1# SPDX-License-Identifier: GPL-2.0-only 2# 3# GPIO infrastructure and drivers 4# 5 6config ARCH_HAVE_CUSTOM_GPIO_H 7 bool 8 help 9 Selecting this config option from the architecture Kconfig allows 10 the architecture to provide a custom asm/gpio.h implementation 11 overriding the default implementations. New uses of this are 12 strongly discouraged. 13 14menuconfig GPIOLIB 15 bool "GPIO Support" 16 help 17 This enables GPIO support through the generic GPIO library. 18 You only need to enable this if you also want to enable 19 one or more of the GPIO drivers below. 20 21 If unsure, say N. 22 23if GPIOLIB 24 25config GPIOLIB_FASTPATH_LIMIT 26 int "Maximum number of GPIOs for fast path" 27 range 32 512 28 default 512 29 help 30 This adjusts the point at which certain APIs will switch from 31 using a stack allocated buffer to a dynamically allocated buffer. 32 33 You shouldn't need to change this unless you really need to 34 optimize either stack space or performance. Change this carefully 35 since setting an incorrect value could cause stack corruption. 36 37config OF_GPIO 38 def_bool y 39 depends on OF 40 depends on HAS_IOMEM 41 42config GPIO_ACPI 43 def_bool y 44 depends on ACPI 45 46config GPIOLIB_IRQCHIP 47 select IRQ_DOMAIN 48 bool 49 50config DEBUG_GPIO 51 bool "Debug GPIO calls" 52 depends on DEBUG_KERNEL 53 help 54 Say Y here to add some extra checks and diagnostics to GPIO calls. 55 These checks help ensure that GPIOs have been properly initialized 56 before they are used, and that sleeping calls are not made from 57 non-sleeping contexts. They can make bitbanged serial protocols 58 slower. The diagnostics help catch the type of setup errors 59 that are most common when setting up new platforms or boards. 60 61config GPIO_SYSFS 62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT 63 depends on SYSFS 64 select GPIO_CDEV # We need to encourage the new ABI 65 help 66 Say Y here to add the legacy sysfs interface for GPIOs. 67 68 This ABI is deprecated. If you want to use GPIO from userspace, 69 use the character device /dev/gpiochipN with the appropriate 70 ioctl() operations instead. 71 72config GPIO_CDEV 73 bool 74 prompt "Character device (/dev/gpiochipN) support" if EXPERT 75 default y 76 help 77 Say Y here to add the character device /dev/gpiochipN interface 78 for GPIOs. The character device allows userspace to control GPIOs 79 using ioctl() operations. 80 81 Only say N if you are sure that the GPIO character device is not 82 required. 83 84 If unsure, say Y. 85 86config GPIO_CDEV_V1 87 bool "Support GPIO ABI Version 1" 88 default y 89 depends on GPIO_CDEV 90 help 91 Say Y here to support version 1 of the GPIO CDEV ABI. 92 93 This ABI version is deprecated. 94 Please use the latest ABI for new developments. 95 96 If unsure, say Y. 97 98config GPIO_GENERIC 99 depends on HAS_IOMEM # Only for IOMEM drivers 100 tristate 101 102config GPIO_REGMAP 103 depends on REGMAP 104 tristate 105 106# put drivers in the right section, in alphabetical order 107 108# This symbol is selected by both I2C and SPI expanders 109config GPIO_MAX730X 110 tristate 111 112menu "Memory mapped GPIO drivers" 113 depends on HAS_IOMEM 114 115config GPIO_74XX_MMIO 116 tristate "GPIO driver for 74xx-ICs with MMIO access" 117 depends on OF_GPIO 118 select GPIO_GENERIC 119 help 120 Say yes here to support GPIO functionality for 74xx-compatible ICs 121 with MMIO access. Compatible models include: 122 1 bit: 741G125 (Input), 741G74 (Output) 123 2 bits: 742G125 (Input), 7474 (Output) 124 4 bits: 74125 (Input), 74175 (Output) 125 6 bits: 74365 (Input), 74174 (Output) 126 8 bits: 74244 (Input), 74273 (Output) 127 16 bits: 741624 (Input), 7416374 (Output) 128 129config GPIO_ALTERA 130 tristate "Altera GPIO" 131 depends on OF_GPIO 132 select GPIOLIB_IRQCHIP 133 help 134 Say Y or M here to build support for the Altera PIO device. 135 136 If driver is built as a module it will be called gpio-altera. 137 138config GPIO_AMDPT 139 tristate "AMD Promontory GPIO support" 140 depends on ACPI 141 select GPIO_GENERIC 142 help 143 Driver for GPIO functionality on Promontory IOHub. 144 Requires ACPI ASL code to enumerate as a platform device. 145 146config GPIO_ASPEED 147 tristate "Aspeed GPIO support" 148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 149 select GPIOLIB_IRQCHIP 150 help 151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 152 153config GPIO_ASPEED_SGPIO 154 bool "Aspeed SGPIO support" 155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 156 select GPIO_GENERIC 157 select GPIOLIB_IRQCHIP 158 help 159 Say Y here to support Aspeed AST2500 SGPIO functionality. 160 161config GPIO_ATH79 162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 163 default y if ATH79 164 depends on ATH79 || COMPILE_TEST 165 select GPIO_GENERIC 166 select GPIOLIB_IRQCHIP 167 help 168 Select this option to enable GPIO driver for 169 Atheros AR71XX/AR724X/AR913X SoC devices. 170 171config GPIO_RASPBERRYPI_EXP 172 tristate "Raspberry Pi 3 GPIO Expander" 173 default RASPBERRYPI_FIRMWARE 174 depends on OF_GPIO 175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 178 help 179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 180 the firmware mailbox to communicate with VideoCore on BCM283x chips. 181 182config GPIO_BCM_KONA 183 bool "Broadcom Kona GPIO" 184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 185 help 186 Turn on GPIO support for Broadcom "Kona" chips. 187 188config GPIO_BCM_XGS_IPROC 189 tristate "BRCM XGS iProc GPIO support" 190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 191 select GPIO_GENERIC 192 select GPIOLIB_IRQCHIP 193 default ARCH_BCM_IPROC 194 help 195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 196 197config GPIO_BRCMSTB 198 tristate "BRCMSTB GPIO support" 199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 201 select GPIO_GENERIC 202 select IRQ_DOMAIN 203 help 204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 205 206config GPIO_CADENCE 207 tristate "Cadence GPIO support" 208 depends on OF_GPIO 209 select GPIO_GENERIC 210 select GPIOLIB_IRQCHIP 211 help 212 Say yes here to enable support for Cadence GPIO controller. 213 214config GPIO_CLPS711X 215 tristate "CLPS711X GPIO support" 216 depends on ARCH_CLPS711X || COMPILE_TEST 217 select GPIO_GENERIC 218 help 219 Say yes here to support GPIO on CLPS711X SoCs. 220 221config GPIO_DAVINCI 222 bool "TI Davinci/Keystone GPIO support" 223 default y if ARCH_DAVINCI 224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 225 help 226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 227 228config GPIO_DWAPB 229 tristate "Synopsys DesignWare APB GPIO driver" 230 select GPIO_GENERIC 231 select GPIOLIB_IRQCHIP 232 help 233 Say Y or M here to build support for the Synopsys DesignWare APB 234 GPIO block. 235 236config GPIO_EIC_SPRD 237 tristate "Spreadtrum EIC support" 238 depends on ARCH_SPRD || COMPILE_TEST 239 depends on OF_GPIO 240 select GPIOLIB_IRQCHIP 241 help 242 Say yes here to support Spreadtrum EIC device. 243 244config GPIO_EM 245 tristate "Emma Mobile GPIO" 246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 247 help 248 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 249 250config GPIO_EN7523 251 tristate "Airoha GPIO support" 252 depends on ARCH_AIROHA 253 default ARCH_AIROHA 254 select GPIO_GENERIC 255 select GPIOLIB_IRQCHIP 256 help 257 Say Y or M here to support the GPIO controller block on the 258 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 259 260config GPIO_EP93XX 261 def_bool y 262 depends on ARCH_EP93XX 263 select GPIO_GENERIC 264 select GPIOLIB_IRQCHIP 265 266config GPIO_EXAR 267 tristate "Support for GPIO pins on XR17V352/354/358" 268 depends on SERIAL_8250_EXAR 269 select REGMAP_MMIO 270 help 271 Selecting this option will enable handling of GPIO pins present 272 on Exar XR17V352/354/358 chips. 273 274config GPIO_GE_FPGA 275 bool "GE FPGA based GPIO" 276 depends on GE_FPGA 277 select GPIO_GENERIC 278 help 279 Support for common GPIO functionality provided on some GE Single Board 280 Computers. 281 282 This driver provides basic support (configure as input or output, read 283 and write pin state) for GPIO implemented in a number of GE single 284 board computers. 285 286config GPIO_FTGPIO010 287 bool "Faraday FTGPIO010 GPIO" 288 depends on OF_GPIO 289 select GPIO_GENERIC 290 select GPIOLIB_IRQCHIP 291 default (ARCH_GEMINI || ARCH_MOXART) 292 help 293 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 294 Cortina systems Gemini platforms, Moxa ART and others. 295 296config GPIO_GENERIC_PLATFORM 297 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 298 select GPIO_GENERIC 299 help 300 Say yes here to support basic platform_device memory-mapped GPIO controllers. 301 302config GPIO_GRGPIO 303 tristate "Aeroflex Gaisler GRGPIO support" 304 depends on OF_GPIO 305 select GPIO_GENERIC 306 select IRQ_DOMAIN 307 help 308 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 309 VHDL IP core library. 310 311config GPIO_HISI 312 tristate "HiSilicon GPIO controller driver" 313 depends on (ARM64 && ACPI) || COMPILE_TEST 314 select GPIO_GENERIC 315 select GPIOLIB_IRQCHIP 316 help 317 Say Y or M here to build support for the HiSilicon GPIO controller 318 driver GPIO block. 319 This GPIO controller supports double-edge interrupt and multi-core 320 concurrent access. 321 322config GPIO_HLWD 323 tristate "Nintendo Wii (Hollywood) GPIO" 324 depends on OF_GPIO 325 select GPIO_GENERIC 326 select GPIOLIB_IRQCHIP 327 help 328 Select this to support the GPIO controller of the Nintendo Wii. 329 330 If unsure, say N. 331 332config GPIO_ICH 333 tristate "Intel ICH GPIO" 334 depends on X86 335 depends on LPC_ICH 336 help 337 Say yes here to support the GPIO functionality of a number of Intel 338 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 339 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 340 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 341 342 If unsure, say N. 343 344config GPIO_IOP 345 tristate "Intel IOP GPIO" 346 depends on ARCH_IOP32X || COMPILE_TEST 347 select GPIO_GENERIC 348 help 349 Say yes here to support the GPIO functionality of a number of Intel 350 IOP32X or IOP33X series of chips. 351 352 If unsure, say N. 353 354config GPIO_IXP4XX 355 bool "Intel IXP4xx GPIO" 356 depends on ARCH_IXP4XX 357 depends on OF 358 select GPIO_GENERIC 359 select GPIOLIB_IRQCHIP 360 select IRQ_DOMAIN_HIERARCHY 361 help 362 Say yes here to support the GPIO functionality of a number of Intel 363 IXP4xx series of chips. 364 365 If unsure, say N. 366 367config GPIO_LOGICVC 368 tristate "Xylon LogiCVC GPIO support" 369 depends on MFD_SYSCON && OF 370 help 371 Say yes here to support GPIO functionality of the Xylon LogiCVC 372 programmable logic block. 373 374config GPIO_LOONGSON 375 bool "Loongson-2/3 GPIO support" 376 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 377 help 378 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 379 380config GPIO_LPC18XX 381 tristate "NXP LPC18XX/43XX GPIO support" 382 default y if ARCH_LPC18XX 383 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 384 select IRQ_DOMAIN_HIERARCHY 385 help 386 Select this option to enable GPIO driver for 387 NXP LPC18XX/43XX devices. 388 389config GPIO_LPC32XX 390 tristate "NXP LPC32XX GPIO support" 391 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 392 help 393 Select this option to enable GPIO driver for 394 NXP LPC32XX devices. 395 396config GPIO_MB86S7X 397 tristate "GPIO support for Fujitsu MB86S7x Platforms" 398 help 399 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 400 401config GPIO_MENZ127 402 tristate "MEN 16Z127 GPIO support" 403 depends on MCB 404 select GPIO_GENERIC 405 help 406 Say yes here to support the MEN 16Z127 GPIO Controller. 407 408config GPIO_MM_LANTIQ 409 bool "Lantiq Memory mapped GPIOs" 410 depends on LANTIQ && SOC_XWAY 411 help 412 This enables support for memory mapped GPIOs on the External Bus Unit 413 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 414 created by attaching a 16-bit latch to the bus. 415 416config GPIO_MPC5200 417 def_bool y 418 depends on PPC_MPC52xx 419 420config GPIO_MPC8XXX 421 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 422 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 423 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 424 COMPILE_TEST 425 select GPIO_GENERIC 426 select IRQ_DOMAIN 427 help 428 Say Y here if you're going to use hardware that connects to the 429 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 430 431config GPIO_MT7621 432 bool "Mediatek MT7621 GPIO Support" 433 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 434 depends on OF_GPIO 435 select GPIO_GENERIC 436 select GPIOLIB_IRQCHIP 437 help 438 Say yes here to support the Mediatek MT7621 SoC GPIO device. 439 440config GPIO_MVEBU 441 def_bool y 442 depends on PLAT_ORION || ARCH_MVEBU 443 depends on OF_GPIO 444 select GENERIC_IRQ_CHIP 445 select REGMAP_MMIO 446 447config GPIO_MXC 448 tristate "i.MX GPIO support" 449 depends on ARCH_MXC || COMPILE_TEST 450 select GPIO_GENERIC 451 select GENERIC_IRQ_CHIP 452 453config GPIO_MXS 454 bool "Freescale MXS GPIO support" if COMPILE_TEST 455 depends on ARCH_MXS || COMPILE_TEST 456 default y if ARCH_MXS 457 select GPIO_GENERIC 458 select GENERIC_IRQ_CHIP 459 460config GPIO_OCTEON 461 tristate "Cavium OCTEON GPIO" 462 depends on CAVIUM_OCTEON_SOC 463 default y 464 help 465 Say yes here to support the on-chip GPIO lines on the OCTEON 466 family of SOCs. 467 468config GPIO_OMAP 469 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 470 default y if ARCH_OMAP 471 depends on ARM 472 select GENERIC_IRQ_CHIP 473 select GPIOLIB_IRQCHIP 474 help 475 Say yes here to enable GPIO support for TI OMAP SoCs. 476 477config GPIO_PL061 478 tristate "PrimeCell PL061 GPIO support" 479 depends on ARM_AMBA 480 select IRQ_DOMAIN 481 select GPIOLIB_IRQCHIP 482 help 483 Say yes here to support the PrimeCell PL061 GPIO device. 484 485config GPIO_PMIC_EIC_SPRD 486 tristate "Spreadtrum PMIC EIC support" 487 depends on MFD_SC27XX_PMIC || COMPILE_TEST 488 depends on OF_GPIO 489 select GPIOLIB_IRQCHIP 490 help 491 Say yes here to support Spreadtrum PMIC EIC device. 492 493config GPIO_PXA 494 bool "PXA GPIO support" 495 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 496 help 497 Say yes here to support the PXA GPIO device. 498 499config GPIO_RCAR 500 tristate "Renesas R-Car and RZ/G GPIO support" 501 depends on ARCH_RENESAS || COMPILE_TEST 502 select GPIOLIB_IRQCHIP 503 help 504 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 505 506config GPIO_RDA 507 bool "RDA Micro GPIO controller support" 508 depends on ARCH_RDA || COMPILE_TEST 509 depends on OF_GPIO 510 select GPIO_GENERIC 511 select GPIOLIB_IRQCHIP 512 help 513 Say Y here to support RDA Micro GPIO controller. 514 515config GPIO_REALTEK_OTTO 516 tristate "Realtek Otto GPIO support" 517 depends on MACH_REALTEK_RTL 518 default MACH_REALTEK_RTL 519 select GPIO_GENERIC 520 select GPIOLIB_IRQCHIP 521 help 522 The GPIO controller on the Otto MIPS platform supports up to two 523 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 524 are grouped in four 8-bit wide ports. 525 526 When built as a module, the module will be called realtek_otto_gpio. 527 528config GPIO_REG 529 bool 530 help 531 A 32-bit single register GPIO fixed in/out implementation. This 532 can be used to represent any register as a set of GPIO signals. 533 534config GPIO_ROCKCHIP 535 tristate "Rockchip GPIO support" 536 depends on ARCH_ROCKCHIP || COMPILE_TEST 537 select GENERIC_IRQ_CHIP 538 select GPIOLIB_IRQCHIP 539 default ARCH_ROCKCHIP 540 help 541 Say yes here to support GPIO on Rockchip SoCs. 542 543config GPIO_SAMA5D2_PIOBU 544 tristate "SAMA5D2 PIOBU GPIO support" 545 depends on MFD_SYSCON 546 depends on OF_GPIO 547 depends on ARCH_AT91 || COMPILE_TEST 548 select GPIO_SYSCON 549 help 550 Say yes here to use the PIOBU pins as GPIOs. 551 552 PIOBU pins on the SAMA5D2 can be used as GPIOs. 553 The difference from regular GPIOs is that they 554 maintain their value during backup/self-refresh. 555 556config GPIO_SIFIVE 557 bool "SiFive GPIO support" 558 depends on OF_GPIO 559 select IRQ_DOMAIN_HIERARCHY 560 select GPIO_GENERIC 561 select GPIOLIB_IRQCHIP 562 select REGMAP_MMIO 563 help 564 Say yes here to support the GPIO device on SiFive SoCs. 565 566config GPIO_SIOX 567 tristate "SIOX GPIO support" 568 depends on SIOX 569 select GPIOLIB_IRQCHIP 570 help 571 Say yes here to support SIOX I/O devices. These are units connected 572 via a SIOX bus and have a number of fixed-direction I/O lines. 573 574config GPIO_SNPS_CREG 575 bool "Synopsys GPIO via CREG (Control REGisters) driver" 576 depends on ARC || COMPILE_TEST 577 depends on OF_GPIO 578 help 579 This driver supports GPIOs via CREG on various Synopsys SoCs. 580 This is a single-register MMIO GPIO driver for complex cases 581 where only several fields in register belong to GPIO lines and 582 each GPIO line owns a field with different length and on/off value. 583 584config GPIO_SPEAR_SPICS 585 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 586 depends on PLAT_SPEAR 587 select GENERIC_IRQ_CHIP 588 help 589 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 590 591config GPIO_SPRD 592 tristate "Spreadtrum GPIO support" 593 depends on ARCH_SPRD || COMPILE_TEST 594 depends on OF_GPIO 595 select GPIOLIB_IRQCHIP 596 help 597 Say yes here to support Spreadtrum GPIO device. 598 599config GPIO_STA2X11 600 bool "STA2x11/ConneXt GPIO support" 601 depends on MFD_STA2X11 602 select GENERIC_IRQ_CHIP 603 help 604 Say yes here to support the STA2x11/ConneXt GPIO device. 605 The GPIO module has 128 GPIO pins with alternate functions. 606 607config GPIO_STP_XWAY 608 bool "XWAY STP GPIOs" 609 depends on SOC_XWAY || COMPILE_TEST 610 depends on OF_GPIO 611 help 612 This enables support for the Serial To Parallel (STP) unit found on 613 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 614 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 615 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 616 phy status. 617 618config GPIO_SYSCON 619 tristate "GPIO based on SYSCON" 620 depends on MFD_SYSCON && OF 621 help 622 Say yes here to support GPIO functionality though SYSCON driver. 623 624config GPIO_TB10X 625 bool 626 select GPIO_GENERIC 627 select GENERIC_IRQ_CHIP 628 select OF_GPIO 629 630config GPIO_TEGRA 631 tristate "NVIDIA Tegra GPIO support" 632 default ARCH_TEGRA 633 depends on ARCH_TEGRA || COMPILE_TEST 634 depends on OF_GPIO 635 select GPIOLIB_IRQCHIP 636 select IRQ_DOMAIN_HIERARCHY 637 help 638 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 639 640config GPIO_TEGRA186 641 tristate "NVIDIA Tegra186 GPIO support" 642 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 643 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 644 depends on OF_GPIO 645 select GPIOLIB_IRQCHIP 646 select IRQ_DOMAIN_HIERARCHY 647 help 648 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 649 650config GPIO_TS4800 651 tristate "TS-4800 DIO blocks and compatibles" 652 depends on OF_GPIO 653 depends on SOC_IMX51 || COMPILE_TEST 654 select GPIO_GENERIC 655 help 656 This driver support TS-4800 FPGA GPIO controllers. 657 658config GPIO_THUNDERX 659 tristate "Cavium ThunderX/OCTEON-TX GPIO" 660 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 661 depends on PCI_MSI 662 select GPIOLIB_IRQCHIP 663 select IRQ_DOMAIN_HIERARCHY 664 select IRQ_FASTEOI_HIERARCHY_HANDLERS 665 help 666 Say yes here to support the on-chip GPIO lines on the ThunderX 667 and OCTEON-TX families of SoCs. 668 669config GPIO_UNIPHIER 670 tristate "UniPhier GPIO support" 671 depends on ARCH_UNIPHIER || COMPILE_TEST 672 depends on OF_GPIO 673 select IRQ_DOMAIN_HIERARCHY 674 help 675 Say yes here to support UniPhier GPIOs. 676 677config GPIO_VF610 678 def_bool y 679 depends on ARCH_MXC 680 select GPIOLIB_IRQCHIP 681 help 682 Say yes here to support i.MX or Vybrid vf610 GPIOs. 683 684config GPIO_VISCONTI 685 tristate "Toshiba Visconti GPIO support" 686 depends on ARCH_VISCONTI || COMPILE_TEST 687 depends on OF_GPIO 688 select GPIOLIB_IRQCHIP 689 select GPIO_GENERIC 690 select IRQ_DOMAIN_HIERARCHY 691 help 692 Say yes here to support GPIO on Tohisba Visconti. 693 694config GPIO_VX855 695 tristate "VIA VX855/VX875 GPIO" 696 depends on (X86 || COMPILE_TEST) && PCI 697 select MFD_CORE 698 select MFD_VX855 699 help 700 Support access to the VX855/VX875 GPIO lines through the GPIO library. 701 702 This driver provides common support for accessing the device. 703 Additional drivers must be enabled in order to use the 704 functionality of the device. 705 706config GPIO_WCD934X 707 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 708 depends on MFD_WCD934X && OF_GPIO 709 help 710 This driver is to support GPIO block found on the Qualcomm Technologies 711 Inc WCD9340/WCD9341 Audio Codec. 712 713config GPIO_XGENE 714 bool "APM X-Gene GPIO controller support" 715 depends on ARM64 && OF_GPIO 716 help 717 This driver is to support the GPIO block within the APM X-Gene SoC 718 platform's generic flash controller. The GPIO pins are muxed with 719 the generic flash controller's address and data pins. Say yes 720 here to enable the GFC GPIO functionality. 721 722config GPIO_XGENE_SB 723 tristate "APM X-Gene GPIO standby controller support" 724 depends on (ARCH_XGENE || COMPILE_TEST) 725 select GPIO_GENERIC 726 select GPIOLIB_IRQCHIP 727 select IRQ_DOMAIN_HIERARCHY 728 help 729 This driver supports the GPIO block within the APM X-Gene 730 Standby Domain. Say yes here to enable the GPIO functionality. 731 732config GPIO_XILINX 733 tristate "Xilinx GPIO support" 734 select GPIOLIB_IRQCHIP 735 depends on OF_GPIO 736 help 737 Say yes here to support the Xilinx FPGA GPIO device. 738 739config GPIO_XLP 740 tristate "Cavium ThunderX2 GPIO support" 741 depends on ARCH_THUNDER2 || COMPILE_TEST 742 select GPIOLIB_IRQCHIP 743 help 744 This driver provides support for GPIO interface on Cavium's ThunderX2 745 CN99XX SoCs (Originally from Netlogic XLP). 746 747 If unsure, say N. 748 749config GPIO_XTENSA 750 bool "Xtensa GPIO32 support" 751 depends on XTENSA 752 depends on HAVE_XTENSA_GPIO32 753 depends on !SMP 754 help 755 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 756 and EXPSTATE (output) ports. 757 758config GPIO_ZEVIO 759 bool "LSI ZEVIO SoC memory mapped GPIOs" 760 depends on ARM && OF_GPIO 761 help 762 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 763 764config GPIO_ZYNQ 765 tristate "Xilinx Zynq GPIO support" 766 depends on ARCH_ZYNQ || ARCH_ZYNQMP 767 select GPIOLIB_IRQCHIP 768 help 769 Say yes here to support Xilinx Zynq GPIO controller. 770 771config GPIO_ZYNQMP_MODEPIN 772 tristate "ZynqMP ps-mode pin GPIO configuration driver" 773 depends on ZYNQMP_FIRMWARE 774 default ZYNQMP_FIRMWARE 775 help 776 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 777 driver. 778 779 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 780 is 4-bits boot mode pins. It sets and gets the status of 781 the ps-mode pin. Every pin can be configured as input/output. 782 783config GPIO_LOONGSON1 784 tristate "Loongson1 GPIO support" 785 depends on MACH_LOONGSON32 786 select GPIO_GENERIC 787 help 788 Say Y or M here to support GPIO on Loongson1 SoCs. 789 790config GPIO_AMD_FCH 791 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 792 help 793 This option enables driver for GPIO on AMD's Fusion Controller Hub, 794 as found on G-series SOCs (e.g. GX-412TC). 795 796 Note: This driver doesn't register itself automatically, as it 797 needs to be provided with platform-specific configuration. 798 (See e.g. CONFIG_PCENGINES_APU2.) 799 800config GPIO_MSC313 801 bool "MStar MSC313 GPIO support" 802 depends on ARCH_MSTARV7 803 default ARCH_MSTARV7 804 select GPIOLIB_IRQCHIP 805 select IRQ_DOMAIN_HIERARCHY 806 help 807 Say Y here to support the main GPIO block on MStar/SigmaStar 808 ARMv7-based SoCs. 809 810config GPIO_IDT3243X 811 tristate "IDT 79RC3243X GPIO support" 812 depends on MIKROTIK_RB532 || COMPILE_TEST 813 select GPIO_GENERIC 814 select GPIOLIB_IRQCHIP 815 help 816 Select this option to enable GPIO driver for 817 IDT 79RC3243X-based devices like Mikrotik RB532. 818 819 To compile this driver as a module, choose M here: the module will 820 be called gpio-idt3243x. 821 822endmenu 823 824menu "Port-mapped I/O GPIO drivers" 825 depends on X86 # Unconditional I/O space access 826 827config GPIO_I8255 828 tristate 829 help 830 Enables support for the i8255 interface library functions. The i8255 831 interface library provides functions to facilitate communication with 832 interfaces compatible with the venerable Intel 8255 Programmable 833 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 834 in the early 1970s but compatible interfaces are nowadays typically 835 found embedded in larger VLSI processing chips and FPGA components. 836 837 If built as a module its name will be gpio-i8255. 838 839config GPIO_104_DIO_48E 840 tristate "ACCES 104-DIO-48E GPIO support" 841 depends on PC104 842 select ISA_BUS_API 843 select GPIOLIB_IRQCHIP 844 select GPIO_I8255 845 help 846 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 847 104-DIO-24E). The base port addresses for the devices may be 848 configured via the base module parameter. The interrupt line numbers 849 for the devices may be configured via the irq module parameter. 850 851config GPIO_104_IDIO_16 852 tristate "ACCES 104-IDIO-16 GPIO support" 853 depends on PC104 854 select ISA_BUS_API 855 select GPIOLIB_IRQCHIP 856 help 857 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 858 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 859 base port addresses for the devices may be configured via the base 860 module parameter. The interrupt line numbers for the devices may be 861 configured via the irq module parameter. 862 863config GPIO_104_IDI_48 864 tristate "ACCES 104-IDI-48 GPIO support" 865 depends on PC104 866 select ISA_BUS_API 867 select GPIOLIB_IRQCHIP 868 select GPIO_I8255 869 help 870 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 871 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 872 the devices may be configured via the base module parameter. The 873 interrupt line numbers for the devices may be configured via the irq 874 module parameter. 875 876config GPIO_F7188X 877 tristate "Fintek and Nuvoton Super-I/O GPIO support" 878 help 879 This option enables support for GPIOs found on Fintek Super-I/O 880 chips F71869, F71869A, F71882FG, F71889F and F81866. 881 As well as Nuvoton Super-I/O chip NCT6116D. 882 883 To compile this driver as a module, choose M here: the module will 884 be called f7188x-gpio. 885 886config GPIO_GPIO_MM 887 tristate "Diamond Systems GPIO-MM GPIO support" 888 depends on PC104 889 select ISA_BUS_API 890 select GPIO_I8255 891 help 892 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 893 894 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 895 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 896 support for these 48 channels of digital I/O. 897 898 The base port addresses for the devices may be configured via the base 899 array module parameter. 900 901config GPIO_IT87 902 tristate "IT87xx GPIO support" 903 help 904 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 905 906 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 907 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 908 well. 909 910 To compile this driver as a module, choose M here: the module will 911 be called gpio_it87. 912 913config GPIO_SCH 914 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 915 depends on (X86 || COMPILE_TEST) && ACPI 916 depends on LPC_SCH 917 select GPIOLIB_IRQCHIP 918 help 919 Say yes here to support GPIO interface on Intel Poulsbo SCH, 920 Intel Tunnel Creek processor, Intel Centerton processor or 921 Intel Quark X1000 SoC. 922 923 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 924 powered by the core power rail and are turned off during sleep 925 modes (S3 and higher). The remaining four GPIOs are powered by 926 the Intel SCH suspend power supply. These GPIOs remain 927 active during S3. The suspend-powered GPIOs can be used to wake the 928 system from the Suspend-to-RAM state. 929 930 The Intel Tunnel Creek processor has 5 GPIOs powered by the 931 core power rail and 9 from suspend power supply. 932 933 The Intel Centerton processor has a total of 30 GPIO pins. 934 Twenty-one are powered by the core power rail and 9 from the 935 suspend power supply. 936 937 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 938 power well and 6 from the suspend power well. 939 940config GPIO_SCH311X 941 tristate "SMSC SCH311x SuperI/O GPIO" 942 help 943 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 944 SCH3116 "Super I/O" chipsets. 945 946 To compile this driver as a module, choose M here: the module will 947 be called gpio-sch311x. 948 949config GPIO_TS5500 950 tristate "TS-5500 DIO blocks and compatibles" 951 depends on TS5500 || COMPILE_TEST 952 help 953 This driver supports Digital I/O exposed by pin blocks found on some 954 Technologic Systems platforms. It includes, but is not limited to, 3 955 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 956 LCD port. 957 958config GPIO_WINBOND 959 tristate "Winbond Super I/O GPIO support" 960 select ISA_BUS_API 961 help 962 This option enables support for GPIOs found on Winbond Super I/O 963 chips. 964 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 965 supported. 966 967 You will need to provide a module parameter "gpios", or a 968 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 969 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 970 971 To compile this driver as a module, choose M here: the module will 972 be called gpio-winbond. 973 974config GPIO_WS16C48 975 tristate "WinSystems WS16C48 GPIO support" 976 select ISA_BUS_API 977 select GPIOLIB_IRQCHIP 978 help 979 Enables GPIO support for the WinSystems WS16C48. The base port 980 addresses for the devices may be configured via the base module 981 parameter. The interrupt line numbers for the devices may be 982 configured via the irq module parameter. 983 984endmenu 985 986menu "I2C GPIO expanders" 987 depends on I2C 988 989config GPIO_ADP5588 990 tristate "ADP5588 I2C GPIO expander" 991 help 992 This option enables support for 18 GPIOs found 993 on Analog Devices ADP5588 GPIO Expanders. 994 995config GPIO_ADP5588_IRQ 996 bool "Interrupt controller support for ADP5588" 997 depends on GPIO_ADP5588=y 998 select GPIOLIB_IRQCHIP 999 help 1000 Say yes here to enable the adp5588 to be used as an interrupt 1001 controller. It requires the driver to be built in the kernel. 1002 1003config GPIO_ADNP 1004 tristate "Avionic Design N-bit GPIO expander" 1005 depends on OF_GPIO 1006 select GPIOLIB_IRQCHIP 1007 help 1008 This option enables support for N GPIOs found on Avionic Design 1009 I2C GPIO expanders. The register space will be extended by powers 1010 of two, so the controller will need to accommodate for that. For 1011 example: if a controller provides 48 pins, 6 registers will be 1012 enough to represent all pins, but the driver will assume a 1013 register layout for 64 pins (8 registers). 1014 1015config GPIO_GW_PLD 1016 tristate "Gateworks PLD GPIO Expander" 1017 depends on OF_GPIO 1018 help 1019 Say yes here to provide access to the Gateworks I2C PLD GPIO 1020 Expander. This is used at least on the Cambria GW2358-4. 1021 1022config GPIO_MAX7300 1023 tristate "Maxim MAX7300 GPIO expander" 1024 select GPIO_MAX730X 1025 help 1026 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1027 1028config GPIO_MAX732X 1029 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1030 help 1031 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1032 Port Expanders. Each IO port on these chips has a fixed role of 1033 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1034 Input and Output (designed by 'P'). The combinations are listed 1035 below: 1036 1037 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1038 max7322 (4I4O), max7323 (4P4O) 1039 1040 16 bits: max7324 (8I8O), max7325 (8P8O), 1041 max7326 (4I12O), max7327 (4P12O) 1042 1043 Board setup code must specify the model to use, and the start 1044 number for these GPIOs. 1045 1046config GPIO_MAX732X_IRQ 1047 bool "Interrupt controller support for MAX732x" 1048 depends on GPIO_MAX732X=y 1049 select GPIOLIB_IRQCHIP 1050 help 1051 Say yes here to enable the max732x to be used as an interrupt 1052 controller. It requires the driver to be built in the kernel. 1053 1054config GPIO_PCA953X 1055 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1056 select REGMAP_I2C 1057 help 1058 Say yes here to provide access to several register-oriented 1059 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1060 models include: 1061 1062 4 bits: pca9536, pca9537 1063 1064 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1065 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1066 1067 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1068 tca6416 1069 1070 24 bits: tca6424 1071 1072 40 bits: pca9505, pca9698 1073 1074config GPIO_PCA953X_IRQ 1075 bool "Interrupt controller support for PCA953x" 1076 depends on GPIO_PCA953X 1077 select GPIOLIB_IRQCHIP 1078 help 1079 Say yes here to enable the pca953x to be used as an interrupt 1080 controller. 1081 1082config GPIO_PCA9570 1083 tristate "PCA9570 4-Bit I2C GPO expander" 1084 help 1085 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1086 1087 To compile this driver as a module, choose M here: the module will 1088 be called gpio-pca9570. 1089 1090config GPIO_PCF857X 1091 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1092 select GPIOLIB_IRQCHIP 1093 select IRQ_DOMAIN 1094 help 1095 Say yes here to provide access to most "quasi-bidirectional" I2C 1096 GPIO expanders used for additional digital outputs or inputs. 1097 Most of these parts are from NXP, though TI is a second source for 1098 some of them. Compatible models include: 1099 1100 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1101 pca9670, pca9672, pca9674, pca9674a, 1102 max7328, max7329 1103 1104 16 bits: pcf8575, pcf8575c, pca8575, 1105 pca9671, pca9673, pca9675 1106 1107 Your board setup code will need to declare the expanders in 1108 use, and assign numbers to the GPIOs they expose. Those GPIOs 1109 can then be used from drivers and other kernel code, just like 1110 other GPIOs, but only accessible from task contexts. 1111 1112 This driver provides an in-kernel interface to those GPIOs using 1113 platform-neutral GPIO calls. 1114 1115config GPIO_TPIC2810 1116 tristate "TPIC2810 8-Bit I2C GPO expander" 1117 help 1118 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1119 1120 To compile this driver as a module, choose M here: the module will 1121 be called gpio-tpic2810. 1122 1123config GPIO_TS4900 1124 tristate "Technologic Systems FPGA I2C GPIO" 1125 depends on SOC_IMX6 || COMPILE_TEST 1126 select REGMAP_I2C 1127 help 1128 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1129 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1130 1131endmenu 1132 1133menu "MFD GPIO expanders" 1134 1135config GPIO_ADP5520 1136 tristate "GPIO Support for ADP5520 PMIC" 1137 depends on PMIC_ADP5520 1138 help 1139 This option enables support for on-chip GPIO found 1140 on Analog Devices ADP5520 PMICs. 1141 1142config GPIO_ALTERA_A10SR 1143 tristate "Altera Arria10 System Resource GPIO" 1144 depends on MFD_ALTERA_A10SR 1145 help 1146 Driver for Arria10 Development Kit GPIO expansion which 1147 includes reads of pushbuttons and DIP switches as well 1148 as writes to LEDs. 1149 1150config GPIO_ARIZONA 1151 tristate "Wolfson Microelectronics Arizona class devices" 1152 depends on MFD_ARIZONA 1153 help 1154 Support for GPIOs on Wolfson Arizona class devices. 1155 1156config GPIO_BD71815 1157 tristate "ROHM BD71815 PMIC GPIO support" 1158 depends on MFD_ROHM_BD71828 1159 help 1160 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1161 available on the ROHM PMIC. 1162 1163 This driver can also be built as a module. If so, the module 1164 will be called gpio-bd71815. 1165 1166config GPIO_BD71828 1167 tristate "ROHM BD71828 GPIO support" 1168 depends on MFD_ROHM_BD71828 1169 help 1170 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1171 available on the ROHM PMIC in total. The GPIOs are limited to 1172 outputs only and pins must be configured to GPIO outputs by 1173 OTP. Enable this only if you want to use these pins as outputs. 1174 1175 This driver can also be built as a module. If so, the module 1176 will be called gpio-bd71828. 1177 1178config GPIO_BD9571MWV 1179 tristate "ROHM BD9571 GPIO support" 1180 depends on MFD_BD9571MWV 1181 help 1182 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1183 available on the ROHM PMIC in total, both of which can also 1184 generate interrupts. 1185 1186 This driver can also be built as a module. If so, the module 1187 will be called gpio-bd9571mwv. 1188 1189config GPIO_CRYSTAL_COVE 1190 tristate "GPIO support for Crystal Cove PMIC" 1191 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1192 select GPIOLIB_IRQCHIP 1193 help 1194 Support for GPIO pins on Crystal Cove PMIC. 1195 1196 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1197 inside. 1198 1199 This driver can also be built as a module. If so, the module will be 1200 called gpio-crystalcove. 1201 1202config GPIO_CS5535 1203 tristate "AMD CS5535/CS5536 GPIO support" 1204 depends on X86 || MIPS || COMPILE_TEST 1205 depends on MFD_CS5535 1206 help 1207 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1208 can be used for quite a number of things. The CS5535/6 is found on 1209 AMD Geode and Lemote Yeeloong devices. 1210 1211 If unsure, say N. 1212 1213config GPIO_DA9052 1214 tristate "Dialog DA9052 GPIO" 1215 depends on PMIC_DA9052 1216 help 1217 Say yes here to enable the GPIO driver for the DA9052 chip. 1218 1219config GPIO_DA9055 1220 tristate "Dialog Semiconductor DA9055 GPIO" 1221 depends on MFD_DA9055 1222 help 1223 Say yes here to enable the GPIO driver for the DA9055 chip. 1224 1225 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1226 be controlled by this driver. 1227 1228 If driver is built as a module it will be called gpio-da9055. 1229 1230config GPIO_DLN2 1231 tristate "Diolan DLN2 GPIO support" 1232 depends on MFD_DLN2 1233 select GPIOLIB_IRQCHIP 1234 1235 help 1236 Select this option to enable GPIO driver for the Diolan DLN2 1237 board. 1238 1239 This driver can also be built as a module. If so, the module 1240 will be called gpio-dln2. 1241 1242config HTC_EGPIO 1243 bool "HTC EGPIO support" 1244 depends on ARM 1245 help 1246 This driver supports the CPLD egpio chip present on 1247 several HTC phones. It provides basic support for input 1248 pins, output pins, and IRQs. 1249 1250config GPIO_JANZ_TTL 1251 tristate "Janz VMOD-TTL Digital IO Module" 1252 depends on MFD_JANZ_CMODIO 1253 help 1254 This enables support for the Janz VMOD-TTL Digital IO module. 1255 This driver provides support for driving the pins in output 1256 mode only. Input mode is not supported. 1257 1258config GPIO_KEMPLD 1259 tristate "Kontron ETX / COMexpress GPIO" 1260 depends on MFD_KEMPLD 1261 help 1262 This enables support for the PLD GPIO interface on some Kontron ETX 1263 and COMexpress (ETXexpress) modules. 1264 1265 This driver can also be built as a module. If so, the module will be 1266 called gpio-kempld. 1267 1268config GPIO_LP3943 1269 tristate "TI/National Semiconductor LP3943 GPIO expander" 1270 depends on MFD_LP3943 1271 help 1272 GPIO driver for LP3943 MFD. 1273 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1274 Open drain outputs are required for this usage. 1275 1276config GPIO_LP873X 1277 tristate "TI LP873X GPO" 1278 depends on MFD_TI_LP873X 1279 help 1280 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1281 on LP873X PMICs. 1282 1283 This driver can also be built as a module. If so, the module will be 1284 called gpio-lp873x. 1285 1286config GPIO_LP87565 1287 tristate "TI LP87565 GPIO" 1288 depends on MFD_TI_LP87565 1289 help 1290 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1291 on LP87565 PMICs. 1292 1293 This driver can also be built as a module. If so, the module will be 1294 called gpio-lp87565. 1295 1296config GPIO_MADERA 1297 tristate "Cirrus Logic Madera class codecs" 1298 depends on PINCTRL_MADERA 1299 help 1300 Support for GPIOs on Cirrus Logic Madera class codecs. 1301 1302config GPIO_MAX77620 1303 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1304 depends on MFD_MAX77620 1305 select GPIOLIB_IRQCHIP 1306 help 1307 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1308 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1309 driver also provides interrupt support for each of the GPIOs. 1310 Say yes here to enable the max77620 to be used as GPIO controller. 1311 1312config GPIO_MAX77650 1313 tristate "Maxim MAX77650/77651 GPIO support" 1314 depends on MFD_MAX77650 1315 help 1316 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1317 These chips have a single pin that can be configured as GPIO. 1318 1319config GPIO_PALMAS 1320 bool "TI PALMAS series PMICs GPIO" 1321 depends on MFD_PALMAS 1322 help 1323 Select this option to enable GPIO driver for the TI PALMAS 1324 series chip family. 1325 1326config GPIO_RC5T583 1327 bool "RICOH RC5T583 GPIO" 1328 depends on MFD_RC5T583 1329 help 1330 Select this option to enable GPIO driver for the Ricoh RC5T583 1331 chip family. 1332 This driver provides the support for driving/reading the GPIO pins 1333 of RC5T583 device through standard GPIO library. 1334 1335config GPIO_SL28CPLD 1336 tristate "Kontron sl28cpld GPIO support" 1337 depends on MFD_SL28CPLD || COMPILE_TEST 1338 select GPIO_REGMAP 1339 select GPIOLIB_IRQCHIP 1340 select REGMAP_IRQ 1341 help 1342 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1343 1344 This driver can also be built as a module. If so, the module will be 1345 called gpio-sl28cpld. 1346 1347config GPIO_STMPE 1348 bool "STMPE GPIOs" 1349 depends on MFD_STMPE 1350 depends on OF_GPIO 1351 select GPIOLIB_IRQCHIP 1352 help 1353 This enables support for the GPIOs found on the STMPE I/O 1354 Expanders. 1355 1356config GPIO_TC3589X 1357 bool "TC3589X GPIOs" 1358 depends on MFD_TC3589X 1359 depends on OF_GPIO 1360 select GPIOLIB_IRQCHIP 1361 help 1362 This enables support for the GPIOs found on the TC3589X 1363 I/O Expander. 1364 1365config GPIO_TIMBERDALE 1366 bool "Support for timberdale GPIO IP" 1367 depends on MFD_TIMBERDALE 1368 help 1369 Add support for the GPIO IP in the timberdale FPGA. 1370 1371config GPIO_TN48M_CPLD 1372 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1373 depends on MFD_TN48M_CPLD 1374 select GPIO_REGMAP 1375 help 1376 This enables support for the GPIOs found on the Delta 1377 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1378 they are input-only or output-only type. 1379 1380 This driver can also be built as a module. If so, the 1381 module will be called gpio-tn48m. 1382 1383config GPIO_TPS65086 1384 tristate "TI TPS65086 GPO" 1385 depends on MFD_TPS65086 1386 help 1387 This driver supports the GPO on TI TPS65086x PMICs. 1388 1389config GPIO_TPS65218 1390 tristate "TPS65218 GPIO" 1391 depends on MFD_TPS65218 1392 help 1393 Select this option to enable GPIO driver for the TPS65218 1394 chip family. 1395 1396config GPIO_TPS6586X 1397 bool "TPS6586X GPIO" 1398 depends on MFD_TPS6586X 1399 help 1400 Select this option to enable GPIO driver for the TPS6586X 1401 chip family. 1402 1403config GPIO_TPS65910 1404 bool "TPS65910 GPIO" 1405 depends on MFD_TPS65910 1406 help 1407 Select this option to enable GPIO driver for the TPS65910 1408 chip family. 1409 1410config GPIO_TPS65912 1411 tristate "TI TPS65912 GPIO" 1412 depends on MFD_TPS65912 1413 help 1414 This driver supports TPS65912 GPIO chip. 1415 1416config GPIO_TPS68470 1417 tristate "TPS68470 GPIO" 1418 depends on INTEL_SKL_INT3472 1419 help 1420 Select this option to enable GPIO driver for the TPS68470 1421 chip family. 1422 There are 7 GPIOs and few sensor-related GPIOs supported 1423 by the TPS68470. While the 7 GPIOs can be configured as 1424 input or output as appropriate, the sensor related GPIOs 1425 are "output only" GPIOs. 1426 1427config GPIO_TQMX86 1428 tristate "TQ-Systems QTMX86 GPIO" 1429 depends on MFD_TQMX86 || COMPILE_TEST 1430 depends on HAS_IOPORT_MAP 1431 select GPIOLIB_IRQCHIP 1432 help 1433 This driver supports GPIO on the TQMX86 IO controller. 1434 1435config GPIO_TWL4030 1436 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1437 depends on TWL4030_CORE 1438 help 1439 Say yes here to access the GPIO signals of various multi-function 1440 power management chips from Texas Instruments. 1441 1442config GPIO_TWL6040 1443 tristate "TWL6040 GPO" 1444 depends on TWL6040_CORE 1445 help 1446 Say yes here to access the GPO signals of twl6040 1447 audio chip from Texas Instruments. 1448 1449config GPIO_UCB1400 1450 tristate "Philips UCB1400 GPIO" 1451 depends on UCB1400_CORE 1452 help 1453 This enables support for the Philips UCB1400 GPIO pins. 1454 The UCB1400 is an AC97 audio codec. 1455 1456config GPIO_WHISKEY_COVE 1457 tristate "GPIO support for Whiskey Cove PMIC" 1458 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1459 select GPIOLIB_IRQCHIP 1460 help 1461 Support for GPIO pins on Whiskey Cove PMIC. 1462 1463 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1464 inside. 1465 1466 This driver can also be built as a module. If so, the module will be 1467 called gpio-wcove. 1468 1469config GPIO_WM831X 1470 tristate "WM831x GPIOs" 1471 depends on MFD_WM831X 1472 help 1473 Say yes here to access the GPIO signals of WM831x power management 1474 chips from Wolfson Microelectronics. 1475 1476config GPIO_WM8350 1477 tristate "WM8350 GPIOs" 1478 depends on MFD_WM8350 1479 help 1480 Say yes here to access the GPIO signals of WM8350 power management 1481 chips from Wolfson Microelectronics. 1482 1483config GPIO_WM8994 1484 tristate "WM8994 GPIOs" 1485 depends on MFD_WM8994 1486 help 1487 Say yes here to access the GPIO signals of WM8994 audio hub 1488 CODECs from Wolfson Microelectronics. 1489 1490endmenu 1491 1492menu "PCI GPIO expanders" 1493 depends on PCI 1494 1495config GPIO_AMD8111 1496 tristate "AMD 8111 GPIO driver" 1497 depends on X86 || COMPILE_TEST 1498 depends on HAS_IOPORT_MAP 1499 help 1500 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1501 1502 Note that usually system firmware/ACPI handles GPIO pins on their 1503 own and users might easily break their systems with uncareful usage 1504 of this driver! 1505 1506 If unsure, say N 1507 1508config GPIO_BT8XX 1509 tristate "BT8XX GPIO abuser" 1510 depends on VIDEO_BT848=n 1511 help 1512 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1513 as a cheap PCI GPIO card. 1514 1515 This chip can be found on Miro, Hauppauge and STB TV-cards. 1516 1517 The card needs to be physically altered for using it as a 1518 GPIO card. For more information on how to build a GPIO card 1519 from a BT8xx TV card, see the documentation file at 1520 Documentation/driver-api/gpio/bt8xxgpio.rst 1521 1522 If unsure, say N. 1523 1524config GPIO_MERRIFIELD 1525 tristate "Intel Merrifield GPIO support" 1526 depends on X86_INTEL_MID 1527 select GPIOLIB_IRQCHIP 1528 help 1529 Say Y here to support Intel Merrifield GPIO. 1530 1531config GPIO_MLXBF 1532 tristate "Mellanox BlueField SoC GPIO" 1533 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1534 select GPIO_GENERIC 1535 help 1536 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1537 1538config GPIO_MLXBF2 1539 tristate "Mellanox BlueField 2 SoC GPIO" 1540 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1541 select GPIO_GENERIC 1542 help 1543 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1544 1545config GPIO_ML_IOH 1546 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1547 depends on X86 || COMPILE_TEST 1548 select GENERIC_IRQ_CHIP 1549 help 1550 ML7213 is companion chip for Intel Atom E6xx series. 1551 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1552 Hub) which is for IVI (In-Vehicle Infotainment) use. 1553 This driver can access the IOH's GPIO device. 1554 1555config GPIO_PCH 1556 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1557 depends on X86_32 || MIPS || COMPILE_TEST 1558 select GENERIC_IRQ_CHIP 1559 help 1560 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1561 which is an IOH (Input/Output Hub) for x86 embedded processor. 1562 This driver can access PCH GPIO device. 1563 1564 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1565 Output Hub), ML7223 and ML7831. 1566 ML7223 IOH is for MP (Media Phone) use. 1567 ML7831 IOH is for general purpose use. 1568 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1569 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1570 1571config GPIO_PCI_IDIO_16 1572 tristate "ACCES PCI-IDIO-16 GPIO support" 1573 select GPIOLIB_IRQCHIP 1574 help 1575 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1576 generated when any of the inputs change state (low to high or high to 1577 low). Input filter control is not supported by this driver, and the 1578 input filters are deactivated by this driver. 1579 1580config GPIO_PCIE_IDIO_24 1581 tristate "ACCES PCIe-IDIO-24 GPIO support" 1582 select GPIOLIB_IRQCHIP 1583 help 1584 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1585 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1586 when any of the inputs change state (low to high or high to low). 1587 Input filter control is not supported by this driver, and the input 1588 filters are deactivated by this driver. 1589 1590config GPIO_RDC321X 1591 tristate "RDC R-321x GPIO support" 1592 select MFD_CORE 1593 select MFD_RDC321X 1594 help 1595 Support for the RDC R321x SoC GPIOs over southbridge 1596 PCI configuration space. 1597 1598config GPIO_SODAVILLE 1599 bool "Intel Sodaville GPIO support" 1600 depends on X86 && OF 1601 select GPIO_GENERIC 1602 select GENERIC_IRQ_CHIP 1603 help 1604 Say Y here to support Intel Sodaville GPIO. 1605 1606endmenu 1607 1608menu "SPI GPIO expanders" 1609 depends on SPI_MASTER 1610 1611config GPIO_74X164 1612 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1613 depends on OF_GPIO 1614 help 1615 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1616 shift registers. This driver can be used to provide access 1617 to more GPIO outputs. 1618 1619config GPIO_MAX3191X 1620 tristate "Maxim MAX3191x industrial serializer" 1621 select CRC8 1622 help 1623 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1624 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1625 chip to make 8 digital 24V inputs available via SPI. Supports 1626 CRC checksums to guard against electromagnetic interference, 1627 as well as undervoltage and overtemperature detection. 1628 1629config GPIO_MAX7301 1630 tristate "Maxim MAX7301 GPIO expander" 1631 select GPIO_MAX730X 1632 help 1633 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1634 1635config GPIO_MC33880 1636 tristate "Freescale MC33880 high-side/low-side switch" 1637 help 1638 SPI driver for Freescale MC33880 high-side/low-side switch. 1639 This provides GPIO interface supporting inputs and outputs. 1640 1641config GPIO_PISOSR 1642 tristate "Generic parallel-in/serial-out shift register" 1643 help 1644 GPIO driver for SPI compatible parallel-in/serial-out shift 1645 registers. These are input only devices. 1646 1647config GPIO_XRA1403 1648 tristate "EXAR XRA1403 16-bit GPIO expander" 1649 select REGMAP_SPI 1650 help 1651 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1652 1653config GPIO_MOXTET 1654 tristate "Turris Mox Moxtet bus GPIO expander" 1655 depends on MOXTET 1656 help 1657 Say yes here if you are building for the Turris Mox router. 1658 This is the driver needed for configuring the GPIOs via the Moxtet 1659 bus. For example the Mox module with SFP cage needs this driver 1660 so that phylink can use corresponding GPIOs. 1661 1662endmenu 1663 1664menu "USB GPIO expanders" 1665 depends on USB 1666 1667config GPIO_VIPERBOARD 1668 tristate "Viperboard GPIO a & b support" 1669 depends on MFD_VIPERBOARD 1670 help 1671 Say yes here to access the GPIO signals of Nano River 1672 Technologies Viperboard. There are two GPIO chips on the 1673 board: gpioa and gpiob. 1674 See viperboard API specification and Nano 1675 River Tech's viperboard.h for detailed meaning 1676 of the module parameters. 1677 1678endmenu 1679 1680menu "Virtual GPIO drivers" 1681 1682config GPIO_AGGREGATOR 1683 tristate "GPIO Aggregator" 1684 help 1685 Say yes here to enable the GPIO Aggregator, which provides a way to 1686 aggregate existing GPIO lines into a new virtual GPIO chip. 1687 This can serve the following purposes: 1688 - Assign permissions for a collection of GPIO lines to a user, 1689 - Export a collection of GPIO lines to a virtual machine, 1690 - Provide a generic driver for a GPIO-operated device in an 1691 industrial control context, to be operated from userspace using 1692 the GPIO chardev interface. 1693 1694config GPIO_MOCKUP 1695 tristate "GPIO Testing Driver" 1696 select IRQ_SIM 1697 help 1698 This enables GPIO Testing driver, which provides a way to test GPIO 1699 subsystem through sysfs (or char device) and debugfs. 1700 User could use it through the script in 1701 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1702 it. 1703 1704config GPIO_VIRTIO 1705 tristate "VirtIO GPIO support" 1706 depends on VIRTIO 1707 select GPIOLIB_IRQCHIP 1708 help 1709 Say Y here to enable guest support for virtio-based GPIO controllers. 1710 1711 These virtual GPIOs can be routed to real GPIOs or attached to 1712 simulators on the host (like QEMU). 1713 1714config GPIO_SIM 1715 tristate "GPIO Simulator Module" 1716 select IRQ_SIM 1717 select CONFIGFS_FS 1718 help 1719 This enables the GPIO simulator - a configfs-based GPIO testing 1720 driver. 1721 1722endmenu 1723 1724endif 1725