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)" if EXPERT 63 depends on SYSFS 64 select GPIO_CDEV # We need to encourage the new ABI 65 help 66 Say Y here to add the legacy sysfs interface for GPIOs. 67 68 This ABI is deprecated. If you want to use GPIO from userspace, 69 use the character device /dev/gpiochipN with the appropriate 70 ioctl() operations instead. 71 72config GPIO_CDEV 73 bool 74 prompt "Character device (/dev/gpiochipN) support" if EXPERT 75 default y 76 help 77 Say Y here to add the character device /dev/gpiochipN interface 78 for GPIOs. The character device allows userspace to control GPIOs 79 using ioctl() operations. 80 81 Only say N if you are sure that the GPIO character device is not 82 required. 83 84 If unsure, say Y. 85 86config GPIO_CDEV_V1 87 bool "Support GPIO ABI Version 1" 88 default y 89 depends on GPIO_CDEV 90 help 91 Say Y here to support version 1 of the GPIO CDEV ABI. 92 93 This ABI version is deprecated. 94 Please use the latest ABI for new developments. 95 96 If unsure, say Y. 97 98config GPIO_GENERIC 99 depends on HAS_IOMEM # Only for IOMEM drivers 100 tristate 101 102config GPIO_REGMAP 103 depends on REGMAP 104 tristate 105 106# put drivers in the right section, in alphabetical order 107 108# This symbol is selected by both I2C and SPI expanders 109config GPIO_MAX730X 110 tristate 111 112menu "Memory mapped GPIO drivers" 113 depends on HAS_IOMEM 114 115config GPIO_74XX_MMIO 116 tristate "GPIO driver for 74xx-ICs with MMIO access" 117 depends on OF_GPIO 118 select GPIO_GENERIC 119 help 120 Say yes here to support GPIO functionality for 74xx-compatible ICs 121 with MMIO access. Compatible models include: 122 1 bit: 741G125 (Input), 741G74 (Output) 123 2 bits: 742G125 (Input), 7474 (Output) 124 4 bits: 74125 (Input), 74175 (Output) 125 6 bits: 74365 (Input), 74174 (Output) 126 8 bits: 74244 (Input), 74273 (Output) 127 16 bits: 741624 (Input), 7416374 (Output) 128 129config GPIO_ALTERA 130 tristate "Altera GPIO" 131 depends on OF_GPIO 132 select GPIOLIB_IRQCHIP 133 help 134 Say Y or M here to build support for the Altera PIO device. 135 136 If driver is built as a module it will be called gpio-altera. 137 138config GPIO_AMDPT 139 tristate "AMD Promontory GPIO support" 140 depends on ACPI 141 select GPIO_GENERIC 142 help 143 driver for GPIO functionality on Promontory IOHub 144 Require ACPI ASL code to enumerate as a platform device. 145 146config GPIO_ASPEED 147 tristate "Aspeed GPIO support" 148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 149 select GPIOLIB_IRQCHIP 150 help 151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 152 153config GPIO_ASPEED_SGPIO 154 bool "Aspeed SGPIO support" 155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 156 select GPIO_GENERIC 157 select GPIOLIB_IRQCHIP 158 help 159 Say Y here to support Aspeed AST2500 SGPIO functionality. 160 161config GPIO_ATH79 162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 163 default y if ATH79 164 depends on ATH79 || COMPILE_TEST 165 select GPIO_GENERIC 166 select GPIOLIB_IRQCHIP 167 help 168 Select this option to enable GPIO driver for 169 Atheros AR71XX/AR724X/AR913X SoC devices. 170 171config GPIO_RASPBERRYPI_EXP 172 tristate "Raspberry Pi 3 GPIO Expander" 173 default RASPBERRYPI_FIRMWARE 174 depends on OF_GPIO 175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 178 help 179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 180 the firmware mailbox to communicate with VideoCore on BCM283x chips. 181 182config GPIO_BCM_KONA 183 bool "Broadcom Kona GPIO" 184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 185 help 186 Turn on GPIO support for Broadcom "Kona" chips. 187 188config GPIO_BCM_XGS_IPROC 189 tristate "BRCM XGS iProc GPIO support" 190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 191 select GPIO_GENERIC 192 select GPIOLIB_IRQCHIP 193 default ARCH_BCM_IPROC 194 help 195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 196 197config GPIO_BRCMSTB 198 tristate "BRCMSTB GPIO support" 199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 201 select GPIO_GENERIC 202 select IRQ_DOMAIN 203 help 204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 205 206config GPIO_CADENCE 207 tristate "Cadence GPIO support" 208 depends on OF_GPIO 209 select GPIO_GENERIC 210 select GPIOLIB_IRQCHIP 211 help 212 Say yes here to enable support for Cadence GPIO controller. 213 214config GPIO_CLPS711X 215 tristate "CLPS711X GPIO support" 216 depends on ARCH_CLPS711X || COMPILE_TEST 217 select GPIO_GENERIC 218 help 219 Say yes here to support GPIO on CLPS711X SoCs. 220 221config GPIO_DAVINCI 222 bool "TI Davinci/Keystone GPIO support" 223 default y if ARCH_DAVINCI 224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 225 help 226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 227 228config GPIO_DWAPB 229 tristate "Synopsys DesignWare APB GPIO driver" 230 select GPIO_GENERIC 231 select GPIOLIB_IRQCHIP 232 help 233 Say Y or M here to build support for the Synopsys DesignWare APB 234 GPIO block. 235 236config GPIO_EIC_SPRD 237 tristate "Spreadtrum EIC support" 238 depends on ARCH_SPRD || COMPILE_TEST 239 depends on OF_GPIO 240 select GPIOLIB_IRQCHIP 241 help 242 Say yes here to support Spreadtrum EIC device. 243 244config GPIO_EM 245 tristate "Emma Mobile GPIO" 246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 247 help 248 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 249 250config GPIO_EP93XX 251 def_bool y 252 depends on ARCH_EP93XX 253 select GPIO_GENERIC 254 select GPIOLIB_IRQCHIP 255 256config GPIO_EXAR 257 tristate "Support for GPIO pins on XR17V352/354/358" 258 depends on SERIAL_8250_EXAR 259 select REGMAP_MMIO 260 help 261 Selecting this option will enable handling of GPIO pins present 262 on Exar XR17V352/354/358 chips. 263 264config GPIO_GE_FPGA 265 bool "GE FPGA based GPIO" 266 depends on GE_FPGA 267 select GPIO_GENERIC 268 help 269 Support for common GPIO functionality provided on some GE Single Board 270 Computers. 271 272 This driver provides basic support (configure as input or output, read 273 and write pin state) for GPIO implemented in a number of GE single 274 board computers. 275 276config GPIO_FTGPIO010 277 bool "Faraday FTGPIO010 GPIO" 278 depends on OF_GPIO 279 select GPIO_GENERIC 280 select GPIOLIB_IRQCHIP 281 default (ARCH_GEMINI || ARCH_MOXART) 282 help 283 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 284 Cortina systems Gemini platforms, Moxa ART and others. 285 286config GPIO_GENERIC_PLATFORM 287 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 288 select GPIO_GENERIC 289 help 290 Say yes here to support basic platform_device memory-mapped GPIO controllers. 291 292config GPIO_GRGPIO 293 tristate "Aeroflex Gaisler GRGPIO support" 294 depends on OF_GPIO 295 select GPIO_GENERIC 296 select IRQ_DOMAIN 297 help 298 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 299 VHDL IP core library. 300 301config GPIO_HISI 302 tristate "HiSilicon GPIO controller driver" 303 depends on (ARM64 && ACPI) || COMPILE_TEST 304 select GPIO_GENERIC 305 select GPIOLIB_IRQCHIP 306 help 307 Say Y or M here to build support for the HiSilicon GPIO controller 308 driver GPIO block. 309 This GPIO controller support double-edge interrupt and multi-core 310 concurrent access. 311 312config GPIO_HLWD 313 tristate "Nintendo Wii (Hollywood) GPIO" 314 depends on OF_GPIO 315 select GPIO_GENERIC 316 select GPIOLIB_IRQCHIP 317 help 318 Select this to support the GPIO controller of the Nintendo Wii. 319 320 If unsure, say N. 321 322config GPIO_ICH 323 tristate "Intel ICH GPIO" 324 depends on X86 325 depends on LPC_ICH 326 help 327 Say yes here to support the GPIO functionality of a number of Intel 328 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 329 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 330 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 331 332 If unsure, say N. 333 334config GPIO_IOP 335 tristate "Intel IOP GPIO" 336 depends on ARCH_IOP32X || COMPILE_TEST 337 select GPIO_GENERIC 338 help 339 Say yes here to support the GPIO functionality of a number of Intel 340 IOP32X or IOP33X. 341 342 If unsure, say N. 343 344config GPIO_IXP4XX 345 bool "Intel IXP4xx GPIO" 346 depends on ARM # For <asm/mach-types.h> 347 depends on ARCH_IXP4XX 348 select GPIO_GENERIC 349 select GPIOLIB_IRQCHIP 350 select IRQ_DOMAIN_HIERARCHY 351 help 352 Say yes here to support the GPIO functionality of a number of Intel 353 IXP4xx series of chips. 354 355 If unsure, say N. 356config GPIO_LOGICVC 357 tristate "Xylon LogiCVC GPIO support" 358 depends on MFD_SYSCON && OF 359 help 360 Say yes here to support GPIO functionality of the Xylon LogiCVC 361 programmable logic block. 362 363config GPIO_LOONGSON 364 bool "Loongson-2/3 GPIO support" 365 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 366 help 367 driver for GPIO functionality on Loongson-2F/3A/3B processors. 368 369config GPIO_LPC18XX 370 tristate "NXP LPC18XX/43XX GPIO support" 371 default y if ARCH_LPC18XX 372 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 373 select IRQ_DOMAIN_HIERARCHY 374 help 375 Select this option to enable GPIO driver for 376 NXP LPC18XX/43XX devices. 377 378config GPIO_LPC32XX 379 tristate "NXP LPC32XX GPIO support" 380 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 381 help 382 Select this option to enable GPIO driver for 383 NXP LPC32XX devices. 384 385config GPIO_MB86S7X 386 tristate "GPIO support for Fujitsu MB86S7x Platforms" 387 help 388 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 389 390config GPIO_MENZ127 391 tristate "MEN 16Z127 GPIO support" 392 depends on MCB 393 select GPIO_GENERIC 394 help 395 Say yes here to support the MEN 16Z127 GPIO Controller 396 397config GPIO_MM_LANTIQ 398 bool "Lantiq Memory mapped GPIOs" 399 depends on LANTIQ && SOC_XWAY 400 help 401 This enables support for memory mapped GPIOs on the External Bus Unit 402 (EBU) found on Lantiq SoCs. The gpios are output only as they are 403 created by attaching a 16bit latch to the bus. 404 405config GPIO_MPC5200 406 def_bool y 407 depends on PPC_MPC52xx 408 409config GPIO_MPC8XXX 410 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 411 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 412 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 413 COMPILE_TEST 414 select GPIO_GENERIC 415 select IRQ_DOMAIN 416 help 417 Say Y here if you're going to use hardware that connects to the 418 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 419 420config GPIO_MT7621 421 bool "Mediatek MT7621 GPIO Support" 422 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 423 depends on OF_GPIO 424 select GPIO_GENERIC 425 select GPIOLIB_IRQCHIP 426 help 427 Say yes here to support the Mediatek MT7621 SoC GPIO device 428 429config GPIO_MVEBU 430 def_bool y 431 depends on PLAT_ORION || ARCH_MVEBU 432 depends on OF_GPIO 433 select GENERIC_IRQ_CHIP 434 select REGMAP_MMIO 435 436config GPIO_MXC 437 tristate "i.MX GPIO support" 438 depends on ARCH_MXC || COMPILE_TEST 439 select GPIO_GENERIC 440 select GENERIC_IRQ_CHIP 441 442config GPIO_MXS 443 bool "Freescale MXS GPIO support" if COMPILE_TEST 444 depends on ARCH_MXS || COMPILE_TEST 445 default y if ARCH_MXS 446 select GPIO_GENERIC 447 select GENERIC_IRQ_CHIP 448 449config GPIO_OCTEON 450 tristate "Cavium OCTEON GPIO" 451 depends on CAVIUM_OCTEON_SOC 452 default y 453 help 454 Say yes here to support the on-chip GPIO lines on the OCTEON 455 family of SOCs. 456 457config GPIO_OMAP 458 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 459 default y if ARCH_OMAP 460 depends on ARM 461 select GENERIC_IRQ_CHIP 462 select GPIOLIB_IRQCHIP 463 help 464 Say yes here to enable GPIO support for TI OMAP SoCs. 465 466config GPIO_PL061 467 tristate "PrimeCell PL061 GPIO support" 468 depends on ARM_AMBA 469 select IRQ_DOMAIN 470 select GPIOLIB_IRQCHIP 471 help 472 Say yes here to support the PrimeCell PL061 GPIO device 473 474config GPIO_PMIC_EIC_SPRD 475 tristate "Spreadtrum PMIC EIC support" 476 depends on MFD_SC27XX_PMIC || COMPILE_TEST 477 depends on OF_GPIO 478 select GPIOLIB_IRQCHIP 479 help 480 Say yes here to support Spreadtrum PMIC EIC device. 481 482config GPIO_PXA 483 bool "PXA GPIO support" 484 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 485 help 486 Say yes here to support the PXA GPIO device 487 488config GPIO_RCAR 489 tristate "Renesas R-Car and RZ/G GPIO support" 490 depends on ARCH_RENESAS || COMPILE_TEST 491 select GPIOLIB_IRQCHIP 492 help 493 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 494 495config GPIO_RDA 496 bool "RDA Micro GPIO controller support" 497 depends on ARCH_RDA || COMPILE_TEST 498 depends on OF_GPIO 499 select GPIO_GENERIC 500 select GPIOLIB_IRQCHIP 501 help 502 Say Y here to support RDA Micro GPIO controller. 503 504config GPIO_REALTEK_OTTO 505 tristate "Realtek Otto GPIO support" 506 depends on MACH_REALTEK_RTL 507 default MACH_REALTEK_RTL 508 select GPIO_GENERIC 509 select GPIOLIB_IRQCHIP 510 help 511 The GPIO controller on the Otto MIPS platform supports up to two 512 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 513 are grouped in four 8-bit wide ports. 514 515 When built as a module, the module will be called realtek_otto_gpio. 516 517config GPIO_REG 518 bool 519 help 520 A 32-bit single register GPIO fixed in/out implementation. This 521 can be used to represent any register as a set of GPIO signals. 522 523config GPIO_SAMA5D2_PIOBU 524 tristate "SAMA5D2 PIOBU GPIO support" 525 depends on MFD_SYSCON 526 depends on OF_GPIO 527 select GPIO_SYSCON 528 help 529 Say yes here to use the PIOBU pins as GPIOs. 530 531 PIOBU pins on the SAMA5D2 can be used as GPIOs. 532 The difference from regular GPIOs is that they 533 maintain their value during backup/self-refresh. 534 535config GPIO_SIFIVE 536 bool "SiFive GPIO support" 537 depends on OF_GPIO 538 select IRQ_DOMAIN_HIERARCHY 539 select GPIO_GENERIC 540 select GPIOLIB_IRQCHIP 541 select REGMAP_MMIO 542 help 543 Say yes here to support the GPIO device on SiFive SoCs. 544 545config GPIO_SIOX 546 tristate "SIOX GPIO support" 547 depends on SIOX 548 select GPIOLIB_IRQCHIP 549 help 550 Say yes here to support SIOX I/O devices. These are units connected 551 via a SIOX bus and have a number of fixed-direction I/O lines. 552 553config GPIO_SNPS_CREG 554 bool "Synopsys GPIO via CREG (Control REGisters) driver" 555 depends on ARC || COMPILE_TEST 556 depends on OF_GPIO 557 help 558 This driver supports GPIOs via CREG on various Synopsys SoCs. 559 This is a single-register MMIO GPIO driver for complex cases 560 where only several fields in register belong to GPIO lines and 561 each GPIO line owns a field with different length and on/off value. 562 563config GPIO_SPEAR_SPICS 564 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 565 depends on PLAT_SPEAR 566 select GENERIC_IRQ_CHIP 567 help 568 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 569 570config GPIO_SPRD 571 tristate "Spreadtrum GPIO support" 572 depends on ARCH_SPRD || COMPILE_TEST 573 depends on OF_GPIO 574 select GPIOLIB_IRQCHIP 575 help 576 Say yes here to support Spreadtrum GPIO device. 577 578config GPIO_STA2X11 579 bool "STA2x11/ConneXt GPIO support" 580 depends on MFD_STA2X11 581 select GENERIC_IRQ_CHIP 582 help 583 Say yes here to support the STA2x11/ConneXt GPIO device. 584 The GPIO module has 128 GPIO pins with alternate functions. 585 586config GPIO_STP_XWAY 587 bool "XWAY STP GPIOs" 588 depends on SOC_XWAY || COMPILE_TEST 589 depends on OF_GPIO 590 help 591 This enables support for the Serial To Parallel (STP) unit found on 592 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 593 that can be up to 24 bit. This peripheral is aimed at driving leds. 594 Some of the gpios/leds can be auto updated by the soc with dsl and 595 phy status. 596 597config GPIO_SYSCON 598 tristate "GPIO based on SYSCON" 599 depends on MFD_SYSCON && OF 600 help 601 Say yes here to support GPIO functionality though SYSCON driver. 602 603config GPIO_TB10X 604 bool 605 select GPIO_GENERIC 606 select GENERIC_IRQ_CHIP 607 select OF_GPIO 608 609config GPIO_TEGRA 610 tristate "NVIDIA Tegra GPIO support" 611 default ARCH_TEGRA 612 depends on ARCH_TEGRA || COMPILE_TEST 613 depends on OF_GPIO 614 select GPIOLIB_IRQCHIP 615 select IRQ_DOMAIN_HIERARCHY 616 help 617 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 618 619config GPIO_TEGRA186 620 tristate "NVIDIA Tegra186 GPIO support" 621 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 622 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 623 depends on OF_GPIO 624 select GPIOLIB_IRQCHIP 625 select IRQ_DOMAIN_HIERARCHY 626 help 627 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 628 629config GPIO_TS4800 630 tristate "TS-4800 DIO blocks and compatibles" 631 depends on OF_GPIO 632 depends on SOC_IMX51 || COMPILE_TEST 633 select GPIO_GENERIC 634 help 635 This driver support TS-4800 FPGA GPIO controllers. 636 637config GPIO_THUNDERX 638 tristate "Cavium ThunderX/OCTEON-TX GPIO" 639 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 640 depends on PCI_MSI 641 select GPIOLIB_IRQCHIP 642 select IRQ_DOMAIN_HIERARCHY 643 select IRQ_FASTEOI_HIERARCHY_HANDLERS 644 help 645 Say yes here to support the on-chip GPIO lines on the ThunderX 646 and OCTEON-TX families of SoCs. 647 648config GPIO_UNIPHIER 649 tristate "UniPhier GPIO support" 650 depends on ARCH_UNIPHIER || COMPILE_TEST 651 depends on OF_GPIO 652 select IRQ_DOMAIN_HIERARCHY 653 help 654 Say yes here to support UniPhier GPIOs. 655 656config GPIO_VF610 657 def_bool y 658 depends on ARCH_MXC && SOC_VF610 659 select GPIOLIB_IRQCHIP 660 help 661 Say yes here to support Vybrid vf610 GPIOs. 662 663config GPIO_VISCONTI 664 tristate "Toshiba Visconti GPIO support" 665 depends on ARCH_VISCONTI || COMPILE_TEST 666 depends on OF_GPIO 667 select GPIOLIB_IRQCHIP 668 select GPIO_GENERIC 669 select IRQ_DOMAIN_HIERARCHY 670 help 671 Say yes here to support GPIO on Tohisba Visconti. 672 673config GPIO_VR41XX 674 tristate "NEC VR4100 series General-purpose I/O Uint support" 675 depends on CPU_VR41XX 676 help 677 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 678 679config GPIO_VX855 680 tristate "VIA VX855/VX875 GPIO" 681 depends on (X86 || COMPILE_TEST) && PCI 682 select MFD_CORE 683 select MFD_VX855 684 help 685 Support access to the VX855/VX875 GPIO lines through the gpio library. 686 687 This driver provides common support for accessing the device, 688 additional drivers must be enabled in order to use the 689 functionality of the device. 690 691config GPIO_WCD934X 692 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver" 693 depends on MFD_WCD934X && OF_GPIO 694 help 695 This driver is to support GPIO block found on the Qualcomm Technologies 696 Inc WCD9340/WCD9341 Audio Codec. 697 698config GPIO_XGENE 699 bool "APM X-Gene GPIO controller support" 700 depends on ARM64 && OF_GPIO 701 help 702 This driver is to support the GPIO block within the APM X-Gene SoC 703 platform's generic flash controller. The GPIO pins are muxed with 704 the generic flash controller's address and data pins. Say yes 705 here to enable the GFC GPIO functionality. 706 707config GPIO_XGENE_SB 708 tristate "APM X-Gene GPIO standby controller support" 709 depends on (ARCH_XGENE || COMPILE_TEST) 710 select GPIO_GENERIC 711 select GPIOLIB_IRQCHIP 712 select IRQ_DOMAIN_HIERARCHY 713 help 714 This driver supports the GPIO block within the APM X-Gene 715 Standby Domain. Say yes here to enable the GPIO functionality. 716 717config GPIO_XILINX 718 tristate "Xilinx GPIO support" 719 select GPIOLIB_IRQCHIP 720 depends on OF_GPIO 721 help 722 Say yes here to support the Xilinx FPGA GPIO device 723 724config GPIO_XLP 725 tristate "Netlogic XLP GPIO support" 726 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 727 select GPIOLIB_IRQCHIP 728 help 729 This driver provides support for GPIO interface on Netlogic XLP MIPS64 730 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 731 XLP9XX and XLP5XX. The same GPIO controller block is also present in 732 Cavium's ThunderX2 CN99XX SoCs. 733 734 If unsure, say N. 735 736config GPIO_XTENSA 737 bool "Xtensa GPIO32 support" 738 depends on XTENSA 739 depends on HAVE_XTENSA_GPIO32 740 depends on !SMP 741 help 742 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 743 and EXPSTATE (output) ports 744 745config GPIO_ZEVIO 746 bool "LSI ZEVIO SoC memory mapped GPIOs" 747 depends on ARM && OF_GPIO 748 help 749 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 750 751config GPIO_ZYNQ 752 tristate "Xilinx Zynq GPIO support" 753 depends on ARCH_ZYNQ || ARCH_ZYNQMP 754 select GPIOLIB_IRQCHIP 755 help 756 Say yes here to support Xilinx Zynq GPIO controller. 757 758config GPIO_LOONGSON1 759 tristate "Loongson1 GPIO support" 760 depends on MACH_LOONGSON32 761 select GPIO_GENERIC 762 help 763 Say Y or M here to support GPIO on Loongson1 SoCs. 764 765config GPIO_AMD_FCH 766 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 767 help 768 This option enables driver for GPIO on AMDs Fusion Controller Hub, 769 as found on G-series SOCs (eg. GX-412TC) 770 771 Note: This driver doesn't registers itself automatically, as it 772 needs to be provided with platform specific configuration. 773 (See eg. CONFIG_PCENGINES_APU2.) 774 775config GPIO_MSC313 776 bool "MStar MSC313 GPIO support" 777 depends on ARCH_MSTARV7 778 default ARCH_MSTARV7 779 select GPIOLIB_IRQCHIP 780 select IRQ_DOMAIN_HIERARCHY 781 help 782 Say Y here to support the main GPIO block on MStar/SigmaStar 783 ARMv7 based SoCs. 784 785config GPIO_IDT3243X 786 tristate "IDT 79RC3243X GPIO support" 787 depends on MIKROTIK_RB532 || COMPILE_TEST 788 select GPIO_GENERIC 789 select GPIOLIB_IRQCHIP 790 help 791 Select this option to enable GPIO driver for 792 IDT 79RC3243X based devices like Mikrotik RB532. 793 794 To compile this driver as a module, choose M here: the module will 795 be called gpio-idt3243x. 796 797endmenu 798 799menu "Port-mapped I/O GPIO drivers" 800 depends on X86 # Unconditional I/O space access 801 802config GPIO_104_DIO_48E 803 tristate "ACCES 104-DIO-48E GPIO support" 804 depends on PC104 805 select ISA_BUS_API 806 select GPIOLIB_IRQCHIP 807 help 808 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 809 104-DIO-24E). The base port addresses for the devices may be 810 configured via the base module parameter. The interrupt line numbers 811 for the devices may be configured via the irq module parameter. 812 813config GPIO_104_IDIO_16 814 tristate "ACCES 104-IDIO-16 GPIO support" 815 depends on PC104 816 select ISA_BUS_API 817 select GPIOLIB_IRQCHIP 818 help 819 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 820 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 821 base port addresses for the devices may be configured via the base 822 module parameter. The interrupt line numbers for the devices may be 823 configured via the irq module parameter. 824 825config GPIO_104_IDI_48 826 tristate "ACCES 104-IDI-48 GPIO support" 827 depends on PC104 828 select ISA_BUS_API 829 select GPIOLIB_IRQCHIP 830 help 831 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 832 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 833 the devices may be configured via the base module parameter. The 834 interrupt line numbers for the devices may be configured via the irq 835 module parameter. 836 837config GPIO_F7188X 838 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 839 help 840 This option enables support for GPIOs found on Fintek Super-I/O 841 chips F71869, F71869A, F71882FG, F71889F and F81866. 842 843 To compile this driver as a module, choose M here: the module will 844 be called f7188x-gpio. 845 846config GPIO_GPIO_MM 847 tristate "Diamond Systems GPIO-MM GPIO support" 848 depends on PC104 849 select ISA_BUS_API 850 help 851 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 852 853 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 854 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 855 support for these 48 channels of digital I/O. 856 857 The base port addresses for the devices may be configured via the base 858 array module parameter. 859 860config GPIO_IT87 861 tristate "IT87xx GPIO support" 862 help 863 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 864 865 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 866 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 867 well. 868 869 To compile this driver as a module, choose M here: the module will 870 be called gpio_it87 871 872config GPIO_SCH 873 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 874 depends on (X86 || COMPILE_TEST) && ACPI 875 depends on LPC_SCH 876 select GPIOLIB_IRQCHIP 877 help 878 Say yes here to support GPIO interface on Intel Poulsbo SCH, 879 Intel Tunnel Creek processor, Intel Centerton processor or 880 Intel Quark X1000 SoC. 881 882 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 883 powered by the core power rail and are turned off during sleep 884 modes (S3 and higher). The remaining four GPIOs are powered by 885 the Intel SCH suspend power supply. These GPIOs remain 886 active during S3. The suspend powered GPIOs can be used to wake the 887 system from the Suspend-to-RAM state. 888 889 The Intel Tunnel Creek processor has 5 GPIOs powered by the 890 core power rail and 9 from suspend power supply. 891 892 The Intel Centerton processor has a total of 30 GPIO pins. 893 Twenty-one are powered by the core power rail and 9 from the 894 suspend power supply. 895 896 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 897 power well and 6 from the suspend power well. 898 899config GPIO_SCH311X 900 tristate "SMSC SCH311x SuperI/O GPIO" 901 help 902 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 903 SCH3116 "Super I/O" chipsets. 904 905 To compile this driver as a module, choose M here: the module will 906 be called gpio-sch311x. 907 908config GPIO_TS5500 909 tristate "TS-5500 DIO blocks and compatibles" 910 depends on TS5500 || COMPILE_TEST 911 help 912 This driver supports Digital I/O exposed by pin blocks found on some 913 Technologic Systems platforms. It includes, but is not limited to, 3 914 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 915 LCD port. 916 917config GPIO_WINBOND 918 tristate "Winbond Super I/O GPIO support" 919 select ISA_BUS_API 920 help 921 This option enables support for GPIOs found on Winbond Super I/O 922 chips. 923 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 924 supported. 925 926 You will need to provide a module parameter "gpios", or a 927 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 928 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 929 930 To compile this driver as a module, choose M here: the module will 931 be called gpio-winbond. 932 933config GPIO_WS16C48 934 tristate "WinSystems WS16C48 GPIO support" 935 select ISA_BUS_API 936 select GPIOLIB_IRQCHIP 937 help 938 Enables GPIO support for the WinSystems WS16C48. The base port 939 addresses for the devices may be configured via the base module 940 parameter. The interrupt line numbers for the devices may be 941 configured via the irq module parameter. 942 943endmenu 944 945menu "I2C GPIO expanders" 946 depends on I2C 947 948config GPIO_ADP5588 949 tristate "ADP5588 I2C GPIO expander" 950 help 951 This option enables support for 18 GPIOs found 952 on Analog Devices ADP5588 GPIO Expanders. 953 954config GPIO_ADP5588_IRQ 955 bool "Interrupt controller support for ADP5588" 956 depends on GPIO_ADP5588=y 957 select GPIOLIB_IRQCHIP 958 help 959 Say yes here to enable the adp5588 to be used as an interrupt 960 controller. It requires the driver to be built in the kernel. 961 962config GPIO_ADNP 963 tristate "Avionic Design N-bit GPIO expander" 964 depends on OF_GPIO 965 select GPIOLIB_IRQCHIP 966 help 967 This option enables support for N GPIOs found on Avionic Design 968 I2C GPIO expanders. The register space will be extended by powers 969 of two, so the controller will need to accommodate for that. For 970 example: if a controller provides 48 pins, 6 registers will be 971 enough to represent all pins, but the driver will assume a 972 register layout for 64 pins (8 registers). 973 974config GPIO_GW_PLD 975 tristate "Gateworks PLD GPIO Expander" 976 depends on OF_GPIO 977 help 978 Say yes here to provide access to the Gateworks I2C PLD GPIO 979 Expander. This is used at least on the Cambria GW2358-4. 980 981config GPIO_MAX7300 982 tristate "Maxim MAX7300 GPIO expander" 983 select GPIO_MAX730X 984 help 985 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 986 987config GPIO_MAX732X 988 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 989 help 990 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 991 Port Expanders. Each IO port on these chips has a fixed role of 992 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 993 Input and Output (designed by 'P'). The combinations are listed 994 below: 995 996 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 997 max7322 (4I4O), max7323 (4P4O) 998 999 16 bits: max7324 (8I8O), max7325 (8P8O), 1000 max7326 (4I12O), max7327 (4P12O) 1001 1002 Board setup code must specify the model to use, and the start 1003 number for these GPIOs. 1004 1005config GPIO_MAX732X_IRQ 1006 bool "Interrupt controller support for MAX732x" 1007 depends on GPIO_MAX732X=y 1008 select GPIOLIB_IRQCHIP 1009 help 1010 Say yes here to enable the max732x to be used as an interrupt 1011 controller. It requires the driver to be built in the kernel. 1012 1013config GPIO_MC9S08DZ60 1014 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 1015 depends on I2C=y && MACH_MX35_3DS 1016 help 1017 Select this to enable the MC9S08DZ60 GPIO driver 1018 1019config GPIO_PCA953X 1020 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1021 select REGMAP_I2C 1022 help 1023 Say yes here to provide access to several register-oriented 1024 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1025 models include: 1026 1027 4 bits: pca9536, pca9537 1028 1029 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1030 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1031 1032 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1033 tca6416 1034 1035 24 bits: tca6424 1036 1037 40 bits: pca9505, pca9698 1038 1039config GPIO_PCA953X_IRQ 1040 bool "Interrupt controller support for PCA953x" 1041 depends on GPIO_PCA953X 1042 select GPIOLIB_IRQCHIP 1043 help 1044 Say yes here to enable the pca953x to be used as an interrupt 1045 controller. It requires the driver to be built in the kernel. 1046 1047config GPIO_PCA9570 1048 tristate "PCA9570 4-Bit I2C GPO expander" 1049 help 1050 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1051 1052 To compile this driver as a module, choose M here: the module will 1053 be called gpio-pca9570. 1054 1055config GPIO_PCF857X 1056 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1057 select GPIOLIB_IRQCHIP 1058 select IRQ_DOMAIN 1059 help 1060 Say yes here to provide access to most "quasi-bidirectional" I2C 1061 GPIO expanders used for additional digital outputs or inputs. 1062 Most of these parts are from NXP, though TI is a second source for 1063 some of them. Compatible models include: 1064 1065 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1066 pca9670, pca9672, pca9674, pca9674a, 1067 max7328, max7329 1068 1069 16 bits: pcf8575, pcf8575c, pca8575, 1070 pca9671, pca9673, pca9675 1071 1072 Your board setup code will need to declare the expanders in 1073 use, and assign numbers to the GPIOs they expose. Those GPIOs 1074 can then be used from drivers and other kernel code, just like 1075 other GPIOs, but only accessible from task contexts. 1076 1077 This driver provides an in-kernel interface to those GPIOs using 1078 platform-neutral GPIO calls. 1079 1080config GPIO_TPIC2810 1081 tristate "TPIC2810 8-Bit I2C GPO expander" 1082 help 1083 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1084 1085 To compile this driver as a module, choose M here: the module will 1086 be called gpio-tpic2810. 1087 1088config GPIO_TS4900 1089 tristate "Technologic Systems FPGA I2C GPIO" 1090 depends on SOC_IMX6 || COMPILE_TEST 1091 select REGMAP_I2C 1092 help 1093 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1094 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1095 1096endmenu 1097 1098menu "MFD GPIO expanders" 1099 1100config GPIO_ADP5520 1101 tristate "GPIO Support for ADP5520 PMIC" 1102 depends on PMIC_ADP5520 1103 help 1104 This option enables support for on-chip GPIO found 1105 on Analog Devices ADP5520 PMICs. 1106 1107config GPIO_ALTERA_A10SR 1108 tristate "Altera Arria10 System Resource GPIO" 1109 depends on MFD_ALTERA_A10SR 1110 help 1111 Driver for Arria10 Development Kit GPIO expansion which 1112 includes reads of pushbuttons and DIP switches as well 1113 as writes to LEDs. 1114 1115config GPIO_ARIZONA 1116 tristate "Wolfson Microelectronics Arizona class devices" 1117 depends on MFD_ARIZONA 1118 help 1119 Support for GPIOs on Wolfson Arizona class devices. 1120 1121config GPIO_BD70528 1122 tristate "ROHM BD70528 GPIO support" 1123 depends on MFD_ROHM_BD70528 1124 help 1125 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs 1126 available on the ROHM PMIC in total. The GPIOs can also 1127 generate interrupts. 1128 1129 This driver can also be built as a module. If so, the module 1130 will be called gpio-bd70528. 1131 1132config GPIO_BD71815 1133 tristate "ROHM BD71815 PMIC GPIO support" 1134 depends on MFD_ROHM_BD71828 1135 help 1136 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1137 available on the ROHM PMIC. 1138 1139 This driver can also be built as a module. If so, the module 1140 will be called gpio-bd71815. 1141 1142config GPIO_BD71828 1143 tristate "ROHM BD71828 GPIO support" 1144 depends on MFD_ROHM_BD71828 1145 help 1146 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1147 available on the ROHM PMIC in total. The GPIOs are limited to 1148 outputs only and pins must be configured to GPIO outputs by 1149 OTP. Enable this only if you want to use these pins as outputs. 1150 1151 This driver can also be built as a module. If so, the module 1152 will be called gpio-bd71828. 1153 1154config GPIO_BD9571MWV 1155 tristate "ROHM BD9571 GPIO support" 1156 depends on MFD_BD9571MWV 1157 help 1158 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1159 available on the ROHM PMIC in total, both of which can also 1160 generate interrupts. 1161 1162 This driver can also be built as a module. If so, the module 1163 will be called gpio-bd9571mwv. 1164 1165config GPIO_CRYSTAL_COVE 1166 tristate "GPIO support for Crystal Cove PMIC" 1167 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1168 select GPIOLIB_IRQCHIP 1169 help 1170 Support for GPIO pins on Crystal Cove PMIC. 1171 1172 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 1173 inside. 1174 1175 This driver can also be built as a module. If so, the module will be 1176 called gpio-crystalcove. 1177 1178config GPIO_CS5535 1179 tristate "AMD CS5535/CS5536 GPIO support" 1180 depends on X86 || MIPS || COMPILE_TEST 1181 depends on MFD_CS5535 1182 help 1183 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1184 can be used for quite a number of things. The CS5535/6 is found on 1185 AMD Geode and Lemote Yeeloong devices. 1186 1187 If unsure, say N. 1188 1189config GPIO_DA9052 1190 tristate "Dialog DA9052 GPIO" 1191 depends on PMIC_DA9052 1192 help 1193 Say yes here to enable the GPIO driver for the DA9052 chip. 1194 1195config GPIO_DA9055 1196 tristate "Dialog Semiconductor DA9055 GPIO" 1197 depends on MFD_DA9055 1198 help 1199 Say yes here to enable the GPIO driver for the DA9055 chip. 1200 1201 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1202 be controller by this driver. 1203 1204 If driver is built as a module it will be called gpio-da9055. 1205 1206config GPIO_DLN2 1207 tristate "Diolan DLN2 GPIO support" 1208 depends on MFD_DLN2 1209 select GPIOLIB_IRQCHIP 1210 1211 help 1212 Select this option to enable GPIO driver for the Diolan DLN2 1213 board. 1214 1215 This driver can also be built as a module. If so, the module 1216 will be called gpio-dln2. 1217 1218config HTC_EGPIO 1219 bool "HTC EGPIO support" 1220 depends on ARM 1221 help 1222 This driver supports the CPLD egpio chip present on 1223 several HTC phones. It provides basic support for input 1224 pins, output pins, and irqs. 1225 1226config GPIO_JANZ_TTL 1227 tristate "Janz VMOD-TTL Digital IO Module" 1228 depends on MFD_JANZ_CMODIO 1229 help 1230 This enables support for the Janz VMOD-TTL Digital IO module. 1231 This driver provides support for driving the pins in output 1232 mode only. Input mode is not supported. 1233 1234config GPIO_KEMPLD 1235 tristate "Kontron ETX / COMexpress GPIO" 1236 depends on MFD_KEMPLD 1237 help 1238 This enables support for the PLD GPIO interface on some Kontron ETX 1239 and COMexpress (ETXexpress) modules. 1240 1241 This driver can also be built as a module. If so, the module will be 1242 called gpio-kempld. 1243 1244config GPIO_LP3943 1245 tristate "TI/National Semiconductor LP3943 GPIO expander" 1246 depends on MFD_LP3943 1247 help 1248 GPIO driver for LP3943 MFD. 1249 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1250 Open drain outputs are required for this usage. 1251 1252config GPIO_LP873X 1253 tristate "TI LP873X GPO" 1254 depends on MFD_TI_LP873X 1255 help 1256 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1257 on LP873X PMICs. 1258 1259 This driver can also be built as a module. If so, the module will be 1260 called gpio-lp873x. 1261 1262config GPIO_LP87565 1263 tristate "TI LP87565 GPIO" 1264 depends on MFD_TI_LP87565 1265 help 1266 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1267 on LP87565 PMICs. 1268 1269 This driver can also be built as a module. If so, the module will be 1270 called gpio-lp87565. 1271 1272config GPIO_MADERA 1273 tristate "Cirrus Logic Madera class codecs" 1274 depends on PINCTRL_MADERA 1275 help 1276 Support for GPIOs on Cirrus Logic Madera class codecs. 1277 1278config GPIO_MAX77620 1279 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1280 depends on MFD_MAX77620 1281 select GPIOLIB_IRQCHIP 1282 help 1283 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1284 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1285 driver also provides interrupt support for each of the gpios. 1286 Say yes here to enable the max77620 to be used as gpio controller. 1287 1288config GPIO_MAX77650 1289 tristate "Maxim MAX77650/77651 GPIO support" 1290 depends on MFD_MAX77650 1291 help 1292 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1293 These chips have a single pin that can be configured as GPIO. 1294 1295config GPIO_PALMAS 1296 bool "TI PALMAS series PMICs GPIO" 1297 depends on MFD_PALMAS 1298 help 1299 Select this option to enable GPIO driver for the TI PALMAS 1300 series chip family. 1301 1302config GPIO_RC5T583 1303 bool "RICOH RC5T583 GPIO" 1304 depends on MFD_RC5T583 1305 help 1306 Select this option to enable GPIO driver for the Ricoh RC5T583 1307 chip family. 1308 This driver provides the support for driving/reading the gpio pins 1309 of RC5T583 device through standard gpio library. 1310 1311config GPIO_SL28CPLD 1312 tristate "Kontron sl28cpld GPIO support" 1313 depends on MFD_SL28CPLD || COMPILE_TEST 1314 select GPIO_REGMAP 1315 select GPIOLIB_IRQCHIP 1316 select REGMAP_IRQ 1317 help 1318 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1319 1320 This driver can also be built as a module. If so, the module will be 1321 called gpio-sl28cpld. 1322 1323config GPIO_STMPE 1324 bool "STMPE GPIOs" 1325 depends on MFD_STMPE 1326 depends on OF_GPIO 1327 select GPIOLIB_IRQCHIP 1328 help 1329 This enables support for the GPIOs found on the STMPE I/O 1330 Expanders. 1331 1332config GPIO_TC3589X 1333 bool "TC3589X GPIOs" 1334 depends on MFD_TC3589X 1335 depends on OF_GPIO 1336 select GPIOLIB_IRQCHIP 1337 help 1338 This enables support for the GPIOs found on the TC3589X 1339 I/O Expander. 1340 1341config GPIO_TIMBERDALE 1342 bool "Support for timberdale GPIO IP" 1343 depends on MFD_TIMBERDALE 1344 help 1345 Add support for the GPIO IP in the timberdale FPGA. 1346 1347config GPIO_TPS65086 1348 tristate "TI TPS65086 GPO" 1349 depends on MFD_TPS65086 1350 help 1351 This driver supports the GPO on TI TPS65086x PMICs. 1352 1353config GPIO_TPS65218 1354 tristate "TPS65218 GPIO" 1355 depends on MFD_TPS65218 1356 help 1357 Select this option to enable GPIO driver for the TPS65218 1358 chip family. 1359 1360config GPIO_TPS6586X 1361 bool "TPS6586X GPIO" 1362 depends on MFD_TPS6586X 1363 help 1364 Select this option to enable GPIO driver for the TPS6586X 1365 chip family. 1366 1367config GPIO_TPS65910 1368 bool "TPS65910 GPIO" 1369 depends on MFD_TPS65910 1370 help 1371 Select this option to enable GPIO driver for the TPS65910 1372 chip family. 1373 1374config GPIO_TPS65912 1375 tristate "TI TPS65912 GPIO" 1376 depends on MFD_TPS65912 1377 help 1378 This driver supports TPS65912 gpio chip 1379 1380config GPIO_TPS68470 1381 bool "TPS68470 GPIO" 1382 depends on INTEL_SKL_INT3472 1383 help 1384 Select this option to enable GPIO driver for the TPS68470 1385 chip family. 1386 There are 7 GPIOs and few sensor related GPIOs supported 1387 by the TPS68470. While the 7 GPIOs can be configured as 1388 input or output as appropriate, the sensor related GPIOs 1389 are "output only" GPIOs. 1390 1391 This driver config is bool, as the GPIO functionality 1392 of the TPS68470 must be available before dependent 1393 drivers are loaded. 1394 1395config GPIO_TQMX86 1396 tristate "TQ-Systems QTMX86 GPIO" 1397 depends on MFD_TQMX86 || COMPILE_TEST 1398 depends on HAS_IOPORT_MAP 1399 select GPIOLIB_IRQCHIP 1400 help 1401 This driver supports GPIO on the TQMX86 IO controller. 1402 1403config GPIO_TWL4030 1404 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1405 depends on TWL4030_CORE 1406 help 1407 Say yes here to access the GPIO signals of various multi-function 1408 power management chips from Texas Instruments. 1409 1410config GPIO_TWL6040 1411 tristate "TWL6040 GPO" 1412 depends on TWL6040_CORE 1413 help 1414 Say yes here to access the GPO signals of twl6040 1415 audio chip from Texas Instruments. 1416 1417config GPIO_UCB1400 1418 tristate "Philips UCB1400 GPIO" 1419 depends on UCB1400_CORE 1420 help 1421 This enables support for the Philips UCB1400 GPIO pins. 1422 The UCB1400 is an AC97 audio codec. 1423 1424config GPIO_WHISKEY_COVE 1425 tristate "GPIO support for Whiskey Cove PMIC" 1426 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1427 select GPIOLIB_IRQCHIP 1428 help 1429 Support for GPIO pins on Whiskey Cove PMIC. 1430 1431 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC 1432 inside. 1433 1434 This driver can also be built as a module. If so, the module will be 1435 called gpio-wcove. 1436 1437config GPIO_WM831X 1438 tristate "WM831x GPIOs" 1439 depends on MFD_WM831X 1440 help 1441 Say yes here to access the GPIO signals of WM831x power management 1442 chips from Wolfson Microelectronics. 1443 1444config GPIO_WM8350 1445 tristate "WM8350 GPIOs" 1446 depends on MFD_WM8350 1447 help 1448 Say yes here to access the GPIO signals of WM8350 power management 1449 chips from Wolfson Microelectronics. 1450 1451config GPIO_WM8994 1452 tristate "WM8994 GPIOs" 1453 depends on MFD_WM8994 1454 help 1455 Say yes here to access the GPIO signals of WM8994 audio hub 1456 CODECs from Wolfson Microelectronics. 1457 1458endmenu 1459 1460menu "PCI GPIO expanders" 1461 depends on PCI 1462 1463config GPIO_AMD8111 1464 tristate "AMD 8111 GPIO driver" 1465 depends on X86 || COMPILE_TEST 1466 depends on HAS_IOPORT_MAP 1467 help 1468 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1469 1470 Note, that usually system firmware/ACPI handles GPIO pins on their 1471 own and users might easily break their systems with uncarefull usage 1472 of this driver! 1473 1474 If unsure, say N 1475 1476config GPIO_BT8XX 1477 tristate "BT8XX GPIO abuser" 1478 depends on VIDEO_BT848=n 1479 help 1480 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1481 as a cheap PCI GPIO card. 1482 1483 This chip can be found on Miro, Hauppauge and STB TV-cards. 1484 1485 The card needs to be physically altered for using it as a 1486 GPIO card. For more information on how to build a GPIO card 1487 from a BT8xx TV card, see the documentation file at 1488 Documentation/driver-api/gpio/bt8xxgpio.rst 1489 1490 If unsure, say N. 1491 1492config GPIO_MERRIFIELD 1493 tristate "Intel Merrifield GPIO support" 1494 depends on X86_INTEL_MID 1495 select GPIOLIB_IRQCHIP 1496 help 1497 Say Y here to support Intel Merrifield GPIO. 1498 1499config GPIO_MLXBF 1500 tristate "Mellanox BlueField SoC GPIO" 1501 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1502 select GPIO_GENERIC 1503 help 1504 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1505 1506config GPIO_MLXBF2 1507 tristate "Mellanox BlueField 2 SoC GPIO" 1508 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1509 select GPIO_GENERIC 1510 help 1511 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1512 1513config GPIO_ML_IOH 1514 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1515 depends on X86 || COMPILE_TEST 1516 select GENERIC_IRQ_CHIP 1517 help 1518 ML7213 is companion chip for Intel Atom E6xx series. 1519 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1520 Hub) which is for IVI(In-Vehicle Infotainment) use. 1521 This driver can access the IOH's GPIO device. 1522 1523config GPIO_PCH 1524 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1525 depends on X86_32 || MIPS || COMPILE_TEST 1526 select GENERIC_IRQ_CHIP 1527 help 1528 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1529 which is an IOH(Input/Output Hub) for x86 embedded processor. 1530 This driver can access PCH GPIO device. 1531 1532 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1533 Output Hub), ML7223 and ML7831. 1534 ML7223 IOH is for MP(Media Phone) use. 1535 ML7831 IOH is for general purpose use. 1536 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1537 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1538 1539config GPIO_PCI_IDIO_16 1540 tristate "ACCES PCI-IDIO-16 GPIO support" 1541 select GPIOLIB_IRQCHIP 1542 help 1543 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1544 generated when any of the inputs change state (low to high or high to 1545 low). Input filter control is not supported by this driver, and the 1546 input filters are deactivated by this driver. 1547 1548config GPIO_PCIE_IDIO_24 1549 tristate "ACCES PCIe-IDIO-24 GPIO support" 1550 select GPIOLIB_IRQCHIP 1551 help 1552 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1553 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1554 when any of the inputs change state (low to high or high to low). 1555 Input filter control is not supported by this driver, and the input 1556 filters are deactivated by this driver. 1557 1558config GPIO_RDC321X 1559 tristate "RDC R-321x GPIO support" 1560 select MFD_CORE 1561 select MFD_RDC321X 1562 help 1563 Support for the RDC R321x SoC GPIOs over southbridge 1564 PCI configuration space. 1565 1566config GPIO_SODAVILLE 1567 bool "Intel Sodaville GPIO support" 1568 depends on X86 && OF 1569 select GPIO_GENERIC 1570 select GENERIC_IRQ_CHIP 1571 help 1572 Say Y here to support Intel Sodaville GPIO. 1573 1574endmenu 1575 1576menu "SPI GPIO expanders" 1577 depends on SPI_MASTER 1578 1579config GPIO_74X164 1580 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1581 depends on OF_GPIO 1582 help 1583 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1584 shift registers. This driver can be used to provide access 1585 to more gpio outputs. 1586 1587config GPIO_MAX3191X 1588 tristate "Maxim MAX3191x industrial serializer" 1589 select CRC8 1590 help 1591 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1592 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1593 chip to make 8 digital 24V inputs available via SPI. Supports 1594 CRC checksums to guard against electromagnetic interference, 1595 as well as undervoltage and overtemperature detection. 1596 1597config GPIO_MAX7301 1598 tristate "Maxim MAX7301 GPIO expander" 1599 select GPIO_MAX730X 1600 help 1601 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1602 1603config GPIO_MC33880 1604 tristate "Freescale MC33880 high-side/low-side switch" 1605 help 1606 SPI driver for Freescale MC33880 high-side/low-side switch. 1607 This provides GPIO interface supporting inputs and outputs. 1608 1609config GPIO_PISOSR 1610 tristate "Generic parallel-in/serial-out shift register" 1611 help 1612 GPIO driver for SPI compatible parallel-in/serial-out shift 1613 registers. These are input only devices. 1614 1615config GPIO_XRA1403 1616 tristate "EXAR XRA1403 16-bit GPIO expander" 1617 select REGMAP_SPI 1618 help 1619 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1620 1621config GPIO_MOXTET 1622 tristate "Turris Mox Moxtet bus GPIO expander" 1623 depends on MOXTET 1624 help 1625 Say yes here if you are building for the Turris Mox router. 1626 This is the driver needed for configuring the GPIOs via the Moxtet 1627 bus. For example the Mox module with SFP cage needs this driver 1628 so that phylink can use corresponding GPIOs. 1629 1630endmenu 1631 1632menu "USB GPIO expanders" 1633 depends on USB 1634 1635config GPIO_VIPERBOARD 1636 tristate "Viperboard GPIO a & b support" 1637 depends on MFD_VIPERBOARD 1638 help 1639 Say yes here to access the GPIO signals of Nano River 1640 Technologies Viperboard. There are two GPIO chips on the 1641 board: gpioa and gpiob. 1642 See viperboard API specification and Nano 1643 River Tech's viperboard.h for detailed meaning 1644 of the module parameters. 1645 1646endmenu 1647 1648menu "Virtual GPIO drivers" 1649 1650config GPIO_AGGREGATOR 1651 tristate "GPIO Aggregator" 1652 help 1653 Say yes here to enable the GPIO Aggregator, which provides a way to 1654 aggregate existing GPIO lines into a new virtual GPIO chip. 1655 This can serve the following purposes: 1656 - Assign permissions for a collection of GPIO lines to a user, 1657 - Export a collection of GPIO lines to a virtual machine, 1658 - Provide a generic driver for a GPIO-operated device in an 1659 industrial control context, to be operated from userspace using 1660 the GPIO chardev interface. 1661 1662config GPIO_MOCKUP 1663 tristate "GPIO Testing Driver" 1664 select IRQ_SIM 1665 help 1666 This enables GPIO Testing driver, which provides a way to test GPIO 1667 subsystem through sysfs (or char device) and debugfs. 1668 User could use it through the script in 1669 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1670 it. 1671 1672endmenu 1673 1674endif 1675