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 bool "VF610 GPIO support" 715 default y if SOC_VF610 716 depends on ARCH_MXC 717 select GPIOLIB_IRQCHIP 718 help 719 Say yes here to support i.MX or Vybrid vf610 GPIOs. 720 721config GPIO_VISCONTI 722 tristate "Toshiba Visconti GPIO support" 723 depends on ARCH_VISCONTI || COMPILE_TEST 724 depends on OF_GPIO 725 select GPIOLIB_IRQCHIP 726 select GPIO_GENERIC 727 select IRQ_DOMAIN_HIERARCHY 728 help 729 Say yes here to support GPIO on Tohisba Visconti. 730 731config GPIO_WCD934X 732 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 733 depends on MFD_WCD934X && OF_GPIO 734 help 735 This driver is to support GPIO block found on the Qualcomm Technologies 736 Inc WCD9340/WCD9341 Audio Codec. 737 738config GPIO_XGENE 739 bool "APM X-Gene GPIO controller support" 740 depends on ARM64 && OF_GPIO 741 help 742 This driver is to support the GPIO block within the APM X-Gene SoC 743 platform's generic flash controller. The GPIO pins are muxed with 744 the generic flash controller's address and data pins. Say yes 745 here to enable the GFC GPIO functionality. 746 747config GPIO_XGENE_SB 748 tristate "APM X-Gene GPIO standby controller support" 749 depends on (ARCH_XGENE || COMPILE_TEST) 750 select GPIO_GENERIC 751 select GPIOLIB_IRQCHIP 752 select IRQ_DOMAIN_HIERARCHY 753 help 754 This driver supports the GPIO block within the APM X-Gene 755 Standby Domain. Say yes here to enable the GPIO functionality. 756 757config GPIO_XILINX 758 tristate "Xilinx GPIO support" 759 select GPIOLIB_IRQCHIP 760 depends on OF_GPIO 761 help 762 Say yes here to support the Xilinx FPGA GPIO device. 763 764config GPIO_XLP 765 tristate "Cavium ThunderX2 GPIO support" 766 depends on ARCH_THUNDER2 || COMPILE_TEST 767 select GPIOLIB_IRQCHIP 768 help 769 This driver provides support for GPIO interface on Cavium's ThunderX2 770 CN99XX SoCs (Originally from Netlogic XLP). 771 772 If unsure, say N. 773 774config GPIO_XTENSA 775 bool "Xtensa GPIO32 support" 776 depends on XTENSA 777 depends on HAVE_XTENSA_GPIO32 778 depends on !SMP 779 help 780 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 781 and EXPSTATE (output) ports. 782 783config GPIO_ZEVIO 784 bool "LSI ZEVIO SoC memory mapped GPIOs" 785 depends on ARM 786 help 787 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 788 789config GPIO_ZYNQ 790 tristate "Xilinx Zynq GPIO support" 791 depends on ARCH_ZYNQ || ARCH_ZYNQMP 792 select GPIOLIB_IRQCHIP 793 help 794 Say yes here to support Xilinx Zynq GPIO controller. 795 796config GPIO_ZYNQMP_MODEPIN 797 tristate "ZynqMP ps-mode pin GPIO configuration driver" 798 depends on ZYNQMP_FIRMWARE 799 default ZYNQMP_FIRMWARE 800 help 801 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 802 driver. 803 804 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 805 is 4-bits boot mode pins. It sets and gets the status of 806 the ps-mode pin. Every pin can be configured as input/output. 807 808config GPIO_LOONGSON1 809 tristate "Loongson1 GPIO support" 810 depends on MACH_LOONGSON32 811 select GPIO_GENERIC 812 help 813 Say Y or M here to support GPIO on Loongson1 SoCs. 814 815config GPIO_AMD_FCH 816 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 817 help 818 This option enables driver for GPIO on AMD's Fusion Controller Hub, 819 as found on G-series SOCs (e.g. GX-412TC). 820 821 Note: This driver doesn't register itself automatically, as it 822 needs to be provided with platform-specific configuration. 823 (See e.g. CONFIG_PCENGINES_APU2.) 824 825config GPIO_MSC313 826 bool "MStar MSC313 GPIO support" 827 depends on ARCH_MSTARV7 828 default ARCH_MSTARV7 829 select GPIOLIB_IRQCHIP 830 select IRQ_DOMAIN_HIERARCHY 831 help 832 Say Y here to support the main GPIO block on MStar/SigmaStar 833 ARMv7-based SoCs. 834 835config GPIO_IDT3243X 836 tristate "IDT 79RC3243X GPIO support" 837 depends on MIKROTIK_RB532 || COMPILE_TEST 838 select GPIO_GENERIC 839 select GPIOLIB_IRQCHIP 840 help 841 Select this option to enable GPIO driver for 842 IDT 79RC3243X-based devices like Mikrotik RB532. 843 844 To compile this driver as a module, choose M here: the module will 845 be called gpio-idt3243x. 846 847endmenu 848 849menu "Port-mapped I/O GPIO drivers" 850 depends on X86 && HAS_IOPORT # I/O space access 851 852config GPIO_VX855 853 tristate "VIA VX855/VX875 GPIO" 854 depends on PCI 855 select MFD_CORE 856 select MFD_VX855 857 help 858 Support access to the VX855/VX875 GPIO lines through the GPIO library. 859 860 This driver provides common support for accessing the device. 861 Additional drivers must be enabled in order to use the 862 functionality of the device. 863 864config GPIO_I8255 865 tristate 866 select GPIO_REGMAP 867 help 868 Enables support for the i8255 interface library functions. The i8255 869 interface library provides functions to facilitate communication with 870 interfaces compatible with the venerable Intel 8255 Programmable 871 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 872 in the early 1970s but compatible interfaces are nowadays typically 873 found embedded in larger VLSI processing chips and FPGA components. 874 875 If built as a module its name will be gpio-i8255. 876 877config GPIO_104_DIO_48E 878 tristate "ACCES 104-DIO-48E GPIO support" 879 depends on PC104 880 select ISA_BUS_API 881 select REGMAP_MMIO 882 select REGMAP_IRQ 883 select GPIOLIB_IRQCHIP 884 select GPIO_I8255 885 select I8254 886 help 887 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 888 104-DIO-24E). The base port addresses for the devices may be 889 configured via the base module parameter. The interrupt line numbers 890 for the devices may be configured via the irq module parameter. 891 892config GPIO_104_IDIO_16 893 tristate "ACCES 104-IDIO-16 GPIO support" 894 depends on PC104 895 select ISA_BUS_API 896 select REGMAP_MMIO 897 select GPIO_IDIO_16 898 help 899 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 900 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 901 base port addresses for the devices may be configured via the base 902 module parameter. The interrupt line numbers for the devices may be 903 configured via the irq module parameter. 904 905config GPIO_104_IDI_48 906 tristate "ACCES 104-IDI-48 GPIO support" 907 depends on PC104 908 select ISA_BUS_API 909 select REGMAP_MMIO 910 select REGMAP_IRQ 911 select GPIOLIB_IRQCHIP 912 select GPIO_REGMAP 913 help 914 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 915 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 916 the devices may be configured via the base module parameter. The 917 interrupt line numbers for the devices may be configured via the irq 918 module parameter. 919 920config GPIO_F7188X 921 tristate "Fintek and Nuvoton Super-I/O GPIO support" 922 help 923 This option enables support for GPIOs found on Fintek Super-I/O 924 chips F71869, F71869A, F71882FG, F71889F and F81866. 925 As well as Nuvoton Super-I/O chip NCT6126D. 926 927 To compile this driver as a module, choose M here: the module will 928 be called f7188x-gpio. 929 930config GPIO_GPIO_MM 931 tristate "Diamond Systems GPIO-MM GPIO support" 932 depends on PC104 933 select ISA_BUS_API 934 select REGMAP_MMIO 935 select GPIO_I8255 936 help 937 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 938 939 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 940 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 941 support for these 48 channels of digital I/O. 942 943 The base port addresses for the devices may be configured via the base 944 array module parameter. 945 946config GPIO_IT87 947 tristate "IT87xx GPIO support" 948 help 949 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 950 951 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 952 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 953 well. 954 955 To compile this driver as a module, choose M here: the module will 956 be called gpio_it87. 957 958config GPIO_SCH 959 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 960 depends on (X86 || COMPILE_TEST) && ACPI 961 depends on LPC_SCH 962 select GPIOLIB_IRQCHIP 963 help 964 Say yes here to support GPIO interface on Intel Poulsbo SCH, 965 Intel Tunnel Creek processor, Intel Centerton processor or 966 Intel Quark X1000 SoC. 967 968 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 969 powered by the core power rail and are turned off during sleep 970 modes (S3 and higher). The remaining four GPIOs are powered by 971 the Intel SCH suspend power supply. These GPIOs remain 972 active during S3. The suspend-powered GPIOs can be used to wake the 973 system from the Suspend-to-RAM state. 974 975 The Intel Tunnel Creek processor has 5 GPIOs powered by the 976 core power rail and 9 from suspend power supply. 977 978 The Intel Centerton processor has a total of 30 GPIO pins. 979 Twenty-one are powered by the core power rail and 9 from the 980 suspend power supply. 981 982 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 983 power well and 6 from the suspend power well. 984 985config GPIO_SCH311X 986 tristate "SMSC SCH311x SuperI/O GPIO" 987 help 988 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 989 SCH3116 "Super I/O" chipsets. 990 991 To compile this driver as a module, choose M here: the module will 992 be called gpio-sch311x. 993 994config GPIO_TS5500 995 tristate "TS-5500 DIO blocks and compatibles" 996 depends on TS5500 || COMPILE_TEST 997 help 998 This driver supports Digital I/O exposed by pin blocks found on some 999 Technologic Systems platforms. It includes, but is not limited to, 3 1000 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 1001 LCD port. 1002 1003config GPIO_WINBOND 1004 tristate "Winbond Super I/O GPIO support" 1005 select ISA_BUS_API 1006 help 1007 This option enables support for GPIOs found on Winbond Super I/O 1008 chips. 1009 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 1010 supported. 1011 1012 You will need to provide a module parameter "gpios", or a 1013 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 1014 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 1015 1016 To compile this driver as a module, choose M here: the module will 1017 be called gpio-winbond. 1018 1019config GPIO_WS16C48 1020 tristate "WinSystems WS16C48 GPIO support" 1021 select ISA_BUS_API 1022 select REGMAP_IRQ 1023 select REGMAP_MMIO 1024 select GPIOLIB_IRQCHIP 1025 select GPIO_REGMAP 1026 help 1027 Enables GPIO support for the WinSystems WS16C48. The base port 1028 addresses for the devices may be configured via the base module 1029 parameter. The interrupt line numbers for the devices may be 1030 configured via the irq module parameter. 1031 1032endmenu 1033 1034menu "I2C GPIO expanders" 1035 depends on I2C 1036 1037config GPIO_ADNP 1038 tristate "Avionic Design N-bit GPIO expander" 1039 depends on OF_GPIO 1040 select GPIOLIB_IRQCHIP 1041 help 1042 This option enables support for N GPIOs found on Avionic Design 1043 I2C GPIO expanders. The register space will be extended by powers 1044 of two, so the controller will need to accommodate for that. For 1045 example: if a controller provides 48 pins, 6 registers will be 1046 enough to represent all pins, but the driver will assume a 1047 register layout for 64 pins (8 registers). 1048 1049config GPIO_FXL6408 1050 tristate "FXL6408 I2C GPIO expander" 1051 select GPIO_REGMAP 1052 select REGMAP_I2C 1053 help 1054 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. 1055 1056 To compile this driver as a module, choose M here: the module will 1057 be called gpio-fxl6408. 1058 1059config GPIO_DS4520 1060 tristate "DS4520 I2C GPIO expander" 1061 select REGMAP_I2C 1062 select GPIO_REGMAP 1063 help 1064 GPIO driver for ADI DS4520 I2C-based GPIO expander. 1065 Say yes here to enable the GPIO driver for the ADI DS4520 chip. 1066 1067 To compile this driver as a module, choose M here: the module will 1068 be called gpio-ds4520. 1069 1070config GPIO_GW_PLD 1071 tristate "Gateworks PLD GPIO Expander" 1072 depends on OF_GPIO 1073 help 1074 Say yes here to provide access to the Gateworks I2C PLD GPIO 1075 Expander. This is used at least on the Cambria GW2358-4. 1076 1077config GPIO_MAX7300 1078 tristate "Maxim MAX7300 GPIO expander" 1079 select GPIO_MAX730X 1080 help 1081 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1082 1083config GPIO_MAX732X 1084 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1085 help 1086 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1087 Port Expanders. Each IO port on these chips has a fixed role of 1088 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1089 Input and Output (designed by 'P'). The combinations are listed 1090 below: 1091 1092 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1093 max7322 (4I4O), max7323 (4P4O) 1094 1095 16 bits: max7324 (8I8O), max7325 (8P8O), 1096 max7326 (4I12O), max7327 (4P12O) 1097 1098 Board setup code must specify the model to use, and the start 1099 number for these GPIOs. 1100 1101config GPIO_MAX732X_IRQ 1102 bool "Interrupt controller support for MAX732x" 1103 depends on GPIO_MAX732X=y 1104 select GPIOLIB_IRQCHIP 1105 help 1106 Say yes here to enable the max732x to be used as an interrupt 1107 controller. It requires the driver to be built in the kernel. 1108 1109config GPIO_PCA953X 1110 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1111 select REGMAP_I2C 1112 help 1113 Say yes here to provide access to several register-oriented 1114 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1115 models include: 1116 1117 4 bits: pca9536, pca9537 1118 1119 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1120 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1121 1122 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1123 tca6416 1124 1125 24 bits: tca6424 1126 1127 40 bits: pca9505, pca9698 1128 1129config GPIO_PCA953X_IRQ 1130 bool "Interrupt controller support for PCA953x" 1131 depends on GPIO_PCA953X 1132 select GPIOLIB_IRQCHIP 1133 help 1134 Say yes here to enable the pca953x to be used as an interrupt 1135 controller. 1136 1137config GPIO_PCA9570 1138 tristate "PCA9570 4-Bit I2C GPO expander" 1139 help 1140 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1141 1142 To compile this driver as a module, choose M here: the module will 1143 be called gpio-pca9570. 1144 1145config GPIO_PCF857X 1146 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1147 select GPIOLIB_IRQCHIP 1148 select IRQ_DOMAIN 1149 help 1150 Say yes here to provide access to most "quasi-bidirectional" I2C 1151 GPIO expanders used for additional digital outputs or inputs. 1152 Most of these parts are from NXP, though TI is a second source for 1153 some of them. Compatible models include: 1154 1155 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1156 pca9670, pca9672, pca9674, pca9674a, 1157 max7328, max7329 1158 1159 16 bits: pcf8575, pcf8575c, pca8575, 1160 pca9671, pca9673, pca9675 1161 1162 Your board setup code will need to declare the expanders in 1163 use, and assign numbers to the GPIOs they expose. Those GPIOs 1164 can then be used from drivers and other kernel code, just like 1165 other GPIOs, but only accessible from task contexts. 1166 1167 This driver provides an in-kernel interface to those GPIOs using 1168 platform-neutral GPIO calls. 1169 1170config GPIO_TPIC2810 1171 tristate "TPIC2810 8-Bit I2C GPO expander" 1172 help 1173 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1174 1175 To compile this driver as a module, choose M here: the module will 1176 be called gpio-tpic2810. 1177 1178config GPIO_TS4900 1179 tristate "Technologic Systems FPGA I2C GPIO" 1180 depends on SOC_IMX6 || COMPILE_TEST 1181 select REGMAP_I2C 1182 help 1183 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1184 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1185 1186endmenu 1187 1188menu "MFD GPIO expanders" 1189 1190config GPIO_ADP5520 1191 tristate "GPIO Support for ADP5520 PMIC" 1192 depends on PMIC_ADP5520 1193 help 1194 This option enables support for on-chip GPIO found 1195 on Analog Devices ADP5520 PMICs. 1196 1197config GPIO_ALTERA_A10SR 1198 tristate "Altera Arria10 System Resource GPIO" 1199 depends on MFD_ALTERA_A10SR 1200 help 1201 Driver for Arria10 Development Kit GPIO expansion which 1202 includes reads of pushbuttons and DIP switches as well 1203 as writes to LEDs. 1204 1205config GPIO_ARIZONA 1206 tristate "Wolfson Microelectronics Arizona class devices" 1207 depends on MFD_ARIZONA 1208 help 1209 Support for GPIOs on Wolfson Arizona class devices. 1210 1211config GPIO_BD71815 1212 tristate "ROHM BD71815 PMIC GPIO support" 1213 depends on MFD_ROHM_BD71828 1214 help 1215 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1216 available on the ROHM PMIC. 1217 1218 This driver can also be built as a module. If so, the module 1219 will be called gpio-bd71815. 1220 1221config GPIO_BD71828 1222 tristate "ROHM BD71828 GPIO support" 1223 depends on MFD_ROHM_BD71828 1224 help 1225 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1226 available on the ROHM PMIC in total. The GPIOs are limited to 1227 outputs only and pins must be configured to GPIO outputs by 1228 OTP. Enable this only if you want to use these pins as outputs. 1229 1230 This driver can also be built as a module. If so, the module 1231 will be called gpio-bd71828. 1232 1233config GPIO_BD9571MWV 1234 tristate "ROHM BD9571 GPIO support" 1235 depends on MFD_BD9571MWV 1236 help 1237 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1238 available on the ROHM PMIC in total, both of which can also 1239 generate interrupts. 1240 1241 This driver can also be built as a module. If so, the module 1242 will be called gpio-bd9571mwv. 1243 1244config GPIO_CRYSTAL_COVE 1245 tristate "GPIO support for Crystal Cove PMIC" 1246 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1247 select GPIOLIB_IRQCHIP 1248 help 1249 Support for GPIO pins on Crystal Cove PMIC. 1250 1251 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1252 inside. 1253 1254 This driver can also be built as a module. If so, the module will be 1255 called gpio-crystalcove. 1256 1257config GPIO_CS5535 1258 tristate "AMD CS5535/CS5536 GPIO support" 1259 depends on X86 || MIPS || COMPILE_TEST 1260 depends on MFD_CS5535 1261 help 1262 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1263 can be used for quite a number of things. The CS5535/6 is found on 1264 AMD Geode and Lemote Yeeloong devices. 1265 1266 If unsure, say N. 1267 1268config GPIO_DA9052 1269 tristate "Dialog DA9052 GPIO" 1270 depends on PMIC_DA9052 1271 help 1272 Say yes here to enable the GPIO driver for the DA9052 chip. 1273 1274config GPIO_DA9055 1275 tristate "Dialog Semiconductor DA9055 GPIO" 1276 depends on MFD_DA9055 1277 help 1278 Say yes here to enable the GPIO driver for the DA9055 chip. 1279 1280 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1281 be controlled by this driver. 1282 1283 If driver is built as a module it will be called gpio-da9055. 1284 1285config GPIO_DLN2 1286 tristate "Diolan DLN2 GPIO support" 1287 depends on MFD_DLN2 1288 select GPIOLIB_IRQCHIP 1289 1290 help 1291 Select this option to enable GPIO driver for the Diolan DLN2 1292 board. 1293 1294 This driver can also be built as a module. If so, the module 1295 will be called gpio-dln2. 1296 1297config HTC_EGPIO 1298 bool "HTC EGPIO support" 1299 depends on ARM 1300 help 1301 This driver supports the CPLD egpio chip present on 1302 several HTC phones. It provides basic support for input 1303 pins, output pins, and IRQs. 1304 1305config GPIO_ELKHARTLAKE 1306 tristate "Intel Elkhart Lake PSE GPIO support" 1307 depends on X86 || COMPILE_TEST 1308 select GPIO_TANGIER 1309 help 1310 Select this option to enable GPIO support for Intel Elkhart Lake 1311 PSE GPIO IP. 1312 1313 To compile this driver as a module, choose M here: the module will 1314 be called gpio-elkhartlake. 1315 1316config GPIO_JANZ_TTL 1317 tristate "Janz VMOD-TTL Digital IO Module" 1318 depends on MFD_JANZ_CMODIO 1319 help 1320 This enables support for the Janz VMOD-TTL Digital IO module. 1321 This driver provides support for driving the pins in output 1322 mode only. Input mode is not supported. 1323 1324config GPIO_KEMPLD 1325 tristate "Kontron ETX / COMexpress GPIO" 1326 depends on MFD_KEMPLD 1327 help 1328 This enables support for the PLD GPIO interface on some Kontron ETX 1329 and COMexpress (ETXexpress) modules. 1330 1331 This driver can also be built as a module. If so, the module will be 1332 called gpio-kempld. 1333 1334config GPIO_LJCA 1335 tristate "INTEL La Jolla Cove Adapter GPIO support" 1336 depends on USB_LJCA 1337 select GPIOLIB_IRQCHIP 1338 default USB_LJCA 1339 help 1340 Select this option to enable GPIO driver for the INTEL 1341 La Jolla Cove Adapter (LJCA) board. 1342 1343 This driver can also be built as a module. If so, the module 1344 will be called gpio-ljca. 1345 1346config GPIO_LP3943 1347 tristate "TI/National Semiconductor LP3943 GPIO expander" 1348 depends on MFD_LP3943 1349 help 1350 GPIO driver for LP3943 MFD. 1351 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1352 Open drain outputs are required for this usage. 1353 1354config GPIO_LP873X 1355 tristate "TI LP873X GPO" 1356 depends on MFD_TI_LP873X 1357 help 1358 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1359 on LP873X PMICs. 1360 1361 This driver can also be built as a module. If so, the module will be 1362 called gpio-lp873x. 1363 1364config GPIO_LP87565 1365 tristate "TI LP87565 GPIO" 1366 depends on MFD_TI_LP87565 1367 help 1368 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1369 on LP87565 PMICs. 1370 1371 This driver can also be built as a module. If so, the module will be 1372 called gpio-lp87565. 1373 1374config GPIO_MADERA 1375 tristate "Cirrus Logic Madera class codecs" 1376 depends on PINCTRL_MADERA 1377 help 1378 Support for GPIOs on Cirrus Logic Madera class codecs. 1379 1380config GPIO_MAX77620 1381 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1382 depends on MFD_MAX77620 1383 select GPIOLIB_IRQCHIP 1384 help 1385 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1386 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1387 driver also provides interrupt support for each of the GPIOs. 1388 Say yes here to enable the max77620 to be used as GPIO controller. 1389 1390config GPIO_MAX77650 1391 tristate "Maxim MAX77650/77651 GPIO support" 1392 depends on MFD_MAX77650 1393 help 1394 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1395 These chips have a single pin that can be configured as GPIO. 1396 1397config GPIO_PALMAS 1398 bool "TI PALMAS series PMICs GPIO" 1399 depends on MFD_PALMAS 1400 help 1401 Select this option to enable GPIO driver for the TI PALMAS 1402 series chip family. 1403 1404config GPIO_PMIC_EIC_SPRD 1405 tristate "Spreadtrum PMIC EIC support" 1406 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1407 depends on OF_GPIO 1408 select GPIOLIB_IRQCHIP 1409 help 1410 Say yes here to support Spreadtrum PMIC EIC device. 1411 1412config GPIO_RC5T583 1413 bool "RICOH RC5T583 GPIO" 1414 depends on MFD_RC5T583 1415 help 1416 Select this option to enable GPIO driver for the Ricoh RC5T583 1417 chip family. 1418 This driver provides the support for driving/reading the GPIO pins 1419 of RC5T583 device through standard GPIO library. 1420 1421config GPIO_SL28CPLD 1422 tristate "Kontron sl28cpld GPIO support" 1423 depends on MFD_SL28CPLD || COMPILE_TEST 1424 select GPIO_REGMAP 1425 select GPIOLIB_IRQCHIP 1426 select REGMAP_IRQ 1427 help 1428 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1429 1430 This driver can also be built as a module. If so, the module will be 1431 called gpio-sl28cpld. 1432 1433config GPIO_STMPE 1434 bool "STMPE GPIOs" 1435 depends on MFD_STMPE 1436 depends on OF_GPIO 1437 select GPIOLIB_IRQCHIP 1438 help 1439 This enables support for the GPIOs found on the STMPE I/O 1440 Expanders. 1441 1442config GPIO_TC3589X 1443 bool "TC3589X GPIOs" 1444 depends on MFD_TC3589X 1445 depends on OF_GPIO 1446 select GPIOLIB_IRQCHIP 1447 help 1448 This enables support for the GPIOs found on the TC3589X 1449 I/O Expander. 1450 1451config GPIO_TIMBERDALE 1452 bool "Support for timberdale GPIO IP" 1453 depends on MFD_TIMBERDALE 1454 help 1455 Add support for the GPIO IP in the timberdale FPGA. 1456 1457config GPIO_TN48M_CPLD 1458 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1459 depends on MFD_TN48M_CPLD 1460 select GPIO_REGMAP 1461 help 1462 This enables support for the GPIOs found on the Delta 1463 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1464 they are input-only or output-only type. 1465 1466 This driver can also be built as a module. If so, the 1467 module will be called gpio-tn48m. 1468 1469config GPIO_TPS65086 1470 tristate "TI TPS65086 GPO" 1471 depends on MFD_TPS65086 1472 help 1473 This driver supports the GPO on TI TPS65086x PMICs. 1474 1475config GPIO_TPS65218 1476 tristate "TPS65218 GPIO" 1477 depends on MFD_TPS65218 1478 help 1479 Select this option to enable GPIO driver for the TPS65218 1480 chip family. 1481 1482config GPIO_TPS65219 1483 tristate "TPS65219 GPIO" 1484 depends on MFD_TPS65219 1485 default MFD_TPS65219 1486 help 1487 Select this option to enable GPIO driver for the TPS65219 chip 1488 family. 1489 GPIO0 is statically configured as either input or output prior to 1490 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting 1491 is statically configured by NVM. GPIO0 can't be used as a generic 1492 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when 1493 MULTI_DEVICE_EN=1. 1494 1495 This driver can also be built as a module. If so, the module will be 1496 called gpio_tps65219. 1497 1498config GPIO_TPS6586X 1499 bool "TPS6586X GPIO" 1500 depends on MFD_TPS6586X 1501 help 1502 Select this option to enable GPIO driver for the TPS6586X 1503 chip family. 1504 1505config GPIO_TPS65910 1506 bool "TPS65910 GPIO" 1507 depends on MFD_TPS65910 1508 help 1509 Select this option to enable GPIO driver for the TPS65910 1510 chip family. 1511 1512config GPIO_TPS65912 1513 tristate "TI TPS65912 GPIO" 1514 depends on MFD_TPS65912 1515 help 1516 This driver supports TPS65912 GPIO chip. 1517 1518config GPIO_TPS68470 1519 tristate "TPS68470 GPIO" 1520 depends on INTEL_SKL_INT3472 1521 help 1522 Select this option to enable GPIO driver for the TPS68470 1523 chip family. 1524 There are 7 GPIOs and few sensor-related GPIOs supported 1525 by the TPS68470. While the 7 GPIOs can be configured as 1526 input or output as appropriate, the sensor related GPIOs 1527 are "output only" GPIOs. 1528 1529config GPIO_TQMX86 1530 tristate "TQ-Systems QTMX86 GPIO" 1531 depends on MFD_TQMX86 || COMPILE_TEST 1532 depends on HAS_IOPORT_MAP 1533 select GPIOLIB_IRQCHIP 1534 help 1535 This driver supports GPIO on the TQMX86 IO controller. 1536 1537config GPIO_TWL4030 1538 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1539 depends on TWL4030_CORE 1540 help 1541 Say yes here to access the GPIO signals of various multi-function 1542 power management chips from Texas Instruments. 1543 1544config GPIO_TWL6040 1545 tristate "TWL6040 GPO" 1546 depends on TWL6040_CORE 1547 help 1548 Say yes here to access the GPO signals of twl6040 1549 audio chip from Texas Instruments. 1550 1551config GPIO_WHISKEY_COVE 1552 tristate "GPIO support for Whiskey Cove PMIC" 1553 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1554 select GPIOLIB_IRQCHIP 1555 help 1556 Support for GPIO pins on Whiskey Cove PMIC. 1557 1558 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1559 inside. 1560 1561 This driver can also be built as a module. If so, the module will be 1562 called gpio-wcove. 1563 1564config GPIO_WM831X 1565 tristate "WM831x GPIOs" 1566 depends on MFD_WM831X 1567 help 1568 Say yes here to access the GPIO signals of WM831x power management 1569 chips from Wolfson Microelectronics. 1570 1571config GPIO_WM8350 1572 tristate "WM8350 GPIOs" 1573 depends on MFD_WM8350 1574 help 1575 Say yes here to access the GPIO signals of WM8350 power management 1576 chips from Wolfson Microelectronics. 1577 1578config GPIO_WM8994 1579 tristate "WM8994 GPIOs" 1580 depends on MFD_WM8994 1581 help 1582 Say yes here to access the GPIO signals of WM8994 audio hub 1583 CODECs from Wolfson Microelectronics. 1584 1585endmenu 1586 1587menu "PCI GPIO expanders" 1588 depends on PCI 1589 1590config GPIO_AMD8111 1591 tristate "AMD 8111 GPIO driver" 1592 depends on X86 || COMPILE_TEST 1593 depends on HAS_IOPORT_MAP 1594 help 1595 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1596 1597 Note that usually system firmware/ACPI handles GPIO pins on their 1598 own and users might easily break their systems with uncareful usage 1599 of this driver! 1600 1601 If unsure, say N 1602 1603config GPIO_BT8XX 1604 tristate "BT8XX GPIO abuser" 1605 depends on VIDEO_BT848=n 1606 help 1607 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1608 as a cheap PCI GPIO card. 1609 1610 This chip can be found on Miro, Hauppauge and STB TV-cards. 1611 1612 The card needs to be physically altered for using it as a 1613 GPIO card. For more information on how to build a GPIO card 1614 from a BT8xx TV card, see the documentation file at 1615 Documentation/driver-api/gpio/bt8xxgpio.rst 1616 1617 If unsure, say N. 1618 1619config GPIO_MERRIFIELD 1620 tristate "Intel Merrifield GPIO support" 1621 depends on X86_INTEL_MID 1622 select GPIO_TANGIER 1623 help 1624 Say Y here to support Intel Merrifield GPIO. 1625 1626config GPIO_MLXBF 1627 tristate "Mellanox BlueField SoC GPIO" 1628 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1629 select GPIO_GENERIC 1630 help 1631 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1632 1633config GPIO_MLXBF2 1634 tristate "Mellanox BlueField 2 SoC GPIO" 1635 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1636 select GPIO_GENERIC 1637 select GPIOLIB_IRQCHIP 1638 help 1639 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1640 1641config GPIO_MLXBF3 1642 tristate "Mellanox BlueField 3 SoC GPIO" 1643 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST 1644 select GPIO_GENERIC 1645 select GPIOLIB_IRQCHIP 1646 help 1647 Say Y if you want GPIO support on Mellanox BlueField 3 SoC. 1648 This GPIO controller supports interrupt handling and enables the 1649 manipulation of certain GPIO pins. 1650 This controller should be used in parallel with pinctrl-mlxbf3 to 1651 control the desired GPIOs. 1652 This driver can also be built as a module called mlxbf3-gpio. 1653 1654config GPIO_ML_IOH 1655 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1656 depends on X86 || COMPILE_TEST 1657 select GENERIC_IRQ_CHIP 1658 help 1659 ML7213 is companion chip for Intel Atom E6xx series. 1660 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1661 Hub) which is for IVI (In-Vehicle Infotainment) use. 1662 This driver can access the IOH's GPIO device. 1663 1664config GPIO_PCH 1665 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1666 depends on X86_32 || MIPS || COMPILE_TEST 1667 select GENERIC_IRQ_CHIP 1668 help 1669 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1670 which is an IOH (Input/Output Hub) for x86 embedded processor. 1671 This driver can access PCH GPIO device. 1672 1673 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1674 Output Hub), ML7223 and ML7831. 1675 ML7223 IOH is for MP (Media Phone) use. 1676 ML7831 IOH is for general purpose use. 1677 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1678 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1679 1680config GPIO_PCI_IDIO_16 1681 tristate "ACCES PCI-IDIO-16 GPIO support" 1682 select REGMAP_MMIO 1683 select GPIO_IDIO_16 1684 help 1685 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1686 generated when any of the inputs change state (low to high or high to 1687 low). Input filter control is not supported by this driver, and the 1688 input filters are deactivated by this driver. 1689 1690config GPIO_PCIE_IDIO_24 1691 tristate "ACCES PCIe-IDIO-24 GPIO support" 1692 select REGMAP_IRQ 1693 select REGMAP_MMIO 1694 select GPIOLIB_IRQCHIP 1695 select GPIO_REGMAP 1696 help 1697 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1698 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1699 when any of the inputs change state (low to high or high to low). 1700 Input filter control is not supported by this driver, and the input 1701 filters are deactivated by this driver. 1702 1703config GPIO_RDC321X 1704 tristate "RDC R-321x GPIO support" 1705 select MFD_CORE 1706 select MFD_RDC321X 1707 help 1708 Support for the RDC R321x SoC GPIOs over southbridge 1709 PCI configuration space. 1710 1711config GPIO_SODAVILLE 1712 bool "Intel Sodaville GPIO support" 1713 depends on X86 && OF 1714 select GPIO_GENERIC 1715 select GENERIC_IRQ_CHIP 1716 help 1717 Say Y here to support Intel Sodaville GPIO. 1718 1719endmenu 1720 1721menu "SPI GPIO expanders" 1722 depends on SPI_MASTER 1723 1724config GPIO_74X164 1725 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1726 depends on OF_GPIO 1727 help 1728 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1729 shift registers. This driver can be used to provide access 1730 to more GPIO outputs. 1731 1732config GPIO_MAX3191X 1733 tristate "Maxim MAX3191x industrial serializer" 1734 select CRC8 1735 help 1736 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1737 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1738 chip to make 8 digital 24V inputs available via SPI. Supports 1739 CRC checksums to guard against electromagnetic interference, 1740 as well as undervoltage and overtemperature detection. 1741 1742config GPIO_MAX7301 1743 tristate "Maxim MAX7301 GPIO expander" 1744 select GPIO_MAX730X 1745 help 1746 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1747 1748config GPIO_MC33880 1749 tristate "Freescale MC33880 high-side/low-side switch" 1750 help 1751 SPI driver for Freescale MC33880 high-side/low-side switch. 1752 This provides GPIO interface supporting inputs and outputs. 1753 1754config GPIO_PISOSR 1755 tristate "Generic parallel-in/serial-out shift register" 1756 help 1757 GPIO driver for SPI compatible parallel-in/serial-out shift 1758 registers. These are input only devices. 1759 1760config GPIO_XRA1403 1761 tristate "EXAR XRA1403 16-bit GPIO expander" 1762 select REGMAP_SPI 1763 help 1764 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1765 1766config GPIO_MOXTET 1767 tristate "Turris Mox Moxtet bus GPIO expander" 1768 depends on MOXTET 1769 help 1770 Say yes here if you are building for the Turris Mox router. 1771 This is the driver needed for configuring the GPIOs via the Moxtet 1772 bus. For example the Mox module with SFP cage needs this driver 1773 so that phylink can use corresponding GPIOs. 1774 1775endmenu 1776 1777menu "USB GPIO expanders" 1778 depends on USB 1779 1780config GPIO_VIPERBOARD 1781 tristate "Viperboard GPIO a & b support" 1782 depends on MFD_VIPERBOARD 1783 help 1784 Say yes here to access the GPIO signals of Nano River 1785 Technologies Viperboard. There are two GPIO chips on the 1786 board: gpioa and gpiob. 1787 See viperboard API specification and Nano 1788 River Tech's viperboard.h for detailed meaning 1789 of the module parameters. 1790 1791endmenu 1792 1793menu "Virtual GPIO drivers" 1794 1795config GPIO_AGGREGATOR 1796 tristate "GPIO Aggregator" 1797 help 1798 Say yes here to enable the GPIO Aggregator, which provides a way to 1799 aggregate existing GPIO lines into a new virtual GPIO chip. 1800 This can serve the following purposes: 1801 - Assign permissions for a collection of GPIO lines to a user, 1802 - Export a collection of GPIO lines to a virtual machine, 1803 - Provide a generic driver for a GPIO-operated device in an 1804 industrial control context, to be operated from userspace using 1805 the GPIO chardev interface. 1806 1807config GPIO_LATCH 1808 tristate "GPIO latch driver" 1809 help 1810 Say yes here to enable a driver for GPIO multiplexers based on latches 1811 connected to other GPIOs. 1812 1813config GPIO_MOCKUP 1814 tristate "GPIO Testing Driver (DEPRECATED)" 1815 select IRQ_SIM 1816 help 1817 This module is DEPRECATED. Please consider using gpio-sim instead. 1818 1819 This enables GPIO Testing driver, which provides a way to test GPIO 1820 subsystem through sysfs (or char device) and debugfs. 1821 User could use it through the script in 1822 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1823 it. 1824 1825config GPIO_VIRTIO 1826 tristate "VirtIO GPIO support" 1827 depends on VIRTIO 1828 select GPIOLIB_IRQCHIP 1829 help 1830 Say Y here to enable guest support for virtio-based GPIO controllers. 1831 1832 These virtual GPIOs can be routed to real GPIOs or attached to 1833 simulators on the host (like QEMU). 1834 1835config GPIO_SIM 1836 tristate "GPIO Simulator Module" 1837 select IRQ_SIM 1838 select CONFIGFS_FS 1839 help 1840 This enables the GPIO simulator - a configfs-based GPIO testing 1841 driver. 1842 1843endmenu 1844 1845endif 1846