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 help 869 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 870 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 871 the devices may be configured via the base module parameter. The 872 interrupt line numbers for the devices may be configured via the irq 873 module parameter. 874 875config GPIO_F7188X 876 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 877 help 878 This option enables support for GPIOs found on Fintek Super-I/O 879 chips F71869, F71869A, F71882FG, F71889F and F81866. 880 881 To compile this driver as a module, choose M here: the module will 882 be called f7188x-gpio. 883 884config GPIO_GPIO_MM 885 tristate "Diamond Systems GPIO-MM GPIO support" 886 depends on PC104 887 select ISA_BUS_API 888 help 889 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 890 891 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 892 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 893 support for these 48 channels of digital I/O. 894 895 The base port addresses for the devices may be configured via the base 896 array module parameter. 897 898config GPIO_IT87 899 tristate "IT87xx GPIO support" 900 help 901 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 902 903 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 904 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 905 well. 906 907 To compile this driver as a module, choose M here: the module will 908 be called gpio_it87. 909 910config GPIO_SCH 911 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 912 depends on (X86 || COMPILE_TEST) && ACPI 913 depends on LPC_SCH 914 select GPIOLIB_IRQCHIP 915 help 916 Say yes here to support GPIO interface on Intel Poulsbo SCH, 917 Intel Tunnel Creek processor, Intel Centerton processor or 918 Intel Quark X1000 SoC. 919 920 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 921 powered by the core power rail and are turned off during sleep 922 modes (S3 and higher). The remaining four GPIOs are powered by 923 the Intel SCH suspend power supply. These GPIOs remain 924 active during S3. The suspend-powered GPIOs can be used to wake the 925 system from the Suspend-to-RAM state. 926 927 The Intel Tunnel Creek processor has 5 GPIOs powered by the 928 core power rail and 9 from suspend power supply. 929 930 The Intel Centerton processor has a total of 30 GPIO pins. 931 Twenty-one are powered by the core power rail and 9 from the 932 suspend power supply. 933 934 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 935 power well and 6 from the suspend power well. 936 937config GPIO_SCH311X 938 tristate "SMSC SCH311x SuperI/O GPIO" 939 help 940 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 941 SCH3116 "Super I/O" chipsets. 942 943 To compile this driver as a module, choose M here: the module will 944 be called gpio-sch311x. 945 946config GPIO_TS5500 947 tristate "TS-5500 DIO blocks and compatibles" 948 depends on TS5500 || COMPILE_TEST 949 help 950 This driver supports Digital I/O exposed by pin blocks found on some 951 Technologic Systems platforms. It includes, but is not limited to, 3 952 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 953 LCD port. 954 955config GPIO_WINBOND 956 tristate "Winbond Super I/O GPIO support" 957 select ISA_BUS_API 958 help 959 This option enables support for GPIOs found on Winbond Super I/O 960 chips. 961 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 962 supported. 963 964 You will need to provide a module parameter "gpios", or a 965 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 966 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 967 968 To compile this driver as a module, choose M here: the module will 969 be called gpio-winbond. 970 971config GPIO_WS16C48 972 tristate "WinSystems WS16C48 GPIO support" 973 select ISA_BUS_API 974 select GPIOLIB_IRQCHIP 975 help 976 Enables GPIO support for the WinSystems WS16C48. The base port 977 addresses for the devices may be configured via the base module 978 parameter. The interrupt line numbers for the devices may be 979 configured via the irq module parameter. 980 981endmenu 982 983menu "I2C GPIO expanders" 984 depends on I2C 985 986config GPIO_ADP5588 987 tristate "ADP5588 I2C GPIO expander" 988 help 989 This option enables support for 18 GPIOs found 990 on Analog Devices ADP5588 GPIO Expanders. 991 992config GPIO_ADP5588_IRQ 993 bool "Interrupt controller support for ADP5588" 994 depends on GPIO_ADP5588=y 995 select GPIOLIB_IRQCHIP 996 help 997 Say yes here to enable the adp5588 to be used as an interrupt 998 controller. It requires the driver to be built in the kernel. 999 1000config GPIO_ADNP 1001 tristate "Avionic Design N-bit GPIO expander" 1002 depends on OF_GPIO 1003 select GPIOLIB_IRQCHIP 1004 help 1005 This option enables support for N GPIOs found on Avionic Design 1006 I2C GPIO expanders. The register space will be extended by powers 1007 of two, so the controller will need to accommodate for that. For 1008 example: if a controller provides 48 pins, 6 registers will be 1009 enough to represent all pins, but the driver will assume a 1010 register layout for 64 pins (8 registers). 1011 1012config GPIO_GW_PLD 1013 tristate "Gateworks PLD GPIO Expander" 1014 depends on OF_GPIO 1015 help 1016 Say yes here to provide access to the Gateworks I2C PLD GPIO 1017 Expander. This is used at least on the Cambria GW2358-4. 1018 1019config GPIO_MAX7300 1020 tristate "Maxim MAX7300 GPIO expander" 1021 select GPIO_MAX730X 1022 help 1023 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1024 1025config GPIO_MAX732X 1026 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1027 help 1028 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1029 Port Expanders. Each IO port on these chips has a fixed role of 1030 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1031 Input and Output (designed by 'P'). The combinations are listed 1032 below: 1033 1034 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1035 max7322 (4I4O), max7323 (4P4O) 1036 1037 16 bits: max7324 (8I8O), max7325 (8P8O), 1038 max7326 (4I12O), max7327 (4P12O) 1039 1040 Board setup code must specify the model to use, and the start 1041 number for these GPIOs. 1042 1043config GPIO_MAX732X_IRQ 1044 bool "Interrupt controller support for MAX732x" 1045 depends on GPIO_MAX732X=y 1046 select GPIOLIB_IRQCHIP 1047 help 1048 Say yes here to enable the max732x to be used as an interrupt 1049 controller. It requires the driver to be built in the kernel. 1050 1051config GPIO_PCA953X 1052 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1053 select REGMAP_I2C 1054 help 1055 Say yes here to provide access to several register-oriented 1056 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1057 models include: 1058 1059 4 bits: pca9536, pca9537 1060 1061 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1062 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1063 1064 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1065 tca6416 1066 1067 24 bits: tca6424 1068 1069 40 bits: pca9505, pca9698 1070 1071config GPIO_PCA953X_IRQ 1072 bool "Interrupt controller support for PCA953x" 1073 depends on GPIO_PCA953X 1074 select GPIOLIB_IRQCHIP 1075 help 1076 Say yes here to enable the pca953x to be used as an interrupt 1077 controller. 1078 1079config GPIO_PCA9570 1080 tristate "PCA9570 4-Bit I2C GPO expander" 1081 help 1082 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1083 1084 To compile this driver as a module, choose M here: the module will 1085 be called gpio-pca9570. 1086 1087config GPIO_PCF857X 1088 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1089 select GPIOLIB_IRQCHIP 1090 select IRQ_DOMAIN 1091 help 1092 Say yes here to provide access to most "quasi-bidirectional" I2C 1093 GPIO expanders used for additional digital outputs or inputs. 1094 Most of these parts are from NXP, though TI is a second source for 1095 some of them. Compatible models include: 1096 1097 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1098 pca9670, pca9672, pca9674, pca9674a, 1099 max7328, max7329 1100 1101 16 bits: pcf8575, pcf8575c, pca8575, 1102 pca9671, pca9673, pca9675 1103 1104 Your board setup code will need to declare the expanders in 1105 use, and assign numbers to the GPIOs they expose. Those GPIOs 1106 can then be used from drivers and other kernel code, just like 1107 other GPIOs, but only accessible from task contexts. 1108 1109 This driver provides an in-kernel interface to those GPIOs using 1110 platform-neutral GPIO calls. 1111 1112config GPIO_TPIC2810 1113 tristate "TPIC2810 8-Bit I2C GPO expander" 1114 help 1115 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1116 1117 To compile this driver as a module, choose M here: the module will 1118 be called gpio-tpic2810. 1119 1120config GPIO_TS4900 1121 tristate "Technologic Systems FPGA I2C GPIO" 1122 depends on SOC_IMX6 || COMPILE_TEST 1123 select REGMAP_I2C 1124 help 1125 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1126 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1127 1128endmenu 1129 1130menu "MFD GPIO expanders" 1131 1132config GPIO_ADP5520 1133 tristate "GPIO Support for ADP5520 PMIC" 1134 depends on PMIC_ADP5520 1135 help 1136 This option enables support for on-chip GPIO found 1137 on Analog Devices ADP5520 PMICs. 1138 1139config GPIO_ALTERA_A10SR 1140 tristate "Altera Arria10 System Resource GPIO" 1141 depends on MFD_ALTERA_A10SR 1142 help 1143 Driver for Arria10 Development Kit GPIO expansion which 1144 includes reads of pushbuttons and DIP switches as well 1145 as writes to LEDs. 1146 1147config GPIO_ARIZONA 1148 tristate "Wolfson Microelectronics Arizona class devices" 1149 depends on MFD_ARIZONA 1150 help 1151 Support for GPIOs on Wolfson Arizona class devices. 1152 1153config GPIO_BD71815 1154 tristate "ROHM BD71815 PMIC GPIO support" 1155 depends on MFD_ROHM_BD71828 1156 help 1157 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1158 available on the ROHM PMIC. 1159 1160 This driver can also be built as a module. If so, the module 1161 will be called gpio-bd71815. 1162 1163config GPIO_BD71828 1164 tristate "ROHM BD71828 GPIO support" 1165 depends on MFD_ROHM_BD71828 1166 help 1167 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1168 available on the ROHM PMIC in total. The GPIOs are limited to 1169 outputs only and pins must be configured to GPIO outputs by 1170 OTP. Enable this only if you want to use these pins as outputs. 1171 1172 This driver can also be built as a module. If so, the module 1173 will be called gpio-bd71828. 1174 1175config GPIO_BD9571MWV 1176 tristate "ROHM BD9571 GPIO support" 1177 depends on MFD_BD9571MWV 1178 help 1179 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1180 available on the ROHM PMIC in total, both of which can also 1181 generate interrupts. 1182 1183 This driver can also be built as a module. If so, the module 1184 will be called gpio-bd9571mwv. 1185 1186config GPIO_CRYSTAL_COVE 1187 tristate "GPIO support for Crystal Cove PMIC" 1188 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1189 select GPIOLIB_IRQCHIP 1190 help 1191 Support for GPIO pins on Crystal Cove PMIC. 1192 1193 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1194 inside. 1195 1196 This driver can also be built as a module. If so, the module will be 1197 called gpio-crystalcove. 1198 1199config GPIO_CS5535 1200 tristate "AMD CS5535/CS5536 GPIO support" 1201 depends on X86 || MIPS || COMPILE_TEST 1202 depends on MFD_CS5535 1203 help 1204 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1205 can be used for quite a number of things. The CS5535/6 is found on 1206 AMD Geode and Lemote Yeeloong devices. 1207 1208 If unsure, say N. 1209 1210config GPIO_DA9052 1211 tristate "Dialog DA9052 GPIO" 1212 depends on PMIC_DA9052 1213 help 1214 Say yes here to enable the GPIO driver for the DA9052 chip. 1215 1216config GPIO_DA9055 1217 tristate "Dialog Semiconductor DA9055 GPIO" 1218 depends on MFD_DA9055 1219 help 1220 Say yes here to enable the GPIO driver for the DA9055 chip. 1221 1222 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1223 be controlled by this driver. 1224 1225 If driver is built as a module it will be called gpio-da9055. 1226 1227config GPIO_DLN2 1228 tristate "Diolan DLN2 GPIO support" 1229 depends on MFD_DLN2 1230 select GPIOLIB_IRQCHIP 1231 1232 help 1233 Select this option to enable GPIO driver for the Diolan DLN2 1234 board. 1235 1236 This driver can also be built as a module. If so, the module 1237 will be called gpio-dln2. 1238 1239config HTC_EGPIO 1240 bool "HTC EGPIO support" 1241 depends on ARM 1242 help 1243 This driver supports the CPLD egpio chip present on 1244 several HTC phones. It provides basic support for input 1245 pins, output pins, and IRQs. 1246 1247config GPIO_JANZ_TTL 1248 tristate "Janz VMOD-TTL Digital IO Module" 1249 depends on MFD_JANZ_CMODIO 1250 help 1251 This enables support for the Janz VMOD-TTL Digital IO module. 1252 This driver provides support for driving the pins in output 1253 mode only. Input mode is not supported. 1254 1255config GPIO_KEMPLD 1256 tristate "Kontron ETX / COMexpress GPIO" 1257 depends on MFD_KEMPLD 1258 help 1259 This enables support for the PLD GPIO interface on some Kontron ETX 1260 and COMexpress (ETXexpress) modules. 1261 1262 This driver can also be built as a module. If so, the module will be 1263 called gpio-kempld. 1264 1265config GPIO_LP3943 1266 tristate "TI/National Semiconductor LP3943 GPIO expander" 1267 depends on MFD_LP3943 1268 help 1269 GPIO driver for LP3943 MFD. 1270 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1271 Open drain outputs are required for this usage. 1272 1273config GPIO_LP873X 1274 tristate "TI LP873X GPO" 1275 depends on MFD_TI_LP873X 1276 help 1277 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1278 on LP873X PMICs. 1279 1280 This driver can also be built as a module. If so, the module will be 1281 called gpio-lp873x. 1282 1283config GPIO_LP87565 1284 tristate "TI LP87565 GPIO" 1285 depends on MFD_TI_LP87565 1286 help 1287 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1288 on LP87565 PMICs. 1289 1290 This driver can also be built as a module. If so, the module will be 1291 called gpio-lp87565. 1292 1293config GPIO_MADERA 1294 tristate "Cirrus Logic Madera class codecs" 1295 depends on PINCTRL_MADERA 1296 help 1297 Support for GPIOs on Cirrus Logic Madera class codecs. 1298 1299config GPIO_MAX77620 1300 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1301 depends on MFD_MAX77620 1302 select GPIOLIB_IRQCHIP 1303 help 1304 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1305 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1306 driver also provides interrupt support for each of the GPIOs. 1307 Say yes here to enable the max77620 to be used as GPIO controller. 1308 1309config GPIO_MAX77650 1310 tristate "Maxim MAX77650/77651 GPIO support" 1311 depends on MFD_MAX77650 1312 help 1313 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1314 These chips have a single pin that can be configured as GPIO. 1315 1316config GPIO_PALMAS 1317 bool "TI PALMAS series PMICs GPIO" 1318 depends on MFD_PALMAS 1319 help 1320 Select this option to enable GPIO driver for the TI PALMAS 1321 series chip family. 1322 1323config GPIO_RC5T583 1324 bool "RICOH RC5T583 GPIO" 1325 depends on MFD_RC5T583 1326 help 1327 Select this option to enable GPIO driver for the Ricoh RC5T583 1328 chip family. 1329 This driver provides the support for driving/reading the GPIO pins 1330 of RC5T583 device through standard GPIO library. 1331 1332config GPIO_SL28CPLD 1333 tristate "Kontron sl28cpld GPIO support" 1334 depends on MFD_SL28CPLD || COMPILE_TEST 1335 select GPIO_REGMAP 1336 select GPIOLIB_IRQCHIP 1337 select REGMAP_IRQ 1338 help 1339 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1340 1341 This driver can also be built as a module. If so, the module will be 1342 called gpio-sl28cpld. 1343 1344config GPIO_STMPE 1345 bool "STMPE GPIOs" 1346 depends on MFD_STMPE 1347 depends on OF_GPIO 1348 select GPIOLIB_IRQCHIP 1349 help 1350 This enables support for the GPIOs found on the STMPE I/O 1351 Expanders. 1352 1353config GPIO_TC3589X 1354 bool "TC3589X GPIOs" 1355 depends on MFD_TC3589X 1356 depends on OF_GPIO 1357 select GPIOLIB_IRQCHIP 1358 help 1359 This enables support for the GPIOs found on the TC3589X 1360 I/O Expander. 1361 1362config GPIO_TIMBERDALE 1363 bool "Support for timberdale GPIO IP" 1364 depends on MFD_TIMBERDALE 1365 help 1366 Add support for the GPIO IP in the timberdale FPGA. 1367 1368config GPIO_TN48M_CPLD 1369 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1370 depends on MFD_TN48M_CPLD 1371 select GPIO_REGMAP 1372 help 1373 This enables support for the GPIOs found on the Delta 1374 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1375 they are input-only or output-only type. 1376 1377 This driver can also be built as a module. If so, the 1378 module will be called gpio-tn48m. 1379 1380config GPIO_TPS65086 1381 tristate "TI TPS65086 GPO" 1382 depends on MFD_TPS65086 1383 help 1384 This driver supports the GPO on TI TPS65086x PMICs. 1385 1386config GPIO_TPS65218 1387 tristate "TPS65218 GPIO" 1388 depends on MFD_TPS65218 1389 help 1390 Select this option to enable GPIO driver for the TPS65218 1391 chip family. 1392 1393config GPIO_TPS6586X 1394 bool "TPS6586X GPIO" 1395 depends on MFD_TPS6586X 1396 help 1397 Select this option to enable GPIO driver for the TPS6586X 1398 chip family. 1399 1400config GPIO_TPS65910 1401 bool "TPS65910 GPIO" 1402 depends on MFD_TPS65910 1403 help 1404 Select this option to enable GPIO driver for the TPS65910 1405 chip family. 1406 1407config GPIO_TPS65912 1408 tristate "TI TPS65912 GPIO" 1409 depends on MFD_TPS65912 1410 help 1411 This driver supports TPS65912 GPIO chip. 1412 1413config GPIO_TPS68470 1414 tristate "TPS68470 GPIO" 1415 depends on INTEL_SKL_INT3472 1416 help 1417 Select this option to enable GPIO driver for the TPS68470 1418 chip family. 1419 There are 7 GPIOs and few sensor-related GPIOs supported 1420 by the TPS68470. While the 7 GPIOs can be configured as 1421 input or output as appropriate, the sensor related GPIOs 1422 are "output only" GPIOs. 1423 1424config GPIO_TQMX86 1425 tristate "TQ-Systems QTMX86 GPIO" 1426 depends on MFD_TQMX86 || COMPILE_TEST 1427 depends on HAS_IOPORT_MAP 1428 select GPIOLIB_IRQCHIP 1429 help 1430 This driver supports GPIO on the TQMX86 IO controller. 1431 1432config GPIO_TWL4030 1433 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1434 depends on TWL4030_CORE 1435 help 1436 Say yes here to access the GPIO signals of various multi-function 1437 power management chips from Texas Instruments. 1438 1439config GPIO_TWL6040 1440 tristate "TWL6040 GPO" 1441 depends on TWL6040_CORE 1442 help 1443 Say yes here to access the GPO signals of twl6040 1444 audio chip from Texas Instruments. 1445 1446config GPIO_UCB1400 1447 tristate "Philips UCB1400 GPIO" 1448 depends on UCB1400_CORE 1449 help 1450 This enables support for the Philips UCB1400 GPIO pins. 1451 The UCB1400 is an AC97 audio codec. 1452 1453config GPIO_WHISKEY_COVE 1454 tristate "GPIO support for Whiskey Cove PMIC" 1455 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1456 select GPIOLIB_IRQCHIP 1457 help 1458 Support for GPIO pins on Whiskey Cove PMIC. 1459 1460 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1461 inside. 1462 1463 This driver can also be built as a module. If so, the module will be 1464 called gpio-wcove. 1465 1466config GPIO_WM831X 1467 tristate "WM831x GPIOs" 1468 depends on MFD_WM831X 1469 help 1470 Say yes here to access the GPIO signals of WM831x power management 1471 chips from Wolfson Microelectronics. 1472 1473config GPIO_WM8350 1474 tristate "WM8350 GPIOs" 1475 depends on MFD_WM8350 1476 help 1477 Say yes here to access the GPIO signals of WM8350 power management 1478 chips from Wolfson Microelectronics. 1479 1480config GPIO_WM8994 1481 tristate "WM8994 GPIOs" 1482 depends on MFD_WM8994 1483 help 1484 Say yes here to access the GPIO signals of WM8994 audio hub 1485 CODECs from Wolfson Microelectronics. 1486 1487endmenu 1488 1489menu "PCI GPIO expanders" 1490 depends on PCI 1491 1492config GPIO_AMD8111 1493 tristate "AMD 8111 GPIO driver" 1494 depends on X86 || COMPILE_TEST 1495 depends on HAS_IOPORT_MAP 1496 help 1497 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1498 1499 Note that usually system firmware/ACPI handles GPIO pins on their 1500 own and users might easily break their systems with uncareful usage 1501 of this driver! 1502 1503 If unsure, say N 1504 1505config GPIO_BT8XX 1506 tristate "BT8XX GPIO abuser" 1507 depends on VIDEO_BT848=n 1508 help 1509 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1510 as a cheap PCI GPIO card. 1511 1512 This chip can be found on Miro, Hauppauge and STB TV-cards. 1513 1514 The card needs to be physically altered for using it as a 1515 GPIO card. For more information on how to build a GPIO card 1516 from a BT8xx TV card, see the documentation file at 1517 Documentation/driver-api/gpio/bt8xxgpio.rst 1518 1519 If unsure, say N. 1520 1521config GPIO_MERRIFIELD 1522 tristate "Intel Merrifield GPIO support" 1523 depends on X86_INTEL_MID 1524 select GPIOLIB_IRQCHIP 1525 help 1526 Say Y here to support Intel Merrifield GPIO. 1527 1528config GPIO_MLXBF 1529 tristate "Mellanox BlueField SoC GPIO" 1530 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1531 select GPIO_GENERIC 1532 help 1533 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1534 1535config GPIO_MLXBF2 1536 tristate "Mellanox BlueField 2 SoC GPIO" 1537 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1538 select GPIO_GENERIC 1539 help 1540 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1541 1542config GPIO_ML_IOH 1543 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1544 depends on X86 || COMPILE_TEST 1545 select GENERIC_IRQ_CHIP 1546 help 1547 ML7213 is companion chip for Intel Atom E6xx series. 1548 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1549 Hub) which is for IVI (In-Vehicle Infotainment) use. 1550 This driver can access the IOH's GPIO device. 1551 1552config GPIO_PCH 1553 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1554 depends on X86_32 || MIPS || COMPILE_TEST 1555 select GENERIC_IRQ_CHIP 1556 help 1557 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1558 which is an IOH (Input/Output Hub) for x86 embedded processor. 1559 This driver can access PCH GPIO device. 1560 1561 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1562 Output Hub), ML7223 and ML7831. 1563 ML7223 IOH is for MP (Media Phone) use. 1564 ML7831 IOH is for general purpose use. 1565 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1566 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1567 1568config GPIO_PCI_IDIO_16 1569 tristate "ACCES PCI-IDIO-16 GPIO support" 1570 select GPIOLIB_IRQCHIP 1571 help 1572 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1573 generated when any of the inputs change state (low to high or high to 1574 low). Input filter control is not supported by this driver, and the 1575 input filters are deactivated by this driver. 1576 1577config GPIO_PCIE_IDIO_24 1578 tristate "ACCES PCIe-IDIO-24 GPIO support" 1579 select GPIOLIB_IRQCHIP 1580 help 1581 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1582 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1583 when any of the inputs change state (low to high or high to low). 1584 Input filter control is not supported by this driver, and the input 1585 filters are deactivated by this driver. 1586 1587config GPIO_RDC321X 1588 tristate "RDC R-321x GPIO support" 1589 select MFD_CORE 1590 select MFD_RDC321X 1591 help 1592 Support for the RDC R321x SoC GPIOs over southbridge 1593 PCI configuration space. 1594 1595config GPIO_SODAVILLE 1596 bool "Intel Sodaville GPIO support" 1597 depends on X86 && OF 1598 select GPIO_GENERIC 1599 select GENERIC_IRQ_CHIP 1600 help 1601 Say Y here to support Intel Sodaville GPIO. 1602 1603endmenu 1604 1605menu "SPI GPIO expanders" 1606 depends on SPI_MASTER 1607 1608config GPIO_74X164 1609 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1610 depends on OF_GPIO 1611 help 1612 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1613 shift registers. This driver can be used to provide access 1614 to more GPIO outputs. 1615 1616config GPIO_MAX3191X 1617 tristate "Maxim MAX3191x industrial serializer" 1618 select CRC8 1619 help 1620 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1621 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1622 chip to make 8 digital 24V inputs available via SPI. Supports 1623 CRC checksums to guard against electromagnetic interference, 1624 as well as undervoltage and overtemperature detection. 1625 1626config GPIO_MAX7301 1627 tristate "Maxim MAX7301 GPIO expander" 1628 select GPIO_MAX730X 1629 help 1630 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1631 1632config GPIO_MC33880 1633 tristate "Freescale MC33880 high-side/low-side switch" 1634 help 1635 SPI driver for Freescale MC33880 high-side/low-side switch. 1636 This provides GPIO interface supporting inputs and outputs. 1637 1638config GPIO_PISOSR 1639 tristate "Generic parallel-in/serial-out shift register" 1640 help 1641 GPIO driver for SPI compatible parallel-in/serial-out shift 1642 registers. These are input only devices. 1643 1644config GPIO_XRA1403 1645 tristate "EXAR XRA1403 16-bit GPIO expander" 1646 select REGMAP_SPI 1647 help 1648 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1649 1650config GPIO_MOXTET 1651 tristate "Turris Mox Moxtet bus GPIO expander" 1652 depends on MOXTET 1653 help 1654 Say yes here if you are building for the Turris Mox router. 1655 This is the driver needed for configuring the GPIOs via the Moxtet 1656 bus. For example the Mox module with SFP cage needs this driver 1657 so that phylink can use corresponding GPIOs. 1658 1659endmenu 1660 1661menu "USB GPIO expanders" 1662 depends on USB 1663 1664config GPIO_VIPERBOARD 1665 tristate "Viperboard GPIO a & b support" 1666 depends on MFD_VIPERBOARD 1667 help 1668 Say yes here to access the GPIO signals of Nano River 1669 Technologies Viperboard. There are two GPIO chips on the 1670 board: gpioa and gpiob. 1671 See viperboard API specification and Nano 1672 River Tech's viperboard.h for detailed meaning 1673 of the module parameters. 1674 1675endmenu 1676 1677menu "Virtual GPIO drivers" 1678 1679config GPIO_AGGREGATOR 1680 tristate "GPIO Aggregator" 1681 help 1682 Say yes here to enable the GPIO Aggregator, which provides a way to 1683 aggregate existing GPIO lines into a new virtual GPIO chip. 1684 This can serve the following purposes: 1685 - Assign permissions for a collection of GPIO lines to a user, 1686 - Export a collection of GPIO lines to a virtual machine, 1687 - Provide a generic driver for a GPIO-operated device in an 1688 industrial control context, to be operated from userspace using 1689 the GPIO chardev interface. 1690 1691config GPIO_MOCKUP 1692 tristate "GPIO Testing Driver" 1693 select IRQ_SIM 1694 help 1695 This enables GPIO Testing driver, which provides a way to test GPIO 1696 subsystem through sysfs (or char device) and debugfs. 1697 User could use it through the script in 1698 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1699 it. 1700 1701config GPIO_VIRTIO 1702 tristate "VirtIO GPIO support" 1703 depends on VIRTIO 1704 select GPIOLIB_IRQCHIP 1705 help 1706 Say Y here to enable guest support for virtio-based GPIO controllers. 1707 1708 These virtual GPIOs can be routed to real GPIOs or attached to 1709 simulators on the host (like QEMU). 1710 1711config GPIO_SIM 1712 tristate "GPIO Simulator Module" 1713 select IRQ_SIM 1714 select CONFIGFS_FS 1715 help 1716 This enables the GPIO simulator - a configfs-based GPIO testing 1717 driver. 1718 1719endmenu 1720 1721endif 1722