1# SPDX-License-Identifier: GPL-2.0-only
   2#
   3# GPIO infrastructure and drivers
   4#
   5
 
 
 
 
 
 
 
 
   6menuconfig GPIOLIB
   7	bool "GPIO Support"
   8	help
   9	  This enables GPIO support through the generic GPIO library.
  10	  You only need to enable this if you also want to enable
  11	  one or more of the GPIO drivers below.
  12
  13	  If unsure, say N.
  14
  15if GPIOLIB
  16
  17config GPIOLIB_FASTPATH_LIMIT
  18	int "Maximum number of GPIOs for fast path"
  19	range 32 512
  20	default 512
  21	help
  22	  This adjusts the point at which certain APIs will switch from
  23	  using a stack allocated buffer to a dynamically allocated buffer.
  24
  25	  You shouldn't need to change this unless you really need to
  26	  optimize either stack space or performance. Change this carefully
  27	  since setting an incorrect value could cause stack corruption.
  28
  29config OF_GPIO
  30	def_bool y
  31	depends on OF
  32	depends on HAS_IOMEM
  33
  34config GPIO_ACPI
  35	def_bool y
  36	depends on ACPI
  37
  38config GPIOLIB_IRQCHIP
  39	select IRQ_DOMAIN
  40	bool
  41
  42config OF_GPIO_MM_GPIOCHIP
  43	bool
  44	help
  45	  This adds support for the legacy 'struct of_mm_gpio_chip' interface
  46	  from PowerPC. Existing drivers using this interface need to select
  47	  this symbol, but new drivers should use the generic gpio-regmap
  48	  infrastructure instead.
  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)" if EXPERT
  63	depends on SYSFS
  64	select GPIO_CDEV # We need to encourage the new ABI
  65	help
  66	  Say Y here to add the legacy sysfs interface for GPIOs.
  67
  68	  This ABI is deprecated. If you want to use GPIO from userspace,
  69	  use the character device /dev/gpiochipN with the appropriate
  70	  ioctl() operations instead.
  71
  72config GPIO_CDEV
  73	bool
  74	prompt "Character device (/dev/gpiochipN) support" if EXPERT
  75	default y
  76	help
  77	  Say Y here to add the character device /dev/gpiochipN interface
  78	  for GPIOs. The character device allows userspace to control GPIOs
  79	  using ioctl() operations.
  80
  81	  Only say N if you are sure that the GPIO character device is not
  82	  required.
  83
  84	  If unsure, say Y.
  85
  86config GPIO_CDEV_V1
  87	bool "Support GPIO ABI Version 1"
  88	default y
  89	depends on GPIO_CDEV
  90	help
  91	  Say Y here to support version 1 of the GPIO CDEV ABI.
  92
  93	  This ABI version is deprecated.
  94	  Please use the latest ABI for new developments.
  95
  96	  If unsure, say Y.
  97
  98config GPIO_GENERIC
  99	depends on HAS_IOMEM # Only for IOMEM drivers
 100	tristate
 101
 102config GPIO_REGMAP
 103	select REGMAP
 104	tristate
 105
 106# put drivers in the right section, in alphabetical order
 107
 108# This symbol is selected by both I2C and SPI expanders
 109config GPIO_MAX730X
 110	tristate
 111
 112config GPIO_IDIO_16
 113	tristate
 114	select REGMAP_IRQ
 115	select GPIOLIB_IRQCHIP
 116	select GPIO_REGMAP
 117	help
 118	  Enables support for the idio-16 library functions. The idio-16 library
 119	  provides functions to facilitate communication with devices within the
 120	  ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
 121
 122	  If built as a module its name will be gpio-idio-16.
 123
 124menu "Memory mapped GPIO drivers"
 125	depends on HAS_IOMEM
 126
 127config GPIO_74XX_MMIO
 128	tristate "GPIO driver for 74xx-ICs with MMIO access"
 129	depends on OF_GPIO
 130	select GPIO_GENERIC
 131	help
 132	  Say yes here to support GPIO functionality for 74xx-compatible ICs
 133	  with MMIO access. Compatible models include:
 134	    1 bit:	741G125 (Input), 741G74 (Output)
 135	    2 bits:	742G125 (Input), 7474 (Output)
 136	    4 bits:	74125 (Input), 74175 (Output)
 137	    6 bits:	74365 (Input), 74174 (Output)
 138	    8 bits:	74244 (Input), 74273 (Output)
 139	    16 bits:	741624 (Input), 7416374 (Output)
 140
 141config GPIO_ALTERA
 142	tristate "Altera GPIO"
 143	depends on OF_GPIO
 144	select GPIOLIB_IRQCHIP
 145	select OF_GPIO_MM_GPIOCHIP
 146	help
 147	  Say Y or M here to build support for the Altera PIO device.
 148
 149	  If driver is built as a module it will be called gpio-altera.
 150
 151config GPIO_AMDPT
 152	tristate "AMD Promontory GPIO support"
 153	depends on ACPI
 154	select GPIO_GENERIC
 155	help
 156	  Driver for GPIO functionality on Promontory IOHub.
 157	  Requires ACPI ASL code to enumerate as a platform device.
 158
 159config GPIO_ASPEED
 160	tristate "Aspeed GPIO support"
 161	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 162	select GPIOLIB_IRQCHIP
 163	help
 164	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 165
 166config GPIO_ASPEED_SGPIO
 167	bool "Aspeed SGPIO support"
 168	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 169	select GPIO_GENERIC
 170	select GPIOLIB_IRQCHIP
 171	help
 172	  Say Y here to support Aspeed AST2500 SGPIO functionality.
 173
 174config GPIO_ATH79
 175	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 176	default y if ATH79
 177	depends on ATH79 || COMPILE_TEST
 178	select GPIO_GENERIC
 179	select GPIOLIB_IRQCHIP
 180	help
 181	  Select this option to enable GPIO driver for
 182	  Atheros AR71XX/AR724X/AR913X SoC devices.
 183
 184config GPIO_RASPBERRYPI_EXP
 185	tristate "Raspberry Pi 3 GPIO Expander"
 186	default RASPBERRYPI_FIRMWARE
 187	depends on OF_GPIO
 188	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 189	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 190	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 191	help
 192	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 193	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
 194
 195config GPIO_BCM_KONA
 196	bool "Broadcom Kona GPIO"
 197	depends on ARCH_BCM_MOBILE || COMPILE_TEST
 198	help
 199	  Turn on GPIO support for Broadcom "Kona" chips.
 200
 201config GPIO_BCM_XGS_IPROC
 202	tristate "BRCM XGS iProc GPIO support"
 203	depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
 204	select GPIO_GENERIC
 205	select GPIOLIB_IRQCHIP
 206	default ARCH_BCM_IPROC
 207	help
 208	  Say yes here to enable GPIO support for Broadcom XGS iProc SoCs.
 209
 210config GPIO_BRCMSTB
 211	tristate "BRCMSTB GPIO support"
 212	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 213	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 214	select GPIO_GENERIC
 215	select IRQ_DOMAIN
 216	help
 217	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 218
 219config GPIO_CADENCE
 220	tristate "Cadence GPIO support"
 221	depends on OF_GPIO
 222	select GPIO_GENERIC
 223	select GPIOLIB_IRQCHIP
 224	help
 225	  Say yes here to enable support for Cadence GPIO controller.
 226
 227config GPIO_CLPS711X
 228	tristate "CLPS711X GPIO support"
 229	depends on ARCH_CLPS711X || COMPILE_TEST
 230	select GPIO_GENERIC
 231	help
 232	  Say yes here to support GPIO on CLPS711X SoCs.
 233
 234config GPIO_DAVINCI
 235	tristate "TI Davinci/Keystone GPIO support"
 236	default y if ARCH_DAVINCI
 237	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
 238	help
 239	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 240
 241config GPIO_DWAPB
 242	tristate "Synopsys DesignWare APB GPIO driver"
 243	select GPIO_GENERIC
 244	select GPIOLIB_IRQCHIP
 245	help
 246	  Say Y or M here to build support for the Synopsys DesignWare APB
 247	  GPIO block.
 248
 249config GPIO_EIC_SPRD
 250	tristate "Spreadtrum EIC support"
 251	depends on ARCH_SPRD || COMPILE_TEST
 252	depends on OF_GPIO
 253	select GPIOLIB_IRQCHIP
 254	help
 255	  Say yes here to support Spreadtrum EIC device.
 256
 257config GPIO_EM
 258	tristate "Emma Mobile GPIO"
 259	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 260	help
 261	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 262
 263config GPIO_EN7523
 264	tristate "Airoha GPIO support"
 265	depends on ARCH_AIROHA
 266	default ARCH_AIROHA
 267	select GPIO_GENERIC
 268	select GPIOLIB_IRQCHIP
 269	help
 270	  Say Y or M here to support the GPIO controller block on the
 271	  Airoha EN7523 SoC. It supports two banks of 32 GPIOs.
 272
 273config GPIO_EP93XX
 274	def_bool y
 275	depends on ARCH_EP93XX
 276	select GPIO_GENERIC
 277	select GPIOLIB_IRQCHIP
 278
 279config GPIO_EXAR
 280	tristate "Support for GPIO pins on XR17V352/354/358"
 281	depends on SERIAL_8250_EXAR
 282	select REGMAP_MMIO
 283	help
 284	  Selecting this option will enable handling of GPIO pins present
 285	  on Exar XR17V352/354/358 chips.
 286
 287config GPIO_GE_FPGA
 288	bool "GE FPGA based GPIO"
 289	depends on GE_FPGA || COMPILE_TEST
 290	select GPIO_GENERIC
 291	help
 292	  Support for common GPIO functionality provided on some GE Single Board
 293	  Computers.
 294
 295	  This driver provides basic support (configure as input or output, read
 296	  and write pin state) for GPIO implemented in a number of GE single
 297	  board computers.
 298
 299config GPIO_FTGPIO010
 300	bool "Faraday FTGPIO010 GPIO"
 301	depends on OF_GPIO
 302	select GPIO_GENERIC
 303	select GPIOLIB_IRQCHIP
 304	default (ARCH_GEMINI || ARCH_MOXART)
 305	help
 306	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 307	  Cortina systems Gemini platforms, Moxa ART and others.
 308
 309config GPIO_GENERIC_PLATFORM
 310	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 311	select GPIO_GENERIC
 312	help
 313	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
 314
 315config GPIO_GRGPIO
 316	tristate "Aeroflex Gaisler GRGPIO support"
 317	depends on OF_GPIO
 318	select GPIO_GENERIC
 319	select IRQ_DOMAIN
 320	help
 321	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 322	  VHDL IP core library.
 323
 324config GPIO_HISI
 325	tristate "HiSilicon GPIO controller driver"
 326	depends on ARM64 || COMPILE_TEST
 327	select GPIO_GENERIC
 328	select GPIOLIB_IRQCHIP
 329	help
 330	  Say Y or M here to build support for the HiSilicon GPIO controller
 331	  driver GPIO block.
 332	  This GPIO controller supports double-edge interrupt and multi-core
 333	  concurrent access.
 334
 335config GPIO_HLWD
 336	tristate "Nintendo Wii (Hollywood) GPIO"
 337	depends on OF_GPIO
 338	select GPIO_GENERIC
 339	select GPIOLIB_IRQCHIP
 340	help
 341	  Select this to support the GPIO controller of the Nintendo Wii.
 342
 343	  If unsure, say N.
 344
 345config GPIO_ICH
 346	tristate "Intel ICH GPIO"
 347	depends on X86
 348	depends on LPC_ICH
 
 349	help
 350	  Say yes here to support the GPIO functionality of a number of Intel
 351	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 352	  ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g.
 353	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 354
 355	  If unsure, say N.
 356
 357config GPIO_IMX_SCU
 358       def_bool y
 359       depends on IMX_SCU
 
 
 
 
 
 
 360
 361config GPIO_IXP4XX
 362	bool "Intel IXP4xx GPIO"
 
 363	depends on ARCH_IXP4XX
 364	depends on OF
 365	select GPIO_GENERIC
 366	select GPIOLIB_IRQCHIP
 367	select IRQ_DOMAIN_HIERARCHY
 368	help
 369	  Say yes here to support the GPIO functionality of a number of Intel
 370	  IXP4xx series of chips.
 371
 372	  If unsure, say N.
 373
 374config GPIO_LOGICVC
 375	tristate "Xylon LogiCVC GPIO support"
 376	depends on MFD_SYSCON && OF
 377	help
 378	  Say yes here to support GPIO functionality of the Xylon LogiCVC
 379	  programmable logic block.
 380
 381config GPIO_LOONGSON
 382	bool "Loongson-2/3 GPIO support"
 383	depends on CPU_LOONGSON2EF || CPU_LOONGSON64
 384	help
 385	  Driver for GPIO functionality on Loongson-2F/3A/3B processors.
 386
 387config GPIO_LOONGSON_64BIT
 388	tristate "Loongson 64 bit GPIO support"
 389	depends on LOONGARCH || COMPILE_TEST
 390	depends on OF_GPIO
 391	select GPIO_GENERIC
 392	help
 393	  Say yes here to support the GPIO functionality of a number of
 394	  Loongson series of chips. The Loongson GPIO controller supports
 395	  up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and
 396	  the remaining 56 are reused with other functions, with edge or
 397	  level triggered interrupts.
 398
 399config GPIO_LPC18XX
 400	tristate "NXP LPC18XX/43XX GPIO support"
 401	default y if ARCH_LPC18XX
 402	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 403	select IRQ_DOMAIN_HIERARCHY
 404	help
 405	  Select this option to enable GPIO driver for
 406	  NXP LPC18XX/43XX devices.
 407
 408config GPIO_LPC32XX
 409	tristate "NXP LPC32XX GPIO support"
 410	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
 411	help
 412	  Select this option to enable GPIO driver for
 413	  NXP LPC32XX devices.
 414
 
 
 
 
 
 
 
 
 415config GPIO_MB86S7X
 416	tristate "GPIO support for Fujitsu MB86S7x Platforms"
 417	help
 418	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 419
 420config GPIO_MENZ127
 421	tristate "MEN 16Z127 GPIO support"
 422	depends on MCB
 423	select GPIO_GENERIC
 424	help
 425	  Say yes here to support the MEN 16Z127 GPIO Controller.
 426
 427config GPIO_MM_LANTIQ
 428	bool "Lantiq Memory mapped GPIOs"
 429	depends on LANTIQ && SOC_XWAY
 430	select OF_GPIO_MM_GPIOCHIP
 431	help
 432	  This enables support for memory mapped GPIOs on the External Bus Unit
 433	  (EBU) found on Lantiq SoCs. The GPIOs are output only as they are
 434	  created by attaching a 16-bit latch to the bus.
 435
 436config GPIO_MPC5200
 437	def_bool y
 438	depends on PPC_MPC52xx
 439	select OF_GPIO_MM_GPIOCHIP
 440
 441config GPIO_MPC8XXX
 442	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 443	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 444		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 445		   COMPILE_TEST
 446	select GPIO_GENERIC
 447	select IRQ_DOMAIN
 448	help
 449	  Say Y here if you're going to use hardware that connects to the
 450	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 451
 452config GPIO_MT7621
 453	bool "Mediatek MT7621 GPIO Support"
 454	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 455	depends on OF_GPIO
 456	select GPIO_GENERIC
 457	select GPIOLIB_IRQCHIP
 458	help
 459	  Say yes here to support the Mediatek MT7621 SoC GPIO device.
 460
 461config GPIO_MVEBU
 462	def_bool y
 463	depends on PLAT_ORION || ARCH_MVEBU
 464	depends on OF_GPIO
 465	select GENERIC_IRQ_CHIP
 466	select REGMAP_MMIO
 467
 468config GPIO_MXC
 469	tristate "i.MX GPIO support"
 470	depends on ARCH_MXC || COMPILE_TEST
 471	select GPIO_GENERIC
 472	select GENERIC_IRQ_CHIP
 473
 474config GPIO_MXS
 475	bool "Freescale MXS GPIO support" if COMPILE_TEST
 476	depends on ARCH_MXS || COMPILE_TEST
 477	default y if ARCH_MXS
 478	select GPIO_GENERIC
 479	select GENERIC_IRQ_CHIP
 480
 481config GPIO_NPCM_SGPIO
 482	bool "Nuvoton SGPIO support"
 483	depends on ARCH_NPCM || COMPILE_TEST
 484	select GPIOLIB_IRQCHIP
 485	help
 486	  Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality.
 487
 488config GPIO_OCTEON
 489	tristate "Cavium OCTEON GPIO"
 490	depends on CAVIUM_OCTEON_SOC
 491	default y
 492	help
 493	  Say yes here to support the on-chip GPIO lines on the OCTEON
 494	  family of SOCs.
 495
 496config GPIO_OMAP
 497	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 498	default y if ARCH_OMAP
 499	depends on ARM
 500	select GENERIC_IRQ_CHIP
 501	select GPIOLIB_IRQCHIP
 502	help
 503	  Say yes here to enable GPIO support for TI OMAP SoCs.
 504
 505config GPIO_PL061
 506	tristate "PrimeCell PL061 GPIO support"
 507	depends on ARM_AMBA
 508	select IRQ_DOMAIN
 509	select GPIOLIB_IRQCHIP
 510	help
 511	  Say yes here to support the PrimeCell PL061 GPIO device.
 
 
 
 
 
 
 
 
 512
 513config GPIO_PXA
 514	bool "PXA GPIO support"
 515	depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
 516	help
 517	  Say yes here to support the PXA GPIO device.
 518
 519config GPIO_RCAR
 520	tristate "Renesas R-Car and RZ/G GPIO support"
 521	depends on ARCH_RENESAS || COMPILE_TEST
 522	select GPIOLIB_IRQCHIP
 523	help
 524	  Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs.
 525
 526config GPIO_RDA
 527	bool "RDA Micro GPIO controller support"
 528	depends on ARCH_RDA || COMPILE_TEST
 529	depends on OF_GPIO
 530	select GPIO_GENERIC
 531	select GPIOLIB_IRQCHIP
 532	help
 533	  Say Y here to support RDA Micro GPIO controller.
 534
 535config GPIO_REALTEK_OTTO
 536	tristate "Realtek Otto GPIO support"
 537	depends on MACH_REALTEK_RTL
 538	default MACH_REALTEK_RTL
 539	select GPIO_GENERIC
 540	select GPIOLIB_IRQCHIP
 541	help
 542	  The GPIO controller on the Otto MIPS platform supports up to two
 543	  banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs
 544	  are grouped in four 8-bit wide ports.
 545
 546	  When built as a module, the module will be called realtek_otto_gpio.
 547
 548config GPIO_REG
 549	bool
 550	help
 551	  A 32-bit single register GPIO fixed in/out implementation.  This
 552	  can be used to represent any register as a set of GPIO signals.
 553
 554config GPIO_ROCKCHIP
 555	tristate "Rockchip GPIO support"
 556	depends on ARCH_ROCKCHIP || COMPILE_TEST
 557	select GENERIC_IRQ_CHIP
 558	select GPIOLIB_IRQCHIP
 559	default ARCH_ROCKCHIP
 560	help
 561	  Say yes here to support GPIO on Rockchip SoCs.
 562
 563config GPIO_RTD
 564	tristate "Realtek DHC GPIO support"
 565	depends on ARCH_REALTEK
 566	default y
 567	select GPIOLIB_IRQCHIP
 568	help
 569	  This option enables support for GPIOs found on Realtek DHC(Digital
 570	  Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319,
 571	  RTD1319D, RTD1395, RTD1619 and RTD1619B.
 572
 573	  Say yes here to support GPIO functionality and GPIO interrupt on
 574	  Realtek DHC SoCs.
 575
 576config GPIO_SAMA5D2_PIOBU
 577	tristate "SAMA5D2 PIOBU GPIO support"
 578	depends on MFD_SYSCON
 579	depends on OF_GPIO
 580	depends on ARCH_AT91 || COMPILE_TEST
 581	select GPIO_SYSCON
 582	help
 583	  Say yes here to use the PIOBU pins as GPIOs.
 584
 585	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
 586	  The difference from regular GPIOs is that they
 587	  maintain their value during backup/self-refresh.
 588
 589config GPIO_SIFIVE
 590	tristate "SiFive GPIO support"
 591	depends on OF_GPIO
 592	select IRQ_DOMAIN_HIERARCHY
 593	select GPIO_GENERIC
 594	select GPIOLIB_IRQCHIP
 595	select REGMAP_MMIO
 596	help
 597	  Say yes here to support the GPIO device on SiFive SoCs.
 598
 599config GPIO_SIOX
 600	tristate "SIOX GPIO support"
 601	depends on SIOX
 602	select GPIOLIB_IRQCHIP
 603	help
 604	  Say yes here to support SIOX I/O devices. These are units connected
 605	  via a SIOX bus and have a number of fixed-direction I/O lines.
 606
 607config GPIO_SNPS_CREG
 608	bool "Synopsys GPIO via CREG (Control REGisters) driver"
 609	depends on ARC || COMPILE_TEST
 610	depends on OF_GPIO
 611	help
 612	  This driver supports GPIOs via CREG on various Synopsys SoCs.
 613	  This is a single-register MMIO GPIO driver for complex cases
 614	  where only several fields in register belong to GPIO lines and
 615	  each GPIO line owns a field with different length and on/off value.
 616
 617config GPIO_SPEAR_SPICS
 618	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 619	depends on PLAT_SPEAR
 620	select GENERIC_IRQ_CHIP
 621	help
 622	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device.
 623
 624config GPIO_SPRD
 625	tristate "Spreadtrum GPIO support"
 626	depends on ARCH_SPRD || COMPILE_TEST
 627	depends on OF_GPIO
 628	select GPIOLIB_IRQCHIP
 629	help
 630	  Say yes here to support Spreadtrum GPIO device.
 631
 
 
 
 
 
 
 
 
 632config GPIO_STP_XWAY
 633	bool "XWAY STP GPIOs"
 634	depends on SOC_XWAY || COMPILE_TEST
 635	depends on OF_GPIO
 636	help
 637	  This enables support for the Serial To Parallel (STP) unit found on
 638	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 639	  that can be up to 24 bits. This peripheral is aimed at driving LEDs.
 640	  Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and
 641	  phy status.
 642
 643config GPIO_SYSCON
 644	tristate "GPIO based on SYSCON"
 645	depends on MFD_SYSCON && OF
 646	help
 647	  Say yes here to support GPIO functionality though SYSCON driver.
 648
 649config GPIO_TANGIER
 650	tristate
 651	select GPIOLIB_IRQCHIP
 652	help
 653	  GPIO support for Intel Tangier and compatible platforms.
 654	  Currently supported:
 655	   - Elkhart Lake
 656	   - Merrifield
 657
 658	  If built as a module its name will be gpio-tangier.
 659
 660config GPIO_TB10X
 661	bool
 662	select GPIO_GENERIC
 663	select GENERIC_IRQ_CHIP
 664	select OF_GPIO
 665
 666config GPIO_TEGRA
 667	tristate "NVIDIA Tegra GPIO support"
 668	default ARCH_TEGRA
 669	depends on ARCH_TEGRA || COMPILE_TEST
 670	depends on OF_GPIO
 671	select GPIOLIB_IRQCHIP
 672	select IRQ_DOMAIN_HIERARCHY
 673	help
 674	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 675
 676config GPIO_TEGRA186
 677	tristate "NVIDIA Tegra186 GPIO support"
 678	default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC
 679	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
 680	depends on OF_GPIO
 681	select GPIOLIB_IRQCHIP
 682	select IRQ_DOMAIN_HIERARCHY
 683	help
 684	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 685
 686config GPIO_TS4800
 687	tristate "TS-4800 DIO blocks and compatibles"
 688	depends on OF_GPIO
 689	depends on SOC_IMX51 || COMPILE_TEST
 690	select GPIO_GENERIC
 691	help
 692	  This driver support TS-4800 FPGA GPIO controllers.
 693
 694config GPIO_THUNDERX
 695	tristate "Cavium ThunderX/OCTEON-TX GPIO"
 696	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 697	depends on PCI_MSI
 698	select GPIOLIB_IRQCHIP
 699	select IRQ_DOMAIN_HIERARCHY
 700	select IRQ_FASTEOI_HIERARCHY_HANDLERS
 701	help
 702	  Say yes here to support the on-chip GPIO lines on the ThunderX
 703	  and OCTEON-TX families of SoCs.
 704
 705config GPIO_UNIPHIER
 706	tristate "UniPhier GPIO support"
 707	depends on ARCH_UNIPHIER || COMPILE_TEST
 708	depends on OF_GPIO
 709	select IRQ_DOMAIN_HIERARCHY
 710	help
 711	  Say yes here to support UniPhier GPIOs.
 712
 713config GPIO_VF610
 714	def_bool y
 715	depends on ARCH_MXC
 716	select GPIOLIB_IRQCHIP
 717	help
 718	  Say yes here to support i.MX or Vybrid vf610 GPIOs.
 719
 720config GPIO_VISCONTI
 721	tristate "Toshiba Visconti GPIO support"
 722	depends on ARCH_VISCONTI || COMPILE_TEST
 723	depends on OF_GPIO
 724	select GPIOLIB_IRQCHIP
 725	select GPIO_GENERIC
 726	select IRQ_DOMAIN_HIERARCHY
 727	help
 728	  Say yes here to support GPIO on Tohisba Visconti.
 729
 730config GPIO_WCD934X
 731	tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver"
 732	depends on MFD_WCD934X && OF_GPIO
 
 
 733	help
 734         This driver is to support GPIO block found on the Qualcomm Technologies
 735	 Inc WCD9340/WCD9341 Audio Codec.
 
 
 
 736
 737config GPIO_XGENE
 738	bool "APM X-Gene GPIO controller support"
 739	depends on ARM64 && OF_GPIO
 740	help
 741	  This driver is to support the GPIO block within the APM X-Gene SoC
 742	  platform's generic flash controller. The GPIO pins are muxed with
 743	  the generic flash controller's address and data pins. Say yes
 744	  here to enable the GFC GPIO functionality.
 745
 746config GPIO_XGENE_SB
 747	tristate "APM X-Gene GPIO standby controller support"
 748	depends on (ARCH_XGENE || COMPILE_TEST)
 749	select GPIO_GENERIC
 750	select GPIOLIB_IRQCHIP
 751	select IRQ_DOMAIN_HIERARCHY
 752	help
 753	  This driver supports the GPIO block within the APM X-Gene
 754	  Standby Domain. Say yes here to enable the GPIO functionality.
 755
 756config GPIO_XILINX
 757	tristate "Xilinx GPIO support"
 758	select GPIOLIB_IRQCHIP
 759	depends on OF_GPIO
 760	help
 761	  Say yes here to support the Xilinx FPGA GPIO device.
 762
 763config GPIO_XLP
 764	tristate "Cavium ThunderX2 GPIO support"
 765	depends on ARCH_THUNDER2 || COMPILE_TEST
 766	select GPIOLIB_IRQCHIP
 767	help
 768	  This driver provides support for GPIO interface on Cavium's ThunderX2
 769	  CN99XX SoCs (Originally from Netlogic XLP).
 
 
 770
 771	  If unsure, say N.
 772
 773config GPIO_XTENSA
 774	bool "Xtensa GPIO32 support"
 775	depends on XTENSA
 776	depends on HAVE_XTENSA_GPIO32
 777	depends on !SMP
 778	help
 779	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 780	  and EXPSTATE (output) ports.
 781
 782config GPIO_ZEVIO
 783	bool "LSI ZEVIO SoC memory mapped GPIOs"
 784	depends on ARM
 785	help
 786	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 787
 788config GPIO_ZYNQ
 789	tristate "Xilinx Zynq GPIO support"
 790	depends on ARCH_ZYNQ || ARCH_ZYNQMP
 791	select GPIOLIB_IRQCHIP
 792	help
 793	  Say yes here to support Xilinx Zynq GPIO controller.
 794
 795config GPIO_ZYNQMP_MODEPIN
 796	tristate "ZynqMP ps-mode pin GPIO configuration driver"
 797	depends on ZYNQMP_FIRMWARE
 798	default ZYNQMP_FIRMWARE
 799	help
 800	  Say yes here to support the ZynqMP ps-mode pin GPIO configuration
 801	  driver.
 802
 803	  This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE
 804	  is 4-bits boot mode pins. It sets and gets the status of
 805	  the ps-mode pin. Every pin can be configured as input/output.
 806
 807config GPIO_LOONGSON1
 808	tristate "Loongson1 GPIO support"
 809	depends on MACH_LOONGSON32
 810	select GPIO_GENERIC
 811	help
 812	  Say Y or M here to support GPIO on Loongson1 SoCs.
 813
 814config GPIO_AMD_FCH
 815	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 816	help
 817	  This option enables driver for GPIO on AMD's Fusion Controller Hub,
 818	  as found on G-series SOCs (e.g. GX-412TC).
 819
 820	  Note: This driver doesn't register itself automatically, as it
 821	  needs to be provided with platform-specific configuration.
 822	  (See e.g. CONFIG_PCENGINES_APU2.)
 823
 824config GPIO_MSC313
 825	bool "MStar MSC313 GPIO support"
 826	depends on ARCH_MSTARV7
 827	default ARCH_MSTARV7
 828	select GPIOLIB_IRQCHIP
 829	select IRQ_DOMAIN_HIERARCHY
 830	help
 831	  Say Y here to support the main GPIO block on MStar/SigmaStar
 832	  ARMv7-based SoCs.
 833
 834config GPIO_IDT3243X
 835	tristate "IDT 79RC3243X GPIO support"
 836	depends on MIKROTIK_RB532 || COMPILE_TEST
 837	select GPIO_GENERIC
 838	select GPIOLIB_IRQCHIP
 839	help
 840	  Select this option to enable GPIO driver for
 841	  IDT 79RC3243X-based devices like Mikrotik RB532.
 842
 843	  To compile this driver as a module, choose M here: the module will
 844	  be called gpio-idt3243x.
 845
 
 
 
 846endmenu
 847
 848menu "Port-mapped I/O GPIO drivers"
 849	depends on X86 && HAS_IOPORT # I/O space access
 850
 851config GPIO_VX855
 852	tristate "VIA VX855/VX875 GPIO"
 853	depends on PCI
 854	select MFD_CORE
 855	select MFD_VX855
 856	help
 857	  Support access to the VX855/VX875 GPIO lines through the GPIO library.
 858
 859	  This driver provides common support for accessing the device.
 860	  Additional drivers must be enabled in order to use the
 861	  functionality of the device.
 862
 863config GPIO_I8255
 864	tristate
 865	select GPIO_REGMAP
 866	help
 867	  Enables support for the i8255 interface library functions. The i8255
 868	  interface library provides functions to facilitate communication with
 869	  interfaces compatible with the venerable Intel 8255 Programmable
 870	  Peripheral Interface (PPI). The Intel 8255 PPI chip was first released
 871	  in the early 1970s but compatible interfaces are nowadays typically
 872	  found embedded in larger VLSI processing chips and FPGA components.
 873
 874	  If built as a module its name will be gpio-i8255.
 875
 876config GPIO_104_DIO_48E
 877	tristate "ACCES 104-DIO-48E GPIO support"
 878	depends on PC104
 879	select ISA_BUS_API
 880	select REGMAP_MMIO
 881	select REGMAP_IRQ
 882	select GPIOLIB_IRQCHIP
 883	select GPIO_I8255
 884	select I8254
 885	help
 886	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 887	  104-DIO-24E). The base port addresses for the devices may be
 888	  configured via the base module parameter. The interrupt line numbers
 889	  for the devices may be configured via the irq module parameter.
 890
 891config GPIO_104_IDIO_16
 892	tristate "ACCES 104-IDIO-16 GPIO support"
 893	depends on PC104
 894	select ISA_BUS_API
 895	select REGMAP_MMIO
 896	select GPIO_IDIO_16
 897	help
 898	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 899	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 900	  base port addresses for the devices may be configured via the base
 901	  module parameter. The interrupt line numbers for the devices may be
 902	  configured via the irq module parameter.
 903
 904config GPIO_104_IDI_48
 905	tristate "ACCES 104-IDI-48 GPIO support"
 906	depends on PC104
 907	select ISA_BUS_API
 908	select REGMAP_MMIO
 909	select REGMAP_IRQ
 910	select GPIOLIB_IRQCHIP
 911	select GPIO_REGMAP
 912	help
 913	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 914	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 915	  the devices may be configured via the base module parameter. The
 916	  interrupt line numbers for the devices may be configured via the irq
 917	  module parameter.
 918
 919config GPIO_F7188X
 920	tristate "Fintek and Nuvoton Super-I/O GPIO support"
 921	help
 922	  This option enables support for GPIOs found on Fintek Super-I/O
 923	  chips F71869, F71869A, F71882FG, F71889F and F81866.
 924	  As well as Nuvoton Super-I/O chip NCT6126D.
 925
 926	  To compile this driver as a module, choose M here: the module will
 927	  be called f7188x-gpio.
 928
 929config GPIO_GPIO_MM
 930	tristate "Diamond Systems GPIO-MM GPIO support"
 931	depends on PC104
 932	select ISA_BUS_API
 933	select REGMAP_MMIO
 934	select GPIO_I8255
 935	help
 936	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 937
 938	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 939	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 940	  support for these 48 channels of digital I/O.
 941
 942	  The base port addresses for the devices may be configured via the base
 943	  array module parameter.
 944
 945config GPIO_IT87
 946	tristate "IT87xx GPIO support"
 947	help
 948	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 949
 950	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 951	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 952	  well.
 953
 954	  To compile this driver as a module, choose M here: the module will
 955	  be called gpio_it87.
 956
 957config GPIO_SCH
 958	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 959	depends on (X86 || COMPILE_TEST) && ACPI
 960	depends on LPC_SCH
 961	select GPIOLIB_IRQCHIP
 962	help
 963	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
 964	  Intel Tunnel Creek processor, Intel Centerton processor or
 965	  Intel Quark X1000 SoC.
 966
 967	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 968	  powered by the core power rail and are turned off during sleep
 969	  modes (S3 and higher). The remaining four GPIOs are powered by
 970	  the Intel SCH suspend power supply. These GPIOs remain
 971	  active during S3. The suspend-powered GPIOs can be used to wake the
 972	  system from the Suspend-to-RAM state.
 973
 974	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
 975	  core power rail and 9 from suspend power supply.
 976
 977	  The Intel Centerton processor has a total of 30 GPIO pins.
 978	  Twenty-one are powered by the core power rail and 9 from the
 979	  suspend power supply.
 980
 981	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 982	  power well and 6 from the suspend power well.
 983
 984config GPIO_SCH311X
 985	tristate "SMSC SCH311x SuperI/O GPIO"
 986	help
 987	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 988	  SCH3116 "Super I/O" chipsets.
 989
 990	  To compile this driver as a module, choose M here: the module will
 991	  be called gpio-sch311x.
 992
 993config GPIO_TS5500
 994	tristate "TS-5500 DIO blocks and compatibles"
 995	depends on TS5500 || COMPILE_TEST
 996	help
 997	  This driver supports Digital I/O exposed by pin blocks found on some
 998	  Technologic Systems platforms. It includes, but is not limited to, 3
 999	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
1000	  LCD port.
1001
1002config GPIO_WINBOND
1003	tristate "Winbond Super I/O GPIO support"
1004	select ISA_BUS_API
1005	help
1006	  This option enables support for GPIOs found on Winbond Super I/O
1007	  chips.
1008	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
1009	  supported.
1010
1011	  You will need to provide a module parameter "gpios", or a
1012	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
1013	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
1014
1015	  To compile this driver as a module, choose M here: the module will
1016	  be called gpio-winbond.
1017
1018config GPIO_WS16C48
1019	tristate "WinSystems WS16C48 GPIO support"
1020	select ISA_BUS_API
1021	select REGMAP_IRQ
1022	select REGMAP_MMIO
1023	select GPIOLIB_IRQCHIP
1024	select GPIO_REGMAP
1025	help
1026	  Enables GPIO support for the WinSystems WS16C48. The base port
1027	  addresses for the devices may be configured via the base module
1028	  parameter. The interrupt line numbers for the devices may be
1029	  configured via the irq module parameter.
1030
1031endmenu
1032
1033menu "I2C GPIO expanders"
1034	depends on I2C
1035
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1036config GPIO_ADNP
1037	tristate "Avionic Design N-bit GPIO expander"
1038	depends on OF_GPIO
1039	select GPIOLIB_IRQCHIP
1040	help
1041	  This option enables support for N GPIOs found on Avionic Design
1042	  I2C GPIO expanders. The register space will be extended by powers
1043	  of two, so the controller will need to accommodate for that. For
1044	  example: if a controller provides 48 pins, 6 registers will be
1045	  enough to represent all pins, but the driver will assume a
1046	  register layout for 64 pins (8 registers).
1047
1048config GPIO_FXL6408
1049	tristate "FXL6408 I2C GPIO expander"
1050	select GPIO_REGMAP
1051	select REGMAP_I2C
1052	help
1053	  GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander.
1054
1055	  To compile this driver as a module, choose M here: the module will
1056	  be called gpio-fxl6408.
1057
1058config GPIO_DS4520
1059	tristate "DS4520 I2C GPIO expander"
1060	select REGMAP_I2C
1061	select GPIO_REGMAP
1062	help
1063	  GPIO driver for ADI DS4520 I2C-based GPIO expander.
1064	  Say yes here to enable the GPIO driver for the ADI DS4520 chip.
1065
1066	  To compile this driver as a module, choose M here: the module will
1067	  be called gpio-ds4520.
1068
1069config GPIO_GW_PLD
1070	tristate "Gateworks PLD GPIO Expander"
1071	depends on OF_GPIO
1072	help
1073	  Say yes here to provide access to the Gateworks I2C PLD GPIO
1074	  Expander. This is used at least on the Cambria GW2358-4.
1075
1076config GPIO_MAX7300
1077	tristate "Maxim MAX7300 GPIO expander"
1078	select GPIO_MAX730X
1079	help
1080	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
1081
1082config GPIO_MAX732X
1083	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
1084	help
1085	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
1086	  Port Expanders. Each IO port on these chips has a fixed role of
1087	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
1088	  Input and Output (designed by 'P'). The combinations are listed
1089	  below:
1090
1091	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
1092	                max7322 (4I4O), max7323 (4P4O)
1093
1094	  16 bits:      max7324 (8I8O), max7325 (8P8O),
1095	                max7326 (4I12O), max7327 (4P12O)
1096
1097	  Board setup code must specify the model to use, and the start
1098	  number for these GPIOs.
1099
1100config GPIO_MAX732X_IRQ
1101	bool "Interrupt controller support for MAX732x"
1102	depends on GPIO_MAX732X=y
1103	select GPIOLIB_IRQCHIP
1104	help
1105	  Say yes here to enable the max732x to be used as an interrupt
1106	  controller. It requires the driver to be built in the kernel.
1107
 
 
 
 
 
 
1108config GPIO_PCA953X
1109	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
1110	select REGMAP_I2C
1111	help
1112	  Say yes here to provide access to several register-oriented
1113	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
1114	  models include:
1115
1116	  4 bits:       pca9536, pca9537
1117
1118	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
1119	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
1120
1121	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
1122	                tca6416
1123
1124	  24 bits:      tca6424
1125
1126	  40 bits:      pca9505, pca9698
1127
1128config GPIO_PCA953X_IRQ
1129	bool "Interrupt controller support for PCA953x"
1130	depends on GPIO_PCA953X
1131	select GPIOLIB_IRQCHIP
1132	help
1133	  Say yes here to enable the pca953x to be used as an interrupt
1134	  controller.
1135
1136config GPIO_PCA9570
1137	tristate "PCA9570 4-Bit I2C GPO expander"
1138	help
1139	  Say yes here to enable the GPO driver for the NXP PCA9570 chip.
1140
1141	  To compile this driver as a module, choose M here: the module will
1142	  be called gpio-pca9570.
1143
1144config GPIO_PCF857X
1145	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
1146	select GPIOLIB_IRQCHIP
1147	select IRQ_DOMAIN
1148	help
1149	  Say yes here to provide access to most "quasi-bidirectional" I2C
1150	  GPIO expanders used for additional digital outputs or inputs.
1151	  Most of these parts are from NXP, though TI is a second source for
1152	  some of them.  Compatible models include:
1153
1154	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
1155	            pca9670, pca9672, pca9674, pca9674a,
1156	            max7328, max7329
1157
1158	  16 bits:  pcf8575, pcf8575c, pca8575,
1159	            pca9671, pca9673, pca9675
1160
1161	  Your board setup code will need to declare the expanders in
1162	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
1163	  can then be used from drivers and other kernel code, just like
1164	  other GPIOs, but only accessible from task contexts.
1165
1166	  This driver provides an in-kernel interface to those GPIOs using
1167	  platform-neutral GPIO calls.
1168
1169config GPIO_TPIC2810
1170	tristate "TPIC2810 8-Bit I2C GPO expander"
1171	help
1172	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
1173
1174	  To compile this driver as a module, choose M here: the module will
1175	  be called gpio-tpic2810.
1176
1177config GPIO_TS4900
1178	tristate "Technologic Systems FPGA I2C GPIO"
1179	depends on SOC_IMX6 || COMPILE_TEST
1180	select REGMAP_I2C
1181	help
1182	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
1183	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
1184
1185endmenu
1186
1187menu "MFD GPIO expanders"
1188
1189config GPIO_ADP5520
1190	tristate "GPIO Support for ADP5520 PMIC"
1191	depends on PMIC_ADP5520
1192	help
1193	  This option enables support for on-chip GPIO found
1194	  on Analog Devices ADP5520 PMICs.
1195
1196config GPIO_ALTERA_A10SR
1197	tristate "Altera Arria10 System Resource GPIO"
1198	depends on MFD_ALTERA_A10SR
1199	help
1200	  Driver for Arria10 Development Kit GPIO expansion which
1201	  includes reads of pushbuttons and DIP switches as well
1202	  as writes to LEDs.
1203
1204config GPIO_ARIZONA
1205	tristate "Wolfson Microelectronics Arizona class devices"
1206	depends on MFD_ARIZONA
1207	help
1208	  Support for GPIOs on Wolfson Arizona class devices.
1209
1210config GPIO_BD71815
1211	tristate "ROHM BD71815 PMIC GPIO support"
1212	depends on MFD_ROHM_BD71828
1213	help
1214	  Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs
1215	  available on the ROHM PMIC.
1216
1217	  This driver can also be built as a module. If so, the module
1218	  will be called gpio-bd71815.
1219
1220config GPIO_BD71828
1221	tristate "ROHM BD71828 GPIO support"
1222	depends on MFD_ROHM_BD71828
1223	help
1224	  Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs
1225	  available on the ROHM PMIC in total. The GPIOs are limited to
1226	  outputs only and pins must be configured to GPIO outputs by
1227	  OTP. Enable this only if you want to use these pins as outputs.
1228
1229	  This driver can also be built as a module. If so, the module
1230	  will be called gpio-bd71828.
1231
1232config GPIO_BD9571MWV
1233	tristate "ROHM BD9571 GPIO support"
1234	depends on MFD_BD9571MWV
1235	help
1236	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1237	  available on the ROHM PMIC in total, both of which can also
1238	  generate interrupts.
1239
1240	  This driver can also be built as a module. If so, the module
1241	  will be called gpio-bd9571mwv.
1242
1243config GPIO_CRYSTAL_COVE
1244	tristate "GPIO support for Crystal Cove PMIC"
1245	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1246	select GPIOLIB_IRQCHIP
1247	help
1248	  Support for GPIO pins on Crystal Cove PMIC.
1249
1250	  Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC
1251	  inside.
1252
1253	  This driver can also be built as a module. If so, the module will be
1254	  called gpio-crystalcove.
1255
1256config GPIO_CS5535
1257	tristate "AMD CS5535/CS5536 GPIO support"
1258	depends on X86 || MIPS || COMPILE_TEST
1259	depends on MFD_CS5535
1260	help
1261	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1262	  can be used for quite a number of things.  The CS5535/6 is found on
1263	  AMD Geode and Lemote Yeeloong devices.
1264
1265	  If unsure, say N.
1266
1267config GPIO_DA9052
1268	tristate "Dialog DA9052 GPIO"
1269	depends on PMIC_DA9052
1270	help
1271	  Say yes here to enable the GPIO driver for the DA9052 chip.
1272
1273config GPIO_DA9055
1274	tristate "Dialog Semiconductor DA9055 GPIO"
1275	depends on MFD_DA9055
1276	help
1277	  Say yes here to enable the GPIO driver for the DA9055 chip.
1278
1279	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1280	  be controlled by this driver.
1281
1282	  If driver is built as a module it will be called gpio-da9055.
1283
1284config GPIO_DLN2
1285	tristate "Diolan DLN2 GPIO support"
1286	depends on MFD_DLN2
1287	select GPIOLIB_IRQCHIP
1288
1289	help
1290	  Select this option to enable GPIO driver for the Diolan DLN2
1291	  board.
1292
1293	  This driver can also be built as a module. If so, the module
1294	  will be called gpio-dln2.
1295
1296config HTC_EGPIO
1297	bool "HTC EGPIO support"
1298	depends on ARM
1299	help
1300	  This driver supports the CPLD egpio chip present on
1301	  several HTC phones.  It provides basic support for input
1302	  pins, output pins, and IRQs.
1303
1304config GPIO_ELKHARTLAKE
1305	tristate "Intel Elkhart Lake PSE GPIO support"
1306	depends on X86 || COMPILE_TEST
1307	select GPIO_TANGIER
1308	help
1309	  Select this option to enable GPIO support for Intel Elkhart Lake
1310	  PSE GPIO IP.
1311
1312	  To compile this driver as a module, choose M here: the module will
1313	  be called gpio-elkhartlake.
1314
1315config GPIO_JANZ_TTL
1316	tristate "Janz VMOD-TTL Digital IO Module"
1317	depends on MFD_JANZ_CMODIO
1318	help
1319	  This enables support for the Janz VMOD-TTL Digital IO module.
1320	  This driver provides support for driving the pins in output
1321	  mode only. Input mode is not supported.
1322
1323config GPIO_KEMPLD
1324	tristate "Kontron ETX / COMexpress GPIO"
1325	depends on MFD_KEMPLD
1326	help
1327	  This enables support for the PLD GPIO interface on some Kontron ETX
1328	  and COMexpress (ETXexpress) modules.
1329
1330	  This driver can also be built as a module. If so, the module will be
1331	  called gpio-kempld.
1332
1333config GPIO_LJCA
1334	tristate "INTEL La Jolla Cove Adapter GPIO support"
1335	depends on USB_LJCA
1336	select GPIOLIB_IRQCHIP
1337	default USB_LJCA
1338	help
1339	  Select this option to enable GPIO driver for the INTEL
1340	  La Jolla Cove Adapter (LJCA) board.
1341
1342	  This driver can also be built as a module. If so, the module
1343	  will be called gpio-ljca.
1344
1345config GPIO_LP3943
1346	tristate "TI/National Semiconductor LP3943 GPIO expander"
1347	depends on MFD_LP3943
1348	help
1349	  GPIO driver for LP3943 MFD.
1350	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1351	  Open drain outputs are required for this usage.
1352
1353config GPIO_LP873X
1354	tristate "TI LP873X GPO"
1355	depends on MFD_TI_LP873X
1356	help
1357	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1358	  on LP873X PMICs.
1359
1360	  This driver can also be built as a module. If so, the module will be
1361	  called gpio-lp873x.
1362
1363config GPIO_LP87565
1364	tristate "TI LP87565 GPIO"
1365	depends on MFD_TI_LP87565
1366	help
1367	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1368	  on LP87565 PMICs.
1369
1370	  This driver can also be built as a module. If so, the module will be
1371	  called gpio-lp87565.
1372
1373config GPIO_MADERA
1374	tristate "Cirrus Logic Madera class codecs"
1375	depends on PINCTRL_MADERA
1376	help
1377	  Support for GPIOs on Cirrus Logic Madera class codecs.
1378
1379config GPIO_MAX77620
1380	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1381	depends on MFD_MAX77620
1382	select GPIOLIB_IRQCHIP
1383	help
1384	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1385	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1386	  driver also provides interrupt support for each of the GPIOs.
1387	  Say yes here to enable the max77620 to be used as GPIO controller.
1388
1389config GPIO_MAX77650
1390	tristate "Maxim MAX77650/77651 GPIO support"
1391	depends on MFD_MAX77650
1392	help
1393	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1394	  These chips have a single pin that can be configured as GPIO.
1395
 
 
 
 
 
 
 
1396config GPIO_PALMAS
1397	bool "TI PALMAS series PMICs GPIO"
1398	depends on MFD_PALMAS
1399	help
1400	  Select this option to enable GPIO driver for the TI PALMAS
1401	  series chip family.
1402
1403config GPIO_PMIC_EIC_SPRD
1404	tristate "Spreadtrum PMIC EIC support"
1405	depends on MFD_SC27XX_PMIC || COMPILE_TEST
1406	depends on OF_GPIO
1407	select GPIOLIB_IRQCHIP
1408	help
1409	  Say yes here to support Spreadtrum PMIC EIC device.
1410
1411config GPIO_RC5T583
1412	bool "RICOH RC5T583 GPIO"
1413	depends on MFD_RC5T583
1414	help
1415	  Select this option to enable GPIO driver for the Ricoh RC5T583
1416	  chip family.
1417	  This driver provides the support for driving/reading the GPIO pins
1418	  of RC5T583 device through standard GPIO library.
1419
1420config GPIO_SL28CPLD
1421	tristate "Kontron sl28cpld GPIO support"
1422	depends on MFD_SL28CPLD || COMPILE_TEST
1423	select GPIO_REGMAP
1424	select GPIOLIB_IRQCHIP
1425	select REGMAP_IRQ
1426	help
1427	  This enables support for the GPIOs found on the Kontron sl28 CPLD.
1428
1429	  This driver can also be built as a module. If so, the module will be
1430	  called gpio-sl28cpld.
1431
1432config GPIO_STMPE
1433	bool "STMPE GPIOs"
1434	depends on MFD_STMPE
1435	depends on OF_GPIO
1436	select GPIOLIB_IRQCHIP
1437	help
1438	  This enables support for the GPIOs found on the STMPE I/O
1439	  Expanders.
1440
1441config GPIO_TC3589X
1442	bool "TC3589X GPIOs"
1443	depends on MFD_TC3589X
1444	depends on OF_GPIO
1445	select GPIOLIB_IRQCHIP
1446	help
1447	  This enables support for the GPIOs found on the TC3589X
1448	  I/O Expander.
1449
1450config GPIO_TIMBERDALE
1451	bool "Support for timberdale GPIO IP"
1452	depends on MFD_TIMBERDALE
1453	help
1454	Add support for the GPIO IP in the timberdale FPGA.
1455
1456config GPIO_TN48M_CPLD
1457	tristate "Delta Networks TN48M switch CPLD GPIO driver"
1458	depends on MFD_TN48M_CPLD
1459	select GPIO_REGMAP
1460	help
1461	  This enables support for the GPIOs found on the Delta
1462	  Networks TN48M switch Lattice CPLD. It provides 12 pins in total,
1463	  they are input-only or output-only type.
1464
1465	  This driver can also be built as a module. If so, the
1466	  module will be called gpio-tn48m.
1467
1468config GPIO_TPS65086
1469	tristate "TI TPS65086 GPO"
1470	depends on MFD_TPS65086
1471	help
1472	  This driver supports the GPO on TI TPS65086x PMICs.
1473
1474config GPIO_TPS65218
1475	tristate "TPS65218 GPIO"
1476	depends on MFD_TPS65218
1477	help
1478	  Select this option to enable GPIO driver for the TPS65218
1479	  chip family.
1480
1481config GPIO_TPS65219
1482	tristate "TPS65219 GPIO"
1483	depends on MFD_TPS65219
1484	default MFD_TPS65219
1485	help
1486	  Select this option to enable GPIO driver for the TPS65219 chip
1487	  family.
1488	  GPIO0 is statically configured as either input or output prior to
1489	  Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting
1490	  is statically configured by NVM. GPIO0 can't be used as a generic
1491	  GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when
1492	  MULTI_DEVICE_EN=1.
1493
1494	  This driver can also be built as a module. If so, the module will be
1495	  called gpio_tps65219.
1496
1497config GPIO_TPS6586X
1498	bool "TPS6586X GPIO"
1499	depends on MFD_TPS6586X
1500	help
1501	  Select this option to enable GPIO driver for the TPS6586X
1502	  chip family.
1503
1504config GPIO_TPS65910
1505	bool "TPS65910 GPIO"
1506	depends on MFD_TPS65910
1507	help
1508	  Select this option to enable GPIO driver for the TPS65910
1509	  chip family.
1510
1511config GPIO_TPS65912
1512	tristate "TI TPS65912 GPIO"
1513	depends on MFD_TPS65912
1514	help
1515	  This driver supports TPS65912 GPIO chip.
1516
1517config GPIO_TPS68470
1518	tristate "TPS68470 GPIO"
1519	depends on INTEL_SKL_INT3472
1520	help
1521	  Select this option to enable GPIO driver for the TPS68470
1522	  chip family.
1523	  There are 7 GPIOs and few sensor-related GPIOs supported
1524	  by the TPS68470. While the 7 GPIOs can be configured as
1525	  input or output as appropriate, the sensor related GPIOs
1526	  are "output only" GPIOs.
1527
 
 
 
 
1528config GPIO_TQMX86
1529	tristate "TQ-Systems QTMX86 GPIO"
1530	depends on MFD_TQMX86 || COMPILE_TEST
1531	depends on HAS_IOPORT_MAP
1532	select GPIOLIB_IRQCHIP
1533	help
1534	  This driver supports GPIO on the TQMX86 IO controller.
1535
1536config GPIO_TWL4030
1537	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1538	depends on TWL4030_CORE
1539	help
1540	  Say yes here to access the GPIO signals of various multi-function
1541	  power management chips from Texas Instruments.
1542
1543config GPIO_TWL6040
1544	tristate "TWL6040 GPO"
1545	depends on TWL6040_CORE
1546	help
1547	  Say yes here to access the GPO signals of twl6040
1548	  audio chip from Texas Instruments.
1549
 
 
 
 
 
 
 
1550config GPIO_WHISKEY_COVE
1551	tristate "GPIO support for Whiskey Cove PMIC"
1552	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1553	select GPIOLIB_IRQCHIP
1554	help
1555	  Support for GPIO pins on Whiskey Cove PMIC.
1556
1557	  Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC
1558	  inside.
1559
1560	  This driver can also be built as a module. If so, the module will be
1561	  called gpio-wcove.
1562
1563config GPIO_WM831X
1564	tristate "WM831x GPIOs"
1565	depends on MFD_WM831X
1566	help
1567	  Say yes here to access the GPIO signals of WM831x power management
1568	  chips from Wolfson Microelectronics.
1569
1570config GPIO_WM8350
1571	tristate "WM8350 GPIOs"
1572	depends on MFD_WM8350
1573	help
1574	  Say yes here to access the GPIO signals of WM8350 power management
1575	  chips from Wolfson Microelectronics.
1576
1577config GPIO_WM8994
1578	tristate "WM8994 GPIOs"
1579	depends on MFD_WM8994
1580	help
1581	  Say yes here to access the GPIO signals of WM8994 audio hub
1582	  CODECs from Wolfson Microelectronics.
1583
1584endmenu
1585
1586menu "PCI GPIO expanders"
1587	depends on PCI
1588
1589config GPIO_AMD8111
1590	tristate "AMD 8111 GPIO driver"
1591	depends on X86 || COMPILE_TEST
1592	depends on HAS_IOPORT_MAP
1593	help
1594	  The AMD 8111 southbridge contains 32 GPIO pins which can be used.
1595
1596	  Note that usually system firmware/ACPI handles GPIO pins on their
1597	  own and users might easily break their systems with uncareful usage
1598	  of this driver!
1599
1600	  If unsure, say N
1601
1602config GPIO_BT8XX
1603	tristate "BT8XX GPIO abuser"
1604	depends on VIDEO_BT848=n
1605	help
1606	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1607	  as a cheap PCI GPIO card.
1608
1609	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1610
1611	  The card needs to be physically altered for using it as a
1612	  GPIO card. For more information on how to build a GPIO card
1613	  from a BT8xx TV card, see the documentation file at
1614	  Documentation/driver-api/gpio/bt8xxgpio.rst
1615
1616	  If unsure, say N.
1617
 
 
 
 
 
 
 
1618config GPIO_MERRIFIELD
1619	tristate "Intel Merrifield GPIO support"
1620	depends on X86_INTEL_MID
1621	select GPIO_TANGIER
1622	help
1623	  Say Y here to support Intel Merrifield GPIO.
1624
1625config GPIO_MLXBF
1626	tristate "Mellanox BlueField SoC GPIO"
1627	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1628	select GPIO_GENERIC
1629	help
1630	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1631
1632config GPIO_MLXBF2
1633	tristate "Mellanox BlueField 2 SoC GPIO"
1634	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1635	select GPIO_GENERIC
1636	select GPIOLIB_IRQCHIP
1637	help
1638	  Say Y here if you want GPIO support on Mellanox BlueField 2 SoC.
1639
1640config GPIO_MLXBF3
1641	tristate "Mellanox BlueField 3 SoC GPIO"
1642	depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST
1643	select GPIO_GENERIC
1644	select GPIOLIB_IRQCHIP
1645	help
1646	  Say Y if you want GPIO support on Mellanox BlueField 3 SoC.
1647	  This GPIO controller supports interrupt handling and enables the
1648	  manipulation of certain GPIO pins.
1649	  This controller should be used in parallel with pinctrl-mlxbf3 to
1650	  control the desired GPIOs.
1651	  This driver can also be built as a module called mlxbf3-gpio.
1652
1653config GPIO_ML_IOH
1654	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1655	depends on X86 || COMPILE_TEST
1656	select GENERIC_IRQ_CHIP
1657	help
1658	  ML7213 is companion chip for Intel Atom E6xx series.
1659	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output
1660	  Hub) which is for IVI (In-Vehicle Infotainment) use.
1661	  This driver can access the IOH's GPIO device.
1662
1663config GPIO_PCH
1664	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO"
1665	depends on X86_32 || MIPS || COMPILE_TEST
1666	select GENERIC_IRQ_CHIP
1667	help
1668	  This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff,
1669	  which is an IOH (Input/Output Hub) for x86 embedded processor.
1670	  This driver can access PCH GPIO device.
1671
1672	  This driver also can be used for LAPIS Semiconductor IOH (Input/
1673	  Output Hub), ML7223 and ML7831.
1674	  ML7223 IOH is for MP (Media Phone) use.
1675	  ML7831 IOH is for general purpose use.
1676	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1677	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1678
1679config GPIO_PCI_IDIO_16
1680	tristate "ACCES PCI-IDIO-16 GPIO support"
1681	select REGMAP_MMIO
1682	select GPIO_IDIO_16
1683	help
1684	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1685	  generated when any of the inputs change state (low to high or high to
1686	  low). Input filter control is not supported by this driver, and the
1687	  input filters are deactivated by this driver.
1688
1689config GPIO_PCIE_IDIO_24
1690	tristate "ACCES PCIe-IDIO-24 GPIO support"
1691	select REGMAP_IRQ
1692	select REGMAP_MMIO
1693	select GPIOLIB_IRQCHIP
1694	select GPIO_REGMAP
1695	help
1696	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1697	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1698	  when any of the inputs change state (low to high or high to low).
1699	  Input filter control is not supported by this driver, and the input
1700	  filters are deactivated by this driver.
1701
1702config GPIO_RDC321X
1703	tristate "RDC R-321x GPIO support"
1704	select MFD_CORE
1705	select MFD_RDC321X
1706	help
1707	  Support for the RDC R321x SoC GPIOs over southbridge
1708	  PCI configuration space.
1709
1710config GPIO_SODAVILLE
1711	bool "Intel Sodaville GPIO support"
1712	depends on X86 && OF
1713	select GPIO_GENERIC
1714	select GENERIC_IRQ_CHIP
1715	help
1716	  Say Y here to support Intel Sodaville GPIO.
1717
1718endmenu
1719
1720menu "SPI GPIO expanders"
1721	depends on SPI_MASTER
1722
1723config GPIO_74X164
1724	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1725	depends on OF_GPIO
1726	help
1727	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1728	  shift registers. This driver can be used to provide access
1729	  to more GPIO outputs.
1730
1731config GPIO_MAX3191X
1732	tristate "Maxim MAX3191x industrial serializer"
1733	select CRC8
1734	help
1735	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1736	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1737	  chip to make 8 digital 24V inputs available via SPI.  Supports
1738	  CRC checksums to guard against electromagnetic interference,
1739	  as well as undervoltage and overtemperature detection.
1740
1741config GPIO_MAX7301
1742	tristate "Maxim MAX7301 GPIO expander"
1743	select GPIO_MAX730X
1744	help
1745	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1746
1747config GPIO_MC33880
1748	tristate "Freescale MC33880 high-side/low-side switch"
1749	help
1750	  SPI driver for Freescale MC33880 high-side/low-side switch.
1751	  This provides GPIO interface supporting inputs and outputs.
1752
1753config GPIO_PISOSR
1754	tristate "Generic parallel-in/serial-out shift register"
1755	help
1756	  GPIO driver for SPI compatible parallel-in/serial-out shift
1757	  registers. These are input only devices.
1758
1759config GPIO_XRA1403
1760	tristate "EXAR XRA1403 16-bit GPIO expander"
1761	select REGMAP_SPI
1762	help
1763	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1764
1765config GPIO_MOXTET
1766	tristate "Turris Mox Moxtet bus GPIO expander"
1767	depends on MOXTET
1768	help
1769	  Say yes here if you are building for the Turris Mox router.
1770	  This is the driver needed for configuring the GPIOs via the Moxtet
1771	  bus. For example the Mox module with SFP cage needs this driver
1772	  so that phylink can use corresponding GPIOs.
1773
1774endmenu
1775
1776menu "USB GPIO expanders"
1777	depends on USB
1778
1779config GPIO_VIPERBOARD
1780	tristate "Viperboard GPIO a & b support"
1781	depends on MFD_VIPERBOARD
1782	help
1783	  Say yes here to access the GPIO signals of Nano River
1784	  Technologies Viperboard. There are two GPIO chips on the
1785	  board: gpioa and gpiob.
1786	  See viperboard API specification and Nano
1787	  River Tech's viperboard.h for detailed meaning
1788	  of the module parameters.
1789
1790endmenu
1791
1792menu "Virtual GPIO drivers"
1793
1794config GPIO_AGGREGATOR
1795	tristate "GPIO Aggregator"
1796	help
1797	  Say yes here to enable the GPIO Aggregator, which provides a way to
1798	  aggregate existing GPIO lines into a new virtual GPIO chip.
1799	  This can serve the following purposes:
1800	    - Assign permissions for a collection of GPIO lines to a user,
1801	    - Export a collection of GPIO lines to a virtual machine,
1802	    - Provide a generic driver for a GPIO-operated device in an
1803	      industrial control context, to be operated from userspace using
1804	      the GPIO chardev interface.
1805
1806config GPIO_LATCH
1807	tristate "GPIO latch driver"
1808	help
1809	  Say yes here to enable a driver for GPIO multiplexers based on latches
1810	  connected to other GPIOs.
1811
1812config GPIO_MOCKUP
1813	tristate "GPIO Testing Driver (DEPRECATED)"
1814	select IRQ_SIM
1815	help
1816	  This module is DEPRECATED. Please consider using gpio-sim instead.
1817
1818	  This enables GPIO Testing driver, which provides a way to test GPIO
1819	  subsystem through sysfs (or char device) and debugfs.
 
1820	  User could use it through the script in
1821	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1822	  it.
1823
1824config GPIO_VIRTIO
1825	tristate "VirtIO GPIO support"
1826	depends on VIRTIO
1827	select GPIOLIB_IRQCHIP
1828	help
1829	  Say Y here to enable guest support for virtio-based GPIO controllers.
1830
1831	  These virtual GPIOs can be routed to real GPIOs or attached to
1832	  simulators on the host (like QEMU).
1833
1834config GPIO_SIM
1835	tristate "GPIO Simulator Module"
1836	select IRQ_SIM
1837	select CONFIGFS_FS
1838	help
1839	  This enables the GPIO simulator - a configfs-based GPIO testing
1840	  driver.
1841
1842endmenu
1843
1844endif