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 Requires 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_EN7523 251 tristate "Airoha GPIO support" 252 depends on ARCH_AIROHA 253 default ARCH_AIROHA 254 select GPIO_GENERIC 255 select GPIOLIB_IRQCHIP 256 help 257 Say Y or M here to support the GPIO controller block on the 258 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 259 260config GPIO_EP93XX 261 def_bool y 262 depends on ARCH_EP93XX 263 select GPIO_GENERIC 264 select GPIOLIB_IRQCHIP 265 266config GPIO_EXAR 267 tristate "Support for GPIO pins on XR17V352/354/358" 268 depends on SERIAL_8250_EXAR 269 select REGMAP_MMIO 270 help 271 Selecting this option will enable handling of GPIO pins present 272 on Exar XR17V352/354/358 chips. 273 274config GPIO_GE_FPGA 275 bool "GE FPGA based GPIO" 276 depends on GE_FPGA 277 select GPIO_GENERIC 278 help 279 Support for common GPIO functionality provided on some GE Single Board 280 Computers. 281 282 This driver provides basic support (configure as input or output, read 283 and write pin state) for GPIO implemented in a number of GE single 284 board computers. 285 286config GPIO_FTGPIO010 287 bool "Faraday FTGPIO010 GPIO" 288 depends on OF_GPIO 289 select GPIO_GENERIC 290 select GPIOLIB_IRQCHIP 291 default (ARCH_GEMINI || ARCH_MOXART) 292 help 293 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 294 Cortina systems Gemini platforms, Moxa ART and others. 295 296config GPIO_GENERIC_PLATFORM 297 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 298 select GPIO_GENERIC 299 help 300 Say yes here to support basic platform_device memory-mapped GPIO controllers. 301 302config GPIO_GRGPIO 303 tristate "Aeroflex Gaisler GRGPIO support" 304 depends on OF_GPIO 305 select GPIO_GENERIC 306 select IRQ_DOMAIN 307 help 308 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 309 VHDL IP core library. 310 311config GPIO_HISI 312 tristate "HiSilicon GPIO controller driver" 313 depends on (ARM64 && ACPI) || COMPILE_TEST 314 select GPIO_GENERIC 315 select GPIOLIB_IRQCHIP 316 help 317 Say Y or M here to build support for the HiSilicon GPIO controller 318 driver GPIO block. 319 This GPIO controller supports double-edge interrupt and multi-core 320 concurrent access. 321 322config GPIO_HLWD 323 tristate "Nintendo Wii (Hollywood) GPIO" 324 depends on OF_GPIO 325 select GPIO_GENERIC 326 select GPIOLIB_IRQCHIP 327 help 328 Select this to support the GPIO controller of the Nintendo Wii. 329 330 If unsure, say N. 331 332config GPIO_ICH 333 tristate "Intel ICH GPIO" 334 depends on X86 335 depends on LPC_ICH 336 help 337 Say yes here to support the GPIO functionality of a number of Intel 338 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 339 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 340 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 341 342 If unsure, say N. 343 344config GPIO_IOP 345 tristate "Intel IOP GPIO" 346 depends on ARCH_IOP32X || COMPILE_TEST 347 select GPIO_GENERIC 348 help 349 Say yes here to support the GPIO functionality of a number of Intel 350 IOP32X or IOP33X series of chips. 351 352 If unsure, say N. 353 354config GPIO_IXP4XX 355 bool "Intel IXP4xx GPIO" 356 depends on ARCH_IXP4XX 357 depends on OF 358 select GPIO_GENERIC 359 select GPIOLIB_IRQCHIP 360 select IRQ_DOMAIN_HIERARCHY 361 help 362 Say yes here to support the GPIO functionality of a number of Intel 363 IXP4xx series of chips. 364 365 If unsure, say N. 366 367config GPIO_LOGICVC 368 tristate "Xylon LogiCVC GPIO support" 369 depends on MFD_SYSCON && OF 370 help 371 Say yes here to support GPIO functionality of the Xylon LogiCVC 372 programmable logic block. 373 374config GPIO_LOONGSON 375 bool "Loongson-2/3 GPIO support" 376 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 377 help 378 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 379 380config GPIO_LPC18XX 381 tristate "NXP LPC18XX/43XX GPIO support" 382 default y if ARCH_LPC18XX 383 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 384 select IRQ_DOMAIN_HIERARCHY 385 help 386 Select this option to enable GPIO driver for 387 NXP LPC18XX/43XX devices. 388 389config GPIO_LPC32XX 390 tristate "NXP LPC32XX GPIO support" 391 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 392 help 393 Select this option to enable GPIO driver for 394 NXP LPC32XX devices. 395 396config GPIO_MB86S7X 397 tristate "GPIO support for Fujitsu MB86S7x Platforms" 398 help 399 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 400 401config GPIO_MENZ127 402 tristate "MEN 16Z127 GPIO support" 403 depends on MCB 404 select GPIO_GENERIC 405 help 406 Say yes here to support the MEN 16Z127 GPIO Controller. 407 408config GPIO_MM_LANTIQ 409 bool "Lantiq Memory mapped GPIOs" 410 depends on LANTIQ && SOC_XWAY 411 help 412 This enables support for memory mapped GPIOs on the External Bus Unit 413 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 414 created by attaching a 16-bit latch to the bus. 415 416config GPIO_MPC5200 417 def_bool y 418 depends on PPC_MPC52xx 419 420config GPIO_MPC8XXX 421 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 422 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 423 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 424 COMPILE_TEST 425 select GPIO_GENERIC 426 select IRQ_DOMAIN 427 help 428 Say Y here if you're going to use hardware that connects to the 429 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 430 431config GPIO_MT7621 432 bool "Mediatek MT7621 GPIO Support" 433 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 434 depends on OF_GPIO 435 select GPIO_GENERIC 436 select GPIOLIB_IRQCHIP 437 help 438 Say yes here to support the Mediatek MT7621 SoC GPIO device. 439 440config GPIO_MVEBU 441 def_bool y 442 depends on PLAT_ORION || ARCH_MVEBU 443 depends on OF_GPIO 444 select GENERIC_IRQ_CHIP 445 select REGMAP_MMIO 446 447config GPIO_MXC 448 tristate "i.MX GPIO support" 449 depends on ARCH_MXC || COMPILE_TEST 450 select GPIO_GENERIC 451 select GENERIC_IRQ_CHIP 452 453config GPIO_MXS 454 bool "Freescale MXS GPIO support" if COMPILE_TEST 455 depends on ARCH_MXS || COMPILE_TEST 456 default y if ARCH_MXS 457 select GPIO_GENERIC 458 select GENERIC_IRQ_CHIP 459 460config GPIO_OCTEON 461 tristate "Cavium OCTEON GPIO" 462 depends on CAVIUM_OCTEON_SOC 463 default y 464 help 465 Say yes here to support the on-chip GPIO lines on the OCTEON 466 family of SOCs. 467 468config GPIO_OMAP 469 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 470 default y if ARCH_OMAP 471 depends on ARM 472 select GENERIC_IRQ_CHIP 473 select GPIOLIB_IRQCHIP 474 help 475 Say yes here to enable GPIO support for TI OMAP SoCs. 476 477config GPIO_PL061 478 tristate "PrimeCell PL061 GPIO support" 479 depends on ARM_AMBA 480 select IRQ_DOMAIN 481 select GPIOLIB_IRQCHIP 482 help 483 Say yes here to support the PrimeCell PL061 GPIO device. 484 485config GPIO_PMIC_EIC_SPRD 486 tristate "Spreadtrum PMIC EIC support" 487 depends on MFD_SC27XX_PMIC || COMPILE_TEST 488 depends on OF_GPIO 489 select GPIOLIB_IRQCHIP 490 help 491 Say yes here to support Spreadtrum PMIC EIC device. 492 493config GPIO_PXA 494 bool "PXA GPIO support" 495 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 496 help 497 Say yes here to support the PXA GPIO device. 498 499config GPIO_RCAR 500 tristate "Renesas R-Car and RZ/G GPIO support" 501 depends on ARCH_RENESAS || COMPILE_TEST 502 select GPIOLIB_IRQCHIP 503 help 504 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 505 506config GPIO_RDA 507 bool "RDA Micro GPIO controller support" 508 depends on ARCH_RDA || COMPILE_TEST 509 depends on OF_GPIO 510 select GPIO_GENERIC 511 select GPIOLIB_IRQCHIP 512 help 513 Say Y here to support RDA Micro GPIO controller. 514 515config GPIO_REALTEK_OTTO 516 tristate "Realtek Otto GPIO support" 517 depends on MACH_REALTEK_RTL 518 default MACH_REALTEK_RTL 519 select GPIO_GENERIC 520 select GPIOLIB_IRQCHIP 521 help 522 The GPIO controller on the Otto MIPS platform supports up to two 523 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 524 are grouped in four 8-bit wide ports. 525 526 When built as a module, the module will be called realtek_otto_gpio. 527 528config GPIO_REG 529 bool 530 help 531 A 32-bit single register GPIO fixed in/out implementation. This 532 can be used to represent any register as a set of GPIO signals. 533 534config GPIO_ROCKCHIP 535 tristate "Rockchip GPIO support" 536 depends on ARCH_ROCKCHIP || COMPILE_TEST 537 select GENERIC_IRQ_CHIP 538 select GPIOLIB_IRQCHIP 539 default ARCH_ROCKCHIP 540 help 541 Say yes here to support GPIO on Rockchip SoCs. 542 543config GPIO_SAMA5D2_PIOBU 544 tristate "SAMA5D2 PIOBU GPIO support" 545 depends on MFD_SYSCON 546 depends on OF_GPIO 547 depends on ARCH_AT91 || COMPILE_TEST 548 select GPIO_SYSCON 549 help 550 Say yes here to use the PIOBU pins as GPIOs. 551 552 PIOBU pins on the SAMA5D2 can be used as GPIOs. 553 The difference from regular GPIOs is that they 554 maintain their value during backup/self-refresh. 555 556config GPIO_SIFIVE 557 bool "SiFive GPIO support" 558 depends on OF_GPIO 559 select IRQ_DOMAIN_HIERARCHY 560 select GPIO_GENERIC 561 select GPIOLIB_IRQCHIP 562 select REGMAP_MMIO 563 help 564 Say yes here to support the GPIO device on SiFive SoCs. 565 566config GPIO_SIOX 567 tristate "SIOX GPIO support" 568 depends on SIOX 569 select GPIOLIB_IRQCHIP 570 help 571 Say yes here to support SIOX I/O devices. These are units connected 572 via a SIOX bus and have a number of fixed-direction I/O lines. 573 574config GPIO_SNPS_CREG 575 bool "Synopsys GPIO via CREG (Control REGisters) driver" 576 depends on ARC || COMPILE_TEST 577 depends on OF_GPIO 578 help 579 This driver supports GPIOs via CREG on various Synopsys SoCs. 580 This is a single-register MMIO GPIO driver for complex cases 581 where only several fields in register belong to GPIO lines and 582 each GPIO line owns a field with different length and on/off value. 583 584config GPIO_SPEAR_SPICS 585 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 586 depends on PLAT_SPEAR 587 select GENERIC_IRQ_CHIP 588 help 589 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 590 591config GPIO_SPRD 592 tristate "Spreadtrum GPIO support" 593 depends on ARCH_SPRD || COMPILE_TEST 594 depends on OF_GPIO 595 select GPIOLIB_IRQCHIP 596 help 597 Say yes here to support Spreadtrum GPIO device. 598 599config GPIO_STA2X11 600 bool "STA2x11/ConneXt GPIO support" 601 depends on MFD_STA2X11 602 select GENERIC_IRQ_CHIP 603 help 604 Say yes here to support the STA2x11/ConneXt GPIO device. 605 The GPIO module has 128 GPIO pins with alternate functions. 606 607config GPIO_STP_XWAY 608 bool "XWAY STP GPIOs" 609 depends on SOC_XWAY || COMPILE_TEST 610 depends on OF_GPIO 611 help 612 This enables support for the Serial To Parallel (STP) unit found on 613 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 614 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 615 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 616 phy status. 617 618config GPIO_SYSCON 619 tristate "GPIO based on SYSCON" 620 depends on MFD_SYSCON && OF 621 help 622 Say yes here to support GPIO functionality though SYSCON driver. 623 624config GPIO_TB10X 625 bool 626 select GPIO_GENERIC 627 select GENERIC_IRQ_CHIP 628 select OF_GPIO 629 630config GPIO_TEGRA 631 tristate "NVIDIA Tegra GPIO support" 632 default ARCH_TEGRA 633 depends on ARCH_TEGRA || COMPILE_TEST 634 depends on OF_GPIO 635 select GPIOLIB_IRQCHIP 636 select IRQ_DOMAIN_HIERARCHY 637 help 638 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 639 640config GPIO_TEGRA186 641 tristate "NVIDIA Tegra186 GPIO support" 642 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 643 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 644 depends on OF_GPIO 645 select GPIOLIB_IRQCHIP 646 select IRQ_DOMAIN_HIERARCHY 647 help 648 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 649 650config GPIO_TS4800 651 tristate "TS-4800 DIO blocks and compatibles" 652 depends on OF_GPIO 653 depends on SOC_IMX51 || COMPILE_TEST 654 select GPIO_GENERIC 655 help 656 This driver support TS-4800 FPGA GPIO controllers. 657 658config GPIO_THUNDERX 659 tristate "Cavium ThunderX/OCTEON-TX GPIO" 660 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 661 depends on PCI_MSI 662 select GPIOLIB_IRQCHIP 663 select IRQ_DOMAIN_HIERARCHY 664 select IRQ_FASTEOI_HIERARCHY_HANDLERS 665 help 666 Say yes here to support the on-chip GPIO lines on the ThunderX 667 and OCTEON-TX families of SoCs. 668 669config GPIO_UNIPHIER 670 tristate "UniPhier GPIO support" 671 depends on ARCH_UNIPHIER || COMPILE_TEST 672 depends on OF_GPIO 673 select IRQ_DOMAIN_HIERARCHY 674 help 675 Say yes here to support UniPhier GPIOs. 676 677config GPIO_VF610 678 def_bool y 679 depends on ARCH_MXC 680 select GPIOLIB_IRQCHIP 681 help 682 Say yes here to support i.MX or Vybrid vf610 GPIOs. 683 684config GPIO_VISCONTI 685 tristate "Toshiba Visconti GPIO support" 686 depends on ARCH_VISCONTI || COMPILE_TEST 687 depends on OF_GPIO 688 select GPIOLIB_IRQCHIP 689 select GPIO_GENERIC 690 select IRQ_DOMAIN_HIERARCHY 691 help 692 Say yes here to support GPIO on Tohisba Visconti. 693 694config GPIO_VX855 695 tristate "VIA VX855/VX875 GPIO" 696 depends on (X86 || COMPILE_TEST) && PCI 697 select MFD_CORE 698 select MFD_VX855 699 help 700 Support access to the VX855/VX875 GPIO lines through the GPIO library. 701 702 This driver provides common support for accessing the device. 703 Additional drivers must be enabled in order to use the 704 functionality of the device. 705 706config GPIO_WCD934X 707 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 708 depends on MFD_WCD934X && OF_GPIO 709 help 710 This driver is to support GPIO block found on the Qualcomm Technologies 711 Inc WCD9340/WCD9341 Audio Codec. 712 713config GPIO_XGENE 714 bool "APM X-Gene GPIO controller support" 715 depends on ARM64 && OF_GPIO 716 help 717 This driver is to support the GPIO block within the APM X-Gene SoC 718 platform's generic flash controller. The GPIO pins are muxed with 719 the generic flash controller's address and data pins. Say yes 720 here to enable the GFC GPIO functionality. 721 722config GPIO_XGENE_SB 723 tristate "APM X-Gene GPIO standby controller support" 724 depends on (ARCH_XGENE || COMPILE_TEST) 725 select GPIO_GENERIC 726 select GPIOLIB_IRQCHIP 727 select IRQ_DOMAIN_HIERARCHY 728 help 729 This driver supports the GPIO block within the APM X-Gene 730 Standby Domain. Say yes here to enable the GPIO functionality. 731 732config GPIO_XILINX 733 tristate "Xilinx GPIO support" 734 select GPIOLIB_IRQCHIP 735 depends on OF_GPIO 736 help 737 Say yes here to support the Xilinx FPGA GPIO device. 738 739config GPIO_XLP 740 tristate "Cavium ThunderX2 GPIO support" 741 depends on ARCH_THUNDER2 || COMPILE_TEST 742 select GPIOLIB_IRQCHIP 743 help 744 This driver provides support for GPIO interface on Cavium's ThunderX2 745 CN99XX SoCs (Originally from Netlogic XLP). 746 747 If unsure, say N. 748 749config GPIO_XTENSA 750 bool "Xtensa GPIO32 support" 751 depends on XTENSA 752 depends on HAVE_XTENSA_GPIO32 753 depends on !SMP 754 help 755 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 756 and EXPSTATE (output) ports. 757 758config GPIO_ZEVIO 759 bool "LSI ZEVIO SoC memory mapped GPIOs" 760 depends on ARM && OF_GPIO 761 help 762 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 763 764config GPIO_ZYNQ 765 tristate "Xilinx Zynq GPIO support" 766 depends on ARCH_ZYNQ || ARCH_ZYNQMP 767 select GPIOLIB_IRQCHIP 768 help 769 Say yes here to support Xilinx Zynq GPIO controller. 770 771config GPIO_ZYNQMP_MODEPIN 772 tristate "ZynqMP ps-mode pin GPIO configuration driver" 773 depends on ZYNQMP_FIRMWARE 774 default ZYNQMP_FIRMWARE 775 help 776 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 777 driver. 778 779 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 780 is 4-bits boot mode pins. It sets and gets the status of 781 the ps-mode pin. Every pin can be configured as input/output. 782 783config GPIO_LOONGSON1 784 tristate "Loongson1 GPIO support" 785 depends on MACH_LOONGSON32 786 select GPIO_GENERIC 787 help 788 Say Y or M here to support GPIO on Loongson1 SoCs. 789 790config GPIO_AMD_FCH 791 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 792 help 793 This option enables driver for GPIO on AMD's Fusion Controller Hub, 794 as found on G-series SOCs (e.g. GX-412TC). 795 796 Note: This driver doesn't register itself automatically, as it 797 needs to be provided with platform-specific configuration. 798 (See e.g. CONFIG_PCENGINES_APU2.) 799 800config GPIO_MSC313 801 bool "MStar MSC313 GPIO support" 802 depends on ARCH_MSTARV7 803 default ARCH_MSTARV7 804 select GPIOLIB_IRQCHIP 805 select IRQ_DOMAIN_HIERARCHY 806 help 807 Say Y here to support the main GPIO block on MStar/SigmaStar 808 ARMv7-based SoCs. 809 810config GPIO_IDT3243X 811 tristate "IDT 79RC3243X GPIO support" 812 depends on MIKROTIK_RB532 || COMPILE_TEST 813 select GPIO_GENERIC 814 select GPIOLIB_IRQCHIP 815 help 816 Select this option to enable GPIO driver for 817 IDT 79RC3243X-based devices like Mikrotik RB532. 818 819 To compile this driver as a module, choose M here: the module will 820 be called gpio-idt3243x. 821 822endmenu 823 824menu "Port-mapped I/O GPIO drivers" 825 depends on X86 # Unconditional I/O space access 826 827config GPIO_I8255 828 tristate 829 help 830 Enables support for the i8255 interface library functions. The i8255 831 interface library provides functions to facilitate communication with 832 interfaces compatible with the venerable Intel 8255 Programmable 833 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 834 in the early 1970s but compatible interfaces are nowadays typically 835 found embedded in larger VLSI processing chips and FPGA components. 836 837 If built as a module its name will be gpio-i8255. 838 839config GPIO_104_DIO_48E 840 tristate "ACCES 104-DIO-48E GPIO support" 841 depends on PC104 842 select ISA_BUS_API 843 select GPIOLIB_IRQCHIP 844 select GPIO_I8255 845 help 846 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 847 104-DIO-24E). The base port addresses for the devices may be 848 configured via the base module parameter. The interrupt line numbers 849 for the devices may be configured via the irq module parameter. 850 851config GPIO_104_IDIO_16 852 tristate "ACCES 104-IDIO-16 GPIO support" 853 depends on PC104 854 select ISA_BUS_API 855 select GPIOLIB_IRQCHIP 856 help 857 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 858 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 859 base port addresses for the devices may be configured via the base 860 module parameter. The interrupt line numbers for the devices may be 861 configured via the irq module parameter. 862 863config GPIO_104_IDI_48 864 tristate "ACCES 104-IDI-48 GPIO support" 865 depends on PC104 866 select ISA_BUS_API 867 select GPIOLIB_IRQCHIP 868 select GPIO_I8255 869 help 870 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 871 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 872 the devices may be configured via the base module parameter. The 873 interrupt line numbers for the devices may be configured via the irq 874 module parameter. 875 876config GPIO_F7188X 877 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 878 help 879 This option enables support for GPIOs found on Fintek Super-I/O 880 chips F71869, F71869A, F71882FG, F71889F and F81866. 881 882 To compile this driver as a module, choose M here: the module will 883 be called f7188x-gpio. 884 885config GPIO_GPIO_MM 886 tristate "Diamond Systems GPIO-MM GPIO support" 887 depends on PC104 888 select ISA_BUS_API 889 select GPIO_I8255 890 help 891 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 892 893 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 894 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 895 support for these 48 channels of digital I/O. 896 897 The base port addresses for the devices may be configured via the base 898 array module parameter. 899 900config GPIO_IT87 901 tristate "IT87xx GPIO support" 902 help 903 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 904 905 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 906 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 907 well. 908 909 To compile this driver as a module, choose M here: the module will 910 be called gpio_it87. 911 912config GPIO_SCH 913 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 914 depends on (X86 || COMPILE_TEST) && ACPI 915 depends on LPC_SCH 916 select GPIOLIB_IRQCHIP 917 help 918 Say yes here to support GPIO interface on Intel Poulsbo SCH, 919 Intel Tunnel Creek processor, Intel Centerton processor or 920 Intel Quark X1000 SoC. 921 922 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 923 powered by the core power rail and are turned off during sleep 924 modes (S3 and higher). The remaining four GPIOs are powered by 925 the Intel SCH suspend power supply. These GPIOs remain 926 active during S3. The suspend-powered GPIOs can be used to wake the 927 system from the Suspend-to-RAM state. 928 929 The Intel Tunnel Creek processor has 5 GPIOs powered by the 930 core power rail and 9 from suspend power supply. 931 932 The Intel Centerton processor has a total of 30 GPIO pins. 933 Twenty-one are powered by the core power rail and 9 from the 934 suspend power supply. 935 936 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 937 power well and 6 from the suspend power well. 938 939config GPIO_SCH311X 940 tristate "SMSC SCH311x SuperI/O GPIO" 941 help 942 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 943 SCH3116 "Super I/O" chipsets. 944 945 To compile this driver as a module, choose M here: the module will 946 be called gpio-sch311x. 947 948config GPIO_TS5500 949 tristate "TS-5500 DIO blocks and compatibles" 950 depends on TS5500 || COMPILE_TEST 951 help 952 This driver supports Digital I/O exposed by pin blocks found on some 953 Technologic Systems platforms. It includes, but is not limited to, 3 954 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 955 LCD port. 956 957config GPIO_WINBOND 958 tristate "Winbond Super I/O GPIO support" 959 select ISA_BUS_API 960 help 961 This option enables support for GPIOs found on Winbond Super I/O 962 chips. 963 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 964 supported. 965 966 You will need to provide a module parameter "gpios", or a 967 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 968 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 969 970 To compile this driver as a module, choose M here: the module will 971 be called gpio-winbond. 972 973config GPIO_WS16C48 974 tristate "WinSystems WS16C48 GPIO support" 975 select ISA_BUS_API 976 select GPIOLIB_IRQCHIP 977 help 978 Enables GPIO support for the WinSystems WS16C48. The base port 979 addresses for the devices may be configured via the base module 980 parameter. The interrupt line numbers for the devices may be 981 configured via the irq module parameter. 982 983endmenu 984 985menu "I2C GPIO expanders" 986 depends on I2C 987 988config GPIO_ADP5588 989 tristate "ADP5588 I2C GPIO expander" 990 help 991 This option enables support for 18 GPIOs found 992 on Analog Devices ADP5588 GPIO Expanders. 993 994config GPIO_ADP5588_IRQ 995 bool "Interrupt controller support for ADP5588" 996 depends on GPIO_ADP5588=y 997 select GPIOLIB_IRQCHIP 998 help 999 Say yes here to enable the adp5588 to be used as an interrupt 1000 controller. It requires the driver to be built in the kernel. 1001 1002config GPIO_ADNP 1003 tristate "Avionic Design N-bit GPIO expander" 1004 depends on OF_GPIO 1005 select GPIOLIB_IRQCHIP 1006 help 1007 This option enables support for N GPIOs found on Avionic Design 1008 I2C GPIO expanders. The register space will be extended by powers 1009 of two, so the controller will need to accommodate for that. For 1010 example: if a controller provides 48 pins, 6 registers will be 1011 enough to represent all pins, but the driver will assume a 1012 register layout for 64 pins (8 registers). 1013 1014config GPIO_GW_PLD 1015 tristate "Gateworks PLD GPIO Expander" 1016 depends on OF_GPIO 1017 help 1018 Say yes here to provide access to the Gateworks I2C PLD GPIO 1019 Expander. This is used at least on the Cambria GW2358-4. 1020 1021config GPIO_MAX7300 1022 tristate "Maxim MAX7300 GPIO expander" 1023 select GPIO_MAX730X 1024 help 1025 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1026 1027config GPIO_MAX732X 1028 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1029 help 1030 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1031 Port Expanders. Each IO port on these chips has a fixed role of 1032 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1033 Input and Output (designed by 'P'). The combinations are listed 1034 below: 1035 1036 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1037 max7322 (4I4O), max7323 (4P4O) 1038 1039 16 bits: max7324 (8I8O), max7325 (8P8O), 1040 max7326 (4I12O), max7327 (4P12O) 1041 1042 Board setup code must specify the model to use, and the start 1043 number for these GPIOs. 1044 1045config GPIO_MAX732X_IRQ 1046 bool "Interrupt controller support for MAX732x" 1047 depends on GPIO_MAX732X=y 1048 select GPIOLIB_IRQCHIP 1049 help 1050 Say yes here to enable the max732x to be used as an interrupt 1051 controller. It requires the driver to be built in the kernel. 1052 1053config GPIO_PCA953X 1054 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1055 select REGMAP_I2C 1056 help 1057 Say yes here to provide access to several register-oriented 1058 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1059 models include: 1060 1061 4 bits: pca9536, pca9537 1062 1063 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1064 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1065 1066 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1067 tca6416 1068 1069 24 bits: tca6424 1070 1071 40 bits: pca9505, pca9698 1072 1073config GPIO_PCA953X_IRQ 1074 bool "Interrupt controller support for PCA953x" 1075 depends on GPIO_PCA953X 1076 select GPIOLIB_IRQCHIP 1077 help 1078 Say yes here to enable the pca953x to be used as an interrupt 1079 controller. 1080 1081config GPIO_PCA9570 1082 tristate "PCA9570 4-Bit I2C GPO expander" 1083 help 1084 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1085 1086 To compile this driver as a module, choose M here: the module will 1087 be called gpio-pca9570. 1088 1089config GPIO_PCF857X 1090 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1091 select GPIOLIB_IRQCHIP 1092 select IRQ_DOMAIN 1093 help 1094 Say yes here to provide access to most "quasi-bidirectional" I2C 1095 GPIO expanders used for additional digital outputs or inputs. 1096 Most of these parts are from NXP, though TI is a second source for 1097 some of them. Compatible models include: 1098 1099 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1100 pca9670, pca9672, pca9674, pca9674a, 1101 max7328, max7329 1102 1103 16 bits: pcf8575, pcf8575c, pca8575, 1104 pca9671, pca9673, pca9675 1105 1106 Your board setup code will need to declare the expanders in 1107 use, and assign numbers to the GPIOs they expose. Those GPIOs 1108 can then be used from drivers and other kernel code, just like 1109 other GPIOs, but only accessible from task contexts. 1110 1111 This driver provides an in-kernel interface to those GPIOs using 1112 platform-neutral GPIO calls. 1113 1114config GPIO_TPIC2810 1115 tristate "TPIC2810 8-Bit I2C GPO expander" 1116 help 1117 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1118 1119 To compile this driver as a module, choose M here: the module will 1120 be called gpio-tpic2810. 1121 1122config GPIO_TS4900 1123 tristate "Technologic Systems FPGA I2C GPIO" 1124 depends on SOC_IMX6 || COMPILE_TEST 1125 select REGMAP_I2C 1126 help 1127 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1128 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1129 1130endmenu 1131 1132menu "MFD GPIO expanders" 1133 1134config GPIO_ADP5520 1135 tristate "GPIO Support for ADP5520 PMIC" 1136 depends on PMIC_ADP5520 1137 help 1138 This option enables support for on-chip GPIO found 1139 on Analog Devices ADP5520 PMICs. 1140 1141config GPIO_ALTERA_A10SR 1142 tristate "Altera Arria10 System Resource GPIO" 1143 depends on MFD_ALTERA_A10SR 1144 help 1145 Driver for Arria10 Development Kit GPIO expansion which 1146 includes reads of pushbuttons and DIP switches as well 1147 as writes to LEDs. 1148 1149config GPIO_ARIZONA 1150 tristate "Wolfson Microelectronics Arizona class devices" 1151 depends on MFD_ARIZONA 1152 help 1153 Support for GPIOs on Wolfson Arizona class devices. 1154 1155config GPIO_BD71815 1156 tristate "ROHM BD71815 PMIC GPIO support" 1157 depends on MFD_ROHM_BD71828 1158 help 1159 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1160 available on the ROHM PMIC. 1161 1162 This driver can also be built as a module. If so, the module 1163 will be called gpio-bd71815. 1164 1165config GPIO_BD71828 1166 tristate "ROHM BD71828 GPIO support" 1167 depends on MFD_ROHM_BD71828 1168 help 1169 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1170 available on the ROHM PMIC in total. The GPIOs are limited to 1171 outputs only and pins must be configured to GPIO outputs by 1172 OTP. Enable this only if you want to use these pins as outputs. 1173 1174 This driver can also be built as a module. If so, the module 1175 will be called gpio-bd71828. 1176 1177config GPIO_BD9571MWV 1178 tristate "ROHM BD9571 GPIO support" 1179 depends on MFD_BD9571MWV 1180 help 1181 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1182 available on the ROHM PMIC in total, both of which can also 1183 generate interrupts. 1184 1185 This driver can also be built as a module. If so, the module 1186 will be called gpio-bd9571mwv. 1187 1188config GPIO_CRYSTAL_COVE 1189 tristate "GPIO support for Crystal Cove PMIC" 1190 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1191 select GPIOLIB_IRQCHIP 1192 help 1193 Support for GPIO pins on Crystal Cove PMIC. 1194 1195 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1196 inside. 1197 1198 This driver can also be built as a module. If so, the module will be 1199 called gpio-crystalcove. 1200 1201config GPIO_CS5535 1202 tristate "AMD CS5535/CS5536 GPIO support" 1203 depends on X86 || MIPS || COMPILE_TEST 1204 depends on MFD_CS5535 1205 help 1206 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1207 can be used for quite a number of things. The CS5535/6 is found on 1208 AMD Geode and Lemote Yeeloong devices. 1209 1210 If unsure, say N. 1211 1212config GPIO_DA9052 1213 tristate "Dialog DA9052 GPIO" 1214 depends on PMIC_DA9052 1215 help 1216 Say yes here to enable the GPIO driver for the DA9052 chip. 1217 1218config GPIO_DA9055 1219 tristate "Dialog Semiconductor DA9055 GPIO" 1220 depends on MFD_DA9055 1221 help 1222 Say yes here to enable the GPIO driver for the DA9055 chip. 1223 1224 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1225 be controlled by this driver. 1226 1227 If driver is built as a module it will be called gpio-da9055. 1228 1229config GPIO_DLN2 1230 tristate "Diolan DLN2 GPIO support" 1231 depends on MFD_DLN2 1232 select GPIOLIB_IRQCHIP 1233 1234 help 1235 Select this option to enable GPIO driver for the Diolan DLN2 1236 board. 1237 1238 This driver can also be built as a module. If so, the module 1239 will be called gpio-dln2. 1240 1241config HTC_EGPIO 1242 bool "HTC EGPIO support" 1243 depends on ARM 1244 help 1245 This driver supports the CPLD egpio chip present on 1246 several HTC phones. It provides basic support for input 1247 pins, output pins, and IRQs. 1248 1249config GPIO_JANZ_TTL 1250 tristate "Janz VMOD-TTL Digital IO Module" 1251 depends on MFD_JANZ_CMODIO 1252 help 1253 This enables support for the Janz VMOD-TTL Digital IO module. 1254 This driver provides support for driving the pins in output 1255 mode only. Input mode is not supported. 1256 1257config GPIO_KEMPLD 1258 tristate "Kontron ETX / COMexpress GPIO" 1259 depends on MFD_KEMPLD 1260 help 1261 This enables support for the PLD GPIO interface on some Kontron ETX 1262 and COMexpress (ETXexpress) modules. 1263 1264 This driver can also be built as a module. If so, the module will be 1265 called gpio-kempld. 1266 1267config GPIO_LP3943 1268 tristate "TI/National Semiconductor LP3943 GPIO expander" 1269 depends on MFD_LP3943 1270 help 1271 GPIO driver for LP3943 MFD. 1272 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1273 Open drain outputs are required for this usage. 1274 1275config GPIO_LP873X 1276 tristate "TI LP873X GPO" 1277 depends on MFD_TI_LP873X 1278 help 1279 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1280 on LP873X PMICs. 1281 1282 This driver can also be built as a module. If so, the module will be 1283 called gpio-lp873x. 1284 1285config GPIO_LP87565 1286 tristate "TI LP87565 GPIO" 1287 depends on MFD_TI_LP87565 1288 help 1289 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1290 on LP87565 PMICs. 1291 1292 This driver can also be built as a module. If so, the module will be 1293 called gpio-lp87565. 1294 1295config GPIO_MADERA 1296 tristate "Cirrus Logic Madera class codecs" 1297 depends on PINCTRL_MADERA 1298 help 1299 Support for GPIOs on Cirrus Logic Madera class codecs. 1300 1301config GPIO_MAX77620 1302 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1303 depends on MFD_MAX77620 1304 select GPIOLIB_IRQCHIP 1305 help 1306 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1307 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1308 driver also provides interrupt support for each of the GPIOs. 1309 Say yes here to enable the max77620 to be used as GPIO controller. 1310 1311config GPIO_MAX77650 1312 tristate "Maxim MAX77650/77651 GPIO support" 1313 depends on MFD_MAX77650 1314 help 1315 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1316 These chips have a single pin that can be configured as GPIO. 1317 1318config GPIO_PALMAS 1319 bool "TI PALMAS series PMICs GPIO" 1320 depends on MFD_PALMAS 1321 help 1322 Select this option to enable GPIO driver for the TI PALMAS 1323 series chip family. 1324 1325config GPIO_RC5T583 1326 bool "RICOH RC5T583 GPIO" 1327 depends on MFD_RC5T583 1328 help 1329 Select this option to enable GPIO driver for the Ricoh RC5T583 1330 chip family. 1331 This driver provides the support for driving/reading the GPIO pins 1332 of RC5T583 device through standard GPIO library. 1333 1334config GPIO_SL28CPLD 1335 tristate "Kontron sl28cpld GPIO support" 1336 depends on MFD_SL28CPLD || COMPILE_TEST 1337 select GPIO_REGMAP 1338 select GPIOLIB_IRQCHIP 1339 select REGMAP_IRQ 1340 help 1341 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1342 1343 This driver can also be built as a module. If so, the module will be 1344 called gpio-sl28cpld. 1345 1346config GPIO_STMPE 1347 bool "STMPE GPIOs" 1348 depends on MFD_STMPE 1349 depends on OF_GPIO 1350 select GPIOLIB_IRQCHIP 1351 help 1352 This enables support for the GPIOs found on the STMPE I/O 1353 Expanders. 1354 1355config GPIO_TC3589X 1356 bool "TC3589X GPIOs" 1357 depends on MFD_TC3589X 1358 depends on OF_GPIO 1359 select GPIOLIB_IRQCHIP 1360 help 1361 This enables support for the GPIOs found on the TC3589X 1362 I/O Expander. 1363 1364config GPIO_TIMBERDALE 1365 bool "Support for timberdale GPIO IP" 1366 depends on MFD_TIMBERDALE 1367 help 1368 Add support for the GPIO IP in the timberdale FPGA. 1369 1370config GPIO_TN48M_CPLD 1371 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1372 depends on MFD_TN48M_CPLD 1373 select GPIO_REGMAP 1374 help 1375 This enables support for the GPIOs found on the Delta 1376 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1377 they are input-only or output-only type. 1378 1379 This driver can also be built as a module. If so, the 1380 module will be called gpio-tn48m. 1381 1382config GPIO_TPS65086 1383 tristate "TI TPS65086 GPO" 1384 depends on MFD_TPS65086 1385 help 1386 This driver supports the GPO on TI TPS65086x PMICs. 1387 1388config GPIO_TPS65218 1389 tristate "TPS65218 GPIO" 1390 depends on MFD_TPS65218 1391 help 1392 Select this option to enable GPIO driver for the TPS65218 1393 chip family. 1394 1395config GPIO_TPS6586X 1396 bool "TPS6586X GPIO" 1397 depends on MFD_TPS6586X 1398 help 1399 Select this option to enable GPIO driver for the TPS6586X 1400 chip family. 1401 1402config GPIO_TPS65910 1403 bool "TPS65910 GPIO" 1404 depends on MFD_TPS65910 1405 help 1406 Select this option to enable GPIO driver for the TPS65910 1407 chip family. 1408 1409config GPIO_TPS65912 1410 tristate "TI TPS65912 GPIO" 1411 depends on MFD_TPS65912 1412 help 1413 This driver supports TPS65912 GPIO chip. 1414 1415config GPIO_TPS68470 1416 tristate "TPS68470 GPIO" 1417 depends on INTEL_SKL_INT3472 1418 help 1419 Select this option to enable GPIO driver for the TPS68470 1420 chip family. 1421 There are 7 GPIOs and few sensor-related GPIOs supported 1422 by the TPS68470. While the 7 GPIOs can be configured as 1423 input or output as appropriate, the sensor related GPIOs 1424 are "output only" GPIOs. 1425 1426config GPIO_TQMX86 1427 tristate "TQ-Systems QTMX86 GPIO" 1428 depends on MFD_TQMX86 || COMPILE_TEST 1429 depends on HAS_IOPORT_MAP 1430 select GPIOLIB_IRQCHIP 1431 help 1432 This driver supports GPIO on the TQMX86 IO controller. 1433 1434config GPIO_TWL4030 1435 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1436 depends on TWL4030_CORE 1437 help 1438 Say yes here to access the GPIO signals of various multi-function 1439 power management chips from Texas Instruments. 1440 1441config GPIO_TWL6040 1442 tristate "TWL6040 GPO" 1443 depends on TWL6040_CORE 1444 help 1445 Say yes here to access the GPO signals of twl6040 1446 audio chip from Texas Instruments. 1447 1448config GPIO_UCB1400 1449 tristate "Philips UCB1400 GPIO" 1450 depends on UCB1400_CORE 1451 help 1452 This enables support for the Philips UCB1400 GPIO pins. 1453 The UCB1400 is an AC97 audio codec. 1454 1455config GPIO_WHISKEY_COVE 1456 tristate "GPIO support for Whiskey Cove PMIC" 1457 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1458 select GPIOLIB_IRQCHIP 1459 help 1460 Support for GPIO pins on Whiskey Cove PMIC. 1461 1462 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1463 inside. 1464 1465 This driver can also be built as a module. If so, the module will be 1466 called gpio-wcove. 1467 1468config GPIO_WM831X 1469 tristate "WM831x GPIOs" 1470 depends on MFD_WM831X 1471 help 1472 Say yes here to access the GPIO signals of WM831x power management 1473 chips from Wolfson Microelectronics. 1474 1475config GPIO_WM8350 1476 tristate "WM8350 GPIOs" 1477 depends on MFD_WM8350 1478 help 1479 Say yes here to access the GPIO signals of WM8350 power management 1480 chips from Wolfson Microelectronics. 1481 1482config GPIO_WM8994 1483 tristate "WM8994 GPIOs" 1484 depends on MFD_WM8994 1485 help 1486 Say yes here to access the GPIO signals of WM8994 audio hub 1487 CODECs from Wolfson Microelectronics. 1488 1489endmenu 1490 1491menu "PCI GPIO expanders" 1492 depends on PCI 1493 1494config GPIO_AMD8111 1495 tristate "AMD 8111 GPIO driver" 1496 depends on X86 || COMPILE_TEST 1497 depends on HAS_IOPORT_MAP 1498 help 1499 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1500 1501 Note that usually system firmware/ACPI handles GPIO pins on their 1502 own and users might easily break their systems with uncareful usage 1503 of this driver! 1504 1505 If unsure, say N 1506 1507config GPIO_BT8XX 1508 tristate "BT8XX GPIO abuser" 1509 depends on VIDEO_BT848=n 1510 help 1511 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1512 as a cheap PCI GPIO card. 1513 1514 This chip can be found on Miro, Hauppauge and STB TV-cards. 1515 1516 The card needs to be physically altered for using it as a 1517 GPIO card. For more information on how to build a GPIO card 1518 from a BT8xx TV card, see the documentation file at 1519 Documentation/driver-api/gpio/bt8xxgpio.rst 1520 1521 If unsure, say N. 1522 1523config GPIO_MERRIFIELD 1524 tristate "Intel Merrifield GPIO support" 1525 depends on X86_INTEL_MID 1526 select GPIOLIB_IRQCHIP 1527 help 1528 Say Y here to support Intel Merrifield GPIO. 1529 1530config GPIO_MLXBF 1531 tristate "Mellanox BlueField SoC GPIO" 1532 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1533 select GPIO_GENERIC 1534 help 1535 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1536 1537config GPIO_MLXBF2 1538 tristate "Mellanox BlueField 2 SoC GPIO" 1539 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1540 select GPIO_GENERIC 1541 help 1542 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1543 1544config GPIO_ML_IOH 1545 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1546 depends on X86 || COMPILE_TEST 1547 select GENERIC_IRQ_CHIP 1548 help 1549 ML7213 is companion chip for Intel Atom E6xx series. 1550 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1551 Hub) which is for IVI (In-Vehicle Infotainment) use. 1552 This driver can access the IOH's GPIO device. 1553 1554config GPIO_PCH 1555 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1556 depends on X86_32 || MIPS || COMPILE_TEST 1557 select GENERIC_IRQ_CHIP 1558 help 1559 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1560 which is an IOH (Input/Output Hub) for x86 embedded processor. 1561 This driver can access PCH GPIO device. 1562 1563 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1564 Output Hub), ML7223 and ML7831. 1565 ML7223 IOH is for MP (Media Phone) use. 1566 ML7831 IOH is for general purpose use. 1567 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1568 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1569 1570config GPIO_PCI_IDIO_16 1571 tristate "ACCES PCI-IDIO-16 GPIO support" 1572 select GPIOLIB_IRQCHIP 1573 help 1574 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1575 generated when any of the inputs change state (low to high or high to 1576 low). Input filter control is not supported by this driver, and the 1577 input filters are deactivated by this driver. 1578 1579config GPIO_PCIE_IDIO_24 1580 tristate "ACCES PCIe-IDIO-24 GPIO support" 1581 select GPIOLIB_IRQCHIP 1582 help 1583 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1584 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1585 when any of the inputs change state (low to high or high to low). 1586 Input filter control is not supported by this driver, and the input 1587 filters are deactivated by this driver. 1588 1589config GPIO_RDC321X 1590 tristate "RDC R-321x GPIO support" 1591 select MFD_CORE 1592 select MFD_RDC321X 1593 help 1594 Support for the RDC R321x SoC GPIOs over southbridge 1595 PCI configuration space. 1596 1597config GPIO_SODAVILLE 1598 bool "Intel Sodaville GPIO support" 1599 depends on X86 && OF 1600 select GPIO_GENERIC 1601 select GENERIC_IRQ_CHIP 1602 help 1603 Say Y here to support Intel Sodaville GPIO. 1604 1605endmenu 1606 1607menu "SPI GPIO expanders" 1608 depends on SPI_MASTER 1609 1610config GPIO_74X164 1611 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1612 depends on OF_GPIO 1613 help 1614 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1615 shift registers. This driver can be used to provide access 1616 to more GPIO outputs. 1617 1618config GPIO_MAX3191X 1619 tristate "Maxim MAX3191x industrial serializer" 1620 select CRC8 1621 help 1622 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1623 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1624 chip to make 8 digital 24V inputs available via SPI. Supports 1625 CRC checksums to guard against electromagnetic interference, 1626 as well as undervoltage and overtemperature detection. 1627 1628config GPIO_MAX7301 1629 tristate "Maxim MAX7301 GPIO expander" 1630 select GPIO_MAX730X 1631 help 1632 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1633 1634config GPIO_MC33880 1635 tristate "Freescale MC33880 high-side/low-side switch" 1636 help 1637 SPI driver for Freescale MC33880 high-side/low-side switch. 1638 This provides GPIO interface supporting inputs and outputs. 1639 1640config GPIO_PISOSR 1641 tristate "Generic parallel-in/serial-out shift register" 1642 help 1643 GPIO driver for SPI compatible parallel-in/serial-out shift 1644 registers. These are input only devices. 1645 1646config GPIO_XRA1403 1647 tristate "EXAR XRA1403 16-bit GPIO expander" 1648 select REGMAP_SPI 1649 help 1650 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1651 1652config GPIO_MOXTET 1653 tristate "Turris Mox Moxtet bus GPIO expander" 1654 depends on MOXTET 1655 help 1656 Say yes here if you are building for the Turris Mox router. 1657 This is the driver needed for configuring the GPIOs via the Moxtet 1658 bus. For example the Mox module with SFP cage needs this driver 1659 so that phylink can use corresponding GPIOs. 1660 1661endmenu 1662 1663menu "USB GPIO expanders" 1664 depends on USB 1665 1666config GPIO_VIPERBOARD 1667 tristate "Viperboard GPIO a & b support" 1668 depends on MFD_VIPERBOARD 1669 help 1670 Say yes here to access the GPIO signals of Nano River 1671 Technologies Viperboard. There are two GPIO chips on the 1672 board: gpioa and gpiob. 1673 See viperboard API specification and Nano 1674 River Tech's viperboard.h for detailed meaning 1675 of the module parameters. 1676 1677endmenu 1678 1679menu "Virtual GPIO drivers" 1680 1681config GPIO_AGGREGATOR 1682 tristate "GPIO Aggregator" 1683 help 1684 Say yes here to enable the GPIO Aggregator, which provides a way to 1685 aggregate existing GPIO lines into a new virtual GPIO chip. 1686 This can serve the following purposes: 1687 - Assign permissions for a collection of GPIO lines to a user, 1688 - Export a collection of GPIO lines to a virtual machine, 1689 - Provide a generic driver for a GPIO-operated device in an 1690 industrial control context, to be operated from userspace using 1691 the GPIO chardev interface. 1692 1693config GPIO_MOCKUP 1694 tristate "GPIO Testing Driver" 1695 select IRQ_SIM 1696 help 1697 This enables GPIO Testing driver, which provides a way to test GPIO 1698 subsystem through sysfs (or char device) and debugfs. 1699 User could use it through the script in 1700 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1701 it. 1702 1703config GPIO_VIRTIO 1704 tristate "VirtIO GPIO support" 1705 depends on VIRTIO 1706 select GPIOLIB_IRQCHIP 1707 help 1708 Say Y here to enable guest support for virtio-based GPIO controllers. 1709 1710 These virtual GPIOs can be routed to real GPIOs or attached to 1711 simulators on the host (like QEMU). 1712 1713config GPIO_SIM 1714 tristate "GPIO Simulator Module" 1715 select IRQ_SIM 1716 select CONFIGFS_FS 1717 help 1718 This enables the GPIO simulator - a configfs-based GPIO testing 1719 driver. 1720 1721endmenu 1722 1723endif 1724