 497         select IRQ_DOMAIN
 498         help
 499           Say Y here to support Intel Langwell/Penwell GPIO.
 500
 501 config GPIO_PCH
 502         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 503         depends on PCI && X86
 504         select GENERIC_IRQ_CHIP
 505         help
 506           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 507           which is an IOH(Input/Output Hub) for x86 embedded processor.
 508           This driver can access PCH GPIO device.
 509
 510           This driver also can be used for LAPIS Semiconductor IOH(Input/
 511           Output Hub), ML7223 and ML7831.
 512           ML7223 IOH is for MP(Media Phone) use.
 513           ML7831 IOH is for general purpose use.
 514           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 515           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 516
 517 config GPIO_ML_IOH
 518         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 519         depends on PCI
 520         select GENERIC_IRQ_CHIP
 521         help
 522           ML7213 is companion chip for Intel Atom E6xx series.
 523           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 524           Hub) which is for IVI(In-Vehicle Infotainment) use.
 525           This driver can access the IOH's GPIO device.
 526
 527 config GPIO_SODAVILLE
 528         bool "Intel Sodaville GPIO support"
 529         depends on X86 && PCI && OF
 530         select GPIO_GENERIC
 531         select GENERIC_IRQ_CHIP
 532         help
 533           Say Y here to support Intel Sodaville GPIO.
 534
 535 config GPIO_TIMBERDALE
 536         bool "Support for timberdale GPIO IP"
 537         depends on MFD_TIMBERDALE && HAS_IOMEM
 538         ---help---
 539         Add support for the GPIO IP in the timberdale FPGA.
 540
 541 config GPIO_RDC321X
 542         tristate "RDC R-321x GPIO support"
 543         depends on PCI
 544         select MFD_CORE
 545         select MFD_RDC321X
 546         help
 547           Support for the RDC R321x SoC GPIOs over southbridge
 548           PCI configuration space.
 549
 550 comment "SPI GPIO expanders:"
 551
 552 config GPIO_MAX7301
 553         tristate "Maxim MAX7301 GPIO expander"
 554         depends on SPI_MASTER
 555         select GPIO_MAX730X
 556         help
 557           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 558
 559 config GPIO_MCP23S08
 560         tristate "Microchip MCP23xxx I/O expander"
 561         depends on SPI_MASTER || I2C
 562         help
 563           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 564           I/O expanders.
 565           This provides a GPIO interface supporting inputs and outputs.
 566
 567 config GPIO_MC33880
 568         tristate "Freescale MC33880 high-side/low-side switch"
 569         depends on SPI_MASTER
 570         help
 571           SPI driver for Freescale MC33880 high-side/low-side switch.
 572           This provides GPIO interface supporting inputs and outputs.
 573
 574 config GPIO_74X164
 575         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 576         depends on SPI_MASTER
 577         help
 578           Platform driver for 74x164 compatible serial-in/parallel-out
 579           8-outputs shift registers. This driver can be used to provide access
 580           to more gpio outputs.
 581
 582 comment "AC97 GPIO expanders:"
 583
 584 config GPIO_UCB1400
 585         bool "Philips UCB1400 GPIO"
 586         depends on UCB1400_CORE
 587         help
 588           This enables support for the Philips UCB1400 GPIO pins.
 589           The UCB1400 is an AC97 audio codec.
 590
 591 comment "MODULbus GPIO expanders:"
 592
 593 config GPIO_JANZ_TTL
 594         tristate "Janz VMOD-TTL Digital IO Module"
 595         depends on MFD_JANZ_CMODIO
 596         help
 597           This enables support for the Janz VMOD-TTL Digital IO module.
 598           This driver provides support for driving the pins in output
 599           mode only. Input mode is not supported.
 600
 601 config GPIO_AB8500
 602         bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
 603         depends on AB8500_CORE && BROKEN
 604         help
 605           Select this to enable the AB8500 IC GPIO driver
 606
 607 config GPIO_TPS6586X
 608         bool "TPS6586X GPIO"
 609         depends on MFD_TPS6586X
 610         help
 611           Select this option to enable GPIO driver for the TPS6586X
 612           chip family.
 613
 614 config GPIO_TPS65910
 615         bool "TPS65910 GPIO"
 616         depends on MFD_TPS65910
 617         help
 618           Select this option to enable GPIO driver for the TPS65910
 619           chip family.
 620
 621 config GPIO_MSIC
 622         bool "Intel MSIC mixed signal gpio support"
 623         depends on MFD_INTEL_MSIC
 624         help
 625           Enable support for GPIO on intel MSIC controllers found in
 626           intel MID devices
 627
 628 endif