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_MPC5200
 118         def_bool y
 119         depends on PPC_MPC52xx
 120
 121 config GPIO_MPC8XXX
 122         bool "MPC512x/MPC8xxx GPIO support"
 123         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 124                    FSL_SOC_BOOKE || PPC_86xx
 125         help
 126           Say Y here if you're going to use hardware that connects to the
 127           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 128
 129 config GPIO_MSM_V1
 130         tristate "Qualcomm MSM GPIO v1"
 131         depends on GPIOLIB && ARCH_MSM
 132         help
 133           Say yes here to support the GPIO interface on ARM v6 based
 134           Qualcomm MSM chips.  Most of the pins on the MSM can be
 135           selected for GPIO, and are controlled by this driver.
 136
 137 config GPIO_MSM_V2
 138         tristate "Qualcomm MSM GPIO v2"
 139         depends on GPIOLIB && ARCH_MSM
 140         help
 141           Say yes here to support the GPIO interface on ARM v7 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_MXC
 146         def_bool y
 147         depends on ARCH_MXC
 148         select GPIO_GENERIC
 149         select GENERIC_IRQ_CHIP
 150
 151 config GPIO_MXS
 152         def_bool y
 153         depends on ARCH_MXS
 154         select GPIO_GENERIC
 155         select GENERIC_IRQ_CHIP
 156
 157 config GPIO_PL061
 158         bool "PrimeCell PL061 GPIO support"
 159         depends on ARM_AMBA
 160         select GENERIC_IRQ_CHIP
 161         help
 162           Say yes here to support the PrimeCell PL061 GPIO device
 163
 164 config GPIO_PXA
 165         bool "PXA GPIO support"
 166         depends on ARCH_PXA || ARCH_MMP
 167         help
 168           Say yes here to support the PXA GPIO device
 169
 170 config GPIO_STA2X11
 171         bool "STA2x11/ConneXt GPIO support"
 172         depends on MFD_STA2X11
 173         select GENERIC_IRQ_CHIP
 174         help
 175           Say yes here to support the STA2x11/ConneXt GPIO device.
 176           The GPIO module has 128 GPIO pins with alternate functions.
 177
 178 config GPIO_XILINX
 179         bool "Xilinx GPIO support"
 180         depends on PPC_OF || MICROBLAZE
 181         help
 182           Say yes here to support the Xilinx FPGA GPIO device
 183
 184 config GPIO_VR41XX
 185         tristate "NEC VR4100 series General-purpose I/O Uint support"
 186         depends on CPU_VR41XX
 187         help
 188           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 189
 190 config GPIO_SCH
 191         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 192         depends on PCI && X86
 193         select MFD_CORE
 194         select LPC_SCH
 195         help
 196           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 197           Intel Tunnel Creek processor or Intel Centerton processor.
 198           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 199           powered by the core power rail and are turned off during sleep
 200           modes (S3 and higher). The remaining four GPIOs are powered by
 201           the Intel SCH suspend power supply. These GPIOs remain
 202           active during S3. The suspend powered GPIOs can be used to wake the
 203           system from the Suspend-to-RAM state.
 204           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 205           core power rail and 9 from suspend power supply.
 206           The Intel Centerton processor has a total of 30 GPIO pins.
 207           Twenty-one are powered by the core power rail and 9 from the
 208           suspend power supply.
 209
 210 config GPIO_ICH
 211         tristate "Intel ICH GPIO"
 212         depends on PCI && X86
 213         select MFD_CORE
 214         select LPC_ICH
 215         help
 216           Say yes here to support the GPIO functionality of a number of Intel
 217           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 218           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 219           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 220
 221           If unsure, say N.
 222
 223 config GPIO_VX855
 224         tristate "VIA VX855/VX875 GPIO"
 225         depends on PCI
 226         select MFD_CORE
 227         select MFD_VX855
 228         help
 229           Support access to the VX855/VX875 GPIO lines through the gpio library.
 230
 231           This driver provides common support for accessing the device,
 232           additional drivers must be enabled in order to use the
 233           functionality of the device.
 234
 235 config GPIO_GE_FPGA
 236         bool "GE FPGA based GPIO"
 237         depends on GE_FPGA
 238         help
 239           Support for common GPIO functionality provided on some GE Single Board
 240           Computers.
 241
 242           This driver provides basic support (configure as input or output, read
 243           and write pin state) for GPIO implemented in a number of GE single
 244           board computers.
 245
 246 comment "I2C GPIO expanders:"
 247
 248 config GPIO_MAX7300
 249         tristate "Maxim MAX7300 GPIO expander"
 250         depends on I2C
 251         select GPIO_MAX730X
 252         help
 253           GPIO driver for Maxim MAX7301 I2C-based GPIO expander.
 254
 255 config GPIO_MAX732X
 256         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 257         depends on I2C
 258         help
 259           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 260           Port Expanders. Each IO port on these chips has a fixed role of
 261           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 262           Input and Output (designed by 'P'). The combinations are listed
 263           below:
 264
 265           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 266                         max7322 (4I4O), max7323 (4P4O)
 267
 268           16 bits:      max7324 (8I8O), max7325 (8P8O),
 269                         max7326 (4I12O), max7327 (4P12O)
 270
 271           Board setup code must specify the model to use, and the start
 272           number for these GPIOs.
 273
 274 config GPIO_MAX732X_IRQ
 275         bool "Interrupt controller support for MAX732x"
 276         depends on GPIO_MAX732X=y && GENERIC_HARDIRQS
 277         help
 278           Say yes here to enable the max732x to be used as an interrupt
 279           controller. It requires the driver to be built in the kernel.
 280
 281 config GPIO_MC9S08DZ60
 282         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 283         depends on I2C && MACH_MX35_3DS
 284         help
 285           Select this to enable the MC9S08DZ60 GPIO driver
 286
 287 config GPIO_PCA953X
 288         tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports"
 289         depends on I2C
 290         help
 291           Say yes here to provide access to several register-oriented
 292           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 293           models include:
 294
 295           4 bits:       pca9536, pca9537
 296
 297           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 298                         pca9556, pca9557, pca9574, tca6408
 299
 300           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 301                         tca6416
 302
 303 config GPIO_PCA953X_IRQ
 304         bool "Interrupt controller support for PCA953x"
 305         depends on GPIO_PCA953X=y
 306         help
 307           Say yes here to enable the pca953x to be used as an interrupt
 308           controller. It requires the driver to be built in the kernel.
 309
 310 config GPIO_PCF857X
 311         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 312         depends on I2C
 313         help
 314           Say yes here to provide access to most "quasi-bidirectional" I2C
 315           GPIO expanders used for additional digital outputs or inputs.
 316           Most of these parts are from NXP, though TI is a second source for
 317           some of them.  Compatible models include:
 318
 319           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 320                     pca9670, pca9672, pca9674, pca9674a,
 321                     max7328, max7329
 322
 323           16 bits:  pcf8575, pcf8575c, pca8575,
 324                     pca9671, pca9673, pca9675
 325
 326           Your board setup code will need to declare the expanders in
 327           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 328           can then be used from drivers and other kernel code, just like
 329           other GPIOs, but only accessible from task contexts.
 330
 331           This driver provides an in-kernel interface to those GPIOs using
 332           platform-neutral GPIO calls.
 333
 334 config GPIO_RC5T583
 335         bool "RICOH RC5T583 GPIO"
 336         depends on MFD_RC5T583
 337         help
 338           Select this option to enable GPIO driver for the Ricoh RC5T583
 339           chip family.
 340           This driver provides the support for driving/reading the gpio pins
 341           of RC5T583 device through standard gpio library.
 342
 343 config GPIO_SX150X
 344         bool "Semtech SX150x I2C GPIO expander"
 345         depends on I2C=y
 346         default n
 347         help
 348           Say yes here to provide support for Semtech SX150-series I2C
 349           GPIO expanders. Compatible models include:
 350
 351           8 bits:  sx1508q
 352           16 bits: sx1509q
 353
 354 config GPIO_STMPE
 355         bool "STMPE GPIOs"
 356         depends on MFD_STMPE
 357         help
 358           This enables support for the GPIOs found on the STMPE I/O
 359           Expanders.
 360
 361 config GPIO_TC3589X
 362         bool "TC3589X GPIOs"
 363         depends on MFD_TC3589X
 364         help
 365           This enables support for the GPIOs found on the TC3589X
 366           I/O Expander.
 367
 368 config GPIO_TPS65912
 369         tristate "TI TPS65912 GPIO"
 370         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 371         help
 372           This driver supports TPS65912 gpio chip
 373
 374 config GPIO_TWL4030
 375         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 376         depends on TWL4030_CORE
 377         help
 378           Say yes here to access the GPIO signals of various multi-function
 379           power management chips from Texas Instruments.
 380
 381 config GPIO_WM831X
 382         tristate "WM831x GPIOs"
 383         depends on MFD_WM831X
 384         help
 385           Say yes here to access the GPIO signals of WM831x power management
 386           chips from Wolfson Microelectronics.
 387
 388 config GPIO_WM8350
 389         tristate "WM8350 GPIOs"
 390         depends on MFD_WM8350
 391         help
 392           Say yes here to access the GPIO signals of WM8350 power management
 393           chips from Wolfson Microelectronics.
 394
 395 config GPIO_WM8994
 396         tristate "WM8994 GPIOs"
 397         depends on MFD_WM8994
 398         help
 399           Say yes here to access the GPIO signals of WM8994 audio hub
 400           CODECs from Wolfson Microelectronics.
 401
 402 config GPIO_ADP5520
 403         tristate "GPIO Support for ADP5520 PMIC"
 404         depends on PMIC_ADP5520
 405         help
 406           This option enables support for on-chip GPIO found
 407           on Analog Devices ADP5520 PMICs.
 408
 409 config GPIO_ADP5588
 410         tristate "ADP5588 I2C GPIO expander"
 411         depends on I2C
 412         help
 413           This option enables support for 18 GPIOs found
 414           on Analog Devices ADP5588 GPIO Expanders.
 415
 416 config GPIO_ADP5588_IRQ
 417         bool "Interrupt controller support for ADP5588"
 418         depends on GPIO_ADP5588=y
 419         help
 420           Say yes here to enable the adp5588 to be used as an interrupt
 421           controller. It requires the driver to be built in the kernel.
 422
 423 comment "PCI GPIO expanders:"
 424
 425 config GPIO_CS5535
 426         tristate "AMD CS5535/CS5536 GPIO support"
 427         depends on PCI && X86 && MFD_CS5535
 428         help
 429           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 430           can be used for quite a number of things.  The CS5535/6 is found on
 431           AMD Geode and Lemote Yeeloong devices.
 432
 433           If unsure, say N.
 434
 435 config GPIO_BT8XX
 436         tristate "BT8XX GPIO abuser"
 437         depends on PCI && VIDEO_BT848=n
 438         help
 439           The BT8xx frame grabber chip has 24 GPIO pins than can be abused
 440           as a cheap PCI GPIO card.
 441
 442           This chip can be found on Miro, Hauppauge and STB TV-cards.
 443
 444           The card needs to be physically altered for using it as a
 445           GPIO card. For more information on how to build a GPIO card
 446           from a BT8xx TV card, see the documentation file at
 447           Documentation/bt8xxgpio.txt
 448
 449           If unsure, say N.
 450
 451 config GPIO_LANGWELL
 452         bool "Intel Langwell/Penwell GPIO support"
 453         depends on PCI && X86
 454         select IRQ_DOMAIN
 455         help
 456           Say Y here to support Intel Langwell/Penwell GPIO.
 457
 458 config GPIO_PCH
 459         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 460         depends on PCI && X86
 461         select GENERIC_IRQ_CHIP
 462         help
 463           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 464           which is an IOH(Input/Output Hub) for x86 embedded processor.
 465           This driver can access PCH GPIO device.
 466
 467           This driver also can be used for LAPIS Semiconductor IOH(Input/
 468           Output Hub), ML7223 and ML7831.
 469           ML7223 IOH is for MP(Media Phone) use.
 470           ML7831 IOH is for general purpose use.
 471           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 472           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 473
 474 config GPIO_ML_IOH
 475         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 476         depends on PCI
 477         select GENERIC_IRQ_CHIP
 478         help
 479           ML7213 is companion chip for Intel Atom E6xx series.
 480           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 481           Hub) which is for IVI(In-Vehicle Infotainment) use.
 482           This driver can access the IOH's GPIO device.
 483
 484 config GPIO_SODAVILLE
 485         bool "Intel Sodaville GPIO support"
 486         depends on X86 && PCI && OF
 487         select GPIO_GENERIC
 488         select GENERIC_IRQ_CHIP
 489         help
 490           Say Y here to support Intel Sodaville GPIO.
 491
 492 config GPIO_TIMBERDALE
 493         bool "Support for timberdale GPIO IP"
 494         depends on MFD_TIMBERDALE && HAS_IOMEM
 495         ---help---
 496         Add support for the GPIO IP in the timberdale FPGA.
 497
 498 config GPIO_RDC321X
 499         tristate "RDC R-321x GPIO support"
 500         depends on PCI
 501         select MFD_CORE
 502         select MFD_RDC321X
 503         help
 504           Support for the RDC R321x SoC GPIOs over southbridge
 505           PCI configuration space.
 506
 507 comment "SPI GPIO expanders:"
 508
 509 config GPIO_MAX7301
 510         tristate "Maxim MAX7301 GPIO expander"
 511         depends on SPI_MASTER
 512         select GPIO_MAX730X
 513         help
 514           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 515
 516 config GPIO_MCP23S08
 517         tristate "Microchip MCP23xxx I/O expander"
 518         depends on SPI_MASTER || I2C
 519         help
 520           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 521           I/O expanders.
 522           This provides a GPIO interface supporting inputs and outputs.
 523
 524 config GPIO_MC33880
 525         tristate "Freescale MC33880 high-side/low-side switch"
 526         depends on SPI_MASTER
 527         help
 528           SPI driver for Freescale MC33880 high-side/low-side switch.
 529           This provides GPIO interface supporting inputs and outputs.
 530
 531 config GPIO_74X164
 532         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 533         depends on SPI_MASTER
 534         help
 535           Platform driver for 74x164 compatible serial-in/parallel-out
 536           8-outputs shift registers. This driver can be used to provide access
 537           to more gpio outputs.
 538
 539 comment "AC97 GPIO expanders:"
 540
 541 config GPIO_UCB1400
 542         bool "Philips UCB1400 GPIO"
 543         depends on UCB1400_CORE
 544         help
 545           This enables support for the Philips UCB1400 GPIO pins.
 546           The UCB1400 is an AC97 audio codec.
 547
 548 comment "MODULbus GPIO expanders:"
 549
 550 config GPIO_JANZ_TTL
 551         tristate "Janz VMOD-TTL Digital IO Module"
 552         depends on MFD_JANZ_CMODIO
 553         help
 554           This enables support for the Janz VMOD-TTL Digital IO module.
 555           This driver provides support for driving the pins in output
 556           mode only. Input mode is not supported.
 557
 558 config GPIO_AB8500
 559         bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions"
 560         depends on AB8500_CORE && BROKEN
 561         help
 562           Select this to enable the AB8500 IC GPIO driver
 563
 564 config GPIO_TPS65910
 565         bool "TPS65910 GPIO"
 566         depends on MFD_TPS65910
 567         help
 568           Select this option to enable GPIO driver for the TPS65910
 569           chip family.
 570
 571 config GPIO_MSIC
 572         bool "Intel MSIC mixed signal gpio support"
 573         depends on MFD_INTEL_MSIC
 574         help
 575           Enable support for GPIO on intel MSIC controllers found in
 576           intel MID devices
 577
 578 endif