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