1# SPDX-License-Identifier: GPL-2.0-only 2# 3# GPIO infrastructure and drivers 4# 5 6menuconfig GPIOLIB 7 bool "GPIO Support" 8 help 9 This enables GPIO support through the generic GPIO library. 10 You only need to enable this if you also want to enable 11 one or more of the GPIO drivers below. 12 13 If unsure, say N. 14 15if GPIOLIB 16 17config GPIOLIB_FASTPATH_LIMIT 18 int "Maximum number of GPIOs for fast path" 19 range 32 512 20 default 512 21 help 22 This adjusts the point at which certain APIs will switch from 23 using a stack allocated buffer to a dynamically allocated buffer. 24 25 You shouldn't need to change this unless you really need to 26 optimize either stack space or performance. Change this carefully 27 since setting an incorrect value could cause stack corruption. 28 29config OF_GPIO 30 def_bool y 31 depends on OF 32 depends on HAS_IOMEM 33 34config GPIO_ACPI 35 def_bool y 36 depends on ACPI 37 38config GPIOLIB_IRQCHIP 39 select IRQ_DOMAIN 40 bool 41 42config OF_GPIO_MM_GPIOCHIP 43 bool 44 help 45 This adds support for the legacy 'struct of_mm_gpio_chip' interface 46 from PowerPC. Existing drivers using this interface need to select 47 this symbol, but new drivers should use the generic gpio-regmap 48 infrastructure instead. 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 select 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 112config GPIO_IDIO_16 113 tristate 114 select REGMAP_IRQ 115 select GPIOLIB_IRQCHIP 116 select GPIO_REGMAP 117 help 118 Enables support for the idio-16 library functions. The idio-16 library 119 provides functions to facilitate communication with devices within the 120 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16. 121 122 If built as a module its name will be gpio-idio-16. 123 124menu "Memory mapped GPIO drivers" 125 depends on HAS_IOMEM 126 127config GPIO_74XX_MMIO 128 tristate "GPIO driver for 74xx-ICs with MMIO access" 129 depends on OF_GPIO 130 select GPIO_GENERIC 131 help 132 Say yes here to support GPIO functionality for 74xx-compatible ICs 133 with MMIO access. Compatible models include: 134 1 bit: 741G125 (Input), 741G74 (Output) 135 2 bits: 742G125 (Input), 7474 (Output) 136 4 bits: 74125 (Input), 74175 (Output) 137 6 bits: 74365 (Input), 74174 (Output) 138 8 bits: 74244 (Input), 74273 (Output) 139 16 bits: 741624 (Input), 7416374 (Output) 140 141config GPIO_ALTERA 142 tristate "Altera GPIO" 143 depends on OF_GPIO 144 select GPIOLIB_IRQCHIP 145 select OF_GPIO_MM_GPIOCHIP 146 help 147 Say Y or M here to build support for the Altera PIO device. 148 149 If driver is built as a module it will be called gpio-altera. 150 151config GPIO_AMDPT 152 tristate "AMD Promontory GPIO support" 153 depends on ACPI 154 select GPIO_GENERIC 155 help 156 Driver for GPIO functionality on Promontory IOHub. 157 Requires ACPI ASL code to enumerate as a platform device. 158 159config GPIO_ASPEED 160 tristate "Aspeed GPIO support" 161 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 162 select GPIOLIB_IRQCHIP 163 help 164 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 165 166config GPIO_ASPEED_SGPIO 167 bool "Aspeed SGPIO support" 168 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 169 select GPIO_GENERIC 170 select GPIOLIB_IRQCHIP 171 help 172 Say Y here to support Aspeed AST2500 SGPIO functionality. 173 174config GPIO_ATH79 175 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 176 default y if ATH79 177 depends on ATH79 || COMPILE_TEST 178 select GPIO_GENERIC 179 select GPIOLIB_IRQCHIP 180 help 181 Select this option to enable GPIO driver for 182 Atheros AR71XX/AR724X/AR913X SoC devices. 183 184config GPIO_RASPBERRYPI_EXP 185 tristate "Raspberry Pi 3 GPIO Expander" 186 default RASPBERRYPI_FIRMWARE 187 depends on OF_GPIO 188 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 189 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 190 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 191 help 192 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 193 the firmware mailbox to communicate with VideoCore on BCM283x chips. 194 195config GPIO_BCM_KONA 196 bool "Broadcom Kona GPIO" 197 depends on ARCH_BCM_MOBILE || COMPILE_TEST 198 help 199 Turn on GPIO support for Broadcom "Kona" chips. 200 201config GPIO_BCM_XGS_IPROC 202 tristate "BRCM XGS iProc GPIO support" 203 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 204 select GPIO_GENERIC 205 select GPIOLIB_IRQCHIP 206 default ARCH_BCM_IPROC 207 help 208 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 209 210config GPIO_BRCMSTB 211 tristate "BRCMSTB GPIO support" 212 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 213 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 214 select GPIO_GENERIC 215 select IRQ_DOMAIN 216 help 217 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 218 219config GPIO_CADENCE 220 tristate "Cadence GPIO support" 221 depends on OF_GPIO 222 select GPIO_GENERIC 223 select GPIOLIB_IRQCHIP 224 help 225 Say yes here to enable support for Cadence GPIO controller. 226 227config GPIO_CLPS711X 228 tristate "CLPS711X GPIO support" 229 depends on ARCH_CLPS711X || COMPILE_TEST 230 select GPIO_GENERIC 231 help 232 Say yes here to support GPIO on CLPS711X SoCs. 233 234config GPIO_DAVINCI 235 tristate "TI Davinci/Keystone GPIO support" 236 default y if ARCH_DAVINCI 237 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 238 help 239 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 240 241config GPIO_DWAPB 242 tristate "Synopsys DesignWare APB GPIO driver" 243 select GPIO_GENERIC 244 select GPIOLIB_IRQCHIP 245 help 246 Say Y or M here to build support for the Synopsys DesignWare APB 247 GPIO block. 248 249config GPIO_EIC_SPRD 250 tristate "Spreadtrum EIC support" 251 depends on ARCH_SPRD || COMPILE_TEST 252 depends on OF_GPIO 253 select GPIOLIB_IRQCHIP 254 help 255 Say yes here to support Spreadtrum EIC device. 256 257config GPIO_EM 258 tristate "Emma Mobile GPIO" 259 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 260 help 261 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 262 263config GPIO_EN7523 264 tristate "Airoha GPIO support" 265 depends on ARCH_AIROHA 266 default ARCH_AIROHA 267 select GPIO_GENERIC 268 select GPIOLIB_IRQCHIP 269 help 270 Say Y or M here to support the GPIO controller block on the 271 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 272 273config GPIO_EP93XX 274 def_bool y 275 depends on ARCH_EP93XX 276 select GPIO_GENERIC 277 select GPIOLIB_IRQCHIP 278 279config GPIO_EXAR 280 tristate "Support for GPIO pins on XR17V352/354/358" 281 depends on SERIAL_8250_EXAR 282 select REGMAP_MMIO 283 help 284 Selecting this option will enable handling of GPIO pins present 285 on Exar XR17V352/354/358 chips. 286 287config GPIO_GE_FPGA 288 bool "GE FPGA based GPIO" 289 depends on GE_FPGA || COMPILE_TEST 290 select GPIO_GENERIC 291 help 292 Support for common GPIO functionality provided on some GE Single Board 293 Computers. 294 295 This driver provides basic support (configure as input or output, read 296 and write pin state) for GPIO implemented in a number of GE single 297 board computers. 298 299config GPIO_FTGPIO010 300 bool "Faraday FTGPIO010 GPIO" 301 depends on OF_GPIO 302 select GPIO_GENERIC 303 select GPIOLIB_IRQCHIP 304 default (ARCH_GEMINI || ARCH_MOXART) 305 help 306 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 307 Cortina systems Gemini platforms, Moxa ART and others. 308 309config GPIO_GENERIC_PLATFORM 310 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 311 select GPIO_GENERIC 312 help 313 Say yes here to support basic platform_device memory-mapped GPIO controllers. 314 315config GPIO_GRGPIO 316 tristate "Aeroflex Gaisler GRGPIO support" 317 depends on OF_GPIO 318 select GPIO_GENERIC 319 select IRQ_DOMAIN 320 help 321 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 322 VHDL IP core library. 323 324config GPIO_HISI 325 tristate "HiSilicon GPIO controller driver" 326 depends on ARM64 || COMPILE_TEST 327 select GPIO_GENERIC 328 select GPIOLIB_IRQCHIP 329 help 330 Say Y or M here to build support for the HiSilicon GPIO controller 331 driver GPIO block. 332 This GPIO controller supports double-edge interrupt and multi-core 333 concurrent access. 334 335config GPIO_HLWD 336 tristate "Nintendo Wii (Hollywood) GPIO" 337 depends on OF_GPIO 338 select GPIO_GENERIC 339 select GPIOLIB_IRQCHIP 340 help 341 Select this to support the GPIO controller of the Nintendo Wii. 342 343 If unsure, say N. 344 345config GPIO_ICH 346 tristate "Intel ICH GPIO" 347 depends on X86 348 depends on LPC_ICH 349 help 350 Say yes here to support the GPIO functionality of a number of Intel 351 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 352 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 353 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 354 355 If unsure, say N. 356 357config GPIO_IMX_SCU 358 def_bool y 359 depends on IMX_SCU 360 361config GPIO_IXP4XX 362 bool "Intel IXP4xx GPIO" 363 depends on ARCH_IXP4XX 364 depends on OF 365 select GPIO_GENERIC 366 select GPIOLIB_IRQCHIP 367 select IRQ_DOMAIN_HIERARCHY 368 help 369 Say yes here to support the GPIO functionality of a number of Intel 370 IXP4xx series of chips. 371 372 If unsure, say N. 373 374config GPIO_LOGICVC 375 tristate "Xylon LogiCVC GPIO support" 376 depends on MFD_SYSCON && OF 377 help 378 Say yes here to support GPIO functionality of the Xylon LogiCVC 379 programmable logic block. 380 381config GPIO_LOONGSON 382 bool "Loongson-2/3 GPIO support" 383 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 384 help 385 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 386 387config GPIO_LOONGSON_64BIT 388 tristate "Loongson 64 bit GPIO support" 389 depends on LOONGARCH || COMPILE_TEST 390 depends on OF_GPIO 391 select GPIO_GENERIC 392 help 393 Say yes here to support the GPIO functionality of a number of 394 Loongson series of chips. The Loongson GPIO controller supports 395 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and 396 the remaining 56 are reused with other functions, with edge or 397 level triggered interrupts. 398 399config GPIO_LPC18XX 400 tristate "NXP LPC18XX/43XX GPIO support" 401 default y if ARCH_LPC18XX 402 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 403 select IRQ_DOMAIN_HIERARCHY 404 help 405 Select this option to enable GPIO driver for 406 NXP LPC18XX/43XX devices. 407 408config GPIO_LPC32XX 409 tristate "NXP LPC32XX GPIO support" 410 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 411 help 412 Select this option to enable GPIO driver for 413 NXP LPC32XX devices. 414 415config GPIO_MB86S7X 416 tristate "GPIO support for Fujitsu MB86S7x Platforms" 417 help 418 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 419 420config GPIO_MENZ127 421 tristate "MEN 16Z127 GPIO support" 422 depends on MCB 423 select GPIO_GENERIC 424 help 425 Say yes here to support the MEN 16Z127 GPIO Controller. 426 427config GPIO_MM_LANTIQ 428 bool "Lantiq Memory mapped GPIOs" 429 depends on LANTIQ && SOC_XWAY 430 select OF_GPIO_MM_GPIOCHIP 431 help 432 This enables support for memory mapped GPIOs on the External Bus Unit 433 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 434 created by attaching a 16-bit latch to the bus. 435 436config GPIO_MPC5200 437 def_bool y 438 depends on PPC_MPC52xx 439 select OF_GPIO_MM_GPIOCHIP 440 441config GPIO_MPC8XXX 442 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 443 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 444 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 445 COMPILE_TEST 446 select GPIO_GENERIC 447 select IRQ_DOMAIN 448 help 449 Say Y here if you're going to use hardware that connects to the 450 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 451 452config GPIO_MT7621 453 bool "Mediatek MT7621 GPIO Support" 454 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 455 depends on OF_GPIO 456 select GPIO_GENERIC 457 select GPIOLIB_IRQCHIP 458 help 459 Say yes here to support the Mediatek MT7621 SoC GPIO device. 460 461config GPIO_MVEBU 462 def_bool y 463 depends on PLAT_ORION || ARCH_MVEBU 464 depends on OF_GPIO 465 select GENERIC_IRQ_CHIP 466 select REGMAP_MMIO 467 468config GPIO_MXC 469 tristate "i.MX GPIO support" 470 depends on ARCH_MXC || COMPILE_TEST 471 select GPIO_GENERIC 472 select GENERIC_IRQ_CHIP 473 474config GPIO_MXS 475 bool "Freescale MXS GPIO support" if COMPILE_TEST 476 depends on ARCH_MXS || COMPILE_TEST 477 default y if ARCH_MXS 478 select GPIO_GENERIC 479 select GENERIC_IRQ_CHIP 480 481config GPIO_NPCM_SGPIO 482 bool "Nuvoton SGPIO support" 483 depends on ARCH_NPCM || COMPILE_TEST 484 select GPIOLIB_IRQCHIP 485 help 486 Say Y here to support Nuvoton NPCM7XX/NPCM8XX SGPIO functionality. 487 488config GPIO_OCTEON 489 tristate "Cavium OCTEON GPIO" 490 depends on CAVIUM_OCTEON_SOC 491 default y 492 help 493 Say yes here to support the on-chip GPIO lines on the OCTEON 494 family of SOCs. 495 496config GPIO_OMAP 497 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 498 default y if ARCH_OMAP 499 depends on ARM 500 select GENERIC_IRQ_CHIP 501 select GPIOLIB_IRQCHIP 502 help 503 Say yes here to enable GPIO support for TI OMAP SoCs. 504 505config GPIO_PL061 506 tristate "PrimeCell PL061 GPIO support" 507 depends on ARM_AMBA 508 select IRQ_DOMAIN 509 select GPIOLIB_IRQCHIP 510 help 511 Say yes here to support the PrimeCell PL061 GPIO device. 512 513config GPIO_PXA 514 bool "PXA GPIO support" 515 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 516 help 517 Say yes here to support the PXA GPIO device. 518 519config GPIO_RCAR 520 tristate "Renesas R-Car and RZ/G GPIO support" 521 depends on ARCH_RENESAS || COMPILE_TEST 522 select GPIOLIB_IRQCHIP 523 help 524 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 525 526config GPIO_RDA 527 bool "RDA Micro GPIO controller support" 528 depends on ARCH_RDA || COMPILE_TEST 529 depends on OF_GPIO 530 select GPIO_GENERIC 531 select GPIOLIB_IRQCHIP 532 help 533 Say Y here to support RDA Micro GPIO controller. 534 535config GPIO_REALTEK_OTTO 536 tristate "Realtek Otto GPIO support" 537 depends on MACH_REALTEK_RTL 538 default MACH_REALTEK_RTL 539 select GPIO_GENERIC 540 select GPIOLIB_IRQCHIP 541 help 542 The GPIO controller on the Otto MIPS platform supports up to two 543 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 544 are grouped in four 8-bit wide ports. 545 546 When built as a module, the module will be called realtek_otto_gpio. 547 548config GPIO_REG 549 bool 550 help 551 A 32-bit single register GPIO fixed in/out implementation. This 552 can be used to represent any register as a set of GPIO signals. 553 554config GPIO_ROCKCHIP 555 tristate "Rockchip GPIO support" 556 depends on ARCH_ROCKCHIP || COMPILE_TEST 557 select GENERIC_IRQ_CHIP 558 select GPIOLIB_IRQCHIP 559 default ARCH_ROCKCHIP 560 help 561 Say yes here to support GPIO on Rockchip SoCs. 562 563config GPIO_SAMA5D2_PIOBU 564 tristate "SAMA5D2 PIOBU GPIO support" 565 depends on MFD_SYSCON 566 depends on OF_GPIO 567 depends on ARCH_AT91 || COMPILE_TEST 568 select GPIO_SYSCON 569 help 570 Say yes here to use the PIOBU pins as GPIOs. 571 572 PIOBU pins on the SAMA5D2 can be used as GPIOs. 573 The difference from regular GPIOs is that they 574 maintain their value during backup/self-refresh. 575 576config GPIO_SIFIVE 577 tristate "SiFive GPIO support" 578 depends on OF_GPIO 579 select IRQ_DOMAIN_HIERARCHY 580 select GPIO_GENERIC 581 select GPIOLIB_IRQCHIP 582 select REGMAP_MMIO 583 help 584 Say yes here to support the GPIO device on SiFive SoCs. 585 586config GPIO_SIOX 587 tristate "SIOX GPIO support" 588 depends on SIOX 589 select GPIOLIB_IRQCHIP 590 help 591 Say yes here to support SIOX I/O devices. These are units connected 592 via a SIOX bus and have a number of fixed-direction I/O lines. 593 594config GPIO_SNPS_CREG 595 bool "Synopsys GPIO via CREG (Control REGisters) driver" 596 depends on ARC || COMPILE_TEST 597 depends on OF_GPIO 598 help 599 This driver supports GPIOs via CREG on various Synopsys SoCs. 600 This is a single-register MMIO GPIO driver for complex cases 601 where only several fields in register belong to GPIO lines and 602 each GPIO line owns a field with different length and on/off value. 603 604config GPIO_SPEAR_SPICS 605 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 606 depends on PLAT_SPEAR 607 select GENERIC_IRQ_CHIP 608 help 609 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 610 611config GPIO_SPRD 612 tristate "Spreadtrum GPIO support" 613 depends on ARCH_SPRD || COMPILE_TEST 614 depends on OF_GPIO 615 select GPIOLIB_IRQCHIP 616 help 617 Say yes here to support Spreadtrum GPIO device. 618 619config GPIO_STP_XWAY 620 bool "XWAY STP GPIOs" 621 depends on SOC_XWAY || COMPILE_TEST 622 depends on OF_GPIO 623 help 624 This enables support for the Serial To Parallel (STP) unit found on 625 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 626 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 627 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 628 phy status. 629 630config GPIO_SYSCON 631 tristate "GPIO based on SYSCON" 632 depends on MFD_SYSCON && OF 633 help 634 Say yes here to support GPIO functionality though SYSCON driver. 635 636config GPIO_TANGIER 637 tristate 638 select GPIOLIB_IRQCHIP 639 help 640 GPIO support for Intel Tangier and compatible platforms. 641 Currently supported: 642 - Elkhart Lake 643 - Merrifield 644 645 If built as a module its name will be gpio-tangier. 646 647config GPIO_TB10X 648 bool 649 select GPIO_GENERIC 650 select GENERIC_IRQ_CHIP 651 select OF_GPIO 652 653config GPIO_TEGRA 654 tristate "NVIDIA Tegra GPIO support" 655 default ARCH_TEGRA 656 depends on ARCH_TEGRA || COMPILE_TEST 657 depends on OF_GPIO 658 select GPIOLIB_IRQCHIP 659 select IRQ_DOMAIN_HIERARCHY 660 help 661 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 662 663config GPIO_TEGRA186 664 tristate "NVIDIA Tegra186 GPIO support" 665 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 666 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 667 depends on OF_GPIO 668 select GPIOLIB_IRQCHIP 669 select IRQ_DOMAIN_HIERARCHY 670 help 671 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 672 673config GPIO_TS4800 674 tristate "TS-4800 DIO blocks and compatibles" 675 depends on OF_GPIO 676 depends on SOC_IMX51 || COMPILE_TEST 677 select GPIO_GENERIC 678 help 679 This driver support TS-4800 FPGA GPIO controllers. 680 681config GPIO_THUNDERX 682 tristate "Cavium ThunderX/OCTEON-TX GPIO" 683 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 684 depends on PCI_MSI 685 select GPIOLIB_IRQCHIP 686 select IRQ_DOMAIN_HIERARCHY 687 select IRQ_FASTEOI_HIERARCHY_HANDLERS 688 help 689 Say yes here to support the on-chip GPIO lines on the ThunderX 690 and OCTEON-TX families of SoCs. 691 692config GPIO_UNIPHIER 693 tristate "UniPhier GPIO support" 694 depends on ARCH_UNIPHIER || COMPILE_TEST 695 depends on OF_GPIO 696 select IRQ_DOMAIN_HIERARCHY 697 help 698 Say yes here to support UniPhier GPIOs. 699 700config GPIO_VF610 701 bool "VF610 GPIO support" 702 default y if SOC_VF610 703 depends on ARCH_MXC 704 select GPIOLIB_IRQCHIP 705 help 706 Say yes here to support i.MX or Vybrid vf610 GPIOs. 707 708config GPIO_VISCONTI 709 tristate "Toshiba Visconti GPIO support" 710 depends on ARCH_VISCONTI || COMPILE_TEST 711 depends on OF_GPIO 712 select GPIOLIB_IRQCHIP 713 select GPIO_GENERIC 714 select IRQ_DOMAIN_HIERARCHY 715 help 716 Say yes here to support GPIO on Tohisba Visconti. 717 718config GPIO_WCD934X 719 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 720 depends on MFD_WCD934X && OF_GPIO 721 help 722 This driver is to support GPIO block found on the Qualcomm Technologies 723 Inc WCD9340/WCD9341 Audio Codec. 724 725config GPIO_XGENE 726 bool "APM X-Gene GPIO controller support" 727 depends on ARM64 && OF_GPIO 728 help 729 This driver is to support the GPIO block within the APM X-Gene SoC 730 platform's generic flash controller. The GPIO pins are muxed with 731 the generic flash controller's address and data pins. Say yes 732 here to enable the GFC GPIO functionality. 733 734config GPIO_XGENE_SB 735 tristate "APM X-Gene GPIO standby controller support" 736 depends on (ARCH_XGENE || COMPILE_TEST) 737 select GPIO_GENERIC 738 select GPIOLIB_IRQCHIP 739 select IRQ_DOMAIN_HIERARCHY 740 help 741 This driver supports the GPIO block within the APM X-Gene 742 Standby Domain. Say yes here to enable the GPIO functionality. 743 744config GPIO_XILINX 745 tristate "Xilinx GPIO support" 746 select GPIOLIB_IRQCHIP 747 depends on OF_GPIO 748 help 749 Say yes here to support the Xilinx FPGA GPIO device. 750 751config GPIO_XLP 752 tristate "Cavium ThunderX2 GPIO support" 753 depends on ARCH_THUNDER2 || COMPILE_TEST 754 select GPIOLIB_IRQCHIP 755 help 756 This driver provides support for GPIO interface on Cavium's ThunderX2 757 CN99XX SoCs (Originally from Netlogic XLP). 758 759 If unsure, say N. 760 761config GPIO_XTENSA 762 bool "Xtensa GPIO32 support" 763 depends on XTENSA 764 depends on HAVE_XTENSA_GPIO32 765 depends on !SMP 766 help 767 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 768 and EXPSTATE (output) ports. 769 770config GPIO_ZEVIO 771 bool "LSI ZEVIO SoC memory mapped GPIOs" 772 depends on ARM 773 help 774 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 775 776config GPIO_ZYNQ 777 tristate "Xilinx Zynq GPIO support" 778 depends on ARCH_ZYNQ || ARCH_ZYNQMP 779 select GPIOLIB_IRQCHIP 780 help 781 Say yes here to support Xilinx Zynq GPIO controller. 782 783config GPIO_ZYNQMP_MODEPIN 784 tristate "ZynqMP ps-mode pin GPIO configuration driver" 785 depends on ZYNQMP_FIRMWARE 786 default ZYNQMP_FIRMWARE 787 help 788 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 789 driver. 790 791 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 792 is 4-bits boot mode pins. It sets and gets the status of 793 the ps-mode pin. Every pin can be configured as input/output. 794 795config GPIO_LOONGSON1 796 tristate "Loongson1 GPIO support" 797 depends on MACH_LOONGSON32 798 select GPIO_GENERIC 799 help 800 Say Y or M here to support GPIO on Loongson1 SoCs. 801 802config GPIO_AMD_FCH 803 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 804 help 805 This option enables driver for GPIO on AMD's Fusion Controller Hub, 806 as found on G-series SOCs (e.g. GX-412TC). 807 808 Note: This driver doesn't register itself automatically, as it 809 needs to be provided with platform-specific configuration. 810 (See e.g. CONFIG_PCENGINES_APU2.) 811 812config GPIO_MSC313 813 bool "MStar MSC313 GPIO support" 814 depends on ARCH_MSTARV7 815 default ARCH_MSTARV7 816 select GPIOLIB_IRQCHIP 817 select IRQ_DOMAIN_HIERARCHY 818 help 819 Say Y here to support the main GPIO block on MStar/SigmaStar 820 ARMv7-based SoCs. 821 822config GPIO_IDT3243X 823 tristate "IDT 79RC3243X GPIO support" 824 depends on MIKROTIK_RB532 || COMPILE_TEST 825 select GPIO_GENERIC 826 select GPIOLIB_IRQCHIP 827 help 828 Select this option to enable GPIO driver for 829 IDT 79RC3243X-based devices like Mikrotik RB532. 830 831 To compile this driver as a module, choose M here: the module will 832 be called gpio-idt3243x. 833 834endmenu 835 836menu "Port-mapped I/O GPIO drivers" 837 depends on X86 && HAS_IOPORT # I/O space access 838 839config GPIO_VX855 840 tristate "VIA VX855/VX875 GPIO" 841 depends on PCI 842 select MFD_CORE 843 select MFD_VX855 844 help 845 Support access to the VX855/VX875 GPIO lines through the GPIO library. 846 847 This driver provides common support for accessing the device. 848 Additional drivers must be enabled in order to use the 849 functionality of the device. 850 851config GPIO_I8255 852 tristate 853 select GPIO_REGMAP 854 help 855 Enables support for the i8255 interface library functions. The i8255 856 interface library provides functions to facilitate communication with 857 interfaces compatible with the venerable Intel 8255 Programmable 858 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 859 in the early 1970s but compatible interfaces are nowadays typically 860 found embedded in larger VLSI processing chips and FPGA components. 861 862 If built as a module its name will be gpio-i8255. 863 864config GPIO_104_DIO_48E 865 tristate "ACCES 104-DIO-48E GPIO support" 866 depends on PC104 867 select ISA_BUS_API 868 select REGMAP_MMIO 869 select REGMAP_IRQ 870 select GPIOLIB_IRQCHIP 871 select GPIO_I8255 872 select I8254 873 help 874 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 875 104-DIO-24E). The base port addresses for the devices may be 876 configured via the base module parameter. The interrupt line numbers 877 for the devices may be configured via the irq module parameter. 878 879config GPIO_104_IDIO_16 880 tristate "ACCES 104-IDIO-16 GPIO support" 881 depends on PC104 882 select ISA_BUS_API 883 select REGMAP_MMIO 884 select GPIO_IDIO_16 885 help 886 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 887 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 888 base port addresses for the devices may be configured via the base 889 module parameter. The interrupt line numbers for the devices may be 890 configured via the irq module parameter. 891 892config GPIO_104_IDI_48 893 tristate "ACCES 104-IDI-48 GPIO support" 894 depends on PC104 895 select ISA_BUS_API 896 select REGMAP_MMIO 897 select REGMAP_IRQ 898 select GPIOLIB_IRQCHIP 899 select GPIO_REGMAP 900 help 901 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 902 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 903 the devices may be configured via the base module parameter. The 904 interrupt line numbers for the devices may be configured via the irq 905 module parameter. 906 907config GPIO_F7188X 908 tristate "Fintek and Nuvoton Super-I/O GPIO support" 909 help 910 This option enables support for GPIOs found on Fintek Super-I/O 911 chips F71869, F71869A, F71882FG, F71889F and F81866. 912 As well as Nuvoton Super-I/O chip NCT6126D. 913 914 To compile this driver as a module, choose M here: the module will 915 be called f7188x-gpio. 916 917config GPIO_GPIO_MM 918 tristate "Diamond Systems GPIO-MM GPIO support" 919 depends on PC104 920 select ISA_BUS_API 921 select REGMAP_MMIO 922 select GPIO_I8255 923 help 924 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 925 926 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 927 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 928 support for these 48 channels of digital I/O. 929 930 The base port addresses for the devices may be configured via the base 931 array module parameter. 932 933config GPIO_IT87 934 tristate "IT87xx GPIO support" 935 help 936 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 937 938 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 939 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 940 well. 941 942 To compile this driver as a module, choose M here: the module will 943 be called gpio_it87. 944 945config GPIO_SCH 946 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 947 depends on (X86 || COMPILE_TEST) && ACPI 948 depends on LPC_SCH 949 select GPIOLIB_IRQCHIP 950 help 951 Say yes here to support GPIO interface on Intel Poulsbo SCH, 952 Intel Tunnel Creek processor, Intel Centerton processor or 953 Intel Quark X1000 SoC. 954 955 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 956 powered by the core power rail and are turned off during sleep 957 modes (S3 and higher). The remaining four GPIOs are powered by 958 the Intel SCH suspend power supply. These GPIOs remain 959 active during S3. The suspend-powered GPIOs can be used to wake the 960 system from the Suspend-to-RAM state. 961 962 The Intel Tunnel Creek processor has 5 GPIOs powered by the 963 core power rail and 9 from suspend power supply. 964 965 The Intel Centerton processor has a total of 30 GPIO pins. 966 Twenty-one are powered by the core power rail and 9 from the 967 suspend power supply. 968 969 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 970 power well and 6 from the suspend power well. 971 972config GPIO_SCH311X 973 tristate "SMSC SCH311x SuperI/O GPIO" 974 help 975 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 976 SCH3116 "Super I/O" chipsets. 977 978 To compile this driver as a module, choose M here: the module will 979 be called gpio-sch311x. 980 981config GPIO_TS5500 982 tristate "TS-5500 DIO blocks and compatibles" 983 depends on TS5500 || COMPILE_TEST 984 help 985 This driver supports Digital I/O exposed by pin blocks found on some 986 Technologic Systems platforms. It includes, but is not limited to, 3 987 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 988 LCD port. 989 990config GPIO_WINBOND 991 tristate "Winbond Super I/O GPIO support" 992 select ISA_BUS_API 993 help 994 This option enables support for GPIOs found on Winbond Super I/O 995 chips. 996 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 997 supported. 998 999 You will need to provide a module parameter "gpios", or a 1000 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 1001 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 1002 1003 To compile this driver as a module, choose M here: the module will 1004 be called gpio-winbond. 1005 1006config GPIO_WS16C48 1007 tristate "WinSystems WS16C48 GPIO support" 1008 select ISA_BUS_API 1009 select REGMAP_IRQ 1010 select REGMAP_MMIO 1011 select GPIOLIB_IRQCHIP 1012 select GPIO_REGMAP 1013 help 1014 Enables GPIO support for the WinSystems WS16C48. The base port 1015 addresses for the devices may be configured via the base module 1016 parameter. The interrupt line numbers for the devices may be 1017 configured via the irq module parameter. 1018 1019endmenu 1020 1021menu "I2C GPIO expanders" 1022 depends on I2C 1023 1024config GPIO_ADNP 1025 tristate "Avionic Design N-bit GPIO expander" 1026 depends on OF_GPIO 1027 select GPIOLIB_IRQCHIP 1028 help 1029 This option enables support for N GPIOs found on Avionic Design 1030 I2C GPIO expanders. The register space will be extended by powers 1031 of two, so the controller will need to accommodate for that. For 1032 example: if a controller provides 48 pins, 6 registers will be 1033 enough to represent all pins, but the driver will assume a 1034 register layout for 64 pins (8 registers). 1035 1036config GPIO_FXL6408 1037 tristate "FXL6408 I2C GPIO expander" 1038 select GPIO_REGMAP 1039 select REGMAP_I2C 1040 help 1041 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. 1042 1043 To compile this driver as a module, choose M here: the module will 1044 be called gpio-fxl6408. 1045 1046config GPIO_DS4520 1047 tristate "DS4520 I2C GPIO expander" 1048 select REGMAP_I2C 1049 select GPIO_REGMAP 1050 help 1051 GPIO driver for ADI DS4520 I2C-based GPIO expander. 1052 Say yes here to enable the GPIO driver for the ADI DS4520 chip. 1053 1054 To compile this driver as a module, choose M here: the module will 1055 be called gpio-ds4520. 1056 1057config GPIO_GW_PLD 1058 tristate "Gateworks PLD GPIO Expander" 1059 depends on OF_GPIO 1060 help 1061 Say yes here to provide access to the Gateworks I2C PLD GPIO 1062 Expander. This is used at least on the Cambria GW2358-4. 1063 1064config GPIO_MAX7300 1065 tristate "Maxim MAX7300 GPIO expander" 1066 select GPIO_MAX730X 1067 help 1068 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1069 1070config GPIO_MAX732X 1071 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1072 help 1073 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1074 Port Expanders. Each IO port on these chips has a fixed role of 1075 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1076 Input and Output (designed by 'P'). The combinations are listed 1077 below: 1078 1079 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1080 max7322 (4I4O), max7323 (4P4O) 1081 1082 16 bits: max7324 (8I8O), max7325 (8P8O), 1083 max7326 (4I12O), max7327 (4P12O) 1084 1085 Board setup code must specify the model to use, and the start 1086 number for these GPIOs. 1087 1088config GPIO_MAX732X_IRQ 1089 bool "Interrupt controller support for MAX732x" 1090 depends on GPIO_MAX732X=y 1091 select GPIOLIB_IRQCHIP 1092 help 1093 Say yes here to enable the max732x to be used as an interrupt 1094 controller. It requires the driver to be built in the kernel. 1095 1096config GPIO_PCA953X 1097 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1098 select REGMAP_I2C 1099 help 1100 Say yes here to provide access to several register-oriented 1101 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1102 models include: 1103 1104 4 bits: pca9536, pca9537 1105 1106 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1107 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1108 1109 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1110 tca6416 1111 1112 24 bits: tca6424 1113 1114 40 bits: pca9505, pca9698 1115 1116config GPIO_PCA953X_IRQ 1117 bool "Interrupt controller support for PCA953x" 1118 depends on GPIO_PCA953X 1119 select GPIOLIB_IRQCHIP 1120 help 1121 Say yes here to enable the pca953x to be used as an interrupt 1122 controller. 1123 1124config GPIO_PCA9570 1125 tristate "PCA9570 4-Bit I2C GPO expander" 1126 help 1127 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1128 1129 To compile this driver as a module, choose M here: the module will 1130 be called gpio-pca9570. 1131 1132config GPIO_PCF857X 1133 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1134 select GPIOLIB_IRQCHIP 1135 select IRQ_DOMAIN 1136 help 1137 Say yes here to provide access to most "quasi-bidirectional" I2C 1138 GPIO expanders used for additional digital outputs or inputs. 1139 Most of these parts are from NXP, though TI is a second source for 1140 some of them. Compatible models include: 1141 1142 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1143 pca9670, pca9672, pca9674, pca9674a, 1144 max7328, max7329 1145 1146 16 bits: pcf8575, pcf8575c, pca8575, 1147 pca9671, pca9673, pca9675 1148 1149 Your board setup code will need to declare the expanders in 1150 use, and assign numbers to the GPIOs they expose. Those GPIOs 1151 can then be used from drivers and other kernel code, just like 1152 other GPIOs, but only accessible from task contexts. 1153 1154 This driver provides an in-kernel interface to those GPIOs using 1155 platform-neutral GPIO calls. 1156 1157config GPIO_TPIC2810 1158 tristate "TPIC2810 8-Bit I2C GPO expander" 1159 help 1160 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1161 1162 To compile this driver as a module, choose M here: the module will 1163 be called gpio-tpic2810. 1164 1165config GPIO_TS4900 1166 tristate "Technologic Systems FPGA I2C GPIO" 1167 depends on SOC_IMX6 || COMPILE_TEST 1168 select REGMAP_I2C 1169 help 1170 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1171 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1172 1173endmenu 1174 1175menu "MFD GPIO expanders" 1176 1177config GPIO_ADP5520 1178 tristate "GPIO Support for ADP5520 PMIC" 1179 depends on PMIC_ADP5520 1180 help 1181 This option enables support for on-chip GPIO found 1182 on Analog Devices ADP5520 PMICs. 1183 1184config GPIO_ALTERA_A10SR 1185 tristate "Altera Arria10 System Resource GPIO" 1186 depends on MFD_ALTERA_A10SR 1187 help 1188 Driver for Arria10 Development Kit GPIO expansion which 1189 includes reads of pushbuttons and DIP switches as well 1190 as writes to LEDs. 1191 1192config GPIO_ARIZONA 1193 tristate "Wolfson Microelectronics Arizona class devices" 1194 depends on MFD_ARIZONA 1195 help 1196 Support for GPIOs on Wolfson Arizona class devices. 1197 1198config GPIO_BD71815 1199 tristate "ROHM BD71815 PMIC GPIO support" 1200 depends on MFD_ROHM_BD71828 1201 help 1202 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1203 available on the ROHM PMIC. 1204 1205 This driver can also be built as a module. If so, the module 1206 will be called gpio-bd71815. 1207 1208config GPIO_BD71828 1209 tristate "ROHM BD71828 GPIO support" 1210 depends on MFD_ROHM_BD71828 1211 help 1212 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1213 available on the ROHM PMIC in total. The GPIOs are limited to 1214 outputs only and pins must be configured to GPIO outputs by 1215 OTP. Enable this only if you want to use these pins as outputs. 1216 1217 This driver can also be built as a module. If so, the module 1218 will be called gpio-bd71828. 1219 1220config GPIO_BD9571MWV 1221 tristate "ROHM BD9571 GPIO support" 1222 depends on MFD_BD9571MWV 1223 help 1224 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1225 available on the ROHM PMIC in total, both of which can also 1226 generate interrupts. 1227 1228 This driver can also be built as a module. If so, the module 1229 will be called gpio-bd9571mwv. 1230 1231config GPIO_CRYSTAL_COVE 1232 tristate "GPIO support for Crystal Cove PMIC" 1233 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1234 select GPIOLIB_IRQCHIP 1235 help 1236 Support for GPIO pins on Crystal Cove PMIC. 1237 1238 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1239 inside. 1240 1241 This driver can also be built as a module. If so, the module will be 1242 called gpio-crystalcove. 1243 1244config GPIO_CS5535 1245 tristate "AMD CS5535/CS5536 GPIO support" 1246 depends on X86 || MIPS || COMPILE_TEST 1247 depends on MFD_CS5535 1248 help 1249 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1250 can be used for quite a number of things. The CS5535/6 is found on 1251 AMD Geode and Lemote Yeeloong devices. 1252 1253 If unsure, say N. 1254 1255config GPIO_DA9052 1256 tristate "Dialog DA9052 GPIO" 1257 depends on PMIC_DA9052 1258 help 1259 Say yes here to enable the GPIO driver for the DA9052 chip. 1260 1261config GPIO_DA9055 1262 tristate "Dialog Semiconductor DA9055 GPIO" 1263 depends on MFD_DA9055 1264 help 1265 Say yes here to enable the GPIO driver for the DA9055 chip. 1266 1267 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1268 be controlled by this driver. 1269 1270 If driver is built as a module it will be called gpio-da9055. 1271 1272config GPIO_DLN2 1273 tristate "Diolan DLN2 GPIO support" 1274 depends on MFD_DLN2 1275 select GPIOLIB_IRQCHIP 1276 1277 help 1278 Select this option to enable GPIO driver for the Diolan DLN2 1279 board. 1280 1281 This driver can also be built as a module. If so, the module 1282 will be called gpio-dln2. 1283 1284config HTC_EGPIO 1285 bool "HTC EGPIO support" 1286 depends on ARM 1287 help 1288 This driver supports the CPLD egpio chip present on 1289 several HTC phones. It provides basic support for input 1290 pins, output pins, and IRQs. 1291 1292config GPIO_ELKHARTLAKE 1293 tristate "Intel Elkhart Lake PSE GPIO support" 1294 depends on X86 || COMPILE_TEST 1295 select GPIO_TANGIER 1296 help 1297 Select this option to enable GPIO support for Intel Elkhart Lake 1298 PSE GPIO IP. 1299 1300 To compile this driver as a module, choose M here: the module will 1301 be called gpio-elkhartlake. 1302 1303config GPIO_JANZ_TTL 1304 tristate "Janz VMOD-TTL Digital IO Module" 1305 depends on MFD_JANZ_CMODIO 1306 help 1307 This enables support for the Janz VMOD-TTL Digital IO module. 1308 This driver provides support for driving the pins in output 1309 mode only. Input mode is not supported. 1310 1311config GPIO_KEMPLD 1312 tristate "Kontron ETX / COMexpress GPIO" 1313 depends on MFD_KEMPLD 1314 help 1315 This enables support for the PLD GPIO interface on some Kontron ETX 1316 and COMexpress (ETXexpress) modules. 1317 1318 This driver can also be built as a module. If so, the module will be 1319 called gpio-kempld. 1320 1321config GPIO_LJCA 1322 tristate "INTEL La Jolla Cove Adapter GPIO support" 1323 depends on MFD_LJCA 1324 select GPIOLIB_IRQCHIP 1325 default MFD_LJCA 1326 help 1327 Select this option to enable GPIO driver for the INTEL 1328 La Jolla Cove Adapter (LJCA) board. 1329 1330 This driver can also be built as a module. If so, the module 1331 will be called gpio-ljca. 1332 1333config GPIO_LP3943 1334 tristate "TI/National Semiconductor LP3943 GPIO expander" 1335 depends on MFD_LP3943 1336 help 1337 GPIO driver for LP3943 MFD. 1338 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1339 Open drain outputs are required for this usage. 1340 1341config GPIO_LP873X 1342 tristate "TI LP873X GPO" 1343 depends on MFD_TI_LP873X 1344 help 1345 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1346 on LP873X PMICs. 1347 1348 This driver can also be built as a module. If so, the module will be 1349 called gpio-lp873x. 1350 1351config GPIO_LP87565 1352 tristate "TI LP87565 GPIO" 1353 depends on MFD_TI_LP87565 1354 help 1355 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1356 on LP87565 PMICs. 1357 1358 This driver can also be built as a module. If so, the module will be 1359 called gpio-lp87565. 1360 1361config GPIO_MADERA 1362 tristate "Cirrus Logic Madera class codecs" 1363 depends on PINCTRL_MADERA 1364 help 1365 Support for GPIOs on Cirrus Logic Madera class codecs. 1366 1367config GPIO_MAX77620 1368 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1369 depends on MFD_MAX77620 1370 select GPIOLIB_IRQCHIP 1371 help 1372 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1373 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1374 driver also provides interrupt support for each of the GPIOs. 1375 Say yes here to enable the max77620 to be used as GPIO controller. 1376 1377config GPIO_MAX77650 1378 tristate "Maxim MAX77650/77651 GPIO support" 1379 depends on MFD_MAX77650 1380 help 1381 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1382 These chips have a single pin that can be configured as GPIO. 1383 1384config GPIO_PALMAS 1385 bool "TI PALMAS series PMICs GPIO" 1386 depends on MFD_PALMAS 1387 help 1388 Select this option to enable GPIO driver for the TI PALMAS 1389 series chip family. 1390 1391config GPIO_PMIC_EIC_SPRD 1392 tristate "Spreadtrum PMIC EIC support" 1393 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1394 depends on OF_GPIO 1395 select GPIOLIB_IRQCHIP 1396 help 1397 Say yes here to support Spreadtrum PMIC EIC device. 1398 1399config GPIO_RC5T583 1400 bool "RICOH RC5T583 GPIO" 1401 depends on MFD_RC5T583 1402 help 1403 Select this option to enable GPIO driver for the Ricoh RC5T583 1404 chip family. 1405 This driver provides the support for driving/reading the GPIO pins 1406 of RC5T583 device through standard GPIO library. 1407 1408config GPIO_SL28CPLD 1409 tristate "Kontron sl28cpld GPIO support" 1410 depends on MFD_SL28CPLD || COMPILE_TEST 1411 select GPIO_REGMAP 1412 select GPIOLIB_IRQCHIP 1413 select REGMAP_IRQ 1414 help 1415 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1416 1417 This driver can also be built as a module. If so, the module will be 1418 called gpio-sl28cpld. 1419 1420config GPIO_STMPE 1421 bool "STMPE GPIOs" 1422 depends on MFD_STMPE 1423 depends on OF_GPIO 1424 select GPIOLIB_IRQCHIP 1425 help 1426 This enables support for the GPIOs found on the STMPE I/O 1427 Expanders. 1428 1429config GPIO_TC3589X 1430 bool "TC3589X GPIOs" 1431 depends on MFD_TC3589X 1432 depends on OF_GPIO 1433 select GPIOLIB_IRQCHIP 1434 help 1435 This enables support for the GPIOs found on the TC3589X 1436 I/O Expander. 1437 1438config GPIO_TIMBERDALE 1439 bool "Support for timberdale GPIO IP" 1440 depends on MFD_TIMBERDALE 1441 help 1442 Add support for the GPIO IP in the timberdale FPGA. 1443 1444config GPIO_TN48M_CPLD 1445 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1446 depends on MFD_TN48M_CPLD 1447 select GPIO_REGMAP 1448 help 1449 This enables support for the GPIOs found on the Delta 1450 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1451 they are input-only or output-only type. 1452 1453 This driver can also be built as a module. If so, the 1454 module will be called gpio-tn48m. 1455 1456config GPIO_TPS65086 1457 tristate "TI TPS65086 GPO" 1458 depends on MFD_TPS65086 1459 help 1460 This driver supports the GPO on TI TPS65086x PMICs. 1461 1462config GPIO_TPS65218 1463 tristate "TPS65218 GPIO" 1464 depends on MFD_TPS65218 1465 help 1466 Select this option to enable GPIO driver for the TPS65218 1467 chip family. 1468 1469config GPIO_TPS65219 1470 tristate "TPS65219 GPIO" 1471 depends on MFD_TPS65219 1472 default MFD_TPS65219 1473 help 1474 Select this option to enable GPIO driver for the TPS65219 chip 1475 family. 1476 GPIO0 is statically configured as either input or output prior to 1477 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting 1478 is statically configured by NVM. GPIO0 can't be used as a generic 1479 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when 1480 MULTI_DEVICE_EN=1. 1481 1482 This driver can also be built as a module. If so, the module will be 1483 called gpio_tps65219. 1484 1485config GPIO_TPS6586X 1486 bool "TPS6586X GPIO" 1487 depends on MFD_TPS6586X 1488 help 1489 Select this option to enable GPIO driver for the TPS6586X 1490 chip family. 1491 1492config GPIO_TPS65910 1493 bool "TPS65910 GPIO" 1494 depends on MFD_TPS65910 1495 help 1496 Select this option to enable GPIO driver for the TPS65910 1497 chip family. 1498 1499config GPIO_TPS65912 1500 tristate "TI TPS65912 GPIO" 1501 depends on MFD_TPS65912 1502 help 1503 This driver supports TPS65912 GPIO chip. 1504 1505config GPIO_TPS68470 1506 tristate "TPS68470 GPIO" 1507 depends on INTEL_SKL_INT3472 1508 help 1509 Select this option to enable GPIO driver for the TPS68470 1510 chip family. 1511 There are 7 GPIOs and few sensor-related GPIOs supported 1512 by the TPS68470. While the 7 GPIOs can be configured as 1513 input or output as appropriate, the sensor related GPIOs 1514 are "output only" GPIOs. 1515 1516config GPIO_TQMX86 1517 tristate "TQ-Systems TQMx86 GPIO" 1518 depends on MFD_TQMX86 || COMPILE_TEST 1519 depends on HAS_IOPORT_MAP 1520 select GPIOLIB_IRQCHIP 1521 help 1522 This driver supports GPIO on the TQMX86 IO controller. 1523 1524config GPIO_TWL4030 1525 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1526 depends on TWL4030_CORE 1527 help 1528 Say yes here to access the GPIO signals of various multi-function 1529 power management chips from Texas Instruments. 1530 1531config GPIO_TWL6040 1532 tristate "TWL6040 GPO" 1533 depends on TWL6040_CORE 1534 help 1535 Say yes here to access the GPO signals of twl6040 1536 audio chip from Texas Instruments. 1537 1538config GPIO_WHISKEY_COVE 1539 tristate "GPIO support for Whiskey Cove PMIC" 1540 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1541 select GPIOLIB_IRQCHIP 1542 help 1543 Support for GPIO pins on Whiskey Cove PMIC. 1544 1545 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1546 inside. 1547 1548 This driver can also be built as a module. If so, the module will be 1549 called gpio-wcove. 1550 1551config GPIO_WM831X 1552 tristate "WM831x GPIOs" 1553 depends on MFD_WM831X 1554 help 1555 Say yes here to access the GPIO signals of WM831x power management 1556 chips from Wolfson Microelectronics. 1557 1558config GPIO_WM8350 1559 tristate "WM8350 GPIOs" 1560 depends on MFD_WM8350 1561 help 1562 Say yes here to access the GPIO signals of WM8350 power management 1563 chips from Wolfson Microelectronics. 1564 1565config GPIO_WM8994 1566 tristate "WM8994 GPIOs" 1567 depends on MFD_WM8994 1568 help 1569 Say yes here to access the GPIO signals of WM8994 audio hub 1570 CODECs from Wolfson Microelectronics. 1571 1572endmenu 1573 1574menu "PCI GPIO expanders" 1575 depends on PCI 1576 1577config GPIO_AMD8111 1578 tristate "AMD 8111 GPIO driver" 1579 depends on X86 || COMPILE_TEST 1580 depends on HAS_IOPORT_MAP 1581 help 1582 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1583 1584 Note that usually system firmware/ACPI handles GPIO pins on their 1585 own and users might easily break their systems with uncareful usage 1586 of this driver! 1587 1588 If unsure, say N 1589 1590config GPIO_BT8XX 1591 tristate "BT8XX GPIO abuser" 1592 depends on VIDEO_BT848=n 1593 help 1594 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1595 as a cheap PCI GPIO card. 1596 1597 This chip can be found on Miro, Hauppauge and STB TV-cards. 1598 1599 The card needs to be physically altered for using it as a 1600 GPIO card. For more information on how to build a GPIO card 1601 from a BT8xx TV card, see the documentation file at 1602 Documentation/driver-api/gpio/bt8xxgpio.rst 1603 1604 If unsure, say N. 1605 1606config GPIO_MERRIFIELD 1607 tristate "Intel Merrifield GPIO support" 1608 depends on X86_INTEL_MID 1609 select GPIO_TANGIER 1610 help 1611 Say Y here to support Intel Merrifield GPIO. 1612 1613config GPIO_MLXBF 1614 tristate "Mellanox BlueField SoC GPIO" 1615 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1616 select GPIO_GENERIC 1617 help 1618 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1619 1620config GPIO_MLXBF2 1621 tristate "Mellanox BlueField 2 SoC GPIO" 1622 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1623 select GPIO_GENERIC 1624 select GPIOLIB_IRQCHIP 1625 help 1626 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1627 1628config GPIO_MLXBF3 1629 tristate "Mellanox BlueField 3 SoC GPIO" 1630 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST 1631 select GPIO_GENERIC 1632 select GPIOLIB_IRQCHIP 1633 help 1634 Say Y if you want GPIO support on Mellanox BlueField 3 SoC. 1635 This GPIO controller supports interrupt handling and enables the 1636 manipulation of certain GPIO pins. 1637 This controller should be used in parallel with pinctrl-mlxbf3 to 1638 control the desired GPIOs. 1639 This driver can also be built as a module called mlxbf3-gpio. 1640 1641config GPIO_ML_IOH 1642 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1643 depends on X86 || COMPILE_TEST 1644 select GENERIC_IRQ_CHIP 1645 help 1646 ML7213 is companion chip for Intel Atom E6xx series. 1647 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1648 Hub) which is for IVI (In-Vehicle Infotainment) use. 1649 This driver can access the IOH's GPIO device. 1650 1651config GPIO_PCH 1652 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1653 depends on X86_32 || MIPS || COMPILE_TEST 1654 select GENERIC_IRQ_CHIP 1655 help 1656 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1657 which is an IOH (Input/Output Hub) for x86 embedded processor. 1658 This driver can access PCH GPIO device. 1659 1660 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1661 Output Hub), ML7223 and ML7831. 1662 ML7223 IOH is for MP (Media Phone) use. 1663 ML7831 IOH is for general purpose use. 1664 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1665 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1666 1667config GPIO_PCI_IDIO_16 1668 tristate "ACCES PCI-IDIO-16 GPIO support" 1669 select REGMAP_MMIO 1670 select GPIO_IDIO_16 1671 help 1672 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1673 generated when any of the inputs change state (low to high or high to 1674 low). Input filter control is not supported by this driver, and the 1675 input filters are deactivated by this driver. 1676 1677config GPIO_PCIE_IDIO_24 1678 tristate "ACCES PCIe-IDIO-24 GPIO support" 1679 select REGMAP_IRQ 1680 select REGMAP_MMIO 1681 select GPIOLIB_IRQCHIP 1682 select GPIO_REGMAP 1683 help 1684 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1685 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1686 when any of the inputs change state (low to high or high to low). 1687 Input filter control is not supported by this driver, and the input 1688 filters are deactivated by this driver. 1689 1690config GPIO_RDC321X 1691 tristate "RDC R-321x GPIO support" 1692 select MFD_CORE 1693 select MFD_RDC321X 1694 help 1695 Support for the RDC R321x SoC GPIOs over southbridge 1696 PCI configuration space. 1697 1698config GPIO_SODAVILLE 1699 bool "Intel Sodaville GPIO support" 1700 depends on X86 && OF 1701 select GPIO_GENERIC 1702 select GENERIC_IRQ_CHIP 1703 help 1704 Say Y here to support Intel Sodaville GPIO. 1705 1706endmenu 1707 1708menu "SPI GPIO expanders" 1709 depends on SPI_MASTER 1710 1711config GPIO_74X164 1712 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1713 depends on OF_GPIO 1714 help 1715 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1716 shift registers. This driver can be used to provide access 1717 to more GPIO outputs. 1718 1719config GPIO_MAX3191X 1720 tristate "Maxim MAX3191x industrial serializer" 1721 select CRC8 1722 help 1723 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1724 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1725 chip to make 8 digital 24V inputs available via SPI. Supports 1726 CRC checksums to guard against electromagnetic interference, 1727 as well as undervoltage and overtemperature detection. 1728 1729config GPIO_MAX7301 1730 tristate "Maxim MAX7301 GPIO expander" 1731 select GPIO_MAX730X 1732 help 1733 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1734 1735config GPIO_MC33880 1736 tristate "Freescale MC33880 high-side/low-side switch" 1737 help 1738 SPI driver for Freescale MC33880 high-side/low-side switch. 1739 This provides GPIO interface supporting inputs and outputs. 1740 1741config GPIO_PISOSR 1742 tristate "Generic parallel-in/serial-out shift register" 1743 help 1744 GPIO driver for SPI compatible parallel-in/serial-out shift 1745 registers. These are input only devices. 1746 1747config GPIO_XRA1403 1748 tristate "EXAR XRA1403 16-bit GPIO expander" 1749 select REGMAP_SPI 1750 help 1751 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1752 1753config GPIO_MOXTET 1754 tristate "Turris Mox Moxtet bus GPIO expander" 1755 depends on MOXTET 1756 help 1757 Say yes here if you are building for the Turris Mox router. 1758 This is the driver needed for configuring the GPIOs via the Moxtet 1759 bus. For example the Mox module with SFP cage needs this driver 1760 so that phylink can use corresponding GPIOs. 1761 1762endmenu 1763 1764menu "USB GPIO expanders" 1765 depends on USB 1766 1767config GPIO_VIPERBOARD 1768 tristate "Viperboard GPIO a & b support" 1769 depends on MFD_VIPERBOARD 1770 help 1771 Say yes here to access the GPIO signals of Nano River 1772 Technologies Viperboard. There are two GPIO chips on the 1773 board: gpioa and gpiob. 1774 See viperboard API specification and Nano 1775 River Tech's viperboard.h for detailed meaning 1776 of the module parameters. 1777 1778endmenu 1779 1780menu "Virtual GPIO drivers" 1781 1782config GPIO_AGGREGATOR 1783 tristate "GPIO Aggregator" 1784 help 1785 Say yes here to enable the GPIO Aggregator, which provides a way to 1786 aggregate existing GPIO lines into a new virtual GPIO chip. 1787 This can serve the following purposes: 1788 - Assign permissions for a collection of GPIO lines to a user, 1789 - Export a collection of GPIO lines to a virtual machine, 1790 - Provide a generic driver for a GPIO-operated device in an 1791 industrial control context, to be operated from userspace using 1792 the GPIO chardev interface. 1793 1794config GPIO_LATCH 1795 tristate "GPIO latch driver" 1796 help 1797 Say yes here to enable a driver for GPIO multiplexers based on latches 1798 connected to other GPIOs. 1799 1800config GPIO_MOCKUP 1801 tristate "GPIO Testing Driver" 1802 select IRQ_SIM 1803 help 1804 This enables GPIO Testing driver, which provides a way to test GPIO 1805 subsystem through sysfs (or char device) and debugfs. 1806 User could use it through the script in 1807 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1808 it. 1809 1810config GPIO_VIRTIO 1811 tristate "VirtIO GPIO support" 1812 depends on VIRTIO 1813 select GPIOLIB_IRQCHIP 1814 help 1815 Say Y here to enable guest support for virtio-based GPIO controllers. 1816 1817 These virtual GPIOs can be routed to real GPIOs or attached to 1818 simulators on the host (like QEMU). 1819 1820config GPIO_SIM 1821 tristate "GPIO Simulator Module" 1822 select IRQ_SIM 1823 select CONFIGFS_FS 1824 help 1825 This enables the GPIO simulator - a configfs-based GPIO testing 1826 driver. 1827 1828endmenu 1829 1830endif 1831