drivers/gpio/Kconfig

   1 #
   2 # GPIO infrastructure and drivers
   3 #
   4
   5 config ARCH_HAVE_CUSTOM_GPIO_H
   6         bool
   7         help
   8           Selecting this config option from the architecture Kconfig allows
   9           the architecture to provide a custom asm/gpio.h implementation
  10           overriding the default implementations.  New uses of this are
  11           strongly discouraged.
  12
  13 config ARCH_WANT_OPTIONAL_GPIOLIB
  14         bool
  15         help
  16           Select this config option from the architecture Kconfig, if
  17           it is possible to use gpiolib on the architecture, but let the
  18           user decide whether to actually build it or not.
  19           Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
  20           not depend on GPIOs being available, but rather let the user
  21           decide whether he needs it or not.
  22
  23 config ARCH_REQUIRE_GPIOLIB
  24         bool
  25         select GPIOLIB
  26         help
  27           Platforms select gpiolib if they use this infrastructure
  28           for all their GPIOs, usually starting with ones integrated
  29           into SOC processors.
  30           Selecting this from the architecture code will cause the gpiolib
  31           code to always get built in.
  32
  33
  34 menuconfig GPIOLIB
  35         bool "GPIO Support"
  36         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  37         help
  38           This enables GPIO support through the generic GPIO library.
  39           You only need to enable this, if you also want to enable
  40           one or more of the GPIO drivers below.
  41
  42           If unsure, say N.
  43
  44 if GPIOLIB
  45
  46 config GPIO_DEVRES
  47         def_bool y
  48         depends on HAS_IOMEM
  49
  50 config OF_GPIO
  51         def_bool y
  52         depends on OF
  53
  54 config GPIO_ACPI
  55         def_bool y
  56         depends on ACPI
  57
  58 config GPIOLIB_IRQCHIP
  59         bool
  60
  61 config DEBUG_GPIO
  62         bool "Debug GPIO calls"
  63         depends on DEBUG_KERNEL
  64         help
  65           Say Y here to add some extra checks and diagnostics to GPIO calls.
  66           These checks help ensure that GPIOs have been properly initialized
  67           before they are used, and that sleeping calls are not made from
  68           non-sleeping contexts.  They can make bitbanged serial protocols
  69           slower.  The diagnostics help catch the type of setup errors
  70           that are most common when setting up new platforms or boards.
  71
  72 config GPIO_SYSFS
  73         bool "/sys/class/gpio/... (sysfs interface)"
  74         depends on SYSFS
  75         help
  76           Say Y here to add a sysfs interface for GPIOs.
  77
  78           This is mostly useful to work around omissions in a system's
  79           kernel support.  Those are common in custom and semicustom
  80           hardware assembled using standard kernels with a minimum of
  81           custom patches.  In those cases, userspace code may import
  82           a given GPIO from the kernel, if no kernel driver requested it.
  83
  84           Kernel drivers may also request that a particular GPIO be
  85           exported to userspace; this can be useful when debugging.
  86
  87 config GPIO_GENERIC
  88         tristate
  89
  90 # put drivers in the right section, in alphabetical order
  91
  92 config GPIO_DA9052
  93         tristate "Dialog DA9052 GPIO"
  94         depends on PMIC_DA9052
  95         help
  96           Say yes here to enable the GPIO driver for the DA9052 chip.
  97
  98 config GPIO_DA9055
  99         tristate "Dialog Semiconductor DA9055 GPIO"
 100         depends on MFD_DA9055
 101         help
 102           Say yes here to enable the GPIO driver for the DA9055 chip.
 103
 104           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 105           be controller by this driver.
 106
 107           If driver is built as a module it will be called gpio-da9055.
 108
 109 config GPIO_MAX730X
 110         tristate
 111
 112 comment "Memory mapped GPIO drivers:"
 113
 114 config GPIO_CLPS711X
 115         tristate "CLPS711X GPIO support"
 116         depends on ARCH_CLPS711X || COMPILE_TEST
 117         select GPIO_GENERIC
 118         help
 119           Say yes here to support GPIO on CLPS711X SoCs.
 120
 121 config GPIO_DAVINCI
 122         bool "TI Davinci/Keystone GPIO support"
 123         default y if ARCH_DAVINCI
 124         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 125         help
 126           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 127
 128 config GPIO_GENERIC_PLATFORM
 129         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 130         select GPIO_GENERIC
 131         help
 132           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 133
 134 config GPIO_DWAPB
 135         tristate "Synopsys DesignWare APB GPIO driver"
 136         select GPIO_GENERIC
 137         select GENERIC_IRQ_CHIP
 138         depends on OF_GPIO
 139         help
 140           Say Y or M here to build support for the Synopsys DesignWare APB
 141           GPIO block.
 142
 143 config GPIO_IT8761E
 144         tristate "IT8761E GPIO support"
 145         depends on X86  # unconditional access to IO space.
 146         help
 147           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 148
 149 config GPIO_EM
 150         tristate "Emma Mobile GPIO"
 151         depends on ARM && OF_GPIO
 152         help
 153           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 154
 155 config GPIO_EP93XX
 156         def_bool y
 157         depends on ARCH_EP93XX
 158         select GPIO_GENERIC
 159
 160 config GPIO_ZEVIO
 161         bool "LSI ZEVIO SoC memory mapped GPIOs"
 162         depends on ARM && OF_GPIO
 163         help
 164           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 165
 166 config GPIO_MM_LANTIQ
 167         bool "Lantiq Memory mapped GPIOs"
 168         depends on LANTIQ && SOC_XWAY
 169         help
 170           This enables support for memory mapped GPIOs on the External Bus Unit
 171           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 172           created by attaching a 16bit latch to the bus.
 173
 174 config GPIO_F7188X
 175         tristate "F71882FG and F71889F GPIO support"
 176         depends on X86
 177         help
 178           This option enables support for GPIOs found on Fintek Super-I/O
 179           chips F71882FG and F71889F.
 180
 181           To compile this driver as a module, choose M here: the module will
 182           be called f7188x-gpio.
 183
 184 config GPIO_MOXART
 185         bool "MOXART GPIO support"
 186         depends on ARCH_MOXART
 187         help
 188           Select this option to enable GPIO driver for
 189           MOXA ART SoC devices.
 190
 191 config GPIO_MPC5200
 192         def_bool y
 193         depends on PPC_MPC52xx
 194
 195 config GPIO_MPC8XXX
 196         bool "MPC512x/MPC8xxx GPIO support"
 197         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 198                    FSL_SOC_BOOKE || PPC_86xx
 199         help
 200           Say Y here if you're going to use hardware that connects to the
 201           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 202
 203 config GPIO_MSM_V1
 204         tristate "Qualcomm MSM GPIO v1"
 205         depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50)
 206         help
 207           Say yes here to support the GPIO interface on ARM v6 based
 208           Qualcomm MSM chips.  Most of the pins on the MSM can be
 209           selected for GPIO, and are controlled by this driver.
 210
 211 config GPIO_MSM_V2
 212         tristate "Qualcomm MSM GPIO v2"
 213         depends on GPIOLIB && OF && ARCH_QCOM
 214         help
 215           Say yes here to support the GPIO interface on ARM v7 based
 216           Qualcomm MSM chips.  Most of the pins on the MSM can be
 217           selected for GPIO, and are controlled by this driver.
 218
 219 config GPIO_MVEBU
 220         def_bool y
 221         depends on PLAT_ORION
 222         depends on OF
 223         select GPIO_GENERIC
 224         select GENERIC_IRQ_CHIP
 225
 226 config GPIO_MXC
 227         def_bool y
 228         depends on ARCH_MXC
 229         select GPIO_GENERIC
 230         select GENERIC_IRQ_CHIP
 231
 232 config GPIO_MXS
 233         def_bool y
 234         depends on ARCH_MXS
 235         select GPIO_GENERIC
 236         select GENERIC_IRQ_CHIP
 237
 238 config GPIO_OCTEON
 239         tristate "Cavium OCTEON GPIO"
 240         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 241         default y
 242         help
 243           Say yes here to support the on-chip GPIO lines on the OCTEON
 244           family of SOCs.
 245
 246 config GPIO_PL061
 247         bool "PrimeCell PL061 GPIO support"
 248         depends on ARM_AMBA
 249         select IRQ_DOMAIN
 250         select GPIOLIB_IRQCHIP
 251         help
 252           Say yes here to support the PrimeCell PL061 GPIO device
 253
 254 config GPIO_PXA
 255         bool "PXA GPIO support"
 256         depends on ARCH_PXA || ARCH_MMP
 257         help
 258           Say yes here to support the PXA GPIO device
 259
 260 config GPIO_RCAR
 261         tristate "Renesas R-Car GPIO"
 262         depends on ARM
 263         help
 264           Say yes here to support GPIO on Renesas R-Car SoCs.
 265
 266 config GPIO_SAMSUNG
 267         bool
 268         depends on PLAT_SAMSUNG
 269         help
 270           Legacy GPIO support. Use only for platforms without support for
 271           pinctrl.
 272
 273 config GPIO_SCH311X
 274         tristate "SMSC SCH311x SuperI/O GPIO"
 275         help
 276           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 277           SCH3116 "Super I/O" chipsets.
 278
 279           To compile this driver as a module, choose M here: the module will
 280           be called gpio-sch311x.
 281
 282 config GPIO_SPEAR_SPICS
 283         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 284         depends on PLAT_SPEAR
 285         select GENERIC_IRQ_CHIP
 286         help
 287           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 288
 289 config GPIO_STA2X11
 290         bool "STA2x11/ConneXt GPIO support"
 291         depends on MFD_STA2X11
 292         select GENERIC_IRQ_CHIP
 293         help
 294           Say yes here to support the STA2x11/ConneXt GPIO device.
 295           The GPIO module has 128 GPIO pins with alternate functions.
 296
 297 config GPIO_SYSCON
 298         tristate "GPIO based on SYSCON"
 299         depends on MFD_SYSCON && OF
 300         help
 301           Say yes here to support GPIO functionality though SYSCON driver.
 302
 303 config GPIO_TS5500
 304         tristate "TS-5500 DIO blocks and compatibles"
 305         depends on TS5500 || COMPILE_TEST
 306         help
 307           This driver supports Digital I/O exposed by pin blocks found on some
 308           Technologic Systems platforms. It includes, but is not limited to, 3
 309           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 310           LCD port.
 311
 312 config GPIO_TZ1090
 313         bool "Toumaz Xenif TZ1090 GPIO support"
 314         depends on SOC_TZ1090
 315         select GENERIC_IRQ_CHIP
 316         default y
 317         help
 318           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 319
 320 config GPIO_TZ1090_PDC
 321         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 322         depends on SOC_TZ1090
 323         default y
 324         help
 325           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 326
 327 config GPIO_XILINX
 328         bool "Xilinx GPIO support"
 329         depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ
 330         help
 331           Say yes here to support the Xilinx FPGA GPIO device
 332
 333 config GPIO_XTENSA
 334         bool "Xtensa GPIO32 support"
 335         depends on XTENSA
 336         depends on HAVE_XTENSA_GPIO32
 337         depends on !SMP
 338         help
 339           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 340           and EXPSTATE (output) ports
 341
 342 config GPIO_VR41XX
 343         tristate "NEC VR4100 series General-purpose I/O Uint support"
 344         depends on CPU_VR41XX
 345         help
 346           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 347
 348 config GPIO_SCH
 349         tristate "Intel SCH/TunnelCreek/Centerton GPIO"
 350         depends on PCI && X86
 351         select MFD_CORE
 352         select LPC_SCH
 353         help
 354           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 355           Intel Tunnel Creek processor or Intel Centerton processor.
 356           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 357           powered by the core power rail and are turned off during sleep
 358           modes (S3 and higher). The remaining four GPIOs are powered by
 359           the Intel SCH suspend power supply. These GPIOs remain
 360           active during S3. The suspend powered GPIOs can be used to wake the
 361           system from the Suspend-to-RAM state.
 362           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 363           core power rail and 9 from suspend power supply.
 364           The Intel Centerton processor has a total of 30 GPIO pins.
 365           Twenty-one are powered by the core power rail and 9 from the
 366           suspend power supply.
 367
 368 config GPIO_ICH
 369         tristate "Intel ICH GPIO"
 370         depends on PCI && X86
 371         select MFD_CORE
 372         select LPC_ICH
 373         help
 374           Say yes here to support the GPIO functionality of a number of Intel
 375           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 376           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 377           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 378
 379           If unsure, say N.
 380
 381 config GPIO_IOP
 382         tristate "Intel IOP GPIO"
 383         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 384         help
 385           Say yes here to support the GPIO functionality of a number of Intel
 386           IOP32X or IOP33X.
 387
 388           If unsure, say N.
 389
 390 config GPIO_VX855
 391         tristate "VIA VX855/VX875 GPIO"
 392         depends on PCI
 393         select MFD_CORE
 394         select MFD_VX855
 395         help
 396           Support access to the VX855/VX875 GPIO lines through the gpio library.
 397
 398           This driver provides common support for accessing the device,
 399           additional drivers must be enabled in order to use the
 400           functionality of the device.
 401
 402 config GPIO_GE_FPGA
 403         bool "GE FPGA based GPIO"
 404         depends on GE_FPGA
 405         help
 406           Support for common GPIO functionality provided on some GE Single Board
 407           Computers.
 408
 409           This driver provides basic support (configure as input or output, read
 410           and write pin state) for GPIO implemented in a number of GE single
 411           board computers.
 412
 413 config GPIO_LYNXPOINT
 414         tristate "Intel Lynxpoint GPIO support"
 415         depends on ACPI && X86
 416         select IRQ_DOMAIN
 417         help
 418           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 419           Requires ACPI device enumeration code to set up a platform device.
 420
 421 config GPIO_GRGPIO
 422         tristate "Aeroflex Gaisler GRGPIO support"
 423         depends on OF
 424         select GPIO_GENERIC
 425         select IRQ_DOMAIN
 426         help
 427           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 428           VHDL IP core library.
 429
 430 config GPIO_TB10X
 431         bool
 432         select GENERIC_IRQ_CHIP
 433         select OF_GPIO
 434
 435 comment "I2C GPIO expanders:"
 436
 437 config GPIO_ARIZONA
 438         tristate "Wolfson Microelectronics Arizona class devices"
 439         depends on MFD_ARIZONA
 440         help
 441           Support for GPIOs on Wolfson Arizona class devices.
 442
 443 config GPIO_LP3943
 444         tristate "TI/National Semiconductor LP3943 GPIO expander"
 445         depends on MFD_LP3943
 446         help
 447           GPIO driver for LP3943 MFD.
 448           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 449           Open drain outputs are required for this usage.
 450
 451 config GPIO_MAX7300
 452         tristate "Maxim MAX7300 GPIO expander"
 453         depends on I2C
 454         select GPIO_MAX730X
 455         help
 456           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 457
 458 config GPIO_MAX732X
 459         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 460         depends on I2C
 461         help
 462           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 463           Port Expanders. Each IO port on these chips has a fixed role of
 464           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 465           Input and Output (designed by 'P'). The combinations are listed
 466           below:
 467
 468           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 469                         max7322 (4I4O), max7323 (4P4O)
 470
 471           16 bits:      max7324 (8I8O), max7325 (8P8O),
 472                         max7326 (4I12O), max7327 (4P12O)
 473
 474           Board setup code must specify the model to use, and the start
 475           number for these GPIOs.
 476
 477 config GPIO_MAX732X_IRQ
 478         bool "Interrupt controller support for MAX732x"
 479         depends on GPIO_MAX732X=y
 480         help
 481           Say yes here to enable the max732x to be used as an interrupt
 482           controller. It requires the driver to be built in the kernel.
 483
 484 config GPIO_MC9S08DZ60
 485         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 486         depends on I2C=y && MACH_MX35_3DS
 487         help
 488           Select this to enable the MC9S08DZ60 GPIO driver
 489
 490 config GPIO_PCA953X
 491         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 492         depends on I2C
 493         help
 494           Say yes here to provide access to several register-oriented
 495           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 496           models include:
 497
 498           4 bits:       pca9536, pca9537
 499
 500           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 501                         pca9556, pca9557, pca9574, tca6408, xra1202
 502
 503           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 504                         tca6416
 505
 506           24 bits:      tca6424
 507
 508           40 bits:      pca9505, pca9698
 509
 510 config GPIO_PCA953X_IRQ
 511         bool "Interrupt controller support for PCA953x"
 512         depends on GPIO_PCA953X=y
 513         help
 514           Say yes here to enable the pca953x to be used as an interrupt
 515           controller. It requires the driver to be built in the kernel.
 516
 517 config GPIO_PCF857X
 518         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 519         depends on I2C
 520         select IRQ_DOMAIN
 521         help
 522           Say yes here to provide access to most "quasi-bidirectional" I2C
 523           GPIO expanders used for additional digital outputs or inputs.
 524           Most of these parts are from NXP, though TI is a second source for
 525           some of them.  Compatible models include:
 526
 527           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 528                     pca9670, pca9672, pca9674, pca9674a,
 529                     max7328, max7329
 530
 531           16 bits:  pcf8575, pcf8575c, pca8575,
 532                     pca9671, pca9673, pca9675
 533
 534           Your board setup code will need to declare the expanders in
 535           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 536           can then be used from drivers and other kernel code, just like
 537           other GPIOs, but only accessible from task contexts.
 538
 539           This driver provides an in-kernel interface to those GPIOs using
 540           platform-neutral GPIO calls.
 541
 542 config GPIO_RC5T583
 543         bool "RICOH RC5T583 GPIO"
 544         depends on MFD_RC5T583
 545         help
 546           Select this option to enable GPIO driver for the Ricoh RC5T583
 547           chip family.
 548           This driver provides the support for driving/reading the gpio pins
 549           of RC5T583 device through standard gpio library.
 550
 551 config GPIO_SX150X
 552         bool "Semtech SX150x I2C GPIO expander"
 553         depends on I2C=y
 554         default n
 555         help
 556           Say yes here to provide support for Semtech SX150-series I2C
 557           GPIO expanders. Compatible models include:
 558
 559           8 bits:  sx1508q
 560           16 bits: sx1509q
 561
 562 config GPIO_STMPE
 563         bool "STMPE GPIOs"
 564         depends on MFD_STMPE
 565         help
 566           This enables support for the GPIOs found on the STMPE I/O
 567           Expanders.
 568
 569 config GPIO_STP_XWAY
 570         bool "XWAY STP GPIOs"
 571         depends on SOC_XWAY
 572         help
 573           This enables support for the Serial To Parallel (STP) unit found on
 574           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 575           that can be up to 24 bit. This peripheral is aimed at driving leds.
 576           Some of the gpios/leds can be auto updated by the soc with dsl and
 577           phy status.
 578
 579 config GPIO_TC3589X
 580         bool "TC3589X GPIOs"
 581         depends on MFD_TC3589X
 582         help
 583           This enables support for the GPIOs found on the TC3589X
 584           I/O Expander.
 585
 586 config GPIO_TPS65912
 587         tristate "TI TPS65912 GPIO"
 588         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 589         help
 590           This driver supports TPS65912 gpio chip
 591
 592 config GPIO_TWL4030
 593         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 594         depends on TWL4030_CORE
 595         help
 596           Say yes here to access the GPIO signals of various multi-function
 597           power management chips from Texas Instruments.
 598
 599 config GPIO_TWL6040
 600         tristate "TWL6040 GPO"
 601         depends on TWL6040_CORE
 602         help
 603           Say yes here to access the GPO signals of twl6040
 604           audio chip from Texas Instruments.
 605
 606 config GPIO_WM831X
 607         tristate "WM831x GPIOs"
 608         depends on MFD_WM831X
 609         help
 610           Say yes here to access the GPIO signals of WM831x power management
 611           chips from Wolfson Microelectronics.
 612
 613 config GPIO_WM8350
 614         tristate "WM8350 GPIOs"
 615         depends on MFD_WM8350
 616         help
 617           Say yes here to access the GPIO signals of WM8350 power management
 618           chips from Wolfson Microelectronics.
 619
 620 config GPIO_WM8994
 621         tristate "WM8994 GPIOs"
 622         depends on MFD_WM8994
 623         help
 624           Say yes here to access the GPIO signals of WM8994 audio hub
 625           CODECs from Wolfson Microelectronics.
 626
 627 config GPIO_ADP5520
 628         tristate "GPIO Support for ADP5520 PMIC"
 629         depends on PMIC_ADP5520
 630         help
 631           This option enables support for on-chip GPIO found
 632           on Analog Devices ADP5520 PMICs.
 633
 634 config GPIO_ADP5588
 635         tristate "ADP5588 I2C GPIO expander"
 636         depends on I2C
 637         help
 638           This option enables support for 18 GPIOs found
 639           on Analog Devices ADP5588 GPIO Expanders.
 640
 641 config GPIO_ADP5588_IRQ
 642         bool "Interrupt controller support for ADP5588"
 643         depends on GPIO_ADP5588=y
 644         help
 645           Say yes here to enable the adp5588 to be used as an interrupt
 646           controller. It requires the driver to be built in the kernel.
 647
 648 config GPIO_ADNP
 649         tristate "Avionic Design N-bit GPIO expander"
 650         depends on I2C && OF_GPIO
 651         help
 652           This option enables support for N GPIOs found on Avionic Design
 653           I2C GPIO expanders. The register space will be extended by powers
 654           of two, so the controller will need to accommodate for that. For
 655           example: if a controller provides 48 pins, 6 registers will be
 656           enough to represent all pins, but the driver will assume a
 657           register layout for 64 pins (8 registers).
 658
 659 comment "PCI GPIO expanders:"
 660
 661 config GPIO_CS5535
 662         tristate "AMD CS5535/CS5536 GPIO support"
 663         depends on MFD_CS5535
 664         help
 665           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 666           can be used for quite a number of things.  The CS5535/6 is found on
 667           AMD Geode and Lemote Yeeloong devices.
 668
 669           If unsure, say N.
 670
 671 config GPIO_BT8XX
 672         tristate "BT8XX GPIO abuser"
 673         depends on PCI && VIDEO_BT848=n
 674         help
 675           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 676           as a cheap PCI GPIO card.
 677
 678           This chip can be found on Miro, Hauppauge and STB TV-cards.
 679
 680           The card needs to be physically altered for using it as a
 681           GPIO card. For more information on how to build a GPIO card
 682           from a BT8xx TV card, see the documentation file at
 683           Documentation/bt8xxgpio.txt
 684
 685           If unsure, say N.
 686
 687 config GPIO_AMD8111
 688         tristate "AMD 8111 GPIO driver"
 689         depends on PCI
 690         help
 691           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 692
 693           Note, that usually system firmware/ACPI handles GPIO pins on their
 694           own and users might easily break their systems with uncarefull usage
 695           of this driver!
 696
 697           If unsure, say N
 698
 699 config GPIO_INTEL_MID
 700         bool "Intel Mid GPIO support"
 701         depends on PCI && X86
 702         select IRQ_DOMAIN
 703         help
 704           Say Y here to support Intel Mid GPIO.
 705
 706 config GPIO_PCH
 707         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 708         depends on PCI && X86
 709         select GENERIC_IRQ_CHIP
 710         help
 711           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 712           which is an IOH(Input/Output Hub) for x86 embedded processor.
 713           This driver can access PCH GPIO device.
 714
 715           This driver also can be used for LAPIS Semiconductor IOH(Input/
 716           Output Hub), ML7223 and ML7831.
 717           ML7223 IOH is for MP(Media Phone) use.
 718           ML7831 IOH is for general purpose use.
 719           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 720           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 721
 722 config GPIO_ML_IOH
 723         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 724         depends on PCI
 725         select GENERIC_IRQ_CHIP
 726         help
 727           ML7213 is companion chip for Intel Atom E6xx series.
 728           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 729           Hub) which is for IVI(In-Vehicle Infotainment) use.
 730           This driver can access the IOH's GPIO device.
 731
 732 config GPIO_SODAVILLE
 733         bool "Intel Sodaville GPIO support"
 734         depends on X86 && PCI && OF
 735         select GPIO_GENERIC
 736         select GENERIC_IRQ_CHIP
 737         help
 738           Say Y here to support Intel Sodaville GPIO.
 739
 740 config GPIO_TIMBERDALE
 741         bool "Support for timberdale GPIO IP"
 742         depends on MFD_TIMBERDALE && HAS_IOMEM
 743         ---help---
 744         Add support for the GPIO IP in the timberdale FPGA.
 745
 746 config GPIO_RDC321X
 747         tristate "RDC R-321x GPIO support"
 748         depends on PCI
 749         select MFD_CORE
 750         select MFD_RDC321X
 751         help
 752           Support for the RDC R321x SoC GPIOs over southbridge
 753           PCI configuration space.
 754
 755 comment "SPI GPIO expanders:"
 756
 757 config GPIO_MAX7301
 758         tristate "Maxim MAX7301 GPIO expander"
 759         depends on SPI_MASTER
 760         select GPIO_MAX730X
 761         help
 762           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 763
 764 config GPIO_MCP23S08
 765         tristate "Microchip MCP23xxx I/O expander"
 766         depends on OF_GPIO
 767         depends on (SPI_MASTER && !I2C) || I2C
 768         help
 769           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 770           I/O expanders.
 771           This provides a GPIO interface supporting inputs and outputs.
 772           The I2C versions of the chips can be used as interrupt-controller.
 773
 774 config GPIO_MC33880
 775         tristate "Freescale MC33880 high-side/low-side switch"
 776         depends on SPI_MASTER
 777         help
 778           SPI driver for Freescale MC33880 high-side/low-side switch.
 779           This provides GPIO interface supporting inputs and outputs.
 780
 781 config GPIO_74X164
 782         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 783         depends on SPI_MASTER && OF
 784         help
 785           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 786           shift registers. This driver can be used to provide access
 787           to more gpio outputs.
 788
 789 comment "AC97 GPIO expanders:"
 790
 791 config GPIO_UCB1400
 792         tristate "Philips UCB1400 GPIO"
 793         depends on UCB1400_CORE
 794         help
 795           This enables support for the Philips UCB1400 GPIO pins.
 796           The UCB1400 is an AC97 audio codec.
 797
 798 comment "LPC GPIO expanders:"
 799
 800 config GPIO_KEMPLD
 801         tristate "Kontron ETX / COMexpress GPIO"
 802         depends on MFD_KEMPLD
 803         help
 804           This enables support for the PLD GPIO interface on some Kontron ETX
 805           and COMexpress (ETXexpress) modules.
 806
 807           This driver can also be built as a module. If so, the module will be
 808           called gpio-kempld.
 809
 810 comment "MODULbus GPIO expanders:"
 811
 812 config GPIO_JANZ_TTL
 813         tristate "Janz VMOD-TTL Digital IO Module"
 814         depends on MFD_JANZ_CMODIO
 815         help
 816           This enables support for the Janz VMOD-TTL Digital IO module.
 817           This driver provides support for driving the pins in output
 818           mode only. Input mode is not supported.
 819
 820 config GPIO_PALMAS
 821         bool "TI PALMAS series PMICs GPIO"
 822         depends on MFD_PALMAS
 823         help
 824           Select this option to enable GPIO driver for the TI PALMAS
 825           series chip family.
 826
 827 config GPIO_TPS6586X
 828         bool "TPS6586X GPIO"
 829         depends on MFD_TPS6586X
 830         help
 831           Select this option to enable GPIO driver for the TPS6586X
 832           chip family.
 833
 834 config GPIO_TPS65910
 835         bool "TPS65910 GPIO"
 836         depends on MFD_TPS65910
 837         help
 838           Select this option to enable GPIO driver for the TPS65910
 839           chip family.
 840
 841 config GPIO_MSIC
 842         bool "Intel MSIC mixed signal gpio support"
 843         depends on MFD_INTEL_MSIC
 844         help
 845           Enable support for GPIO on intel MSIC controllers found in
 846           intel MID devices
 847
 848 config GPIO_BCM_KONA
 849         bool "Broadcom Kona GPIO"
 850         depends on OF_GPIO
 851         help
 852           Turn on GPIO support for Broadcom "Kona" chips.
 853
 854 comment "USB GPIO expanders:"
 855
 856 config GPIO_VIPERBOARD
 857         tristate "Viperboard GPIO a & b support"
 858         depends on MFD_VIPERBOARD && USB
 859         help
 860           Say yes here to access the GPIO signals of Nano River
 861           Technologies Viperboard. There are two GPIO chips on the
 862           board: gpioa and gpiob.
 863           See viperboard API specification and Nano
 864           River Tech's viperboard.h for detailed meaning
 865           of the module parameters.
 866
 867 endif