1 # 2 # GPIO infrastructure and drivers 3 # 4 5 config 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 13 menuconfig GPIOLIB 14 bool "GPIO Support" 15 select ANON_INODES 16 help 17 This enables GPIO support through the generic GPIO library. 18 You only need to enable this, if you also want to enable 19 one or more of the GPIO drivers below. 20 21 If unsure, say N. 22 23 if GPIOLIB 24 25 config GPIOLIB_FASTPATH_LIMIT 26 int "Maximum number of GPIOs for fast path" 27 range 32 512 28 default 512 29 help 30 This adjusts the point at which certain APIs will switch from 31 using a stack allocated buffer to a dynamically allocated buffer. 32 33 You shouldn't need to change this unless you really need to 34 optimize either stack space or performance. Change this carefully 35 since setting an incorrect value could cause stack corruption. 36 37 config OF_GPIO 38 def_bool y 39 depends on OF 40 depends on HAS_IOMEM 41 42 config GPIO_ACPI 43 def_bool y 44 depends on ACPI 45 46 config GPIOLIB_IRQCHIP 47 select IRQ_DOMAIN 48 bool 49 50 config DEBUG_GPIO 51 bool "Debug GPIO calls" 52 depends on DEBUG_KERNEL 53 help 54 Say Y here to add some extra checks and diagnostics to GPIO calls. 55 These checks help ensure that GPIOs have been properly initialized 56 before they are used, and that sleeping calls are not made from 57 non-sleeping contexts. They can make bitbanged serial protocols 58 slower. The diagnostics help catch the type of setup errors 59 that are most common when setting up new platforms or boards. 60 61 config GPIO_SYSFS 62 bool "/sys/class/gpio/... (sysfs interface)" 63 depends on SYSFS 64 help 65 Say Y here to add a sysfs interface for GPIOs. 66 67 This is mostly useful to work around omissions in a system's 68 kernel support. Those are common in custom and semicustom 69 hardware assembled using standard kernels with a minimum of 70 custom patches. In those cases, userspace code may import 71 a given GPIO from the kernel, if no kernel driver requested it. 72 73 Kernel drivers may also request that a particular GPIO be 74 exported to userspace; this can be useful when debugging. 75 76 config GPIO_GENERIC 77 depends on HAS_IOMEM # Only for IOMEM drivers 78 tristate 79 80 # put drivers in the right section, in alphabetical order 81 82 # This symbol is selected by both I2C and SPI expanders 83 config GPIO_MAX730X 84 tristate 85 86 menu "Memory mapped GPIO drivers" 87 depends on HAS_IOMEM 88 89 config GPIO_74XX_MMIO 90 tristate "GPIO driver for 74xx-ICs with MMIO access" 91 depends on OF_GPIO 92 select GPIO_GENERIC 93 help 94 Say yes here to support GPIO functionality for 74xx-compatible ICs 95 with MMIO access. Compatible models include: 96 1 bit: 741G125 (Input), 741G74 (Output) 97 2 bits: 742G125 (Input), 7474 (Output) 98 4 bits: 74125 (Input), 74175 (Output) 99 6 bits: 74365 (Input), 74174 (Output) 100 8 bits: 74244 (Input), 74273 (Output) 101 16 bits: 741624 (Input), 7416374 (Output) 102 103 config GPIO_ALTERA 104 tristate "Altera GPIO" 105 depends on OF_GPIO 106 select GPIOLIB_IRQCHIP 107 help 108 Say Y or M here to build support for the Altera PIO device. 109 110 If driver is built as a module it will be called gpio-altera. 111 112 config GPIO_AMDPT 113 tristate "AMD Promontory GPIO support" 114 depends on ACPI 115 select GPIO_GENERIC 116 help 117 driver for GPIO functionality on Promontory IOHub 118 Require ACPI ASL code to enumerate as a platform device. 119 120 config GPIO_ASPEED 121 tristate "Aspeed GPIO support" 122 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 123 select GPIOLIB_IRQCHIP 124 help 125 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 126 127 config GPIO_ATH79 128 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 129 default y if ATH79 130 depends on ATH79 || COMPILE_TEST 131 select GPIO_GENERIC 132 select GPIOLIB_IRQCHIP 133 help 134 Select this option to enable GPIO driver for 135 Atheros AR71XX/AR724X/AR913X SoC devices. 136 137 config GPIO_RASPBERRYPI_EXP 138 tristate "Raspberry Pi 3 GPIO Expander" 139 default RASPBERRYPI_FIRMWARE 140 depends on OF_GPIO 141 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 142 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 143 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 144 help 145 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 146 the firmware mailbox to communicate with VideoCore on BCM283x chips. 147 148 config GPIO_BCM_KONA 149 bool "Broadcom Kona GPIO" 150 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 151 help 152 Turn on GPIO support for Broadcom "Kona" chips. 153 154 config GPIO_BRCMSTB 155 tristate "BRCMSTB GPIO support" 156 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 157 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 158 select GPIO_GENERIC 159 select IRQ_DOMAIN 160 help 161 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 162 163 config GPIO_CLPS711X 164 tristate "CLPS711X GPIO support" 165 depends on ARCH_CLPS711X || COMPILE_TEST 166 select GPIO_GENERIC 167 help 168 Say yes here to support GPIO on CLPS711X SoCs. 169 170 config GPIO_DAVINCI 171 bool "TI Davinci/Keystone GPIO support" 172 default y if ARCH_DAVINCI 173 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 174 help 175 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 176 177 config GPIO_DWAPB 178 tristate "Synopsys DesignWare APB GPIO driver" 179 select GPIO_GENERIC 180 select GENERIC_IRQ_CHIP 181 help 182 Say Y or M here to build support for the Synopsys DesignWare APB 183 GPIO block. 184 185 config GPIO_EIC_SPRD 186 tristate "Spreadtrum EIC support" 187 depends on ARCH_SPRD || COMPILE_TEST 188 depends on OF_GPIO 189 select GPIOLIB_IRQCHIP 190 help 191 Say yes here to support Spreadtrum EIC device. 192 193 config GPIO_EM 194 tristate "Emma Mobile GPIO" 195 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 196 help 197 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 198 199 config GPIO_EP93XX 200 def_bool y 201 depends on ARCH_EP93XX 202 select GPIO_GENERIC 203 204 config GPIO_EXAR 205 tristate "Support for GPIO pins on XR17V352/354/358" 206 depends on SERIAL_8250_EXAR 207 help 208 Selecting this option will enable handling of GPIO pins present 209 on Exar XR17V352/354/358 chips. 210 211 config GPIO_GE_FPGA 212 bool "GE FPGA based GPIO" 213 depends on GE_FPGA 214 select GPIO_GENERIC 215 help 216 Support for common GPIO functionality provided on some GE Single Board 217 Computers. 218 219 This driver provides basic support (configure as input or output, read 220 and write pin state) for GPIO implemented in a number of GE single 221 board computers. 222 223 config GPIO_FTGPIO010 224 bool "Faraday FTGPIO010 GPIO" 225 depends on OF_GPIO 226 select GPIO_GENERIC 227 select GPIOLIB_IRQCHIP 228 default (ARCH_GEMINI || ARCH_MOXART) 229 help 230 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 231 Cortina systems Gemini platforms, Moxa ART and others. 232 233 config GPIO_GENERIC_PLATFORM 234 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 235 select GPIO_GENERIC 236 help 237 Say yes here to support basic platform_device memory-mapped GPIO controllers. 238 239 config GPIO_GRGPIO 240 tristate "Aeroflex Gaisler GRGPIO support" 241 depends on OF_GPIO 242 select GPIO_GENERIC 243 select IRQ_DOMAIN 244 help 245 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 246 VHDL IP core library. 247 248 config GPIO_HLWD 249 tristate "Nintendo Wii (Hollywood) GPIO" 250 depends on OF_GPIO 251 select GPIO_GENERIC 252 help 253 Select this to support the GPIO controller of the Nintendo Wii. 254 255 If unsure, say N. 256 257 config GPIO_ICH 258 tristate "Intel ICH GPIO" 259 depends on PCI && X86 260 select MFD_CORE 261 select LPC_ICH 262 help 263 Say yes here to support the GPIO functionality of a number of Intel 264 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 265 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 266 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 267 268 If unsure, say N. 269 270 config GPIO_INGENIC 271 tristate "Ingenic JZ47xx SoCs GPIO support" 272 depends on OF 273 depends on MACH_INGENIC || COMPILE_TEST 274 select GPIOLIB_IRQCHIP 275 help 276 Say yes here to support the GPIO functionality present on the 277 JZ4740 and JZ4780 SoCs from Ingenic. 278 279 If unsure, say N. 280 281 config GPIO_IOP 282 tristate "Intel IOP GPIO" 283 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST 284 select GPIO_GENERIC 285 help 286 Say yes here to support the GPIO functionality of a number of Intel 287 IOP32X or IOP33X. 288 289 If unsure, say N. 290 291 config GPIO_LOONGSON 292 bool "Loongson-2/3 GPIO support" 293 depends on CPU_LOONGSON2 || CPU_LOONGSON3 294 help 295 driver for GPIO functionality on Loongson-2F/3A/3B processors. 296 297 config GPIO_LPC18XX 298 tristate "NXP LPC18XX/43XX GPIO support" 299 default y if ARCH_LPC18XX 300 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 301 help 302 Select this option to enable GPIO driver for 303 NXP LPC18XX/43XX devices. 304 305 config GPIO_LYNXPOINT 306 tristate "Intel Lynxpoint GPIO support" 307 depends on ACPI && X86 308 select GPIOLIB_IRQCHIP 309 help 310 driver for GPIO functionality on Intel Lynxpoint PCH chipset 311 Requires ACPI device enumeration code to set up a platform device. 312 313 config GPIO_MB86S7X 314 tristate "GPIO support for Fujitsu MB86S7x Platforms" 315 help 316 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 317 318 config GPIO_MENZ127 319 tristate "MEN 16Z127 GPIO support" 320 depends on MCB 321 select GPIO_GENERIC 322 help 323 Say yes here to support the MEN 16Z127 GPIO Controller 324 325 config GPIO_MM_LANTIQ 326 bool "Lantiq Memory mapped GPIOs" 327 depends on LANTIQ && SOC_XWAY 328 help 329 This enables support for memory mapped GPIOs on the External Bus Unit 330 (EBU) found on Lantiq SoCs. The gpios are output only as they are 331 created by attaching a 16bit latch to the bus. 332 333 config GPIO_MOCKUP 334 tristate "GPIO Testing Driver" 335 depends on GPIOLIB && SYSFS 336 select GPIO_SYSFS 337 select GPIOLIB_IRQCHIP 338 select IRQ_SIM 339 help 340 This enables GPIO Testing driver, which provides a way to test GPIO 341 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS 342 must be selected for this test. 343 User could use it through the script in 344 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 345 it. 346 347 config GPIO_MPC5200 348 def_bool y 349 depends on PPC_MPC52xx 350 351 config GPIO_MPC8XXX 352 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 353 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 354 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 355 COMPILE_TEST 356 select GPIO_GENERIC 357 select IRQ_DOMAIN 358 help 359 Say Y here if you're going to use hardware that connects to the 360 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 361 362 config GPIO_MT7621 363 bool "Mediatek MT7621 GPIO Support" 364 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 365 depends on OF_GPIO 366 select GPIO_GENERIC 367 select GPIOLIB_IRQCHIP 368 help 369 Say yes here to support the Mediatek MT7621 SoC GPIO device 370 371 config GPIO_MVEBU 372 def_bool y 373 depends on PLAT_ORION || ARCH_MVEBU 374 depends on OF_GPIO 375 select GENERIC_IRQ_CHIP 376 select REGMAP_MMIO 377 378 config GPIO_MXC 379 def_bool y 380 depends on ARCH_MXC 381 select GPIO_GENERIC 382 select GENERIC_IRQ_CHIP 383 384 config GPIO_MXS 385 def_bool y 386 depends on ARCH_MXS 387 select GPIO_GENERIC 388 select GENERIC_IRQ_CHIP 389 390 config GPIO_OCTEON 391 tristate "Cavium OCTEON GPIO" 392 depends on GPIOLIB && CAVIUM_OCTEON_SOC 393 default y 394 help 395 Say yes here to support the on-chip GPIO lines on the OCTEON 396 family of SOCs. 397 398 config GPIO_OMAP 399 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 400 default y if ARCH_OMAP 401 depends on ARM 402 select GENERIC_IRQ_CHIP 403 select GPIOLIB_IRQCHIP 404 help 405 Say yes here to enable GPIO support for TI OMAP SoCs. 406 407 config GPIO_PL061 408 bool "PrimeCell PL061 GPIO support" 409 depends on ARM_AMBA 410 select IRQ_DOMAIN 411 select GPIOLIB_IRQCHIP 412 help 413 Say yes here to support the PrimeCell PL061 GPIO device 414 415 config GPIO_PMIC_EIC_SPRD 416 tristate "Spreadtrum PMIC EIC support" 417 depends on MFD_SC27XX_PMIC || COMPILE_TEST 418 depends on OF_GPIO 419 select GPIOLIB_IRQCHIP 420 help 421 Say yes here to support Spreadtrum PMIC EIC device. 422 423 config GPIO_PXA 424 bool "PXA GPIO support" 425 depends on ARCH_PXA || ARCH_MMP 426 help 427 Say yes here to support the PXA GPIO device 428 429 config GPIO_RCAR 430 tristate "Renesas R-Car GPIO" 431 depends on ARCH_RENESAS || COMPILE_TEST 432 select GPIOLIB_IRQCHIP 433 help 434 Say yes here to support GPIO on Renesas R-Car SoCs. 435 436 config GPIO_REG 437 bool 438 help 439 A 32-bit single register GPIO fixed in/out implementation. This 440 can be used to represent any register as a set of GPIO signals. 441 442 config GPIO_SPEAR_SPICS 443 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 444 depends on PLAT_SPEAR 445 select GENERIC_IRQ_CHIP 446 help 447 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 448 449 config GPIO_SPRD 450 tristate "Spreadtrum GPIO support" 451 depends on ARCH_SPRD || COMPILE_TEST 452 depends on OF_GPIO 453 select GPIOLIB_IRQCHIP 454 help 455 Say yes here to support Spreadtrum GPIO device. 456 457 config GPIO_STA2X11 458 bool "STA2x11/ConneXt GPIO support" 459 depends on MFD_STA2X11 460 select GENERIC_IRQ_CHIP 461 help 462 Say yes here to support the STA2x11/ConneXt GPIO device. 463 The GPIO module has 128 GPIO pins with alternate functions. 464 465 config GPIO_STP_XWAY 466 bool "XWAY STP GPIOs" 467 depends on SOC_XWAY 468 help 469 This enables support for the Serial To Parallel (STP) unit found on 470 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 471 that can be up to 24 bit. This peripheral is aimed at driving leds. 472 Some of the gpios/leds can be auto updated by the soc with dsl and 473 phy status. 474 475 config GPIO_SYSCON 476 tristate "GPIO based on SYSCON" 477 depends on MFD_SYSCON && OF 478 help 479 Say yes here to support GPIO functionality though SYSCON driver. 480 481 config GPIO_TB10X 482 bool 483 select GENERIC_IRQ_CHIP 484 select OF_GPIO 485 486 config GPIO_TEGRA 487 bool "NVIDIA Tegra GPIO support" 488 default ARCH_TEGRA 489 depends on ARCH_TEGRA || COMPILE_TEST 490 depends on OF_GPIO 491 help 492 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 493 494 config GPIO_TEGRA186 495 tristate "NVIDIA Tegra186 GPIO support" 496 default ARCH_TEGRA_186_SOC 497 depends on ARCH_TEGRA_186_SOC || COMPILE_TEST 498 depends on OF_GPIO 499 select GPIOLIB_IRQCHIP 500 help 501 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 502 503 config GPIO_TS4800 504 tristate "TS-4800 DIO blocks and compatibles" 505 depends on OF_GPIO 506 depends on SOC_IMX51 || COMPILE_TEST 507 select GPIO_GENERIC 508 help 509 This driver support TS-4800 FPGA GPIO controllers. 510 511 config GPIO_THUNDERX 512 tristate "Cavium ThunderX/OCTEON-TX GPIO" 513 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 514 depends on PCI_MSI 515 select IRQ_DOMAIN_HIERARCHY 516 select IRQ_FASTEOI_HIERARCHY_HANDLERS 517 help 518 Say yes here to support the on-chip GPIO lines on the ThunderX 519 and OCTEON-TX families of SoCs. 520 521 config GPIO_UNIPHIER 522 tristate "UniPhier GPIO support" 523 depends on ARCH_UNIPHIER || COMPILE_TEST 524 depends on OF_GPIO 525 select IRQ_DOMAIN_HIERARCHY 526 help 527 Say yes here to support UniPhier GPIOs. 528 529 config GPIO_VF610 530 def_bool y 531 depends on ARCH_MXC && SOC_VF610 532 select GPIOLIB_IRQCHIP 533 help 534 Say yes here to support Vybrid vf610 GPIOs. 535 536 config GPIO_VR41XX 537 tristate "NEC VR4100 series General-purpose I/O Uint support" 538 depends on CPU_VR41XX 539 help 540 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 541 542 config GPIO_VX855 543 tristate "VIA VX855/VX875 GPIO" 544 depends on (X86 || COMPILE_TEST) && PCI 545 select MFD_CORE 546 select MFD_VX855 547 help 548 Support access to the VX855/VX875 GPIO lines through the gpio library. 549 550 This driver provides common support for accessing the device, 551 additional drivers must be enabled in order to use the 552 functionality of the device. 553 554 config GPIO_XGENE 555 bool "APM X-Gene GPIO controller support" 556 depends on ARM64 && OF_GPIO 557 help 558 This driver is to support the GPIO block within the APM X-Gene SoC 559 platform's generic flash controller. The GPIO pins are muxed with 560 the generic flash controller's address and data pins. Say yes 561 here to enable the GFC GPIO functionality. 562 563 config GPIO_XGENE_SB 564 tristate "APM X-Gene GPIO standby controller support" 565 depends on ARCH_XGENE && OF_GPIO 566 select GPIO_GENERIC 567 select GPIOLIB_IRQCHIP 568 select IRQ_DOMAIN_HIERARCHY 569 help 570 This driver supports the GPIO block within the APM X-Gene 571 Standby Domain. Say yes here to enable the GPIO functionality. 572 573 config GPIO_XILINX 574 tristate "Xilinx GPIO support" 575 depends on OF_GPIO 576 help 577 Say yes here to support the Xilinx FPGA GPIO device 578 579 config GPIO_XLP 580 tristate "Netlogic XLP GPIO support" 581 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 582 select GPIOLIB_IRQCHIP 583 help 584 This driver provides support for GPIO interface on Netlogic XLP MIPS64 585 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 586 XLP9XX and XLP5XX. The same GPIO controller block is also present in 587 Cavium's ThunderX2 CN99XX SoCs. 588 589 If unsure, say N. 590 591 config GPIO_XTENSA 592 bool "Xtensa GPIO32 support" 593 depends on XTENSA 594 depends on HAVE_XTENSA_GPIO32 595 depends on !SMP 596 help 597 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 598 and EXPSTATE (output) ports 599 600 config GPIO_ZEVIO 601 bool "LSI ZEVIO SoC memory mapped GPIOs" 602 depends on ARM && OF_GPIO 603 help 604 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 605 606 config GPIO_ZYNQ 607 tristate "Xilinx Zynq GPIO support" 608 depends on ARCH_ZYNQ || ARCH_ZYNQMP 609 select GPIOLIB_IRQCHIP 610 help 611 Say yes here to support Xilinx Zynq GPIO controller. 612 613 config GPIO_ZX 614 bool "ZTE ZX GPIO support" 615 depends on ARCH_ZX || COMPILE_TEST 616 select GPIOLIB_IRQCHIP 617 help 618 Say yes here to support the GPIO device on ZTE ZX SoCs. 619 620 config GPIO_LOONGSON1 621 tristate "Loongson1 GPIO support" 622 depends on MACH_LOONGSON32 623 select GPIO_GENERIC 624 help 625 Say Y or M here to support GPIO on Loongson1 SoCs. 626 627 endmenu 628 629 menu "Port-mapped I/O GPIO drivers" 630 depends on X86 # Unconditional I/O space access 631 632 config GPIO_104_DIO_48E 633 tristate "ACCES 104-DIO-48E GPIO support" 634 depends on PC104 635 select ISA_BUS_API 636 select GPIOLIB_IRQCHIP 637 help 638 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 639 104-DIO-24E). The base port addresses for the devices may be 640 configured via the base module parameter. The interrupt line numbers 641 for the devices may be configured via the irq module parameter. 642 643 config GPIO_104_IDIO_16 644 tristate "ACCES 104-IDIO-16 GPIO support" 645 depends on PC104 646 select ISA_BUS_API 647 select GPIOLIB_IRQCHIP 648 help 649 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 650 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 651 base port addresses for the devices may be configured via the base 652 module parameter. The interrupt line numbers for the devices may be 653 configured via the irq module parameter. 654 655 config GPIO_104_IDI_48 656 tristate "ACCES 104-IDI-48 GPIO support" 657 depends on PC104 658 select ISA_BUS_API 659 select GPIOLIB_IRQCHIP 660 help 661 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 662 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 663 the devices may be configured via the base module parameter. The 664 interrupt line numbers for the devices may be configured via the irq 665 module parameter. 666 667 config GPIO_F7188X 668 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 669 help 670 This option enables support for GPIOs found on Fintek Super-I/O 671 chips F71869, F71869A, F71882FG, F71889F and F81866. 672 673 To compile this driver as a module, choose M here: the module will 674 be called f7188x-gpio. 675 676 config GPIO_GPIO_MM 677 tristate "Diamond Systems GPIO-MM GPIO support" 678 depends on PC104 679 select ISA_BUS_API 680 help 681 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 682 683 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 684 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 685 support for these 48 channels of digital I/O. 686 687 The base port addresses for the devices may be configured via the base 688 array module parameter. 689 690 config GPIO_IT87 691 tristate "IT87xx GPIO support" 692 help 693 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 694 695 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 696 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 697 well. 698 699 To compile this driver as a module, choose M here: the module will 700 be called gpio_it87 701 702 config GPIO_SCH 703 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 704 depends on (X86 || COMPILE_TEST) && PCI 705 select MFD_CORE 706 select LPC_SCH 707 help 708 Say yes here to support GPIO interface on Intel Poulsbo SCH, 709 Intel Tunnel Creek processor, Intel Centerton processor or 710 Intel Quark X1000 SoC. 711 712 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 713 powered by the core power rail and are turned off during sleep 714 modes (S3 and higher). The remaining four GPIOs are powered by 715 the Intel SCH suspend power supply. These GPIOs remain 716 active during S3. The suspend powered GPIOs can be used to wake the 717 system from the Suspend-to-RAM state. 718 719 The Intel Tunnel Creek processor has 5 GPIOs powered by the 720 core power rail and 9 from suspend power supply. 721 722 The Intel Centerton processor has a total of 30 GPIO pins. 723 Twenty-one are powered by the core power rail and 9 from the 724 suspend power supply. 725 726 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 727 power well and 6 from the suspend power well. 728 729 config GPIO_SCH311X 730 tristate "SMSC SCH311x SuperI/O GPIO" 731 help 732 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 733 SCH3116 "Super I/O" chipsets. 734 735 To compile this driver as a module, choose M here: the module will 736 be called gpio-sch311x. 737 738 config GPIO_TS5500 739 tristate "TS-5500 DIO blocks and compatibles" 740 depends on TS5500 || COMPILE_TEST 741 help 742 This driver supports Digital I/O exposed by pin blocks found on some 743 Technologic Systems platforms. It includes, but is not limited to, 3 744 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 745 LCD port. 746 747 config GPIO_WINBOND 748 tristate "Winbond Super I/O GPIO support" 749 select ISA_BUS_API 750 help 751 This option enables support for GPIOs found on Winbond Super I/O 752 chips. 753 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 754 supported. 755 756 You will need to provide a module parameter "gpios", or a 757 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 758 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 759 760 To compile this driver as a module, choose M here: the module will 761 be called gpio-winbond. 762 763 config GPIO_WS16C48 764 tristate "WinSystems WS16C48 GPIO support" 765 select ISA_BUS_API 766 select GPIOLIB_IRQCHIP 767 help 768 Enables GPIO support for the WinSystems WS16C48. The base port 769 addresses for the devices may be configured via the base module 770 parameter. The interrupt line numbers for the devices may be 771 configured via the irq module parameter. 772 773 endmenu 774 775 menu "I2C GPIO expanders" 776 depends on I2C 777 778 config GPIO_ADP5588 779 tristate "ADP5588 I2C GPIO expander" 780 help 781 This option enables support for 18 GPIOs found 782 on Analog Devices ADP5588 GPIO Expanders. 783 784 config GPIO_ADP5588_IRQ 785 bool "Interrupt controller support for ADP5588" 786 depends on GPIO_ADP5588=y 787 help 788 Say yes here to enable the adp5588 to be used as an interrupt 789 controller. It requires the driver to be built in the kernel. 790 791 config GPIO_ADNP 792 tristate "Avionic Design N-bit GPIO expander" 793 depends on OF_GPIO 794 select GPIOLIB_IRQCHIP 795 help 796 This option enables support for N GPIOs found on Avionic Design 797 I2C GPIO expanders. The register space will be extended by powers 798 of two, so the controller will need to accommodate for that. For 799 example: if a controller provides 48 pins, 6 registers will be 800 enough to represent all pins, but the driver will assume a 801 register layout for 64 pins (8 registers). 802 803 config GPIO_MAX7300 804 tristate "Maxim MAX7300 GPIO expander" 805 select GPIO_MAX730X 806 help 807 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 808 809 config GPIO_MAX732X 810 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 811 help 812 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 813 Port Expanders. Each IO port on these chips has a fixed role of 814 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 815 Input and Output (designed by 'P'). The combinations are listed 816 below: 817 818 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 819 max7322 (4I4O), max7323 (4P4O) 820 821 16 bits: max7324 (8I8O), max7325 (8P8O), 822 max7326 (4I12O), max7327 (4P12O) 823 824 Board setup code must specify the model to use, and the start 825 number for these GPIOs. 826 827 config GPIO_MAX732X_IRQ 828 bool "Interrupt controller support for MAX732x" 829 depends on GPIO_MAX732X=y 830 select GPIOLIB_IRQCHIP 831 help 832 Say yes here to enable the max732x to be used as an interrupt 833 controller. It requires the driver to be built in the kernel. 834 835 config GPIO_MC9S08DZ60 836 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 837 depends on I2C=y && MACH_MX35_3DS 838 help 839 Select this to enable the MC9S08DZ60 GPIO driver 840 841 config GPIO_PCA953X 842 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 843 help 844 Say yes here to provide access to several register-oriented 845 SMBus I/O expanders, made mostly by NXP or TI. Compatible 846 models include: 847 848 4 bits: pca9536, pca9537 849 850 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 851 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 852 853 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 854 tca6416 855 856 24 bits: tca6424 857 858 40 bits: pca9505, pca9698 859 860 config GPIO_PCA953X_IRQ 861 bool "Interrupt controller support for PCA953x" 862 depends on GPIO_PCA953X=y 863 select GPIOLIB_IRQCHIP 864 help 865 Say yes here to enable the pca953x to be used as an interrupt 866 controller. It requires the driver to be built in the kernel. 867 868 config GPIO_PCF857X 869 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 870 select GPIOLIB_IRQCHIP 871 select IRQ_DOMAIN 872 help 873 Say yes here to provide access to most "quasi-bidirectional" I2C 874 GPIO expanders used for additional digital outputs or inputs. 875 Most of these parts are from NXP, though TI is a second source for 876 some of them. Compatible models include: 877 878 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 879 pca9670, pca9672, pca9674, pca9674a, 880 max7328, max7329 881 882 16 bits: pcf8575, pcf8575c, pca8575, 883 pca9671, pca9673, pca9675 884 885 Your board setup code will need to declare the expanders in 886 use, and assign numbers to the GPIOs they expose. Those GPIOs 887 can then be used from drivers and other kernel code, just like 888 other GPIOs, but only accessible from task contexts. 889 890 This driver provides an in-kernel interface to those GPIOs using 891 platform-neutral GPIO calls. 892 893 config GPIO_TPIC2810 894 tristate "TPIC2810 8-Bit I2C GPO expander" 895 help 896 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 897 898 To compile this driver as a module, choose M here: the module will 899 be called gpio-tpic2810. 900 901 config GPIO_TS4900 902 tristate "Technologic Systems FPGA I2C GPIO" 903 depends on SOC_IMX6 || COMPILE_TEST 904 select REGMAP_I2C 905 help 906 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 907 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 908 909 endmenu 910 911 menu "MFD GPIO expanders" 912 913 config GPIO_ADP5520 914 tristate "GPIO Support for ADP5520 PMIC" 915 depends on PMIC_ADP5520 916 help 917 This option enables support for on-chip GPIO found 918 on Analog Devices ADP5520 PMICs. 919 920 config GPIO_ALTERA_A10SR 921 tristate "Altera Arria10 System Resource GPIO" 922 depends on MFD_ALTERA_A10SR 923 help 924 Driver for Arria10 Development Kit GPIO expansion which 925 includes reads of pushbuttons and DIP switches as well 926 as writes to LEDs. 927 928 config GPIO_ARIZONA 929 tristate "Wolfson Microelectronics Arizona class devices" 930 depends on MFD_ARIZONA 931 help 932 Support for GPIOs on Wolfson Arizona class devices. 933 934 config GPIO_BD9571MWV 935 tristate "ROHM BD9571 GPIO support" 936 depends on MFD_BD9571MWV 937 help 938 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 939 available on the ROHM PMIC in total, both of which can also 940 generate interrupts. 941 942 This driver can also be built as a module. If so, the module 943 will be called gpio-bd9571mwv. 944 945 config GPIO_CRYSTAL_COVE 946 tristate "GPIO support for Crystal Cove PMIC" 947 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 948 select GPIOLIB_IRQCHIP 949 help 950 Support for GPIO pins on Crystal Cove PMIC. 951 952 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 953 inside. 954 955 This driver can also be built as a module. If so, the module will be 956 called gpio-crystalcove. 957 958 config GPIO_CS5535 959 tristate "AMD CS5535/CS5536 GPIO support" 960 depends on X86 || MIPS || COMPILE_TEST 961 depends on MFD_CS5535 962 help 963 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 964 can be used for quite a number of things. The CS5535/6 is found on 965 AMD Geode and Lemote Yeeloong devices. 966 967 If unsure, say N. 968 969 config GPIO_DA9052 970 tristate "Dialog DA9052 GPIO" 971 depends on PMIC_DA9052 972 help 973 Say yes here to enable the GPIO driver for the DA9052 chip. 974 975 config GPIO_DA9055 976 tristate "Dialog Semiconductor DA9055 GPIO" 977 depends on MFD_DA9055 978 help 979 Say yes here to enable the GPIO driver for the DA9055 chip. 980 981 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 982 be controller by this driver. 983 984 If driver is built as a module it will be called gpio-da9055. 985 986 config GPIO_DLN2 987 tristate "Diolan DLN2 GPIO support" 988 depends on MFD_DLN2 989 select GPIOLIB_IRQCHIP 990 991 help 992 Select this option to enable GPIO driver for the Diolan DLN2 993 board. 994 995 This driver can also be built as a module. If so, the module 996 will be called gpio-dln2. 997 998 config HTC_EGPIO 999 bool "HTC EGPIO support" 1000 depends on GPIOLIB && ARM 1001 help 1002 This driver supports the CPLD egpio chip present on 1003 several HTC phones. It provides basic support for input 1004 pins, output pins, and irqs. 1005 1006 config GPIO_JANZ_TTL 1007 tristate "Janz VMOD-TTL Digital IO Module" 1008 depends on MFD_JANZ_CMODIO 1009 help 1010 This enables support for the Janz VMOD-TTL Digital IO module. 1011 This driver provides support for driving the pins in output 1012 mode only. Input mode is not supported. 1013 1014 config GPIO_KEMPLD 1015 tristate "Kontron ETX / COMexpress GPIO" 1016 depends on MFD_KEMPLD 1017 help 1018 This enables support for the PLD GPIO interface on some Kontron ETX 1019 and COMexpress (ETXexpress) modules. 1020 1021 This driver can also be built as a module. If so, the module will be 1022 called gpio-kempld. 1023 1024 config GPIO_LP3943 1025 tristate "TI/National Semiconductor LP3943 GPIO expander" 1026 depends on MFD_LP3943 1027 help 1028 GPIO driver for LP3943 MFD. 1029 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1030 Open drain outputs are required for this usage. 1031 1032 config GPIO_LP873X 1033 tristate "TI LP873X GPO" 1034 depends on MFD_TI_LP873X 1035 help 1036 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1037 on LP873X PMICs. 1038 1039 This driver can also be built as a module. If so, the module will be 1040 called gpio-lp873x. 1041 1042 config GPIO_LP87565 1043 tristate "TI LP87565 GPIO" 1044 depends on MFD_TI_LP87565 1045 help 1046 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1047 on LP87565 PMICs. 1048 1049 This driver can also be built as a module. If so, the module will be 1050 called gpio-lp87565. 1051 1052 config GPIO_MADERA 1053 tristate "Cirrus Logic Madera class codecs" 1054 depends on PINCTRL_MADERA 1055 help 1056 Support for GPIOs on Cirrus Logic Madera class codecs. 1057 1058 config GPIO_MAX77620 1059 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1060 depends on MFD_MAX77620 1061 help 1062 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1063 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1064 driver also provides interrupt support for each of the gpios. 1065 Say yes here to enable the max77620 to be used as gpio controller. 1066 1067 config GPIO_MSIC 1068 bool "Intel MSIC mixed signal gpio support" 1069 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC 1070 help 1071 Enable support for GPIO on intel MSIC controllers found in 1072 intel MID devices 1073 1074 config GPIO_PALMAS 1075 bool "TI PALMAS series PMICs GPIO" 1076 depends on MFD_PALMAS 1077 help 1078 Select this option to enable GPIO driver for the TI PALMAS 1079 series chip family. 1080 1081 config GPIO_RC5T583 1082 bool "RICOH RC5T583 GPIO" 1083 depends on MFD_RC5T583 1084 help 1085 Select this option to enable GPIO driver for the Ricoh RC5T583 1086 chip family. 1087 This driver provides the support for driving/reading the gpio pins 1088 of RC5T583 device through standard gpio library. 1089 1090 config GPIO_STMPE 1091 bool "STMPE GPIOs" 1092 depends on MFD_STMPE 1093 depends on OF_GPIO 1094 select GPIOLIB_IRQCHIP 1095 help 1096 This enables support for the GPIOs found on the STMPE I/O 1097 Expanders. 1098 1099 config GPIO_TC3589X 1100 bool "TC3589X GPIOs" 1101 depends on MFD_TC3589X 1102 depends on OF_GPIO 1103 select GPIOLIB_IRQCHIP 1104 help 1105 This enables support for the GPIOs found on the TC3589X 1106 I/O Expander. 1107 1108 config GPIO_TIMBERDALE 1109 bool "Support for timberdale GPIO IP" 1110 depends on MFD_TIMBERDALE 1111 ---help--- 1112 Add support for the GPIO IP in the timberdale FPGA. 1113 1114 config GPIO_TPS65086 1115 tristate "TI TPS65086 GPO" 1116 depends on MFD_TPS65086 1117 help 1118 This driver supports the GPO on TI TPS65086x PMICs. 1119 1120 config GPIO_TPS65218 1121 tristate "TPS65218 GPIO" 1122 depends on MFD_TPS65218 1123 help 1124 Select this option to enable GPIO driver for the TPS65218 1125 chip family. 1126 1127 config GPIO_TPS6586X 1128 bool "TPS6586X GPIO" 1129 depends on MFD_TPS6586X 1130 help 1131 Select this option to enable GPIO driver for the TPS6586X 1132 chip family. 1133 1134 config GPIO_TPS65910 1135 bool "TPS65910 GPIO" 1136 depends on MFD_TPS65910 1137 help 1138 Select this option to enable GPIO driver for the TPS65910 1139 chip family. 1140 1141 config GPIO_TPS65912 1142 tristate "TI TPS65912 GPIO" 1143 depends on MFD_TPS65912 1144 help 1145 This driver supports TPS65912 gpio chip 1146 1147 config GPIO_TPS68470 1148 bool "TPS68470 GPIO" 1149 depends on MFD_TPS68470 1150 help 1151 Select this option to enable GPIO driver for the TPS68470 1152 chip family. 1153 There are 7 GPIOs and few sensor related GPIOs supported 1154 by the TPS68470. While the 7 GPIOs can be configured as 1155 input or output as appropriate, the sensor related GPIOs 1156 are "output only" GPIOs. 1157 1158 This driver config is bool, as the GPIO functionality 1159 of the TPS68470 must be available before dependent 1160 drivers are loaded. 1161 1162 config GPIO_TWL4030 1163 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1164 depends on TWL4030_CORE 1165 help 1166 Say yes here to access the GPIO signals of various multi-function 1167 power management chips from Texas Instruments. 1168 1169 config GPIO_TWL6040 1170 tristate "TWL6040 GPO" 1171 depends on TWL6040_CORE 1172 help 1173 Say yes here to access the GPO signals of twl6040 1174 audio chip from Texas Instruments. 1175 1176 config GPIO_UCB1400 1177 tristate "Philips UCB1400 GPIO" 1178 depends on UCB1400_CORE 1179 help 1180 This enables support for the Philips UCB1400 GPIO pins. 1181 The UCB1400 is an AC97 audio codec. 1182 1183 config GPIO_WHISKEY_COVE 1184 tristate "GPIO support for Whiskey Cove PMIC" 1185 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1186 select GPIOLIB_IRQCHIP 1187 help 1188 Support for GPIO pins on Whiskey Cove PMIC. 1189 1190 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC 1191 inside. 1192 1193 This driver can also be built as a module. If so, the module will be 1194 called gpio-wcove. 1195 1196 config GPIO_WM831X 1197 tristate "WM831x GPIOs" 1198 depends on MFD_WM831X 1199 help 1200 Say yes here to access the GPIO signals of WM831x power management 1201 chips from Wolfson Microelectronics. 1202 1203 config GPIO_WM8350 1204 tristate "WM8350 GPIOs" 1205 depends on MFD_WM8350 1206 help 1207 Say yes here to access the GPIO signals of WM8350 power management 1208 chips from Wolfson Microelectronics. 1209 1210 config GPIO_WM8994 1211 tristate "WM8994 GPIOs" 1212 depends on MFD_WM8994 1213 help 1214 Say yes here to access the GPIO signals of WM8994 audio hub 1215 CODECs from Wolfson Microelectronics. 1216 1217 endmenu 1218 1219 menu "PCI GPIO expanders" 1220 depends on PCI 1221 1222 config GPIO_AMD8111 1223 tristate "AMD 8111 GPIO driver" 1224 depends on X86 || COMPILE_TEST 1225 help 1226 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1227 1228 Note, that usually system firmware/ACPI handles GPIO pins on their 1229 own and users might easily break their systems with uncarefull usage 1230 of this driver! 1231 1232 If unsure, say N 1233 1234 config GPIO_BT8XX 1235 tristate "BT8XX GPIO abuser" 1236 depends on VIDEO_BT848=n 1237 help 1238 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1239 as a cheap PCI GPIO card. 1240 1241 This chip can be found on Miro, Hauppauge and STB TV-cards. 1242 1243 The card needs to be physically altered for using it as a 1244 GPIO card. For more information on how to build a GPIO card 1245 from a BT8xx TV card, see the documentation file at 1246 Documentation/bt8xxgpio.txt 1247 1248 If unsure, say N. 1249 1250 config GPIO_INTEL_MID 1251 bool "Intel MID GPIO support" 1252 depends on X86_INTEL_MID 1253 select GPIOLIB_IRQCHIP 1254 help 1255 Say Y here to support Intel MID GPIO. 1256 1257 config GPIO_MERRIFIELD 1258 tristate "Intel Merrifield GPIO support" 1259 depends on X86_INTEL_MID 1260 select GPIOLIB_IRQCHIP 1261 help 1262 Say Y here to support Intel Merrifield GPIO. 1263 1264 config GPIO_ML_IOH 1265 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1266 depends on X86 || COMPILE_TEST 1267 select GENERIC_IRQ_CHIP 1268 help 1269 ML7213 is companion chip for Intel Atom E6xx series. 1270 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1271 Hub) which is for IVI(In-Vehicle Infotainment) use. 1272 This driver can access the IOH's GPIO device. 1273 1274 config GPIO_PCH 1275 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1276 depends on X86_32 || MIPS || COMPILE_TEST 1277 select GENERIC_IRQ_CHIP 1278 help 1279 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1280 which is an IOH(Input/Output Hub) for x86 embedded processor. 1281 This driver can access PCH GPIO device. 1282 1283 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1284 Output Hub), ML7223 and ML7831. 1285 ML7223 IOH is for MP(Media Phone) use. 1286 ML7831 IOH is for general purpose use. 1287 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1288 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1289 1290 config GPIO_PCI_IDIO_16 1291 tristate "ACCES PCI-IDIO-16 GPIO support" 1292 select GPIOLIB_IRQCHIP 1293 help 1294 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1295 generated when any of the inputs change state (low to high or high to 1296 low). Input filter control is not supported by this driver, and the 1297 input filters are deactivated by this driver. 1298 1299 config GPIO_PCIE_IDIO_24 1300 tristate "ACCES PCIe-IDIO-24 GPIO support" 1301 select GPIOLIB_IRQCHIP 1302 help 1303 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1304 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1305 when any of the inputs change state (low to high or high to low). 1306 Input filter control is not supported by this driver, and the input 1307 filters are deactivated by this driver. 1308 1309 config GPIO_RDC321X 1310 tristate "RDC R-321x GPIO support" 1311 select MFD_CORE 1312 select MFD_RDC321X 1313 help 1314 Support for the RDC R321x SoC GPIOs over southbridge 1315 PCI configuration space. 1316 1317 config GPIO_SODAVILLE 1318 bool "Intel Sodaville GPIO support" 1319 depends on X86 && OF 1320 select GPIO_GENERIC 1321 select GENERIC_IRQ_CHIP 1322 help 1323 Say Y here to support Intel Sodaville GPIO. 1324 1325 endmenu 1326 1327 menu "SPI GPIO expanders" 1328 depends on SPI_MASTER 1329 1330 config GPIO_74X164 1331 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1332 depends on OF_GPIO 1333 help 1334 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1335 shift registers. This driver can be used to provide access 1336 to more gpio outputs. 1337 1338 config GPIO_MAX3191X 1339 tristate "Maxim MAX3191x industrial serializer" 1340 select CRC8 1341 help 1342 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1343 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1344 chip to make 8 digital 24V inputs available via SPI. Supports 1345 CRC checksums to guard against electromagnetic interference, 1346 as well as undervoltage and overtemperature detection. 1347 1348 config GPIO_MAX7301 1349 tristate "Maxim MAX7301 GPIO expander" 1350 select GPIO_MAX730X 1351 help 1352 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1353 1354 config GPIO_MC33880 1355 tristate "Freescale MC33880 high-side/low-side switch" 1356 help 1357 SPI driver for Freescale MC33880 high-side/low-side switch. 1358 This provides GPIO interface supporting inputs and outputs. 1359 1360 config GPIO_PISOSR 1361 tristate "Generic parallel-in/serial-out shift register" 1362 help 1363 GPIO driver for SPI compatible parallel-in/serial-out shift 1364 registers. These are input only devices. 1365 1366 config GPIO_XRA1403 1367 tristate "EXAR XRA1403 16-bit GPIO expander" 1368 select REGMAP_SPI 1369 help 1370 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1371 1372 endmenu 1373 1374 menu "USB GPIO expanders" 1375 depends on USB 1376 1377 config GPIO_VIPERBOARD 1378 tristate "Viperboard GPIO a & b support" 1379 depends on MFD_VIPERBOARD 1380 help 1381 Say yes here to access the GPIO signals of Nano River 1382 Technologies Viperboard. There are two GPIO chips on the 1383 board: gpioa and gpiob. 1384 See viperboard API specification and Nano 1385 River Tech's viperboard.h for detailed meaning 1386 of the module parameters. 1387 1388 endmenu 1389 1390 endif 1391
