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 help 845 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 846 104-DIO-24E). The base port addresses for the devices may be 847 configured via the base module parameter. The interrupt line numbers 848 for the devices may be configured via the irq module parameter. 849 850config GPIO_104_IDIO_16 851 tristate "ACCES 104-IDIO-16 GPIO support" 852 depends on PC104 853 select ISA_BUS_API 854 select GPIOLIB_IRQCHIP 855 help 856 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 857 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 858 base port addresses for the devices may be configured via the base 859 module parameter. The interrupt line numbers for the devices may be 860 configured via the irq module parameter. 861 862config GPIO_104_IDI_48 863 tristate "ACCES 104-IDI-48 GPIO support" 864 depends on PC104 865 select ISA_BUS_API 866 select GPIOLIB_IRQCHIP 867 help 868 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 869 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 870 the devices may be configured via the base module parameter. The 871 interrupt line numbers for the devices may be configured via the irq 872 module parameter. 873 874config GPIO_F7188X 875 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 876 help 877 This option enables support for GPIOs found on Fintek Super-I/O 878 chips F71869, F71869A, F71882FG, F71889F and F81866. 879 880 To compile this driver as a module, choose M here: the module will 881 be called f7188x-gpio. 882 883config GPIO_GPIO_MM 884 tristate "Diamond Systems GPIO-MM GPIO support" 885 depends on PC104 886 select ISA_BUS_API 887 help 888 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 889 890 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 891 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 892 support for these 48 channels of digital I/O. 893 894 The base port addresses for the devices may be configured via the base 895 array module parameter. 896 897config GPIO_IT87 898 tristate "IT87xx GPIO support" 899 help 900 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 901 902 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 903 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 904 well. 905 906 To compile this driver as a module, choose M here: the module will 907 be called gpio_it87. 908 909config GPIO_SCH 910 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 911 depends on (X86 || COMPILE_TEST) && ACPI 912 depends on LPC_SCH 913 select GPIOLIB_IRQCHIP 914 help 915 Say yes here to support GPIO interface on Intel Poulsbo SCH, 916 Intel Tunnel Creek processor, Intel Centerton processor or 917 Intel Quark X1000 SoC. 918 919 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 920 powered by the core power rail and are turned off during sleep 921 modes (S3 and higher). The remaining four GPIOs are powered by 922 the Intel SCH suspend power supply. These GPIOs remain 923 active during S3. The suspend-powered GPIOs can be used to wake the 924 system from the Suspend-to-RAM state. 925 926 The Intel Tunnel Creek processor has 5 GPIOs powered by the 927 core power rail and 9 from suspend power supply. 928 929 The Intel Centerton processor has a total of 30 GPIO pins. 930 Twenty-one are powered by the core power rail and 9 from the 931 suspend power supply. 932 933 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 934 power well and 6 from the suspend power well. 935 936config GPIO_SCH311X 937 tristate "SMSC SCH311x SuperI/O GPIO" 938 help 939 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 940 SCH3116 "Super I/O" chipsets. 941 942 To compile this driver as a module, choose M here: the module will 943 be called gpio-sch311x. 944 945config GPIO_TS5500 946 tristate "TS-5500 DIO blocks and compatibles" 947 depends on TS5500 || COMPILE_TEST 948 help 949 This driver supports Digital I/O exposed by pin blocks found on some 950 Technologic Systems platforms. It includes, but is not limited to, 3 951 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 952 LCD port. 953 954config GPIO_WINBOND 955 tristate "Winbond Super I/O GPIO support" 956 select ISA_BUS_API 957 help 958 This option enables support for GPIOs found on Winbond Super I/O 959 chips. 960 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 961 supported. 962 963 You will need to provide a module parameter "gpios", or a 964 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 965 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 966 967 To compile this driver as a module, choose M here: the module will 968 be called gpio-winbond. 969 970config GPIO_WS16C48 971 tristate "WinSystems WS16C48 GPIO support" 972 select ISA_BUS_API 973 select GPIOLIB_IRQCHIP 974 help 975 Enables GPIO support for the WinSystems WS16C48. The base port 976 addresses for the devices may be configured via the base module 977 parameter. The interrupt line numbers for the devices may be 978 configured via the irq module parameter. 979 980endmenu 981 982menu "I2C GPIO expanders" 983 depends on I2C 984 985config GPIO_ADP5588 986 tristate "ADP5588 I2C GPIO expander" 987 help 988 This option enables support for 18 GPIOs found 989 on Analog Devices ADP5588 GPIO Expanders. 990 991config GPIO_ADP5588_IRQ 992 bool "Interrupt controller support for ADP5588" 993 depends on GPIO_ADP5588=y 994 select GPIOLIB_IRQCHIP 995 help 996 Say yes here to enable the adp5588 to be used as an interrupt 997 controller. It requires the driver to be built in the kernel. 998 999config GPIO_ADNP 1000 tristate "Avionic Design N-bit GPIO expander" 1001 depends on OF_GPIO 1002 select GPIOLIB_IRQCHIP 1003 help 1004 This option enables support for N GPIOs found on Avionic Design 1005 I2C GPIO expanders. The register space will be extended by powers 1006 of two, so the controller will need to accommodate for that. For 1007 example: if a controller provides 48 pins, 6 registers will be 1008 enough to represent all pins, but the driver will assume a 1009 register layout for 64 pins (8 registers). 1010 1011config GPIO_GW_PLD 1012 tristate "Gateworks PLD GPIO Expander" 1013 depends on OF_GPIO 1014 help 1015 Say yes here to provide access to the Gateworks I2C PLD GPIO 1016 Expander. This is used at least on the Cambria GW2358-4. 1017 1018config GPIO_MAX7300 1019 tristate "Maxim MAX7300 GPIO expander" 1020 select GPIO_MAX730X 1021 help 1022 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1023 1024config GPIO_MAX732X 1025 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1026 help 1027 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1028 Port Expanders. Each IO port on these chips has a fixed role of 1029 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1030 Input and Output (designed by 'P'). The combinations are listed 1031 below: 1032 1033 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1034 max7322 (4I4O), max7323 (4P4O) 1035 1036 16 bits: max7324 (8I8O), max7325 (8P8O), 1037 max7326 (4I12O), max7327 (4P12O) 1038 1039 Board setup code must specify the model to use, and the start 1040 number for these GPIOs. 1041 1042config GPIO_MAX732X_IRQ 1043 bool "Interrupt controller support for MAX732x" 1044 depends on GPIO_MAX732X=y 1045 select GPIOLIB_IRQCHIP 1046 help 1047 Say yes here to enable the max732x to be used as an interrupt 1048 controller. It requires the driver to be built in the kernel. 1049 1050config GPIO_PCA953X 1051 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1052 select REGMAP_I2C 1053 help 1054 Say yes here to provide access to several register-oriented 1055 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1056 models include: 1057 1058 4 bits: pca9536, pca9537 1059 1060 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1061 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1062 1063 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1064 tca6416 1065 1066 24 bits: tca6424 1067 1068 40 bits: pca9505, pca9698 1069 1070config GPIO_PCA953X_IRQ 1071 bool "Interrupt controller support for PCA953x" 1072 depends on GPIO_PCA953X 1073 select GPIOLIB_IRQCHIP 1074 help 1075 Say yes here to enable the pca953x to be used as an interrupt 1076 controller. 1077 1078config GPIO_PCA9570 1079 tristate "PCA9570 4-Bit I2C GPO expander" 1080 help 1081 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1082 1083 To compile this driver as a module, choose M here: the module will 1084 be called gpio-pca9570. 1085 1086config GPIO_PCF857X 1087 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1088 select GPIOLIB_IRQCHIP 1089 select IRQ_DOMAIN 1090 help 1091 Say yes here to provide access to most "quasi-bidirectional" I2C 1092 GPIO expanders used for additional digital outputs or inputs. 1093 Most of these parts are from NXP, though TI is a second source for 1094 some of them. Compatible models include: 1095 1096 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1097 pca9670, pca9672, pca9674, pca9674a, 1098 max7328, max7329 1099 1100 16 bits: pcf8575, pcf8575c, pca8575, 1101 pca9671, pca9673, pca9675 1102 1103 Your board setup code will need to declare the expanders in 1104 use, and assign numbers to the GPIOs they expose. Those GPIOs 1105 can then be used from drivers and other kernel code, just like 1106 other GPIOs, but only accessible from task contexts. 1107 1108 This driver provides an in-kernel interface to those GPIOs using 1109 platform-neutral GPIO calls. 1110 1111config GPIO_TPIC2810 1112 tristate "TPIC2810 8-Bit I2C GPO expander" 1113 help 1114 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1115 1116 To compile this driver as a module, choose M here: the module will 1117 be called gpio-tpic2810. 1118 1119config GPIO_TS4900 1120 tristate "Technologic Systems FPGA I2C GPIO" 1121 depends on SOC_IMX6 || COMPILE_TEST 1122 select REGMAP_I2C 1123 help 1124 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1125 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1126 1127endmenu 1128 1129menu "MFD GPIO expanders" 1130 1131config GPIO_ADP5520 1132 tristate "GPIO Support for ADP5520 PMIC" 1133 depends on PMIC_ADP5520 1134 help 1135 This option enables support for on-chip GPIO found 1136 on Analog Devices ADP5520 PMICs. 1137 1138config GPIO_ALTERA_A10SR 1139 tristate "Altera Arria10 System Resource GPIO" 1140 depends on MFD_ALTERA_A10SR 1141 help 1142 Driver for Arria10 Development Kit GPIO expansion which 1143 includes reads of pushbuttons and DIP switches as well 1144 as writes to LEDs. 1145 1146config GPIO_ARIZONA 1147 tristate "Wolfson Microelectronics Arizona class devices" 1148 depends on MFD_ARIZONA 1149 help 1150 Support for GPIOs on Wolfson Arizona class devices. 1151 1152config GPIO_BD71815 1153 tristate "ROHM BD71815 PMIC GPIO support" 1154 depends on MFD_ROHM_BD71828 1155 help 1156 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1157 available on the ROHM PMIC. 1158 1159 This driver can also be built as a module. If so, the module 1160 will be called gpio-bd71815. 1161 1162config GPIO_BD71828 1163 tristate "ROHM BD71828 GPIO support" 1164 depends on MFD_ROHM_BD71828 1165 help 1166 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1167 available on the ROHM PMIC in total. The GPIOs are limited to 1168 outputs only and pins must be configured to GPIO outputs by 1169 OTP. Enable this only if you want to use these pins as outputs. 1170 1171 This driver can also be built as a module. If so, the module 1172 will be called gpio-bd71828. 1173 1174config GPIO_BD9571MWV 1175 tristate "ROHM BD9571 GPIO support" 1176 depends on MFD_BD9571MWV 1177 help 1178 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1179 available on the ROHM PMIC in total, both of which can also 1180 generate interrupts. 1181 1182 This driver can also be built as a module. If so, the module 1183 will be called gpio-bd9571mwv. 1184 1185config GPIO_CRYSTAL_COVE 1186 tristate "GPIO support for Crystal Cove PMIC" 1187 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1188 select GPIOLIB_IRQCHIP 1189 help 1190 Support for GPIO pins on Crystal Cove PMIC. 1191 1192 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1193 inside. 1194 1195 This driver can also be built as a module. If so, the module will be 1196 called gpio-crystalcove. 1197 1198config GPIO_CS5535 1199 tristate "AMD CS5535/CS5536 GPIO support" 1200 depends on X86 || MIPS || COMPILE_TEST 1201 depends on MFD_CS5535 1202 help 1203 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1204 can be used for quite a number of things. The CS5535/6 is found on 1205 AMD Geode and Lemote Yeeloong devices. 1206 1207 If unsure, say N. 1208 1209config GPIO_DA9052 1210 tristate "Dialog DA9052 GPIO" 1211 depends on PMIC_DA9052 1212 help 1213 Say yes here to enable the GPIO driver for the DA9052 chip. 1214 1215config GPIO_DA9055 1216 tristate "Dialog Semiconductor DA9055 GPIO" 1217 depends on MFD_DA9055 1218 help 1219 Say yes here to enable the GPIO driver for the DA9055 chip. 1220 1221 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1222 be controlled by this driver. 1223 1224 If driver is built as a module it will be called gpio-da9055. 1225 1226config GPIO_DLN2 1227 tristate "Diolan DLN2 GPIO support" 1228 depends on MFD_DLN2 1229 select GPIOLIB_IRQCHIP 1230 1231 help 1232 Select this option to enable GPIO driver for the Diolan DLN2 1233 board. 1234 1235 This driver can also be built as a module. If so, the module 1236 will be called gpio-dln2. 1237 1238config HTC_EGPIO 1239 bool "HTC EGPIO support" 1240 depends on ARM 1241 help 1242 This driver supports the CPLD egpio chip present on 1243 several HTC phones. It provides basic support for input 1244 pins, output pins, and IRQs. 1245 1246config GPIO_JANZ_TTL 1247 tristate "Janz VMOD-TTL Digital IO Module" 1248 depends on MFD_JANZ_CMODIO 1249 help 1250 This enables support for the Janz VMOD-TTL Digital IO module. 1251 This driver provides support for driving the pins in output 1252 mode only. Input mode is not supported. 1253 1254config GPIO_KEMPLD 1255 tristate "Kontron ETX / COMexpress GPIO" 1256 depends on MFD_KEMPLD 1257 help 1258 This enables support for the PLD GPIO interface on some Kontron ETX 1259 and COMexpress (ETXexpress) modules. 1260 1261 This driver can also be built as a module. If so, the module will be 1262 called gpio-kempld. 1263 1264config GPIO_LP3943 1265 tristate "TI/National Semiconductor LP3943 GPIO expander" 1266 depends on MFD_LP3943 1267 help 1268 GPIO driver for LP3943 MFD. 1269 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1270 Open drain outputs are required for this usage. 1271 1272config GPIO_LP873X 1273 tristate "TI LP873X GPO" 1274 depends on MFD_TI_LP873X 1275 help 1276 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1277 on LP873X PMICs. 1278 1279 This driver can also be built as a module. If so, the module will be 1280 called gpio-lp873x. 1281 1282config GPIO_LP87565 1283 tristate "TI LP87565 GPIO" 1284 depends on MFD_TI_LP87565 1285 help 1286 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1287 on LP87565 PMICs. 1288 1289 This driver can also be built as a module. If so, the module will be 1290 called gpio-lp87565. 1291 1292config GPIO_MADERA 1293 tristate "Cirrus Logic Madera class codecs" 1294 depends on PINCTRL_MADERA 1295 help 1296 Support for GPIOs on Cirrus Logic Madera class codecs. 1297 1298config GPIO_MAX77620 1299 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1300 depends on MFD_MAX77620 1301 select GPIOLIB_IRQCHIP 1302 help 1303 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1304 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1305 driver also provides interrupt support for each of the GPIOs. 1306 Say yes here to enable the max77620 to be used as GPIO controller. 1307 1308config GPIO_MAX77650 1309 tristate "Maxim MAX77650/77651 GPIO support" 1310 depends on MFD_MAX77650 1311 help 1312 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1313 These chips have a single pin that can be configured as GPIO. 1314 1315config GPIO_PALMAS 1316 bool "TI PALMAS series PMICs GPIO" 1317 depends on MFD_PALMAS 1318 help 1319 Select this option to enable GPIO driver for the TI PALMAS 1320 series chip family. 1321 1322config GPIO_RC5T583 1323 bool "RICOH RC5T583 GPIO" 1324 depends on MFD_RC5T583 1325 help 1326 Select this option to enable GPIO driver for the Ricoh RC5T583 1327 chip family. 1328 This driver provides the support for driving/reading the GPIO pins 1329 of RC5T583 device through standard GPIO library. 1330 1331config GPIO_SL28CPLD 1332 tristate "Kontron sl28cpld GPIO support" 1333 depends on MFD_SL28CPLD || COMPILE_TEST 1334 select GPIO_REGMAP 1335 select GPIOLIB_IRQCHIP 1336 select REGMAP_IRQ 1337 help 1338 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1339 1340 This driver can also be built as a module. If so, the module will be 1341 called gpio-sl28cpld. 1342 1343config GPIO_STMPE 1344 bool "STMPE GPIOs" 1345 depends on MFD_STMPE 1346 depends on OF_GPIO 1347 select GPIOLIB_IRQCHIP 1348 help 1349 This enables support for the GPIOs found on the STMPE I/O 1350 Expanders. 1351 1352config GPIO_TC3589X 1353 bool "TC3589X GPIOs" 1354 depends on MFD_TC3589X 1355 depends on OF_GPIO 1356 select GPIOLIB_IRQCHIP 1357 help 1358 This enables support for the GPIOs found on the TC3589X 1359 I/O Expander. 1360 1361config GPIO_TIMBERDALE 1362 bool "Support for timberdale GPIO IP" 1363 depends on MFD_TIMBERDALE 1364 help 1365 Add support for the GPIO IP in the timberdale FPGA. 1366 1367config GPIO_TN48M_CPLD 1368 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1369 depends on MFD_TN48M_CPLD 1370 select GPIO_REGMAP 1371 help 1372 This enables support for the GPIOs found on the Delta 1373 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1374 they are input-only or output-only type. 1375 1376 This driver can also be built as a module. If so, the 1377 module will be called gpio-tn48m. 1378 1379config GPIO_TPS65086 1380 tristate "TI TPS65086 GPO" 1381 depends on MFD_TPS65086 1382 help 1383 This driver supports the GPO on TI TPS65086x PMICs. 1384 1385config GPIO_TPS65218 1386 tristate "TPS65218 GPIO" 1387 depends on MFD_TPS65218 1388 help 1389 Select this option to enable GPIO driver for the TPS65218 1390 chip family. 1391 1392config GPIO_TPS6586X 1393 bool "TPS6586X GPIO" 1394 depends on MFD_TPS6586X 1395 help 1396 Select this option to enable GPIO driver for the TPS6586X 1397 chip family. 1398 1399config GPIO_TPS65910 1400 bool "TPS65910 GPIO" 1401 depends on MFD_TPS65910 1402 help 1403 Select this option to enable GPIO driver for the TPS65910 1404 chip family. 1405 1406config GPIO_TPS65912 1407 tristate "TI TPS65912 GPIO" 1408 depends on MFD_TPS65912 1409 help 1410 This driver supports TPS65912 GPIO chip. 1411 1412config GPIO_TPS68470 1413 tristate "TPS68470 GPIO" 1414 depends on INTEL_SKL_INT3472 1415 help 1416 Select this option to enable GPIO driver for the TPS68470 1417 chip family. 1418 There are 7 GPIOs and few sensor-related GPIOs supported 1419 by the TPS68470. While the 7 GPIOs can be configured as 1420 input or output as appropriate, the sensor related GPIOs 1421 are "output only" GPIOs. 1422 1423config GPIO_TQMX86 1424 tristate "TQ-Systems QTMX86 GPIO" 1425 depends on MFD_TQMX86 || COMPILE_TEST 1426 depends on HAS_IOPORT_MAP 1427 select GPIOLIB_IRQCHIP 1428 help 1429 This driver supports GPIO on the TQMX86 IO controller. 1430 1431config GPIO_TWL4030 1432 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1433 depends on TWL4030_CORE 1434 help 1435 Say yes here to access the GPIO signals of various multi-function 1436 power management chips from Texas Instruments. 1437 1438config GPIO_TWL6040 1439 tristate "TWL6040 GPO" 1440 depends on TWL6040_CORE 1441 help 1442 Say yes here to access the GPO signals of twl6040 1443 audio chip from Texas Instruments. 1444 1445config GPIO_UCB1400 1446 tristate "Philips UCB1400 GPIO" 1447 depends on UCB1400_CORE 1448 help 1449 This enables support for the Philips UCB1400 GPIO pins. 1450 The UCB1400 is an AC97 audio codec. 1451 1452config GPIO_WHISKEY_COVE 1453 tristate "GPIO support for Whiskey Cove PMIC" 1454 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1455 select GPIOLIB_IRQCHIP 1456 help 1457 Support for GPIO pins on Whiskey Cove PMIC. 1458 1459 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1460 inside. 1461 1462 This driver can also be built as a module. If so, the module will be 1463 called gpio-wcove. 1464 1465config GPIO_WM831X 1466 tristate "WM831x GPIOs" 1467 depends on MFD_WM831X 1468 help 1469 Say yes here to access the GPIO signals of WM831x power management 1470 chips from Wolfson Microelectronics. 1471 1472config GPIO_WM8350 1473 tristate "WM8350 GPIOs" 1474 depends on MFD_WM8350 1475 help 1476 Say yes here to access the GPIO signals of WM8350 power management 1477 chips from Wolfson Microelectronics. 1478 1479config GPIO_WM8994 1480 tristate "WM8994 GPIOs" 1481 depends on MFD_WM8994 1482 help 1483 Say yes here to access the GPIO signals of WM8994 audio hub 1484 CODECs from Wolfson Microelectronics. 1485 1486endmenu 1487 1488menu "PCI GPIO expanders" 1489 depends on PCI 1490 1491config GPIO_AMD8111 1492 tristate "AMD 8111 GPIO driver" 1493 depends on X86 || COMPILE_TEST 1494 depends on HAS_IOPORT_MAP 1495 help 1496 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1497 1498 Note that usually system firmware/ACPI handles GPIO pins on their 1499 own and users might easily break their systems with uncareful usage 1500 of this driver! 1501 1502 If unsure, say N 1503 1504config GPIO_BT8XX 1505 tristate "BT8XX GPIO abuser" 1506 depends on VIDEO_BT848=n 1507 help 1508 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1509 as a cheap PCI GPIO card. 1510 1511 This chip can be found on Miro, Hauppauge and STB TV-cards. 1512 1513 The card needs to be physically altered for using it as a 1514 GPIO card. For more information on how to build a GPIO card 1515 from a BT8xx TV card, see the documentation file at 1516 Documentation/driver-api/gpio/bt8xxgpio.rst 1517 1518 If unsure, say N. 1519 1520config GPIO_MERRIFIELD 1521 tristate "Intel Merrifield GPIO support" 1522 depends on X86_INTEL_MID 1523 select GPIOLIB_IRQCHIP 1524 help 1525 Say Y here to support Intel Merrifield GPIO. 1526 1527config GPIO_MLXBF 1528 tristate "Mellanox BlueField SoC GPIO" 1529 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1530 select GPIO_GENERIC 1531 help 1532 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1533 1534config GPIO_MLXBF2 1535 tristate "Mellanox BlueField 2 SoC GPIO" 1536 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1537 select GPIO_GENERIC 1538 help 1539 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1540 1541config GPIO_ML_IOH 1542 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1543 depends on X86 || COMPILE_TEST 1544 select GENERIC_IRQ_CHIP 1545 help 1546 ML7213 is companion chip for Intel Atom E6xx series. 1547 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1548 Hub) which is for IVI (In-Vehicle Infotainment) use. 1549 This driver can access the IOH's GPIO device. 1550 1551config GPIO_PCH 1552 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1553 depends on X86_32 || MIPS || COMPILE_TEST 1554 select GENERIC_IRQ_CHIP 1555 help 1556 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1557 which is an IOH (Input/Output Hub) for x86 embedded processor. 1558 This driver can access PCH GPIO device. 1559 1560 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1561 Output Hub), ML7223 and ML7831. 1562 ML7223 IOH is for MP (Media Phone) use. 1563 ML7831 IOH is for general purpose use. 1564 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1565 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1566 1567config GPIO_PCI_IDIO_16 1568 tristate "ACCES PCI-IDIO-16 GPIO support" 1569 select GPIOLIB_IRQCHIP 1570 help 1571 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1572 generated when any of the inputs change state (low to high or high to 1573 low). Input filter control is not supported by this driver, and the 1574 input filters are deactivated by this driver. 1575 1576config GPIO_PCIE_IDIO_24 1577 tristate "ACCES PCIe-IDIO-24 GPIO support" 1578 select GPIOLIB_IRQCHIP 1579 help 1580 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1581 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1582 when any of the inputs change state (low to high or high to low). 1583 Input filter control is not supported by this driver, and the input 1584 filters are deactivated by this driver. 1585 1586config GPIO_RDC321X 1587 tristate "RDC R-321x GPIO support" 1588 select MFD_CORE 1589 select MFD_RDC321X 1590 help 1591 Support for the RDC R321x SoC GPIOs over southbridge 1592 PCI configuration space. 1593 1594config GPIO_SODAVILLE 1595 bool "Intel Sodaville GPIO support" 1596 depends on X86 && OF 1597 select GPIO_GENERIC 1598 select GENERIC_IRQ_CHIP 1599 help 1600 Say Y here to support Intel Sodaville GPIO. 1601 1602endmenu 1603 1604menu "SPI GPIO expanders" 1605 depends on SPI_MASTER 1606 1607config GPIO_74X164 1608 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1609 depends on OF_GPIO 1610 help 1611 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1612 shift registers. This driver can be used to provide access 1613 to more GPIO outputs. 1614 1615config GPIO_MAX3191X 1616 tristate "Maxim MAX3191x industrial serializer" 1617 select CRC8 1618 help 1619 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1620 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1621 chip to make 8 digital 24V inputs available via SPI. Supports 1622 CRC checksums to guard against electromagnetic interference, 1623 as well as undervoltage and overtemperature detection. 1624 1625config GPIO_MAX7301 1626 tristate "Maxim MAX7301 GPIO expander" 1627 select GPIO_MAX730X 1628 help 1629 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1630 1631config GPIO_MC33880 1632 tristate "Freescale MC33880 high-side/low-side switch" 1633 help 1634 SPI driver for Freescale MC33880 high-side/low-side switch. 1635 This provides GPIO interface supporting inputs and outputs. 1636 1637config GPIO_PISOSR 1638 tristate "Generic parallel-in/serial-out shift register" 1639 help 1640 GPIO driver for SPI compatible parallel-in/serial-out shift 1641 registers. These are input only devices. 1642 1643config GPIO_XRA1403 1644 tristate "EXAR XRA1403 16-bit GPIO expander" 1645 select REGMAP_SPI 1646 help 1647 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1648 1649config GPIO_MOXTET 1650 tristate "Turris Mox Moxtet bus GPIO expander" 1651 depends on MOXTET 1652 help 1653 Say yes here if you are building for the Turris Mox router. 1654 This is the driver needed for configuring the GPIOs via the Moxtet 1655 bus. For example the Mox module with SFP cage needs this driver 1656 so that phylink can use corresponding GPIOs. 1657 1658endmenu 1659 1660menu "USB GPIO expanders" 1661 depends on USB 1662 1663config GPIO_VIPERBOARD 1664 tristate "Viperboard GPIO a & b support" 1665 depends on MFD_VIPERBOARD 1666 help 1667 Say yes here to access the GPIO signals of Nano River 1668 Technologies Viperboard. There are two GPIO chips on the 1669 board: gpioa and gpiob. 1670 See viperboard API specification and Nano 1671 River Tech's viperboard.h for detailed meaning 1672 of the module parameters. 1673 1674endmenu 1675 1676menu "Virtual GPIO drivers" 1677 1678config GPIO_AGGREGATOR 1679 tristate "GPIO Aggregator" 1680 help 1681 Say yes here to enable the GPIO Aggregator, which provides a way to 1682 aggregate existing GPIO lines into a new virtual GPIO chip. 1683 This can serve the following purposes: 1684 - Assign permissions for a collection of GPIO lines to a user, 1685 - Export a collection of GPIO lines to a virtual machine, 1686 - Provide a generic driver for a GPIO-operated device in an 1687 industrial control context, to be operated from userspace using 1688 the GPIO chardev interface. 1689 1690config GPIO_MOCKUP 1691 tristate "GPIO Testing Driver" 1692 select IRQ_SIM 1693 help 1694 This enables GPIO Testing driver, which provides a way to test GPIO 1695 subsystem through sysfs (or char device) and debugfs. 1696 User could use it through the script in 1697 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1698 it. 1699 1700config GPIO_VIRTIO 1701 tristate "VirtIO GPIO support" 1702 depends on VIRTIO 1703 select GPIOLIB_IRQCHIP 1704 help 1705 Say Y here to enable guest support for virtio-based GPIO controllers. 1706 1707 These virtual GPIOs can be routed to real GPIOs or attached to 1708 simulators on the host (like QEMU). 1709 1710config GPIO_SIM 1711 tristate "GPIO Simulator Module" 1712 select IRQ_SIM 1713 select CONFIGFS_FS 1714 help 1715 This enables the GPIO simulator - a configfs-based GPIO testing 1716 driver. 1717 1718endmenu 1719 1720endif 1721