drivers/gpio/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # GPIO infrastructure and drivers
   4 #
   5
   6 config ARCH_HAVE_CUSTOM_GPIO_H
   7         bool
   8         help
   9           Selecting this config option from the architecture Kconfig allows
  10           the architecture to provide a custom asm/gpio.h implementation
  11           overriding the default implementations.  New uses of this are
  12           strongly discouraged.
  13
  14 menuconfig GPIOLIB
  15         bool "GPIO Support"
  16         help
  17           This enables GPIO support through the generic GPIO library.
  18           You only need to enable this, if you also want to enable
  19           one or more of the GPIO drivers below.
  20
  21           If unsure, say N.
  22
  23 if GPIOLIB
  24
  25 config GPIOLIB_FASTPATH_LIMIT
  26         int "Maximum number of GPIOs for fast path"
  27         range 32 512
  28         default 512
  29         help
  30           This adjusts the point at which certain APIs will switch from
  31           using a stack allocated buffer to a dynamically allocated buffer.
  32
  33           You shouldn't need to change this unless you really need to
  34           optimize either stack space or performance. Change this carefully
  35           since setting an incorrect value could cause stack corruption.
  36
  37 config OF_GPIO
  38         def_bool y
  39         depends on OF
  40         depends on HAS_IOMEM
  41
  42 config GPIO_ACPI
  43         def_bool y
  44         depends on ACPI
  45
  46 config GPIOLIB_IRQCHIP
  47         select IRQ_DOMAIN
  48         bool
  49
  50 config DEBUG_GPIO
  51         bool "Debug GPIO calls"
  52         depends on DEBUG_KERNEL
  53         help
  54           Say Y here to add some extra checks and diagnostics to GPIO calls.
  55           These checks help ensure that GPIOs have been properly initialized
  56           before they are used, and that sleeping calls are not made from
  57           non-sleeping contexts.  They can make bitbanged serial protocols
  58           slower.  The diagnostics help catch the type of setup errors
  59           that are most common when setting up new platforms or boards.
  60
  61 config GPIO_SYSFS
  62         bool "/sys/class/gpio/... (sysfs interface)"
  63         depends on SYSFS
  64         help
  65           Say Y here to add the legacy sysfs interface for GPIOs.
  66
  67           This ABI is deprecated. If you want to use GPIO from userspace,
  68           use the character device /dev/gpiochipN with the appropriate
  69           ioctl() operations instead. The character device is always
  70           available.
  71
  72 config GPIO_GENERIC
  73         depends on HAS_IOMEM # Only for IOMEM drivers
  74         tristate
  75
  76 # put drivers in the right section, in alphabetical order
  77
  78 # This symbol is selected by both I2C and SPI expanders
  79 config GPIO_MAX730X
  80         tristate
  81
  82 menu "Memory mapped GPIO drivers"
  83         depends on HAS_IOMEM
  84
  85 config GPIO_74XX_MMIO
  86         tristate "GPIO driver for 74xx-ICs with MMIO access"
  87         depends on OF_GPIO
  88         select GPIO_GENERIC
  89         help
  90           Say yes here to support GPIO functionality for 74xx-compatible ICs
  91           with MMIO access. Compatible models include:
  92             1 bit:      741G125 (Input), 741G74 (Output)
  93             2 bits:     742G125 (Input), 7474 (Output)
  94             4 bits:     74125 (Input), 74175 (Output)
  95             6 bits:     74365 (Input), 74174 (Output)
  96             8 bits:     74244 (Input), 74273 (Output)
  97             16 bits:    741624 (Input), 7416374 (Output)
  98
  99 config GPIO_ALTERA
 100         tristate "Altera GPIO"
 101         depends on OF_GPIO
 102         select GPIOLIB_IRQCHIP
 103         help
 104           Say Y or M here to build support for the Altera PIO device.
 105
 106           If driver is built as a module it will be called gpio-altera.
 107
 108 config GPIO_AMDPT
 109         tristate "AMD Promontory GPIO support"
 110         depends on ACPI
 111         select GPIO_GENERIC
 112         help
 113           driver for GPIO functionality on Promontory IOHub
 114           Require ACPI ASL code to enumerate as a platform device.
 115
 116 config GPIO_ASPEED
 117         tristate "Aspeed GPIO support"
 118         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 119         select GPIOLIB_IRQCHIP
 120         help
 121           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 122
 123 config GPIO_ATH79
 124         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 125         default y if ATH79
 126         depends on ATH79 || COMPILE_TEST
 127         select GPIO_GENERIC
 128         select GPIOLIB_IRQCHIP
 129         help
 130           Select this option to enable GPIO driver for
 131           Atheros AR71XX/AR724X/AR913X SoC devices.
 132
 133 config GPIO_RASPBERRYPI_EXP
 134         tristate "Raspberry Pi 3 GPIO Expander"
 135         default RASPBERRYPI_FIRMWARE
 136         depends on OF_GPIO
 137         # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 138         # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 139         depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 140         help
 141           Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 142           the firmware mailbox to communicate with VideoCore on BCM283x chips.
 143
 144 config GPIO_BCM_KONA
 145         bool "Broadcom Kona GPIO"
 146         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 147         help
 148           Turn on GPIO support for Broadcom "Kona" chips.
 149
 150 config GPIO_BRCMSTB
 151         tristate "BRCMSTB GPIO support"
 152         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 153         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 154         select GPIO_GENERIC
 155         select IRQ_DOMAIN
 156         help
 157           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 158
 159 config GPIO_CADENCE
 160         tristate "Cadence GPIO support"
 161         depends on OF_GPIO
 162         select GPIO_GENERIC
 163         select GPIOLIB_IRQCHIP
 164         help
 165           Say yes here to enable support for Cadence GPIO controller.
 166
 167 config GPIO_CLPS711X
 168         tristate "CLPS711X GPIO support"
 169         depends on ARCH_CLPS711X || COMPILE_TEST
 170         select GPIO_GENERIC
 171         help
 172           Say yes here to support GPIO on CLPS711X SoCs.
 173
 174 config GPIO_DAVINCI
 175         bool "TI Davinci/Keystone GPIO support"
 176         default y if ARCH_DAVINCI
 177         depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
 178         help
 179           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 180
 181 config GPIO_DWAPB
 182         tristate "Synopsys DesignWare APB GPIO driver"
 183         select GPIO_GENERIC
 184         select GENERIC_IRQ_CHIP
 185         help
 186           Say Y or M here to build support for the Synopsys DesignWare APB
 187           GPIO block.
 188
 189 config GPIO_EIC_SPRD
 190         tristate "Spreadtrum EIC support"
 191         depends on ARCH_SPRD || COMPILE_TEST
 192         depends on OF_GPIO
 193         select GPIOLIB_IRQCHIP
 194         help
 195           Say yes here to support Spreadtrum EIC device.
 196
 197 config GPIO_EM
 198         tristate "Emma Mobile GPIO"
 199         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 200         help
 201           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 202
 203 config GPIO_EP93XX
 204         def_bool y
 205         depends on ARCH_EP93XX
 206         select GPIO_GENERIC
 207         select GPIOLIB_IRQCHIP
 208
 209 config GPIO_EXAR
 210         tristate "Support for GPIO pins on XR17V352/354/358"
 211         depends on SERIAL_8250_EXAR
 212         help
 213           Selecting this option will enable handling of GPIO pins present
 214           on Exar XR17V352/354/358 chips.
 215
 216 config GPIO_GE_FPGA
 217         bool "GE FPGA based GPIO"
 218         depends on GE_FPGA
 219         select GPIO_GENERIC
 220         help
 221           Support for common GPIO functionality provided on some GE Single Board
 222           Computers.
 223
 224           This driver provides basic support (configure as input or output, read
 225           and write pin state) for GPIO implemented in a number of GE single
 226           board computers.
 227
 228 config GPIO_FTGPIO010
 229         bool "Faraday FTGPIO010 GPIO"
 230         depends on OF_GPIO
 231         select GPIO_GENERIC
 232         select GPIOLIB_IRQCHIP
 233         default (ARCH_GEMINI || ARCH_MOXART)
 234         help
 235           Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 236           Cortina systems Gemini platforms, Moxa ART and others.
 237
 238 config GPIO_GENERIC_PLATFORM
 239         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 240         select GPIO_GENERIC
 241         help
 242           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 243
 244 config GPIO_GRGPIO
 245         tristate "Aeroflex Gaisler GRGPIO support"
 246         depends on OF_GPIO
 247         select GPIO_GENERIC
 248         select IRQ_DOMAIN
 249         help
 250           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 251           VHDL IP core library.
 252
 253 config GPIO_HLWD
 254         tristate "Nintendo Wii (Hollywood) GPIO"
 255         depends on OF_GPIO
 256         select GPIO_GENERIC
 257         select GPIOLIB_IRQCHIP
 258         help
 259           Select this to support the GPIO controller of the Nintendo Wii.
 260
 261           If unsure, say N.
 262
 263 config GPIO_ICH
 264         tristate "Intel ICH GPIO"
 265         depends on PCI && X86
 266         select MFD_CORE
 267         select LPC_ICH
 268         help
 269           Say yes here to support the GPIO functionality of a number of Intel
 270           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 271           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 272           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 273
 274           If unsure, say N.
 275
 276 config GPIO_IOP
 277         tristate "Intel IOP GPIO"
 278         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
 279         select GPIO_GENERIC
 280         help
 281           Say yes here to support the GPIO functionality of a number of Intel
 282           IOP32X or IOP33X.
 283
 284           If unsure, say N.
 285
 286 config GPIO_IXP4XX
 287         bool "Intel IXP4xx GPIO"
 288         depends on ARM # For <asm/mach-types.h>
 289         depends on ARCH_IXP4XX
 290         select GPIO_GENERIC
 291         select IRQ_DOMAIN
 292         select IRQ_DOMAIN_HIERARCHY
 293         help
 294           Say yes here to support the GPIO functionality of a number of Intel
 295           IXP4xx series of chips.
 296
 297           If unsure, say N.
 298
 299 config GPIO_LOONGSON
 300         bool "Loongson-2/3 GPIO support"
 301         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 302         help
 303           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 304
 305 config GPIO_LPC18XX
 306         tristate "NXP LPC18XX/43XX GPIO support"
 307         default y if ARCH_LPC18XX
 308         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 309         select IRQ_DOMAIN_HIERARCHY
 310         help
 311           Select this option to enable GPIO driver for
 312           NXP LPC18XX/43XX devices.
 313
 314 config GPIO_LYNXPOINT
 315         tristate "Intel Lynxpoint GPIO support"
 316         depends on ACPI && X86
 317         select GPIOLIB_IRQCHIP
 318         help
 319           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 320           Requires ACPI device enumeration code to set up a platform device.
 321
 322 config GPIO_MB86S7X
 323         tristate "GPIO support for Fujitsu MB86S7x Platforms"
 324         help
 325           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 326
 327 config GPIO_MENZ127
 328         tristate "MEN 16Z127 GPIO support"
 329         depends on MCB
 330         select GPIO_GENERIC
 331         help
 332           Say yes here to support the MEN 16Z127 GPIO Controller
 333
 334 config GPIO_MM_LANTIQ
 335         bool "Lantiq Memory mapped GPIOs"
 336         depends on LANTIQ && SOC_XWAY
 337         help
 338           This enables support for memory mapped GPIOs on the External Bus Unit
 339           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 340           created by attaching a 16bit latch to the bus.
 341
 342 config GPIO_MPC5200
 343         def_bool y
 344         depends on PPC_MPC52xx
 345
 346 config GPIO_MPC8XXX
 347         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 348         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 349                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 350                    COMPILE_TEST
 351         select GPIO_GENERIC
 352         select IRQ_DOMAIN
 353         help
 354           Say Y here if you're going to use hardware that connects to the
 355           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 356
 357 config GPIO_MT7621
 358         bool "Mediatek MT7621 GPIO Support"
 359         depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 360         depends on OF_GPIO
 361         select GPIO_GENERIC
 362         select GPIOLIB_IRQCHIP
 363         help
 364           Say yes here to support the Mediatek MT7621 SoC GPIO device
 365
 366 config GPIO_MVEBU
 367         def_bool y
 368         depends on PLAT_ORION || ARCH_MVEBU
 369         depends on OF_GPIO
 370         select GENERIC_IRQ_CHIP
 371         select REGMAP_MMIO
 372
 373 config GPIO_MXC
 374         def_bool y
 375         depends on ARCH_MXC
 376         select GPIO_GENERIC
 377         select GENERIC_IRQ_CHIP
 378
 379 config GPIO_MXS
 380         def_bool y
 381         depends on ARCH_MXS
 382         select GPIO_GENERIC
 383         select GENERIC_IRQ_CHIP
 384
 385 config GPIO_OCTEON
 386         tristate "Cavium OCTEON GPIO"
 387         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 388         default y
 389         help
 390           Say yes here to support the on-chip GPIO lines on the OCTEON
 391           family of SOCs.
 392
 393 config GPIO_OMAP
 394         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 395         default y if ARCH_OMAP
 396         depends on ARM
 397         select GENERIC_IRQ_CHIP
 398         select GPIOLIB_IRQCHIP
 399         help
 400           Say yes here to enable GPIO support for TI OMAP SoCs.
 401
 402 config GPIO_PL061
 403         bool "PrimeCell PL061 GPIO support"
 404         depends on ARM_AMBA
 405         select IRQ_DOMAIN
 406         select GPIOLIB_IRQCHIP
 407         help
 408           Say yes here to support the PrimeCell PL061 GPIO device
 409
 410 config GPIO_PMIC_EIC_SPRD
 411         tristate "Spreadtrum PMIC EIC support"
 412         depends on MFD_SC27XX_PMIC || COMPILE_TEST
 413         depends on OF_GPIO
 414         select GPIOLIB_IRQCHIP
 415         help
 416           Say yes here to support Spreadtrum PMIC EIC device.
 417
 418 config GPIO_PXA
 419         bool "PXA GPIO support"
 420         depends on ARCH_PXA || ARCH_MMP
 421         help
 422           Say yes here to support the PXA GPIO device
 423
 424 config GPIO_RCAR
 425         tristate "Renesas R-Car GPIO"
 426         depends on ARCH_RENESAS || COMPILE_TEST
 427         select GPIOLIB_IRQCHIP
 428         help
 429           Say yes here to support GPIO on Renesas R-Car SoCs.
 430
 431 config GPIO_REG
 432         bool
 433         help
 434           A 32-bit single register GPIO fixed in/out implementation.  This
 435           can be used to represent any register as a set of GPIO signals.
 436
 437 config GPIO_SAMA5D2_PIOBU
 438         tristate "SAMA5D2 PIOBU GPIO support"
 439         depends on MFD_SYSCON
 440         depends on OF_GPIO
 441         select GPIO_SYSCON
 442         help
 443           Say yes here to use the PIOBU pins as GPIOs.
 444
 445           PIOBU pins on the SAMA5D2 can be used as GPIOs.
 446           The difference from regular GPIOs is that they
 447           maintain their value during backup/self-refresh.
 448
 449 config GPIO_SIOX
 450         tristate "SIOX GPIO support"
 451         depends on SIOX
 452         select GPIOLIB_IRQCHIP
 453         help
 454           Say yes here to support SIOX I/O devices. These are units connected
 455           via a SIOX bus and have a number of fixed-direction I/O lines.
 456
 457 config GPIO_SNPS_CREG
 458         bool "Synopsys GPIO via CREG (Control REGisters) driver"
 459         depends on ARC || COMPILE_TEST
 460         depends on OF_GPIO
 461         help
 462           This driver supports GPIOs via CREG on various Synopsys SoCs.
 463           This is a single-register MMIO GPIO driver for complex cases
 464           where only several fields in register belong to GPIO lines and
 465           each GPIO line owns a field with different length and on/off value.
 466
 467 config GPIO_SPEAR_SPICS
 468         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 469         depends on PLAT_SPEAR
 470         select GENERIC_IRQ_CHIP
 471         help
 472           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 473
 474 config GPIO_SPRD
 475         tristate "Spreadtrum GPIO support"
 476         depends on ARCH_SPRD || COMPILE_TEST
 477         depends on OF_GPIO
 478         select GPIOLIB_IRQCHIP
 479         help
 480           Say yes here to support Spreadtrum GPIO device.
 481
 482 config GPIO_STA2X11
 483         bool "STA2x11/ConneXt GPIO support"
 484         depends on MFD_STA2X11
 485         select GENERIC_IRQ_CHIP
 486         help
 487           Say yes here to support the STA2x11/ConneXt GPIO device.
 488           The GPIO module has 128 GPIO pins with alternate functions.
 489
 490 config GPIO_STP_XWAY
 491         bool "XWAY STP GPIOs"
 492         depends on SOC_XWAY || COMPILE_TEST
 493         depends on OF_GPIO
 494         help
 495           This enables support for the Serial To Parallel (STP) unit found on
 496           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 497           that can be up to 24 bit. This peripheral is aimed at driving leds.
 498           Some of the gpios/leds can be auto updated by the soc with dsl and
 499           phy status.
 500
 501 config GPIO_SYSCON
 502         tristate "GPIO based on SYSCON"
 503         depends on MFD_SYSCON && OF
 504         help
 505           Say yes here to support GPIO functionality though SYSCON driver.
 506
 507 config GPIO_TB10X
 508         bool
 509         select GPIO_GENERIC
 510         select GENERIC_IRQ_CHIP
 511         select OF_GPIO
 512
 513 config GPIO_TEGRA
 514         bool "NVIDIA Tegra GPIO support"
 515         default ARCH_TEGRA
 516         depends on ARCH_TEGRA || COMPILE_TEST
 517         depends on OF_GPIO
 518         help
 519           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 520
 521 config GPIO_TEGRA186
 522         tristate "NVIDIA Tegra186 GPIO support"
 523         default ARCH_TEGRA_186_SOC
 524         depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
 525         depends on OF_GPIO
 526         select GPIOLIB_IRQCHIP
 527         help
 528           Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 529
 530 config GPIO_TS4800
 531         tristate "TS-4800 DIO blocks and compatibles"
 532         depends on OF_GPIO
 533         depends on SOC_IMX51 || COMPILE_TEST
 534         select GPIO_GENERIC
 535         help
 536           This driver support TS-4800 FPGA GPIO controllers.
 537
 538 config GPIO_THUNDERX
 539         tristate "Cavium ThunderX/OCTEON-TX GPIO"
 540         depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 541         depends on PCI_MSI
 542         select IRQ_DOMAIN_HIERARCHY
 543         select IRQ_FASTEOI_HIERARCHY_HANDLERS
 544         help
 545           Say yes here to support the on-chip GPIO lines on the ThunderX
 546           and OCTEON-TX families of SoCs.
 547
 548 config GPIO_UNIPHIER
 549         tristate "UniPhier GPIO support"
 550         depends on ARCH_UNIPHIER || COMPILE_TEST
 551         depends on OF_GPIO
 552         select IRQ_DOMAIN_HIERARCHY
 553         help
 554           Say yes here to support UniPhier GPIOs.
 555
 556 config GPIO_VF610
 557         def_bool y
 558         depends on ARCH_MXC && SOC_VF610
 559         select GPIOLIB_IRQCHIP
 560         help
 561           Say yes here to support Vybrid vf610 GPIOs.
 562
 563 config GPIO_VR41XX
 564         tristate "NEC VR4100 series General-purpose I/O Uint support"
 565         depends on CPU_VR41XX
 566         help
 567           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 568
 569 config GPIO_VX855
 570         tristate "VIA VX855/VX875 GPIO"
 571         depends on (X86 || COMPILE_TEST) && PCI
 572         select MFD_CORE
 573         select MFD_VX855
 574         help
 575           Support access to the VX855/VX875 GPIO lines through the gpio library.
 576
 577           This driver provides common support for accessing the device,
 578           additional drivers must be enabled in order to use the
 579           functionality of the device.
 580
 581 config GPIO_XGENE
 582         bool "APM X-Gene GPIO controller support"
 583         depends on ARM64 && OF_GPIO
 584         help
 585           This driver is to support the GPIO block within the APM X-Gene SoC
 586           platform's generic flash controller. The GPIO pins are muxed with
 587           the generic flash controller's address and data pins. Say yes
 588           here to enable the GFC GPIO functionality.
 589
 590 config GPIO_XGENE_SB
 591         tristate "APM X-Gene GPIO standby controller support"
 592         depends on ARCH_XGENE && OF_GPIO
 593         select GPIO_GENERIC
 594         select GPIOLIB_IRQCHIP
 595         select IRQ_DOMAIN_HIERARCHY
 596         help
 597           This driver supports the GPIO block within the APM X-Gene
 598           Standby Domain. Say yes here to enable the GPIO functionality.
 599
 600 config GPIO_XILINX
 601         tristate "Xilinx GPIO support"
 602         help
 603           Say yes here to support the Xilinx FPGA GPIO device
 604
 605 config GPIO_XLP
 606         tristate "Netlogic XLP GPIO support"
 607         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 608         select GPIOLIB_IRQCHIP
 609         help
 610           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 611           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 612           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 613           Cavium's ThunderX2 CN99XX SoCs.
 614
 615           If unsure, say N.
 616
 617 config GPIO_XTENSA
 618         bool "Xtensa GPIO32 support"
 619         depends on XTENSA
 620         depends on HAVE_XTENSA_GPIO32
 621         depends on !SMP
 622         help
 623           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 624           and EXPSTATE (output) ports
 625
 626 config GPIO_ZEVIO
 627         bool "LSI ZEVIO SoC memory mapped GPIOs"
 628         depends on ARM && OF_GPIO
 629         help
 630           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 631
 632 config GPIO_ZYNQ
 633         tristate "Xilinx Zynq GPIO support"
 634         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 635         select GPIOLIB_IRQCHIP
 636         help
 637           Say yes here to support Xilinx Zynq GPIO controller.
 638
 639 config GPIO_ZX
 640         bool "ZTE ZX GPIO support"
 641         depends on ARCH_ZX || COMPILE_TEST
 642         select GPIOLIB_IRQCHIP
 643         help
 644           Say yes here to support the GPIO device on ZTE ZX SoCs.
 645
 646 config GPIO_LOONGSON1
 647         tristate "Loongson1 GPIO support"
 648         depends on MACH_LOONGSON32
 649         select GPIO_GENERIC
 650         help
 651           Say Y or M here to support GPIO on Loongson1 SoCs.
 652
 653 config GPIO_AMD_FCH
 654         tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 655         help
 656           This option enables driver for GPIO on AMDs Fusion Controller Hub,
 657           as found on G-series SOCs (eg. GX-412TC)
 658
 659           Note: This driver doesn't registers itself automatically, as it
 660           needs to be provided with platform specific configuration.
 661           (See eg. CONFIG_PCENGINES_APU2.)
 662 endmenu
 663
 664 menu "Port-mapped I/O GPIO drivers"
 665         depends on X86 # Unconditional I/O space access
 666
 667 config GPIO_104_DIO_48E
 668         tristate "ACCES 104-DIO-48E GPIO support"
 669         depends on PC104
 670         select ISA_BUS_API
 671         select GPIOLIB_IRQCHIP
 672         help
 673           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 674           104-DIO-24E). The base port addresses for the devices may be
 675           configured via the base module parameter. The interrupt line numbers
 676           for the devices may be configured via the irq module parameter.
 677
 678 config GPIO_104_IDIO_16
 679         tristate "ACCES 104-IDIO-16 GPIO support"
 680         depends on PC104
 681         select ISA_BUS_API
 682         select GPIOLIB_IRQCHIP
 683         help
 684           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 685           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 686           base port addresses for the devices may be configured via the base
 687           module parameter. The interrupt line numbers for the devices may be
 688           configured via the irq module parameter.
 689
 690 config GPIO_104_IDI_48
 691         tristate "ACCES 104-IDI-48 GPIO support"
 692         depends on PC104
 693         select ISA_BUS_API
 694         select GPIOLIB_IRQCHIP
 695         help
 696           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 697           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 698           the devices may be configured via the base module parameter. The
 699           interrupt line numbers for the devices may be configured via the irq
 700           module parameter.
 701
 702 config GPIO_F7188X
 703         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 704         help
 705           This option enables support for GPIOs found on Fintek Super-I/O
 706           chips F71869, F71869A, F71882FG, F71889F and F81866.
 707
 708           To compile this driver as a module, choose M here: the module will
 709           be called f7188x-gpio.
 710
 711 config GPIO_GPIO_MM
 712         tristate "Diamond Systems GPIO-MM GPIO support"
 713         depends on PC104
 714         select ISA_BUS_API
 715         help
 716           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 717
 718           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 719           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 720           support for these 48 channels of digital I/O.
 721
 722           The base port addresses for the devices may be configured via the base
 723           array module parameter.
 724
 725 config GPIO_IT87
 726         tristate "IT87xx GPIO support"
 727         help
 728           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 729
 730           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 731           supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 732           well.
 733
 734           To compile this driver as a module, choose M here: the module will
 735           be called gpio_it87
 736
 737 config GPIO_SCH
 738         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 739         depends on (X86 || COMPILE_TEST) && PCI
 740         select MFD_CORE
 741         select LPC_SCH
 742         help
 743           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 744           Intel Tunnel Creek processor, Intel Centerton processor or
 745           Intel Quark X1000 SoC.
 746
 747           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 748           powered by the core power rail and are turned off during sleep
 749           modes (S3 and higher). The remaining four GPIOs are powered by
 750           the Intel SCH suspend power supply. These GPIOs remain
 751           active during S3. The suspend powered GPIOs can be used to wake the
 752           system from the Suspend-to-RAM state.
 753
 754           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 755           core power rail and 9 from suspend power supply.
 756
 757           The Intel Centerton processor has a total of 30 GPIO pins.
 758           Twenty-one are powered by the core power rail and 9 from the
 759           suspend power supply.
 760
 761           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 762           power well and 6 from the suspend power well.
 763
 764 config GPIO_SCH311X
 765         tristate "SMSC SCH311x SuperI/O GPIO"
 766         help
 767           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 768           SCH3116 "Super I/O" chipsets.
 769
 770           To compile this driver as a module, choose M here: the module will
 771           be called gpio-sch311x.
 772
 773 config GPIO_TS5500
 774         tristate "TS-5500 DIO blocks and compatibles"
 775         depends on TS5500 || COMPILE_TEST
 776         help
 777           This driver supports Digital I/O exposed by pin blocks found on some
 778           Technologic Systems platforms. It includes, but is not limited to, 3
 779           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 780           LCD port.
 781
 782 config GPIO_WINBOND
 783         tristate "Winbond Super I/O GPIO support"
 784         select ISA_BUS_API
 785         help
 786           This option enables support for GPIOs found on Winbond Super I/O
 787           chips.
 788           Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 789           supported.
 790
 791           You will need to provide a module parameter "gpios", or a
 792           boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 793           ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 794
 795           To compile this driver as a module, choose M here: the module will
 796           be called gpio-winbond.
 797
 798 config GPIO_WS16C48
 799         tristate "WinSystems WS16C48 GPIO support"
 800         select ISA_BUS_API
 801         select GPIOLIB_IRQCHIP
 802         help
 803           Enables GPIO support for the WinSystems WS16C48. The base port
 804           addresses for the devices may be configured via the base module
 805           parameter. The interrupt line numbers for the devices may be
 806           configured via the irq module parameter.
 807
 808 endmenu
 809
 810 menu "I2C GPIO expanders"
 811         depends on I2C
 812
 813 config GPIO_ADP5588
 814         tristate "ADP5588 I2C GPIO expander"
 815         help
 816           This option enables support for 18 GPIOs found
 817           on Analog Devices ADP5588 GPIO Expanders.
 818
 819 config GPIO_ADP5588_IRQ
 820         bool "Interrupt controller support for ADP5588"
 821         depends on GPIO_ADP5588=y
 822         select GPIOLIB_IRQCHIP
 823         help
 824           Say yes here to enable the adp5588 to be used as an interrupt
 825           controller. It requires the driver to be built in the kernel.
 826
 827 config GPIO_ADNP
 828         tristate "Avionic Design N-bit GPIO expander"
 829         depends on OF_GPIO
 830         select GPIOLIB_IRQCHIP
 831         help
 832           This option enables support for N GPIOs found on Avionic Design
 833           I2C GPIO expanders. The register space will be extended by powers
 834           of two, so the controller will need to accommodate for that. For
 835           example: if a controller provides 48 pins, 6 registers will be
 836           enough to represent all pins, but the driver will assume a
 837           register layout for 64 pins (8 registers).
 838
 839 config GPIO_GW_PLD
 840         tristate "Gateworks PLD GPIO Expander"
 841         depends on OF_GPIO
 842         help
 843           Say yes here to provide access to the Gateworks I2C PLD GPIO
 844           Expander. This is used at least on the Cambria GW2358-4.
 845
 846 config GPIO_MAX7300
 847         tristate "Maxim MAX7300 GPIO expander"
 848         select GPIO_MAX730X
 849         help
 850           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 851
 852 config GPIO_MAX732X
 853         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 854         help
 855           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 856           Port Expanders. Each IO port on these chips has a fixed role of
 857           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 858           Input and Output (designed by 'P'). The combinations are listed
 859           below:
 860
 861           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 862                         max7322 (4I4O), max7323 (4P4O)
 863
 864           16 bits:      max7324 (8I8O), max7325 (8P8O),
 865                         max7326 (4I12O), max7327 (4P12O)
 866
 867           Board setup code must specify the model to use, and the start
 868           number for these GPIOs.
 869
 870 config GPIO_MAX732X_IRQ
 871         bool "Interrupt controller support for MAX732x"
 872         depends on GPIO_MAX732X=y
 873         select GPIOLIB_IRQCHIP
 874         help
 875           Say yes here to enable the max732x to be used as an interrupt
 876           controller. It requires the driver to be built in the kernel.
 877
 878 config GPIO_MC9S08DZ60
 879         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 880         depends on I2C=y && MACH_MX35_3DS
 881         help
 882           Select this to enable the MC9S08DZ60 GPIO driver
 883
 884 config GPIO_PCA953X
 885         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 886         select REGMAP_I2C
 887         help
 888           Say yes here to provide access to several register-oriented
 889           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 890           models include:
 891
 892           4 bits:       pca9536, pca9537
 893
 894           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 895                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 896
 897           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 898                         tca6416
 899
 900           24 bits:      tca6424
 901
 902           40 bits:      pca9505, pca9698
 903
 904 config GPIO_PCA953X_IRQ
 905         bool "Interrupt controller support for PCA953x"
 906         depends on GPIO_PCA953X=y
 907         select GPIOLIB_IRQCHIP
 908         help
 909           Say yes here to enable the pca953x to be used as an interrupt
 910           controller. It requires the driver to be built in the kernel.
 911
 912 config GPIO_PCF857X
 913         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 914         select GPIOLIB_IRQCHIP
 915         select IRQ_DOMAIN
 916         help
 917           Say yes here to provide access to most "quasi-bidirectional" I2C
 918           GPIO expanders used for additional digital outputs or inputs.
 919           Most of these parts are from NXP, though TI is a second source for
 920           some of them.  Compatible models include:
 921
 922           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 923                     pca9670, pca9672, pca9674, pca9674a,
 924                     max7328, max7329
 925
 926           16 bits:  pcf8575, pcf8575c, pca8575,
 927                     pca9671, pca9673, pca9675
 928
 929           Your board setup code will need to declare the expanders in
 930           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 931           can then be used from drivers and other kernel code, just like
 932           other GPIOs, but only accessible from task contexts.
 933
 934           This driver provides an in-kernel interface to those GPIOs using
 935           platform-neutral GPIO calls.
 936
 937 config GPIO_TPIC2810
 938         tristate "TPIC2810 8-Bit I2C GPO expander"
 939         help
 940           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 941
 942           To compile this driver as a module, choose M here: the module will
 943           be called gpio-tpic2810.
 944
 945 config GPIO_TS4900
 946         tristate "Technologic Systems FPGA I2C GPIO"
 947         depends on SOC_IMX6 || COMPILE_TEST
 948         select REGMAP_I2C
 949         help
 950           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 951           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 952
 953 endmenu
 954
 955 menu "MFD GPIO expanders"
 956
 957 config GPIO_ADP5520
 958         tristate "GPIO Support for ADP5520 PMIC"
 959         depends on PMIC_ADP5520
 960         help
 961           This option enables support for on-chip GPIO found
 962           on Analog Devices ADP5520 PMICs.
 963
 964 config GPIO_ALTERA_A10SR
 965         tristate "Altera Arria10 System Resource GPIO"
 966         depends on MFD_ALTERA_A10SR
 967         help
 968           Driver for Arria10 Development Kit GPIO expansion which
 969           includes reads of pushbuttons and DIP switches as well
 970           as writes to LEDs.
 971
 972 config GPIO_ARIZONA
 973         tristate "Wolfson Microelectronics Arizona class devices"
 974         depends on MFD_ARIZONA
 975         help
 976           Support for GPIOs on Wolfson Arizona class devices.
 977
 978 config GPIO_BD9571MWV
 979         tristate "ROHM BD9571 GPIO support"
 980         depends on MFD_BD9571MWV
 981         help
 982           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
 983           available on the ROHM PMIC in total, both of which can also
 984           generate interrupts.
 985
 986           This driver can also be built as a module. If so, the module
 987           will be called gpio-bd9571mwv.
 988
 989 config GPIO_CRYSTAL_COVE
 990         tristate "GPIO support for Crystal Cove PMIC"
 991         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
 992         select GPIOLIB_IRQCHIP
 993         help
 994           Support for GPIO pins on Crystal Cove PMIC.
 995
 996           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 997           inside.
 998
 999           This driver can also be built as a module. If so, the module will be
1000           called gpio-crystalcove.
1001
1002 config GPIO_CS5535
1003         tristate "AMD CS5535/CS5536 GPIO support"
1004         depends on X86 || MIPS || COMPILE_TEST
1005         depends on MFD_CS5535
1006         help
1007           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1008           can be used for quite a number of things.  The CS5535/6 is found on
1009           AMD Geode and Lemote Yeeloong devices.
1010
1011           If unsure, say N.
1012
1013 config GPIO_DA9052
1014         tristate "Dialog DA9052 GPIO"
1015         depends on PMIC_DA9052
1016         help
1017           Say yes here to enable the GPIO driver for the DA9052 chip.
1018
1019 config GPIO_DA9055
1020         tristate "Dialog Semiconductor DA9055 GPIO"
1021         depends on MFD_DA9055
1022         help
1023           Say yes here to enable the GPIO driver for the DA9055 chip.
1024
1025           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1026           be controller by this driver.
1027
1028           If driver is built as a module it will be called gpio-da9055.
1029
1030 config GPIO_DLN2
1031         tristate "Diolan DLN2 GPIO support"
1032         depends on MFD_DLN2
1033         select GPIOLIB_IRQCHIP
1034
1035         help
1036           Select this option to enable GPIO driver for the Diolan DLN2
1037           board.
1038
1039           This driver can also be built as a module. If so, the module
1040           will be called gpio-dln2.
1041
1042 config HTC_EGPIO
1043         bool "HTC EGPIO support"
1044         depends on GPIOLIB && ARM
1045         help
1046           This driver supports the CPLD egpio chip present on
1047           several HTC phones.  It provides basic support for input
1048           pins, output pins, and irqs.
1049
1050 config GPIO_JANZ_TTL
1051         tristate "Janz VMOD-TTL Digital IO Module"
1052         depends on MFD_JANZ_CMODIO
1053         help
1054           This enables support for the Janz VMOD-TTL Digital IO module.
1055           This driver provides support for driving the pins in output
1056           mode only. Input mode is not supported.
1057
1058 config GPIO_KEMPLD
1059         tristate "Kontron ETX / COMexpress GPIO"
1060         depends on MFD_KEMPLD
1061         help
1062           This enables support for the PLD GPIO interface on some Kontron ETX
1063           and COMexpress (ETXexpress) modules.
1064
1065           This driver can also be built as a module. If so, the module will be
1066           called gpio-kempld.
1067
1068 config GPIO_LP3943
1069         tristate "TI/National Semiconductor LP3943 GPIO expander"
1070         depends on MFD_LP3943
1071         help
1072           GPIO driver for LP3943 MFD.
1073           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1074           Open drain outputs are required for this usage.
1075
1076 config GPIO_LP873X
1077         tristate "TI LP873X GPO"
1078         depends on MFD_TI_LP873X
1079         help
1080           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1081           on LP873X PMICs.
1082
1083           This driver can also be built as a module. If so, the module will be
1084           called gpio-lp873x.
1085
1086 config GPIO_LP87565
1087         tristate "TI LP87565 GPIO"
1088         depends on MFD_TI_LP87565
1089         help
1090           This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1091           on LP87565 PMICs.
1092
1093           This driver can also be built as a module. If so, the module will be
1094           called gpio-lp87565.
1095
1096 config GPIO_MADERA
1097         tristate "Cirrus Logic Madera class codecs"
1098         depends on PINCTRL_MADERA
1099         help
1100           Support for GPIOs on Cirrus Logic Madera class codecs.
1101
1102 config GPIO_MAX77620
1103         tristate "GPIO support for PMIC MAX77620 and MAX20024"
1104         depends on MFD_MAX77620
1105         help
1106           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1107           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1108           driver also provides interrupt support for each of the gpios.
1109           Say yes here to enable the max77620 to be used as gpio controller.
1110
1111 config GPIO_MAX77650
1112         tristate "Maxim MAX77650/77651 GPIO support"
1113         depends on MFD_MAX77650
1114         help
1115           GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1116           These chips have a single pin that can be configured as GPIO.
1117
1118 config GPIO_MSIC
1119         bool "Intel MSIC mixed signal gpio support"
1120         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1121         help
1122           Enable support for GPIO on intel MSIC controllers found in
1123           intel MID devices
1124
1125 config GPIO_PALMAS
1126         bool "TI PALMAS series PMICs GPIO"
1127         depends on MFD_PALMAS
1128         help
1129           Select this option to enable GPIO driver for the TI PALMAS
1130           series chip family.
1131
1132 config GPIO_RC5T583
1133         bool "RICOH RC5T583 GPIO"
1134         depends on MFD_RC5T583
1135         help
1136           Select this option to enable GPIO driver for the Ricoh RC5T583
1137           chip family.
1138           This driver provides the support for driving/reading the gpio pins
1139           of RC5T583 device through standard gpio library.
1140
1141 config GPIO_STMPE
1142         bool "STMPE GPIOs"
1143         depends on MFD_STMPE
1144         depends on OF_GPIO
1145         select GPIOLIB_IRQCHIP
1146         help
1147           This enables support for the GPIOs found on the STMPE I/O
1148           Expanders.
1149
1150 config GPIO_TC3589X
1151         bool "TC3589X GPIOs"
1152         depends on MFD_TC3589X
1153         depends on OF_GPIO
1154         select GPIOLIB_IRQCHIP
1155         help
1156           This enables support for the GPIOs found on the TC3589X
1157           I/O Expander.
1158
1159 config GPIO_TIMBERDALE
1160         bool "Support for timberdale GPIO IP"
1161         depends on MFD_TIMBERDALE
1162         ---help---
1163         Add support for the GPIO IP in the timberdale FPGA.
1164
1165 config GPIO_TPS65086
1166         tristate "TI TPS65086 GPO"
1167         depends on MFD_TPS65086
1168         help
1169           This driver supports the GPO on TI TPS65086x PMICs.
1170
1171 config GPIO_TPS65218
1172         tristate "TPS65218 GPIO"
1173         depends on MFD_TPS65218
1174         help
1175           Select this option to enable GPIO driver for the TPS65218
1176           chip family.
1177
1178 config GPIO_TPS6586X
1179         bool "TPS6586X GPIO"
1180         depends on MFD_TPS6586X
1181         help
1182           Select this option to enable GPIO driver for the TPS6586X
1183           chip family.
1184
1185 config GPIO_TPS65910
1186         bool "TPS65910 GPIO"
1187         depends on MFD_TPS65910
1188         help
1189           Select this option to enable GPIO driver for the TPS65910
1190           chip family.
1191
1192 config GPIO_TPS65912
1193         tristate "TI TPS65912 GPIO"
1194         depends on MFD_TPS65912
1195         help
1196           This driver supports TPS65912 gpio chip
1197
1198 config GPIO_TPS68470
1199         bool "TPS68470 GPIO"
1200         depends on MFD_TPS68470
1201         help
1202           Select this option to enable GPIO driver for the TPS68470
1203           chip family.
1204           There are 7 GPIOs and few sensor related GPIOs supported
1205           by the TPS68470. While the 7 GPIOs can be configured as
1206           input or output as appropriate, the sensor related GPIOs
1207           are "output only" GPIOs.
1208
1209           This driver config is bool, as the GPIO functionality
1210           of the TPS68470 must be available before dependent
1211           drivers are loaded.
1212
1213 config GPIO_TQMX86
1214         tristate "TQ-Systems QTMX86 GPIO"
1215         depends on MFD_TQMX86 || COMPILE_TEST
1216         select GPIOLIB_IRQCHIP
1217         help
1218           This driver supports GPIO on the TQMX86 IO controller.
1219
1220 config GPIO_TWL4030
1221         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1222         depends on TWL4030_CORE
1223         help
1224           Say yes here to access the GPIO signals of various multi-function
1225           power management chips from Texas Instruments.
1226
1227 config GPIO_TWL6040
1228         tristate "TWL6040 GPO"
1229         depends on TWL6040_CORE
1230         help
1231           Say yes here to access the GPO signals of twl6040
1232           audio chip from Texas Instruments.
1233
1234 config GPIO_UCB1400
1235         tristate "Philips UCB1400 GPIO"
1236         depends on UCB1400_CORE
1237         help
1238           This enables support for the Philips UCB1400 GPIO pins.
1239           The UCB1400 is an AC97 audio codec.
1240
1241 config GPIO_WHISKEY_COVE
1242         tristate "GPIO support for Whiskey Cove PMIC"
1243         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1244         select GPIOLIB_IRQCHIP
1245         help
1246           Support for GPIO pins on Whiskey Cove PMIC.
1247
1248           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1249           inside.
1250
1251           This driver can also be built as a module. If so, the module will be
1252           called gpio-wcove.
1253
1254 config GPIO_WM831X
1255         tristate "WM831x GPIOs"
1256         depends on MFD_WM831X
1257         help
1258           Say yes here to access the GPIO signals of WM831x power management
1259           chips from Wolfson Microelectronics.
1260
1261 config GPIO_WM8350
1262         tristate "WM8350 GPIOs"
1263         depends on MFD_WM8350
1264         help
1265           Say yes here to access the GPIO signals of WM8350 power management
1266           chips from Wolfson Microelectronics.
1267
1268 config GPIO_WM8994
1269         tristate "WM8994 GPIOs"
1270         depends on MFD_WM8994
1271         help
1272           Say yes here to access the GPIO signals of WM8994 audio hub
1273           CODECs from Wolfson Microelectronics.
1274
1275 endmenu
1276
1277 menu "PCI GPIO expanders"
1278         depends on PCI
1279
1280 config GPIO_AMD8111
1281         tristate "AMD 8111 GPIO driver"
1282         depends on X86 || COMPILE_TEST
1283         help
1284           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1285
1286           Note, that usually system firmware/ACPI handles GPIO pins on their
1287           own and users might easily break their systems with uncarefull usage
1288           of this driver!
1289
1290           If unsure, say N
1291
1292 config GPIO_BT8XX
1293         tristate "BT8XX GPIO abuser"
1294         depends on VIDEO_BT848=n
1295         help
1296           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1297           as a cheap PCI GPIO card.
1298
1299           This chip can be found on Miro, Hauppauge and STB TV-cards.
1300
1301           The card needs to be physically altered for using it as a
1302           GPIO card. For more information on how to build a GPIO card
1303           from a BT8xx TV card, see the documentation file at
1304           Documentation/bt8xxgpio.txt
1305
1306           If unsure, say N.
1307
1308 config GPIO_INTEL_MID
1309         bool "Intel MID GPIO support"
1310         depends on X86_INTEL_MID
1311         select GPIOLIB_IRQCHIP
1312         help
1313           Say Y here to support Intel MID GPIO.
1314
1315 config GPIO_MERRIFIELD
1316         tristate "Intel Merrifield GPIO support"
1317         depends on X86_INTEL_MID
1318         select GPIOLIB_IRQCHIP
1319         help
1320           Say Y here to support Intel Merrifield GPIO.
1321
1322 config GPIO_MLXBF
1323         tristate "Mellanox BlueField SoC GPIO"
1324         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1325         select GPIO_GENERIC
1326         help
1327           Say Y here if you want GPIO support on Mellanox BlueField SoC.
1328
1329 config GPIO_ML_IOH
1330         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1331         depends on X86 || COMPILE_TEST
1332         select GENERIC_IRQ_CHIP
1333         help
1334           ML7213 is companion chip for Intel Atom E6xx series.
1335           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1336           Hub) which is for IVI(In-Vehicle Infotainment) use.
1337           This driver can access the IOH's GPIO device.
1338
1339 config GPIO_PCH
1340         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1341         depends on X86_32 || MIPS || COMPILE_TEST
1342         select GENERIC_IRQ_CHIP
1343         help
1344           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1345           which is an IOH(Input/Output Hub) for x86 embedded processor.
1346           This driver can access PCH GPIO device.
1347
1348           This driver also can be used for LAPIS Semiconductor IOH(Input/
1349           Output Hub), ML7223 and ML7831.
1350           ML7223 IOH is for MP(Media Phone) use.
1351           ML7831 IOH is for general purpose use.
1352           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1353           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1354
1355 config GPIO_PCI_IDIO_16
1356         tristate "ACCES PCI-IDIO-16 GPIO support"
1357         select GPIOLIB_IRQCHIP
1358         help
1359           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1360           generated when any of the inputs change state (low to high or high to
1361           low). Input filter control is not supported by this driver, and the
1362           input filters are deactivated by this driver.
1363
1364 config GPIO_PCIE_IDIO_24
1365         tristate "ACCES PCIe-IDIO-24 GPIO support"
1366         select GPIOLIB_IRQCHIP
1367         help
1368           Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1369           PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1370           when any of the inputs change state (low to high or high to low).
1371           Input filter control is not supported by this driver, and the input
1372           filters are deactivated by this driver.
1373
1374 config GPIO_RDC321X
1375         tristate "RDC R-321x GPIO support"
1376         select MFD_CORE
1377         select MFD_RDC321X
1378         help
1379           Support for the RDC R321x SoC GPIOs over southbridge
1380           PCI configuration space.
1381
1382 config GPIO_SODAVILLE
1383         bool "Intel Sodaville GPIO support"
1384         depends on X86 && OF
1385         select GPIO_GENERIC
1386         select GENERIC_IRQ_CHIP
1387         help
1388           Say Y here to support Intel Sodaville GPIO.
1389
1390 endmenu
1391
1392 menu "SPI GPIO expanders"
1393         depends on SPI_MASTER
1394
1395 config GPIO_74X164
1396         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1397         depends on OF_GPIO
1398         help
1399           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1400           shift registers. This driver can be used to provide access
1401           to more gpio outputs.
1402
1403 config GPIO_MAX3191X
1404         tristate "Maxim MAX3191x industrial serializer"
1405         select CRC8
1406         help
1407           GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1408           MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1409           chip to make 8 digital 24V inputs available via SPI.  Supports
1410           CRC checksums to guard against electromagnetic interference,
1411           as well as undervoltage and overtemperature detection.
1412
1413 config GPIO_MAX7301
1414         tristate "Maxim MAX7301 GPIO expander"
1415         select GPIO_MAX730X
1416         help
1417           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1418
1419 config GPIO_MC33880
1420         tristate "Freescale MC33880 high-side/low-side switch"
1421         help
1422           SPI driver for Freescale MC33880 high-side/low-side switch.
1423           This provides GPIO interface supporting inputs and outputs.
1424
1425 config GPIO_PISOSR
1426         tristate "Generic parallel-in/serial-out shift register"
1427         help
1428           GPIO driver for SPI compatible parallel-in/serial-out shift
1429           registers. These are input only devices.
1430
1431 config GPIO_XRA1403
1432         tristate "EXAR XRA1403 16-bit GPIO expander"
1433         select REGMAP_SPI
1434         help
1435           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1436
1437 endmenu
1438
1439 menu "USB GPIO expanders"
1440         depends on USB
1441
1442 config GPIO_VIPERBOARD
1443         tristate "Viperboard GPIO a & b support"
1444         depends on MFD_VIPERBOARD
1445         help
1446           Say yes here to access the GPIO signals of Nano River
1447           Technologies Viperboard. There are two GPIO chips on the
1448           board: gpioa and gpiob.
1449           See viperboard API specification and Nano
1450           River Tech's viperboard.h for detailed meaning
1451           of the module parameters.
1452
1453 endmenu
1454
1455 config GPIO_MOCKUP
1456         tristate "GPIO Testing Driver"
1457         depends on GPIOLIB
1458         select IRQ_SIM
1459         help
1460           This enables GPIO Testing driver, which provides a way to test GPIO
1461           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1462           must be selected for this test.
1463           User could use it through the script in
1464           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1465           it.
1466
1467 endif