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         select IRQ_DOMAIN
  60         bool
  61
  62 config DEBUG_GPIO
  63         bool "Debug GPIO calls"
  64         depends on DEBUG_KERNEL
  65         help
  66           Say Y here to add some extra checks and diagnostics to GPIO calls.
  67           These checks help ensure that GPIOs have been properly initialized
  68           before they are used, and that sleeping calls are not made from
  69           non-sleeping contexts.  They can make bitbanged serial protocols
  70           slower.  The diagnostics help catch the type of setup errors
  71           that are most common when setting up new platforms or boards.
  72
  73 config GPIO_SYSFS
  74         bool "/sys/class/gpio/... (sysfs interface)"
  75         depends on SYSFS
  76         help
  77           Say Y here to add a sysfs interface for GPIOs.
  78
  79           This is mostly useful to work around omissions in a system's
  80           kernel support.  Those are common in custom and semicustom
  81           hardware assembled using standard kernels with a minimum of
  82           custom patches.  In those cases, userspace code may import
  83           a given GPIO from the kernel, if no kernel driver requested it.
  84
  85           Kernel drivers may also request that a particular GPIO be
  86           exported to userspace; this can be useful when debugging.
  87
  88 config GPIO_GENERIC
  89         tristate
  90
  91 # put drivers in the right section, in alphabetical order
  92
  93 # This symbol is selected by both I2C and SPI expanders
  94 config GPIO_MAX730X
  95         tristate
  96
  97 menu "Memory mapped GPIO drivers"
  98
  99 config GPIO_74XX_MMIO
 100         tristate "GPIO driver for 74xx-ICs with MMIO access"
 101         depends on OF_GPIO
 102         select GPIO_GENERIC
 103         help
 104           Say yes here to support GPIO functionality for 74xx-compatible ICs
 105           with MMIO access. Compatible models include:
 106             1 bit:      741G125 (Input), 741G74 (Output)
 107             2 bits:     742G125 (Input), 7474 (Output)
 108             4 bits:     74125 (Input), 74175 (Output)
 109             6 bits:     74365 (Input), 74174 (Output)
 110             8 bits:     74244 (Input), 74273 (Output)
 111             16 bits:    741624 (Input), 7416374 (Output)
 112
 113 config GPIO_ALTERA
 114         tristate "Altera GPIO"
 115         depends on OF_GPIO
 116         select GPIOLIB_IRQCHIP
 117         help
 118           Say Y or M here to build support for the Altera PIO device.
 119
 120           If driver is built as a module it will be called gpio-altera.
 121
 122 config GPIO_AMDPT
 123         tristate "AMD Promontory GPIO support"
 124         depends on ACPI
 125         help
 126           driver for GPIO functionality on Promontory IOHub
 127           Require ACPI ASL code to enumerate as a platform device.
 128
 129 config GPIO_BCM_KONA
 130         bool "Broadcom Kona GPIO"
 131         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 132         help
 133           Turn on GPIO support for Broadcom "Kona" chips.
 134
 135 config GPIO_BRCMSTB
 136         tristate "BRCMSTB GPIO support"
 137         default y if ARCH_BRCMSTB
 138         depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST)
 139         select GPIO_GENERIC
 140         select GPIOLIB_IRQCHIP
 141         help
 142           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 143
 144 config GPIO_CLPS711X
 145         tristate "CLPS711X GPIO support"
 146         depends on ARCH_CLPS711X || COMPILE_TEST
 147         select GPIO_GENERIC
 148         help
 149           Say yes here to support GPIO on CLPS711X SoCs.
 150
 151 config GPIO_DAVINCI
 152         bool "TI Davinci/Keystone GPIO support"
 153         default y if ARCH_DAVINCI
 154         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 155         help
 156           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 157
 158 config GPIO_DWAPB
 159         tristate "Synopsys DesignWare APB GPIO driver"
 160         select GPIO_GENERIC
 161         select GENERIC_IRQ_CHIP
 162         help
 163           Say Y or M here to build support for the Synopsys DesignWare APB
 164           GPIO block.
 165
 166 config GPIO_EM
 167         tristate "Emma Mobile GPIO"
 168         depends on ARM && OF_GPIO
 169         help
 170           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 171
 172 config GPIO_EP93XX
 173         def_bool y
 174         depends on ARCH_EP93XX
 175         select GPIO_GENERIC
 176
 177 config GPIO_ETRAXFS
 178         bool "Axis ETRAX FS General I/O"
 179         depends on CRIS || COMPILE_TEST
 180         depends on OF
 181         select GPIO_GENERIC
 182         select GPIOLIB_IRQCHIP
 183         help
 184           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 185
 186 config GPIO_GE_FPGA
 187         bool "GE FPGA based GPIO"
 188         depends on GE_FPGA
 189         select GPIO_GENERIC
 190         help
 191           Support for common GPIO functionality provided on some GE Single Board
 192           Computers.
 193
 194           This driver provides basic support (configure as input or output, read
 195           and write pin state) for GPIO implemented in a number of GE single
 196           board computers.
 197
 198 config GPIO_GENERIC_PLATFORM
 199         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 200         select GPIO_GENERIC
 201         help
 202           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 203
 204 config GPIO_GRGPIO
 205         tristate "Aeroflex Gaisler GRGPIO support"
 206         depends on OF
 207         select GPIO_GENERIC
 208         select IRQ_DOMAIN
 209         help
 210           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 211           VHDL IP core library.
 212
 213 config GPIO_ICH
 214         tristate "Intel ICH GPIO"
 215         depends on PCI && X86
 216         select MFD_CORE
 217         select LPC_ICH
 218         help
 219           Say yes here to support the GPIO functionality of a number of Intel
 220           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 221           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 222           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 223
 224           If unsure, say N.
 225
 226 config GPIO_IOP
 227         tristate "Intel IOP GPIO"
 228         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 229         help
 230           Say yes here to support the GPIO functionality of a number of Intel
 231           IOP32X or IOP33X.
 232
 233           If unsure, say N.
 234
 235 config GPIO_LOONGSON
 236         bool "Loongson-2/3 GPIO support"
 237         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 238         help
 239           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 240
 241 config GPIO_LPC18XX
 242         bool "NXP LPC18XX/43XX GPIO support"
 243         default y if ARCH_LPC18XX
 244         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 245         help
 246           Select this option to enable GPIO driver for
 247           NXP LPC18XX/43XX devices.
 248
 249 config GPIO_LYNXPOINT
 250         tristate "Intel Lynxpoint GPIO support"
 251         depends on ACPI && X86
 252         select GPIOLIB_IRQCHIP
 253         help
 254           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 255           Requires ACPI device enumeration code to set up a platform device.
 256
 257 config GPIO_MB86S7X
 258         bool "GPIO support for Fujitsu MB86S7x Platforms"
 259         depends on ARCH_MB86S7X
 260         help
 261           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 262
 263 config GPIO_MM_LANTIQ
 264         bool "Lantiq Memory mapped GPIOs"
 265         depends on LANTIQ && SOC_XWAY
 266         help
 267           This enables support for memory mapped GPIOs on the External Bus Unit
 268           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 269           created by attaching a 16bit latch to the bus.
 270
 271 config GPIO_MOXART
 272         bool "MOXART GPIO support"
 273         depends on ARCH_MOXART
 274         select GPIO_GENERIC
 275         help
 276           Select this option to enable GPIO driver for
 277           MOXA ART SoC devices.
 278
 279 config GPIO_MPC5200
 280         def_bool y
 281         depends on PPC_MPC52xx
 282
 283 config GPIO_MPC8XXX
 284         bool "MPC512x/MPC8xxx GPIO support"
 285         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 286                    FSL_SOC_BOOKE || PPC_86xx
 287         help
 288           Say Y here if you're going to use hardware that connects to the
 289           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 290
 291 config GPIO_MVEBU
 292         def_bool y
 293         depends on PLAT_ORION
 294         depends on OF
 295         select GENERIC_IRQ_CHIP
 296
 297 config GPIO_MXC
 298         def_bool y
 299         depends on ARCH_MXC
 300         select GPIO_GENERIC
 301         select GENERIC_IRQ_CHIP
 302
 303 config GPIO_MXS
 304         def_bool y
 305         depends on ARCH_MXS
 306         select GPIO_GENERIC
 307         select GENERIC_IRQ_CHIP
 308
 309 config GPIO_OCTEON
 310         tristate "Cavium OCTEON GPIO"
 311         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 312         default y
 313         help
 314           Say yes here to support the on-chip GPIO lines on the OCTEON
 315           family of SOCs.
 316
 317 config GPIO_OMAP
 318         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 319         default y if ARCH_OMAP
 320         depends on ARM
 321         select GENERIC_IRQ_CHIP
 322         select GPIOLIB_IRQCHIP
 323         help
 324           Say yes here to enable GPIO support for TI OMAP SoCs.
 325
 326 config GPIO_PL061
 327         bool "PrimeCell PL061 GPIO support"
 328         depends on ARM_AMBA
 329         select IRQ_DOMAIN
 330         select GPIOLIB_IRQCHIP
 331         help
 332           Say yes here to support the PrimeCell PL061 GPIO device
 333
 334 config GPIO_PXA
 335         bool "PXA GPIO support"
 336         depends on ARCH_PXA || ARCH_MMP
 337         help
 338           Say yes here to support the PXA GPIO device
 339
 340 config GPIO_RCAR
 341         tristate "Renesas R-Car GPIO"
 342         depends on ARCH_SHMOBILE || COMPILE_TEST
 343         select GPIOLIB_IRQCHIP
 344         help
 345           Say yes here to support GPIO on Renesas R-Car SoCs.
 346
 347 config GPIO_SAMSUNG
 348         bool
 349         depends on PLAT_SAMSUNG
 350         help
 351           Legacy GPIO support. Use only for platforms without support for
 352           pinctrl.
 353
 354 config GPIO_SPEAR_SPICS
 355         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 356         depends on PLAT_SPEAR
 357         select GENERIC_IRQ_CHIP
 358         help
 359           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 360
 361 config GPIO_STA2X11
 362         bool "STA2x11/ConneXt GPIO support"
 363         depends on MFD_STA2X11
 364         select GENERIC_IRQ_CHIP
 365         help
 366           Say yes here to support the STA2x11/ConneXt GPIO device.
 367           The GPIO module has 128 GPIO pins with alternate functions.
 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_SYSCON
 380         tristate "GPIO based on SYSCON"
 381         depends on MFD_SYSCON && OF
 382         help
 383           Say yes here to support GPIO functionality though SYSCON driver.
 384
 385 config GPIO_TB10X
 386         bool
 387         select GENERIC_IRQ_CHIP
 388         select OF_GPIO
 389
 390 config GPIO_TZ1090
 391         bool "Toumaz Xenif TZ1090 GPIO support"
 392         depends on SOC_TZ1090
 393         select GENERIC_IRQ_CHIP
 394         default y
 395         help
 396           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 397
 398 config GPIO_TZ1090_PDC
 399         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 400         depends on SOC_TZ1090
 401         default y
 402         help
 403           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 404
 405 config GPIO_VF610
 406         def_bool y
 407         depends on ARCH_MXC && SOC_VF610
 408         select GPIOLIB_IRQCHIP
 409         help
 410           Say yes here to support Vybrid vf610 GPIOs.
 411
 412 config GPIO_VR41XX
 413         tristate "NEC VR4100 series General-purpose I/O Uint support"
 414         depends on CPU_VR41XX
 415         help
 416           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 417
 418 config GPIO_VX855
 419         tristate "VIA VX855/VX875 GPIO"
 420         depends on PCI
 421         select MFD_CORE
 422         select MFD_VX855
 423         help
 424           Support access to the VX855/VX875 GPIO lines through the gpio library.
 425
 426           This driver provides common support for accessing the device,
 427           additional drivers must be enabled in order to use the
 428           functionality of the device.
 429
 430 config GPIO_XGENE
 431         bool "APM X-Gene GPIO controller support"
 432         depends on ARM64 && OF_GPIO
 433         help
 434           This driver is to support the GPIO block within the APM X-Gene SoC
 435           platform's generic flash controller. The GPIO pins are muxed with
 436           the generic flash controller's address and data pins. Say yes
 437           here to enable the GFC GPIO functionality.
 438
 439 config GPIO_XGENE_SB
 440         tristate "APM X-Gene GPIO standby controller support"
 441         depends on ARCH_XGENE && OF_GPIO
 442         select GPIO_GENERIC
 443         help
 444           This driver supports the GPIO block within the APM X-Gene
 445           Standby Domain. Say yes here to enable the GPIO functionality.
 446
 447 config GPIO_XILINX
 448         tristate "Xilinx GPIO support"
 449         depends on OF_GPIO
 450         help
 451           Say yes here to support the Xilinx FPGA GPIO device
 452
 453 config GPIO_XLP
 454         tristate "Netlogic XLP GPIO support"
 455         depends on CPU_XLP && OF_GPIO
 456         select GPIOLIB_IRQCHIP
 457         help
 458           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 459           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 460           XLP9XX and XLP5XX.
 461
 462           If unsure, say N.
 463
 464 config GPIO_XTENSA
 465         bool "Xtensa GPIO32 support"
 466         depends on XTENSA
 467         depends on HAVE_XTENSA_GPIO32
 468         depends on !SMP
 469         help
 470           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 471           and EXPSTATE (output) ports
 472
 473 config GPIO_ZEVIO
 474         bool "LSI ZEVIO SoC memory mapped GPIOs"
 475         depends on ARM && OF_GPIO
 476         help
 477           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 478
 479 config GPIO_ZYNQ
 480         tristate "Xilinx Zynq GPIO support"
 481         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 482         select GPIOLIB_IRQCHIP
 483         help
 484           Say yes here to support Xilinx Zynq GPIO controller.
 485
 486 config GPIO_ZX
 487         bool "ZTE ZX GPIO support"
 488         select GPIOLIB_IRQCHIP
 489         help
 490           Say yes here to support the GPIO device on ZTE ZX SoCs.
 491
 492 endmenu
 493
 494 menu "Port-mapped I/O GPIO drivers"
 495         depends on X86 # Unconditional I/O space access
 496
 497 config GPIO_104_IDIO_16
 498         tristate "ACCES 104-IDIO-16 GPIO support"
 499         help
 500           Enables GPIO support for the ACCES 104-IDIO-16 family.
 501
 502 config GPIO_F7188X
 503         tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
 504         help
 505           This option enables support for GPIOs found on Fintek Super-I/O
 506           chips F71869, F71869A, F71882FG and F71889F.
 507
 508           To compile this driver as a module, choose M here: the module will
 509           be called f7188x-gpio.
 510
 511 config GPIO_IT87
 512         tristate "IT87xx GPIO support"
 513         help
 514           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 515
 516           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 517           supports the IT8761E Super I/O chip as well.
 518
 519           To compile this driver as a module, choose M here: the module will
 520           be called gpio_it87
 521
 522 config GPIO_SCH
 523         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 524         depends on PCI
 525         select MFD_CORE
 526         select LPC_SCH
 527         help
 528           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 529           Intel Tunnel Creek processor, Intel Centerton processor or
 530           Intel Quark X1000 SoC.
 531
 532           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 533           powered by the core power rail and are turned off during sleep
 534           modes (S3 and higher). The remaining four GPIOs are powered by
 535           the Intel SCH suspend power supply. These GPIOs remain
 536           active during S3. The suspend powered GPIOs can be used to wake the
 537           system from the Suspend-to-RAM state.
 538
 539           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 540           core power rail and 9 from suspend power supply.
 541
 542           The Intel Centerton processor has a total of 30 GPIO pins.
 543           Twenty-one are powered by the core power rail and 9 from the
 544           suspend power supply.
 545
 546           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 547           power well and 6 from the suspend power well.
 548
 549 config GPIO_SCH311X
 550         tristate "SMSC SCH311x SuperI/O GPIO"
 551         help
 552           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 553           SCH3116 "Super I/O" chipsets.
 554
 555           To compile this driver as a module, choose M here: the module will
 556           be called gpio-sch311x.
 557
 558 config GPIO_TS5500
 559         tristate "TS-5500 DIO blocks and compatibles"
 560         depends on TS5500 || COMPILE_TEST
 561         help
 562           This driver supports Digital I/O exposed by pin blocks found on some
 563           Technologic Systems platforms. It includes, but is not limited to, 3
 564           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 565           LCD port.
 566
 567 endmenu
 568
 569 menu "I2C GPIO expanders"
 570         depends on I2C
 571
 572 config GPIO_ADP5588
 573         tristate "ADP5588 I2C GPIO expander"
 574         help
 575           This option enables support for 18 GPIOs found
 576           on Analog Devices ADP5588 GPIO Expanders.
 577
 578 config GPIO_ADP5588_IRQ
 579         bool "Interrupt controller support for ADP5588"
 580         depends on GPIO_ADP5588=y
 581         help
 582           Say yes here to enable the adp5588 to be used as an interrupt
 583           controller. It requires the driver to be built in the kernel.
 584
 585 config GPIO_ADNP
 586         tristate "Avionic Design N-bit GPIO expander"
 587         depends on OF_GPIO
 588         select GPIOLIB_IRQCHIP
 589         help
 590           This option enables support for N GPIOs found on Avionic Design
 591           I2C GPIO expanders. The register space will be extended by powers
 592           of two, so the controller will need to accommodate for that. For
 593           example: if a controller provides 48 pins, 6 registers will be
 594           enough to represent all pins, but the driver will assume a
 595           register layout for 64 pins (8 registers).
 596
 597 config GPIO_MAX7300
 598         tristate "Maxim MAX7300 GPIO expander"
 599         select GPIO_MAX730X
 600         help
 601           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 602
 603 config GPIO_MAX732X
 604         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 605         help
 606           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 607           Port Expanders. Each IO port on these chips has a fixed role of
 608           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 609           Input and Output (designed by 'P'). The combinations are listed
 610           below:
 611
 612           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 613                         max7322 (4I4O), max7323 (4P4O)
 614
 615           16 bits:      max7324 (8I8O), max7325 (8P8O),
 616                         max7326 (4I12O), max7327 (4P12O)
 617
 618           Board setup code must specify the model to use, and the start
 619           number for these GPIOs.
 620
 621 config GPIO_MAX732X_IRQ
 622         bool "Interrupt controller support for MAX732x"
 623         depends on GPIO_MAX732X=y
 624         select GPIOLIB_IRQCHIP
 625         help
 626           Say yes here to enable the max732x to be used as an interrupt
 627           controller. It requires the driver to be built in the kernel.
 628
 629 config GPIO_MC9S08DZ60
 630         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 631         depends on I2C=y && MACH_MX35_3DS
 632         help
 633           Select this to enable the MC9S08DZ60 GPIO driver
 634
 635 config GPIO_PCA953X
 636         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 637         help
 638           Say yes here to provide access to several register-oriented
 639           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 640           models include:
 641
 642           4 bits:       pca9536, pca9537
 643
 644           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 645                         pca9556, pca9557, pca9574, tca6408, xra1202
 646
 647           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 648                         tca6416
 649
 650           24 bits:      tca6424
 651
 652           40 bits:      pca9505, pca9698
 653
 654 config GPIO_PCA953X_IRQ
 655         bool "Interrupt controller support for PCA953x"
 656         depends on GPIO_PCA953X=y
 657         select GPIOLIB_IRQCHIP
 658         help
 659           Say yes here to enable the pca953x to be used as an interrupt
 660           controller. It requires the driver to be built in the kernel.
 661
 662 config GPIO_PCF857X
 663         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 664         select GPIOLIB_IRQCHIP
 665         select IRQ_DOMAIN
 666         help
 667           Say yes here to provide access to most "quasi-bidirectional" I2C
 668           GPIO expanders used for additional digital outputs or inputs.
 669           Most of these parts are from NXP, though TI is a second source for
 670           some of them.  Compatible models include:
 671
 672           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 673                     pca9670, pca9672, pca9674, pca9674a,
 674                     max7328, max7329
 675
 676           16 bits:  pcf8575, pcf8575c, pca8575,
 677                     pca9671, pca9673, pca9675
 678
 679           Your board setup code will need to declare the expanders in
 680           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 681           can then be used from drivers and other kernel code, just like
 682           other GPIOs, but only accessible from task contexts.
 683
 684           This driver provides an in-kernel interface to those GPIOs using
 685           platform-neutral GPIO calls.
 686
 687 config GPIO_SX150X
 688         bool "Semtech SX150x I2C GPIO expander"
 689         depends on I2C=y
 690         select GPIOLIB_IRQCHIP
 691         default n
 692         help
 693           Say yes here to provide support for Semtech SX150-series I2C
 694           GPIO expanders. Compatible models include:
 695
 696           8 bits:  sx1508q
 697           16 bits: sx1509q
 698
 699 endmenu
 700
 701 menu "MFD GPIO expanders"
 702
 703 config GPIO_ADP5520
 704         tristate "GPIO Support for ADP5520 PMIC"
 705         depends on PMIC_ADP5520
 706         help
 707           This option enables support for on-chip GPIO found
 708           on Analog Devices ADP5520 PMICs.
 709
 710 config GPIO_ARIZONA
 711         tristate "Wolfson Microelectronics Arizona class devices"
 712         depends on MFD_ARIZONA
 713         help
 714           Support for GPIOs on Wolfson Arizona class devices.
 715
 716 config GPIO_CRYSTAL_COVE
 717         tristate "GPIO support for Crystal Cove PMIC"
 718         depends on INTEL_SOC_PMIC
 719         select GPIOLIB_IRQCHIP
 720         help
 721           Support for GPIO pins on Crystal Cove PMIC.
 722
 723           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 724           inside.
 725
 726           This driver can also be built as a module. If so, the module will be
 727           called gpio-crystalcove.
 728
 729 config GPIO_CS5535
 730         tristate "AMD CS5535/CS5536 GPIO support"
 731         depends on MFD_CS5535
 732         help
 733           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 734           can be used for quite a number of things.  The CS5535/6 is found on
 735           AMD Geode and Lemote Yeeloong devices.
 736
 737           If unsure, say N.
 738
 739 config GPIO_DA9052
 740         tristate "Dialog DA9052 GPIO"
 741         depends on PMIC_DA9052
 742         help
 743           Say yes here to enable the GPIO driver for the DA9052 chip.
 744
 745 config GPIO_DA9055
 746         tristate "Dialog Semiconductor DA9055 GPIO"
 747         depends on MFD_DA9055
 748         help
 749           Say yes here to enable the GPIO driver for the DA9055 chip.
 750
 751           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 752           be controller by this driver.
 753
 754           If driver is built as a module it will be called gpio-da9055.
 755
 756 config GPIO_DLN2
 757         tristate "Diolan DLN2 GPIO support"
 758         depends on MFD_DLN2
 759         select GPIOLIB_IRQCHIP
 760
 761         help
 762           Select this option to enable GPIO driver for the Diolan DLN2
 763           board.
 764
 765           This driver can also be built as a module. If so, the module
 766           will be called gpio-dln2.
 767
 768 config GPIO_JANZ_TTL
 769         tristate "Janz VMOD-TTL Digital IO Module"
 770         depends on MFD_JANZ_CMODIO
 771         help
 772           This enables support for the Janz VMOD-TTL Digital IO module.
 773           This driver provides support for driving the pins in output
 774           mode only. Input mode is not supported.
 775
 776 config GPIO_KEMPLD
 777         tristate "Kontron ETX / COMexpress GPIO"
 778         depends on MFD_KEMPLD
 779         help
 780           This enables support for the PLD GPIO interface on some Kontron ETX
 781           and COMexpress (ETXexpress) modules.
 782
 783           This driver can also be built as a module. If so, the module will be
 784           called gpio-kempld.
 785
 786 config GPIO_LP3943
 787         tristate "TI/National Semiconductor LP3943 GPIO expander"
 788         depends on MFD_LP3943
 789         help
 790           GPIO driver for LP3943 MFD.
 791           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 792           Open drain outputs are required for this usage.
 793
 794 config GPIO_MSIC
 795         bool "Intel MSIC mixed signal gpio support"
 796         depends on MFD_INTEL_MSIC
 797         help
 798           Enable support for GPIO on intel MSIC controllers found in
 799           intel MID devices
 800
 801 config GPIO_PALMAS
 802         bool "TI PALMAS series PMICs GPIO"
 803         depends on MFD_PALMAS
 804         help
 805           Select this option to enable GPIO driver for the TI PALMAS
 806           series chip family.
 807
 808 config GPIO_RC5T583
 809         bool "RICOH RC5T583 GPIO"
 810         depends on MFD_RC5T583
 811         help
 812           Select this option to enable GPIO driver for the Ricoh RC5T583
 813           chip family.
 814           This driver provides the support for driving/reading the gpio pins
 815           of RC5T583 device through standard gpio library.
 816
 817 config GPIO_STMPE
 818         bool "STMPE GPIOs"
 819         depends on MFD_STMPE
 820         depends on OF_GPIO
 821         select GPIOLIB_IRQCHIP
 822         help
 823           This enables support for the GPIOs found on the STMPE I/O
 824           Expanders.
 825
 826 config GPIO_TC3589X
 827         bool "TC3589X GPIOs"
 828         depends on MFD_TC3589X
 829         depends on OF_GPIO
 830         select GPIOLIB_IRQCHIP
 831         help
 832           This enables support for the GPIOs found on the TC3589X
 833           I/O Expander.
 834
 835 config GPIO_TIMBERDALE
 836         bool "Support for timberdale GPIO IP"
 837         depends on MFD_TIMBERDALE
 838         ---help---
 839         Add support for the GPIO IP in the timberdale FPGA.
 840
 841 config GPIO_TPS6586X
 842         bool "TPS6586X GPIO"
 843         depends on MFD_TPS6586X
 844         help
 845           Select this option to enable GPIO driver for the TPS6586X
 846           chip family.
 847
 848 config GPIO_TPS65910
 849         bool "TPS65910 GPIO"
 850         depends on MFD_TPS65910
 851         help
 852           Select this option to enable GPIO driver for the TPS65910
 853           chip family.
 854
 855 config GPIO_TPS65912
 856         tristate "TI TPS65912 GPIO"
 857         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 858         help
 859           This driver supports TPS65912 gpio chip
 860
 861 config GPIO_TWL4030
 862         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 863         depends on TWL4030_CORE
 864         help
 865           Say yes here to access the GPIO signals of various multi-function
 866           power management chips from Texas Instruments.
 867
 868 config GPIO_TWL6040
 869         tristate "TWL6040 GPO"
 870         depends on TWL6040_CORE
 871         help
 872           Say yes here to access the GPO signals of twl6040
 873           audio chip from Texas Instruments.
 874
 875 config GPIO_UCB1400
 876         tristate "Philips UCB1400 GPIO"
 877         depends on UCB1400_CORE
 878         help
 879           This enables support for the Philips UCB1400 GPIO pins.
 880           The UCB1400 is an AC97 audio codec.
 881
 882 config GPIO_WM831X
 883         tristate "WM831x GPIOs"
 884         depends on MFD_WM831X
 885         help
 886           Say yes here to access the GPIO signals of WM831x power management
 887           chips from Wolfson Microelectronics.
 888
 889 config GPIO_WM8350
 890         tristate "WM8350 GPIOs"
 891         depends on MFD_WM8350
 892         help
 893           Say yes here to access the GPIO signals of WM8350 power management
 894           chips from Wolfson Microelectronics.
 895
 896 config GPIO_WM8994
 897         tristate "WM8994 GPIOs"
 898         depends on MFD_WM8994
 899         help
 900           Say yes here to access the GPIO signals of WM8994 audio hub
 901           CODECs from Wolfson Microelectronics.
 902
 903 endmenu
 904
 905 menu "PCI GPIO expanders"
 906         depends on PCI
 907
 908 config GPIO_AMD8111
 909         tristate "AMD 8111 GPIO driver"
 910         depends on PCI
 911         help
 912           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 913
 914           Note, that usually system firmware/ACPI handles GPIO pins on their
 915           own and users might easily break their systems with uncarefull usage
 916           of this driver!
 917
 918           If unsure, say N
 919
 920 config GPIO_BT8XX
 921         tristate "BT8XX GPIO abuser"
 922         depends on PCI && VIDEO_BT848=n
 923         help
 924           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 925           as a cheap PCI GPIO card.
 926
 927           This chip can be found on Miro, Hauppauge and STB TV-cards.
 928
 929           The card needs to be physically altered for using it as a
 930           GPIO card. For more information on how to build a GPIO card
 931           from a BT8xx TV card, see the documentation file at
 932           Documentation/bt8xxgpio.txt
 933
 934           If unsure, say N.
 935
 936 config GPIO_INTEL_MID
 937         bool "Intel Mid GPIO support"
 938         depends on PCI && X86
 939         select GPIOLIB_IRQCHIP
 940         help
 941           Say Y here to support Intel Mid GPIO.
 942
 943 config GPIO_ML_IOH
 944         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 945         depends on PCI
 946         select GENERIC_IRQ_CHIP
 947         help
 948           ML7213 is companion chip for Intel Atom E6xx series.
 949           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 950           Hub) which is for IVI(In-Vehicle Infotainment) use.
 951           This driver can access the IOH's GPIO device.
 952
 953 config GPIO_PCH
 954         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 955         depends on PCI && (X86_32 || COMPILE_TEST)
 956         select GENERIC_IRQ_CHIP
 957         help
 958           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 959           which is an IOH(Input/Output Hub) for x86 embedded processor.
 960           This driver can access PCH GPIO device.
 961
 962           This driver also can be used for LAPIS Semiconductor IOH(Input/
 963           Output Hub), ML7223 and ML7831.
 964           ML7223 IOH is for MP(Media Phone) use.
 965           ML7831 IOH is for general purpose use.
 966           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 967           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 968
 969 config GPIO_RDC321X
 970         tristate "RDC R-321x GPIO support"
 971         depends on PCI
 972         select MFD_CORE
 973         select MFD_RDC321X
 974         help
 975           Support for the RDC R321x SoC GPIOs over southbridge
 976           PCI configuration space.
 977
 978 config GPIO_SODAVILLE
 979         bool "Intel Sodaville GPIO support"
 980         depends on X86 && PCI && OF
 981         select GPIO_GENERIC
 982         select GENERIC_IRQ_CHIP
 983         help
 984           Say Y here to support Intel Sodaville GPIO.
 985
 986 endmenu
 987
 988 menu "SPI GPIO expanders"
 989         depends on SPI_MASTER
 990
 991 config GPIO_74X164
 992         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 993         depends on OF
 994         help
 995           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 996           shift registers. This driver can be used to provide access
 997           to more gpio outputs.
 998
 999 config GPIO_MAX7301
1000         tristate "Maxim MAX7301 GPIO expander"
1001         select GPIO_MAX730X
1002         help
1003           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1004
1005 config GPIO_MC33880
1006         tristate "Freescale MC33880 high-side/low-side switch"
1007         help
1008           SPI driver for Freescale MC33880 high-side/low-side switch.
1009           This provides GPIO interface supporting inputs and outputs.
1010
1011 endmenu
1012
1013 menu "SPI or I2C GPIO expanders"
1014         depends on (SPI_MASTER && !I2C) || I2C
1015
1016 config GPIO_MCP23S08
1017         tristate "Microchip MCP23xxx I/O expander"
1018         help
1019           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1020           I/O expanders.
1021           This provides a GPIO interface supporting inputs and outputs.
1022           The I2C versions of the chips can be used as interrupt-controller.
1023
1024 endmenu
1025
1026 menu "USB GPIO expanders"
1027         depends on USB
1028
1029 config GPIO_VIPERBOARD
1030         tristate "Viperboard GPIO a & b support"
1031         depends on MFD_VIPERBOARD && USB
1032         help
1033           Say yes here to access the GPIO signals of Nano River
1034           Technologies Viperboard. There are two GPIO chips on the
1035           board: gpioa and gpiob.
1036           See viperboard API specification and Nano
1037           River Tech's viperboard.h for detailed meaning
1038           of the module parameters.
1039
1040 endmenu
1041
1042 endif