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 GPIO_GENERIC
 117         select GPIOLIB_IRQCHIP
 118         help
 119           Say Y or M here to build support for the Altera PIO device.
 120
 121           If driver is built as a module it will be called gpio-altera.
 122
 123 config GPIO_BCM_KONA
 124         bool "Broadcom Kona GPIO"
 125         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 126         help
 127           Turn on GPIO support for Broadcom "Kona" chips.
 128
 129 config GPIO_BRCMSTB
 130         tristate "BRCMSTB GPIO support"
 131         default y if ARCH_BRCMSTB
 132         depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST)
 133         select GPIO_GENERIC
 134         help
 135           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 136
 137 config GPIO_CLPS711X
 138         tristate "CLPS711X GPIO support"
 139         depends on ARCH_CLPS711X || COMPILE_TEST
 140         select GPIO_GENERIC
 141         help
 142           Say yes here to support GPIO on CLPS711X SoCs.
 143
 144 config GPIO_DAVINCI
 145         bool "TI Davinci/Keystone GPIO support"
 146         default y if ARCH_DAVINCI
 147         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 148         help
 149           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 150
 151 config GPIO_DWAPB
 152         tristate "Synopsys DesignWare APB GPIO driver"
 153         select GPIO_GENERIC
 154         select GENERIC_IRQ_CHIP
 155         help
 156           Say Y or M here to build support for the Synopsys DesignWare APB
 157           GPIO block.
 158
 159 config GPIO_EM
 160         tristate "Emma Mobile GPIO"
 161         depends on ARM && OF_GPIO
 162         help
 163           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 164
 165 config GPIO_EP93XX
 166         def_bool y
 167         depends on ARCH_EP93XX
 168         select GPIO_GENERIC
 169
 170 config GPIO_F7188X
 171         tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
 172         depends on X86
 173         help
 174           This option enables support for GPIOs found on Fintek Super-I/O
 175           chips F71869, F71869A, F71882FG and F71889F.
 176
 177           To compile this driver as a module, choose M here: the module will
 178           be called f7188x-gpio.
 179
 180 config GPIO_GE_FPGA
 181         bool "GE FPGA based GPIO"
 182         depends on GE_FPGA
 183         select GPIO_GENERIC
 184         help
 185           Support for common GPIO functionality provided on some GE Single Board
 186           Computers.
 187
 188           This driver provides basic support (configure as input or output, read
 189           and write pin state) for GPIO implemented in a number of GE single
 190           board computers.
 191
 192 config GPIO_GENERIC_PLATFORM
 193         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 194         select GPIO_GENERIC
 195         help
 196           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 197
 198 config GPIO_GRGPIO
 199         tristate "Aeroflex Gaisler GRGPIO support"
 200         depends on OF
 201         select GPIO_GENERIC
 202         select IRQ_DOMAIN
 203         help
 204           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 205           VHDL IP core library.
 206
 207 config GPIO_ICH
 208         tristate "Intel ICH GPIO"
 209         depends on PCI && X86
 210         select MFD_CORE
 211         select LPC_ICH
 212         help
 213           Say yes here to support the GPIO functionality of a number of Intel
 214           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 215           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 216           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 217
 218           If unsure, say N.
 219
 220 config GPIO_IOP
 221         tristate "Intel IOP GPIO"
 222         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 223         help
 224           Say yes here to support the GPIO functionality of a number of Intel
 225           IOP32X or IOP33X.
 226
 227           If unsure, say N.
 228
 229 config GPIO_IT8761E
 230         tristate "IT8761E GPIO support"
 231         depends on X86  # unconditional access to IO space.
 232         help
 233           Say yes here to support GPIO functionality of IT8761E super I/O chip.
 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_MSM_V2
 292         tristate "Qualcomm MSM GPIO v2"
 293         depends on GPIOLIB && OF && ARCH_QCOM
 294         help
 295           Say yes here to support the GPIO interface on ARM v7 based
 296           Qualcomm MSM chips.  Most of the pins on the MSM can be
 297           selected for GPIO, and are controlled by this driver.
 298
 299 config GPIO_MVEBU
 300         def_bool y
 301         depends on PLAT_ORION
 302         depends on OF
 303         select GPIO_GENERIC
 304         select GENERIC_IRQ_CHIP
 305
 306 config GPIO_MXC
 307         def_bool y
 308         depends on ARCH_MXC
 309         select GPIO_GENERIC
 310         select GENERIC_IRQ_CHIP
 311
 312 config GPIO_MXS
 313         def_bool y
 314         depends on ARCH_MXS
 315         select GPIO_GENERIC
 316         select GENERIC_IRQ_CHIP
 317
 318 config GPIO_OCTEON
 319         tristate "Cavium OCTEON GPIO"
 320         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 321         default y
 322         help
 323           Say yes here to support the on-chip GPIO lines on the OCTEON
 324           family of SOCs.
 325
 326 config GPIO_OMAP
 327         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 328         default y if ARCH_OMAP
 329         depends on ARM
 330         select GENERIC_IRQ_CHIP
 331         select GPIOLIB_IRQCHIP
 332         help
 333           Say yes here to enable GPIO support for TI OMAP SoCs.
 334
 335 config GPIO_PL061
 336         bool "PrimeCell PL061 GPIO support"
 337         depends on ARM_AMBA
 338         select IRQ_DOMAIN
 339         select GPIOLIB_IRQCHIP
 340         help
 341           Say yes here to support the PrimeCell PL061 GPIO device
 342
 343 config GPIO_PXA
 344         bool "PXA GPIO support"
 345         depends on ARCH_PXA || ARCH_MMP
 346         help
 347           Say yes here to support the PXA GPIO device
 348
 349 config GPIO_RCAR
 350         tristate "Renesas R-Car GPIO"
 351         depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST)
 352         select GPIOLIB_IRQCHIP
 353         help
 354           Say yes here to support GPIO on Renesas R-Car SoCs.
 355
 356 config GPIO_SAMSUNG
 357         bool
 358         depends on PLAT_SAMSUNG
 359         help
 360           Legacy GPIO support. Use only for platforms without support for
 361           pinctrl.
 362
 363 config GPIO_SCH
 364         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 365         depends on PCI && X86
 366         select MFD_CORE
 367         select LPC_SCH
 368         help
 369           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 370           Intel Tunnel Creek processor, Intel Centerton processor or
 371           Intel Quark X1000 SoC.
 372
 373           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 374           powered by the core power rail and are turned off during sleep
 375           modes (S3 and higher). The remaining four GPIOs are powered by
 376           the Intel SCH suspend power supply. These GPIOs remain
 377           active during S3. The suspend powered GPIOs can be used to wake the
 378           system from the Suspend-to-RAM state.
 379
 380           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 381           core power rail and 9 from suspend power supply.
 382
 383           The Intel Centerton processor has a total of 30 GPIO pins.
 384           Twenty-one are powered by the core power rail and 9 from the
 385           suspend power supply.
 386
 387           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 388           power well and 6 from the suspend power well.
 389
 390 config GPIO_SCH311X
 391         tristate "SMSC SCH311x SuperI/O GPIO"
 392         help
 393           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 394           SCH3116 "Super I/O" chipsets.
 395
 396           To compile this driver as a module, choose M here: the module will
 397           be called gpio-sch311x.
 398
 399 config GPIO_SPEAR_SPICS
 400         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 401         depends on PLAT_SPEAR
 402         select GENERIC_IRQ_CHIP
 403         help
 404           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 405
 406 config GPIO_STA2X11
 407         bool "STA2x11/ConneXt GPIO support"
 408         depends on MFD_STA2X11
 409         select GENERIC_IRQ_CHIP
 410         help
 411           Say yes here to support the STA2x11/ConneXt GPIO device.
 412           The GPIO module has 128 GPIO pins with alternate functions.
 413
 414 config GPIO_STP_XWAY
 415         bool "XWAY STP GPIOs"
 416         depends on SOC_XWAY
 417         help
 418           This enables support for the Serial To Parallel (STP) unit found on
 419           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 420           that can be up to 24 bit. This peripheral is aimed at driving leds.
 421           Some of the gpios/leds can be auto updated by the soc with dsl and
 422           phy status.
 423
 424 config GPIO_SYSCON
 425         tristate "GPIO based on SYSCON"
 426         depends on MFD_SYSCON && OF
 427         help
 428           Say yes here to support GPIO functionality though SYSCON driver.
 429
 430 config GPIO_TB10X
 431         bool
 432         select GENERIC_IRQ_CHIP
 433         select OF_GPIO
 434
 435 config GPIO_TS5500
 436         tristate "TS-5500 DIO blocks and compatibles"
 437         depends on TS5500 || COMPILE_TEST
 438         help
 439           This driver supports Digital I/O exposed by pin blocks found on some
 440           Technologic Systems platforms. It includes, but is not limited to, 3
 441           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 442           LCD port.
 443
 444 config GPIO_TZ1090
 445         bool "Toumaz Xenif TZ1090 GPIO support"
 446         depends on SOC_TZ1090
 447         select GENERIC_IRQ_CHIP
 448         default y
 449         help
 450           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 451
 452 config GPIO_TZ1090_PDC
 453         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 454         depends on SOC_TZ1090
 455         default y
 456         help
 457           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 458
 459 config GPIO_VF610
 460         def_bool y
 461         depends on ARCH_MXC && SOC_VF610
 462         select GPIOLIB_IRQCHIP
 463         help
 464           Say yes here to support Vybrid vf610 GPIOs.
 465
 466 config GPIO_VR41XX
 467         tristate "NEC VR4100 series General-purpose I/O Uint support"
 468         depends on CPU_VR41XX
 469         help
 470           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 471
 472 config GPIO_VX855
 473         tristate "VIA VX855/VX875 GPIO"
 474         depends on PCI
 475         select MFD_CORE
 476         select MFD_VX855
 477         help
 478           Support access to the VX855/VX875 GPIO lines through the gpio library.
 479
 480           This driver provides common support for accessing the device,
 481           additional drivers must be enabled in order to use the
 482           functionality of the device.
 483
 484 config GPIO_XGENE
 485         bool "APM X-Gene GPIO controller support"
 486         depends on ARM64 && OF_GPIO
 487         help
 488           This driver is to support the GPIO block within the APM X-Gene SoC
 489           platform's generic flash controller. The GPIO pins are muxed with
 490           the generic flash controller's address and data pins. Say yes
 491           here to enable the GFC GPIO functionality.
 492
 493 config GPIO_XGENE_SB
 494         tristate "APM X-Gene GPIO standby controller support"
 495         depends on ARCH_XGENE && OF_GPIO
 496         select GPIO_GENERIC
 497         help
 498           This driver supports the GPIO block within the APM X-Gene
 499           Standby Domain. Say yes here to enable the GPIO functionality.
 500
 501 config GPIO_XILINX
 502         tristate "Xilinx GPIO support"
 503         depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86)
 504         help
 505           Say yes here to support the Xilinx FPGA GPIO device
 506
 507 config GPIO_XLP
 508         tristate "Netlogic XLP GPIO support"
 509         depends on CPU_XLP
 510         select GPIOLIB_IRQCHIP
 511         help
 512           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 513           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 514           XLP9XX and XLP5XX.
 515
 516           If unsure, say N.
 517
 518 config GPIO_XTENSA
 519         bool "Xtensa GPIO32 support"
 520         depends on XTENSA
 521         depends on HAVE_XTENSA_GPIO32
 522         depends on !SMP
 523         help
 524           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 525           and EXPSTATE (output) ports
 526
 527 config GPIO_ZEVIO
 528         bool "LSI ZEVIO SoC memory mapped GPIOs"
 529         depends on ARM && OF_GPIO
 530         help
 531           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 532
 533 config GPIO_ZYNQ
 534         tristate "Xilinx Zynq GPIO support"
 535         depends on ARCH_ZYNQ
 536         select GPIOLIB_IRQCHIP
 537         help
 538           Say yes here to support Xilinx Zynq GPIO controller.
 539
 540 endmenu
 541
 542 menu "I2C GPIO expanders"
 543         depends on I2C
 544
 545 config GPIO_ADP5588
 546         tristate "ADP5588 I2C GPIO expander"
 547         depends on I2C
 548         help
 549           This option enables support for 18 GPIOs found
 550           on Analog Devices ADP5588 GPIO Expanders.
 551
 552 config GPIO_ADP5588_IRQ
 553         bool "Interrupt controller support for ADP5588"
 554         depends on GPIO_ADP5588=y
 555         help
 556           Say yes here to enable the adp5588 to be used as an interrupt
 557           controller. It requires the driver to be built in the kernel.
 558
 559 config GPIO_ADNP
 560         tristate "Avionic Design N-bit GPIO expander"
 561         depends on I2C && OF_GPIO
 562         select GPIOLIB_IRQCHIP
 563         help
 564           This option enables support for N GPIOs found on Avionic Design
 565           I2C GPIO expanders. The register space will be extended by powers
 566           of two, so the controller will need to accommodate for that. For
 567           example: if a controller provides 48 pins, 6 registers will be
 568           enough to represent all pins, but the driver will assume a
 569           register layout for 64 pins (8 registers).
 570
 571 config GPIO_MAX7300
 572         tristate "Maxim MAX7300 GPIO expander"
 573         depends on I2C
 574         select GPIO_MAX730X
 575         help
 576           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 577
 578 config GPIO_MAX732X
 579         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 580         depends on I2C
 581         help
 582           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 583           Port Expanders. Each IO port on these chips has a fixed role of
 584           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 585           Input and Output (designed by 'P'). The combinations are listed
 586           below:
 587
 588           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 589                         max7322 (4I4O), max7323 (4P4O)
 590
 591           16 bits:      max7324 (8I8O), max7325 (8P8O),
 592                         max7326 (4I12O), max7327 (4P12O)
 593
 594           Board setup code must specify the model to use, and the start
 595           number for these GPIOs.
 596
 597 config GPIO_MAX732X_IRQ
 598         bool "Interrupt controller support for MAX732x"
 599         depends on GPIO_MAX732X=y
 600         select GPIOLIB_IRQCHIP
 601         help
 602           Say yes here to enable the max732x to be used as an interrupt
 603           controller. It requires the driver to be built in the kernel.
 604
 605 config GPIO_MC9S08DZ60
 606         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 607         depends on I2C=y && MACH_MX35_3DS
 608         help
 609           Select this to enable the MC9S08DZ60 GPIO driver
 610
 611 config GPIO_PCA953X
 612         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 613         depends on I2C
 614         help
 615           Say yes here to provide access to several register-oriented
 616           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 617           models include:
 618
 619           4 bits:       pca9536, pca9537
 620
 621           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 622                         pca9556, pca9557, pca9574, tca6408, xra1202
 623
 624           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 625                         tca6416
 626
 627           24 bits:      tca6424
 628
 629           40 bits:      pca9505, pca9698
 630
 631 config GPIO_PCA953X_IRQ
 632         bool "Interrupt controller support for PCA953x"
 633         depends on GPIO_PCA953X=y
 634         select GPIOLIB_IRQCHIP
 635         help
 636           Say yes here to enable the pca953x to be used as an interrupt
 637           controller. It requires the driver to be built in the kernel.
 638
 639 config GPIO_PCF857X
 640         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 641         depends on I2C
 642         select GPIOLIB_IRQCHIP
 643         select IRQ_DOMAIN
 644         help
 645           Say yes here to provide access to most "quasi-bidirectional" I2C
 646           GPIO expanders used for additional digital outputs or inputs.
 647           Most of these parts are from NXP, though TI is a second source for
 648           some of them.  Compatible models include:
 649
 650           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 651                     pca9670, pca9672, pca9674, pca9674a,
 652                     max7328, max7329
 653
 654           16 bits:  pcf8575, pcf8575c, pca8575,
 655                     pca9671, pca9673, pca9675
 656
 657           Your board setup code will need to declare the expanders in
 658           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 659           can then be used from drivers and other kernel code, just like
 660           other GPIOs, but only accessible from task contexts.
 661
 662           This driver provides an in-kernel interface to those GPIOs using
 663           platform-neutral GPIO calls.
 664
 665 config GPIO_SX150X
 666         bool "Semtech SX150x I2C GPIO expander"
 667         depends on I2C=y
 668         select GPIOLIB_IRQCHIP
 669         default n
 670         help
 671           Say yes here to provide support for Semtech SX150-series I2C
 672           GPIO expanders. Compatible models include:
 673
 674           8 bits:  sx1508q
 675           16 bits: sx1509q
 676
 677 endmenu
 678
 679 menu "MFD GPIO expanders"
 680
 681 config GPIO_ADP5520
 682         tristate "GPIO Support for ADP5520 PMIC"
 683         depends on PMIC_ADP5520
 684         help
 685           This option enables support for on-chip GPIO found
 686           on Analog Devices ADP5520 PMICs.
 687
 688 config GPIO_ARIZONA
 689         tristate "Wolfson Microelectronics Arizona class devices"
 690         depends on MFD_ARIZONA
 691         help
 692           Support for GPIOs on Wolfson Arizona class devices.
 693
 694 config GPIO_CRYSTAL_COVE
 695         tristate "GPIO support for Crystal Cove PMIC"
 696         depends on INTEL_SOC_PMIC
 697         select GPIOLIB_IRQCHIP
 698         help
 699           Support for GPIO pins on Crystal Cove PMIC.
 700
 701           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 702           inside.
 703
 704           This driver can also be built as a module. If so, the module will be
 705           called gpio-crystalcove.
 706
 707 config GPIO_CS5535
 708         tristate "AMD CS5535/CS5536 GPIO support"
 709         depends on MFD_CS5535
 710         help
 711           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 712           can be used for quite a number of things.  The CS5535/6 is found on
 713           AMD Geode and Lemote Yeeloong devices.
 714
 715           If unsure, say N.
 716
 717 config GPIO_DA9052
 718         tristate "Dialog DA9052 GPIO"
 719         depends on PMIC_DA9052
 720         help
 721           Say yes here to enable the GPIO driver for the DA9052 chip.
 722
 723 config GPIO_DA9055
 724         tristate "Dialog Semiconductor DA9055 GPIO"
 725         depends on MFD_DA9055
 726         help
 727           Say yes here to enable the GPIO driver for the DA9055 chip.
 728
 729           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 730           be controller by this driver.
 731
 732           If driver is built as a module it will be called gpio-da9055.
 733
 734 config GPIO_DLN2
 735         tristate "Diolan DLN2 GPIO support"
 736         depends on MFD_DLN2
 737         select GPIOLIB_IRQCHIP
 738
 739         help
 740           Select this option to enable GPIO driver for the Diolan DLN2
 741           board.
 742
 743           This driver can also be built as a module. If so, the module
 744           will be called gpio-dln2.
 745
 746 config GPIO_JANZ_TTL
 747         tristate "Janz VMOD-TTL Digital IO Module"
 748         depends on MFD_JANZ_CMODIO
 749         help
 750           This enables support for the Janz VMOD-TTL Digital IO module.
 751           This driver provides support for driving the pins in output
 752           mode only. Input mode is not supported.
 753
 754 config GPIO_KEMPLD
 755         tristate "Kontron ETX / COMexpress GPIO"
 756         depends on MFD_KEMPLD
 757         help
 758           This enables support for the PLD GPIO interface on some Kontron ETX
 759           and COMexpress (ETXexpress) modules.
 760
 761           This driver can also be built as a module. If so, the module will be
 762           called gpio-kempld.
 763
 764 config GPIO_LP3943
 765         tristate "TI/National Semiconductor LP3943 GPIO expander"
 766         depends on MFD_LP3943
 767         help
 768           GPIO driver for LP3943 MFD.
 769           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 770           Open drain outputs are required for this usage.
 771
 772 config GPIO_MSIC
 773         bool "Intel MSIC mixed signal gpio support"
 774         depends on MFD_INTEL_MSIC
 775         help
 776           Enable support for GPIO on intel MSIC controllers found in
 777           intel MID devices
 778
 779 config GPIO_PALMAS
 780         bool "TI PALMAS series PMICs GPIO"
 781         depends on MFD_PALMAS
 782         help
 783           Select this option to enable GPIO driver for the TI PALMAS
 784           series chip family.
 785
 786 config GPIO_RC5T583
 787         bool "RICOH RC5T583 GPIO"
 788         depends on MFD_RC5T583
 789         help
 790           Select this option to enable GPIO driver for the Ricoh RC5T583
 791           chip family.
 792           This driver provides the support for driving/reading the gpio pins
 793           of RC5T583 device through standard gpio library.
 794
 795 config GPIO_STMPE
 796         bool "STMPE GPIOs"
 797         depends on MFD_STMPE
 798         depends on OF_GPIO
 799         select GPIOLIB_IRQCHIP
 800         help
 801           This enables support for the GPIOs found on the STMPE I/O
 802           Expanders.
 803
 804 config GPIO_TC3589X
 805         bool "TC3589X GPIOs"
 806         depends on MFD_TC3589X
 807         depends on OF_GPIO
 808         select GPIOLIB_IRQCHIP
 809         help
 810           This enables support for the GPIOs found on the TC3589X
 811           I/O Expander.
 812
 813 config GPIO_TIMBERDALE
 814         bool "Support for timberdale GPIO IP"
 815         depends on MFD_TIMBERDALE
 816         ---help---
 817         Add support for the GPIO IP in the timberdale FPGA.
 818
 819 config GPIO_TPS6586X
 820         bool "TPS6586X GPIO"
 821         depends on MFD_TPS6586X
 822         help
 823           Select this option to enable GPIO driver for the TPS6586X
 824           chip family.
 825
 826 config GPIO_TPS65910
 827         bool "TPS65910 GPIO"
 828         depends on MFD_TPS65910
 829         help
 830           Select this option to enable GPIO driver for the TPS65910
 831           chip family.
 832
 833 config GPIO_TPS65912
 834         tristate "TI TPS65912 GPIO"
 835         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 836         help
 837           This driver supports TPS65912 gpio chip
 838
 839 config GPIO_TWL4030
 840         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 841         depends on TWL4030_CORE
 842         help
 843           Say yes here to access the GPIO signals of various multi-function
 844           power management chips from Texas Instruments.
 845
 846 config GPIO_TWL6040
 847         tristate "TWL6040 GPO"
 848         depends on TWL6040_CORE
 849         help
 850           Say yes here to access the GPO signals of twl6040
 851           audio chip from Texas Instruments.
 852
 853 config GPIO_UCB1400
 854         tristate "Philips UCB1400 GPIO"
 855         depends on UCB1400_CORE
 856         help
 857           This enables support for the Philips UCB1400 GPIO pins.
 858           The UCB1400 is an AC97 audio codec.
 859
 860 config GPIO_WM831X
 861         tristate "WM831x GPIOs"
 862         depends on MFD_WM831X
 863         help
 864           Say yes here to access the GPIO signals of WM831x power management
 865           chips from Wolfson Microelectronics.
 866
 867 config GPIO_WM8350
 868         tristate "WM8350 GPIOs"
 869         depends on MFD_WM8350
 870         help
 871           Say yes here to access the GPIO signals of WM8350 power management
 872           chips from Wolfson Microelectronics.
 873
 874 config GPIO_WM8994
 875         tristate "WM8994 GPIOs"
 876         depends on MFD_WM8994
 877         help
 878           Say yes here to access the GPIO signals of WM8994 audio hub
 879           CODECs from Wolfson Microelectronics.
 880
 881 endmenu
 882
 883 menu "PCI GPIO expanders"
 884         depends on PCI
 885
 886 config GPIO_AMD8111
 887         tristate "AMD 8111 GPIO driver"
 888         depends on PCI
 889         help
 890           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 891
 892           Note, that usually system firmware/ACPI handles GPIO pins on their
 893           own and users might easily break their systems with uncarefull usage
 894           of this driver!
 895
 896           If unsure, say N
 897
 898 config GPIO_BT8XX
 899         tristate "BT8XX GPIO abuser"
 900         depends on PCI && VIDEO_BT848=n
 901         help
 902           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 903           as a cheap PCI GPIO card.
 904
 905           This chip can be found on Miro, Hauppauge and STB TV-cards.
 906
 907           The card needs to be physically altered for using it as a
 908           GPIO card. For more information on how to build a GPIO card
 909           from a BT8xx TV card, see the documentation file at
 910           Documentation/bt8xxgpio.txt
 911
 912           If unsure, say N.
 913
 914 config GPIO_INTEL_MID
 915         bool "Intel Mid GPIO support"
 916         depends on PCI && X86
 917         select GPIOLIB_IRQCHIP
 918         help
 919           Say Y here to support Intel Mid GPIO.
 920
 921 config GPIO_ML_IOH
 922         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 923         depends on PCI
 924         select GENERIC_IRQ_CHIP
 925         help
 926           ML7213 is companion chip for Intel Atom E6xx series.
 927           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 928           Hub) which is for IVI(In-Vehicle Infotainment) use.
 929           This driver can access the IOH's GPIO device.
 930
 931 config GPIO_PCH
 932         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 933         depends on PCI && (X86_32 || COMPILE_TEST)
 934         select GENERIC_IRQ_CHIP
 935         help
 936           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 937           which is an IOH(Input/Output Hub) for x86 embedded processor.
 938           This driver can access PCH GPIO device.
 939
 940           This driver also can be used for LAPIS Semiconductor IOH(Input/
 941           Output Hub), ML7223 and ML7831.
 942           ML7223 IOH is for MP(Media Phone) use.
 943           ML7831 IOH is for general purpose use.
 944           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 945           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 946
 947 config GPIO_RDC321X
 948         tristate "RDC R-321x GPIO support"
 949         depends on PCI
 950         select MFD_CORE
 951         select MFD_RDC321X
 952         help
 953           Support for the RDC R321x SoC GPIOs over southbridge
 954           PCI configuration space.
 955
 956 config GPIO_SODAVILLE
 957         bool "Intel Sodaville GPIO support"
 958         depends on X86 && PCI && OF
 959         select GPIO_GENERIC
 960         select GENERIC_IRQ_CHIP
 961         help
 962           Say Y here to support Intel Sodaville GPIO.
 963
 964 endmenu
 965
 966 menu "SPI GPIO expanders"
 967         depends on SPI_MASTER
 968
 969 config GPIO_74X164
 970         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 971         depends on SPI_MASTER && OF
 972         help
 973           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 974           shift registers. This driver can be used to provide access
 975           to more gpio outputs.
 976
 977 config GPIO_MAX7301
 978         tristate "Maxim MAX7301 GPIO expander"
 979         depends on SPI_MASTER
 980         select GPIO_MAX730X
 981         help
 982           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 983
 984 config GPIO_MCP23S08
 985         tristate "Microchip MCP23xxx I/O expander"
 986         depends on (SPI_MASTER && !I2C) || I2C
 987         help
 988           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 989           I/O expanders.
 990           This provides a GPIO interface supporting inputs and outputs.
 991           The I2C versions of the chips can be used as interrupt-controller.
 992
 993 config GPIO_MC33880
 994         tristate "Freescale MC33880 high-side/low-side switch"
 995         depends on SPI_MASTER
 996         help
 997           SPI driver for Freescale MC33880 high-side/low-side switch.
 998           This provides GPIO interface supporting inputs and outputs.
 999
1000 endmenu
1001
1002 menu "USB GPIO expanders"
1003         depends on USB
1004
1005 config GPIO_VIPERBOARD
1006         tristate "Viperboard GPIO a & b support"
1007         depends on MFD_VIPERBOARD && USB
1008         help
1009           Say yes here to access the GPIO signals of Nano River
1010           Technologies Viperboard. There are two GPIO chips on the
1011           board: gpioa and gpiob.
1012           See viperboard API specification and Nano
1013           River Tech's viperboard.h for detailed meaning
1014           of the module parameters.
1015
1016 endmenu
1017
1018 endif