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_BCM_KONA
 123         bool "Broadcom Kona GPIO"
 124         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 125         help
 126           Turn on GPIO support for Broadcom "Kona" chips.
 127
 128 config GPIO_BRCMSTB
 129         tristate "BRCMSTB GPIO support"
 130         default y if ARCH_BRCMSTB
 131         depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST)
 132         select GPIO_GENERIC
 133         select GPIOLIB_IRQCHIP
 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_ETRAXFS
 171         bool "Axis ETRAX FS General I/O"
 172         depends on CRIS || COMPILE_TEST
 173         depends on OF
 174         select GPIO_GENERIC
 175         select GPIOLIB_IRQCHIP
 176         help
 177           Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 178
 179 config GPIO_F7188X
 180         tristate "F71869, F71869A, F71882FG and F71889F GPIO support"
 181         depends on X86
 182         help
 183           This option enables support for GPIOs found on Fintek Super-I/O
 184           chips F71869, F71869A, F71882FG and F71889F.
 185
 186           To compile this driver as a module, choose M here: the module will
 187           be called f7188x-gpio.
 188
 189 config GPIO_GE_FPGA
 190         bool "GE FPGA based GPIO"
 191         depends on GE_FPGA
 192         select GPIO_GENERIC
 193         help
 194           Support for common GPIO functionality provided on some GE Single Board
 195           Computers.
 196
 197           This driver provides basic support (configure as input or output, read
 198           and write pin state) for GPIO implemented in a number of GE single
 199           board computers.
 200
 201 config GPIO_GENERIC_PLATFORM
 202         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 203         select GPIO_GENERIC
 204         help
 205           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 206
 207 config GPIO_GRGPIO
 208         tristate "Aeroflex Gaisler GRGPIO support"
 209         depends on OF
 210         select GPIO_GENERIC
 211         select IRQ_DOMAIN
 212         help
 213           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 214           VHDL IP core library.
 215
 216 config GPIO_ICH
 217         tristate "Intel ICH GPIO"
 218         depends on PCI && X86
 219         select MFD_CORE
 220         select LPC_ICH
 221         help
 222           Say yes here to support the GPIO functionality of a number of Intel
 223           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 224           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 225           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 226
 227           If unsure, say N.
 228
 229 config GPIO_IOP
 230         tristate "Intel IOP GPIO"
 231         depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 232         help
 233           Say yes here to support the GPIO functionality of a number of Intel
 234           IOP32X or IOP33X.
 235
 236           If unsure, say N.
 237
 238 config GPIO_IT87
 239         tristate "IT87xx GPIO support"
 240         depends on X86 # unconditional access to IO space.
 241         help
 242           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 243
 244           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 245           supports the IT8761E Super I/O chip as well.
 246
 247           To compile this driver as a module, choose M here: the module will
 248           be called gpio_it87
 249
 250 config GPIO_LOONGSON
 251         bool "Loongson-2/3 GPIO support"
 252         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 253         help
 254           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 255
 256 config GPIO_LPC18XX
 257         bool "NXP LPC18XX/43XX GPIO support"
 258         default y if ARCH_LPC18XX
 259         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 260         help
 261           Select this option to enable GPIO driver for
 262           NXP LPC18XX/43XX devices.
 263
 264 config GPIO_LYNXPOINT
 265         tristate "Intel Lynxpoint GPIO support"
 266         depends on ACPI && X86
 267         select GPIOLIB_IRQCHIP
 268         help
 269           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 270           Requires ACPI device enumeration code to set up a platform device.
 271
 272 config GPIO_MB86S7X
 273         bool "GPIO support for Fujitsu MB86S7x Platforms"
 274         depends on ARCH_MB86S7X
 275         help
 276           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 277
 278 config GPIO_MM_LANTIQ
 279         bool "Lantiq Memory mapped GPIOs"
 280         depends on LANTIQ && SOC_XWAY
 281         help
 282           This enables support for memory mapped GPIOs on the External Bus Unit
 283           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 284           created by attaching a 16bit latch to the bus.
 285
 286 config GPIO_MOXART
 287         bool "MOXART GPIO support"
 288         depends on ARCH_MOXART
 289         select GPIO_GENERIC
 290         help
 291           Select this option to enable GPIO driver for
 292           MOXA ART SoC devices.
 293
 294 config GPIO_MPC5200
 295         def_bool y
 296         depends on PPC_MPC52xx
 297
 298 config GPIO_MPC8XXX
 299         bool "MPC512x/MPC8xxx GPIO support"
 300         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 301                    FSL_SOC_BOOKE || PPC_86xx
 302         help
 303           Say Y here if you're going to use hardware that connects to the
 304           MPC512x/831x/834x/837x/8572/8610 GPIOs.
 305
 306 config GPIO_MVEBU
 307         def_bool y
 308         depends on PLAT_ORION
 309         depends on OF
 310         select GENERIC_IRQ_CHIP
 311
 312 config GPIO_MXC
 313         def_bool y
 314         depends on ARCH_MXC
 315         select GPIO_GENERIC
 316         select GENERIC_IRQ_CHIP
 317
 318 config GPIO_MXS
 319         def_bool y
 320         depends on ARCH_MXS
 321         select GPIO_GENERIC
 322         select GENERIC_IRQ_CHIP
 323
 324 config GPIO_OCTEON
 325         tristate "Cavium OCTEON GPIO"
 326         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 327         default y
 328         help
 329           Say yes here to support the on-chip GPIO lines on the OCTEON
 330           family of SOCs.
 331
 332 config GPIO_OMAP
 333         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 334         default y if ARCH_OMAP
 335         depends on ARM
 336         select GENERIC_IRQ_CHIP
 337         select GPIOLIB_IRQCHIP
 338         help
 339           Say yes here to enable GPIO support for TI OMAP SoCs.
 340
 341 config GPIO_PL061
 342         bool "PrimeCell PL061 GPIO support"
 343         depends on ARM_AMBA
 344         select IRQ_DOMAIN
 345         select GPIOLIB_IRQCHIP
 346         help
 347           Say yes here to support the PrimeCell PL061 GPIO device
 348
 349 config GPIO_PXA
 350         bool "PXA GPIO support"
 351         depends on ARCH_PXA || ARCH_MMP
 352         help
 353           Say yes here to support the PXA GPIO device
 354
 355 config GPIO_RCAR
 356         tristate "Renesas R-Car GPIO"
 357         depends on ARCH_SHMOBILE || COMPILE_TEST
 358         select GPIOLIB_IRQCHIP
 359         help
 360           Say yes here to support GPIO on Renesas R-Car SoCs.
 361
 362 config GPIO_SAMSUNG
 363         bool
 364         depends on PLAT_SAMSUNG
 365         help
 366           Legacy GPIO support. Use only for platforms without support for
 367           pinctrl.
 368
 369 config GPIO_SCH
 370         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 371         depends on PCI && X86
 372         select MFD_CORE
 373         select LPC_SCH
 374         help
 375           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 376           Intel Tunnel Creek processor, Intel Centerton processor or
 377           Intel Quark X1000 SoC.
 378
 379           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 380           powered by the core power rail and are turned off during sleep
 381           modes (S3 and higher). The remaining four GPIOs are powered by
 382           the Intel SCH suspend power supply. These GPIOs remain
 383           active during S3. The suspend powered GPIOs can be used to wake the
 384           system from the Suspend-to-RAM state.
 385
 386           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 387           core power rail and 9 from suspend power supply.
 388
 389           The Intel Centerton processor has a total of 30 GPIO pins.
 390           Twenty-one are powered by the core power rail and 9 from the
 391           suspend power supply.
 392
 393           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 394           power well and 6 from the suspend power well.
 395
 396 config GPIO_SCH311X
 397         tristate "SMSC SCH311x SuperI/O GPIO"
 398         help
 399           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 400           SCH3116 "Super I/O" chipsets.
 401
 402           To compile this driver as a module, choose M here: the module will
 403           be called gpio-sch311x.
 404
 405 config GPIO_SPEAR_SPICS
 406         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 407         depends on PLAT_SPEAR
 408         select GENERIC_IRQ_CHIP
 409         help
 410           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 411
 412 config GPIO_STA2X11
 413         bool "STA2x11/ConneXt GPIO support"
 414         depends on MFD_STA2X11
 415         select GENERIC_IRQ_CHIP
 416         help
 417           Say yes here to support the STA2x11/ConneXt GPIO device.
 418           The GPIO module has 128 GPIO pins with alternate functions.
 419
 420 config GPIO_STP_XWAY
 421         bool "XWAY STP GPIOs"
 422         depends on SOC_XWAY
 423         help
 424           This enables support for the Serial To Parallel (STP) unit found on
 425           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 426           that can be up to 24 bit. This peripheral is aimed at driving leds.
 427           Some of the gpios/leds can be auto updated by the soc with dsl and
 428           phy status.
 429
 430 config GPIO_SYSCON
 431         tristate "GPIO based on SYSCON"
 432         depends on MFD_SYSCON && OF
 433         help
 434           Say yes here to support GPIO functionality though SYSCON driver.
 435
 436 config GPIO_TB10X
 437         bool
 438         select GENERIC_IRQ_CHIP
 439         select OF_GPIO
 440
 441 config GPIO_TS5500
 442         tristate "TS-5500 DIO blocks and compatibles"
 443         depends on TS5500 || COMPILE_TEST
 444         help
 445           This driver supports Digital I/O exposed by pin blocks found on some
 446           Technologic Systems platforms. It includes, but is not limited to, 3
 447           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 448           LCD port.
 449
 450 config GPIO_TZ1090
 451         bool "Toumaz Xenif TZ1090 GPIO support"
 452         depends on SOC_TZ1090
 453         select GENERIC_IRQ_CHIP
 454         default y
 455         help
 456           Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 457
 458 config GPIO_TZ1090_PDC
 459         bool "Toumaz Xenif TZ1090 PDC GPIO support"
 460         depends on SOC_TZ1090
 461         default y
 462         help
 463           Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 464
 465 config GPIO_VF610
 466         def_bool y
 467         depends on ARCH_MXC && SOC_VF610
 468         select GPIOLIB_IRQCHIP
 469         help
 470           Say yes here to support Vybrid vf610 GPIOs.
 471
 472 config GPIO_VR41XX
 473         tristate "NEC VR4100 series General-purpose I/O Uint support"
 474         depends on CPU_VR41XX
 475         help
 476           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 477
 478 config GPIO_VX855
 479         tristate "VIA VX855/VX875 GPIO"
 480         depends on PCI
 481         select MFD_CORE
 482         select MFD_VX855
 483         help
 484           Support access to the VX855/VX875 GPIO lines through the gpio library.
 485
 486           This driver provides common support for accessing the device,
 487           additional drivers must be enabled in order to use the
 488           functionality of the device.
 489
 490 config GPIO_XGENE
 491         bool "APM X-Gene GPIO controller support"
 492         depends on ARM64 && OF_GPIO
 493         help
 494           This driver is to support the GPIO block within the APM X-Gene SoC
 495           platform's generic flash controller. The GPIO pins are muxed with
 496           the generic flash controller's address and data pins. Say yes
 497           here to enable the GFC GPIO functionality.
 498
 499 config GPIO_XGENE_SB
 500         tristate "APM X-Gene GPIO standby controller support"
 501         depends on ARCH_XGENE && OF_GPIO
 502         select GPIO_GENERIC
 503         help
 504           This driver supports the GPIO block within the APM X-Gene
 505           Standby Domain. Say yes here to enable the GPIO functionality.
 506
 507 config GPIO_XILINX
 508         tristate "Xilinx GPIO support"
 509         depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86 || MIPS)
 510         help
 511           Say yes here to support the Xilinx FPGA GPIO device
 512
 513 config GPIO_XLP
 514         tristate "Netlogic XLP GPIO support"
 515         depends on CPU_XLP && OF_GPIO
 516         select GPIOLIB_IRQCHIP
 517         help
 518           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 519           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 520           XLP9XX and XLP5XX.
 521
 522           If unsure, say N.
 523
 524 config GPIO_XTENSA
 525         bool "Xtensa GPIO32 support"
 526         depends on XTENSA
 527         depends on HAVE_XTENSA_GPIO32
 528         depends on !SMP
 529         help
 530           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 531           and EXPSTATE (output) ports
 532
 533 config GPIO_ZEVIO
 534         bool "LSI ZEVIO SoC memory mapped GPIOs"
 535         depends on ARM && OF_GPIO
 536         help
 537           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 538
 539 config GPIO_ZYNQ
 540         tristate "Xilinx Zynq GPIO support"
 541         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 542         select GPIOLIB_IRQCHIP
 543         help
 544           Say yes here to support Xilinx Zynq GPIO controller.
 545
 546 endmenu
 547
 548 menu "I2C GPIO expanders"
 549         depends on I2C
 550
 551 config GPIO_ADP5588
 552         tristate "ADP5588 I2C GPIO expander"
 553         depends on I2C
 554         help
 555           This option enables support for 18 GPIOs found
 556           on Analog Devices ADP5588 GPIO Expanders.
 557
 558 config GPIO_ADP5588_IRQ
 559         bool "Interrupt controller support for ADP5588"
 560         depends on GPIO_ADP5588=y
 561         help
 562           Say yes here to enable the adp5588 to be used as an interrupt
 563           controller. It requires the driver to be built in the kernel.
 564
 565 config GPIO_ADNP
 566         tristate "Avionic Design N-bit GPIO expander"
 567         depends on I2C && OF_GPIO
 568         select GPIOLIB_IRQCHIP
 569         help
 570           This option enables support for N GPIOs found on Avionic Design
 571           I2C GPIO expanders. The register space will be extended by powers
 572           of two, so the controller will need to accommodate for that. For
 573           example: if a controller provides 48 pins, 6 registers will be
 574           enough to represent all pins, but the driver will assume a
 575           register layout for 64 pins (8 registers).
 576
 577 config GPIO_MAX7300
 578         tristate "Maxim MAX7300 GPIO expander"
 579         depends on I2C
 580         select GPIO_MAX730X
 581         help
 582           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 583
 584 config GPIO_MAX732X
 585         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 586         depends on I2C
 587         help
 588           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 589           Port Expanders. Each IO port on these chips has a fixed role of
 590           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 591           Input and Output (designed by 'P'). The combinations are listed
 592           below:
 593
 594           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 595                         max7322 (4I4O), max7323 (4P4O)
 596
 597           16 bits:      max7324 (8I8O), max7325 (8P8O),
 598                         max7326 (4I12O), max7327 (4P12O)
 599
 600           Board setup code must specify the model to use, and the start
 601           number for these GPIOs.
 602
 603 config GPIO_MAX732X_IRQ
 604         bool "Interrupt controller support for MAX732x"
 605         depends on GPIO_MAX732X=y
 606         select GPIOLIB_IRQCHIP
 607         help
 608           Say yes here to enable the max732x to be used as an interrupt
 609           controller. It requires the driver to be built in the kernel.
 610
 611 config GPIO_MC9S08DZ60
 612         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 613         depends on I2C=y && MACH_MX35_3DS
 614         help
 615           Select this to enable the MC9S08DZ60 GPIO driver
 616
 617 config GPIO_PCA953X
 618         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 619         depends on I2C
 620         help
 621           Say yes here to provide access to several register-oriented
 622           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 623           models include:
 624
 625           4 bits:       pca9536, pca9537
 626
 627           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 628                         pca9556, pca9557, pca9574, tca6408, xra1202
 629
 630           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 631                         tca6416
 632
 633           24 bits:      tca6424
 634
 635           40 bits:      pca9505, pca9698
 636
 637 config GPIO_PCA953X_IRQ
 638         bool "Interrupt controller support for PCA953x"
 639         depends on GPIO_PCA953X=y
 640         select GPIOLIB_IRQCHIP
 641         help
 642           Say yes here to enable the pca953x to be used as an interrupt
 643           controller. It requires the driver to be built in the kernel.
 644
 645 config GPIO_PCF857X
 646         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 647         depends on I2C
 648         select GPIOLIB_IRQCHIP
 649         select IRQ_DOMAIN
 650         help
 651           Say yes here to provide access to most "quasi-bidirectional" I2C
 652           GPIO expanders used for additional digital outputs or inputs.
 653           Most of these parts are from NXP, though TI is a second source for
 654           some of them.  Compatible models include:
 655
 656           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 657                     pca9670, pca9672, pca9674, pca9674a,
 658                     max7328, max7329
 659
 660           16 bits:  pcf8575, pcf8575c, pca8575,
 661                     pca9671, pca9673, pca9675
 662
 663           Your board setup code will need to declare the expanders in
 664           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 665           can then be used from drivers and other kernel code, just like
 666           other GPIOs, but only accessible from task contexts.
 667
 668           This driver provides an in-kernel interface to those GPIOs using
 669           platform-neutral GPIO calls.
 670
 671 config GPIO_SX150X
 672         bool "Semtech SX150x I2C GPIO expander"
 673         depends on I2C=y
 674         select GPIOLIB_IRQCHIP
 675         default n
 676         help
 677           Say yes here to provide support for Semtech SX150-series I2C
 678           GPIO expanders. Compatible models include:
 679
 680           8 bits:  sx1508q
 681           16 bits: sx1509q
 682
 683 endmenu
 684
 685 menu "MFD GPIO expanders"
 686
 687 config GPIO_ADP5520
 688         tristate "GPIO Support for ADP5520 PMIC"
 689         depends on PMIC_ADP5520
 690         help
 691           This option enables support for on-chip GPIO found
 692           on Analog Devices ADP5520 PMICs.
 693
 694 config GPIO_ARIZONA
 695         tristate "Wolfson Microelectronics Arizona class devices"
 696         depends on MFD_ARIZONA
 697         help
 698           Support for GPIOs on Wolfson Arizona class devices.
 699
 700 config GPIO_CRYSTAL_COVE
 701         tristate "GPIO support for Crystal Cove PMIC"
 702         depends on INTEL_SOC_PMIC
 703         select GPIOLIB_IRQCHIP
 704         help
 705           Support for GPIO pins on Crystal Cove PMIC.
 706
 707           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 708           inside.
 709
 710           This driver can also be built as a module. If so, the module will be
 711           called gpio-crystalcove.
 712
 713 config GPIO_CS5535
 714         tristate "AMD CS5535/CS5536 GPIO support"
 715         depends on MFD_CS5535
 716         help
 717           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 718           can be used for quite a number of things.  The CS5535/6 is found on
 719           AMD Geode and Lemote Yeeloong devices.
 720
 721           If unsure, say N.
 722
 723 config GPIO_DA9052
 724         tristate "Dialog DA9052 GPIO"
 725         depends on PMIC_DA9052
 726         help
 727           Say yes here to enable the GPIO driver for the DA9052 chip.
 728
 729 config GPIO_DA9055
 730         tristate "Dialog Semiconductor DA9055 GPIO"
 731         depends on MFD_DA9055
 732         help
 733           Say yes here to enable the GPIO driver for the DA9055 chip.
 734
 735           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 736           be controller by this driver.
 737
 738           If driver is built as a module it will be called gpio-da9055.
 739
 740 config GPIO_DLN2
 741         tristate "Diolan DLN2 GPIO support"
 742         depends on MFD_DLN2
 743         select GPIOLIB_IRQCHIP
 744
 745         help
 746           Select this option to enable GPIO driver for the Diolan DLN2
 747           board.
 748
 749           This driver can also be built as a module. If so, the module
 750           will be called gpio-dln2.
 751
 752 config GPIO_JANZ_TTL
 753         tristate "Janz VMOD-TTL Digital IO Module"
 754         depends on MFD_JANZ_CMODIO
 755         help
 756           This enables support for the Janz VMOD-TTL Digital IO module.
 757           This driver provides support for driving the pins in output
 758           mode only. Input mode is not supported.
 759
 760 config GPIO_KEMPLD
 761         tristate "Kontron ETX / COMexpress GPIO"
 762         depends on MFD_KEMPLD
 763         help
 764           This enables support for the PLD GPIO interface on some Kontron ETX
 765           and COMexpress (ETXexpress) modules.
 766
 767           This driver can also be built as a module. If so, the module will be
 768           called gpio-kempld.
 769
 770 config GPIO_LP3943
 771         tristate "TI/National Semiconductor LP3943 GPIO expander"
 772         depends on MFD_LP3943
 773         help
 774           GPIO driver for LP3943 MFD.
 775           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 776           Open drain outputs are required for this usage.
 777
 778 config GPIO_MSIC
 779         bool "Intel MSIC mixed signal gpio support"
 780         depends on MFD_INTEL_MSIC
 781         help
 782           Enable support for GPIO on intel MSIC controllers found in
 783           intel MID devices
 784
 785 config GPIO_PALMAS
 786         bool "TI PALMAS series PMICs GPIO"
 787         depends on MFD_PALMAS
 788         help
 789           Select this option to enable GPIO driver for the TI PALMAS
 790           series chip family.
 791
 792 config GPIO_RC5T583
 793         bool "RICOH RC5T583 GPIO"
 794         depends on MFD_RC5T583
 795         help
 796           Select this option to enable GPIO driver for the Ricoh RC5T583
 797           chip family.
 798           This driver provides the support for driving/reading the gpio pins
 799           of RC5T583 device through standard gpio library.
 800
 801 config GPIO_STMPE
 802         bool "STMPE GPIOs"
 803         depends on MFD_STMPE
 804         depends on OF_GPIO
 805         select GPIOLIB_IRQCHIP
 806         help
 807           This enables support for the GPIOs found on the STMPE I/O
 808           Expanders.
 809
 810 config GPIO_TC3589X
 811         bool "TC3589X GPIOs"
 812         depends on MFD_TC3589X
 813         depends on OF_GPIO
 814         select GPIOLIB_IRQCHIP
 815         help
 816           This enables support for the GPIOs found on the TC3589X
 817           I/O Expander.
 818
 819 config GPIO_TIMBERDALE
 820         bool "Support for timberdale GPIO IP"
 821         depends on MFD_TIMBERDALE
 822         ---help---
 823         Add support for the GPIO IP in the timberdale FPGA.
 824
 825 config GPIO_TPS6586X
 826         bool "TPS6586X GPIO"
 827         depends on MFD_TPS6586X
 828         help
 829           Select this option to enable GPIO driver for the TPS6586X
 830           chip family.
 831
 832 config GPIO_TPS65910
 833         bool "TPS65910 GPIO"
 834         depends on MFD_TPS65910
 835         help
 836           Select this option to enable GPIO driver for the TPS65910
 837           chip family.
 838
 839 config GPIO_TPS65912
 840         tristate "TI TPS65912 GPIO"
 841         depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
 842         help
 843           This driver supports TPS65912 gpio chip
 844
 845 config GPIO_TWL4030
 846         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 847         depends on TWL4030_CORE
 848         help
 849           Say yes here to access the GPIO signals of various multi-function
 850           power management chips from Texas Instruments.
 851
 852 config GPIO_TWL6040
 853         tristate "TWL6040 GPO"
 854         depends on TWL6040_CORE
 855         help
 856           Say yes here to access the GPO signals of twl6040
 857           audio chip from Texas Instruments.
 858
 859 config GPIO_UCB1400
 860         tristate "Philips UCB1400 GPIO"
 861         depends on UCB1400_CORE
 862         help
 863           This enables support for the Philips UCB1400 GPIO pins.
 864           The UCB1400 is an AC97 audio codec.
 865
 866 config GPIO_WM831X
 867         tristate "WM831x GPIOs"
 868         depends on MFD_WM831X
 869         help
 870           Say yes here to access the GPIO signals of WM831x power management
 871           chips from Wolfson Microelectronics.
 872
 873 config GPIO_WM8350
 874         tristate "WM8350 GPIOs"
 875         depends on MFD_WM8350
 876         help
 877           Say yes here to access the GPIO signals of WM8350 power management
 878           chips from Wolfson Microelectronics.
 879
 880 config GPIO_WM8994
 881         tristate "WM8994 GPIOs"
 882         depends on MFD_WM8994
 883         help
 884           Say yes here to access the GPIO signals of WM8994 audio hub
 885           CODECs from Wolfson Microelectronics.
 886
 887 endmenu
 888
 889 menu "PCI GPIO expanders"
 890         depends on PCI
 891
 892 config GPIO_AMD8111
 893         tristate "AMD 8111 GPIO driver"
 894         depends on PCI
 895         help
 896           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 897
 898           Note, that usually system firmware/ACPI handles GPIO pins on their
 899           own and users might easily break their systems with uncarefull usage
 900           of this driver!
 901
 902           If unsure, say N
 903
 904 config GPIO_BT8XX
 905         tristate "BT8XX GPIO abuser"
 906         depends on PCI && VIDEO_BT848=n
 907         help
 908           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 909           as a cheap PCI GPIO card.
 910
 911           This chip can be found on Miro, Hauppauge and STB TV-cards.
 912
 913           The card needs to be physically altered for using it as a
 914           GPIO card. For more information on how to build a GPIO card
 915           from a BT8xx TV card, see the documentation file at
 916           Documentation/bt8xxgpio.txt
 917
 918           If unsure, say N.
 919
 920 config GPIO_INTEL_MID
 921         bool "Intel Mid GPIO support"
 922         depends on PCI && X86
 923         select GPIOLIB_IRQCHIP
 924         help
 925           Say Y here to support Intel Mid GPIO.
 926
 927 config GPIO_ML_IOH
 928         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 929         depends on PCI
 930         select GENERIC_IRQ_CHIP
 931         help
 932           ML7213 is companion chip for Intel Atom E6xx series.
 933           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
 934           Hub) which is for IVI(In-Vehicle Infotainment) use.
 935           This driver can access the IOH's GPIO device.
 936
 937 config GPIO_PCH
 938         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
 939         depends on PCI && (X86_32 || COMPILE_TEST)
 940         select GENERIC_IRQ_CHIP
 941         help
 942           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
 943           which is an IOH(Input/Output Hub) for x86 embedded processor.
 944           This driver can access PCH GPIO device.
 945
 946           This driver also can be used for LAPIS Semiconductor IOH(Input/
 947           Output Hub), ML7223 and ML7831.
 948           ML7223 IOH is for MP(Media Phone) use.
 949           ML7831 IOH is for general purpose use.
 950           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 951           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 952
 953 config GPIO_RDC321X
 954         tristate "RDC R-321x GPIO support"
 955         depends on PCI
 956         select MFD_CORE
 957         select MFD_RDC321X
 958         help
 959           Support for the RDC R321x SoC GPIOs over southbridge
 960           PCI configuration space.
 961
 962 config GPIO_SODAVILLE
 963         bool "Intel Sodaville GPIO support"
 964         depends on X86 && PCI && OF
 965         select GPIO_GENERIC
 966         select GENERIC_IRQ_CHIP
 967         help
 968           Say Y here to support Intel Sodaville GPIO.
 969
 970 endmenu
 971
 972 menu "SPI GPIO expanders"
 973         depends on SPI_MASTER
 974
 975 config GPIO_74X164
 976         tristate "74x164 serial-in/parallel-out 8-bits shift register"
 977         depends on SPI_MASTER && OF
 978         help
 979           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
 980           shift registers. This driver can be used to provide access
 981           to more gpio outputs.
 982
 983 config GPIO_MAX7301
 984         tristate "Maxim MAX7301 GPIO expander"
 985         depends on SPI_MASTER
 986         select GPIO_MAX730X
 987         help
 988           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
 989
 990 config GPIO_MCP23S08
 991         tristate "Microchip MCP23xxx I/O expander"
 992         depends on (SPI_MASTER && !I2C) || I2C
 993         help
 994           SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
 995           I/O expanders.
 996           This provides a GPIO interface supporting inputs and outputs.
 997           The I2C versions of the chips can be used as interrupt-controller.
 998
 999 config GPIO_MC33880
1000         tristate "Freescale MC33880 high-side/low-side switch"
1001         depends on SPI_MASTER
1002         help
1003           SPI driver for Freescale MC33880 high-side/low-side switch.
1004           This provides GPIO interface supporting inputs and outputs.
1005
1006 config GPIO_ZX
1007         bool "ZTE ZX GPIO support"
1008         select GPIOLIB_IRQCHIP
1009         help
1010           Say yes here to support the GPIO device on ZTE ZX SoCs.
1011
1012 endmenu
1013
1014 menu "USB GPIO expanders"
1015         depends on USB
1016
1017 config GPIO_VIPERBOARD
1018         tristate "Viperboard GPIO a & b support"
1019         depends on MFD_VIPERBOARD && USB
1020         help
1021           Say yes here to access the GPIO signals of Nano River
1022           Technologies Viperboard. There are two GPIO chips on the
1023           board: gpioa and gpiob.
1024           See viperboard API specification and Nano
1025           River Tech's viperboard.h for detailed meaning
1026           of the module parameters.
1027
1028 endmenu
1029
1030 endif