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_RTD 564 tristate "Realtek DHC GPIO support" 565 depends on ARCH_REALTEK 566 default y 567 select GPIOLIB_IRQCHIP 568 help 569 This option enables support for GPIOs found on Realtek DHC(Digital 570 Home Center) SoCs family, including RTD1295, RTD1315E, RTD1319, 571 RTD1319D, RTD1395, RTD1619 and RTD1619B. 572 573 Say yes here to support GPIO functionality and GPIO interrupt on 574 Realtek DHC SoCs. 575 576config GPIO_SAMA5D2_PIOBU 577 tristate "SAMA5D2 PIOBU GPIO support" 578 depends on MFD_SYSCON 579 depends on OF_GPIO 580 depends on ARCH_AT91 || COMPILE_TEST 581 select GPIO_SYSCON 582 help 583 Say yes here to use the PIOBU pins as GPIOs. 584 585 PIOBU pins on the SAMA5D2 can be used as GPIOs. 586 The difference from regular GPIOs is that they 587 maintain their value during backup/self-refresh. 588 589config GPIO_SIFIVE 590 tristate "SiFive GPIO support" 591 depends on OF_GPIO 592 select IRQ_DOMAIN_HIERARCHY 593 select GPIO_GENERIC 594 select GPIOLIB_IRQCHIP 595 select REGMAP_MMIO 596 help 597 Say yes here to support the GPIO device on SiFive SoCs. 598 599config GPIO_SIOX 600 tristate "SIOX GPIO support" 601 depends on SIOX 602 select GPIOLIB_IRQCHIP 603 help 604 Say yes here to support SIOX I/O devices. These are units connected 605 via a SIOX bus and have a number of fixed-direction I/O lines. 606 607config GPIO_SNPS_CREG 608 bool "Synopsys GPIO via CREG (Control REGisters) driver" 609 depends on ARC || COMPILE_TEST 610 depends on OF_GPIO 611 help 612 This driver supports GPIOs via CREG on various Synopsys SoCs. 613 This is a single-register MMIO GPIO driver for complex cases 614 where only several fields in register belong to GPIO lines and 615 each GPIO line owns a field with different length and on/off value. 616 617config GPIO_SPEAR_SPICS 618 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 619 depends on PLAT_SPEAR 620 select GENERIC_IRQ_CHIP 621 help 622 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 623 624config GPIO_SPRD 625 tristate "Spreadtrum GPIO support" 626 depends on ARCH_SPRD || COMPILE_TEST 627 depends on OF_GPIO 628 select GPIOLIB_IRQCHIP 629 help 630 Say yes here to support Spreadtrum GPIO device. 631 632config GPIO_STP_XWAY 633 bool "XWAY STP GPIOs" 634 depends on SOC_XWAY || COMPILE_TEST 635 depends on OF_GPIO 636 help 637 This enables support for the Serial To Parallel (STP) unit found on 638 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 639 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 640 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 641 phy status. 642 643config GPIO_SYSCON 644 tristate "GPIO based on SYSCON" 645 depends on MFD_SYSCON && OF 646 help 647 Say yes here to support GPIO functionality though SYSCON driver. 648 649config GPIO_TANGIER 650 tristate 651 select GPIOLIB_IRQCHIP 652 help 653 GPIO support for Intel Tangier and compatible platforms. 654 Currently supported: 655 - Elkhart Lake 656 - Merrifield 657 658 If built as a module its name will be gpio-tangier. 659 660config GPIO_TB10X 661 bool 662 select GPIO_GENERIC 663 select GENERIC_IRQ_CHIP 664 select OF_GPIO 665 666config GPIO_TEGRA 667 tristate "NVIDIA Tegra GPIO support" 668 default ARCH_TEGRA 669 depends on ARCH_TEGRA || COMPILE_TEST 670 depends on OF_GPIO 671 select GPIOLIB_IRQCHIP 672 select IRQ_DOMAIN_HIERARCHY 673 help 674 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 675 676config GPIO_TEGRA186 677 tristate "NVIDIA Tegra186 GPIO support" 678 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 679 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 680 depends on OF_GPIO 681 select GPIOLIB_IRQCHIP 682 select IRQ_DOMAIN_HIERARCHY 683 help 684 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 685 686config GPIO_TS4800 687 tristate "TS-4800 DIO blocks and compatibles" 688 depends on OF_GPIO 689 depends on SOC_IMX51 || COMPILE_TEST 690 select GPIO_GENERIC 691 help 692 This driver support TS-4800 FPGA GPIO controllers. 693 694config GPIO_THUNDERX 695 tristate "Cavium ThunderX/OCTEON-TX GPIO" 696 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 697 depends on PCI_MSI 698 select GPIOLIB_IRQCHIP 699 select IRQ_DOMAIN_HIERARCHY 700 select IRQ_FASTEOI_HIERARCHY_HANDLERS 701 help 702 Say yes here to support the on-chip GPIO lines on the ThunderX 703 and OCTEON-TX families of SoCs. 704 705config GPIO_UNIPHIER 706 tristate "UniPhier GPIO support" 707 depends on ARCH_UNIPHIER || COMPILE_TEST 708 depends on OF_GPIO 709 select IRQ_DOMAIN_HIERARCHY 710 help 711 Say yes here to support UniPhier GPIOs. 712 713config GPIO_VF610 714 def_bool y 715 depends on ARCH_MXC 716 select GPIOLIB_IRQCHIP 717 help 718 Say yes here to support i.MX or Vybrid vf610 GPIOs. 719 720config GPIO_VISCONTI 721 tristate "Toshiba Visconti GPIO support" 722 depends on ARCH_VISCONTI || COMPILE_TEST 723 depends on OF_GPIO 724 select GPIOLIB_IRQCHIP 725 select GPIO_GENERIC 726 select IRQ_DOMAIN_HIERARCHY 727 help 728 Say yes here to support GPIO on Tohisba Visconti. 729 730config GPIO_WCD934X 731 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 732 depends on MFD_WCD934X && OF_GPIO 733 help 734 This driver is to support GPIO block found on the Qualcomm Technologies 735 Inc WCD9340/WCD9341 Audio Codec. 736 737config GPIO_XGENE 738 bool "APM X-Gene GPIO controller support" 739 depends on ARM64 && OF_GPIO 740 help 741 This driver is to support the GPIO block within the APM X-Gene SoC 742 platform's generic flash controller. The GPIO pins are muxed with 743 the generic flash controller's address and data pins. Say yes 744 here to enable the GFC GPIO functionality. 745 746config GPIO_XGENE_SB 747 tristate "APM X-Gene GPIO standby controller support" 748 depends on (ARCH_XGENE || COMPILE_TEST) 749 select GPIO_GENERIC 750 select GPIOLIB_IRQCHIP 751 select IRQ_DOMAIN_HIERARCHY 752 help 753 This driver supports the GPIO block within the APM X-Gene 754 Standby Domain. Say yes here to enable the GPIO functionality. 755 756config GPIO_XILINX 757 tristate "Xilinx GPIO support" 758 select GPIOLIB_IRQCHIP 759 depends on OF_GPIO 760 help 761 Say yes here to support the Xilinx FPGA GPIO device. 762 763config GPIO_XLP 764 tristate "Cavium ThunderX2 GPIO support" 765 depends on ARCH_THUNDER2 || COMPILE_TEST 766 select GPIOLIB_IRQCHIP 767 help 768 This driver provides support for GPIO interface on Cavium's ThunderX2 769 CN99XX SoCs (Originally from Netlogic XLP). 770 771 If unsure, say N. 772 773config GPIO_XTENSA 774 bool "Xtensa GPIO32 support" 775 depends on XTENSA 776 depends on HAVE_XTENSA_GPIO32 777 depends on !SMP 778 help 779 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 780 and EXPSTATE (output) ports. 781 782config GPIO_ZEVIO 783 bool "LSI ZEVIO SoC memory mapped GPIOs" 784 depends on ARM 785 help 786 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 787 788config GPIO_ZYNQ 789 tristate "Xilinx Zynq GPIO support" 790 depends on ARCH_ZYNQ || ARCH_ZYNQMP 791 select GPIOLIB_IRQCHIP 792 help 793 Say yes here to support Xilinx Zynq GPIO controller. 794 795config GPIO_ZYNQMP_MODEPIN 796 tristate "ZynqMP ps-mode pin GPIO configuration driver" 797 depends on ZYNQMP_FIRMWARE 798 default ZYNQMP_FIRMWARE 799 help 800 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 801 driver. 802 803 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 804 is 4-bits boot mode pins. It sets and gets the status of 805 the ps-mode pin. Every pin can be configured as input/output. 806 807config GPIO_LOONGSON1 808 tristate "Loongson1 GPIO support" 809 depends on MACH_LOONGSON32 810 select GPIO_GENERIC 811 help 812 Say Y or M here to support GPIO on Loongson1 SoCs. 813 814config GPIO_AMD_FCH 815 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 816 help 817 This option enables driver for GPIO on AMD's Fusion Controller Hub, 818 as found on G-series SOCs (e.g. GX-412TC). 819 820 Note: This driver doesn't register itself automatically, as it 821 needs to be provided with platform-specific configuration. 822 (See e.g. CONFIG_PCENGINES_APU2.) 823 824config GPIO_MSC313 825 bool "MStar MSC313 GPIO support" 826 depends on ARCH_MSTARV7 827 default ARCH_MSTARV7 828 select GPIOLIB_IRQCHIP 829 select IRQ_DOMAIN_HIERARCHY 830 help 831 Say Y here to support the main GPIO block on MStar/SigmaStar 832 ARMv7-based SoCs. 833 834config GPIO_IDT3243X 835 tristate "IDT 79RC3243X GPIO support" 836 depends on MIKROTIK_RB532 || COMPILE_TEST 837 select GPIO_GENERIC 838 select GPIOLIB_IRQCHIP 839 help 840 Select this option to enable GPIO driver for 841 IDT 79RC3243X-based devices like Mikrotik RB532. 842 843 To compile this driver as a module, choose M here: the module will 844 be called gpio-idt3243x. 845 846endmenu 847 848menu "Port-mapped I/O GPIO drivers" 849 depends on X86 && HAS_IOPORT # I/O space access 850 851config GPIO_VX855 852 tristate "VIA VX855/VX875 GPIO" 853 depends on PCI 854 select MFD_CORE 855 select MFD_VX855 856 help 857 Support access to the VX855/VX875 GPIO lines through the GPIO library. 858 859 This driver provides common support for accessing the device. 860 Additional drivers must be enabled in order to use the 861 functionality of the device. 862 863config GPIO_I8255 864 tristate 865 select GPIO_REGMAP 866 help 867 Enables support for the i8255 interface library functions. The i8255 868 interface library provides functions to facilitate communication with 869 interfaces compatible with the venerable Intel 8255 Programmable 870 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 871 in the early 1970s but compatible interfaces are nowadays typically 872 found embedded in larger VLSI processing chips and FPGA components. 873 874 If built as a module its name will be gpio-i8255. 875 876config GPIO_104_DIO_48E 877 tristate "ACCES 104-DIO-48E GPIO support" 878 depends on PC104 879 select ISA_BUS_API 880 select REGMAP_MMIO 881 select REGMAP_IRQ 882 select GPIOLIB_IRQCHIP 883 select GPIO_I8255 884 select I8254 885 help 886 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 887 104-DIO-24E). The base port addresses for the devices may be 888 configured via the base module parameter. The interrupt line numbers 889 for the devices may be configured via the irq module parameter. 890 891config GPIO_104_IDIO_16 892 tristate "ACCES 104-IDIO-16 GPIO support" 893 depends on PC104 894 select ISA_BUS_API 895 select REGMAP_MMIO 896 select GPIO_IDIO_16 897 help 898 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 899 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 900 base port addresses for the devices may be configured via the base 901 module parameter. The interrupt line numbers for the devices may be 902 configured via the irq module parameter. 903 904config GPIO_104_IDI_48 905 tristate "ACCES 104-IDI-48 GPIO support" 906 depends on PC104 907 select ISA_BUS_API 908 select REGMAP_MMIO 909 select REGMAP_IRQ 910 select GPIOLIB_IRQCHIP 911 select GPIO_REGMAP 912 help 913 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 914 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 915 the devices may be configured via the base module parameter. The 916 interrupt line numbers for the devices may be configured via the irq 917 module parameter. 918 919config GPIO_F7188X 920 tristate "Fintek and Nuvoton Super-I/O GPIO support" 921 help 922 This option enables support for GPIOs found on Fintek Super-I/O 923 chips F71869, F71869A, F71882FG, F71889F and F81866. 924 As well as Nuvoton Super-I/O chip NCT6126D. 925 926 To compile this driver as a module, choose M here: the module will 927 be called f7188x-gpio. 928 929config GPIO_GPIO_MM 930 tristate "Diamond Systems GPIO-MM GPIO support" 931 depends on PC104 932 select ISA_BUS_API 933 select REGMAP_MMIO 934 select GPIO_I8255 935 help 936 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 937 938 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 939 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 940 support for these 48 channels of digital I/O. 941 942 The base port addresses for the devices may be configured via the base 943 array module parameter. 944 945config GPIO_IT87 946 tristate "IT87xx GPIO support" 947 help 948 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 949 950 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 951 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 952 well. 953 954 To compile this driver as a module, choose M here: the module will 955 be called gpio_it87. 956 957config GPIO_SCH 958 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 959 depends on (X86 || COMPILE_TEST) && ACPI 960 depends on LPC_SCH 961 select GPIOLIB_IRQCHIP 962 help 963 Say yes here to support GPIO interface on Intel Poulsbo SCH, 964 Intel Tunnel Creek processor, Intel Centerton processor or 965 Intel Quark X1000 SoC. 966 967 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 968 powered by the core power rail and are turned off during sleep 969 modes (S3 and higher). The remaining four GPIOs are powered by 970 the Intel SCH suspend power supply. These GPIOs remain 971 active during S3. The suspend-powered GPIOs can be used to wake the 972 system from the Suspend-to-RAM state. 973 974 The Intel Tunnel Creek processor has 5 GPIOs powered by the 975 core power rail and 9 from suspend power supply. 976 977 The Intel Centerton processor has a total of 30 GPIO pins. 978 Twenty-one are powered by the core power rail and 9 from the 979 suspend power supply. 980 981 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 982 power well and 6 from the suspend power well. 983 984config GPIO_SCH311X 985 tristate "SMSC SCH311x SuperI/O GPIO" 986 help 987 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 988 SCH3116 "Super I/O" chipsets. 989 990 To compile this driver as a module, choose M here: the module will 991 be called gpio-sch311x. 992 993config GPIO_TS5500 994 tristate "TS-5500 DIO blocks and compatibles" 995 depends on TS5500 || COMPILE_TEST 996 help 997 This driver supports Digital I/O exposed by pin blocks found on some 998 Technologic Systems platforms. It includes, but is not limited to, 3 999 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 1000 LCD port. 1001 1002config GPIO_WINBOND 1003 tristate "Winbond Super I/O GPIO support" 1004 select ISA_BUS_API 1005 help 1006 This option enables support for GPIOs found on Winbond Super I/O 1007 chips. 1008 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 1009 supported. 1010 1011 You will need to provide a module parameter "gpios", or a 1012 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 1013 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 1014 1015 To compile this driver as a module, choose M here: the module will 1016 be called gpio-winbond. 1017 1018config GPIO_WS16C48 1019 tristate "WinSystems WS16C48 GPIO support" 1020 select ISA_BUS_API 1021 select REGMAP_IRQ 1022 select REGMAP_MMIO 1023 select GPIOLIB_IRQCHIP 1024 select GPIO_REGMAP 1025 help 1026 Enables GPIO support for the WinSystems WS16C48. The base port 1027 addresses for the devices may be configured via the base module 1028 parameter. The interrupt line numbers for the devices may be 1029 configured via the irq module parameter. 1030 1031endmenu 1032 1033menu "I2C GPIO expanders" 1034 depends on I2C 1035 1036config GPIO_ADNP 1037 tristate "Avionic Design N-bit GPIO expander" 1038 depends on OF_GPIO 1039 select GPIOLIB_IRQCHIP 1040 help 1041 This option enables support for N GPIOs found on Avionic Design 1042 I2C GPIO expanders. The register space will be extended by powers 1043 of two, so the controller will need to accommodate for that. For 1044 example: if a controller provides 48 pins, 6 registers will be 1045 enough to represent all pins, but the driver will assume a 1046 register layout for 64 pins (8 registers). 1047 1048config GPIO_FXL6408 1049 tristate "FXL6408 I2C GPIO expander" 1050 select GPIO_REGMAP 1051 select REGMAP_I2C 1052 help 1053 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. 1054 1055 To compile this driver as a module, choose M here: the module will 1056 be called gpio-fxl6408. 1057 1058config GPIO_DS4520 1059 tristate "DS4520 I2C GPIO expander" 1060 select REGMAP_I2C 1061 select GPIO_REGMAP 1062 help 1063 GPIO driver for ADI DS4520 I2C-based GPIO expander. 1064 Say yes here to enable the GPIO driver for the ADI DS4520 chip. 1065 1066 To compile this driver as a module, choose M here: the module will 1067 be called gpio-ds4520. 1068 1069config GPIO_GW_PLD 1070 tristate "Gateworks PLD GPIO Expander" 1071 depends on OF_GPIO 1072 help 1073 Say yes here to provide access to the Gateworks I2C PLD GPIO 1074 Expander. This is used at least on the Cambria GW2358-4. 1075 1076config GPIO_MAX7300 1077 tristate "Maxim MAX7300 GPIO expander" 1078 select GPIO_MAX730X 1079 help 1080 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1081 1082config GPIO_MAX732X 1083 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1084 help 1085 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1086 Port Expanders. Each IO port on these chips has a fixed role of 1087 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1088 Input and Output (designed by 'P'). The combinations are listed 1089 below: 1090 1091 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1092 max7322 (4I4O), max7323 (4P4O) 1093 1094 16 bits: max7324 (8I8O), max7325 (8P8O), 1095 max7326 (4I12O), max7327 (4P12O) 1096 1097 Board setup code must specify the model to use, and the start 1098 number for these GPIOs. 1099 1100config GPIO_MAX732X_IRQ 1101 bool "Interrupt controller support for MAX732x" 1102 depends on GPIO_MAX732X=y 1103 select GPIOLIB_IRQCHIP 1104 help 1105 Say yes here to enable the max732x to be used as an interrupt 1106 controller. It requires the driver to be built in the kernel. 1107 1108config GPIO_PCA953X 1109 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1110 select REGMAP_I2C 1111 help 1112 Say yes here to provide access to several register-oriented 1113 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1114 models include: 1115 1116 4 bits: pca9536, pca9537 1117 1118 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1119 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1120 1121 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1122 tca6416 1123 1124 24 bits: tca6424 1125 1126 40 bits: pca9505, pca9698 1127 1128config GPIO_PCA953X_IRQ 1129 bool "Interrupt controller support for PCA953x" 1130 depends on GPIO_PCA953X 1131 select GPIOLIB_IRQCHIP 1132 help 1133 Say yes here to enable the pca953x to be used as an interrupt 1134 controller. 1135 1136config GPIO_PCA9570 1137 tristate "PCA9570 4-Bit I2C GPO expander" 1138 help 1139 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1140 1141 To compile this driver as a module, choose M here: the module will 1142 be called gpio-pca9570. 1143 1144config GPIO_PCF857X 1145 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1146 select GPIOLIB_IRQCHIP 1147 select IRQ_DOMAIN 1148 help 1149 Say yes here to provide access to most "quasi-bidirectional" I2C 1150 GPIO expanders used for additional digital outputs or inputs. 1151 Most of these parts are from NXP, though TI is a second source for 1152 some of them. Compatible models include: 1153 1154 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1155 pca9670, pca9672, pca9674, pca9674a, 1156 max7328, max7329 1157 1158 16 bits: pcf8575, pcf8575c, pca8575, 1159 pca9671, pca9673, pca9675 1160 1161 Your board setup code will need to declare the expanders in 1162 use, and assign numbers to the GPIOs they expose. Those GPIOs 1163 can then be used from drivers and other kernel code, just like 1164 other GPIOs, but only accessible from task contexts. 1165 1166 This driver provides an in-kernel interface to those GPIOs using 1167 platform-neutral GPIO calls. 1168 1169config GPIO_TPIC2810 1170 tristate "TPIC2810 8-Bit I2C GPO expander" 1171 help 1172 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1173 1174 To compile this driver as a module, choose M here: the module will 1175 be called gpio-tpic2810. 1176 1177config GPIO_TS4900 1178 tristate "Technologic Systems FPGA I2C GPIO" 1179 depends on SOC_IMX6 || COMPILE_TEST 1180 select REGMAP_I2C 1181 help 1182 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1183 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1184 1185endmenu 1186 1187menu "MFD GPIO expanders" 1188 1189config GPIO_ADP5520 1190 tristate "GPIO Support for ADP5520 PMIC" 1191 depends on PMIC_ADP5520 1192 help 1193 This option enables support for on-chip GPIO found 1194 on Analog Devices ADP5520 PMICs. 1195 1196config GPIO_ALTERA_A10SR 1197 tristate "Altera Arria10 System Resource GPIO" 1198 depends on MFD_ALTERA_A10SR 1199 help 1200 Driver for Arria10 Development Kit GPIO expansion which 1201 includes reads of pushbuttons and DIP switches as well 1202 as writes to LEDs. 1203 1204config GPIO_ARIZONA 1205 tristate "Wolfson Microelectronics Arizona class devices" 1206 depends on MFD_ARIZONA 1207 help 1208 Support for GPIOs on Wolfson Arizona class devices. 1209 1210config GPIO_BD71815 1211 tristate "ROHM BD71815 PMIC GPIO support" 1212 depends on MFD_ROHM_BD71828 1213 help 1214 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1215 available on the ROHM PMIC. 1216 1217 This driver can also be built as a module. If so, the module 1218 will be called gpio-bd71815. 1219 1220config GPIO_BD71828 1221 tristate "ROHM BD71828 GPIO support" 1222 depends on MFD_ROHM_BD71828 1223 help 1224 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1225 available on the ROHM PMIC in total. The GPIOs are limited to 1226 outputs only and pins must be configured to GPIO outputs by 1227 OTP. Enable this only if you want to use these pins as outputs. 1228 1229 This driver can also be built as a module. If so, the module 1230 will be called gpio-bd71828. 1231 1232config GPIO_BD9571MWV 1233 tristate "ROHM BD9571 GPIO support" 1234 depends on MFD_BD9571MWV 1235 help 1236 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1237 available on the ROHM PMIC in total, both of which can also 1238 generate interrupts. 1239 1240 This driver can also be built as a module. If so, the module 1241 will be called gpio-bd9571mwv. 1242 1243config GPIO_CRYSTAL_COVE 1244 tristate "GPIO support for Crystal Cove PMIC" 1245 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1246 select GPIOLIB_IRQCHIP 1247 help 1248 Support for GPIO pins on Crystal Cove PMIC. 1249 1250 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1251 inside. 1252 1253 This driver can also be built as a module. If so, the module will be 1254 called gpio-crystalcove. 1255 1256config GPIO_CS5535 1257 tristate "AMD CS5535/CS5536 GPIO support" 1258 depends on X86 || MIPS || COMPILE_TEST 1259 depends on MFD_CS5535 1260 help 1261 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1262 can be used for quite a number of things. The CS5535/6 is found on 1263 AMD Geode and Lemote Yeeloong devices. 1264 1265 If unsure, say N. 1266 1267config GPIO_DA9052 1268 tristate "Dialog DA9052 GPIO" 1269 depends on PMIC_DA9052 1270 help 1271 Say yes here to enable the GPIO driver for the DA9052 chip. 1272 1273config GPIO_DA9055 1274 tristate "Dialog Semiconductor DA9055 GPIO" 1275 depends on MFD_DA9055 1276 help 1277 Say yes here to enable the GPIO driver for the DA9055 chip. 1278 1279 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1280 be controlled by this driver. 1281 1282 If driver is built as a module it will be called gpio-da9055. 1283 1284config GPIO_DLN2 1285 tristate "Diolan DLN2 GPIO support" 1286 depends on MFD_DLN2 1287 select GPIOLIB_IRQCHIP 1288 1289 help 1290 Select this option to enable GPIO driver for the Diolan DLN2 1291 board. 1292 1293 This driver can also be built as a module. If so, the module 1294 will be called gpio-dln2. 1295 1296config HTC_EGPIO 1297 bool "HTC EGPIO support" 1298 depends on ARM 1299 help 1300 This driver supports the CPLD egpio chip present on 1301 several HTC phones. It provides basic support for input 1302 pins, output pins, and IRQs. 1303 1304config GPIO_ELKHARTLAKE 1305 tristate "Intel Elkhart Lake PSE GPIO support" 1306 depends on X86 || COMPILE_TEST 1307 select GPIO_TANGIER 1308 help 1309 Select this option to enable GPIO support for Intel Elkhart Lake 1310 PSE GPIO IP. 1311 1312 To compile this driver as a module, choose M here: the module will 1313 be called gpio-elkhartlake. 1314 1315config GPIO_JANZ_TTL 1316 tristate "Janz VMOD-TTL Digital IO Module" 1317 depends on MFD_JANZ_CMODIO 1318 help 1319 This enables support for the Janz VMOD-TTL Digital IO module. 1320 This driver provides support for driving the pins in output 1321 mode only. Input mode is not supported. 1322 1323config GPIO_KEMPLD 1324 tristate "Kontron ETX / COMexpress GPIO" 1325 depends on MFD_KEMPLD 1326 help 1327 This enables support for the PLD GPIO interface on some Kontron ETX 1328 and COMexpress (ETXexpress) modules. 1329 1330 This driver can also be built as a module. If so, the module will be 1331 called gpio-kempld. 1332 1333config GPIO_LJCA 1334 tristate "INTEL La Jolla Cove Adapter GPIO support" 1335 depends on USB_LJCA 1336 select GPIOLIB_IRQCHIP 1337 default USB_LJCA 1338 help 1339 Select this option to enable GPIO driver for the INTEL 1340 La Jolla Cove Adapter (LJCA) board. 1341 1342 This driver can also be built as a module. If so, the module 1343 will be called gpio-ljca. 1344 1345config GPIO_LP3943 1346 tristate "TI/National Semiconductor LP3943 GPIO expander" 1347 depends on MFD_LP3943 1348 help 1349 GPIO driver for LP3943 MFD. 1350 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1351 Open drain outputs are required for this usage. 1352 1353config GPIO_LP873X 1354 tristate "TI LP873X GPO" 1355 depends on MFD_TI_LP873X 1356 help 1357 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1358 on LP873X PMICs. 1359 1360 This driver can also be built as a module. If so, the module will be 1361 called gpio-lp873x. 1362 1363config GPIO_LP87565 1364 tristate "TI LP87565 GPIO" 1365 depends on MFD_TI_LP87565 1366 help 1367 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1368 on LP87565 PMICs. 1369 1370 This driver can also be built as a module. If so, the module will be 1371 called gpio-lp87565. 1372 1373config GPIO_MADERA 1374 tristate "Cirrus Logic Madera class codecs" 1375 depends on PINCTRL_MADERA 1376 help 1377 Support for GPIOs on Cirrus Logic Madera class codecs. 1378 1379config GPIO_MAX77620 1380 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1381 depends on MFD_MAX77620 1382 select GPIOLIB_IRQCHIP 1383 help 1384 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1385 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1386 driver also provides interrupt support for each of the GPIOs. 1387 Say yes here to enable the max77620 to be used as GPIO controller. 1388 1389config GPIO_MAX77650 1390 tristate "Maxim MAX77650/77651 GPIO support" 1391 depends on MFD_MAX77650 1392 help 1393 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1394 These chips have a single pin that can be configured as GPIO. 1395 1396config GPIO_PALMAS 1397 bool "TI PALMAS series PMICs GPIO" 1398 depends on MFD_PALMAS 1399 help 1400 Select this option to enable GPIO driver for the TI PALMAS 1401 series chip family. 1402 1403config GPIO_PMIC_EIC_SPRD 1404 tristate "Spreadtrum PMIC EIC support" 1405 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1406 depends on OF_GPIO 1407 select GPIOLIB_IRQCHIP 1408 help 1409 Say yes here to support Spreadtrum PMIC EIC device. 1410 1411config GPIO_RC5T583 1412 bool "RICOH RC5T583 GPIO" 1413 depends on MFD_RC5T583 1414 help 1415 Select this option to enable GPIO driver for the Ricoh RC5T583 1416 chip family. 1417 This driver provides the support for driving/reading the GPIO pins 1418 of RC5T583 device through standard GPIO library. 1419 1420config GPIO_SL28CPLD 1421 tristate "Kontron sl28cpld GPIO support" 1422 depends on MFD_SL28CPLD || COMPILE_TEST 1423 select GPIO_REGMAP 1424 select GPIOLIB_IRQCHIP 1425 select REGMAP_IRQ 1426 help 1427 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1428 1429 This driver can also be built as a module. If so, the module will be 1430 called gpio-sl28cpld. 1431 1432config GPIO_STMPE 1433 bool "STMPE GPIOs" 1434 depends on MFD_STMPE 1435 depends on OF_GPIO 1436 select GPIOLIB_IRQCHIP 1437 help 1438 This enables support for the GPIOs found on the STMPE I/O 1439 Expanders. 1440 1441config GPIO_TC3589X 1442 bool "TC3589X GPIOs" 1443 depends on MFD_TC3589X 1444 depends on OF_GPIO 1445 select GPIOLIB_IRQCHIP 1446 help 1447 This enables support for the GPIOs found on the TC3589X 1448 I/O Expander. 1449 1450config GPIO_TIMBERDALE 1451 bool "Support for timberdale GPIO IP" 1452 depends on MFD_TIMBERDALE 1453 help 1454 Add support for the GPIO IP in the timberdale FPGA. 1455 1456config GPIO_TN48M_CPLD 1457 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1458 depends on MFD_TN48M_CPLD 1459 select GPIO_REGMAP 1460 help 1461 This enables support for the GPIOs found on the Delta 1462 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1463 they are input-only or output-only type. 1464 1465 This driver can also be built as a module. If so, the 1466 module will be called gpio-tn48m. 1467 1468config GPIO_TPS65086 1469 tristate "TI TPS65086 GPO" 1470 depends on MFD_TPS65086 1471 help 1472 This driver supports the GPO on TI TPS65086x PMICs. 1473 1474config GPIO_TPS65218 1475 tristate "TPS65218 GPIO" 1476 depends on MFD_TPS65218 1477 help 1478 Select this option to enable GPIO driver for the TPS65218 1479 chip family. 1480 1481config GPIO_TPS65219 1482 tristate "TPS65219 GPIO" 1483 depends on MFD_TPS65219 1484 default MFD_TPS65219 1485 help 1486 Select this option to enable GPIO driver for the TPS65219 chip 1487 family. 1488 GPIO0 is statically configured as either input or output prior to 1489 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting 1490 is statically configured by NVM. GPIO0 can't be used as a generic 1491 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when 1492 MULTI_DEVICE_EN=1. 1493 1494 This driver can also be built as a module. If so, the module will be 1495 called gpio_tps65219. 1496 1497config GPIO_TPS6586X 1498 bool "TPS6586X GPIO" 1499 depends on MFD_TPS6586X 1500 help 1501 Select this option to enable GPIO driver for the TPS6586X 1502 chip family. 1503 1504config GPIO_TPS65910 1505 bool "TPS65910 GPIO" 1506 depends on MFD_TPS65910 1507 help 1508 Select this option to enable GPIO driver for the TPS65910 1509 chip family. 1510 1511config GPIO_TPS65912 1512 tristate "TI TPS65912 GPIO" 1513 depends on MFD_TPS65912 1514 help 1515 This driver supports TPS65912 GPIO chip. 1516 1517config GPIO_TPS68470 1518 tristate "TPS68470 GPIO" 1519 depends on INTEL_SKL_INT3472 1520 help 1521 Select this option to enable GPIO driver for the TPS68470 1522 chip family. 1523 There are 7 GPIOs and few sensor-related GPIOs supported 1524 by the TPS68470. While the 7 GPIOs can be configured as 1525 input or output as appropriate, the sensor related GPIOs 1526 are "output only" GPIOs. 1527 1528config GPIO_TQMX86 1529 tristate "TQ-Systems QTMX86 GPIO" 1530 depends on MFD_TQMX86 || COMPILE_TEST 1531 depends on HAS_IOPORT_MAP 1532 select GPIOLIB_IRQCHIP 1533 help 1534 This driver supports GPIO on the TQMX86 IO controller. 1535 1536config GPIO_TWL4030 1537 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1538 depends on TWL4030_CORE 1539 help 1540 Say yes here to access the GPIO signals of various multi-function 1541 power management chips from Texas Instruments. 1542 1543config GPIO_TWL6040 1544 tristate "TWL6040 GPO" 1545 depends on TWL6040_CORE 1546 help 1547 Say yes here to access the GPO signals of twl6040 1548 audio chip from Texas Instruments. 1549 1550config GPIO_WHISKEY_COVE 1551 tristate "GPIO support for Whiskey Cove PMIC" 1552 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1553 select GPIOLIB_IRQCHIP 1554 help 1555 Support for GPIO pins on Whiskey Cove PMIC. 1556 1557 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1558 inside. 1559 1560 This driver can also be built as a module. If so, the module will be 1561 called gpio-wcove. 1562 1563config GPIO_WM831X 1564 tristate "WM831x GPIOs" 1565 depends on MFD_WM831X 1566 help 1567 Say yes here to access the GPIO signals of WM831x power management 1568 chips from Wolfson Microelectronics. 1569 1570config GPIO_WM8350 1571 tristate "WM8350 GPIOs" 1572 depends on MFD_WM8350 1573 help 1574 Say yes here to access the GPIO signals of WM8350 power management 1575 chips from Wolfson Microelectronics. 1576 1577config GPIO_WM8994 1578 tristate "WM8994 GPIOs" 1579 depends on MFD_WM8994 1580 help 1581 Say yes here to access the GPIO signals of WM8994 audio hub 1582 CODECs from Wolfson Microelectronics. 1583 1584endmenu 1585 1586menu "PCI GPIO expanders" 1587 depends on PCI 1588 1589config GPIO_AMD8111 1590 tristate "AMD 8111 GPIO driver" 1591 depends on X86 || COMPILE_TEST 1592 depends on HAS_IOPORT_MAP 1593 help 1594 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1595 1596 Note that usually system firmware/ACPI handles GPIO pins on their 1597 own and users might easily break their systems with uncareful usage 1598 of this driver! 1599 1600 If unsure, say N 1601 1602config GPIO_BT8XX 1603 tristate "BT8XX GPIO abuser" 1604 depends on VIDEO_BT848=n 1605 help 1606 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1607 as a cheap PCI GPIO card. 1608 1609 This chip can be found on Miro, Hauppauge and STB TV-cards. 1610 1611 The card needs to be physically altered for using it as a 1612 GPIO card. For more information on how to build a GPIO card 1613 from a BT8xx TV card, see the documentation file at 1614 Documentation/driver-api/gpio/bt8xxgpio.rst 1615 1616 If unsure, say N. 1617 1618config GPIO_MERRIFIELD 1619 tristate "Intel Merrifield GPIO support" 1620 depends on X86_INTEL_MID 1621 select GPIO_TANGIER 1622 help 1623 Say Y here to support Intel Merrifield GPIO. 1624 1625config GPIO_MLXBF 1626 tristate "Mellanox BlueField SoC GPIO" 1627 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1628 select GPIO_GENERIC 1629 help 1630 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1631 1632config GPIO_MLXBF2 1633 tristate "Mellanox BlueField 2 SoC GPIO" 1634 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1635 select GPIO_GENERIC 1636 select GPIOLIB_IRQCHIP 1637 help 1638 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1639 1640config GPIO_MLXBF3 1641 tristate "Mellanox BlueField 3 SoC GPIO" 1642 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST 1643 select GPIO_GENERIC 1644 select GPIOLIB_IRQCHIP 1645 help 1646 Say Y if you want GPIO support on Mellanox BlueField 3 SoC. 1647 This GPIO controller supports interrupt handling and enables the 1648 manipulation of certain GPIO pins. 1649 This controller should be used in parallel with pinctrl-mlxbf3 to 1650 control the desired GPIOs. 1651 This driver can also be built as a module called mlxbf3-gpio. 1652 1653config GPIO_ML_IOH 1654 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1655 depends on X86 || COMPILE_TEST 1656 select GENERIC_IRQ_CHIP 1657 help 1658 ML7213 is companion chip for Intel Atom E6xx series. 1659 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1660 Hub) which is for IVI (In-Vehicle Infotainment) use. 1661 This driver can access the IOH's GPIO device. 1662 1663config GPIO_PCH 1664 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1665 depends on X86_32 || MIPS || COMPILE_TEST 1666 select GENERIC_IRQ_CHIP 1667 help 1668 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1669 which is an IOH (Input/Output Hub) for x86 embedded processor. 1670 This driver can access PCH GPIO device. 1671 1672 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1673 Output Hub), ML7223 and ML7831. 1674 ML7223 IOH is for MP (Media Phone) use. 1675 ML7831 IOH is for general purpose use. 1676 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1677 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1678 1679config GPIO_PCI_IDIO_16 1680 tristate "ACCES PCI-IDIO-16 GPIO support" 1681 select REGMAP_MMIO 1682 select GPIO_IDIO_16 1683 help 1684 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1685 generated when any of the inputs change state (low to high or high to 1686 low). Input filter control is not supported by this driver, and the 1687 input filters are deactivated by this driver. 1688 1689config GPIO_PCIE_IDIO_24 1690 tristate "ACCES PCIe-IDIO-24 GPIO support" 1691 select REGMAP_IRQ 1692 select REGMAP_MMIO 1693 select GPIOLIB_IRQCHIP 1694 select GPIO_REGMAP 1695 help 1696 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1697 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1698 when any of the inputs change state (low to high or high to low). 1699 Input filter control is not supported by this driver, and the input 1700 filters are deactivated by this driver. 1701 1702config GPIO_RDC321X 1703 tristate "RDC R-321x GPIO support" 1704 select MFD_CORE 1705 select MFD_RDC321X 1706 help 1707 Support for the RDC R321x SoC GPIOs over southbridge 1708 PCI configuration space. 1709 1710config GPIO_SODAVILLE 1711 bool "Intel Sodaville GPIO support" 1712 depends on X86 && OF 1713 select GPIO_GENERIC 1714 select GENERIC_IRQ_CHIP 1715 help 1716 Say Y here to support Intel Sodaville GPIO. 1717 1718endmenu 1719 1720menu "SPI GPIO expanders" 1721 depends on SPI_MASTER 1722 1723config GPIO_74X164 1724 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1725 depends on OF_GPIO 1726 help 1727 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1728 shift registers. This driver can be used to provide access 1729 to more GPIO outputs. 1730 1731config GPIO_MAX3191X 1732 tristate "Maxim MAX3191x industrial serializer" 1733 select CRC8 1734 help 1735 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1736 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1737 chip to make 8 digital 24V inputs available via SPI. Supports 1738 CRC checksums to guard against electromagnetic interference, 1739 as well as undervoltage and overtemperature detection. 1740 1741config GPIO_MAX7301 1742 tristate "Maxim MAX7301 GPIO expander" 1743 select GPIO_MAX730X 1744 help 1745 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1746 1747config GPIO_MC33880 1748 tristate "Freescale MC33880 high-side/low-side switch" 1749 help 1750 SPI driver for Freescale MC33880 high-side/low-side switch. 1751 This provides GPIO interface supporting inputs and outputs. 1752 1753config GPIO_PISOSR 1754 tristate "Generic parallel-in/serial-out shift register" 1755 help 1756 GPIO driver for SPI compatible parallel-in/serial-out shift 1757 registers. These are input only devices. 1758 1759config GPIO_XRA1403 1760 tristate "EXAR XRA1403 16-bit GPIO expander" 1761 select REGMAP_SPI 1762 help 1763 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1764 1765config GPIO_MOXTET 1766 tristate "Turris Mox Moxtet bus GPIO expander" 1767 depends on MOXTET 1768 help 1769 Say yes here if you are building for the Turris Mox router. 1770 This is the driver needed for configuring the GPIOs via the Moxtet 1771 bus. For example the Mox module with SFP cage needs this driver 1772 so that phylink can use corresponding GPIOs. 1773 1774endmenu 1775 1776menu "USB GPIO expanders" 1777 depends on USB 1778 1779config GPIO_VIPERBOARD 1780 tristate "Viperboard GPIO a & b support" 1781 depends on MFD_VIPERBOARD 1782 help 1783 Say yes here to access the GPIO signals of Nano River 1784 Technologies Viperboard. There are two GPIO chips on the 1785 board: gpioa and gpiob. 1786 See viperboard API specification and Nano 1787 River Tech's viperboard.h for detailed meaning 1788 of the module parameters. 1789 1790endmenu 1791 1792menu "Virtual GPIO drivers" 1793 1794config GPIO_AGGREGATOR 1795 tristate "GPIO Aggregator" 1796 help 1797 Say yes here to enable the GPIO Aggregator, which provides a way to 1798 aggregate existing GPIO lines into a new virtual GPIO chip. 1799 This can serve the following purposes: 1800 - Assign permissions for a collection of GPIO lines to a user, 1801 - Export a collection of GPIO lines to a virtual machine, 1802 - Provide a generic driver for a GPIO-operated device in an 1803 industrial control context, to be operated from userspace using 1804 the GPIO chardev interface. 1805 1806config GPIO_LATCH 1807 tristate "GPIO latch driver" 1808 help 1809 Say yes here to enable a driver for GPIO multiplexers based on latches 1810 connected to other GPIOs. 1811 1812config GPIO_MOCKUP 1813 tristate "GPIO Testing Driver (DEPRECATED)" 1814 select IRQ_SIM 1815 help 1816 This module is DEPRECATED. Please consider using gpio-sim instead. 1817 1818 This enables GPIO Testing driver, which provides a way to test GPIO 1819 subsystem through sysfs (or char device) and debugfs. 1820 User could use it through the script in 1821 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1822 it. 1823 1824config GPIO_VIRTIO 1825 tristate "VirtIO GPIO support" 1826 depends on VIRTIO 1827 select GPIOLIB_IRQCHIP 1828 help 1829 Say Y here to enable guest support for virtio-based GPIO controllers. 1830 1831 These virtual GPIOs can be routed to real GPIOs or attached to 1832 simulators on the host (like QEMU). 1833 1834config GPIO_SIM 1835 tristate "GPIO Simulator Module" 1836 select IRQ_SIM 1837 select CONFIGFS_FS 1838 help 1839 This enables the GPIO simulator - a configfs-based GPIO testing 1840 driver. 1841 1842endmenu 1843 1844endif 1845