1#
   2# GPIO infrastructure and drivers
   3#
   4
   5config ARCH_HAVE_CUSTOM_GPIO_H
   6	bool
   7	help
   8	  Selecting this config option from the architecture Kconfig allows
   9	  the architecture to provide a custom asm/gpio.h implementation
  10	  overriding the default implementations.  New uses of this are
  11	  strongly discouraged.
  12
  13config ARCH_WANT_OPTIONAL_GPIOLIB
  14	bool
  15	help
  16	  Select this config option from the architecture Kconfig, if
  17	  it is possible to use gpiolib on the architecture, but let the
  18	  user decide whether to actually build it or not.
  19	  Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does
  20	  not depend on GPIOs being available, but rather let the user
  21	  decide whether he needs it or not.
  22
  23config ARCH_REQUIRE_GPIOLIB
  24	bool
  25	select GPIOLIB
  26	help
  27	  Platforms select gpiolib if they use this infrastructure
  28	  for all their GPIOs, usually starting with ones integrated
  29	  into SOC processors.
  30	  Selecting this from the architecture code will cause the gpiolib
  31	  code to always get built in.
  32
  33
  34menuconfig GPIOLIB
  35	bool "GPIO Support"
  36	depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
  37	help
  38	  This enables GPIO support through the generic GPIO library.
  39	  You only need to enable this, if you also want to enable
  40	  one or more of the GPIO drivers below.
  41
  42	  If unsure, say N.
  43
  44if GPIOLIB
  45
  46config GPIO_DEVRES
  47	def_bool y
  48	depends on HAS_IOMEM
 
 
 
 
 
 
 
 
  49
  50config OF_GPIO
  51	def_bool y
  52	depends on OF
 
  53
  54config GPIO_ACPI
  55	def_bool y
  56	depends on ACPI
  57
  58config GPIOLIB_IRQCHIP
  59	select IRQ_DOMAIN
  60	bool
  61
  62config DEBUG_GPIO
  63	bool "Debug GPIO calls"
  64	depends on DEBUG_KERNEL
  65	help
  66	  Say Y here to add some extra checks and diagnostics to GPIO calls.
  67	  These checks help ensure that GPIOs have been properly initialized
  68	  before they are used, and that sleeping calls are not made from
  69	  non-sleeping contexts.  They can make bitbanged serial protocols
  70	  slower.  The diagnostics help catch the type of setup errors
  71	  that are most common when setting up new platforms or boards.
  72
  73config GPIO_SYSFS
  74	bool "/sys/class/gpio/... (sysfs interface)"
  75	depends on SYSFS
  76	help
  77	  Say Y here to add a sysfs interface for GPIOs.
  78
  79	  This is mostly useful to work around omissions in a system's
  80	  kernel support.  Those are common in custom and semicustom
  81	  hardware assembled using standard kernels with a minimum of
  82	  custom patches.  In those cases, userspace code may import
  83	  a given GPIO from the kernel, if no kernel driver requested it.
  84
  85	  Kernel drivers may also request that a particular GPIO be
  86	  exported to userspace; this can be useful when debugging.
 
 
  87
  88config GPIO_GENERIC
 
  89	tristate
  90
  91# put drivers in the right section, in alphabetical order
  92
  93# This symbol is selected by both I2C and SPI expanders
  94config GPIO_MAX730X
  95	tristate
  96
  97menu "Memory mapped GPIO drivers"
 
  98
  99config GPIO_74XX_MMIO
 100	tristate "GPIO driver for 74xx-ICs with MMIO access"
 101	depends on OF_GPIO
 102	select GPIO_GENERIC
 103	help
 104	  Say yes here to support GPIO functionality for 74xx-compatible ICs
 105	  with MMIO access. Compatible models include:
 106	    1 bit:	741G125 (Input), 741G74 (Output)
 107	    2 bits:	742G125 (Input), 7474 (Output)
 108	    4 bits:	74125 (Input), 74175 (Output)
 109	    6 bits:	74365 (Input), 74174 (Output)
 110	    8 bits:	74244 (Input), 74273 (Output)
 111	    16 bits:	741624 (Input), 7416374 (Output)
 112
 113config GPIO_ALTERA
 114	tristate "Altera GPIO"
 115	depends on OF_GPIO
 116	select GPIOLIB_IRQCHIP
 117	help
 118	  Say Y or M here to build support for the Altera PIO device.
 119
 120	  If driver is built as a module it will be called gpio-altera.
 121
 122config GPIO_AMDPT
 123	tristate "AMD Promontory GPIO support"
 124	depends on ACPI
 
 125	help
 126	  driver for GPIO functionality on Promontory IOHub
 127	  Require ACPI ASL code to enumerate as a platform device.
 128
 
 
 
 
 
 
 
 129config GPIO_ATH79
 130	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 131	default y if ATH79
 132	depends on ATH79 || COMPILE_TEST
 133	select GPIO_GENERIC
 134	select GPIOLIB_IRQCHIP
 135	help
 136	  Select this option to enable GPIO driver for
 137	  Atheros AR71XX/AR724X/AR913X SoC devices.
 138
 
 
 
 
 
 
 
 
 
 
 
 139config GPIO_BCM_KONA
 140	bool "Broadcom Kona GPIO"
 141	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 142	help
 143	  Turn on GPIO support for Broadcom "Kona" chips.
 144
 145config GPIO_BRCMSTB
 146	tristate "BRCMSTB GPIO support"
 147	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 148	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 149	select GPIO_GENERIC
 150	select GPIOLIB_IRQCHIP
 151	help
 152	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 153
 
 
 
 
 
 
 
 
 154config GPIO_CLPS711X
 155	tristate "CLPS711X GPIO support"
 156	depends on ARCH_CLPS711X || COMPILE_TEST
 157	select GPIO_GENERIC
 158	help
 159	  Say yes here to support GPIO on CLPS711X SoCs.
 160
 161config GPIO_DAVINCI
 162	bool "TI Davinci/Keystone GPIO support"
 163	default y if ARCH_DAVINCI
 164	depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE)
 165	help
 166	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 167
 168config GPIO_DWAPB
 169	tristate "Synopsys DesignWare APB GPIO driver"
 170	select GPIO_GENERIC
 171	select GENERIC_IRQ_CHIP
 172	help
 173	  Say Y or M here to build support for the Synopsys DesignWare APB
 174	  GPIO block.
 175
 
 
 
 
 
 
 
 
 176config GPIO_EM
 177	tristate "Emma Mobile GPIO"
 178	depends on ARM && OF_GPIO
 179	help
 180	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 181
 182config GPIO_EP93XX
 183	def_bool y
 184	depends on ARCH_EP93XX
 185	select GPIO_GENERIC
 186
 187config GPIO_ETRAXFS
 188	bool "Axis ETRAX FS General I/O"
 189	depends on CRIS || COMPILE_TEST
 190	depends on OF
 191	select GPIO_GENERIC
 192	select GPIOLIB_IRQCHIP
 
 
 
 
 193	help
 194	  Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.
 
 195
 196config GPIO_GE_FPGA
 197	bool "GE FPGA based GPIO"
 198	depends on GE_FPGA
 199	select GPIO_GENERIC
 200	help
 201	  Support for common GPIO functionality provided on some GE Single Board
 202	  Computers.
 203
 204	  This driver provides basic support (configure as input or output, read
 205	  and write pin state) for GPIO implemented in a number of GE single
 206	  board computers.
 207
 
 
 
 
 
 
 
 
 
 
 208config GPIO_GENERIC_PLATFORM
 209	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 210	select GPIO_GENERIC
 211	help
 212	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
 213
 214config GPIO_GRGPIO
 215	tristate "Aeroflex Gaisler GRGPIO support"
 216	depends on OF
 217	select GPIO_GENERIC
 218	select IRQ_DOMAIN
 219	help
 220	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 221	  VHDL IP core library.
 222
 
 
 
 
 
 
 
 
 
 
 223config GPIO_ICH
 224	tristate "Intel ICH GPIO"
 225	depends on PCI && X86
 226	select MFD_CORE
 227	select LPC_ICH
 228	help
 229	  Say yes here to support the GPIO functionality of a number of Intel
 230	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 231	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 232	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 233
 234	  If unsure, say N.
 235
 236config GPIO_IOP
 237	tristate "Intel IOP GPIO"
 238	depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
 
 239	help
 240	  Say yes here to support the GPIO functionality of a number of Intel
 241	  IOP32X or IOP33X.
 242
 243	  If unsure, say N.
 244
 
 
 
 
 
 
 
 
 
 
 
 
 
 245config GPIO_LOONGSON
 246	bool "Loongson-2/3 GPIO support"
 247	depends on CPU_LOONGSON2 || CPU_LOONGSON3
 248	help
 249	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
 250
 251config GPIO_LPC18XX
 252	bool "NXP LPC18XX/43XX GPIO support"
 253	default y if ARCH_LPC18XX
 254	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 
 255	help
 256	  Select this option to enable GPIO driver for
 257	  NXP LPC18XX/43XX devices.
 258
 
 
 
 
 
 
 
 259config GPIO_LYNXPOINT
 260	tristate "Intel Lynxpoint GPIO support"
 261	depends on ACPI && X86
 262	select GPIOLIB_IRQCHIP
 263	help
 264	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
 265	  Requires ACPI device enumeration code to set up a platform device.
 266
 267config GPIO_MB86S7X
 268	bool "GPIO support for Fujitsu MB86S7x Platforms"
 269	depends on ARCH_MB86S7X || COMPILE_TEST
 270	help
 271	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 272
 273config GPIO_MENZ127
 274	tristate "MEN 16Z127 GPIO support"
 275	depends on MCB
 276	select GPIO_GENERIC
 277	help
 278	 Say yes here to support the MEN 16Z127 GPIO Controller
 279
 280config GPIO_MM_LANTIQ
 281	bool "Lantiq Memory mapped GPIOs"
 282	depends on LANTIQ && SOC_XWAY
 283	help
 284	  This enables support for memory mapped GPIOs on the External Bus Unit
 285	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
 286	  created by attaching a 16bit latch to the bus.
 287
 288config GPIO_MOXART
 289	bool "MOXART GPIO support"
 290	depends on ARCH_MOXART || COMPILE_TEST
 291	select GPIO_GENERIC
 292	help
 293	  Select this option to enable GPIO driver for
 294	  MOXA ART SoC devices.
 295
 296config GPIO_MPC5200
 297	def_bool y
 298	depends on PPC_MPC52xx
 299
 300config GPIO_MPC8XXX
 301	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 302	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 303		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 304		   COMPILE_TEST
 305	select GPIO_GENERIC
 
 306	help
 307	  Say Y here if you're going to use hardware that connects to the
 308	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 309
 
 
 
 
 
 
 
 
 
 310config GPIO_MVEBU
 311	def_bool y
 312	depends on PLAT_ORION
 313	depends on OF
 314	select GENERIC_IRQ_CHIP
 
 315
 316config GPIO_MXC
 317	def_bool y
 318	depends on ARCH_MXC
 319	select GPIO_GENERIC
 320	select GENERIC_IRQ_CHIP
 321
 322config GPIO_MXS
 323	def_bool y
 324	depends on ARCH_MXS
 325	select GPIO_GENERIC
 326	select GENERIC_IRQ_CHIP
 327
 328config GPIO_OCTEON
 329	tristate "Cavium OCTEON GPIO"
 330	depends on GPIOLIB && CAVIUM_OCTEON_SOC
 331	default y
 332	help
 333	  Say yes here to support the on-chip GPIO lines on the OCTEON
 334	  family of SOCs.
 335
 336config GPIO_OMAP
 337	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 338	default y if ARCH_OMAP
 339	depends on ARM
 340	select GENERIC_IRQ_CHIP
 341	select GPIOLIB_IRQCHIP
 342	help
 343	  Say yes here to enable GPIO support for TI OMAP SoCs.
 344
 345config GPIO_PL061
 346	bool "PrimeCell PL061 GPIO support"
 347	depends on ARM_AMBA
 348	select IRQ_DOMAIN
 349	select GPIOLIB_IRQCHIP
 350	help
 351	  Say yes here to support the PrimeCell PL061 GPIO device
 352
 
 
 
 
 
 
 
 
 353config GPIO_PXA
 354	bool "PXA GPIO support"
 355	depends on ARCH_PXA || ARCH_MMP
 356	help
 357	  Say yes here to support the PXA GPIO device
 358
 359config GPIO_RCAR
 360	tristate "Renesas R-Car GPIO"
 361	depends on ARCH_RENESAS || COMPILE_TEST
 362	select GPIOLIB_IRQCHIP
 363	help
 364	  Say yes here to support GPIO on Renesas R-Car SoCs.
 365
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 366config GPIO_SPEAR_SPICS
 367	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 368	depends on PLAT_SPEAR
 369	select GENERIC_IRQ_CHIP
 370	help
 371	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 372
 
 
 
 
 
 
 
 
 373config GPIO_STA2X11
 374	bool "STA2x11/ConneXt GPIO support"
 375	depends on MFD_STA2X11
 376	select GENERIC_IRQ_CHIP
 377	help
 378	  Say yes here to support the STA2x11/ConneXt GPIO device.
 379	  The GPIO module has 128 GPIO pins with alternate functions.
 380
 381config GPIO_STP_XWAY
 382	bool "XWAY STP GPIOs"
 383	depends on SOC_XWAY
 
 384	help
 385	  This enables support for the Serial To Parallel (STP) unit found on
 386	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 387	  that can be up to 24 bit. This peripheral is aimed at driving leds.
 388	  Some of the gpios/leds can be auto updated by the soc with dsl and
 389	  phy status.
 390
 391config GPIO_SYSCON
 392	tristate "GPIO based on SYSCON"
 393	depends on MFD_SYSCON && OF
 394	help
 395	  Say yes here to support GPIO functionality though SYSCON driver.
 396
 397config GPIO_TB10X
 398	bool
 
 399	select GENERIC_IRQ_CHIP
 400	select OF_GPIO
 401
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 402config GPIO_TS4800
 403	tristate "TS-4800 DIO blocks and compatibles"
 404	depends on OF_GPIO
 405	depends on SOC_IMX51 || COMPILE_TEST
 406	select GPIO_GENERIC
 407	help
 408	  This driver support TS-4800 FPGA GPIO controllers.
 409
 410config GPIO_TZ1090
 411	bool "Toumaz Xenif TZ1090 GPIO support"
 412	depends on SOC_TZ1090
 413	select GENERIC_IRQ_CHIP
 414	default y
 415	help
 416	  Say yes here to support Toumaz Xenif TZ1090 GPIOs.
 417
 418config GPIO_TZ1090_PDC
 419	bool "Toumaz Xenif TZ1090 PDC GPIO support"
 420	depends on SOC_TZ1090
 421	default y
 
 
 
 
 422	help
 423	  Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs.
 424
 425config GPIO_VF610
 426	def_bool y
 427	depends on ARCH_MXC && SOC_VF610
 428	select GPIOLIB_IRQCHIP
 429	help
 430	  Say yes here to support Vybrid vf610 GPIOs.
 431
 432config GPIO_VR41XX
 433	tristate "NEC VR4100 series General-purpose I/O Uint support"
 434	depends on CPU_VR41XX
 435	help
 436	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 437
 438config GPIO_VX855
 439	tristate "VIA VX855/VX875 GPIO"
 440	depends on PCI
 441	select MFD_CORE
 442	select MFD_VX855
 443	help
 444	  Support access to the VX855/VX875 GPIO lines through the gpio library.
 445
 446	  This driver provides common support for accessing the device,
 447	  additional drivers must be enabled in order to use the
 448	  functionality of the device.
 449
 450config GPIO_XGENE
 451	bool "APM X-Gene GPIO controller support"
 452	depends on ARM64 && OF_GPIO
 453	help
 454	  This driver is to support the GPIO block within the APM X-Gene SoC
 455	  platform's generic flash controller. The GPIO pins are muxed with
 456	  the generic flash controller's address and data pins. Say yes
 457	  here to enable the GFC GPIO functionality.
 458
 459config GPIO_XGENE_SB
 460	tristate "APM X-Gene GPIO standby controller support"
 461	depends on ARCH_XGENE && OF_GPIO
 462	select GPIO_GENERIC
 463	select GPIOLIB_IRQCHIP
 
 464	help
 465	  This driver supports the GPIO block within the APM X-Gene
 466	  Standby Domain. Say yes here to enable the GPIO functionality.
 467
 468config GPIO_XILINX
 469	tristate "Xilinx GPIO support"
 470	depends on OF_GPIO
 471	help
 472	  Say yes here to support the Xilinx FPGA GPIO device
 473
 474config GPIO_XLP
 475	tristate "Netlogic XLP GPIO support"
 476	depends on CPU_XLP && OF_GPIO
 477	select GPIOLIB_IRQCHIP
 478	help
 479	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
 480	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 481	  XLP9XX and XLP5XX.
 
 482
 483	  If unsure, say N.
 484
 485config GPIO_XTENSA
 486	bool "Xtensa GPIO32 support"
 487	depends on XTENSA
 488	depends on HAVE_XTENSA_GPIO32
 489	depends on !SMP
 490	help
 491	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 492	  and EXPSTATE (output) ports
 493
 494config GPIO_ZEVIO
 495	bool "LSI ZEVIO SoC memory mapped GPIOs"
 496	depends on ARM && OF_GPIO
 497	help
 498	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 499
 500config GPIO_ZYNQ
 501	tristate "Xilinx Zynq GPIO support"
 502	depends on ARCH_ZYNQ || ARCH_ZYNQMP
 503	select GPIOLIB_IRQCHIP
 504	help
 505	  Say yes here to support Xilinx Zynq GPIO controller.
 506
 507config GPIO_ZX
 508	bool "ZTE ZX GPIO support"
 
 509	select GPIOLIB_IRQCHIP
 510	help
 511	  Say yes here to support the GPIO device on ZTE ZX SoCs.
 512
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 513endmenu
 514
 515menu "Port-mapped I/O GPIO drivers"
 516	depends on X86 # Unconditional I/O space access
 517
 518config GPIO_104_DIO_48E
 519	tristate "ACCES 104-DIO-48E GPIO support"
 
 
 520	select GPIOLIB_IRQCHIP
 521	help
 522	  Enables GPIO support for the ACCES 104-DIO-48E family. The base port
 523	  address for the device may be configured via the dio_48e_base module
 524	  parameter. The interrupt line number for the device may be configured
 525	  via the dio_48e_irq module parameter.
 526
 527config GPIO_104_IDIO_16
 528	tristate "ACCES 104-IDIO-16 GPIO support"
 
 
 529	select GPIOLIB_IRQCHIP
 530	help
 531	  Enables GPIO support for the ACCES 104-IDIO-16 family. The base port
 532	  address for the device may be set via the idio_16_base module
 533	  parameter. The interrupt line number for the device may be set via the
 534	  idio_16_irq module parameter.
 
 535
 536config GPIO_104_IDI_48
 537	tristate "ACCES 104-IDI-48 GPIO support"
 
 
 538	select GPIOLIB_IRQCHIP
 539	help
 540	  Enables GPIO support for the ACCES 104-IDI-48 family. The base port
 541	  address for the device may be configured via the idi_48_base module
 542	  parameter. The interrupt line number for the device may be configured
 543	  via the idi_48_irq module parameter.
 
 544
 545config GPIO_F7188X
 546	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 547	help
 548	  This option enables support for GPIOs found on Fintek Super-I/O
 549	  chips F71869, F71869A, F71882FG, F71889F and F81866.
 550
 551	  To compile this driver as a module, choose M here: the module will
 552	  be called f7188x-gpio.
 553
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 554config GPIO_IT87
 555	tristate "IT87xx GPIO support"
 556	help
 557	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 558
 559	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 560	  supports the IT8761E Super I/O chip as well.
 
 561
 562	  To compile this driver as a module, choose M here: the module will
 563	  be called gpio_it87
 564
 565config GPIO_SCH
 566	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 567	depends on PCI
 568	select MFD_CORE
 569	select LPC_SCH
 570	help
 571	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
 572	  Intel Tunnel Creek processor, Intel Centerton processor or
 573	  Intel Quark X1000 SoC.
 574
 575	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 576	  powered by the core power rail and are turned off during sleep
 577	  modes (S3 and higher). The remaining four GPIOs are powered by
 578	  the Intel SCH suspend power supply. These GPIOs remain
 579	  active during S3. The suspend powered GPIOs can be used to wake the
 580	  system from the Suspend-to-RAM state.
 581
 582	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
 583	  core power rail and 9 from suspend power supply.
 584
 585	  The Intel Centerton processor has a total of 30 GPIO pins.
 586	  Twenty-one are powered by the core power rail and 9 from the
 587	  suspend power supply.
 588
 589	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 590	  power well and 6 from the suspend power well.
 591
 592config GPIO_SCH311X
 593	tristate "SMSC SCH311x SuperI/O GPIO"
 594	help
 595	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 596	  SCH3116 "Super I/O" chipsets.
 597
 598	  To compile this driver as a module, choose M here: the module will
 599	  be called gpio-sch311x.
 600
 601config GPIO_TS5500
 602	tristate "TS-5500 DIO blocks and compatibles"
 603	depends on TS5500 || COMPILE_TEST
 604	help
 605	  This driver supports Digital I/O exposed by pin blocks found on some
 606	  Technologic Systems platforms. It includes, but is not limited to, 3
 607	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 608	  LCD port.
 609
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 610config GPIO_WS16C48
 611	tristate "WinSystems WS16C48 GPIO support"
 
 612	select GPIOLIB_IRQCHIP
 613	help
 614	  Enables GPIO support for the WinSystems WS16C48. The base port address
 615	  for the device may be configured via the ws16c48_base module
 616	  parameter. The interrupt line number for the device may be configured
 617	  via the ws16c48_irq module parameter.
 618
 619endmenu
 620
 621menu "I2C GPIO expanders"
 622	depends on I2C
 623
 624config GPIO_ADP5588
 625	tristate "ADP5588 I2C GPIO expander"
 626	help
 627	  This option enables support for 18 GPIOs found
 628	  on Analog Devices ADP5588 GPIO Expanders.
 629
 630config GPIO_ADP5588_IRQ
 631	bool "Interrupt controller support for ADP5588"
 632	depends on GPIO_ADP5588=y
 
 633	help
 634	  Say yes here to enable the adp5588 to be used as an interrupt
 635	  controller. It requires the driver to be built in the kernel.
 636
 637config GPIO_ADNP
 638	tristate "Avionic Design N-bit GPIO expander"
 639	depends on OF_GPIO
 640	select GPIOLIB_IRQCHIP
 641	help
 642	  This option enables support for N GPIOs found on Avionic Design
 643	  I2C GPIO expanders. The register space will be extended by powers
 644	  of two, so the controller will need to accommodate for that. For
 645	  example: if a controller provides 48 pins, 6 registers will be
 646	  enough to represent all pins, but the driver will assume a
 647	  register layout for 64 pins (8 registers).
 648
 
 
 
 
 
 
 
 649config GPIO_MAX7300
 650	tristate "Maxim MAX7300 GPIO expander"
 651	select GPIO_MAX730X
 652	help
 653	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 654
 655config GPIO_MAX732X
 656	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 657	help
 658	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 659	  Port Expanders. Each IO port on these chips has a fixed role of
 660	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 661	  Input and Output (designed by 'P'). The combinations are listed
 662	  below:
 663
 664	  8 bits:	max7319 (8I), max7320 (8O), max7321 (8P),
 665		  	max7322 (4I4O), max7323 (4P4O)
 666
 667	  16 bits:	max7324 (8I8O), max7325 (8P8O),
 668		  	max7326 (4I12O), max7327 (4P12O)
 669
 670	  Board setup code must specify the model to use, and the start
 671	  number for these GPIOs.
 672
 673config GPIO_MAX732X_IRQ
 674	bool "Interrupt controller support for MAX732x"
 675	depends on GPIO_MAX732X=y
 676	select GPIOLIB_IRQCHIP
 677	help
 678	  Say yes here to enable the max732x to be used as an interrupt
 679	  controller. It requires the driver to be built in the kernel.
 680
 681config GPIO_MC9S08DZ60
 682	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 683	depends on I2C=y && MACH_MX35_3DS
 684	help
 685	  Select this to enable the MC9S08DZ60 GPIO driver
 686
 687config GPIO_PCA953X
 688	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 
 689	help
 690	  Say yes here to provide access to several register-oriented
 691	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 692	  models include:
 693
 694	  4 bits:	pca9536, pca9537
 695
 696	  8 bits:	max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 697			pca9556, pca9557, pca9574, tca6408, xra1202
 698
 699	  16 bits:	max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 700			tca6416
 701
 702	  24 bits:	tca6424
 703
 704	  40 bits:	pca9505, pca9698
 705
 706config GPIO_PCA953X_IRQ
 707	bool "Interrupt controller support for PCA953x"
 708	depends on GPIO_PCA953X=y
 709	select GPIOLIB_IRQCHIP
 710	help
 711	  Say yes here to enable the pca953x to be used as an interrupt
 712	  controller. It requires the driver to be built in the kernel.
 713
 714config GPIO_PCF857X
 715	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 716	select GPIOLIB_IRQCHIP
 717	select IRQ_DOMAIN
 718	help
 719	  Say yes here to provide access to most "quasi-bidirectional" I2C
 720	  GPIO expanders used for additional digital outputs or inputs.
 721	  Most of these parts are from NXP, though TI is a second source for
 722	  some of them.  Compatible models include:
 723
 724	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 725	            pca9670, pca9672, pca9674, pca9674a,
 726	  	    max7328, max7329
 727
 728	  16 bits:  pcf8575, pcf8575c, pca8575,
 729	            pca9671, pca9673, pca9675
 730
 731	  Your board setup code will need to declare the expanders in
 732	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
 733	  can then be used from drivers and other kernel code, just like
 734	  other GPIOs, but only accessible from task contexts.
 735
 736	  This driver provides an in-kernel interface to those GPIOs using
 737	  platform-neutral GPIO calls.
 738
 739config GPIO_SX150X
 740	bool "Semtech SX150x I2C GPIO expander"
 741	depends on I2C=y
 742	select GPIOLIB_IRQCHIP
 743	default n
 744	help
 745	  Say yes here to provide support for Semtech SX150-series I2C
 746	  GPIO expanders. Compatible models include:
 747
 748	  8 bits:  sx1508q
 749	  16 bits: sx1509q
 750
 751config GPIO_TPIC2810
 752	tristate "TPIC2810 8-Bit I2C GPO expander"
 753	help
 754	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 755
 756	  To compile this driver as a module, choose M here: the module will
 757	  be called gpio-tpic2810.
 758
 
 
 
 
 
 
 
 
 759endmenu
 760
 761menu "MFD GPIO expanders"
 762
 763config GPIO_ADP5520
 764	tristate "GPIO Support for ADP5520 PMIC"
 765	depends on PMIC_ADP5520
 766	help
 767	  This option enables support for on-chip GPIO found
 768	  on Analog Devices ADP5520 PMICs.
 769
 
 
 
 
 
 
 
 
 770config GPIO_ARIZONA
 771	tristate "Wolfson Microelectronics Arizona class devices"
 772	depends on MFD_ARIZONA
 773	help
 774	  Support for GPIOs on Wolfson Arizona class devices.
 775
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 776config GPIO_CRYSTAL_COVE
 777	tristate "GPIO support for Crystal Cove PMIC"
 778	depends on INTEL_SOC_PMIC
 779	select GPIOLIB_IRQCHIP
 780	help
 781	  Support for GPIO pins on Crystal Cove PMIC.
 782
 783	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
 784	  inside.
 785
 786	  This driver can also be built as a module. If so, the module will be
 787	  called gpio-crystalcove.
 788
 789config GPIO_CS5535
 790	tristate "AMD CS5535/CS5536 GPIO support"
 
 791	depends on MFD_CS5535
 792	help
 793	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
 794	  can be used for quite a number of things.  The CS5535/6 is found on
 795	  AMD Geode and Lemote Yeeloong devices.
 796
 797	  If unsure, say N.
 798
 799config GPIO_DA9052
 800	tristate "Dialog DA9052 GPIO"
 801	depends on PMIC_DA9052
 802	help
 803	  Say yes here to enable the GPIO driver for the DA9052 chip.
 804
 805config GPIO_DA9055
 806	tristate "Dialog Semiconductor DA9055 GPIO"
 807	depends on MFD_DA9055
 808	help
 809	  Say yes here to enable the GPIO driver for the DA9055 chip.
 810
 811	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
 812	  be controller by this driver.
 813
 814	  If driver is built as a module it will be called gpio-da9055.
 815
 816config GPIO_DLN2
 817	tristate "Diolan DLN2 GPIO support"
 818	depends on MFD_DLN2
 819	select GPIOLIB_IRQCHIP
 820
 821	help
 822	  Select this option to enable GPIO driver for the Diolan DLN2
 823	  board.
 824
 825	  This driver can also be built as a module. If so, the module
 826	  will be called gpio-dln2.
 827
 
 
 
 
 
 
 
 
 828config GPIO_JANZ_TTL
 829	tristate "Janz VMOD-TTL Digital IO Module"
 830	depends on MFD_JANZ_CMODIO
 831	help
 832	  This enables support for the Janz VMOD-TTL Digital IO module.
 833	  This driver provides support for driving the pins in output
 834	  mode only. Input mode is not supported.
 835
 836config GPIO_KEMPLD
 837	tristate "Kontron ETX / COMexpress GPIO"
 838	depends on MFD_KEMPLD
 839	help
 840	  This enables support for the PLD GPIO interface on some Kontron ETX
 841	  and COMexpress (ETXexpress) modules.
 842
 843	  This driver can also be built as a module. If so, the module will be
 844	  called gpio-kempld.
 845
 846config GPIO_LP3943
 847	tristate "TI/National Semiconductor LP3943 GPIO expander"
 848	depends on MFD_LP3943
 849	help
 850	  GPIO driver for LP3943 MFD.
 851	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
 852	  Open drain outputs are required for this usage.
 853
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 854config GPIO_MSIC
 855	bool "Intel MSIC mixed signal gpio support"
 856	depends on MFD_INTEL_MSIC
 857	help
 858	  Enable support for GPIO on intel MSIC controllers found in
 859	  intel MID devices
 860
 861config GPIO_PALMAS
 862	bool "TI PALMAS series PMICs GPIO"
 863	depends on MFD_PALMAS
 864	help
 865	  Select this option to enable GPIO driver for the TI PALMAS
 866	  series chip family.
 867
 868config GPIO_RC5T583
 869	bool "RICOH RC5T583 GPIO"
 870	depends on MFD_RC5T583
 871	help
 872	  Select this option to enable GPIO driver for the Ricoh RC5T583
 873	  chip family.
 874	  This driver provides the support for driving/reading the gpio pins
 875	  of RC5T583 device through standard gpio library.
 876
 877config GPIO_STMPE
 878	bool "STMPE GPIOs"
 879	depends on MFD_STMPE
 880	depends on OF_GPIO
 881	select GPIOLIB_IRQCHIP
 882	help
 883	  This enables support for the GPIOs found on the STMPE I/O
 884	  Expanders.
 885
 886config GPIO_TC3589X
 887	bool "TC3589X GPIOs"
 888	depends on MFD_TC3589X
 889	depends on OF_GPIO
 890	select GPIOLIB_IRQCHIP
 891	help
 892	  This enables support for the GPIOs found on the TC3589X
 893	  I/O Expander.
 894
 895config GPIO_TIMBERDALE
 896	bool "Support for timberdale GPIO IP"
 897	depends on MFD_TIMBERDALE
 898	---help---
 899	Add support for the GPIO IP in the timberdale FPGA.
 900
 901config GPIO_TPS65086
 902	tristate "TI TPS65086 GPO"
 903	depends on MFD_TPS65086
 904	help
 905	  This driver supports the GPO on TI TPS65086x PMICs.
 906
 907config GPIO_TPS65218
 908	tristate "TPS65218 GPIO"
 909	depends on MFD_TPS65218
 910	help
 911	  Select this option to enable GPIO driver for the TPS65218
 912	  chip family.
 913
 914config GPIO_TPS6586X
 915	bool "TPS6586X GPIO"
 916	depends on MFD_TPS6586X
 917	help
 918	  Select this option to enable GPIO driver for the TPS6586X
 919	  chip family.
 920
 921config GPIO_TPS65910
 922	bool "TPS65910 GPIO"
 923	depends on MFD_TPS65910
 924	help
 925	  Select this option to enable GPIO driver for the TPS65910
 926	  chip family.
 927
 928config GPIO_TPS65912
 929	tristate "TI TPS65912 GPIO"
 930	depends on MFD_TPS65912
 931	help
 932	  This driver supports TPS65912 gpio chip
 933
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 934config GPIO_TWL4030
 935	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
 936	depends on TWL4030_CORE
 937	help
 938	  Say yes here to access the GPIO signals of various multi-function
 939	  power management chips from Texas Instruments.
 940
 941config GPIO_TWL6040
 942	tristate "TWL6040 GPO"
 943	depends on TWL6040_CORE
 944	help
 945	  Say yes here to access the GPO signals of twl6040
 946	  audio chip from Texas Instruments.
 947
 948config GPIO_UCB1400
 949	tristate "Philips UCB1400 GPIO"
 950	depends on UCB1400_CORE
 951	help
 952	  This enables support for the Philips UCB1400 GPIO pins.
 953	  The UCB1400 is an AC97 audio codec.
 954
 
 
 
 
 
 
 
 
 
 
 
 
 
 955config GPIO_WM831X
 956	tristate "WM831x GPIOs"
 957	depends on MFD_WM831X
 958	help
 959	  Say yes here to access the GPIO signals of WM831x power management
 960	  chips from Wolfson Microelectronics.
 961
 962config GPIO_WM8350
 963	tristate "WM8350 GPIOs"
 964	depends on MFD_WM8350
 965	help
 966	  Say yes here to access the GPIO signals of WM8350 power management
 967	  chips from Wolfson Microelectronics.
 968
 969config GPIO_WM8994
 970	tristate "WM8994 GPIOs"
 971	depends on MFD_WM8994
 972	help
 973	  Say yes here to access the GPIO signals of WM8994 audio hub
 974	  CODECs from Wolfson Microelectronics.
 975
 976endmenu
 977
 978menu "PCI GPIO expanders"
 979	depends on PCI
 980
 981config GPIO_AMD8111
 982	tristate "AMD 8111 GPIO driver"
 
 983	help
 984	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
 985
 986	  Note, that usually system firmware/ACPI handles GPIO pins on their
 987	  own and users might easily break their systems with uncarefull usage
 988	  of this driver!
 989
 990	  If unsure, say N
 991
 992config GPIO_BT8XX
 993	tristate "BT8XX GPIO abuser"
 994	depends on VIDEO_BT848=n
 995	help
 996	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
 997	  as a cheap PCI GPIO card.
 998
 999	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1000
1001	  The card needs to be physically altered for using it as a
1002	  GPIO card. For more information on how to build a GPIO card
1003	  from a BT8xx TV card, see the documentation file at
1004	  Documentation/bt8xxgpio.txt
1005
1006	  If unsure, say N.
1007
1008config GPIO_INTEL_MID
1009	bool "Intel Mid GPIO support"
1010	depends on X86
 
 
 
 
 
 
 
1011	select GPIOLIB_IRQCHIP
1012	help
1013	  Say Y here to support Intel Mid GPIO.
 
 
 
 
 
 
 
1014
1015config GPIO_ML_IOH
1016	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
 
1017	select GENERIC_IRQ_CHIP
1018	help
1019	  ML7213 is companion chip for Intel Atom E6xx series.
1020	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1021	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1022	  This driver can access the IOH's GPIO device.
1023
1024config GPIO_PCH
1025	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1026	depends on X86_32 || MIPS || COMPILE_TEST
1027	select GENERIC_IRQ_CHIP
1028	help
1029	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1030	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1031	  This driver can access PCH GPIO device.
1032
1033	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1034	  Output Hub), ML7223 and ML7831.
1035	  ML7223 IOH is for MP(Media Phone) use.
1036	  ML7831 IOH is for general purpose use.
1037	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1038	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1039
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1040config GPIO_RDC321X
1041	tristate "RDC R-321x GPIO support"
1042	select MFD_CORE
1043	select MFD_RDC321X
1044	help
1045	  Support for the RDC R321x SoC GPIOs over southbridge
1046	  PCI configuration space.
1047
1048config GPIO_SODAVILLE
1049	bool "Intel Sodaville GPIO support"
1050	depends on X86 && OF
1051	select GPIO_GENERIC
1052	select GENERIC_IRQ_CHIP
1053	help
1054	  Say Y here to support Intel Sodaville GPIO.
1055
1056endmenu
1057
1058menu "SPI GPIO expanders"
1059	depends on SPI_MASTER
1060
1061config GPIO_74X164
1062	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1063	depends on OF
1064	help
1065	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1066	  shift registers. This driver can be used to provide access
1067	  to more gpio outputs.
1068
 
 
 
 
 
 
 
 
 
 
1069config GPIO_MAX7301
1070	tristate "Maxim MAX7301 GPIO expander"
1071	select GPIO_MAX730X
1072	help
1073	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1074
1075config GPIO_MC33880
1076	tristate "Freescale MC33880 high-side/low-side switch"
1077	help
1078	  SPI driver for Freescale MC33880 high-side/low-side switch.
1079	  This provides GPIO interface supporting inputs and outputs.
1080
1081config GPIO_PISOSR
1082	tristate "Generic parallel-in/serial-out shift register"
1083	help
1084	  GPIO driver for SPI compatible parallel-in/serial-out shift
1085	  registers. These are input only devices.
1086
1087endmenu
1088
1089menu "SPI or I2C GPIO expanders"
1090	depends on (SPI_MASTER && !I2C) || I2C
1091
1092config GPIO_MCP23S08
1093	tristate "Microchip MCP23xxx I/O expander"
1094	help
1095	  SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017
1096	  I/O expanders.
1097	  This provides a GPIO interface supporting inputs and outputs.
1098	  The I2C versions of the chips can be used as interrupt-controller.
 
 
1099
1100endmenu
1101
1102menu "USB GPIO expanders"
1103	depends on USB
1104
1105config GPIO_VIPERBOARD
1106	tristate "Viperboard GPIO a & b support"
1107	depends on MFD_VIPERBOARD
1108	help
1109	  Say yes here to access the GPIO signals of Nano River
1110	  Technologies Viperboard. There are two GPIO chips on the
1111	  board: gpioa and gpiob.
1112          See viperboard API specification and Nano
1113          River Tech's viperboard.h for detailed meaning
1114          of the module parameters.
1115
1116endmenu
 
 
 
 
 
 
 
 
 
 
 
1117
1118endif

   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
  76# put drivers in the right section, in alphabetical order
  77
  78# This symbol is selected by both I2C and SPI expanders
  79config GPIO_MAX730X
  80	tristate
  81
  82menu "Memory mapped GPIO drivers"
  83	depends on HAS_IOMEM
  84
  85config GPIO_74XX_MMIO
  86	tristate "GPIO driver for 74xx-ICs with MMIO access"
  87	depends on OF_GPIO
  88	select GPIO_GENERIC
  89	help
  90	  Say yes here to support GPIO functionality for 74xx-compatible ICs
  91	  with MMIO access. Compatible models include:
  92	    1 bit:	741G125 (Input), 741G74 (Output)
  93	    2 bits:	742G125 (Input), 7474 (Output)
  94	    4 bits:	74125 (Input), 74175 (Output)
  95	    6 bits:	74365 (Input), 74174 (Output)
  96	    8 bits:	74244 (Input), 74273 (Output)
  97	    16 bits:	741624 (Input), 7416374 (Output)
  98
  99config GPIO_ALTERA
 100	tristate "Altera GPIO"
 101	depends on OF_GPIO
 102	select GPIOLIB_IRQCHIP
 103	help
 104	  Say Y or M here to build support for the Altera PIO device.
 105
 106	  If driver is built as a module it will be called gpio-altera.
 107
 108config GPIO_AMDPT
 109	tristate "AMD Promontory GPIO support"
 110	depends on ACPI
 111	select GPIO_GENERIC
 112	help
 113	  driver for GPIO functionality on Promontory IOHub
 114	  Require ACPI ASL code to enumerate as a platform device.
 115
 116config GPIO_ASPEED
 117	tristate "Aspeed GPIO support"
 118	depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
 119	select GPIOLIB_IRQCHIP
 120	help
 121	  Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
 122
 123config GPIO_ATH79
 124	tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
 125	default y if ATH79
 126	depends on ATH79 || COMPILE_TEST
 127	select GPIO_GENERIC
 128	select GPIOLIB_IRQCHIP
 129	help
 130	  Select this option to enable GPIO driver for
 131	  Atheros AR71XX/AR724X/AR913X SoC devices.
 132
 133config GPIO_RASPBERRYPI_EXP
 134	tristate "Raspberry Pi 3 GPIO Expander"
 135	default RASPBERRYPI_FIRMWARE
 136	depends on OF_GPIO
 137	# Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
 138	# happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
 139	depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
 140	help
 141	  Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
 142	  the firmware mailbox to communicate with VideoCore on BCM283x chips.
 143
 144config GPIO_BCM_KONA
 145	bool "Broadcom Kona GPIO"
 146	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
 147	help
 148	  Turn on GPIO support for Broadcom "Kona" chips.
 149
 150config GPIO_BRCMSTB
 151	tristate "BRCMSTB GPIO support"
 152	default y if (ARCH_BRCMSTB || BMIPS_GENERIC)
 153	depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST)
 154	select GPIO_GENERIC
 155	select IRQ_DOMAIN
 156	help
 157	  Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs.
 158
 159config GPIO_CADENCE
 160	tristate "Cadence GPIO support"
 161	depends on OF_GPIO
 162	select GPIO_GENERIC
 163	select GPIOLIB_IRQCHIP
 164	help
 165	  Say yes here to enable support for Cadence GPIO controller.
 166
 167config GPIO_CLPS711X
 168	tristate "CLPS711X GPIO support"
 169	depends on ARCH_CLPS711X || COMPILE_TEST
 170	select GPIO_GENERIC
 171	help
 172	  Say yes here to support GPIO on CLPS711X SoCs.
 173
 174config GPIO_DAVINCI
 175	bool "TI Davinci/Keystone GPIO support"
 176	default y if ARCH_DAVINCI
 177	depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3)
 178	help
 179	  Say yes here to enable GPIO support for TI Davinci/Keystone SoCs.
 180
 181config GPIO_DWAPB
 182	tristate "Synopsys DesignWare APB GPIO driver"
 183	select GPIO_GENERIC
 184	select GENERIC_IRQ_CHIP
 185	help
 186	  Say Y or M here to build support for the Synopsys DesignWare APB
 187	  GPIO block.
 188
 189config GPIO_EIC_SPRD
 190	tristate "Spreadtrum EIC support"
 191	depends on ARCH_SPRD || COMPILE_TEST
 192	depends on OF_GPIO
 193	select GPIOLIB_IRQCHIP
 194	help
 195	  Say yes here to support Spreadtrum EIC device.
 196
 197config GPIO_EM
 198	tristate "Emma Mobile GPIO"
 199	depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO
 200	help
 201	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 202
 203config GPIO_EP93XX
 204	def_bool y
 205	depends on ARCH_EP93XX
 206	select GPIO_GENERIC
 
 
 
 
 
 
 207	select GPIOLIB_IRQCHIP
 208
 209config GPIO_EXAR
 210	tristate "Support for GPIO pins on XR17V352/354/358"
 211	depends on SERIAL_8250_EXAR
 212	help
 213	  Selecting this option will enable handling of GPIO pins present
 214	  on Exar XR17V352/354/358 chips.
 215
 216config GPIO_GE_FPGA
 217	bool "GE FPGA based GPIO"
 218	depends on GE_FPGA
 219	select GPIO_GENERIC
 220	help
 221	  Support for common GPIO functionality provided on some GE Single Board
 222	  Computers.
 223
 224	  This driver provides basic support (configure as input or output, read
 225	  and write pin state) for GPIO implemented in a number of GE single
 226	  board computers.
 227
 228config GPIO_FTGPIO010
 229	bool "Faraday FTGPIO010 GPIO"
 230	depends on OF_GPIO
 231	select GPIO_GENERIC
 232	select GPIOLIB_IRQCHIP
 233	default (ARCH_GEMINI || ARCH_MOXART)
 234	help
 235	  Support for common GPIOs from the Faraday FTGPIO010 IP core, found in
 236	  Cortina systems Gemini platforms, Moxa ART and others.
 237
 238config GPIO_GENERIC_PLATFORM
 239	tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
 240	select GPIO_GENERIC
 241	help
 242	  Say yes here to support basic platform_device memory-mapped GPIO controllers.
 243
 244config GPIO_GRGPIO
 245	tristate "Aeroflex Gaisler GRGPIO support"
 246	depends on OF_GPIO
 247	select GPIO_GENERIC
 248	select IRQ_DOMAIN
 249	help
 250	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 251	  VHDL IP core library.
 252
 253config GPIO_HLWD
 254	tristate "Nintendo Wii (Hollywood) GPIO"
 255	depends on OF_GPIO
 256	select GPIO_GENERIC
 257	select GPIOLIB_IRQCHIP
 258	help
 259	  Select this to support the GPIO controller of the Nintendo Wii.
 260
 261	  If unsure, say N.
 262
 263config GPIO_ICH
 264	tristate "Intel ICH GPIO"
 265	depends on PCI && X86
 266	select MFD_CORE
 267	select LPC_ICH
 268	help
 269	  Say yes here to support the GPIO functionality of a number of Intel
 270	  ICH-based chipsets.  Currently supported devices: ICH6, ICH7, ICH8
 271	  ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg
 272	  Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake).
 273
 274	  If unsure, say N.
 275
 276config GPIO_IOP
 277	tristate "Intel IOP GPIO"
 278	depends on ARCH_IOP32X || COMPILE_TEST
 279	select GPIO_GENERIC
 280	help
 281	  Say yes here to support the GPIO functionality of a number of Intel
 282	  IOP32X or IOP33X.
 283
 284	  If unsure, say N.
 285
 286config GPIO_IXP4XX
 287	bool "Intel IXP4xx GPIO"
 288	depends on ARM # For <asm/mach-types.h>
 289	depends on ARCH_IXP4XX
 290	select GPIO_GENERIC
 291	select GPIOLIB_IRQCHIP
 292	select IRQ_DOMAIN_HIERARCHY
 293	help
 294	  Say yes here to support the GPIO functionality of a number of Intel
 295	  IXP4xx series of chips.
 296
 297	  If unsure, say N.
 298
 299config GPIO_LOONGSON
 300	bool "Loongson-2/3 GPIO support"
 301	depends on CPU_LOONGSON2 || CPU_LOONGSON3
 302	help
 303	  driver for GPIO functionality on Loongson-2F/3A/3B processors.
 304
 305config GPIO_LPC18XX
 306	tristate "NXP LPC18XX/43XX GPIO support"
 307	default y if ARCH_LPC18XX
 308	depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST)
 309	select IRQ_DOMAIN_HIERARCHY
 310	help
 311	  Select this option to enable GPIO driver for
 312	  NXP LPC18XX/43XX devices.
 313
 314config GPIO_LPC32XX
 315	tristate "NXP LPC32XX GPIO support"
 316	depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST)
 317	help
 318	  Select this option to enable GPIO driver for
 319	  NXP LPC32XX devices.
 320
 321config GPIO_LYNXPOINT
 322	tristate "Intel Lynxpoint GPIO support"
 323	depends on ACPI && X86
 324	select GPIOLIB_IRQCHIP
 325	help
 326	  driver for GPIO functionality on Intel Lynxpoint PCH chipset
 327	  Requires ACPI device enumeration code to set up a platform device.
 328
 329config GPIO_MB86S7X
 330	tristate "GPIO support for Fujitsu MB86S7x Platforms"
 
 331	help
 332	  Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs.
 333
 334config GPIO_MENZ127
 335	tristate "MEN 16Z127 GPIO support"
 336	depends on MCB
 337	select GPIO_GENERIC
 338	help
 339	  Say yes here to support the MEN 16Z127 GPIO Controller
 340
 341config GPIO_MM_LANTIQ
 342	bool "Lantiq Memory mapped GPIOs"
 343	depends on LANTIQ && SOC_XWAY
 344	help
 345	  This enables support for memory mapped GPIOs on the External Bus Unit
 346	  (EBU) found on Lantiq SoCs. The gpios are output only as they are
 347	  created by attaching a 16bit latch to the bus.
 348
 
 
 
 
 
 
 
 
 349config GPIO_MPC5200
 350	def_bool y
 351	depends on PPC_MPC52xx
 352
 353config GPIO_MPC8XXX
 354	bool "MPC512x/MPC8xxx/QorIQ GPIO support"
 355	depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \
 356		   FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \
 357		   COMPILE_TEST
 358	select GPIO_GENERIC
 359	select IRQ_DOMAIN
 360	help
 361	  Say Y here if you're going to use hardware that connects to the
 362	  MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs.
 363
 364config GPIO_MT7621
 365	bool "Mediatek MT7621 GPIO Support"
 366	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
 367	depends on OF_GPIO
 368	select GPIO_GENERIC
 369	select GPIOLIB_IRQCHIP
 370	help
 371	  Say yes here to support the Mediatek MT7621 SoC GPIO device
 372
 373config GPIO_MVEBU
 374	def_bool y
 375	depends on PLAT_ORION || ARCH_MVEBU
 376	depends on OF_GPIO
 377	select GENERIC_IRQ_CHIP
 378	select REGMAP_MMIO
 379
 380config GPIO_MXC
 381	def_bool y
 382	depends on ARCH_MXC
 383	select GPIO_GENERIC
 384	select GENERIC_IRQ_CHIP
 385
 386config GPIO_MXS
 387	def_bool y
 388	depends on ARCH_MXS
 389	select GPIO_GENERIC
 390	select GENERIC_IRQ_CHIP
 391
 392config GPIO_OCTEON
 393	tristate "Cavium OCTEON GPIO"
 394	depends on GPIOLIB && CAVIUM_OCTEON_SOC
 395	default y
 396	help
 397	  Say yes here to support the on-chip GPIO lines on the OCTEON
 398	  family of SOCs.
 399
 400config GPIO_OMAP
 401	tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST
 402	default y if ARCH_OMAP
 403	depends on ARM
 404	select GENERIC_IRQ_CHIP
 405	select GPIOLIB_IRQCHIP
 406	help
 407	  Say yes here to enable GPIO support for TI OMAP SoCs.
 408
 409config GPIO_PL061
 410	bool "PrimeCell PL061 GPIO support"
 411	depends on ARM_AMBA
 412	select IRQ_DOMAIN
 413	select GPIOLIB_IRQCHIP
 414	help
 415	  Say yes here to support the PrimeCell PL061 GPIO device
 416
 417config GPIO_PMIC_EIC_SPRD
 418	tristate "Spreadtrum PMIC EIC support"
 419	depends on MFD_SC27XX_PMIC || COMPILE_TEST
 420	depends on OF_GPIO
 421	select GPIOLIB_IRQCHIP
 422	help
 423	  Say yes here to support Spreadtrum PMIC EIC device.
 424
 425config GPIO_PXA
 426	bool "PXA GPIO support"
 427	depends on ARCH_PXA || ARCH_MMP
 428	help
 429	  Say yes here to support the PXA GPIO device
 430
 431config GPIO_RCAR
 432	tristate "Renesas R-Car GPIO"
 433	depends on ARCH_RENESAS || COMPILE_TEST
 434	select GPIOLIB_IRQCHIP
 435	help
 436	  Say yes here to support GPIO on Renesas R-Car SoCs.
 437
 438config GPIO_REG
 439	bool
 440	help
 441	  A 32-bit single register GPIO fixed in/out implementation.  This
 442	  can be used to represent any register as a set of GPIO signals.
 443
 444config GPIO_SAMA5D2_PIOBU
 445	tristate "SAMA5D2 PIOBU GPIO support"
 446	depends on MFD_SYSCON
 447	depends on OF_GPIO
 448	select GPIO_SYSCON
 449	help
 450	  Say yes here to use the PIOBU pins as GPIOs.
 451
 452	  PIOBU pins on the SAMA5D2 can be used as GPIOs.
 453	  The difference from regular GPIOs is that they
 454	  maintain their value during backup/self-refresh.
 455
 456config GPIO_SIOX
 457	tristate "SIOX GPIO support"
 458	depends on SIOX
 459	select GPIOLIB_IRQCHIP
 460	help
 461	  Say yes here to support SIOX I/O devices. These are units connected
 462	  via a SIOX bus and have a number of fixed-direction I/O lines.
 463
 464config GPIO_SNPS_CREG
 465	bool "Synopsys GPIO via CREG (Control REGisters) driver"
 466	depends on ARC || COMPILE_TEST
 467	depends on OF_GPIO
 468	help
 469	  This driver supports GPIOs via CREG on various Synopsys SoCs.
 470	  This is a single-register MMIO GPIO driver for complex cases
 471	  where only several fields in register belong to GPIO lines and
 472	  each GPIO line owns a field with different length and on/off value.
 473
 474config GPIO_SPEAR_SPICS
 475	bool "ST SPEAr13xx SPI Chip Select as GPIO support"
 476	depends on PLAT_SPEAR
 477	select GENERIC_IRQ_CHIP
 478	help
 479	  Say yes here to support ST SPEAr SPI Chip Select as GPIO device
 480
 481config GPIO_SPRD
 482	tristate "Spreadtrum GPIO support"
 483	depends on ARCH_SPRD || COMPILE_TEST
 484	depends on OF_GPIO
 485	select GPIOLIB_IRQCHIP
 486	help
 487	  Say yes here to support Spreadtrum GPIO device.
 488
 489config GPIO_STA2X11
 490	bool "STA2x11/ConneXt GPIO support"
 491	depends on MFD_STA2X11
 492	select GENERIC_IRQ_CHIP
 493	help
 494	  Say yes here to support the STA2x11/ConneXt GPIO device.
 495	  The GPIO module has 128 GPIO pins with alternate functions.
 496
 497config GPIO_STP_XWAY
 498	bool "XWAY STP GPIOs"
 499	depends on SOC_XWAY || COMPILE_TEST
 500	depends on OF_GPIO
 501	help
 502	  This enables support for the Serial To Parallel (STP) unit found on
 503	  XWAY SoC. The STP allows the SoC to drive a shift registers cascade,
 504	  that can be up to 24 bit. This peripheral is aimed at driving leds.
 505	  Some of the gpios/leds can be auto updated by the soc with dsl and
 506	  phy status.
 507
 508config GPIO_SYSCON
 509	tristate "GPIO based on SYSCON"
 510	depends on MFD_SYSCON && OF
 511	help
 512	  Say yes here to support GPIO functionality though SYSCON driver.
 513
 514config GPIO_TB10X
 515	bool
 516	select GPIO_GENERIC
 517	select GENERIC_IRQ_CHIP
 518	select OF_GPIO
 519
 520config GPIO_TEGRA
 521	bool "NVIDIA Tegra GPIO support"
 522	default ARCH_TEGRA
 523	depends on ARCH_TEGRA || COMPILE_TEST
 524	depends on OF_GPIO
 525	help
 526	  Say yes here to support GPIO pins on NVIDIA Tegra SoCs.
 527
 528config GPIO_TEGRA186
 529	tristate "NVIDIA Tegra186 GPIO support"
 530	default ARCH_TEGRA_186_SOC
 531	depends on ARCH_TEGRA_186_SOC || COMPILE_TEST
 532	depends on OF_GPIO
 533	select GPIOLIB_IRQCHIP
 534	help
 535	  Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs.
 536
 537config GPIO_TS4800
 538	tristate "TS-4800 DIO blocks and compatibles"
 539	depends on OF_GPIO
 540	depends on SOC_IMX51 || COMPILE_TEST
 541	select GPIO_GENERIC
 542	help
 543	  This driver support TS-4800 FPGA GPIO controllers.
 544
 545config GPIO_THUNDERX
 546	tristate "Cavium ThunderX/OCTEON-TX GPIO"
 547	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
 548	depends on PCI_MSI
 549	select GPIOLIB_IRQCHIP
 550	select IRQ_DOMAIN_HIERARCHY
 551	select IRQ_FASTEOI_HIERARCHY_HANDLERS
 552	help
 553	  Say yes here to support the on-chip GPIO lines on the ThunderX
 554	  and OCTEON-TX families of SoCs.
 555
 556config GPIO_UNIPHIER
 557	tristate "UniPhier GPIO support"
 558	depends on ARCH_UNIPHIER || COMPILE_TEST
 559	depends on OF_GPIO
 560	select IRQ_DOMAIN_HIERARCHY
 561	help
 562	  Say yes here to support UniPhier GPIOs.
 563
 564config GPIO_VF610
 565	def_bool y
 566	depends on ARCH_MXC && SOC_VF610
 567	select GPIOLIB_IRQCHIP
 568	help
 569	  Say yes here to support Vybrid vf610 GPIOs.
 570
 571config GPIO_VR41XX
 572	tristate "NEC VR4100 series General-purpose I/O Uint support"
 573	depends on CPU_VR41XX
 574	help
 575	  Say yes here to support the NEC VR4100 series General-purpose I/O Uint
 576
 577config GPIO_VX855
 578	tristate "VIA VX855/VX875 GPIO"
 579	depends on (X86 || COMPILE_TEST) && PCI
 580	select MFD_CORE
 581	select MFD_VX855
 582	help
 583	  Support access to the VX855/VX875 GPIO lines through the gpio library.
 584
 585	  This driver provides common support for accessing the device,
 586	  additional drivers must be enabled in order to use the
 587	  functionality of the device.
 588
 589config GPIO_XGENE
 590	bool "APM X-Gene GPIO controller support"
 591	depends on ARM64 && OF_GPIO
 592	help
 593	  This driver is to support the GPIO block within the APM X-Gene SoC
 594	  platform's generic flash controller. The GPIO pins are muxed with
 595	  the generic flash controller's address and data pins. Say yes
 596	  here to enable the GFC GPIO functionality.
 597
 598config GPIO_XGENE_SB
 599	tristate "APM X-Gene GPIO standby controller support"
 600	depends on ARCH_XGENE && OF_GPIO
 601	select GPIO_GENERIC
 602	select GPIOLIB_IRQCHIP
 603	select IRQ_DOMAIN_HIERARCHY
 604	help
 605	  This driver supports the GPIO block within the APM X-Gene
 606	  Standby Domain. Say yes here to enable the GPIO functionality.
 607
 608config GPIO_XILINX
 609	tristate "Xilinx GPIO support"
 
 610	help
 611	  Say yes here to support the Xilinx FPGA GPIO device
 612
 613config GPIO_XLP
 614	tristate "Netlogic XLP GPIO support"
 615	depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST)
 616	select GPIOLIB_IRQCHIP
 617	help
 618	  This driver provides support for GPIO interface on Netlogic XLP MIPS64
 619	  SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX,
 620	  XLP9XX and XLP5XX. The same GPIO controller block is also present in
 621	  Cavium's ThunderX2 CN99XX SoCs.
 622
 623	  If unsure, say N.
 624
 625config GPIO_XTENSA
 626	bool "Xtensa GPIO32 support"
 627	depends on XTENSA
 628	depends on HAVE_XTENSA_GPIO32
 629	depends on !SMP
 630	help
 631	  Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input)
 632	  and EXPSTATE (output) ports
 633
 634config GPIO_ZEVIO
 635	bool "LSI ZEVIO SoC memory mapped GPIOs"
 636	depends on ARM && OF_GPIO
 637	help
 638	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 639
 640config GPIO_ZYNQ
 641	tristate "Xilinx Zynq GPIO support"
 642	depends on ARCH_ZYNQ || ARCH_ZYNQMP
 643	select GPIOLIB_IRQCHIP
 644	help
 645	  Say yes here to support Xilinx Zynq GPIO controller.
 646
 647config GPIO_ZX
 648	bool "ZTE ZX GPIO support"
 649	depends on ARCH_ZX || COMPILE_TEST
 650	select GPIOLIB_IRQCHIP
 651	help
 652	  Say yes here to support the GPIO device on ZTE ZX SoCs.
 653
 654config GPIO_LOONGSON1
 655	tristate "Loongson1 GPIO support"
 656	depends on MACH_LOONGSON32
 657	select GPIO_GENERIC
 658	help
 659	  Say Y or M here to support GPIO on Loongson1 SoCs.
 660
 661config GPIO_AMD_FCH
 662	tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)"
 663	help
 664	  This option enables driver for GPIO on AMDs Fusion Controller Hub,
 665	  as found on G-series SOCs (eg. GX-412TC)
 666
 667	  Note: This driver doesn't registers itself automatically, as it
 668	  needs to be provided with platform specific configuration.
 669	  (See eg. CONFIG_PCENGINES_APU2.)
 670endmenu
 671
 672menu "Port-mapped I/O GPIO drivers"
 673	depends on X86 # Unconditional I/O space access
 674
 675config GPIO_104_DIO_48E
 676	tristate "ACCES 104-DIO-48E GPIO support"
 677	depends on PC104
 678	select ISA_BUS_API
 679	select GPIOLIB_IRQCHIP
 680	help
 681	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 682	  104-DIO-24E). The base port addresses for the devices may be
 683	  configured via the base module parameter. The interrupt line numbers
 684	  for the devices may be configured via the irq module parameter.
 685
 686config GPIO_104_IDIO_16
 687	tristate "ACCES 104-IDIO-16 GPIO support"
 688	depends on PC104
 689	select ISA_BUS_API
 690	select GPIOLIB_IRQCHIP
 691	help
 692	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
 693	  104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The
 694	  base port addresses for the devices may be configured via the base
 695	  module parameter. The interrupt line numbers for the devices may be
 696	  configured via the irq module parameter.
 697
 698config GPIO_104_IDI_48
 699	tristate "ACCES 104-IDI-48 GPIO support"
 700	depends on PC104
 701	select ISA_BUS_API
 702	select GPIOLIB_IRQCHIP
 703	help
 704	  Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A,
 705	  104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for
 706	  the devices may be configured via the base module parameter. The
 707	  interrupt line numbers for the devices may be configured via the irq
 708	  module parameter.
 709
 710config GPIO_F7188X
 711	tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support"
 712	help
 713	  This option enables support for GPIOs found on Fintek Super-I/O
 714	  chips F71869, F71869A, F71882FG, F71889F and F81866.
 715
 716	  To compile this driver as a module, choose M here: the module will
 717	  be called f7188x-gpio.
 718
 719config GPIO_GPIO_MM
 720	tristate "Diamond Systems GPIO-MM GPIO support"
 721	depends on PC104
 722	select ISA_BUS_API
 723	help
 724	  Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12.
 725
 726	  The Diamond Systems GPIO-MM device features 48 lines of digital I/O
 727	  via the emulation of dual 82C55A PPI chips. This driver provides GPIO
 728	  support for these 48 channels of digital I/O.
 729
 730	  The base port addresses for the devices may be configured via the base
 731	  array module parameter.
 732
 733config GPIO_IT87
 734	tristate "IT87xx GPIO support"
 735	help
 736	  Say yes here to support GPIO functionality of IT87xx Super I/O chips.
 737
 738	  This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and
 739	  supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as
 740	  well.
 741
 742	  To compile this driver as a module, choose M here: the module will
 743	  be called gpio_it87
 744
 745config GPIO_SCH
 746	tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO"
 747	depends on (X86 || COMPILE_TEST) && PCI
 748	select MFD_CORE
 749	select LPC_SCH
 750	help
 751	  Say yes here to support GPIO interface on Intel Poulsbo SCH,
 752	  Intel Tunnel Creek processor, Intel Centerton processor or
 753	  Intel Quark X1000 SoC.
 754
 755	  The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are
 756	  powered by the core power rail and are turned off during sleep
 757	  modes (S3 and higher). The remaining four GPIOs are powered by
 758	  the Intel SCH suspend power supply. These GPIOs remain
 759	  active during S3. The suspend powered GPIOs can be used to wake the
 760	  system from the Suspend-to-RAM state.
 761
 762	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
 763	  core power rail and 9 from suspend power supply.
 764
 765	  The Intel Centerton processor has a total of 30 GPIO pins.
 766	  Twenty-one are powered by the core power rail and 9 from the
 767	  suspend power supply.
 768
 769	  The Intel Quark X1000 SoC has 2 GPIOs powered by the core
 770	  power well and 6 from the suspend power well.
 771
 772config GPIO_SCH311X
 773	tristate "SMSC SCH311x SuperI/O GPIO"
 774	help
 775	  Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and
 776	  SCH3116 "Super I/O" chipsets.
 777
 778	  To compile this driver as a module, choose M here: the module will
 779	  be called gpio-sch311x.
 780
 781config GPIO_TS5500
 782	tristate "TS-5500 DIO blocks and compatibles"
 783	depends on TS5500 || COMPILE_TEST
 784	help
 785	  This driver supports Digital I/O exposed by pin blocks found on some
 786	  Technologic Systems platforms. It includes, but is not limited to, 3
 787	  blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
 788	  LCD port.
 789
 790config GPIO_WINBOND
 791	tristate "Winbond Super I/O GPIO support"
 792	select ISA_BUS_API
 793	help
 794	  This option enables support for GPIOs found on Winbond Super I/O
 795	  chips.
 796	  Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is
 797	  supported.
 798
 799	  You will need to provide a module parameter "gpios", or a
 800	  boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO
 801	  ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.).
 802
 803	  To compile this driver as a module, choose M here: the module will
 804	  be called gpio-winbond.
 805
 806config GPIO_WS16C48
 807	tristate "WinSystems WS16C48 GPIO support"
 808	select ISA_BUS_API
 809	select GPIOLIB_IRQCHIP
 810	help
 811	  Enables GPIO support for the WinSystems WS16C48. The base port
 812	  addresses for the devices may be configured via the base module
 813	  parameter. The interrupt line numbers for the devices may be
 814	  configured via the irq module parameter.
 815
 816endmenu
 817
 818menu "I2C GPIO expanders"
 819	depends on I2C
 820
 821config GPIO_ADP5588
 822	tristate "ADP5588 I2C GPIO expander"
 823	help
 824	  This option enables support for 18 GPIOs found
 825	  on Analog Devices ADP5588 GPIO Expanders.
 826
 827config GPIO_ADP5588_IRQ
 828	bool "Interrupt controller support for ADP5588"
 829	depends on GPIO_ADP5588=y
 830	select GPIOLIB_IRQCHIP
 831	help
 832	  Say yes here to enable the adp5588 to be used as an interrupt
 833	  controller. It requires the driver to be built in the kernel.
 834
 835config GPIO_ADNP
 836	tristate "Avionic Design N-bit GPIO expander"
 837	depends on OF_GPIO
 838	select GPIOLIB_IRQCHIP
 839	help
 840	  This option enables support for N GPIOs found on Avionic Design
 841	  I2C GPIO expanders. The register space will be extended by powers
 842	  of two, so the controller will need to accommodate for that. For
 843	  example: if a controller provides 48 pins, 6 registers will be
 844	  enough to represent all pins, but the driver will assume a
 845	  register layout for 64 pins (8 registers).
 846
 847config GPIO_GW_PLD
 848	tristate "Gateworks PLD GPIO Expander"
 849	depends on OF_GPIO
 850	help
 851	  Say yes here to provide access to the Gateworks I2C PLD GPIO
 852	  Expander. This is used at least on the Cambria GW2358-4.
 853
 854config GPIO_MAX7300
 855	tristate "Maxim MAX7300 GPIO expander"
 856	select GPIO_MAX730X
 857	help
 858	  GPIO driver for Maxim MAX7300 I2C-based GPIO expander.
 859
 860config GPIO_MAX732X
 861	tristate "MAX7319, MAX7320-7327 I2C Port Expanders"
 862	help
 863	  Say yes here to support the MAX7319, MAX7320-7327 series of I2C
 864	  Port Expanders. Each IO port on these chips has a fixed role of
 865	  Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
 866	  Input and Output (designed by 'P'). The combinations are listed
 867	  below:
 868
 869	  8 bits:       max7319 (8I), max7320 (8O), max7321 (8P),
 870	                max7322 (4I4O), max7323 (4P4O)
 871
 872	  16 bits:      max7324 (8I8O), max7325 (8P8O),
 873	                max7326 (4I12O), max7327 (4P12O)
 874
 875	  Board setup code must specify the model to use, and the start
 876	  number for these GPIOs.
 877
 878config GPIO_MAX732X_IRQ
 879	bool "Interrupt controller support for MAX732x"
 880	depends on GPIO_MAX732X=y
 881	select GPIOLIB_IRQCHIP
 882	help
 883	  Say yes here to enable the max732x to be used as an interrupt
 884	  controller. It requires the driver to be built in the kernel.
 885
 886config GPIO_MC9S08DZ60
 887	bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
 888	depends on I2C=y && MACH_MX35_3DS
 889	help
 890	  Select this to enable the MC9S08DZ60 GPIO driver
 891
 892config GPIO_PCA953X
 893	tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
 894	select REGMAP_I2C
 895	help
 896	  Say yes here to provide access to several register-oriented
 897	  SMBus I/O expanders, made mostly by NXP or TI.  Compatible
 898	  models include:
 899
 900	  4 bits:       pca9536, pca9537
 901
 902	  8 bits:       max7310, max7315, pca6107, pca9534, pca9538, pca9554,
 903	                pca9556, pca9557, pca9574, tca6408, tca9554, xra1202
 904
 905	  16 bits:      max7312, max7313, pca9535, pca9539, pca9555, pca9575,
 906	                tca6416
 907
 908	  24 bits:      tca6424
 909
 910	  40 bits:      pca9505, pca9698
 911
 912config GPIO_PCA953X_IRQ
 913	bool "Interrupt controller support for PCA953x"
 914	depends on GPIO_PCA953X=y
 915	select GPIOLIB_IRQCHIP
 916	help
 917	  Say yes here to enable the pca953x to be used as an interrupt
 918	  controller. It requires the driver to be built in the kernel.
 919
 920config GPIO_PCF857X
 921	tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders"
 922	select GPIOLIB_IRQCHIP
 923	select IRQ_DOMAIN
 924	help
 925	  Say yes here to provide access to most "quasi-bidirectional" I2C
 926	  GPIO expanders used for additional digital outputs or inputs.
 927	  Most of these parts are from NXP, though TI is a second source for
 928	  some of them.  Compatible models include:
 929
 930	  8 bits:   pcf8574, pcf8574a, pca8574, pca8574a,
 931	            pca9670, pca9672, pca9674, pca9674a,
 932	            max7328, max7329
 933
 934	  16 bits:  pcf8575, pcf8575c, pca8575,
 935	            pca9671, pca9673, pca9675
 936
 937	  Your board setup code will need to declare the expanders in
 938	  use, and assign numbers to the GPIOs they expose.  Those GPIOs
 939	  can then be used from drivers and other kernel code, just like
 940	  other GPIOs, but only accessible from task contexts.
 941
 942	  This driver provides an in-kernel interface to those GPIOs using
 943	  platform-neutral GPIO calls.
 944
 
 
 
 
 
 
 
 
 
 
 
 
 945config GPIO_TPIC2810
 946	tristate "TPIC2810 8-Bit I2C GPO expander"
 947	help
 948	  Say yes here to enable the GPO driver for the TI TPIC2810 chip.
 949
 950	  To compile this driver as a module, choose M here: the module will
 951	  be called gpio-tpic2810.
 952
 953config GPIO_TS4900
 954	tristate "Technologic Systems FPGA I2C GPIO"
 955	depends on SOC_IMX6 || COMPILE_TEST
 956	select REGMAP_I2C
 957	help
 958	  Say yes here to enabled the GPIO driver for Technologic's FPGA core.
 959	  Series supported include TS-4100, TS-4900, TS-7970 and TS-7990.
 960
 961endmenu
 962
 963menu "MFD GPIO expanders"
 964
 965config GPIO_ADP5520
 966	tristate "GPIO Support for ADP5520 PMIC"
 967	depends on PMIC_ADP5520
 968	help
 969	  This option enables support for on-chip GPIO found
 970	  on Analog Devices ADP5520 PMICs.
 971
 972config GPIO_ALTERA_A10SR
 973	tristate "Altera Arria10 System Resource GPIO"
 974	depends on MFD_ALTERA_A10SR
 975	help
 976	  Driver for Arria10 Development Kit GPIO expansion which
 977	  includes reads of pushbuttons and DIP switches as well
 978	  as writes to LEDs.
 979
 980config GPIO_ARIZONA
 981	tristate "Wolfson Microelectronics Arizona class devices"
 982	depends on MFD_ARIZONA
 983	help
 984	  Support for GPIOs on Wolfson Arizona class devices.
 985
 986config GPIO_BD70528
 987	tristate "ROHM BD70528 GPIO support"
 988	depends on MFD_ROHM_BD70528
 989	help
 990	  Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs
 991	  available on the ROHM PMIC in total. The GPIOs can also
 992	  generate interrupts.
 993
 994	  This driver can also be built as a module. If so, the module
 995	  will be called gpio-bd70528.
 996
 997config GPIO_BD9571MWV
 998	tristate "ROHM BD9571 GPIO support"
 999	depends on MFD_BD9571MWV
1000	help
1001	  Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs
1002	  available on the ROHM PMIC in total, both of which can also
1003	  generate interrupts.
1004
1005	  This driver can also be built as a module. If so, the module
1006	  will be called gpio-bd9571mwv.
1007
1008config GPIO_CRYSTAL_COVE
1009	tristate "GPIO support for Crystal Cove PMIC"
1010	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC
1011	select GPIOLIB_IRQCHIP
1012	help
1013	  Support for GPIO pins on Crystal Cove PMIC.
1014
1015	  Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC
1016	  inside.
1017
1018	  This driver can also be built as a module. If so, the module will be
1019	  called gpio-crystalcove.
1020
1021config GPIO_CS5535
1022	tristate "AMD CS5535/CS5536 GPIO support"
1023	depends on X86 || MIPS || COMPILE_TEST
1024	depends on MFD_CS5535
1025	help
1026	  The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that
1027	  can be used for quite a number of things.  The CS5535/6 is found on
1028	  AMD Geode and Lemote Yeeloong devices.
1029
1030	  If unsure, say N.
1031
1032config GPIO_DA9052
1033	tristate "Dialog DA9052 GPIO"
1034	depends on PMIC_DA9052
1035	help
1036	  Say yes here to enable the GPIO driver for the DA9052 chip.
1037
1038config GPIO_DA9055
1039	tristate "Dialog Semiconductor DA9055 GPIO"
1040	depends on MFD_DA9055
1041	help
1042	  Say yes here to enable the GPIO driver for the DA9055 chip.
1043
1044	  The Dialog DA9055 PMIC chip has 3 GPIO pins that can be
1045	  be controller by this driver.
1046
1047	  If driver is built as a module it will be called gpio-da9055.
1048
1049config GPIO_DLN2
1050	tristate "Diolan DLN2 GPIO support"
1051	depends on MFD_DLN2
1052	select GPIOLIB_IRQCHIP
1053
1054	help
1055	  Select this option to enable GPIO driver for the Diolan DLN2
1056	  board.
1057
1058	  This driver can also be built as a module. If so, the module
1059	  will be called gpio-dln2.
1060
1061config HTC_EGPIO
1062	bool "HTC EGPIO support"
1063	depends on GPIOLIB && ARM
1064	help
1065	  This driver supports the CPLD egpio chip present on
1066	  several HTC phones.  It provides basic support for input
1067	  pins, output pins, and irqs.
1068
1069config GPIO_JANZ_TTL
1070	tristate "Janz VMOD-TTL Digital IO Module"
1071	depends on MFD_JANZ_CMODIO
1072	help
1073	  This enables support for the Janz VMOD-TTL Digital IO module.
1074	  This driver provides support for driving the pins in output
1075	  mode only. Input mode is not supported.
1076
1077config GPIO_KEMPLD
1078	tristate "Kontron ETX / COMexpress GPIO"
1079	depends on MFD_KEMPLD
1080	help
1081	  This enables support for the PLD GPIO interface on some Kontron ETX
1082	  and COMexpress (ETXexpress) modules.
1083
1084	  This driver can also be built as a module. If so, the module will be
1085	  called gpio-kempld.
1086
1087config GPIO_LP3943
1088	tristate "TI/National Semiconductor LP3943 GPIO expander"
1089	depends on MFD_LP3943
1090	help
1091	  GPIO driver for LP3943 MFD.
1092	  LP3943 can be used as a GPIO expander which provides up to 16 GPIOs.
1093	  Open drain outputs are required for this usage.
1094
1095config GPIO_LP873X
1096	tristate "TI LP873X GPO"
1097	depends on MFD_TI_LP873X
1098	help
1099	  This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present
1100	  on LP873X PMICs.
1101
1102	  This driver can also be built as a module. If so, the module will be
1103	  called gpio-lp873x.
1104
1105config GPIO_LP87565
1106	tristate "TI LP87565 GPIO"
1107	depends on MFD_TI_LP87565
1108	help
1109	  This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present
1110	  on LP87565 PMICs.
1111
1112	  This driver can also be built as a module. If so, the module will be
1113	  called gpio-lp87565.
1114
1115config GPIO_MADERA
1116	tristate "Cirrus Logic Madera class codecs"
1117	depends on PINCTRL_MADERA
1118	help
1119	  Support for GPIOs on Cirrus Logic Madera class codecs.
1120
1121config GPIO_MAX77620
1122	tristate "GPIO support for PMIC MAX77620 and MAX20024"
1123	depends on MFD_MAX77620
1124	help
1125	  GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor.
1126	  MAX77620 PMIC has 8 pins that can be configured as GPIOs. The
1127	  driver also provides interrupt support for each of the gpios.
1128	  Say yes here to enable the max77620 to be used as gpio controller.
1129
1130config GPIO_MAX77650
1131	tristate "Maxim MAX77650/77651 GPIO support"
1132	depends on MFD_MAX77650
1133	help
1134	  GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor.
1135	  These chips have a single pin that can be configured as GPIO.
1136
1137config GPIO_MSIC
1138	bool "Intel MSIC mixed signal gpio support"
1139	depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC
1140	help
1141	  Enable support for GPIO on intel MSIC controllers found in
1142	  intel MID devices
1143
1144config GPIO_PALMAS
1145	bool "TI PALMAS series PMICs GPIO"
1146	depends on MFD_PALMAS
1147	help
1148	  Select this option to enable GPIO driver for the TI PALMAS
1149	  series chip family.
1150
1151config GPIO_RC5T583
1152	bool "RICOH RC5T583 GPIO"
1153	depends on MFD_RC5T583
1154	help
1155	  Select this option to enable GPIO driver for the Ricoh RC5T583
1156	  chip family.
1157	  This driver provides the support for driving/reading the gpio pins
1158	  of RC5T583 device through standard gpio library.
1159
1160config GPIO_STMPE
1161	bool "STMPE GPIOs"
1162	depends on MFD_STMPE
1163	depends on OF_GPIO
1164	select GPIOLIB_IRQCHIP
1165	help
1166	  This enables support for the GPIOs found on the STMPE I/O
1167	  Expanders.
1168
1169config GPIO_TC3589X
1170	bool "TC3589X GPIOs"
1171	depends on MFD_TC3589X
1172	depends on OF_GPIO
1173	select GPIOLIB_IRQCHIP
1174	help
1175	  This enables support for the GPIOs found on the TC3589X
1176	  I/O Expander.
1177
1178config GPIO_TIMBERDALE
1179	bool "Support for timberdale GPIO IP"
1180	depends on MFD_TIMBERDALE
1181	---help---
1182	Add support for the GPIO IP in the timberdale FPGA.
1183
1184config GPIO_TPS65086
1185	tristate "TI TPS65086 GPO"
1186	depends on MFD_TPS65086
1187	help
1188	  This driver supports the GPO on TI TPS65086x PMICs.
1189
1190config GPIO_TPS65218
1191	tristate "TPS65218 GPIO"
1192	depends on MFD_TPS65218
1193	help
1194	  Select this option to enable GPIO driver for the TPS65218
1195	  chip family.
1196
1197config GPIO_TPS6586X
1198	bool "TPS6586X GPIO"
1199	depends on MFD_TPS6586X
1200	help
1201	  Select this option to enable GPIO driver for the TPS6586X
1202	  chip family.
1203
1204config GPIO_TPS65910
1205	bool "TPS65910 GPIO"
1206	depends on MFD_TPS65910
1207	help
1208	  Select this option to enable GPIO driver for the TPS65910
1209	  chip family.
1210
1211config GPIO_TPS65912
1212	tristate "TI TPS65912 GPIO"
1213	depends on MFD_TPS65912
1214	help
1215	  This driver supports TPS65912 gpio chip
1216
1217config GPIO_TPS68470
1218	bool "TPS68470 GPIO"
1219	depends on MFD_TPS68470
1220	help
1221	  Select this option to enable GPIO driver for the TPS68470
1222	  chip family.
1223	  There are 7 GPIOs and few sensor related GPIOs supported
1224	  by the TPS68470. While the 7 GPIOs can be configured as
1225	  input or output as appropriate, the sensor related GPIOs
1226	  are "output only" GPIOs.
1227
1228	  This driver config is bool, as the GPIO functionality
1229	  of the TPS68470 must be available before dependent
1230	  drivers are loaded.
1231
1232config GPIO_TQMX86
1233	tristate "TQ-Systems QTMX86 GPIO"
1234	depends on MFD_TQMX86 || COMPILE_TEST
1235	select GPIOLIB_IRQCHIP
1236	help
1237	  This driver supports GPIO on the TQMX86 IO controller.
1238
1239config GPIO_TWL4030
1240	tristate "TWL4030, TWL5030, and TPS659x0 GPIOs"
1241	depends on TWL4030_CORE
1242	help
1243	  Say yes here to access the GPIO signals of various multi-function
1244	  power management chips from Texas Instruments.
1245
1246config GPIO_TWL6040
1247	tristate "TWL6040 GPO"
1248	depends on TWL6040_CORE
1249	help
1250	  Say yes here to access the GPO signals of twl6040
1251	  audio chip from Texas Instruments.
1252
1253config GPIO_UCB1400
1254	tristate "Philips UCB1400 GPIO"
1255	depends on UCB1400_CORE
1256	help
1257	  This enables support for the Philips UCB1400 GPIO pins.
1258	  The UCB1400 is an AC97 audio codec.
1259
1260config GPIO_WHISKEY_COVE
1261	tristate "GPIO support for Whiskey Cove PMIC"
1262	depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
1263	select GPIOLIB_IRQCHIP
1264	help
1265	  Support for GPIO pins on Whiskey Cove PMIC.
1266
1267	  Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC
1268	  inside.
1269
1270	  This driver can also be built as a module. If so, the module will be
1271	  called gpio-wcove.
1272
1273config GPIO_WM831X
1274	tristate "WM831x GPIOs"
1275	depends on MFD_WM831X
1276	help
1277	  Say yes here to access the GPIO signals of WM831x power management
1278	  chips from Wolfson Microelectronics.
1279
1280config GPIO_WM8350
1281	tristate "WM8350 GPIOs"
1282	depends on MFD_WM8350
1283	help
1284	  Say yes here to access the GPIO signals of WM8350 power management
1285	  chips from Wolfson Microelectronics.
1286
1287config GPIO_WM8994
1288	tristate "WM8994 GPIOs"
1289	depends on MFD_WM8994
1290	help
1291	  Say yes here to access the GPIO signals of WM8994 audio hub
1292	  CODECs from Wolfson Microelectronics.
1293
1294endmenu
1295
1296menu "PCI GPIO expanders"
1297	depends on PCI
1298
1299config GPIO_AMD8111
1300	tristate "AMD 8111 GPIO driver"
1301	depends on X86 || COMPILE_TEST
1302	help
1303	  The AMD 8111 south bridge contains 32 GPIO pins which can be used.
1304
1305	  Note, that usually system firmware/ACPI handles GPIO pins on their
1306	  own and users might easily break their systems with uncarefull usage
1307	  of this driver!
1308
1309	  If unsure, say N
1310
1311config GPIO_BT8XX
1312	tristate "BT8XX GPIO abuser"
1313	depends on VIDEO_BT848=n
1314	help
1315	  The BT8xx frame grabber chip has 24 GPIO pins that can be abused
1316	  as a cheap PCI GPIO card.
1317
1318	  This chip can be found on Miro, Hauppauge and STB TV-cards.
1319
1320	  The card needs to be physically altered for using it as a
1321	  GPIO card. For more information on how to build a GPIO card
1322	  from a BT8xx TV card, see the documentation file at
1323	  Documentation/driver-api/bt8xxgpio.rst
1324
1325	  If unsure, say N.
1326
1327config GPIO_INTEL_MID
1328	bool "Intel MID GPIO support"
1329	depends on X86_INTEL_MID
1330	select GPIOLIB_IRQCHIP
1331	help
1332	  Say Y here to support Intel MID GPIO.
1333
1334config GPIO_MERRIFIELD
1335	tristate "Intel Merrifield GPIO support"
1336	depends on X86_INTEL_MID
1337	select GPIOLIB_IRQCHIP
1338	help
1339	  Say Y here to support Intel Merrifield GPIO.
1340
1341config GPIO_MLXBF
1342	tristate "Mellanox BlueField SoC GPIO"
1343	depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST)
1344	select GPIO_GENERIC
1345	help
1346	  Say Y here if you want GPIO support on Mellanox BlueField SoC.
1347
1348config GPIO_ML_IOH
1349	tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support"
1350	depends on X86 || COMPILE_TEST
1351	select GENERIC_IRQ_CHIP
1352	help
1353	  ML7213 is companion chip for Intel Atom E6xx series.
1354	  This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output
1355	  Hub) which is for IVI(In-Vehicle Infotainment) use.
1356	  This driver can access the IOH's GPIO device.
1357
1358config GPIO_PCH
1359	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
1360	depends on X86_32 || MIPS || COMPILE_TEST
1361	select GENERIC_IRQ_CHIP
1362	help
1363	  This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff
1364	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1365	  This driver can access PCH GPIO device.
1366
1367	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1368	  Output Hub), ML7223 and ML7831.
1369	  ML7223 IOH is for MP(Media Phone) use.
1370	  ML7831 IOH is for general purpose use.
1371	  ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1372	  ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1373
1374config GPIO_PCI_IDIO_16
1375	tristate "ACCES PCI-IDIO-16 GPIO support"
1376	select GPIOLIB_IRQCHIP
1377	help
1378	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
1379	  generated when any of the inputs change state (low to high or high to
1380	  low). Input filter control is not supported by this driver, and the
1381	  input filters are deactivated by this driver.
1382
1383config GPIO_PCIE_IDIO_24
1384	tristate "ACCES PCIe-IDIO-24 GPIO support"
1385	select GPIOLIB_IRQCHIP
1386	help
1387	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
1388	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated
1389	  when any of the inputs change state (low to high or high to low).
1390	  Input filter control is not supported by this driver, and the input
1391	  filters are deactivated by this driver.
1392
1393config GPIO_RDC321X
1394	tristate "RDC R-321x GPIO support"
1395	select MFD_CORE
1396	select MFD_RDC321X
1397	help
1398	  Support for the RDC R321x SoC GPIOs over southbridge
1399	  PCI configuration space.
1400
1401config GPIO_SODAVILLE
1402	bool "Intel Sodaville GPIO support"
1403	depends on X86 && OF
1404	select GPIO_GENERIC
1405	select GENERIC_IRQ_CHIP
1406	help
1407	  Say Y here to support Intel Sodaville GPIO.
1408
1409endmenu
1410
1411menu "SPI GPIO expanders"
1412	depends on SPI_MASTER
1413
1414config GPIO_74X164
1415	tristate "74x164 serial-in/parallel-out 8-bits shift register"
1416	depends on OF_GPIO
1417	help
1418	  Driver for 74x164 compatible serial-in/parallel-out 8-outputs
1419	  shift registers. This driver can be used to provide access
1420	  to more gpio outputs.
1421
1422config GPIO_MAX3191X
1423	tristate "Maxim MAX3191x industrial serializer"
1424	select CRC8
1425	help
1426	  GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913,
1427	  MAX31953 and MAX31963 industrial serializer, a daisy-chainable
1428	  chip to make 8 digital 24V inputs available via SPI.  Supports
1429	  CRC checksums to guard against electromagnetic interference,
1430	  as well as undervoltage and overtemperature detection.
1431
1432config GPIO_MAX7301
1433	tristate "Maxim MAX7301 GPIO expander"
1434	select GPIO_MAX730X
1435	help
1436	  GPIO driver for Maxim MAX7301 SPI-based GPIO expander.
1437
1438config GPIO_MC33880
1439	tristate "Freescale MC33880 high-side/low-side switch"
1440	help
1441	  SPI driver for Freescale MC33880 high-side/low-side switch.
1442	  This provides GPIO interface supporting inputs and outputs.
1443
1444config GPIO_PISOSR
1445	tristate "Generic parallel-in/serial-out shift register"
1446	help
1447	  GPIO driver for SPI compatible parallel-in/serial-out shift
1448	  registers. These are input only devices.
1449
1450config GPIO_XRA1403
1451	tristate "EXAR XRA1403 16-bit GPIO expander"
1452	select REGMAP_SPI
1453	help
1454	  GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander.
1455
1456config GPIO_MOXTET
1457	tristate "Turris Mox Moxtet bus GPIO expander"
1458	depends on MOXTET
1459	help
1460	  Say yes here if you are building for the Turris Mox router.
1461	  This is the driver needed for configuring the GPIOs via the Moxtet
1462	  bus. For example the Mox module with SFP cage needs this driver
1463	  so that phylink can use corresponding GPIOs.
1464
1465endmenu
1466
1467menu "USB GPIO expanders"
1468	depends on USB
1469
1470config GPIO_VIPERBOARD
1471	tristate "Viperboard GPIO a & b support"
1472	depends on MFD_VIPERBOARD
1473	help
1474	  Say yes here to access the GPIO signals of Nano River
1475	  Technologies Viperboard. There are two GPIO chips on the
1476	  board: gpioa and gpiob.
1477	  See viperboard API specification and Nano
1478	  River Tech's viperboard.h for detailed meaning
1479	  of the module parameters.
1480
1481endmenu
1482
1483config GPIO_MOCKUP
1484	tristate "GPIO Testing Driver"
1485	select IRQ_SIM
1486	help
1487	  This enables GPIO Testing driver, which provides a way to test GPIO
1488	  subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS
1489	  must be selected for this test.
1490	  User could use it through the script in
1491	  tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in
1492	  it.
1493
1494endif