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_MAX7300
 257         tristate "Maxim MAX7300 GPIO expander"
 258         depends on I2C
 259         select GPIO_MAX730X
 260         help
 261           GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
 262
 263 config GPIO_MAX732X
 264         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 265         depends on I2C
 266         help
 267           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 268           Port Expanders. Each IO port on these chips has a fixed role of
 269           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 270           Input and Output (designed by 'P'). The combinations are listed
 271           below:
 272
 273           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 274                         max7322 (4I4O), max7323 (4P4O)
 275
 276           16 bits:      max7324 (8I8O), max7325 (8P8O),
 277                         max7326 (4I12O), max7327 (4P12O)
 278
 279           Board setup code must specify the model to use, and the start
 280           number for these GPIOs.
 281
 282 config GPIO_MAX732X_IRQ
 283         bool "Interrupt controller support for MAX732x"
 284         depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
 285         help
 286           Say yes here to enable the max732x to be used as an interrupt
 287           controller. It requires the driver to be built in the kernel.
 288
 289 config GPIO_MC9S08DZ60
 290         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 291         depends on I2C && MACH_MX35_3DS
 292         help
 293           Select this to enable the MC9S08DZ60 GPIO driver
 294
 295 config GPIO_PCA953X
 296         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 297         depends on I2C
 298         help
 299           Say yes here to provide access to several register-oriented
 300           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 301           models include:
 302
 303           4 bits:       pca9536, pca9537
 304
 305           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 306                         pca9556, pca9557, pca9574, tca6408
 307
 308           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 309                         tca6416
 310
 311 config GPIO_PCA953X_IRQ
 312         bool "Interrupt controller support for PCA953x"
 313         depends on GPIO_PCA953X=y
 314         help
 315           Say yes here to enable the pca953x to be used as an interrupt
 316           controller. It requires the driver to be built in the kernel.
 317
 318 config GPIO_PCF857X
 319         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 320         depends on I2C
 321         help
 322           Say yes here to provide access to most "quasi-bidirectional" I2C
 323           GPIO expanders used for additional digital outputs or inputs.
 324           Most of these parts are from NXP, though TI is a second source for
 325           some of them.  Compatible models include:
 326
 327           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 328                     pca9670, pca9672, pca9674, pca9674a,
 329                     max7328, max7329
 330
 331           16 bits:  pcf8575, pcf8575c, pca8575,
 332                     pca9671, pca9673, pca9675
 333
 334           Your board setup code will need to declare the expanders in
 335           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 336           can then be used from drivers and other kernel code, just like
 337           other GPIOs, but only accessible from task contexts.
 338
 339           This driver provides an in-kernel interface to those GPIOs using
 340           platform-neutral GPIO calls.
 341
 342 config GPIO_RC5T583
 343         bool "RICOH RC5T583 GPIO"
 344         depends on MFD_RC5T583
 345         help
 346           Select this option to enable GPIO driver for the Ricoh RC5T583
 347           chip family.
 348           This driver provides the support for driving/reading the gpio pins
 349           of RC5T583 device through standard gpio library.
 350
 351 config GPIO_SX150X
 352         bool "Semtech SX150x I2C GPIO expander"
 353         depends on I2C=y
 354         default n
 355         help
 356           Say yes here to provide support for Semtech SX150-series I2C
 357           GPIO expanders. Compatible models include:
 358
 359           8 bits:  sx1508q
 360           16 bits: sx1509q
 361
 362 config GPIO_STMPE
 363         bool "STMPE GPIOs"
 364         depends on MFD_STMPE
 365         help
 366           This enables support for the GPIOs found on the STMPE I/O
 367           Expanders.
 368
 369 config GPIO_STP_XWAY
 370         bool "XWAY STP GPIOs"
 371         depends on SOC_XWAY
 372         help
 373           This enables support for the Serial To Parallel (STP) unit found on
 374           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 375           that can be up to 24 bit. This peripheral is aimed at driving leds.
 376           Some of the gpios/leds can be auto updated by the soc with dsl and
 377           phy status.
 378
 379 config GPIO_TC3589X
 380         bool "TC3589X GPIOs"
 381         depends on MFD_TC3589X
 382         help
 383           This enables support for the GPIOs found on the TC3589X
 384           I/O Expander.
 385
 386 config GPIO_TPS65912
 387         tristate "TI TPS65912 GPIO"
 388         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 389         help
 390           This driver supports TPS65912 gpio chip
 391
 392 config GPIO_TWL4030
 393         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 394         depends on TWL4030_CORE
 395         help
 396           Say yes here to access the GPIO signals of various multi-function
 397           power management chips from Texas Instruments.
 398
 399 config GPIO_WM831X
 400         tristate "WM831x GPIOs"
 401         depends on MFD_WM831X
 402         help
 403           Say yes here to access the GPIO signals of WM831x power management
 404           chips from Wolfson Microelectronics.
 405
 406 config GPIO_WM8350
 407         tristate "WM8350 GPIOs"
 408         depends on MFD_WM8350
 409         help
 410           Say yes here to access the GPIO signals of WM8350 power management
 411           chips from Wolfson Microelectronics.
 412
 413 config GPIO_WM8994
 414         tristate "WM8994 GPIOs"
 415         depends on MFD_WM8994
 416         help
 417           Say yes here to access the GPIO signals of WM8994 audio hub
 418           CODECs from Wolfson Microelectronics.
 419
 420 config GPIO_ADP5520
 421         tristate "GPIO Support for ADP5520 PMIC"
 422         depends on PMIC_ADP5520
 423         help
 424           This option enables support for on-chip GPIO found
 425           on Analog Devices ADP5520 PMICs.
 426
 427 config GPIO_ADP5588
 428         tristate "ADP5588 I2C GPIO expander"
 429         depends on I2C
 430         help
 431           This option enables support for 18 GPIOs found
 432           on Analog Devices ADP5588 GPIO Expanders.
 433
 434 config GPIO_ADP5588_IRQ
 435         bool "Interrupt controller support for ADP5588"
 436         depends on GPIO_ADP5588=y
 437         help
 438           Say yes here to enable the adp5588 to be used as an interrupt
 439           controller. It requires the driver to be built in the kernel.
 440
 441 comment "PCI GPIO expanders:"
 442
 443 config GPIO_CS5535
 444         tristate "AMD CS5535/CS5536 GPIO support"
 445         depends on PCI && X86 && MFD_CS5535
 446         help
 447           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 448           can be used for quite a number of things.  The CS5535/6 is found on
 449           AMD Geode and Lemote Yeeloong devices.
 450
 451           If unsure, say N.
 452
 453 config GPIO_BT8XX
 454         tristate "BT8XX GPIO abuser"
 455         depends on PCI && VIDEO_BT848=n
 456         help
 457           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 458           as a cheap PCI GPIO card.
 459
 460           This chip can be found on Miro, Hauppauge and STB TV-cards.
 461
 462           The card needs to be physically altered for using it as a
 463           GPIO card. For more information on how to build a GPIO card
 464           from a BT8xx TV card, see the documentation file at
 465           Documentation/bt8xxgpio.txt
 466
 467           If unsure, say N.
 468
 469 config GPIO_LANGWELL
 470         bool "Intel Langwell/Penwell GPIO support"
 471         depends on PCI && X86
 472         select IRQ_DOMAIN
 473         help
 474           Say Y here to support Intel Langwell/Penwell GPIO.
 475
 476 config GPIO_PCH
 477         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 478         depends on PCI && X86
 479         select GENERIC_IRQ_CHIP
 480         help
 481           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 482           which is an IOH(Input/Output Hub) for x86 embedded processor.
 483           This driver can access PCH GPIO device.
 484
 485           This driver also can be used for LAPIS Semiconductor IOH(Input/
 486           Output Hub), ML7223 and ML7831.
 487           ML7223 IOH is for MP(Media Phone) use.
 488           ML7831 IOH is for general purpose use.
 489           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 490           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 491
 492 config GPIO_ML_IOH
 493         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 494         depends on PCI
 495         select GENERIC_IRQ_CHIP
 496         help
 497           ML7213 is companion chip for Intel Atom E6xx series.
 498           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 499           Hub) which is for IVI(In-Vehicle Infotainment) use.
 500           This driver can access the IOH's GPIO device.
 501
 502 config GPIO_SODAVILLE
 503         bool "Intel Sodaville GPIO support"
 504         depends on X86 && PCI && OF
 505         select GPIO_GENERIC
 506         select GENERIC_IRQ_CHIP
 507         help
 508           Say Y here to support Intel Sodaville GPIO.
 509
 510 config GPIO_TIMBERDALE
 511         bool "Support for timberdale GPIO IP"
 512         depends on MFD_TIMBERDALE && HAS_IOMEM
 513         ---help---
 514         Add support for the GPIO IP in the timberdale FPGA.
 515
 516 config GPIO_RDC321X
 517         tristate "RDC R-321x GPIO support"
 518         depends on PCI
 519         select MFD_CORE
 520         select MFD_RDC321X
 521         help
 522           Support for the RDC R321x SoC GPIOs over southbridge
 523           PCI configuration space.
 524
 525 comment "SPI GPIO expanders:"
 526
 527 config GPIO_MAX7301
 528         tristate "Maxim MAX7301 GPIO expander"
 529         depends on SPI_MASTER
 530         select GPIO_MAX730X
 531         help
 532           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 533
 534 config GPIO_MCP23S08
 535         tristate "Microchip MCP23xxx I/O expander"
 536         depends on SPI_MASTER || I2C
 537         help
 538           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 539           I/O expanders.
 540           This provides a GPIO interface supporting inputs and outputs.
 541
 542 config GPIO_MC33880
 543         tristate "Freescale MC33880 high-side/low-side switch"
 544         depends on SPI_MASTER
 545         help
 546           SPI driver for Freescale MC33880 high-side/low-side switch.
 547           This provides GPIO interface supporting inputs and outputs.
 548
 549 config GPIO_74X164
 550         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 551         depends on SPI_MASTER
 552         help
 553           Platform driver for 74x164 compatible serial-in/parallel-out
 554           8-outputs shift registers. This driver can be used to provide access
 555           to more gpio outputs.
 556
 557 comment "AC97 GPIO expanders:"
 558
 559 config GPIO_UCB1400
 560         bool "Philips UCB1400 GPIO"
 561         depends on UCB1400_CORE
 562         help
 563           This enables support for the Philips UCB1400 GPIO pins.
 564           The UCB1400 is an AC97 audio codec.
 565
 566 comment "MODULbus GPIO expanders:"
 567
 568 config GPIO_JANZ_TTL
 569         tristate "Janz VMOD-TTL Digital IO Module"
 570         depends on MFD_JANZ_CMODIO
 571         help
 572           This enables support for the Janz VMOD-TTL Digital IO module.
 573           This driver provides support for driving the pins in output
 574           mode only. Input mode is not supported.
 575
 576 config GPIO_AB8500
 577         bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
 578         depends on AB8500_CORE && BROKEN
 579         help
 580           Select this to enable the AB8500 IC GPIO driver
 581
 582 config GPIO_TPS65910
 583         bool "TPS65910 GPIO"
 584         depends on MFD_TPS65910
 585         help
 586           Select this option to enable GPIO driver for the TPS65910
 587           chip family.
 588
 589 config GPIO_MSIC
 590         bool "Intel MSIC mixed signal gpio support"
 591         depends on MFD_INTEL_MSIC
 592         help
 593           Enable support for GPIO on intel MSIC controllers found in
 594           intel MID devices
 595
 596 endif