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 IRQ_DOMAIN_HIERARCHY 550 select IRQ_FASTEOI_HIERARCHY_HANDLERS 551 help 552 Say yes here to support the on-chip GPIO lines on the ThunderX 553 and OCTEON-TX families of SoCs. 554 555config GPIO_UNIPHIER 556 tristate "UniPhier GPIO support" 557 depends on ARCH_UNIPHIER || COMPILE_TEST 558 depends on OF_GPIO 559 select IRQ_DOMAIN_HIERARCHY 560 help 561 Say yes here to support UniPhier GPIOs. 562 563config GPIO_VF610 564 def_bool y 565 depends on ARCH_MXC && SOC_VF610 566 select GPIOLIB_IRQCHIP 567 help 568 Say yes here to support Vybrid vf610 GPIOs. 569 570config GPIO_VR41XX 571 tristate "NEC VR4100 series General-purpose I/O Uint support" 572 depends on CPU_VR41XX 573 help 574 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 575 576config GPIO_VX855 577 tristate "VIA VX855/VX875 GPIO" 578 depends on (X86 || COMPILE_TEST) && PCI 579 select MFD_CORE 580 select MFD_VX855 581 help 582 Support access to the VX855/VX875 GPIO lines through the gpio library. 583 584 This driver provides common support for accessing the device, 585 additional drivers must be enabled in order to use the 586 functionality of the device. 587 588config GPIO_XGENE 589 bool "APM X-Gene GPIO controller support" 590 depends on ARM64 && OF_GPIO 591 help 592 This driver is to support the GPIO block within the APM X-Gene SoC 593 platform's generic flash controller. The GPIO pins are muxed with 594 the generic flash controller's address and data pins. Say yes 595 here to enable the GFC GPIO functionality. 596 597config GPIO_XGENE_SB 598 tristate "APM X-Gene GPIO standby controller support" 599 depends on ARCH_XGENE && OF_GPIO 600 select GPIO_GENERIC 601 select GPIOLIB_IRQCHIP 602 select IRQ_DOMAIN_HIERARCHY 603 help 604 This driver supports the GPIO block within the APM X-Gene 605 Standby Domain. Say yes here to enable the GPIO functionality. 606 607config GPIO_XILINX 608 tristate "Xilinx GPIO support" 609 help 610 Say yes here to support the Xilinx FPGA GPIO device 611 612config GPIO_XLP 613 tristate "Netlogic XLP GPIO support" 614 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 615 select GPIOLIB_IRQCHIP 616 help 617 This driver provides support for GPIO interface on Netlogic XLP MIPS64 618 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 619 XLP9XX and XLP5XX. The same GPIO controller block is also present in 620 Cavium's ThunderX2 CN99XX SoCs. 621 622 If unsure, say N. 623 624config GPIO_XTENSA 625 bool "Xtensa GPIO32 support" 626 depends on XTENSA 627 depends on HAVE_XTENSA_GPIO32 628 depends on !SMP 629 help 630 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 631 and EXPSTATE (output) ports 632 633config GPIO_ZEVIO 634 bool "LSI ZEVIO SoC memory mapped GPIOs" 635 depends on ARM && OF_GPIO 636 help 637 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 638 639config GPIO_ZYNQ 640 tristate "Xilinx Zynq GPIO support" 641 depends on ARCH_ZYNQ || ARCH_ZYNQMP 642 select GPIOLIB_IRQCHIP 643 help 644 Say yes here to support Xilinx Zynq GPIO controller. 645 646config GPIO_ZX 647 bool "ZTE ZX GPIO support" 648 depends on ARCH_ZX || COMPILE_TEST 649 select GPIOLIB_IRQCHIP 650 help 651 Say yes here to support the GPIO device on ZTE ZX SoCs. 652 653config GPIO_LOONGSON1 654 tristate "Loongson1 GPIO support" 655 depends on MACH_LOONGSON32 656 select GPIO_GENERIC 657 help 658 Say Y or M here to support GPIO on Loongson1 SoCs. 659 660config GPIO_AMD_FCH 661 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 662 help 663 This option enables driver for GPIO on AMDs Fusion Controller Hub, 664 as found on G-series SOCs (eg. GX-412TC) 665 666 Note: This driver doesn't registers itself automatically, as it 667 needs to be provided with platform specific configuration. 668 (See eg. CONFIG_PCENGINES_APU2.) 669endmenu 670 671menu "Port-mapped I/O GPIO drivers" 672 depends on X86 # Unconditional I/O space access 673 674config GPIO_104_DIO_48E 675 tristate "ACCES 104-DIO-48E GPIO support" 676 depends on PC104 677 select ISA_BUS_API 678 select GPIOLIB_IRQCHIP 679 help 680 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 681 104-DIO-24E). The base port addresses for the devices may be 682 configured via the base module parameter. The interrupt line numbers 683 for the devices may be configured via the irq module parameter. 684 685config GPIO_104_IDIO_16 686 tristate "ACCES 104-IDIO-16 GPIO support" 687 depends on PC104 688 select ISA_BUS_API 689 select GPIOLIB_IRQCHIP 690 help 691 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 692 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 693 base port addresses for the devices may be configured via the base 694 module parameter. The interrupt line numbers for the devices may be 695 configured via the irq module parameter. 696 697config GPIO_104_IDI_48 698 tristate "ACCES 104-IDI-48 GPIO support" 699 depends on PC104 700 select ISA_BUS_API 701 select GPIOLIB_IRQCHIP 702 help 703 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 704 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 705 the devices may be configured via the base module parameter. The 706 interrupt line numbers for the devices may be configured via the irq 707 module parameter. 708 709config GPIO_F7188X 710 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 711 help 712 This option enables support for GPIOs found on Fintek Super-I/O 713 chips F71869, F71869A, F71882FG, F71889F and F81866. 714 715 To compile this driver as a module, choose M here: the module will 716 be called f7188x-gpio. 717 718config GPIO_GPIO_MM 719 tristate "Diamond Systems GPIO-MM GPIO support" 720 depends on PC104 721 select ISA_BUS_API 722 help 723 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 724 725 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 726 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 727 support for these 48 channels of digital I/O. 728 729 The base port addresses for the devices may be configured via the base 730 array module parameter. 731 732config GPIO_IT87 733 tristate "IT87xx GPIO support" 734 help 735 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 736 737 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 738 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 739 well. 740 741 To compile this driver as a module, choose M here: the module will 742 be called gpio_it87 743 744config GPIO_SCH 745 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 746 depends on (X86 || COMPILE_TEST) && PCI 747 select MFD_CORE 748 select LPC_SCH 749 help 750 Say yes here to support GPIO interface on Intel Poulsbo SCH, 751 Intel Tunnel Creek processor, Intel Centerton processor or 752 Intel Quark X1000 SoC. 753 754 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 755 powered by the core power rail and are turned off during sleep 756 modes (S3 and higher). The remaining four GPIOs are powered by 757 the Intel SCH suspend power supply. These GPIOs remain 758 active during S3. The suspend powered GPIOs can be used to wake the 759 system from the Suspend-to-RAM state. 760 761 The Intel Tunnel Creek processor has 5 GPIOs powered by the 762 core power rail and 9 from suspend power supply. 763 764 The Intel Centerton processor has a total of 30 GPIO pins. 765 Twenty-one are powered by the core power rail and 9 from the 766 suspend power supply. 767 768 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 769 power well and 6 from the suspend power well. 770 771config GPIO_SCH311X 772 tristate "SMSC SCH311x SuperI/O GPIO" 773 help 774 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 775 SCH3116 "Super I/O" chipsets. 776 777 To compile this driver as a module, choose M here: the module will 778 be called gpio-sch311x. 779 780config GPIO_TS5500 781 tristate "TS-5500 DIO blocks and compatibles" 782 depends on TS5500 || COMPILE_TEST 783 help 784 This driver supports Digital I/O exposed by pin blocks found on some 785 Technologic Systems platforms. It includes, but is not limited to, 3 786 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 787 LCD port. 788 789config GPIO_WINBOND 790 tristate "Winbond Super I/O GPIO support" 791 select ISA_BUS_API 792 help 793 This option enables support for GPIOs found on Winbond Super I/O 794 chips. 795 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 796 supported. 797 798 You will need to provide a module parameter "gpios", or a 799 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 800 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 801 802 To compile this driver as a module, choose M here: the module will 803 be called gpio-winbond. 804 805config GPIO_WS16C48 806 tristate "WinSystems WS16C48 GPIO support" 807 select ISA_BUS_API 808 select GPIOLIB_IRQCHIP 809 help 810 Enables GPIO support for the WinSystems WS16C48. The base port 811 addresses for the devices may be configured via the base module 812 parameter. The interrupt line numbers for the devices may be 813 configured via the irq module parameter. 814 815endmenu 816 817menu "I2C GPIO expanders" 818 depends on I2C 819 820config GPIO_ADP5588 821 tristate "ADP5588 I2C GPIO expander" 822 help 823 This option enables support for 18 GPIOs found 824 on Analog Devices ADP5588 GPIO Expanders. 825 826config GPIO_ADP5588_IRQ 827 bool "Interrupt controller support for ADP5588" 828 depends on GPIO_ADP5588=y 829 select GPIOLIB_IRQCHIP 830 help 831 Say yes here to enable the adp5588 to be used as an interrupt 832 controller. It requires the driver to be built in the kernel. 833 834config GPIO_ADNP 835 tristate "Avionic Design N-bit GPIO expander" 836 depends on OF_GPIO 837 select GPIOLIB_IRQCHIP 838 help 839 This option enables support for N GPIOs found on Avionic Design 840 I2C GPIO expanders. The register space will be extended by powers 841 of two, so the controller will need to accommodate for that. For 842 example: if a controller provides 48 pins, 6 registers will be 843 enough to represent all pins, but the driver will assume a 844 register layout for 64 pins (8 registers). 845 846config GPIO_GW_PLD 847 tristate "Gateworks PLD GPIO Expander" 848 depends on OF_GPIO 849 help 850 Say yes here to provide access to the Gateworks I2C PLD GPIO 851 Expander. This is used at least on the Cambria GW2358-4. 852 853config GPIO_MAX7300 854 tristate "Maxim MAX7300 GPIO expander" 855 select GPIO_MAX730X 856 help 857 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 858 859config GPIO_MAX732X 860 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 861 help 862 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 863 Port Expanders. Each IO port on these chips has a fixed role of 864 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 865 Input and Output (designed by 'P'). The combinations are listed 866 below: 867 868 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 869 max7322 (4I4O), max7323 (4P4O) 870 871 16 bits: max7324 (8I8O), max7325 (8P8O), 872 max7326 (4I12O), max7327 (4P12O) 873 874 Board setup code must specify the model to use, and the start 875 number for these GPIOs. 876 877config GPIO_MAX732X_IRQ 878 bool "Interrupt controller support for MAX732x" 879 depends on GPIO_MAX732X=y 880 select GPIOLIB_IRQCHIP 881 help 882 Say yes here to enable the max732x to be used as an interrupt 883 controller. It requires the driver to be built in the kernel. 884 885config GPIO_MC9S08DZ60 886 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 887 depends on I2C=y && MACH_MX35_3DS 888 help 889 Select this to enable the MC9S08DZ60 GPIO driver 890 891config GPIO_PCA953X 892 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 893 select REGMAP_I2C 894 help 895 Say yes here to provide access to several register-oriented 896 SMBus I/O expanders, made mostly by NXP or TI. Compatible 897 models include: 898 899 4 bits: pca9536, pca9537 900 901 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 902 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 903 904 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 905 tca6416 906 907 24 bits: tca6424 908 909 40 bits: pca9505, pca9698 910 911config GPIO_PCA953X_IRQ 912 bool "Interrupt controller support for PCA953x" 913 depends on GPIO_PCA953X=y 914 select GPIOLIB_IRQCHIP 915 help 916 Say yes here to enable the pca953x to be used as an interrupt 917 controller. It requires the driver to be built in the kernel. 918 919config GPIO_PCF857X 920 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 921 select GPIOLIB_IRQCHIP 922 select IRQ_DOMAIN 923 help 924 Say yes here to provide access to most "quasi-bidirectional" I2C 925 GPIO expanders used for additional digital outputs or inputs. 926 Most of these parts are from NXP, though TI is a second source for 927 some of them. Compatible models include: 928 929 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 930 pca9670, pca9672, pca9674, pca9674a, 931 max7328, max7329 932 933 16 bits: pcf8575, pcf8575c, pca8575, 934 pca9671, pca9673, pca9675 935 936 Your board setup code will need to declare the expanders in 937 use, and assign numbers to the GPIOs they expose. Those GPIOs 938 can then be used from drivers and other kernel code, just like 939 other GPIOs, but only accessible from task contexts. 940 941 This driver provides an in-kernel interface to those GPIOs using 942 platform-neutral GPIO calls. 943 944config GPIO_TPIC2810 945 tristate "TPIC2810 8-Bit I2C GPO expander" 946 help 947 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 948 949 To compile this driver as a module, choose M here: the module will 950 be called gpio-tpic2810. 951 952config GPIO_TS4900 953 tristate "Technologic Systems FPGA I2C GPIO" 954 depends on SOC_IMX6 || COMPILE_TEST 955 select REGMAP_I2C 956 help 957 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 958 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 959 960endmenu 961 962menu "MFD GPIO expanders" 963 964config GPIO_ADP5520 965 tristate "GPIO Support for ADP5520 PMIC" 966 depends on PMIC_ADP5520 967 help 968 This option enables support for on-chip GPIO found 969 on Analog Devices ADP5520 PMICs. 970 971config GPIO_ALTERA_A10SR 972 tristate "Altera Arria10 System Resource GPIO" 973 depends on MFD_ALTERA_A10SR 974 help 975 Driver for Arria10 Development Kit GPIO expansion which 976 includes reads of pushbuttons and DIP switches as well 977 as writes to LEDs. 978 979config GPIO_ARIZONA 980 tristate "Wolfson Microelectronics Arizona class devices" 981 depends on MFD_ARIZONA 982 help 983 Support for GPIOs on Wolfson Arizona class devices. 984 985config GPIO_BD70528 986 tristate "ROHM BD70528 GPIO support" 987 depends on MFD_ROHM_BD70528 988 help 989 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs 990 available on the ROHM PMIC in total. The GPIOs can also 991 generate interrupts. 992 993 This driver can also be built as a module. If so, the module 994 will be called gpio-bd70528. 995 996config GPIO_BD9571MWV 997 tristate "ROHM BD9571 GPIO support" 998 depends on MFD_BD9571MWV 999 help 1000 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1001 available on the ROHM PMIC in total, both of which can also 1002 generate interrupts. 1003 1004 This driver can also be built as a module. If so, the module 1005 will be called gpio-bd9571mwv. 1006 1007config GPIO_CRYSTAL_COVE 1008 tristate "GPIO support for Crystal Cove PMIC" 1009 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1010 select GPIOLIB_IRQCHIP 1011 help 1012 Support for GPIO pins on Crystal Cove PMIC. 1013 1014 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 1015 inside. 1016 1017 This driver can also be built as a module. If so, the module will be 1018 called gpio-crystalcove. 1019 1020config GPIO_CS5535 1021 tristate "AMD CS5535/CS5536 GPIO support" 1022 depends on X86 || MIPS || COMPILE_TEST 1023 depends on MFD_CS5535 1024 help 1025 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1026 can be used for quite a number of things. The CS5535/6 is found on 1027 AMD Geode and Lemote Yeeloong devices. 1028 1029 If unsure, say N. 1030 1031config GPIO_DA9052 1032 tristate "Dialog DA9052 GPIO" 1033 depends on PMIC_DA9052 1034 help 1035 Say yes here to enable the GPIO driver for the DA9052 chip. 1036 1037config GPIO_DA9055 1038 tristate "Dialog Semiconductor DA9055 GPIO" 1039 depends on MFD_DA9055 1040 help 1041 Say yes here to enable the GPIO driver for the DA9055 chip. 1042 1043 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1044 be controller by this driver. 1045 1046 If driver is built as a module it will be called gpio-da9055. 1047 1048config GPIO_DLN2 1049 tristate "Diolan DLN2 GPIO support" 1050 depends on MFD_DLN2 1051 select GPIOLIB_IRQCHIP 1052 1053 help 1054 Select this option to enable GPIO driver for the Diolan DLN2 1055 board. 1056 1057 This driver can also be built as a module. If so, the module 1058 will be called gpio-dln2. 1059 1060config HTC_EGPIO 1061 bool "HTC EGPIO support" 1062 depends on GPIOLIB && ARM 1063 help 1064 This driver supports the CPLD egpio chip present on 1065 several HTC phones. It provides basic support for input 1066 pins, output pins, and irqs. 1067 1068config GPIO_JANZ_TTL 1069 tristate "Janz VMOD-TTL Digital IO Module" 1070 depends on MFD_JANZ_CMODIO 1071 help 1072 This enables support for the Janz VMOD-TTL Digital IO module. 1073 This driver provides support for driving the pins in output 1074 mode only. Input mode is not supported. 1075 1076config GPIO_KEMPLD 1077 tristate "Kontron ETX / COMexpress GPIO" 1078 depends on MFD_KEMPLD 1079 help 1080 This enables support for the PLD GPIO interface on some Kontron ETX 1081 and COMexpress (ETXexpress) modules. 1082 1083 This driver can also be built as a module. If so, the module will be 1084 called gpio-kempld. 1085 1086config GPIO_LP3943 1087 tristate "TI/National Semiconductor LP3943 GPIO expander" 1088 depends on MFD_LP3943 1089 help 1090 GPIO driver for LP3943 MFD. 1091 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1092 Open drain outputs are required for this usage. 1093 1094config GPIO_LP873X 1095 tristate "TI LP873X GPO" 1096 depends on MFD_TI_LP873X 1097 help 1098 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1099 on LP873X PMICs. 1100 1101 This driver can also be built as a module. If so, the module will be 1102 called gpio-lp873x. 1103 1104config GPIO_LP87565 1105 tristate "TI LP87565 GPIO" 1106 depends on MFD_TI_LP87565 1107 help 1108 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1109 on LP87565 PMICs. 1110 1111 This driver can also be built as a module. If so, the module will be 1112 called gpio-lp87565. 1113 1114config GPIO_MADERA 1115 tristate "Cirrus Logic Madera class codecs" 1116 depends on PINCTRL_MADERA 1117 help 1118 Support for GPIOs on Cirrus Logic Madera class codecs. 1119 1120config GPIO_MAX77620 1121 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1122 depends on MFD_MAX77620 1123 select GPIOLIB_IRQCHIP 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 1495