1# SPDX-License-Identifier: GPL-2.0-only
   2#
   3# GPIO infrastructure and drivers
   4#
   5
   6config 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
  14menuconfig 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
  23if GPIOLIB
  24
  25config 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
  37config OF_GPIO
  38	def_bool y
  39	depends on OF
  40	depends on HAS_IOMEM
  41
  42config GPIO_ACPI
  43	def_bool y
  44	depends on ACPI
  45
  46config GPIOLIB_IRQCHIP
  47	select IRQ_DOMAIN
  48	bool
  49
  50config 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
  61config 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
  72config GPIO_GENERIC
  73	depends on HAS_IOMEM # Only for IOMEM drivers
  74	tristate
  75
  76config GPIO_REGMAP
  77	depends on REGMAP
  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
  83config GPIO_MAX730X
  84	tristate
  85
  86menu "Memory mapped GPIO drivers"
  87	depends on HAS_IOMEM
  88
  89config 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
 103config 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
 112config 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
 120config 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
 127config GPIO_ASPEED_SGPIO
 128	bool "Aspeed SGPIO support"
 129	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 130	select GPIO_GENERIC
 131	select GPIOLIB_IRQCHIP
 132	help
 133	  Say Y here to support Aspeed AST2500 SGPIO functionality.
 134
 135config GPIO_ATH79
 136	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 137	default y if ATH79
 138	depends on ATH79 || COMPILE_TEST
 139	select GPIO_GENERIC
 140	select GPIOLIB_IRQCHIP
 141	help
 142	  Select this option to enable GPIO driver for
 143	  Atheros AR71XX/AR724X/AR913X SoC devices.
 144
 145config GPIO_RASPBERRYPI_EXP
 146	tristate "Raspberry Pi 3 GPIO Expander"
 147	default RASPBERRYPI_FIRMWARE
 148	depends on OF_GPIO
 149	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 150	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 151	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 152	help
 153	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 154	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
 155
 156config GPIO_BCM_KONA
 157	bool "Broadcom Kona GPIO"
 158	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 159	help
 160	  Turn on GPIO support for Broadcom "Kona" chips.
 161
 162config GPIO_BCM_XGS_IPROC
 163	tristate "BRCM XGS iProc GPIO support"
 164	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
 165	select GPIO_GENERIC
 166	select GPIOLIB_IRQCHIP
 167	default ARCH_BCM_IPROC
 168	help
 169	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
 170
 171config GPIO_BRCMSTB
 172	tristate "BRCMSTB GPIO support"
 173	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 174	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 175	select GPIO_GENERIC
 176	select IRQ_DOMAIN
 177	help
 178	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 179
 180config GPIO_CADENCE
 181	tristate "Cadence GPIO support"
 182	depends on OF_GPIO
 183	select GPIO_GENERIC
 184	select GPIOLIB_IRQCHIP
 185	help
 186	  Say yes here to enable support for Cadence GPIO controller.
 187
 188config GPIO_CLPS711X
 189	tristate "CLPS711X GPIO support"
 190	depends on ARCH_CLPS711X || COMPILE_TEST
 191	select GPIO_GENERIC
 192	help
 193	  Say yes here to support GPIO on CLPS711X SoCs.
 194
 195config GPIO_DAVINCI
 196	bool "TI Davinci/Keystone GPIO support"
 197	default y if ARCH_DAVINCI
 198	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
 199	help
 200	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 201
 202config GPIO_DWAPB
 203	tristate "Synopsys DesignWare APB GPIO driver"
 204	select GPIO_GENERIC
 205	select GENERIC_IRQ_CHIP
 206	help
 207	  Say Y or M here to build support for the Synopsys DesignWare APB
 208	  GPIO block.
 209
 210config GPIO_EIC_SPRD
 211	tristate "Spreadtrum EIC support"
 212	depends on ARCH_SPRD || COMPILE_TEST
 213	depends on OF_GPIO
 214	select GPIOLIB_IRQCHIP
 215	help
 216	  Say yes here to support Spreadtrum EIC device.
 217
 218config GPIO_EM
 219	tristate "Emma Mobile GPIO"
 220	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 221	help
 222	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 223
 224config GPIO_EP93XX
 225	def_bool y
 226	depends on ARCH_EP93XX
 227	select GPIO_GENERIC
 228	select GPIOLIB_IRQCHIP
 229
 230config GPIO_EXAR
 231	tristate "Support for GPIO pins on XR17V352/354/358"
 232	depends on SERIAL_8250_EXAR
 233	help
 234	  Selecting this option will enable handling of GPIO pins present
 235	  on Exar XR17V352/354/358 chips.
 236
 237config GPIO_GE_FPGA
 238	bool "GE FPGA based GPIO"
 239	depends on GE_FPGA
 240	select GPIO_GENERIC
 241	help
 242	  Support for common GPIO functionality provided on some GE Single Board
 243	  Computers.
 244
 245	  This driver provides basic support (configure as input or output, read
 246	  and write pin state) for GPIO implemented in a number of GE single
 247	  board computers.
 248
 249config GPIO_FTGPIO010
 250	bool "Faraday FTGPIO010 GPIO"
 251	depends on OF_GPIO
 252	select GPIO_GENERIC
 253	select GPIOLIB_IRQCHIP
 254	default (ARCH_GEMINI || ARCH_MOXART)
 255	help
 256	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 257	  Cortina systems Gemini platforms, Moxa ART and others.
 258
 259config GPIO_GENERIC_PLATFORM
 260	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 261	select GPIO_GENERIC
 262	help
 263	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
 264
 265config GPIO_GRGPIO
 266	tristate "Aeroflex Gaisler GRGPIO support"
 267	depends on OF_GPIO
 268	select GPIO_GENERIC
 269	select IRQ_DOMAIN
 270	help
 271	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 272	  VHDL IP core library.
 273
 274config GPIO_HLWD
 275	tristate "Nintendo Wii (Hollywood) GPIO"
 276	depends on OF_GPIO
 277	select GPIO_GENERIC
 278	select GPIOLIB_IRQCHIP
 279	help
 280	  Select this to support the GPIO controller of the Nintendo Wii.
 281
 282	  If unsure, say N.
 283
 284config GPIO_ICH
 285	tristate "Intel ICH GPIO"
 286	depends on PCI && X86
 287	select MFD_CORE
 288	select LPC_ICH
 289	help
 290	  Say yes here to support the GPIO functionality of a number of Intel
 291	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 292	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 293	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 294
 295	  If unsure, say N.
 296
 297config GPIO_IOP
 298	tristate "Intel IOP GPIO"
 299	depends on ARCH_IOP32X || COMPILE_TEST
 300	select GPIO_GENERIC
 301	help
 302	  Say yes here to support the GPIO functionality of a number of Intel
 303	  IOP32X or IOP33X.
 304
 305	  If unsure, say N.
 306
 307config GPIO_IXP4XX
 308	bool "Intel IXP4xx GPIO"
 309	depends on ARM # For <asm/mach-types.h>
 310	depends on ARCH_IXP4XX
 311	select GPIO_GENERIC
 312	select GPIOLIB_IRQCHIP
 313	select IRQ_DOMAIN_HIERARCHY
 314	help
 315	  Say yes here to support the GPIO functionality of a number of Intel
 316	  IXP4xx series of chips.
 317
 318	  If unsure, say N.
 319config GPIO_LOGICVC
 320	tristate "Xylon LogiCVC GPIO support"
 321	depends on MFD_SYSCON && OF
 322	help
 323	  Say yes here to support GPIO functionality of the Xylon LogiCVC
 324	  programmable logic block.
 325
 326config GPIO_LOONGSON
 327	bool "Loongson-2/3 GPIO support"
 328	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
 329	help
 330	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
 331
 332config GPIO_LPC18XX
 333	tristate "NXP LPC18XX/43XX GPIO support"
 334	default y if ARCH_LPC18XX
 335	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 336	select IRQ_DOMAIN_HIERARCHY
 337	help
 338	  Select this option to enable GPIO driver for
 339	  NXP LPC18XX/43XX devices.
 340
 341config GPIO_LPC32XX
 342	tristate "NXP LPC32XX GPIO support"
 343	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
 344	help
 345	  Select this option to enable GPIO driver for
 346	  NXP LPC32XX devices.
 347
 
 
 
 
 
 
 
 
 348config GPIO_MB86S7X
 349	tristate "GPIO support for Fujitsu MB86S7x Platforms"
 350	help
 351	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 352
 353config GPIO_MENZ127
 354	tristate "MEN 16Z127 GPIO support"
 355	depends on MCB
 356	select GPIO_GENERIC
 357	help
 358	  Say yes here to support the MEN 16Z127 GPIO Controller
 359
 360config GPIO_MM_LANTIQ
 361	bool "Lantiq Memory mapped GPIOs"
 362	depends on LANTIQ && SOC_XWAY
 363	help
 364	  This enables support for memory mapped GPIOs on the External Bus Unit
 365	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
 366	  created by attaching a 16bit latch to the bus.
 367
 368config GPIO_MPC5200
 369	def_bool y
 370	depends on PPC_MPC52xx
 371
 372config GPIO_MPC8XXX
 373	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 374	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 375		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 376		   COMPILE_TEST
 377	select GPIO_GENERIC
 378	select IRQ_DOMAIN
 379	help
 380	  Say Y here if you're going to use hardware that connects to the
 381	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 382
 383config GPIO_MT7621
 384	bool "Mediatek MT7621 GPIO Support"
 385	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 386	depends on OF_GPIO
 387	select GPIO_GENERIC
 388	select GPIOLIB_IRQCHIP
 389	help
 390	  Say yes here to support the Mediatek MT7621 SoC GPIO device
 391
 392config GPIO_MVEBU
 393	def_bool y
 394	depends on PLAT_ORION || ARCH_MVEBU
 395	depends on OF_GPIO
 396	select GENERIC_IRQ_CHIP
 397	select REGMAP_MMIO
 398
 399config GPIO_MXC
 400	def_bool y
 401	depends on ARCH_MXC || COMPILE_TEST
 402	select GPIO_GENERIC
 403	select GENERIC_IRQ_CHIP
 404
 405config GPIO_MXS
 406	def_bool y
 407	depends on ARCH_MXS || COMPILE_TEST
 408	select GPIO_GENERIC
 409	select GENERIC_IRQ_CHIP
 410
 411config GPIO_OCTEON
 412	tristate "Cavium OCTEON GPIO"
 413	depends on CAVIUM_OCTEON_SOC
 414	default y
 415	help
 416	  Say yes here to support the on-chip GPIO lines on the OCTEON
 417	  family of SOCs.
 418
 419config GPIO_OMAP
 420	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 421	default y if ARCH_OMAP
 422	depends on ARM
 423	select GENERIC_IRQ_CHIP
 424	select GPIOLIB_IRQCHIP
 425	help
 426	  Say yes here to enable GPIO support for TI OMAP SoCs.
 427
 428config GPIO_PL061
 429	tristate "PrimeCell PL061 GPIO support"
 430	depends on ARM_AMBA
 431	select IRQ_DOMAIN
 432	select GPIOLIB_IRQCHIP
 433	help
 434	  Say yes here to support the PrimeCell PL061 GPIO device
 435
 436config GPIO_PMIC_EIC_SPRD
 437	tristate "Spreadtrum PMIC EIC support"
 438	depends on MFD_SC27XX_PMIC || COMPILE_TEST
 439	depends on OF_GPIO
 440	select GPIOLIB_IRQCHIP
 441	help
 442	  Say yes here to support Spreadtrum PMIC EIC device.
 443
 444config GPIO_PXA
 445	bool "PXA GPIO support"
 446	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
 447	help
 448	  Say yes here to support the PXA GPIO device
 449
 450config GPIO_RCAR
 451	tristate "Renesas R-Car GPIO"
 452	depends on ARCH_RENESAS || COMPILE_TEST
 453	select GPIOLIB_IRQCHIP
 454	help
 455	  Say yes here to support GPIO on Renesas R-Car SoCs.
 456
 457config GPIO_RDA
 458	bool "RDA Micro GPIO controller support"
 459	depends on ARCH_RDA || COMPILE_TEST
 460	depends on OF_GPIO
 461	select GPIO_GENERIC
 462	select GPIOLIB_IRQCHIP
 463	help
 464	  Say Y here to support RDA Micro GPIO controller.
 465
 466config GPIO_REG
 467	bool
 468	help
 469	  A 32-bit single register GPIO fixed in/out implementation.  This
 470	  can be used to represent any register as a set of GPIO signals.
 471
 472config GPIO_SAMA5D2_PIOBU
 473	tristate "SAMA5D2 PIOBU GPIO support"
 474	depends on MFD_SYSCON
 475	depends on OF_GPIO
 476	select GPIO_SYSCON
 477	help
 478	  Say yes here to use the PIOBU pins as GPIOs.
 479
 480	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
 481	  The difference from regular GPIOs is that they
 482	  maintain their value during backup/self-refresh.
 483
 484config GPIO_SIFIVE
 485	bool "SiFive GPIO support"
 486	depends on OF_GPIO && IRQ_DOMAIN_HIERARCHY
 487	select GPIO_GENERIC
 488	select GPIOLIB_IRQCHIP
 489	select REGMAP_MMIO
 490	help
 491	  Say yes here to support the GPIO device on SiFive SoCs.
 492
 493config GPIO_SIOX
 494	tristate "SIOX GPIO support"
 495	depends on SIOX
 496	select GPIOLIB_IRQCHIP
 497	help
 498	  Say yes here to support SIOX I/O devices. These are units connected
 499	  via a SIOX bus and have a number of fixed-direction I/O lines.
 500
 501config GPIO_SNPS_CREG
 502	bool "Synopsys GPIO via CREG (Control REGisters) driver"
 503	depends on ARC || COMPILE_TEST
 504	depends on OF_GPIO
 505	help
 506	  This driver supports GPIOs via CREG on various Synopsys SoCs.
 507	  This is a single-register MMIO GPIO driver for complex cases
 508	  where only several fields in register belong to GPIO lines and
 509	  each GPIO line owns a field with different length and on/off value.
 510
 511config GPIO_SPEAR_SPICS
 512	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 513	depends on PLAT_SPEAR
 514	select GENERIC_IRQ_CHIP
 515	help
 516	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 517
 518config GPIO_SPRD
 519	tristate "Spreadtrum GPIO support"
 520	depends on ARCH_SPRD || COMPILE_TEST
 521	depends on OF_GPIO
 522	select GPIOLIB_IRQCHIP
 523	help
 524	  Say yes here to support Spreadtrum GPIO device.
 525
 526config GPIO_STA2X11
 527	bool "STA2x11/ConneXt GPIO support"
 528	depends on MFD_STA2X11
 529	select GENERIC_IRQ_CHIP
 530	help
 531	  Say yes here to support the STA2x11/ConneXt GPIO device.
 532	  The GPIO module has 128 GPIO pins with alternate functions.
 533
 534config GPIO_STP_XWAY
 535	bool "XWAY STP GPIOs"
 536	depends on SOC_XWAY || COMPILE_TEST
 537	depends on OF_GPIO
 538	help
 539	  This enables support for the Serial To Parallel (STP) unit found on
 540	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 541	  that can be up to 24 bit. This peripheral is aimed at driving leds.
 542	  Some of the gpios/leds can be auto updated by the soc with dsl and
 543	  phy status.
 544
 545config GPIO_SYSCON
 546	tristate "GPIO based on SYSCON"
 547	depends on MFD_SYSCON && OF
 548	help
 549	  Say yes here to support GPIO functionality though SYSCON driver.
 550
 551config GPIO_TB10X
 552	bool
 553	select GPIO_GENERIC
 554	select GENERIC_IRQ_CHIP
 555	select OF_GPIO
 556
 557config GPIO_TEGRA
 558	bool "NVIDIA Tegra GPIO support"
 559	default ARCH_TEGRA
 560	depends on ARCH_TEGRA || COMPILE_TEST
 561	depends on OF_GPIO
 562	help
 563	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 564
 565config GPIO_TEGRA186
 566	tristate "NVIDIA Tegra186 GPIO support"
 567	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
 568	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
 569	depends on OF_GPIO
 570	select GPIOLIB_IRQCHIP
 571	select IRQ_DOMAIN_HIERARCHY
 572	help
 573	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 574
 575config GPIO_TS4800
 576	tristate "TS-4800 DIO blocks and compatibles"
 577	depends on OF_GPIO
 578	depends on SOC_IMX51 || COMPILE_TEST
 579	select GPIO_GENERIC
 580	help
 581	  This driver support TS-4800 FPGA GPIO controllers.
 582
 583config GPIO_THUNDERX
 584	tristate "Cavium ThunderX/OCTEON-TX GPIO"
 585	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 586	depends on PCI_MSI
 587	select GPIOLIB_IRQCHIP
 588	select IRQ_DOMAIN_HIERARCHY
 589	select IRQ_FASTEOI_HIERARCHY_HANDLERS
 590	help
 591	  Say yes here to support the on-chip GPIO lines on the ThunderX
 592	  and OCTEON-TX families of SoCs.
 593
 594config GPIO_UNIPHIER
 595	tristate "UniPhier GPIO support"
 596	depends on ARCH_UNIPHIER || COMPILE_TEST
 597	depends on OF_GPIO
 598	select IRQ_DOMAIN_HIERARCHY
 599	help
 600	  Say yes here to support UniPhier GPIOs.
 601
 602config GPIO_VF610
 603	def_bool y
 604	depends on ARCH_MXC && SOC_VF610
 605	select GPIOLIB_IRQCHIP
 606	help
 607	  Say yes here to support Vybrid vf610 GPIOs.
 608
 609config GPIO_VR41XX
 610	tristate "NEC VR4100 series General-purpose I/O Uint support"
 611	depends on CPU_VR41XX
 612	help
 613	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 614
 615config GPIO_VX855
 616	tristate "VIA VX855/VX875 GPIO"
 617	depends on (X86 || COMPILE_TEST) && PCI
 618	select MFD_CORE
 619	select MFD_VX855
 620	help
 621	  Support access to the VX855/VX875 GPIO lines through the gpio library.
 622
 623	  This driver provides common support for accessing the device,
 624	  additional drivers must be enabled in order to use the
 625	  functionality of the device.
 626
 627config GPIO_WCD934X
 628	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver"
 629	depends on MFD_WCD934X && OF_GPIO
 630	help
 631         This driver is to supprot GPIO block found on the Qualcomm Technologies
 632	 Inc WCD9340/WCD9341 Audio Codec.
 633
 634config GPIO_XGENE
 635	bool "APM X-Gene GPIO controller support"
 636	depends on ARM64 && OF_GPIO
 637	help
 638	  This driver is to support the GPIO block within the APM X-Gene SoC
 639	  platform's generic flash controller. The GPIO pins are muxed with
 640	  the generic flash controller's address and data pins. Say yes
 641	  here to enable the GFC GPIO functionality.
 642
 643config GPIO_XGENE_SB
 644	tristate "APM X-Gene GPIO standby controller support"
 645	depends on (ARCH_XGENE || COMPILE_TEST)
 646	select GPIO_GENERIC
 647	select GPIOLIB_IRQCHIP
 648	select IRQ_DOMAIN_HIERARCHY
 649	help
 650	  This driver supports the GPIO block within the APM X-Gene
 651	  Standby Domain. Say yes here to enable the GPIO functionality.
 652
 653config GPIO_XILINX
 654	tristate "Xilinx GPIO support"
 655	help
 656	  Say yes here to support the Xilinx FPGA GPIO device
 657
 658config GPIO_XLP
 659	tristate "Netlogic XLP GPIO support"
 660	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 661	select GPIOLIB_IRQCHIP
 662	help
 663	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
 664	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 665	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
 666	  Cavium's ThunderX2 CN99XX SoCs.
 667
 668	  If unsure, say N.
 669
 670config GPIO_XTENSA
 671	bool "Xtensa GPIO32 support"
 672	depends on XTENSA
 673	depends on HAVE_XTENSA_GPIO32
 674	depends on !SMP
 675	help
 676	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 677	  and EXPSTATE (output) ports
 678
 679config GPIO_ZEVIO
 680	bool "LSI ZEVIO SoC memory mapped GPIOs"
 681	depends on ARM && OF_GPIO
 682	help
 683	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 684
 685config GPIO_ZYNQ
 686	tristate "Xilinx Zynq GPIO support"
 687	depends on ARCH_ZYNQ || ARCH_ZYNQMP
 688	select GPIOLIB_IRQCHIP
 689	help
 690	  Say yes here to support Xilinx Zynq GPIO controller.
 691
 692config GPIO_ZX
 693	bool "ZTE ZX GPIO support"
 694	depends on ARCH_ZX || COMPILE_TEST
 695	select GPIOLIB_IRQCHIP
 696	help
 697	  Say yes here to support the GPIO device on ZTE ZX SoCs.
 698
 699config GPIO_LOONGSON1
 700	tristate "Loongson1 GPIO support"
 701	depends on MACH_LOONGSON32
 702	select GPIO_GENERIC
 703	help
 704	  Say Y or M here to support GPIO on Loongson1 SoCs.
 705
 706config GPIO_AMD_FCH
 707	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 708	help
 709	  This option enables driver for GPIO on AMDs Fusion Controller Hub,
 710	  as found on G-series SOCs (eg. GX-412TC)
 711
 712	  Note: This driver doesn't registers itself automatically, as it
 713	  needs to be provided with platform specific configuration.
 714	  (See eg. CONFIG_PCENGINES_APU2.)
 715endmenu
 716
 717menu "Port-mapped I/O GPIO drivers"
 718	depends on X86 # Unconditional I/O space access
 719
 720config GPIO_104_DIO_48E
 721	tristate "ACCES 104-DIO-48E GPIO support"
 722	depends on PC104
 723	select ISA_BUS_API
 724	select GPIOLIB_IRQCHIP
 725	help
 726	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 727	  104-DIO-24E). The base port addresses for the devices may be
 728	  configured via the base module parameter. The interrupt line numbers
 729	  for the devices may be configured via the irq module parameter.
 730
 731config GPIO_104_IDIO_16
 732	tristate "ACCES 104-IDIO-16 GPIO support"
 733	depends on PC104
 734	select ISA_BUS_API
 735	select GPIOLIB_IRQCHIP
 736	help
 737	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 738	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 739	  base port addresses for the devices may be configured via the base
 740	  module parameter. The interrupt line numbers for the devices may be
 741	  configured via the irq module parameter.
 742
 743config GPIO_104_IDI_48
 744	tristate "ACCES 104-IDI-48 GPIO support"
 745	depends on PC104
 746	select ISA_BUS_API
 747	select GPIOLIB_IRQCHIP
 748	help
 749	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 750	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 751	  the devices may be configured via the base module parameter. The
 752	  interrupt line numbers for the devices may be configured via the irq
 753	  module parameter.
 754
 755config GPIO_F7188X
 756	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 757	help
 758	  This option enables support for GPIOs found on Fintek Super-I/O
 759	  chips F71869, F71869A, F71882FG, F71889F and F81866.
 760
 761	  To compile this driver as a module, choose M here: the module will
 762	  be called f7188x-gpio.
 763
 764config GPIO_GPIO_MM
 765	tristate "Diamond Systems GPIO-MM GPIO support"
 766	depends on PC104
 767	select ISA_BUS_API
 768	help
 769	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 770
 771	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 772	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 773	  support for these 48 channels of digital I/O.
 774
 775	  The base port addresses for the devices may be configured via the base
 776	  array module parameter.
 777
 778config GPIO_IT87
 779	tristate "IT87xx GPIO support"
 780	help
 781	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 782
 783	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 784	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 785	  well.
 786
 787	  To compile this driver as a module, choose M here: the module will
 788	  be called gpio_it87
 789
 790config GPIO_SCH
 791	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 792	depends on (X86 || COMPILE_TEST) && PCI
 793	select MFD_CORE
 794	select LPC_SCH
 795	help
 796	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
 797	  Intel Tunnel Creek processor, Intel Centerton processor or
 798	  Intel Quark X1000 SoC.
 799
 800	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 801	  powered by the core power rail and are turned off during sleep
 802	  modes (S3 and higher). The remaining four GPIOs are powered by
 803	  the Intel SCH suspend power supply. These GPIOs remain
 804	  active during S3. The suspend powered GPIOs can be used to wake the
 805	  system from the Suspend-to-RAM state.
 806
 807	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
 808	  core power rail and 9 from suspend power supply.
 809
 810	  The Intel Centerton processor has a total of 30 GPIO pins.
 811	  Twenty-one are powered by the core power rail and 9 from the
 812	  suspend power supply.
 813
 814	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 815	  power well and 6 from the suspend power well.
 816
 817config GPIO_SCH311X
 818	tristate "SMSC SCH311x SuperI/O GPIO"
 819	help
 820	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 821	  SCH3116 "Super I/O" chipsets.
 822
 823	  To compile this driver as a module, choose M here: the module will
 824	  be called gpio-sch311x.
 825
 826config GPIO_TS5500
 827	tristate "TS-5500 DIO blocks and compatibles"
 828	depends on TS5500 || COMPILE_TEST
 829	help
 830	  This driver supports Digital I/O exposed by pin blocks found on some
 831	  Technologic Systems platforms. It includes, but is not limited to, 3
 832	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 833	  LCD port.
 834
 835config GPIO_WINBOND
 836	tristate "Winbond Super I/O GPIO support"
 837	select ISA_BUS_API
 838	help
 839	  This option enables support for GPIOs found on Winbond Super I/O
 840	  chips.
 841	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 842	  supported.
 843
 844	  You will need to provide a module parameter "gpios", or a
 845	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 846	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 847
 848	  To compile this driver as a module, choose M here: the module will
 849	  be called gpio-winbond.
 850
 851config GPIO_WS16C48
 852	tristate "WinSystems WS16C48 GPIO support"
 853	select ISA_BUS_API
 854	select GPIOLIB_IRQCHIP
 855	help
 856	  Enables GPIO support for the WinSystems WS16C48. The base port
 857	  addresses for the devices may be configured via the base module
 858	  parameter. The interrupt line numbers for the devices may be
 859	  configured via the irq module parameter.
 860
 861endmenu
 862
 863menu "I2C GPIO expanders"
 864	depends on I2C
 865
 866config GPIO_ADP5588
 867	tristate "ADP5588 I2C GPIO expander"
 868	help
 869	  This option enables support for 18 GPIOs found
 870	  on Analog Devices ADP5588 GPIO Expanders.
 871
 872config GPIO_ADP5588_IRQ
 873	bool "Interrupt controller support for ADP5588"
 874	depends on GPIO_ADP5588=y
 875	select GPIOLIB_IRQCHIP
 876	help
 877	  Say yes here to enable the adp5588 to be used as an interrupt
 878	  controller. It requires the driver to be built in the kernel.
 879
 880config GPIO_ADNP
 881	tristate "Avionic Design N-bit GPIO expander"
 882	depends on OF_GPIO
 883	select GPIOLIB_IRQCHIP
 884	help
 885	  This option enables support for N GPIOs found on Avionic Design
 886	  I2C GPIO expanders. The register space will be extended by powers
 887	  of two, so the controller will need to accommodate for that. For
 888	  example: if a controller provides 48 pins, 6 registers will be
 889	  enough to represent all pins, but the driver will assume a
 890	  register layout for 64 pins (8 registers).
 891
 892config GPIO_GW_PLD
 893	tristate "Gateworks PLD GPIO Expander"
 894	depends on OF_GPIO
 895	help
 896	  Say yes here to provide access to the Gateworks I2C PLD GPIO
 897	  Expander. This is used at least on the Cambria GW2358-4.
 898
 899config GPIO_MAX7300
 900	tristate "Maxim MAX7300 GPIO expander"
 901	select GPIO_MAX730X
 902	help
 903	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 904
 905config GPIO_MAX732X
 906	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 907	help
 908	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 909	  Port Expanders. Each IO port on these chips has a fixed role of
 910	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 911	  Input and Output (designed by 'P'). The combinations are listed
 912	  below:
 913
 914	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 915	                max7322 (4I4O), max7323 (4P4O)
 916
 917	  16 bits:      max7324 (8I8O), max7325 (8P8O),
 918	                max7326 (4I12O), max7327 (4P12O)
 919
 920	  Board setup code must specify the model to use, and the start
 921	  number for these GPIOs.
 922
 923config GPIO_MAX732X_IRQ
 924	bool "Interrupt controller support for MAX732x"
 925	depends on GPIO_MAX732X=y
 926	select GPIOLIB_IRQCHIP
 927	help
 928	  Say yes here to enable the max732x to be used as an interrupt
 929	  controller. It requires the driver to be built in the kernel.
 930
 931config GPIO_MC9S08DZ60
 932	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 933	depends on I2C=y && MACH_MX35_3DS
 934	help
 935	  Select this to enable the MC9S08DZ60 GPIO driver
 936
 937config GPIO_PCA953X
 938	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 939	select REGMAP_I2C
 940	help
 941	  Say yes here to provide access to several register-oriented
 942	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 943	  models include:
 944
 945	  4 bits:       pca9536, pca9537
 946
 947	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 948	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 949
 950	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 951	                tca6416
 952
 953	  24 bits:      tca6424
 954
 955	  40 bits:      pca9505, pca9698
 956
 957config GPIO_PCA953X_IRQ
 958	bool "Interrupt controller support for PCA953x"
 959	depends on GPIO_PCA953X
 960	select GPIOLIB_IRQCHIP
 961	help
 962	  Say yes here to enable the pca953x to be used as an interrupt
 963	  controller. It requires the driver to be built in the kernel.
 964
 965config GPIO_PCA9570
 966	tristate "PCA9570 4-Bit I2C GPO expander"
 967	help
 968	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
 969
 970	  To compile this driver as a module, choose M here: the module will
 971	  be called gpio-pca9570.
 972
 973config GPIO_PCF857X
 974	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 975	select GPIOLIB_IRQCHIP
 976	select IRQ_DOMAIN
 977	help
 978	  Say yes here to provide access to most "quasi-bidirectional" I2C
 979	  GPIO expanders used for additional digital outputs or inputs.
 980	  Most of these parts are from NXP, though TI is a second source for
 981	  some of them.  Compatible models include:
 982
 983	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 984	            pca9670, pca9672, pca9674, pca9674a,
 985	            max7328, max7329
 986
 987	  16 bits:  pcf8575, pcf8575c, pca8575,
 988	            pca9671, pca9673, pca9675
 989
 990	  Your board setup code will need to declare the expanders in
 991	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
 992	  can then be used from drivers and other kernel code, just like
 993	  other GPIOs, but only accessible from task contexts.
 994
 995	  This driver provides an in-kernel interface to those GPIOs using
 996	  platform-neutral GPIO calls.
 997
 998config GPIO_TPIC2810
 999	tristate "TPIC2810 8-Bit I2C GPO expander"
1000	help
1001	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1002
1003	  To compile this driver as a module, choose M here: the module will
1004	  be called gpio-tpic2810.
1005
1006config GPIO_TS4900
1007	tristate "Technologic Systems FPGA I2C GPIO"
1008	depends on SOC_IMX6 || COMPILE_TEST
1009	select REGMAP_I2C
1010	help
1011	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1012	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1013
1014endmenu
1015
1016menu "MFD GPIO expanders"
1017
1018config GPIO_ADP5520
1019	tristate "GPIO Support for ADP5520 PMIC"
1020	depends on PMIC_ADP5520
1021	help
1022	  This option enables support for on-chip GPIO found
1023	  on Analog Devices ADP5520 PMICs.
1024
1025config GPIO_ALTERA_A10SR
1026	tristate "Altera Arria10 System Resource GPIO"
1027	depends on MFD_ALTERA_A10SR
1028	help
1029	  Driver for Arria10 Development Kit GPIO expansion which
1030	  includes reads of pushbuttons and DIP switches as well
1031	  as writes to LEDs.
1032
1033config GPIO_ARIZONA
1034	tristate "Wolfson Microelectronics Arizona class devices"
1035	depends on MFD_ARIZONA
1036	help
1037	  Support for GPIOs on Wolfson Arizona class devices.
1038
1039config GPIO_BD70528
1040	tristate "ROHM BD70528 GPIO support"
1041	depends on MFD_ROHM_BD70528
1042	help
1043	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
1044	  available on the ROHM PMIC in total. The GPIOs can also
1045	  generate interrupts.
1046
1047	  This driver can also be built as a module. If so, the module
1048	  will be called gpio-bd70528.
1049
1050config GPIO_BD71828
1051	tristate "ROHM BD71828 GPIO support"
1052	depends on MFD_ROHM_BD71828
1053	help
1054	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1055	  available on the ROHM PMIC in total. The GPIOs are limited to
1056	  outputs only and pins must be configured to GPIO outputs by
1057	  OTP. Enable this only if you want to use these pins as outputs.
1058
1059	  This driver can also be built as a module. If so, the module
1060	  will be called gpio-bd71828.
1061
1062config GPIO_BD9571MWV
1063	tristate "ROHM BD9571 GPIO support"
1064	depends on MFD_BD9571MWV
1065	help
1066	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1067	  available on the ROHM PMIC in total, both of which can also
1068	  generate interrupts.
1069
1070	  This driver can also be built as a module. If so, the module
1071	  will be called gpio-bd9571mwv.
1072
1073config GPIO_CRYSTAL_COVE
1074	tristate "GPIO support for Crystal Cove PMIC"
1075	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1076	select GPIOLIB_IRQCHIP
1077	help
1078	  Support for GPIO pins on Crystal Cove PMIC.
1079
1080	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1081	  inside.
1082
1083	  This driver can also be built as a module. If so, the module will be
1084	  called gpio-crystalcove.
1085
1086config GPIO_CS5535
1087	tristate "AMD CS5535/CS5536 GPIO support"
1088	depends on X86 || MIPS || COMPILE_TEST
1089	depends on MFD_CS5535
1090	help
1091	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1092	  can be used for quite a number of things.  The CS5535/6 is found on
1093	  AMD Geode and Lemote Yeeloong devices.
1094
1095	  If unsure, say N.
1096
1097config GPIO_DA9052
1098	tristate "Dialog DA9052 GPIO"
1099	depends on PMIC_DA9052
1100	help
1101	  Say yes here to enable the GPIO driver for the DA9052 chip.
1102
1103config GPIO_DA9055
1104	tristate "Dialog Semiconductor DA9055 GPIO"
1105	depends on MFD_DA9055
1106	help
1107	  Say yes here to enable the GPIO driver for the DA9055 chip.
1108
1109	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1110	  be controller by this driver.
1111
1112	  If driver is built as a module it will be called gpio-da9055.
1113
1114config GPIO_DLN2
1115	tristate "Diolan DLN2 GPIO support"
1116	depends on MFD_DLN2
1117	select GPIOLIB_IRQCHIP
1118
1119	help
1120	  Select this option to enable GPIO driver for the Diolan DLN2
1121	  board.
1122
1123	  This driver can also be built as a module. If so, the module
1124	  will be called gpio-dln2.
1125
1126config HTC_EGPIO
1127	bool "HTC EGPIO support"
1128	depends on ARM
1129	help
1130	  This driver supports the CPLD egpio chip present on
1131	  several HTC phones.  It provides basic support for input
1132	  pins, output pins, and irqs.
1133
1134config GPIO_JANZ_TTL
1135	tristate "Janz VMOD-TTL Digital IO Module"
1136	depends on MFD_JANZ_CMODIO
1137	help
1138	  This enables support for the Janz VMOD-TTL Digital IO module.
1139	  This driver provides support for driving the pins in output
1140	  mode only. Input mode is not supported.
1141
1142config GPIO_KEMPLD
1143	tristate "Kontron ETX / COMexpress GPIO"
1144	depends on MFD_KEMPLD
1145	help
1146	  This enables support for the PLD GPIO interface on some Kontron ETX
1147	  and COMexpress (ETXexpress) modules.
1148
1149	  This driver can also be built as a module. If so, the module will be
1150	  called gpio-kempld.
1151
1152config GPIO_LP3943
1153	tristate "TI/National Semiconductor LP3943 GPIO expander"
1154	depends on MFD_LP3943
1155	help
1156	  GPIO driver for LP3943 MFD.
1157	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1158	  Open drain outputs are required for this usage.
1159
1160config GPIO_LP873X
1161	tristate "TI LP873X GPO"
1162	depends on MFD_TI_LP873X
1163	help
1164	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1165	  on LP873X PMICs.
1166
1167	  This driver can also be built as a module. If so, the module will be
1168	  called gpio-lp873x.
1169
1170config GPIO_LP87565
1171	tristate "TI LP87565 GPIO"
1172	depends on MFD_TI_LP87565
1173	help
1174	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1175	  on LP87565 PMICs.
1176
1177	  This driver can also be built as a module. If so, the module will be
1178	  called gpio-lp87565.
1179
1180config GPIO_MADERA
1181	tristate "Cirrus Logic Madera class codecs"
1182	depends on PINCTRL_MADERA
1183	help
1184	  Support for GPIOs on Cirrus Logic Madera class codecs.
1185
1186config GPIO_MAX77620
1187	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1188	depends on MFD_MAX77620
1189	select GPIOLIB_IRQCHIP
1190	help
1191	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1192	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1193	  driver also provides interrupt support for each of the gpios.
1194	  Say yes here to enable the max77620 to be used as gpio controller.
1195
1196config GPIO_MAX77650
1197	tristate "Maxim MAX77650/77651 GPIO support"
1198	depends on MFD_MAX77650
1199	help
1200	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1201	  These chips have a single pin that can be configured as GPIO.
1202
1203config GPIO_MSIC
1204	bool "Intel MSIC mixed signal gpio support"
1205	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1206	help
1207	  Enable support for GPIO on intel MSIC controllers found in
1208	  intel MID devices
1209
1210config GPIO_PALMAS
1211	bool "TI PALMAS series PMICs GPIO"
1212	depends on MFD_PALMAS
1213	help
1214	  Select this option to enable GPIO driver for the TI PALMAS
1215	  series chip family.
1216
1217config GPIO_RC5T583
1218	bool "RICOH RC5T583 GPIO"
1219	depends on MFD_RC5T583
1220	help
1221	  Select this option to enable GPIO driver for the Ricoh RC5T583
1222	  chip family.
1223	  This driver provides the support for driving/reading the gpio pins
1224	  of RC5T583 device through standard gpio library.
1225
1226config GPIO_STMPE
1227	bool "STMPE GPIOs"
1228	depends on MFD_STMPE
1229	depends on OF_GPIO
1230	select GPIOLIB_IRQCHIP
1231	help
1232	  This enables support for the GPIOs found on the STMPE I/O
1233	  Expanders.
1234
1235config GPIO_TC3589X
1236	bool "TC3589X GPIOs"
1237	depends on MFD_TC3589X
1238	depends on OF_GPIO
1239	select GPIOLIB_IRQCHIP
1240	help
1241	  This enables support for the GPIOs found on the TC3589X
1242	  I/O Expander.
1243
1244config GPIO_TIMBERDALE
1245	bool "Support for timberdale GPIO IP"
1246	depends on MFD_TIMBERDALE
1247	help
1248	Add support for the GPIO IP in the timberdale FPGA.
1249
1250config GPIO_TPS65086
1251	tristate "TI TPS65086 GPO"
1252	depends on MFD_TPS65086
1253	help
1254	  This driver supports the GPO on TI TPS65086x PMICs.
1255
1256config GPIO_TPS65218
1257	tristate "TPS65218 GPIO"
1258	depends on MFD_TPS65218
1259	help
1260	  Select this option to enable GPIO driver for the TPS65218
1261	  chip family.
1262
1263config GPIO_TPS6586X
1264	bool "TPS6586X GPIO"
1265	depends on MFD_TPS6586X
1266	help
1267	  Select this option to enable GPIO driver for the TPS6586X
1268	  chip family.
1269
1270config GPIO_TPS65910
1271	bool "TPS65910 GPIO"
1272	depends on MFD_TPS65910
1273	help
1274	  Select this option to enable GPIO driver for the TPS65910
1275	  chip family.
1276
1277config GPIO_TPS65912
1278	tristate "TI TPS65912 GPIO"
1279	depends on MFD_TPS65912
1280	help
1281	  This driver supports TPS65912 gpio chip
1282
1283config GPIO_TPS68470
1284	bool "TPS68470 GPIO"
1285	depends on MFD_TPS68470
1286	help
1287	  Select this option to enable GPIO driver for the TPS68470
1288	  chip family.
1289	  There are 7 GPIOs and few sensor related GPIOs supported
1290	  by the TPS68470. While the 7 GPIOs can be configured as
1291	  input or output as appropriate, the sensor related GPIOs
1292	  are "output only" GPIOs.
1293
1294	  This driver config is bool, as the GPIO functionality
1295	  of the TPS68470 must be available before dependent
1296	  drivers are loaded.
1297
1298config GPIO_TQMX86
1299	tristate "TQ-Systems QTMX86 GPIO"
1300	depends on MFD_TQMX86 || COMPILE_TEST
1301	select GPIOLIB_IRQCHIP
1302	help
1303	  This driver supports GPIO on the TQMX86 IO controller.
1304
1305config GPIO_TWL4030
1306	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1307	depends on TWL4030_CORE
1308	help
1309	  Say yes here to access the GPIO signals of various multi-function
1310	  power management chips from Texas Instruments.
1311
1312config GPIO_TWL6040
1313	tristate "TWL6040 GPO"
1314	depends on TWL6040_CORE
1315	help
1316	  Say yes here to access the GPO signals of twl6040
1317	  audio chip from Texas Instruments.
1318
1319config GPIO_UCB1400
1320	tristate "Philips UCB1400 GPIO"
1321	depends on UCB1400_CORE
1322	help
1323	  This enables support for the Philips UCB1400 GPIO pins.
1324	  The UCB1400 is an AC97 audio codec.
1325
1326config GPIO_WHISKEY_COVE
1327	tristate "GPIO support for Whiskey Cove PMIC"
1328	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1329	select GPIOLIB_IRQCHIP
1330	help
1331	  Support for GPIO pins on Whiskey Cove PMIC.
1332
1333	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1334	  inside.
1335
1336	  This driver can also be built as a module. If so, the module will be
1337	  called gpio-wcove.
1338
1339config GPIO_WM831X
1340	tristate "WM831x GPIOs"
1341	depends on MFD_WM831X
1342	help
1343	  Say yes here to access the GPIO signals of WM831x power management
1344	  chips from Wolfson Microelectronics.
1345
1346config GPIO_WM8350
1347	tristate "WM8350 GPIOs"
1348	depends on MFD_WM8350
1349	help
1350	  Say yes here to access the GPIO signals of WM8350 power management
1351	  chips from Wolfson Microelectronics.
1352
1353config GPIO_WM8994
1354	tristate "WM8994 GPIOs"
1355	depends on MFD_WM8994
1356	help
1357	  Say yes here to access the GPIO signals of WM8994 audio hub
1358	  CODECs from Wolfson Microelectronics.
1359
1360endmenu
1361
1362menu "PCI GPIO expanders"
1363	depends on PCI
1364
1365config GPIO_AMD8111
1366	tristate "AMD 8111 GPIO driver"
1367	depends on X86 || COMPILE_TEST
1368	help
1369	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1370
1371	  Note, that usually system firmware/ACPI handles GPIO pins on their
1372	  own and users might easily break their systems with uncarefull usage
1373	  of this driver!
1374
1375	  If unsure, say N
1376
1377config GPIO_BT8XX
1378	tristate "BT8XX GPIO abuser"
1379	depends on VIDEO_BT848=n
1380	help
1381	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1382	  as a cheap PCI GPIO card.
1383
1384	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1385
1386	  The card needs to be physically altered for using it as a
1387	  GPIO card. For more information on how to build a GPIO card
1388	  from a BT8xx TV card, see the documentation file at
1389	  Documentation/driver-api/gpio/bt8xxgpio.rst
1390
1391	  If unsure, say N.
1392
1393config GPIO_INTEL_MID
1394	bool "Intel MID GPIO support"
1395	depends on X86_INTEL_MID
1396	select GPIOLIB_IRQCHIP
1397	help
1398	  Say Y here to support Intel MID GPIO.
1399
1400config GPIO_MERRIFIELD
1401	tristate "Intel Merrifield GPIO support"
1402	depends on X86_INTEL_MID
1403	select GPIOLIB_IRQCHIP
1404	help
1405	  Say Y here to support Intel Merrifield GPIO.
1406
1407config GPIO_MLXBF
1408	tristate "Mellanox BlueField SoC GPIO"
1409	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1410	select GPIO_GENERIC
1411	help
1412	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1413
1414config GPIO_MLXBF2
1415	tristate "Mellanox BlueField 2 SoC GPIO"
1416	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1417	select GPIO_GENERIC
1418	help
1419	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1420
1421config GPIO_ML_IOH
1422	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1423	depends on X86 || COMPILE_TEST
1424	select GENERIC_IRQ_CHIP
1425	help
1426	  ML7213 is companion chip for Intel Atom E6xx series.
1427	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1428	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1429	  This driver can access the IOH's GPIO device.
1430
1431config GPIO_PCH
1432	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1433	depends on X86_32 || MIPS || COMPILE_TEST
1434	select GENERIC_IRQ_CHIP
1435	help
1436	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1437	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1438	  This driver can access PCH GPIO device.
1439
1440	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1441	  Output Hub), ML7223 and ML7831.
1442	  ML7223 IOH is for MP(Media Phone) use.
1443	  ML7831 IOH is for general purpose use.
1444	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1445	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1446
1447config GPIO_PCI_IDIO_16
1448	tristate "ACCES PCI-IDIO-16 GPIO support"
1449	select GPIOLIB_IRQCHIP
1450	help
1451	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1452	  generated when any of the inputs change state (low to high or high to
1453	  low). Input filter control is not supported by this driver, and the
1454	  input filters are deactivated by this driver.
1455
1456config GPIO_PCIE_IDIO_24
1457	tristate "ACCES PCIe-IDIO-24 GPIO support"
1458	select GPIOLIB_IRQCHIP
1459	help
1460	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1461	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1462	  when any of the inputs change state (low to high or high to low).
1463	  Input filter control is not supported by this driver, and the input
1464	  filters are deactivated by this driver.
1465
1466config GPIO_RDC321X
1467	tristate "RDC R-321x GPIO support"
1468	select MFD_CORE
1469	select MFD_RDC321X
1470	help
1471	  Support for the RDC R321x SoC GPIOs over southbridge
1472	  PCI configuration space.
1473
1474config GPIO_SODAVILLE
1475	bool "Intel Sodaville GPIO support"
1476	depends on X86 && OF
1477	select GPIO_GENERIC
1478	select GENERIC_IRQ_CHIP
1479	help
1480	  Say Y here to support Intel Sodaville GPIO.
1481
1482endmenu
1483
1484menu "SPI GPIO expanders"
1485	depends on SPI_MASTER
1486
1487config GPIO_74X164
1488	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1489	depends on OF_GPIO
1490	help
1491	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1492	  shift registers. This driver can be used to provide access
1493	  to more gpio outputs.
1494
1495config GPIO_MAX3191X
1496	tristate "Maxim MAX3191x industrial serializer"
1497	select CRC8
1498	help
1499	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1500	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1501	  chip to make 8 digital 24V inputs available via SPI.  Supports
1502	  CRC checksums to guard against electromagnetic interference,
1503	  as well as undervoltage and overtemperature detection.
1504
1505config GPIO_MAX7301
1506	tristate "Maxim MAX7301 GPIO expander"
1507	select GPIO_MAX730X
1508	help
1509	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1510
1511config GPIO_MC33880
1512	tristate "Freescale MC33880 high-side/low-side switch"
1513	help
1514	  SPI driver for Freescale MC33880 high-side/low-side switch.
1515	  This provides GPIO interface supporting inputs and outputs.
1516
1517config GPIO_PISOSR
1518	tristate "Generic parallel-in/serial-out shift register"
1519	help
1520	  GPIO driver for SPI compatible parallel-in/serial-out shift
1521	  registers. These are input only devices.
1522
1523config GPIO_XRA1403
1524	tristate "EXAR XRA1403 16-bit GPIO expander"
1525	select REGMAP_SPI
1526	help
1527	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1528
1529config GPIO_MOXTET
1530	tristate "Turris Mox Moxtet bus GPIO expander"
1531	depends on MOXTET
1532	help
1533	  Say yes here if you are building for the Turris Mox router.
1534	  This is the driver needed for configuring the GPIOs via the Moxtet
1535	  bus. For example the Mox module with SFP cage needs this driver
1536	  so that phylink can use corresponding GPIOs.
1537
1538endmenu
1539
1540menu "USB GPIO expanders"
1541	depends on USB
1542
1543config GPIO_VIPERBOARD
1544	tristate "Viperboard GPIO a & b support"
1545	depends on MFD_VIPERBOARD
1546	help
1547	  Say yes here to access the GPIO signals of Nano River
1548	  Technologies Viperboard. There are two GPIO chips on the
1549	  board: gpioa and gpiob.
1550	  See viperboard API specification and Nano
1551	  River Tech's viperboard.h for detailed meaning
1552	  of the module parameters.
1553
1554endmenu
1555
1556config GPIO_AGGREGATOR
1557	tristate "GPIO Aggregator"
1558	help
1559	  Say yes here to enable the GPIO Aggregator, which provides a way to
1560	  aggregate existing GPIO lines into a new virtual GPIO chip.
1561	  This can serve the following purposes:
1562	    - Assign permissions for a collection of GPIO lines to a user,
1563	    - Export a collection of GPIO lines to a virtual machine,
1564	    - Provide a generic driver for a GPIO-operated device in an
1565	      industrial control context, to be operated from userspace using
1566	      the GPIO chardev interface.
1567
1568config GPIO_MOCKUP
1569	tristate "GPIO Testing Driver"
1570	select IRQ_SIM
1571	help
1572	  This enables GPIO Testing driver, which provides a way to test GPIO
1573	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1574	  must be selected for this test.
1575	  User could use it through the script in
1576	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1577	  it.
1578
1579endif