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 a sysfs interface for GPIOs.
  66
  67           This is mostly useful to work around omissions in a system's
  68           kernel support.  Those are common in custom and semicustom
  69           hardware assembled using standard kernels with a minimum of
  70           custom patches.  In those cases, userspace code may import
  71           a given GPIO from the kernel, if no kernel driver requested it.
  72
  73           Kernel drivers may also request that a particular GPIO be
  74           exported to userspace; this can be useful when debugging.
  75
  76 config GPIO_GENERIC
  77         depends on HAS_IOMEM # Only for IOMEM drivers
  78         tristate
  79
  80 # put drivers in the right section, in alphabetical order
  81
  82 # This symbol is selected by both I2C and SPI expanders
  83 config GPIO_MAX730X
  84         tristate
  85
  86 menu "Memory mapped GPIO drivers"
  87         depends on HAS_IOMEM
  88
  89 config GPIO_74XX_MMIO
  90         tristate "GPIO driver for 74xx-ICs with MMIO access"
  91         depends on OF_GPIO
  92         select GPIO_GENERIC
  93         help
  94           Say yes here to support GPIO functionality for 74xx-compatible ICs
  95           with MMIO access. Compatible models include:
  96             1 bit:      741G125 (Input), 741G74 (Output)
  97             2 bits:     742G125 (Input), 7474 (Output)
  98             4 bits:     74125 (Input), 74175 (Output)
  99             6 bits:     74365 (Input), 74174 (Output)
 100             8 bits:     74244 (Input), 74273 (Output)
 101             16 bits:    741624 (Input), 7416374 (Output)
 102
 103 config GPIO_ALTERA
 104         tristate "Altera GPIO"
 105         depends on OF_GPIO
 106         select GPIOLIB_IRQCHIP
 107         help
 108           Say Y or M here to build support for the Altera PIO device.
 109
 110           If driver is built as a module it will be called gpio-altera.
 111
 112 config GPIO_AMDPT
 113         tristate "AMD Promontory GPIO support"
 114         depends on ACPI
 115         select GPIO_GENERIC
 116         help
 117           driver for GPIO functionality on Promontory IOHub
 118           Require ACPI ASL code to enumerate as a platform device.
 119
 120 config GPIO_ASPEED
 121         tristate "Aspeed GPIO support"
 122         depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 123         select GPIOLIB_IRQCHIP
 124         help
 125           Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 126
 127 config GPIO_ATH79
 128         tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 129         default y if ATH79
 130         depends on ATH79 || COMPILE_TEST
 131         select GPIO_GENERIC
 132         select GPIOLIB_IRQCHIP
 133         help
 134           Select this option to enable GPIO driver for
 135           Atheros AR71XX/AR724X/AR913X SoC devices.
 136
 137 config GPIO_RASPBERRYPI_EXP
 138         tristate "Raspberry Pi 3 GPIO Expander"
 139         default RASPBERRYPI_FIRMWARE
 140         depends on OF_GPIO
 141         # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 142         # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 143         depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 144         help
 145           Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 146           the firmware mailbox to communicate with VideoCore on BCM283x chips.
 147
 148 config GPIO_BCM_KONA
 149         bool "Broadcom Kona GPIO"
 150         depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 151         help
 152           Turn on GPIO support for Broadcom "Kona" chips.
 153
 154 config GPIO_BRCMSTB
 155         tristate "BRCMSTB GPIO support"
 156         default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 157         depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 158         select GPIO_GENERIC
 159         select IRQ_DOMAIN
 160         help
 161           Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 162
 163 config GPIO_CADENCE
 164         tristate "Cadence GPIO support"
 165         depends on OF_GPIO
 166         select GPIO_GENERIC
 167         select GPIOLIB_IRQCHIP
 168         help
 169           Say yes here to enable support for Cadence GPIO controller.
 170
 171 config GPIO_CLPS711X
 172         tristate "CLPS711X GPIO support"
 173         depends on ARCH_CLPS711X || COMPILE_TEST
 174         select GPIO_GENERIC
 175         help
 176           Say yes here to support GPIO on CLPS711X SoCs.
 177
 178 config GPIO_DAVINCI
 179         bool "TI Davinci/Keystone GPIO support"
 180         default y if ARCH_DAVINCI
 181         depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 182         help
 183           Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 184
 185 config GPIO_DWAPB
 186         tristate "Synopsys DesignWare APB GPIO driver"
 187         select GPIO_GENERIC
 188         select GENERIC_IRQ_CHIP
 189         help
 190           Say Y or M here to build support for the Synopsys DesignWare APB
 191           GPIO block.
 192
 193 config GPIO_EIC_SPRD
 194         tristate "Spreadtrum EIC support"
 195         depends on ARCH_SPRD || COMPILE_TEST
 196         depends on OF_GPIO
 197         select GPIOLIB_IRQCHIP
 198         help
 199           Say yes here to support Spreadtrum EIC device.
 200
 201 config GPIO_EM
 202         tristate "Emma Mobile GPIO"
 203         depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 204         help
 205           Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 206
 207 config GPIO_EP93XX
 208         def_bool y
 209         depends on ARCH_EP93XX
 210         select GPIO_GENERIC
 211         select GPIOLIB_IRQCHIP
 212
 213 config GPIO_EXAR
 214         tristate "Support for GPIO pins on XR17V352/354/358"
 215         depends on SERIAL_8250_EXAR
 216         help
 217           Selecting this option will enable handling of GPIO pins present
 218           on Exar XR17V352/354/358 chips.
 219
 220 config GPIO_GE_FPGA
 221         bool "GE FPGA based GPIO"
 222         depends on GE_FPGA
 223         select GPIO_GENERIC
 224         help
 225           Support for common GPIO functionality provided on some GE Single Board
 226           Computers.
 227
 228           This driver provides basic support (configure as input or output, read
 229           and write pin state) for GPIO implemented in a number of GE single
 230           board computers.
 231
 232 config GPIO_FTGPIO010
 233         bool "Faraday FTGPIO010 GPIO"
 234         depends on OF_GPIO
 235         select GPIO_GENERIC
 236         select GPIOLIB_IRQCHIP
 237         default (ARCH_GEMINI || ARCH_MOXART)
 238         help
 239           Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 240           Cortina systems Gemini platforms, Moxa ART and others.
 241
 242 config GPIO_GENERIC_PLATFORM
 243         tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 244         select GPIO_GENERIC
 245         help
 246           Say yes here to support basic platform_device memory-mapped GPIO controllers.
 247
 248 config GPIO_GRGPIO
 249         tristate "Aeroflex Gaisler GRGPIO support"
 250         depends on OF_GPIO
 251         select GPIO_GENERIC
 252         select IRQ_DOMAIN
 253         help
 254           Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 255           VHDL IP core library.
 256
 257 config GPIO_HLWD
 258         tristate "Nintendo Wii (Hollywood) GPIO"
 259         depends on OF_GPIO
 260         select GPIO_GENERIC
 261         select GPIOLIB_IRQCHIP
 262         help
 263           Select this to support the GPIO controller of the Nintendo Wii.
 264
 265           If unsure, say N.
 266
 267 config GPIO_ICH
 268         tristate "Intel ICH GPIO"
 269         depends on PCI && X86
 270         select MFD_CORE
 271         select LPC_ICH
 272         help
 273           Say yes here to support the GPIO functionality of a number of Intel
 274           ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 275           ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 276           Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 277
 278           If unsure, say N.
 279
 280 config GPIO_IOP
 281         tristate "Intel IOP GPIO"
 282         depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST
 283         select GPIO_GENERIC
 284         help
 285           Say yes here to support the GPIO functionality of a number of Intel
 286           IOP32X or IOP33X.
 287
 288           If unsure, say N.
 289
 290 config GPIO_IXP4XX
 291         bool "Intel IXP4xx GPIO"
 292         depends on ARM # For <asm/mach-types.h>
 293         depends on ARCH_IXP4XX
 294         select GPIO_GENERIC
 295         select IRQ_DOMAIN
 296         select IRQ_DOMAIN_HIERARCHY
 297         help
 298           Say yes here to support the GPIO functionality of a number of Intel
 299           IXP4xx series of chips.
 300
 301           If unsure, say N.
 302
 303 config GPIO_LOONGSON
 304         bool "Loongson-2/3 GPIO support"
 305         depends on CPU_LOONGSON2 || CPU_LOONGSON3
 306         help
 307           driver for GPIO functionality on Loongson-2F/3A/3B processors.
 308
 309 config GPIO_LPC18XX
 310         tristate "NXP LPC18XX/43XX GPIO support"
 311         default y if ARCH_LPC18XX
 312         depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 313         select IRQ_DOMAIN_HIERARCHY
 314         help
 315           Select this option to enable GPIO driver for
 316           NXP LPC18XX/43XX devices.
 317
 318 config GPIO_LYNXPOINT
 319         tristate "Intel Lynxpoint GPIO support"
 320         depends on ACPI && X86
 321         select GPIOLIB_IRQCHIP
 322         help
 323           driver for GPIO functionality on Intel Lynxpoint PCH chipset
 324           Requires ACPI device enumeration code to set up a platform device.
 325
 326 config GPIO_MB86S7X
 327         tristate "GPIO support for Fujitsu MB86S7x Platforms"
 328         help
 329           Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 330
 331 config GPIO_MENZ127
 332         tristate "MEN 16Z127 GPIO support"
 333         depends on MCB
 334         select GPIO_GENERIC
 335         help
 336           Say yes here to support the MEN 16Z127 GPIO Controller
 337
 338 config GPIO_MM_LANTIQ
 339         bool "Lantiq Memory mapped GPIOs"
 340         depends on LANTIQ && SOC_XWAY
 341         help
 342           This enables support for memory mapped GPIOs on the External Bus Unit
 343           (EBU) found on Lantiq SoCs. The gpios are output only as they are
 344           created by attaching a 16bit latch to the bus.
 345
 346 config GPIO_MPC5200
 347         def_bool y
 348         depends on PPC_MPC52xx
 349
 350 config GPIO_MPC8XXX
 351         bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 352         depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 353                    FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 354                    COMPILE_TEST
 355         select GPIO_GENERIC
 356         select IRQ_DOMAIN
 357         help
 358           Say Y here if you're going to use hardware that connects to the
 359           MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 360
 361 config GPIO_MT7621
 362         bool "Mediatek MT7621 GPIO Support"
 363         depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 364         depends on OF_GPIO
 365         select GPIO_GENERIC
 366         select GPIOLIB_IRQCHIP
 367         help
 368           Say yes here to support the Mediatek MT7621 SoC GPIO device
 369
 370 config GPIO_MVEBU
 371         def_bool y
 372         depends on PLAT_ORION || ARCH_MVEBU
 373         depends on OF_GPIO
 374         select GENERIC_IRQ_CHIP
 375         select REGMAP_MMIO
 376
 377 config GPIO_MXC
 378         def_bool y
 379         depends on ARCH_MXC
 380         select GPIO_GENERIC
 381         select GENERIC_IRQ_CHIP
 382
 383 config GPIO_MXS
 384         def_bool y
 385         depends on ARCH_MXS
 386         select GPIO_GENERIC
 387         select GENERIC_IRQ_CHIP
 388
 389 config GPIO_OCTEON
 390         tristate "Cavium OCTEON GPIO"
 391         depends on GPIOLIB && CAVIUM_OCTEON_SOC
 392         default y
 393         help
 394           Say yes here to support the on-chip GPIO lines on the OCTEON
 395           family of SOCs.
 396
 397 config GPIO_OMAP
 398         tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 399         default y if ARCH_OMAP
 400         depends on ARM
 401         select GENERIC_IRQ_CHIP
 402         select GPIOLIB_IRQCHIP
 403         help
 404           Say yes here to enable GPIO support for TI OMAP SoCs.
 405
 406 config GPIO_PL061
 407         bool "PrimeCell PL061 GPIO support"
 408         depends on ARM_AMBA
 409         select IRQ_DOMAIN
 410         select GPIOLIB_IRQCHIP
 411         help
 412           Say yes here to support the PrimeCell PL061 GPIO device
 413
 414 config GPIO_PMIC_EIC_SPRD
 415         tristate "Spreadtrum PMIC EIC support"
 416         depends on MFD_SC27XX_PMIC || COMPILE_TEST
 417         depends on OF_GPIO
 418         select GPIOLIB_IRQCHIP
 419         help
 420           Say yes here to support Spreadtrum PMIC EIC device.
 421
 422 config GPIO_PXA
 423         bool "PXA GPIO support"
 424         depends on ARCH_PXA || ARCH_MMP
 425         help
 426           Say yes here to support the PXA GPIO device
 427
 428 config GPIO_RCAR
 429         tristate "Renesas R-Car GPIO"
 430         depends on ARCH_RENESAS || COMPILE_TEST
 431         select GPIOLIB_IRQCHIP
 432         help
 433           Say yes here to support GPIO on Renesas R-Car SoCs.
 434
 435 config GPIO_REG
 436         bool
 437         help
 438           A 32-bit single register GPIO fixed in/out implementation.  This
 439           can be used to represent any register as a set of GPIO signals.
 440
 441 config GPIO_SAMA5D2_PIOBU
 442         tristate "SAMA5D2 PIOBU GPIO support"
 443         depends on MFD_SYSCON
 444         depends on OF_GPIO
 445         select GPIO_SYSCON
 446         help
 447           Say yes here to use the PIOBU pins as GPIOs.
 448
 449           PIOBU pins on the SAMA5D2 can be used as GPIOs.
 450           The difference from regular GPIOs is that they
 451           maintain their value during backup/self-refresh.
 452
 453 config GPIO_SIOX
 454         tristate "SIOX GPIO support"
 455         depends on SIOX
 456         select GPIOLIB_IRQCHIP
 457         help
 458           Say yes here to support SIOX I/O devices. These are units connected
 459           via a SIOX bus and have a number of fixed-direction I/O lines.
 460
 461 config GPIO_SNPS_CREG
 462         bool "Synopsys GPIO via CREG (Control REGisters) driver"
 463         depends on ARC || COMPILE_TEST
 464         depends on OF_GPIO
 465         help
 466           This driver supports GPIOs via CREG on various Synopsys SoCs.
 467           This is a single-register MMIO GPIO driver for complex cases
 468           where only several fields in register belong to GPIO lines and
 469           each GPIO line owns a field with different length and on/off value.
 470
 471 config GPIO_SPEAR_SPICS
 472         bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 473         depends on PLAT_SPEAR
 474         select GENERIC_IRQ_CHIP
 475         help
 476           Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 477
 478 config GPIO_SPRD
 479         tristate "Spreadtrum GPIO support"
 480         depends on ARCH_SPRD || COMPILE_TEST
 481         depends on OF_GPIO
 482         select GPIOLIB_IRQCHIP
 483         help
 484           Say yes here to support Spreadtrum GPIO device.
 485
 486 config GPIO_STA2X11
 487         bool "STA2x11/ConneXt GPIO support"
 488         depends on MFD_STA2X11
 489         select GENERIC_IRQ_CHIP
 490         help
 491           Say yes here to support the STA2x11/ConneXt GPIO device.
 492           The GPIO module has 128 GPIO pins with alternate functions.
 493
 494 config GPIO_STP_XWAY
 495         bool "XWAY STP GPIOs"
 496         depends on SOC_XWAY
 497         help
 498           This enables support for the Serial To Parallel (STP) unit found on
 499           XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 500           that can be up to 24 bit. This peripheral is aimed at driving leds.
 501           Some of the gpios/leds can be auto updated by the soc with dsl and
 502           phy status.
 503
 504 config GPIO_SYSCON
 505         tristate "GPIO based on SYSCON"
 506         depends on MFD_SYSCON && OF
 507         help
 508           Say yes here to support GPIO functionality though SYSCON driver.
 509
 510 config GPIO_TB10X
 511         bool
 512         select GPIO_GENERIC
 513         select GENERIC_IRQ_CHIP
 514         select OF_GPIO
 515
 516 config GPIO_TEGRA
 517         bool "NVIDIA Tegra GPIO support"
 518         default ARCH_TEGRA
 519         depends on ARCH_TEGRA || COMPILE_TEST
 520         depends on OF_GPIO
 521         help
 522           Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 523
 524 config GPIO_TEGRA186
 525         tristate "NVIDIA Tegra186 GPIO support"
 526         default ARCH_TEGRA_186_SOC
 527         depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
 528         depends on OF_GPIO
 529         select GPIOLIB_IRQCHIP
 530         help
 531           Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 532
 533 config GPIO_TS4800
 534         tristate "TS-4800 DIO blocks and compatibles"
 535         depends on OF_GPIO
 536         depends on SOC_IMX51 || COMPILE_TEST
 537         select GPIO_GENERIC
 538         help
 539           This driver support TS-4800 FPGA GPIO controllers.
 540
 541 config GPIO_THUNDERX
 542         tristate "Cavium ThunderX/OCTEON-TX GPIO"
 543         depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 544         depends on PCI_MSI
 545         select IRQ_DOMAIN_HIERARCHY
 546         select IRQ_FASTEOI_HIERARCHY_HANDLERS
 547         help
 548           Say yes here to support the on-chip GPIO lines on the ThunderX
 549           and OCTEON-TX families of SoCs.
 550
 551 config GPIO_UNIPHIER
 552         tristate "UniPhier GPIO support"
 553         depends on ARCH_UNIPHIER || COMPILE_TEST
 554         depends on OF_GPIO
 555         select IRQ_DOMAIN_HIERARCHY
 556         help
 557           Say yes here to support UniPhier GPIOs.
 558
 559 config GPIO_VF610
 560         def_bool y
 561         depends on ARCH_MXC && SOC_VF610
 562         select GPIOLIB_IRQCHIP
 563         help
 564           Say yes here to support Vybrid vf610 GPIOs.
 565
 566 config GPIO_VR41XX
 567         tristate "NEC VR4100 series General-purpose I/O Uint support"
 568         depends on CPU_VR41XX
 569         help
 570           Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 571
 572 config GPIO_VX855
 573         tristate "VIA VX855/VX875 GPIO"
 574         depends on (X86 || COMPILE_TEST) && PCI
 575         select MFD_CORE
 576         select MFD_VX855
 577         help
 578           Support access to the VX855/VX875 GPIO lines through the gpio library.
 579
 580           This driver provides common support for accessing the device,
 581           additional drivers must be enabled in order to use the
 582           functionality of the device.
 583
 584 config GPIO_XGENE
 585         bool "APM X-Gene GPIO controller support"
 586         depends on ARM64 && OF_GPIO
 587         help
 588           This driver is to support the GPIO block within the APM X-Gene SoC
 589           platform's generic flash controller. The GPIO pins are muxed with
 590           the generic flash controller's address and data pins. Say yes
 591           here to enable the GFC GPIO functionality.
 592
 593 config GPIO_XGENE_SB
 594         tristate "APM X-Gene GPIO standby controller support"
 595         depends on ARCH_XGENE && OF_GPIO
 596         select GPIO_GENERIC
 597         select GPIOLIB_IRQCHIP
 598         select IRQ_DOMAIN_HIERARCHY
 599         help
 600           This driver supports the GPIO block within the APM X-Gene
 601           Standby Domain. Say yes here to enable the GPIO functionality.
 602
 603 config GPIO_XILINX
 604         tristate "Xilinx GPIO support"
 605         depends on OF_GPIO
 606         help
 607           Say yes here to support the Xilinx FPGA GPIO device
 608
 609 config GPIO_XLP
 610         tristate "Netlogic XLP GPIO support"
 611         depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 612         select GPIOLIB_IRQCHIP
 613         help
 614           This driver provides support for GPIO interface on Netlogic XLP MIPS64
 615           SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 616           XLP9XX and XLP5XX. The same GPIO controller block is also present in
 617           Cavium's ThunderX2 CN99XX SoCs.
 618
 619           If unsure, say N.
 620
 621 config GPIO_XTENSA
 622         bool "Xtensa GPIO32 support"
 623         depends on XTENSA
 624         depends on HAVE_XTENSA_GPIO32
 625         depends on !SMP
 626         help
 627           Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 628           and EXPSTATE (output) ports
 629
 630 config GPIO_ZEVIO
 631         bool "LSI ZEVIO SoC memory mapped GPIOs"
 632         depends on ARM && OF_GPIO
 633         help
 634           Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 635
 636 config GPIO_ZYNQ
 637         tristate "Xilinx Zynq GPIO support"
 638         depends on ARCH_ZYNQ || ARCH_ZYNQMP
 639         select GPIOLIB_IRQCHIP
 640         help
 641           Say yes here to support Xilinx Zynq GPIO controller.
 642
 643 config GPIO_ZX
 644         bool "ZTE ZX GPIO support"
 645         depends on ARCH_ZX || COMPILE_TEST
 646         select GPIOLIB_IRQCHIP
 647         help
 648           Say yes here to support the GPIO device on ZTE ZX SoCs.
 649
 650 config GPIO_LOONGSON1
 651         tristate "Loongson1 GPIO support"
 652         depends on MACH_LOONGSON32
 653         select GPIO_GENERIC
 654         help
 655           Say Y or M here to support GPIO on Loongson1 SoCs.
 656
 657 config GPIO_AMD_FCH
 658         tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 659         help
 660           This option enables driver for GPIO on AMDs Fusion Controller Hub,
 661           as found on G-series SOCs (eg. GX-412TC)
 662
 663           Note: This driver doesn't registers itself automatically, as it
 664           needs to be provided with platform specific configuration.
 665           (See eg. CONFIG_PCENGINES_APU2.)
 666 endmenu
 667
 668 menu "Port-mapped I/O GPIO drivers"
 669         depends on X86 # Unconditional I/O space access
 670
 671 config GPIO_104_DIO_48E
 672         tristate "ACCES 104-DIO-48E GPIO support"
 673         depends on PC104
 674         select ISA_BUS_API
 675         select GPIOLIB_IRQCHIP
 676         help
 677           Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 678           104-DIO-24E). The base port addresses for the devices may be
 679           configured via the base module parameter. The interrupt line numbers
 680           for the devices may be configured via the irq module parameter.
 681
 682 config GPIO_104_IDIO_16
 683         tristate "ACCES 104-IDIO-16 GPIO support"
 684         depends on PC104
 685         select ISA_BUS_API
 686         select GPIOLIB_IRQCHIP
 687         help
 688           Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 689           104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 690           base port addresses for the devices may be configured via the base
 691           module parameter. The interrupt line numbers for the devices may be
 692           configured via the irq module parameter.
 693
 694 config GPIO_104_IDI_48
 695         tristate "ACCES 104-IDI-48 GPIO support"
 696         depends on PC104
 697         select ISA_BUS_API
 698         select GPIOLIB_IRQCHIP
 699         help
 700           Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 701           104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 702           the devices may be configured via the base module parameter. The
 703           interrupt line numbers for the devices may be configured via the irq
 704           module parameter.
 705
 706 config GPIO_F7188X
 707         tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 708         help
 709           This option enables support for GPIOs found on Fintek Super-I/O
 710           chips F71869, F71869A, F71882FG, F71889F and F81866.
 711
 712           To compile this driver as a module, choose M here: the module will
 713           be called f7188x-gpio.
 714
 715 config GPIO_GPIO_MM
 716         tristate "Diamond Systems GPIO-MM GPIO support"
 717         depends on PC104
 718         select ISA_BUS_API
 719         help
 720           Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 721
 722           The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 723           via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 724           support for these 48 channels of digital I/O.
 725
 726           The base port addresses for the devices may be configured via the base
 727           array module parameter.
 728
 729 config GPIO_IT87
 730         tristate "IT87xx GPIO support"
 731         help
 732           Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 733
 734           This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 735           supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 736           well.
 737
 738           To compile this driver as a module, choose M here: the module will
 739           be called gpio_it87
 740
 741 config GPIO_SCH
 742         tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 743         depends on (X86 || COMPILE_TEST) && PCI
 744         select MFD_CORE
 745         select LPC_SCH
 746         help
 747           Say yes here to support GPIO interface on Intel Poulsbo SCH,
 748           Intel Tunnel Creek processor, Intel Centerton processor or
 749           Intel Quark X1000 SoC.
 750
 751           The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 752           powered by the core power rail and are turned off during sleep
 753           modes (S3 and higher). The remaining four GPIOs are powered by
 754           the Intel SCH suspend power supply. These GPIOs remain
 755           active during S3. The suspend powered GPIOs can be used to wake the
 756           system from the Suspend-to-RAM state.
 757
 758           The Intel Tunnel Creek processor has 5 GPIOs powered by the
 759           core power rail and 9 from suspend power supply.
 760
 761           The Intel Centerton processor has a total of 30 GPIO pins.
 762           Twenty-one are powered by the core power rail and 9 from the
 763           suspend power supply.
 764
 765           The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 766           power well and 6 from the suspend power well.
 767
 768 config GPIO_SCH311X
 769         tristate "SMSC SCH311x SuperI/O GPIO"
 770         help
 771           Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 772           SCH3116 "Super I/O" chipsets.
 773
 774           To compile this driver as a module, choose M here: the module will
 775           be called gpio-sch311x.
 776
 777 config GPIO_TS5500
 778         tristate "TS-5500 DIO blocks and compatibles"
 779         depends on TS5500 || COMPILE_TEST
 780         help
 781           This driver supports Digital I/O exposed by pin blocks found on some
 782           Technologic Systems platforms. It includes, but is not limited to, 3
 783           blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 784           LCD port.
 785
 786 config GPIO_WINBOND
 787         tristate "Winbond Super I/O GPIO support"
 788         select ISA_BUS_API
 789         help
 790           This option enables support for GPIOs found on Winbond Super I/O
 791           chips.
 792           Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 793           supported.
 794
 795           You will need to provide a module parameter "gpios", or a
 796           boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 797           ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 798
 799           To compile this driver as a module, choose M here: the module will
 800           be called gpio-winbond.
 801
 802 config GPIO_WS16C48
 803         tristate "WinSystems WS16C48 GPIO support"
 804         select ISA_BUS_API
 805         select GPIOLIB_IRQCHIP
 806         help
 807           Enables GPIO support for the WinSystems WS16C48. The base port
 808           addresses for the devices may be configured via the base module
 809           parameter. The interrupt line numbers for the devices may be
 810           configured via the irq module parameter.
 811
 812 endmenu
 813
 814 menu "I2C GPIO expanders"
 815         depends on I2C
 816
 817 config GPIO_ADP5588
 818         tristate "ADP5588 I2C GPIO expander"
 819         help
 820           This option enables support for 18 GPIOs found
 821           on Analog Devices ADP5588 GPIO Expanders.
 822
 823 config GPIO_ADP5588_IRQ
 824         bool "Interrupt controller support for ADP5588"
 825         depends on GPIO_ADP5588=y
 826         help
 827           Say yes here to enable the adp5588 to be used as an interrupt
 828           controller. It requires the driver to be built in the kernel.
 829
 830 config GPIO_ADNP
 831         tristate "Avionic Design N-bit GPIO expander"
 832         depends on OF_GPIO
 833         select GPIOLIB_IRQCHIP
 834         help
 835           This option enables support for N GPIOs found on Avionic Design
 836           I2C GPIO expanders. The register space will be extended by powers
 837           of two, so the controller will need to accommodate for that. For
 838           example: if a controller provides 48 pins, 6 registers will be
 839           enough to represent all pins, but the driver will assume a
 840           register layout for 64 pins (8 registers).
 841
 842 config GPIO_GW_PLD
 843         tristate "Gateworks PLD GPIO Expander"
 844         depends on OF_GPIO
 845         help
 846           Say yes here to provide access to the Gateworks I2C PLD GPIO
 847           Expander. This is used at least on the Cambria GW2358-4.
 848
 849 config GPIO_MAX7300
 850         tristate "Maxim MAX7300 GPIO expander"
 851         select GPIO_MAX730X
 852         help
 853           GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 854
 855 config GPIO_MAX732X
 856         tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 857         help
 858           Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 859           Port Expanders. Each IO port on these chips has a fixed role of
 860           Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 861           Input and Output (designed by 'P'). The combinations are listed
 862           below:
 863
 864           8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 865                         max7322 (4I4O), max7323 (4P4O)
 866
 867           16 bits:      max7324 (8I8O), max7325 (8P8O),
 868                         max7326 (4I12O), max7327 (4P12O)
 869
 870           Board setup code must specify the model to use, and the start
 871           number for these GPIOs.
 872
 873 config GPIO_MAX732X_IRQ
 874         bool "Interrupt controller support for MAX732x"
 875         depends on GPIO_MAX732X=y
 876         select GPIOLIB_IRQCHIP
 877         help
 878           Say yes here to enable the max732x to be used as an interrupt
 879           controller. It requires the driver to be built in the kernel.
 880
 881 config GPIO_MC9S08DZ60
 882         bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 883         depends on I2C=y && MACH_MX35_3DS
 884         help
 885           Select this to enable the MC9S08DZ60 GPIO driver
 886
 887 config GPIO_PCA953X
 888         tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 889         select REGMAP_I2C
 890         help
 891           Say yes here to provide access to several register-oriented
 892           SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 893           models include:
 894
 895           4 bits:       pca9536, pca9537
 896
 897           8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 898                         pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 899
 900           16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 901                         tca6416
 902
 903           24 bits:      tca6424
 904
 905           40 bits:      pca9505, pca9698
 906
 907 config GPIO_PCA953X_IRQ
 908         bool "Interrupt controller support for PCA953x"
 909         depends on GPIO_PCA953X=y
 910         select GPIOLIB_IRQCHIP
 911         help
 912           Say yes here to enable the pca953x to be used as an interrupt
 913           controller. It requires the driver to be built in the kernel.
 914
 915 config GPIO_PCF857X
 916         tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 917         select GPIOLIB_IRQCHIP
 918         select IRQ_DOMAIN
 919         help
 920           Say yes here to provide access to most "quasi-bidirectional" I2C
 921           GPIO expanders used for additional digital outputs or inputs.
 922           Most of these parts are from NXP, though TI is a second source for
 923           some of them.  Compatible models include:
 924
 925           8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 926                     pca9670, pca9672, pca9674, pca9674a,
 927                     max7328, max7329
 928
 929           16 bits:  pcf8575, pcf8575c, pca8575,
 930                     pca9671, pca9673, pca9675
 931
 932           Your board setup code will need to declare the expanders in
 933           use, and assign numbers to the GPIOs they expose.  Those GPIOs
 934           can then be used from drivers and other kernel code, just like
 935           other GPIOs, but only accessible from task contexts.
 936
 937           This driver provides an in-kernel interface to those GPIOs using
 938           platform-neutral GPIO calls.
 939
 940 config GPIO_TPIC2810
 941         tristate "TPIC2810 8-Bit I2C GPO expander"
 942         help
 943           Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 944
 945           To compile this driver as a module, choose M here: the module will
 946           be called gpio-tpic2810.
 947
 948 config GPIO_TS4900
 949         tristate "Technologic Systems FPGA I2C GPIO"
 950         depends on SOC_IMX6 || COMPILE_TEST
 951         select REGMAP_I2C
 952         help
 953           Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 954           Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 955
 956 endmenu
 957
 958 menu "MFD GPIO expanders"
 959
 960 config GPIO_ADP5520
 961         tristate "GPIO Support for ADP5520 PMIC"
 962         depends on PMIC_ADP5520
 963         help
 964           This option enables support for on-chip GPIO found
 965           on Analog Devices ADP5520 PMICs.
 966
 967 config GPIO_ALTERA_A10SR
 968         tristate "Altera Arria10 System Resource GPIO"
 969         depends on MFD_ALTERA_A10SR
 970         help
 971           Driver for Arria10 Development Kit GPIO expansion which
 972           includes reads of pushbuttons and DIP switches as well
 973           as writes to LEDs.
 974
 975 config GPIO_ARIZONA
 976         tristate "Wolfson Microelectronics Arizona class devices"
 977         depends on MFD_ARIZONA
 978         help
 979           Support for GPIOs on Wolfson Arizona class devices.
 980
 981 config GPIO_BD9571MWV
 982         tristate "ROHM BD9571 GPIO support"
 983         depends on MFD_BD9571MWV
 984         help
 985           Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
 986           available on the ROHM PMIC in total, both of which can also
 987           generate interrupts.
 988
 989           This driver can also be built as a module. If so, the module
 990           will be called gpio-bd9571mwv.
 991
 992 config GPIO_CRYSTAL_COVE
 993         tristate "GPIO support for Crystal Cove PMIC"
 994         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
 995         select GPIOLIB_IRQCHIP
 996         help
 997           Support for GPIO pins on Crystal Cove PMIC.
 998
 999           Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1000           inside.
1001
1002           This driver can also be built as a module. If so, the module will be
1003           called gpio-crystalcove.
1004
1005 config GPIO_CS5535
1006         tristate "AMD CS5535/CS5536 GPIO support"
1007         depends on X86 || MIPS || COMPILE_TEST
1008         depends on MFD_CS5535
1009         help
1010           The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1011           can be used for quite a number of things.  The CS5535/6 is found on
1012           AMD Geode and Lemote Yeeloong devices.
1013
1014           If unsure, say N.
1015
1016 config GPIO_DA9052
1017         tristate "Dialog DA9052 GPIO"
1018         depends on PMIC_DA9052
1019         help
1020           Say yes here to enable the GPIO driver for the DA9052 chip.
1021
1022 config GPIO_DA9055
1023         tristate "Dialog Semiconductor DA9055 GPIO"
1024         depends on MFD_DA9055
1025         help
1026           Say yes here to enable the GPIO driver for the DA9055 chip.
1027
1028           The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1029           be controller by this driver.
1030
1031           If driver is built as a module it will be called gpio-da9055.
1032
1033 config GPIO_DLN2
1034         tristate "Diolan DLN2 GPIO support"
1035         depends on MFD_DLN2
1036         select GPIOLIB_IRQCHIP
1037
1038         help
1039           Select this option to enable GPIO driver for the Diolan DLN2
1040           board.
1041
1042           This driver can also be built as a module. If so, the module
1043           will be called gpio-dln2.
1044
1045 config HTC_EGPIO
1046         bool "HTC EGPIO support"
1047         depends on GPIOLIB && ARM
1048         help
1049           This driver supports the CPLD egpio chip present on
1050           several HTC phones.  It provides basic support for input
1051           pins, output pins, and irqs.
1052
1053 config GPIO_JANZ_TTL
1054         tristate "Janz VMOD-TTL Digital IO Module"
1055         depends on MFD_JANZ_CMODIO
1056         help
1057           This enables support for the Janz VMOD-TTL Digital IO module.
1058           This driver provides support for driving the pins in output
1059           mode only. Input mode is not supported.
1060
1061 config GPIO_KEMPLD
1062         tristate "Kontron ETX / COMexpress GPIO"
1063         depends on MFD_KEMPLD
1064         help
1065           This enables support for the PLD GPIO interface on some Kontron ETX
1066           and COMexpress (ETXexpress) modules.
1067
1068           This driver can also be built as a module. If so, the module will be
1069           called gpio-kempld.
1070
1071 config GPIO_LP3943
1072         tristate "TI/National Semiconductor LP3943 GPIO expander"
1073         depends on MFD_LP3943
1074         help
1075           GPIO driver for LP3943 MFD.
1076           LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1077           Open drain outputs are required for this usage.
1078
1079 config GPIO_LP873X
1080         tristate "TI LP873X GPO"
1081         depends on MFD_TI_LP873X
1082         help
1083           This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1084           on LP873X PMICs.
1085
1086           This driver can also be built as a module. If so, the module will be
1087           called gpio-lp873x.
1088
1089 config GPIO_LP87565
1090         tristate "TI LP87565 GPIO"
1091         depends on MFD_TI_LP87565
1092         help
1093           This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1094           on LP87565 PMICs.
1095
1096           This driver can also be built as a module. If so, the module will be
1097           called gpio-lp87565.
1098
1099 config GPIO_MADERA
1100         tristate "Cirrus Logic Madera class codecs"
1101         depends on PINCTRL_MADERA
1102         help
1103           Support for GPIOs on Cirrus Logic Madera class codecs.
1104
1105 config GPIO_MAX77620
1106         tristate "GPIO support for PMIC MAX77620 and MAX20024"
1107         depends on MFD_MAX77620
1108         help
1109           GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1110           MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1111           driver also provides interrupt support for each of the gpios.
1112           Say yes here to enable the max77620 to be used as gpio controller.
1113
1114 config GPIO_MAX77650
1115         tristate "Maxim MAX77650/77651 GPIO support"
1116         depends on MFD_MAX77650
1117         help
1118           GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1119           These chips have a single pin that can be configured as GPIO.
1120
1121 config GPIO_MSIC
1122         bool "Intel MSIC mixed signal gpio support"
1123         depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1124         help
1125           Enable support for GPIO on intel MSIC controllers found in
1126           intel MID devices
1127
1128 config GPIO_PALMAS
1129         bool "TI PALMAS series PMICs GPIO"
1130         depends on MFD_PALMAS
1131         help
1132           Select this option to enable GPIO driver for the TI PALMAS
1133           series chip family.
1134
1135 config GPIO_RC5T583
1136         bool "RICOH RC5T583 GPIO"
1137         depends on MFD_RC5T583
1138         help
1139           Select this option to enable GPIO driver for the Ricoh RC5T583
1140           chip family.
1141           This driver provides the support for driving/reading the gpio pins
1142           of RC5T583 device through standard gpio library.
1143
1144 config GPIO_STMPE
1145         bool "STMPE GPIOs"
1146         depends on MFD_STMPE
1147         depends on OF_GPIO
1148         select GPIOLIB_IRQCHIP
1149         help
1150           This enables support for the GPIOs found on the STMPE I/O
1151           Expanders.
1152
1153 config GPIO_TC3589X
1154         bool "TC3589X GPIOs"
1155         depends on MFD_TC3589X
1156         depends on OF_GPIO
1157         select GPIOLIB_IRQCHIP
1158         help
1159           This enables support for the GPIOs found on the TC3589X
1160           I/O Expander.
1161
1162 config GPIO_TIMBERDALE
1163         bool "Support for timberdale GPIO IP"
1164         depends on MFD_TIMBERDALE
1165         ---help---
1166         Add support for the GPIO IP in the timberdale FPGA.
1167
1168 config GPIO_TPS65086
1169         tristate "TI TPS65086 GPO"
1170         depends on MFD_TPS65086
1171         help
1172           This driver supports the GPO on TI TPS65086x PMICs.
1173
1174 config GPIO_TPS65218
1175         tristate "TPS65218 GPIO"
1176         depends on MFD_TPS65218
1177         help
1178           Select this option to enable GPIO driver for the TPS65218
1179           chip family.
1180
1181 config GPIO_TPS6586X
1182         bool "TPS6586X GPIO"
1183         depends on MFD_TPS6586X
1184         help
1185           Select this option to enable GPIO driver for the TPS6586X
1186           chip family.
1187
1188 config GPIO_TPS65910
1189         bool "TPS65910 GPIO"
1190         depends on MFD_TPS65910
1191         help
1192           Select this option to enable GPIO driver for the TPS65910
1193           chip family.
1194
1195 config GPIO_TPS65912
1196         tristate "TI TPS65912 GPIO"
1197         depends on MFD_TPS65912
1198         help
1199           This driver supports TPS65912 gpio chip
1200
1201 config GPIO_TPS68470
1202         bool "TPS68470 GPIO"
1203         depends on MFD_TPS68470
1204         help
1205           Select this option to enable GPIO driver for the TPS68470
1206           chip family.
1207           There are 7 GPIOs and few sensor related GPIOs supported
1208           by the TPS68470. While the 7 GPIOs can be configured as
1209           input or output as appropriate, the sensor related GPIOs
1210           are "output only" GPIOs.
1211
1212           This driver config is bool, as the GPIO functionality
1213           of the TPS68470 must be available before dependent
1214           drivers are loaded.
1215
1216 config GPIO_TQMX86
1217         tristate "TQ-Systems QTMX86 GPIO"
1218         depends on MFD_TQMX86 || COMPILE_TEST
1219         select GPIOLIB_IRQCHIP
1220         help
1221           This driver supports GPIO on the TQMX86 IO controller.
1222
1223 config GPIO_TWL4030
1224         tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1225         depends on TWL4030_CORE
1226         help
1227           Say yes here to access the GPIO signals of various multi-function
1228           power management chips from Texas Instruments.
1229
1230 config GPIO_TWL6040
1231         tristate "TWL6040 GPO"
1232         depends on TWL6040_CORE
1233         help
1234           Say yes here to access the GPO signals of twl6040
1235           audio chip from Texas Instruments.
1236
1237 config GPIO_UCB1400
1238         tristate "Philips UCB1400 GPIO"
1239         depends on UCB1400_CORE
1240         help
1241           This enables support for the Philips UCB1400 GPIO pins.
1242           The UCB1400 is an AC97 audio codec.
1243
1244 config GPIO_WHISKEY_COVE
1245         tristate "GPIO support for Whiskey Cove PMIC"
1246         depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1247         select GPIOLIB_IRQCHIP
1248         help
1249           Support for GPIO pins on Whiskey Cove PMIC.
1250
1251           Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1252           inside.
1253
1254           This driver can also be built as a module. If so, the module will be
1255           called gpio-wcove.
1256
1257 config GPIO_WM831X
1258         tristate "WM831x GPIOs"
1259         depends on MFD_WM831X
1260         help
1261           Say yes here to access the GPIO signals of WM831x power management
1262           chips from Wolfson Microelectronics.
1263
1264 config GPIO_WM8350
1265         tristate "WM8350 GPIOs"
1266         depends on MFD_WM8350
1267         help
1268           Say yes here to access the GPIO signals of WM8350 power management
1269           chips from Wolfson Microelectronics.
1270
1271 config GPIO_WM8994
1272         tristate "WM8994 GPIOs"
1273         depends on MFD_WM8994
1274         help
1275           Say yes here to access the GPIO signals of WM8994 audio hub
1276           CODECs from Wolfson Microelectronics.
1277
1278 endmenu
1279
1280 menu "PCI GPIO expanders"
1281         depends on PCI
1282
1283 config GPIO_AMD8111
1284         tristate "AMD 8111 GPIO driver"
1285         depends on X86 || COMPILE_TEST
1286         help
1287           The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1288
1289           Note, that usually system firmware/ACPI handles GPIO pins on their
1290           own and users might easily break their systems with uncarefull usage
1291           of this driver!
1292
1293           If unsure, say N
1294
1295 config GPIO_BT8XX
1296         tristate "BT8XX GPIO abuser"
1297         depends on VIDEO_BT848=n
1298         help
1299           The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1300           as a cheap PCI GPIO card.
1301
1302           This chip can be found on Miro, Hauppauge and STB TV-cards.
1303
1304           The card needs to be physically altered for using it as a
1305           GPIO card. For more information on how to build a GPIO card
1306           from a BT8xx TV card, see the documentation file at
1307           Documentation/bt8xxgpio.txt
1308
1309           If unsure, say N.
1310
1311 config GPIO_INTEL_MID
1312         bool "Intel MID GPIO support"
1313         depends on X86_INTEL_MID
1314         select GPIOLIB_IRQCHIP
1315         help
1316           Say Y here to support Intel MID GPIO.
1317
1318 config GPIO_MERRIFIELD
1319         tristate "Intel Merrifield GPIO support"
1320         depends on X86_INTEL_MID
1321         select GPIOLIB_IRQCHIP
1322         help
1323           Say Y here to support Intel Merrifield GPIO.
1324
1325 config GPIO_MLXBF
1326         tristate "Mellanox BlueField SoC GPIO"
1327         depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1328         select GPIO_GENERIC
1329         help
1330           Say Y here if you want GPIO support on Mellanox BlueField SoC.
1331
1332 config GPIO_ML_IOH
1333         tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1334         depends on X86 || COMPILE_TEST
1335         select GENERIC_IRQ_CHIP
1336         help
1337           ML7213 is companion chip for Intel Atom E6xx series.
1338           This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1339           Hub) which is for IVI(In-Vehicle Infotainment) use.
1340           This driver can access the IOH's GPIO device.
1341
1342 config GPIO_PCH
1343         tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1344         depends on X86_32 || MIPS || COMPILE_TEST
1345         select GENERIC_IRQ_CHIP
1346         help
1347           This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1348           which is an IOH(Input/Output Hub) for x86 embedded processor.
1349           This driver can access PCH GPIO device.
1350
1351           This driver also can be used for LAPIS Semiconductor IOH(Input/
1352           Output Hub), ML7223 and ML7831.
1353           ML7223 IOH is for MP(Media Phone) use.
1354           ML7831 IOH is for general purpose use.
1355           ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1356           ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1357
1358 config GPIO_PCI_IDIO_16
1359         tristate "ACCES PCI-IDIO-16 GPIO support"
1360         select GPIOLIB_IRQCHIP
1361         help
1362           Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1363           generated when any of the inputs change state (low to high or high to
1364           low). Input filter control is not supported by this driver, and the
1365           input filters are deactivated by this driver.
1366
1367 config GPIO_PCIE_IDIO_24
1368         tristate "ACCES PCIe-IDIO-24 GPIO support"
1369         select GPIOLIB_IRQCHIP
1370         help
1371           Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1372           PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1373           when any of the inputs change state (low to high or high to low).
1374           Input filter control is not supported by this driver, and the input
1375           filters are deactivated by this driver.
1376
1377 config GPIO_RDC321X
1378         tristate "RDC R-321x GPIO support"
1379         select MFD_CORE
1380         select MFD_RDC321X
1381         help
1382           Support for the RDC R321x SoC GPIOs over southbridge
1383           PCI configuration space.
1384
1385 config GPIO_SODAVILLE
1386         bool "Intel Sodaville GPIO support"
1387         depends on X86 && OF
1388         select GPIO_GENERIC
1389         select GENERIC_IRQ_CHIP
1390         help
1391           Say Y here to support Intel Sodaville GPIO.
1392
1393 endmenu
1394
1395 menu "SPI GPIO expanders"
1396         depends on SPI_MASTER
1397
1398 config GPIO_74X164
1399         tristate "74x164 serial-in/parallel-out 8-bits shift register"
1400         depends on OF_GPIO
1401         help
1402           Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1403           shift registers. This driver can be used to provide access
1404           to more gpio outputs.
1405
1406 config GPIO_MAX3191X
1407         tristate "Maxim MAX3191x industrial serializer"
1408         select CRC8
1409         help
1410           GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1411           MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1412           chip to make 8 digital 24V inputs available via SPI.  Supports
1413           CRC checksums to guard against electromagnetic interference,
1414           as well as undervoltage and overtemperature detection.
1415
1416 config GPIO_MAX7301
1417         tristate "Maxim MAX7301 GPIO expander"
1418         select GPIO_MAX730X
1419         help
1420           GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1421
1422 config GPIO_MC33880
1423         tristate "Freescale MC33880 high-side/low-side switch"
1424         help
1425           SPI driver for Freescale MC33880 high-side/low-side switch.
1426           This provides GPIO interface supporting inputs and outputs.
1427
1428 config GPIO_PISOSR
1429         tristate "Generic parallel-in/serial-out shift register"
1430         help
1431           GPIO driver for SPI compatible parallel-in/serial-out shift
1432           registers. These are input only devices.
1433
1434 config GPIO_XRA1403
1435         tristate "EXAR XRA1403 16-bit GPIO expander"
1436         select REGMAP_SPI
1437         help
1438           GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1439
1440 endmenu
1441
1442 menu "USB GPIO expanders"
1443         depends on USB
1444
1445 config GPIO_VIPERBOARD
1446         tristate "Viperboard GPIO a & b support"
1447         depends on MFD_VIPERBOARD
1448         help
1449           Say yes here to access the GPIO signals of Nano River
1450           Technologies Viperboard. There are two GPIO chips on the
1451           board: gpioa and gpiob.
1452           See viperboard API specification and Nano
1453           River Tech's viperboard.h for detailed meaning
1454           of the module parameters.
1455
1456 endmenu
1457
1458 config GPIO_MOCKUP
1459         tristate "GPIO Testing Driver"
1460         depends on GPIOLIB
1461         select IRQ_SIM
1462         help
1463           This enables GPIO Testing driver, which provides a way to test GPIO
1464           subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1465           must be selected for this test.
1466           User could use it through the script in
1467           tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1468           it.
1469
1470 endif