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 ARM # For <asm/mach-types.h> 357 depends on ARCH_IXP4XX 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. 366config GPIO_LOGICVC 367 tristate "Xylon LogiCVC GPIO support" 368 depends on MFD_SYSCON && OF 369 help 370 Say yes here to support GPIO functionality of the Xylon LogiCVC 371 programmable logic block. 372 373config GPIO_LOONGSON 374 bool "Loongson-2/3 GPIO support" 375 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 376 help 377 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 378 379config GPIO_LPC18XX 380 tristate "NXP LPC18XX/43XX GPIO support" 381 default y if ARCH_LPC18XX 382 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 383 select IRQ_DOMAIN_HIERARCHY 384 help 385 Select this option to enable GPIO driver for 386 NXP LPC18XX/43XX devices. 387 388config GPIO_LPC32XX 389 tristate "NXP LPC32XX GPIO support" 390 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 391 help 392 Select this option to enable GPIO driver for 393 NXP LPC32XX devices. 394 395config GPIO_MB86S7X 396 tristate "GPIO support for Fujitsu MB86S7x Platforms" 397 help 398 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 399 400config GPIO_MENZ127 401 tristate "MEN 16Z127 GPIO support" 402 depends on MCB 403 select GPIO_GENERIC 404 help 405 Say yes here to support the MEN 16Z127 GPIO Controller. 406 407config GPIO_MM_LANTIQ 408 bool "Lantiq Memory mapped GPIOs" 409 depends on LANTIQ && SOC_XWAY 410 help 411 This enables support for memory mapped GPIOs on the External Bus Unit 412 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 413 created by attaching a 16-bit latch to the bus. 414 415config GPIO_MPC5200 416 def_bool y 417 depends on PPC_MPC52xx 418 419config GPIO_MPC8XXX 420 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 421 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 422 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 423 COMPILE_TEST 424 select GPIO_GENERIC 425 select IRQ_DOMAIN 426 help 427 Say Y here if you're going to use hardware that connects to the 428 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 429 430config GPIO_MT7621 431 bool "Mediatek MT7621 GPIO Support" 432 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 433 depends on OF_GPIO 434 select GPIO_GENERIC 435 select GPIOLIB_IRQCHIP 436 help 437 Say yes here to support the Mediatek MT7621 SoC GPIO device. 438 439config GPIO_MVEBU 440 def_bool y 441 depends on PLAT_ORION || ARCH_MVEBU 442 depends on OF_GPIO 443 select GENERIC_IRQ_CHIP 444 select REGMAP_MMIO 445 446config GPIO_MXC 447 tristate "i.MX GPIO support" 448 depends on ARCH_MXC || COMPILE_TEST 449 select GPIO_GENERIC 450 select GENERIC_IRQ_CHIP 451 452config GPIO_MXS 453 bool "Freescale MXS GPIO support" if COMPILE_TEST 454 depends on ARCH_MXS || COMPILE_TEST 455 default y if ARCH_MXS 456 select GPIO_GENERIC 457 select GENERIC_IRQ_CHIP 458 459config GPIO_OCTEON 460 tristate "Cavium OCTEON GPIO" 461 depends on CAVIUM_OCTEON_SOC 462 default y 463 help 464 Say yes here to support the on-chip GPIO lines on the OCTEON 465 family of SOCs. 466 467config GPIO_OMAP 468 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 469 default y if ARCH_OMAP 470 depends on ARM 471 select GENERIC_IRQ_CHIP 472 select GPIOLIB_IRQCHIP 473 help 474 Say yes here to enable GPIO support for TI OMAP SoCs. 475 476config GPIO_PL061 477 tristate "PrimeCell PL061 GPIO support" 478 depends on ARM_AMBA 479 select IRQ_DOMAIN 480 select GPIOLIB_IRQCHIP 481 help 482 Say yes here to support the PrimeCell PL061 GPIO device. 483 484config GPIO_PMIC_EIC_SPRD 485 tristate "Spreadtrum PMIC EIC support" 486 depends on MFD_SC27XX_PMIC || COMPILE_TEST 487 depends on OF_GPIO 488 select GPIOLIB_IRQCHIP 489 help 490 Say yes here to support Spreadtrum PMIC EIC device. 491 492config GPIO_PXA 493 bool "PXA GPIO support" 494 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 495 help 496 Say yes here to support the PXA GPIO device. 497 498config GPIO_RCAR 499 tristate "Renesas R-Car and RZ/G GPIO support" 500 depends on ARCH_RENESAS || COMPILE_TEST 501 select GPIOLIB_IRQCHIP 502 help 503 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 504 505config GPIO_RDA 506 bool "RDA Micro GPIO controller support" 507 depends on ARCH_RDA || COMPILE_TEST 508 depends on OF_GPIO 509 select GPIO_GENERIC 510 select GPIOLIB_IRQCHIP 511 help 512 Say Y here to support RDA Micro GPIO controller. 513 514config GPIO_REALTEK_OTTO 515 tristate "Realtek Otto GPIO support" 516 depends on MACH_REALTEK_RTL 517 default MACH_REALTEK_RTL 518 select GPIO_GENERIC 519 select GPIOLIB_IRQCHIP 520 help 521 The GPIO controller on the Otto MIPS platform supports up to two 522 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 523 are grouped in four 8-bit wide ports. 524 525 When built as a module, the module will be called realtek_otto_gpio. 526 527config GPIO_REG 528 bool 529 help 530 A 32-bit single register GPIO fixed in/out implementation. This 531 can be used to represent any register as a set of GPIO signals. 532 533config GPIO_ROCKCHIP 534 tristate "Rockchip GPIO support" 535 depends on ARCH_ROCKCHIP || COMPILE_TEST 536 select GENERIC_IRQ_CHIP 537 select GPIOLIB_IRQCHIP 538 default ARCH_ROCKCHIP 539 help 540 Say yes here to support GPIO on Rockchip SoCs. 541 542config GPIO_SAMA5D2_PIOBU 543 tristate "SAMA5D2 PIOBU GPIO support" 544 depends on MFD_SYSCON 545 depends on OF_GPIO 546 select GPIO_SYSCON 547 help 548 Say yes here to use the PIOBU pins as GPIOs. 549 550 PIOBU pins on the SAMA5D2 can be used as GPIOs. 551 The difference from regular GPIOs is that they 552 maintain their value during backup/self-refresh. 553 554config GPIO_SIFIVE 555 bool "SiFive GPIO support" 556 depends on OF_GPIO 557 select IRQ_DOMAIN_HIERARCHY 558 select GPIO_GENERIC 559 select GPIOLIB_IRQCHIP 560 select REGMAP_MMIO 561 help 562 Say yes here to support the GPIO device on SiFive SoCs. 563 564config GPIO_SIOX 565 tristate "SIOX GPIO support" 566 depends on SIOX 567 select GPIOLIB_IRQCHIP 568 help 569 Say yes here to support SIOX I/O devices. These are units connected 570 via a SIOX bus and have a number of fixed-direction I/O lines. 571 572config GPIO_SNPS_CREG 573 bool "Synopsys GPIO via CREG (Control REGisters) driver" 574 depends on ARC || COMPILE_TEST 575 depends on OF_GPIO 576 help 577 This driver supports GPIOs via CREG on various Synopsys SoCs. 578 This is a single-register MMIO GPIO driver for complex cases 579 where only several fields in register belong to GPIO lines and 580 each GPIO line owns a field with different length and on/off value. 581 582config GPIO_SPEAR_SPICS 583 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 584 depends on PLAT_SPEAR 585 select GENERIC_IRQ_CHIP 586 help 587 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 588 589config GPIO_SPRD 590 tristate "Spreadtrum GPIO support" 591 depends on ARCH_SPRD || COMPILE_TEST 592 depends on OF_GPIO 593 select GPIOLIB_IRQCHIP 594 help 595 Say yes here to support Spreadtrum GPIO device. 596 597config GPIO_STA2X11 598 bool "STA2x11/ConneXt GPIO support" 599 depends on MFD_STA2X11 600 select GENERIC_IRQ_CHIP 601 help 602 Say yes here to support the STA2x11/ConneXt GPIO device. 603 The GPIO module has 128 GPIO pins with alternate functions. 604 605config GPIO_STP_XWAY 606 bool "XWAY STP GPIOs" 607 depends on SOC_XWAY || COMPILE_TEST 608 depends on OF_GPIO 609 help 610 This enables support for the Serial To Parallel (STP) unit found on 611 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 612 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 613 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 614 phy status. 615 616config GPIO_SYSCON 617 tristate "GPIO based on SYSCON" 618 depends on MFD_SYSCON && OF 619 help 620 Say yes here to support GPIO functionality though SYSCON driver. 621 622config GPIO_TB10X 623 bool 624 select GPIO_GENERIC 625 select GENERIC_IRQ_CHIP 626 select OF_GPIO 627 628config GPIO_TEGRA 629 tristate "NVIDIA Tegra GPIO support" 630 default ARCH_TEGRA 631 depends on ARCH_TEGRA || COMPILE_TEST 632 depends on OF_GPIO 633 select GPIOLIB_IRQCHIP 634 select IRQ_DOMAIN_HIERARCHY 635 help 636 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 637 638config GPIO_TEGRA186 639 tristate "NVIDIA Tegra186 GPIO support" 640 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 641 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 642 depends on OF_GPIO 643 select GPIOLIB_IRQCHIP 644 select IRQ_DOMAIN_HIERARCHY 645 help 646 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 647 648config GPIO_TS4800 649 tristate "TS-4800 DIO blocks and compatibles" 650 depends on OF_GPIO 651 depends on SOC_IMX51 || COMPILE_TEST 652 select GPIO_GENERIC 653 help 654 This driver support TS-4800 FPGA GPIO controllers. 655 656config GPIO_THUNDERX 657 tristate "Cavium ThunderX/OCTEON-TX GPIO" 658 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 659 depends on PCI_MSI 660 select GPIOLIB_IRQCHIP 661 select IRQ_DOMAIN_HIERARCHY 662 select IRQ_FASTEOI_HIERARCHY_HANDLERS 663 help 664 Say yes here to support the on-chip GPIO lines on the ThunderX 665 and OCTEON-TX families of SoCs. 666 667config GPIO_UNIPHIER 668 tristate "UniPhier GPIO support" 669 depends on ARCH_UNIPHIER || COMPILE_TEST 670 depends on OF_GPIO 671 select IRQ_DOMAIN_HIERARCHY 672 help 673 Say yes here to support UniPhier GPIOs. 674 675config GPIO_VF610 676 def_bool y 677 depends on ARCH_MXC && SOC_VF610 678 select GPIOLIB_IRQCHIP 679 help 680 Say yes here to support Vybrid vf610 GPIOs. 681 682config GPIO_VISCONTI 683 tristate "Toshiba Visconti GPIO support" 684 depends on ARCH_VISCONTI || COMPILE_TEST 685 depends on OF_GPIO 686 select GPIOLIB_IRQCHIP 687 select GPIO_GENERIC 688 select IRQ_DOMAIN_HIERARCHY 689 help 690 Say yes here to support GPIO on Tohisba Visconti. 691 692config GPIO_VR41XX 693 tristate "NEC VR4100 series General-purpose I/O Unit support" 694 depends on CPU_VR41XX 695 help 696 Say yes here to support the NEC VR4100 series General-purpose I/O Unit. 697 698config GPIO_VX855 699 tristate "VIA VX855/VX875 GPIO" 700 depends on (X86 || COMPILE_TEST) && PCI 701 select MFD_CORE 702 select MFD_VX855 703 help 704 Support access to the VX855/VX875 GPIO lines through the GPIO library. 705 706 This driver provides common support for accessing the device. 707 Additional drivers must be enabled in order to use the 708 functionality of the device. 709 710config GPIO_WCD934X 711 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 712 depends on MFD_WCD934X && OF_GPIO 713 help 714 This driver is to support GPIO block found on the Qualcomm Technologies 715 Inc WCD9340/WCD9341 Audio Codec. 716 717config GPIO_XGENE 718 bool "APM X-Gene GPIO controller support" 719 depends on ARM64 && OF_GPIO 720 help 721 This driver is to support the GPIO block within the APM X-Gene SoC 722 platform's generic flash controller. The GPIO pins are muxed with 723 the generic flash controller's address and data pins. Say yes 724 here to enable the GFC GPIO functionality. 725 726config GPIO_XGENE_SB 727 tristate "APM X-Gene GPIO standby controller support" 728 depends on (ARCH_XGENE || COMPILE_TEST) 729 select GPIO_GENERIC 730 select GPIOLIB_IRQCHIP 731 select IRQ_DOMAIN_HIERARCHY 732 help 733 This driver supports the GPIO block within the APM X-Gene 734 Standby Domain. Say yes here to enable the GPIO functionality. 735 736config GPIO_XILINX 737 tristate "Xilinx GPIO support" 738 select GPIOLIB_IRQCHIP 739 depends on OF_GPIO 740 help 741 Say yes here to support the Xilinx FPGA GPIO device. 742 743config GPIO_XLP 744 tristate "Cavium ThunderX2 GPIO support" 745 depends on ARCH_THUNDER2 || COMPILE_TEST 746 select GPIOLIB_IRQCHIP 747 help 748 This driver provides support for GPIO interface on Cavium's ThunderX2 749 CN99XX SoCs (Originally from Netlogic XLP). 750 751 If unsure, say N. 752 753config GPIO_XTENSA 754 bool "Xtensa GPIO32 support" 755 depends on XTENSA 756 depends on HAVE_XTENSA_GPIO32 757 depends on !SMP 758 help 759 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 760 and EXPSTATE (output) ports. 761 762config GPIO_ZEVIO 763 bool "LSI ZEVIO SoC memory mapped GPIOs" 764 depends on ARM && OF_GPIO 765 help 766 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 767 768config GPIO_ZYNQ 769 tristate "Xilinx Zynq GPIO support" 770 depends on ARCH_ZYNQ || ARCH_ZYNQMP 771 select GPIOLIB_IRQCHIP 772 help 773 Say yes here to support Xilinx Zynq GPIO controller. 774 775config GPIO_ZYNQMP_MODEPIN 776 tristate "ZynqMP ps-mode pin GPIO configuration driver" 777 depends on ZYNQMP_FIRMWARE 778 default ZYNQMP_FIRMWARE 779 help 780 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 781 driver. 782 783 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 784 is 4-bits boot mode pins. It sets and gets the status of 785 the ps-mode pin. Every pin can be configured as input/output. 786 787config GPIO_LOONGSON1 788 tristate "Loongson1 GPIO support" 789 depends on MACH_LOONGSON32 790 select GPIO_GENERIC 791 help 792 Say Y or M here to support GPIO on Loongson1 SoCs. 793 794config GPIO_AMD_FCH 795 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 796 help 797 This option enables driver for GPIO on AMD's Fusion Controller Hub, 798 as found on G-series SOCs (e.g. GX-412TC). 799 800 Note: This driver doesn't register itself automatically, as it 801 needs to be provided with platform-specific configuration. 802 (See e.g. CONFIG_PCENGINES_APU2.) 803 804config GPIO_MSC313 805 bool "MStar MSC313 GPIO support" 806 depends on ARCH_MSTARV7 807 default ARCH_MSTARV7 808 select GPIOLIB_IRQCHIP 809 select IRQ_DOMAIN_HIERARCHY 810 help 811 Say Y here to support the main GPIO block on MStar/SigmaStar 812 ARMv7-based SoCs. 813 814config GPIO_IDT3243X 815 tristate "IDT 79RC3243X GPIO support" 816 depends on MIKROTIK_RB532 || COMPILE_TEST 817 select GPIO_GENERIC 818 select GPIOLIB_IRQCHIP 819 help 820 Select this option to enable GPIO driver for 821 IDT 79RC3243X-based devices like Mikrotik RB532. 822 823 To compile this driver as a module, choose M here: the module will 824 be called gpio-idt3243x. 825 826endmenu 827 828menu "Port-mapped I/O GPIO drivers" 829 depends on X86 # Unconditional I/O space access 830 831config GPIO_104_DIO_48E 832 tristate "ACCES 104-DIO-48E GPIO support" 833 depends on PC104 834 select ISA_BUS_API 835 select GPIOLIB_IRQCHIP 836 help 837 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 838 104-DIO-24E). The base port addresses for the devices may be 839 configured via the base module parameter. The interrupt line numbers 840 for the devices may be configured via the irq module parameter. 841 842config GPIO_104_IDIO_16 843 tristate "ACCES 104-IDIO-16 GPIO support" 844 depends on PC104 845 select ISA_BUS_API 846 select GPIOLIB_IRQCHIP 847 help 848 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 849 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 850 base port addresses for the devices may be configured via the base 851 module parameter. The interrupt line numbers for the devices may be 852 configured via the irq module parameter. 853 854config GPIO_104_IDI_48 855 tristate "ACCES 104-IDI-48 GPIO support" 856 depends on PC104 857 select ISA_BUS_API 858 select GPIOLIB_IRQCHIP 859 help 860 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 861 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 862 the devices may be configured via the base module parameter. The 863 interrupt line numbers for the devices may be configured via the irq 864 module parameter. 865 866config GPIO_F7188X 867 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 868 help 869 This option enables support for GPIOs found on Fintek Super-I/O 870 chips F71869, F71869A, F71882FG, F71889F and F81866. 871 872 To compile this driver as a module, choose M here: the module will 873 be called f7188x-gpio. 874 875config GPIO_GPIO_MM 876 tristate "Diamond Systems GPIO-MM GPIO support" 877 depends on PC104 878 select ISA_BUS_API 879 help 880 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 881 882 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 883 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 884 support for these 48 channels of digital I/O. 885 886 The base port addresses for the devices may be configured via the base 887 array module parameter. 888 889config GPIO_IT87 890 tristate "IT87xx GPIO support" 891 help 892 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 893 894 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 895 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 896 well. 897 898 To compile this driver as a module, choose M here: the module will 899 be called gpio_it87. 900 901config GPIO_SCH 902 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 903 depends on (X86 || COMPILE_TEST) && ACPI 904 depends on LPC_SCH 905 select GPIOLIB_IRQCHIP 906 help 907 Say yes here to support GPIO interface on Intel Poulsbo SCH, 908 Intel Tunnel Creek processor, Intel Centerton processor or 909 Intel Quark X1000 SoC. 910 911 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 912 powered by the core power rail and are turned off during sleep 913 modes (S3 and higher). The remaining four GPIOs are powered by 914 the Intel SCH suspend power supply. These GPIOs remain 915 active during S3. The suspend-powered GPIOs can be used to wake the 916 system from the Suspend-to-RAM state. 917 918 The Intel Tunnel Creek processor has 5 GPIOs powered by the 919 core power rail and 9 from suspend power supply. 920 921 The Intel Centerton processor has a total of 30 GPIO pins. 922 Twenty-one are powered by the core power rail and 9 from the 923 suspend power supply. 924 925 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 926 power well and 6 from the suspend power well. 927 928config GPIO_SCH311X 929 tristate "SMSC SCH311x SuperI/O GPIO" 930 help 931 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 932 SCH3116 "Super I/O" chipsets. 933 934 To compile this driver as a module, choose M here: the module will 935 be called gpio-sch311x. 936 937config GPIO_TS5500 938 tristate "TS-5500 DIO blocks and compatibles" 939 depends on TS5500 || COMPILE_TEST 940 help 941 This driver supports Digital I/O exposed by pin blocks found on some 942 Technologic Systems platforms. It includes, but is not limited to, 3 943 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 944 LCD port. 945 946config GPIO_WINBOND 947 tristate "Winbond Super I/O GPIO support" 948 select ISA_BUS_API 949 help 950 This option enables support for GPIOs found on Winbond Super I/O 951 chips. 952 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 953 supported. 954 955 You will need to provide a module parameter "gpios", or a 956 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 957 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 958 959 To compile this driver as a module, choose M here: the module will 960 be called gpio-winbond. 961 962config GPIO_WS16C48 963 tristate "WinSystems WS16C48 GPIO support" 964 select ISA_BUS_API 965 select GPIOLIB_IRQCHIP 966 help 967 Enables GPIO support for the WinSystems WS16C48. The base port 968 addresses for the devices may be configured via the base module 969 parameter. The interrupt line numbers for the devices may be 970 configured via the irq module parameter. 971 972endmenu 973 974menu "I2C GPIO expanders" 975 depends on I2C 976 977config GPIO_ADP5588 978 tristate "ADP5588 I2C GPIO expander" 979 help 980 This option enables support for 18 GPIOs found 981 on Analog Devices ADP5588 GPIO Expanders. 982 983config GPIO_ADP5588_IRQ 984 bool "Interrupt controller support for ADP5588" 985 depends on GPIO_ADP5588=y 986 select GPIOLIB_IRQCHIP 987 help 988 Say yes here to enable the adp5588 to be used as an interrupt 989 controller. It requires the driver to be built in the kernel. 990 991config GPIO_ADNP 992 tristate "Avionic Design N-bit GPIO expander" 993 depends on OF_GPIO 994 select GPIOLIB_IRQCHIP 995 help 996 This option enables support for N GPIOs found on Avionic Design 997 I2C GPIO expanders. The register space will be extended by powers 998 of two, so the controller will need to accommodate for that. For 999 example: if a controller provides 48 pins, 6 registers will be 1000 enough to represent all pins, but the driver will assume a 1001 register layout for 64 pins (8 registers). 1002 1003config GPIO_GW_PLD 1004 tristate "Gateworks PLD GPIO Expander" 1005 depends on OF_GPIO 1006 help 1007 Say yes here to provide access to the Gateworks I2C PLD GPIO 1008 Expander. This is used at least on the Cambria GW2358-4. 1009 1010config GPIO_MAX7300 1011 tristate "Maxim MAX7300 GPIO expander" 1012 select GPIO_MAX730X 1013 help 1014 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1015 1016config GPIO_MAX732X 1017 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1018 help 1019 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1020 Port Expanders. Each IO port on these chips has a fixed role of 1021 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1022 Input and Output (designed by 'P'). The combinations are listed 1023 below: 1024 1025 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1026 max7322 (4I4O), max7323 (4P4O) 1027 1028 16 bits: max7324 (8I8O), max7325 (8P8O), 1029 max7326 (4I12O), max7327 (4P12O) 1030 1031 Board setup code must specify the model to use, and the start 1032 number for these GPIOs. 1033 1034config GPIO_MAX732X_IRQ 1035 bool "Interrupt controller support for MAX732x" 1036 depends on GPIO_MAX732X=y 1037 select GPIOLIB_IRQCHIP 1038 help 1039 Say yes here to enable the max732x to be used as an interrupt 1040 controller. It requires the driver to be built in the kernel. 1041 1042config GPIO_PCA953X 1043 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1044 select REGMAP_I2C 1045 help 1046 Say yes here to provide access to several register-oriented 1047 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1048 models include: 1049 1050 4 bits: pca9536, pca9537 1051 1052 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1053 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1054 1055 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1056 tca6416 1057 1058 24 bits: tca6424 1059 1060 40 bits: pca9505, pca9698 1061 1062config GPIO_PCA953X_IRQ 1063 bool "Interrupt controller support for PCA953x" 1064 depends on GPIO_PCA953X 1065 select GPIOLIB_IRQCHIP 1066 help 1067 Say yes here to enable the pca953x to be used as an interrupt 1068 controller. 1069 1070config GPIO_PCA9570 1071 tristate "PCA9570 4-Bit I2C GPO expander" 1072 help 1073 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1074 1075 To compile this driver as a module, choose M here: the module will 1076 be called gpio-pca9570. 1077 1078config GPIO_PCF857X 1079 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1080 select GPIOLIB_IRQCHIP 1081 select IRQ_DOMAIN 1082 help 1083 Say yes here to provide access to most "quasi-bidirectional" I2C 1084 GPIO expanders used for additional digital outputs or inputs. 1085 Most of these parts are from NXP, though TI is a second source for 1086 some of them. Compatible models include: 1087 1088 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1089 pca9670, pca9672, pca9674, pca9674a, 1090 max7328, max7329 1091 1092 16 bits: pcf8575, pcf8575c, pca8575, 1093 pca9671, pca9673, pca9675 1094 1095 Your board setup code will need to declare the expanders in 1096 use, and assign numbers to the GPIOs they expose. Those GPIOs 1097 can then be used from drivers and other kernel code, just like 1098 other GPIOs, but only accessible from task contexts. 1099 1100 This driver provides an in-kernel interface to those GPIOs using 1101 platform-neutral GPIO calls. 1102 1103config GPIO_TPIC2810 1104 tristate "TPIC2810 8-Bit I2C GPO expander" 1105 help 1106 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1107 1108 To compile this driver as a module, choose M here: the module will 1109 be called gpio-tpic2810. 1110 1111config GPIO_TS4900 1112 tristate "Technologic Systems FPGA I2C GPIO" 1113 depends on SOC_IMX6 || COMPILE_TEST 1114 select REGMAP_I2C 1115 help 1116 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1117 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1118 1119endmenu 1120 1121menu "MFD GPIO expanders" 1122 1123config GPIO_ADP5520 1124 tristate "GPIO Support for ADP5520 PMIC" 1125 depends on PMIC_ADP5520 1126 help 1127 This option enables support for on-chip GPIO found 1128 on Analog Devices ADP5520 PMICs. 1129 1130config GPIO_ALTERA_A10SR 1131 tristate "Altera Arria10 System Resource GPIO" 1132 depends on MFD_ALTERA_A10SR 1133 help 1134 Driver for Arria10 Development Kit GPIO expansion which 1135 includes reads of pushbuttons and DIP switches as well 1136 as writes to LEDs. 1137 1138config GPIO_ARIZONA 1139 tristate "Wolfson Microelectronics Arizona class devices" 1140 depends on MFD_ARIZONA 1141 help 1142 Support for GPIOs on Wolfson Arizona class devices. 1143 1144config GPIO_BD71815 1145 tristate "ROHM BD71815 PMIC GPIO support" 1146 depends on MFD_ROHM_BD71828 1147 help 1148 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1149 available on the ROHM PMIC. 1150 1151 This driver can also be built as a module. If so, the module 1152 will be called gpio-bd71815. 1153 1154config GPIO_BD71828 1155 tristate "ROHM BD71828 GPIO support" 1156 depends on MFD_ROHM_BD71828 1157 help 1158 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1159 available on the ROHM PMIC in total. The GPIOs are limited to 1160 outputs only and pins must be configured to GPIO outputs by 1161 OTP. Enable this only if you want to use these pins as outputs. 1162 1163 This driver can also be built as a module. If so, the module 1164 will be called gpio-bd71828. 1165 1166config GPIO_BD9571MWV 1167 tristate "ROHM BD9571 GPIO support" 1168 depends on MFD_BD9571MWV 1169 help 1170 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1171 available on the ROHM PMIC in total, both of which can also 1172 generate interrupts. 1173 1174 This driver can also be built as a module. If so, the module 1175 will be called gpio-bd9571mwv. 1176 1177config GPIO_CRYSTAL_COVE 1178 tristate "GPIO support for Crystal Cove PMIC" 1179 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1180 select GPIOLIB_IRQCHIP 1181 help 1182 Support for GPIO pins on Crystal Cove PMIC. 1183 1184 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1185 inside. 1186 1187 This driver can also be built as a module. If so, the module will be 1188 called gpio-crystalcove. 1189 1190config GPIO_CS5535 1191 tristate "AMD CS5535/CS5536 GPIO support" 1192 depends on X86 || MIPS || COMPILE_TEST 1193 depends on MFD_CS5535 1194 help 1195 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1196 can be used for quite a number of things. The CS5535/6 is found on 1197 AMD Geode and Lemote Yeeloong devices. 1198 1199 If unsure, say N. 1200 1201config GPIO_DA9052 1202 tristate "Dialog DA9052 GPIO" 1203 depends on PMIC_DA9052 1204 help 1205 Say yes here to enable the GPIO driver for the DA9052 chip. 1206 1207config GPIO_DA9055 1208 tristate "Dialog Semiconductor DA9055 GPIO" 1209 depends on MFD_DA9055 1210 help 1211 Say yes here to enable the GPIO driver for the DA9055 chip. 1212 1213 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1214 be controlled by this driver. 1215 1216 If driver is built as a module it will be called gpio-da9055. 1217 1218config GPIO_DLN2 1219 tristate "Diolan DLN2 GPIO support" 1220 depends on MFD_DLN2 1221 select GPIOLIB_IRQCHIP 1222 1223 help 1224 Select this option to enable GPIO driver for the Diolan DLN2 1225 board. 1226 1227 This driver can also be built as a module. If so, the module 1228 will be called gpio-dln2. 1229 1230config HTC_EGPIO 1231 bool "HTC EGPIO support" 1232 depends on ARM 1233 help 1234 This driver supports the CPLD egpio chip present on 1235 several HTC phones. It provides basic support for input 1236 pins, output pins, and IRQs. 1237 1238config GPIO_JANZ_TTL 1239 tristate "Janz VMOD-TTL Digital IO Module" 1240 depends on MFD_JANZ_CMODIO 1241 help 1242 This enables support for the Janz VMOD-TTL Digital IO module. 1243 This driver provides support for driving the pins in output 1244 mode only. Input mode is not supported. 1245 1246config GPIO_KEMPLD 1247 tristate "Kontron ETX / COMexpress GPIO" 1248 depends on MFD_KEMPLD 1249 help 1250 This enables support for the PLD GPIO interface on some Kontron ETX 1251 and COMexpress (ETXexpress) modules. 1252 1253 This driver can also be built as a module. If so, the module will be 1254 called gpio-kempld. 1255 1256config GPIO_LP3943 1257 tristate "TI/National Semiconductor LP3943 GPIO expander" 1258 depends on MFD_LP3943 1259 help 1260 GPIO driver for LP3943 MFD. 1261 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1262 Open drain outputs are required for this usage. 1263 1264config GPIO_LP873X 1265 tristate "TI LP873X GPO" 1266 depends on MFD_TI_LP873X 1267 help 1268 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1269 on LP873X PMICs. 1270 1271 This driver can also be built as a module. If so, the module will be 1272 called gpio-lp873x. 1273 1274config GPIO_LP87565 1275 tristate "TI LP87565 GPIO" 1276 depends on MFD_TI_LP87565 1277 help 1278 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1279 on LP87565 PMICs. 1280 1281 This driver can also be built as a module. If so, the module will be 1282 called gpio-lp87565. 1283 1284config GPIO_MADERA 1285 tristate "Cirrus Logic Madera class codecs" 1286 depends on PINCTRL_MADERA 1287 help 1288 Support for GPIOs on Cirrus Logic Madera class codecs. 1289 1290config GPIO_MAX77620 1291 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1292 depends on MFD_MAX77620 1293 select GPIOLIB_IRQCHIP 1294 help 1295 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1296 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1297 driver also provides interrupt support for each of the GPIOs. 1298 Say yes here to enable the max77620 to be used as GPIO controller. 1299 1300config GPIO_MAX77650 1301 tristate "Maxim MAX77650/77651 GPIO support" 1302 depends on MFD_MAX77650 1303 help 1304 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1305 These chips have a single pin that can be configured as GPIO. 1306 1307config GPIO_PALMAS 1308 bool "TI PALMAS series PMICs GPIO" 1309 depends on MFD_PALMAS 1310 help 1311 Select this option to enable GPIO driver for the TI PALMAS 1312 series chip family. 1313 1314config GPIO_RC5T583 1315 bool "RICOH RC5T583 GPIO" 1316 depends on MFD_RC5T583 1317 help 1318 Select this option to enable GPIO driver for the Ricoh RC5T583 1319 chip family. 1320 This driver provides the support for driving/reading the GPIO pins 1321 of RC5T583 device through standard GPIO library. 1322 1323config GPIO_SL28CPLD 1324 tristate "Kontron sl28cpld GPIO support" 1325 depends on MFD_SL28CPLD || COMPILE_TEST 1326 select GPIO_REGMAP 1327 select GPIOLIB_IRQCHIP 1328 select REGMAP_IRQ 1329 help 1330 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1331 1332 This driver can also be built as a module. If so, the module will be 1333 called gpio-sl28cpld. 1334 1335config GPIO_STMPE 1336 bool "STMPE GPIOs" 1337 depends on MFD_STMPE 1338 depends on OF_GPIO 1339 select GPIOLIB_IRQCHIP 1340 help 1341 This enables support for the GPIOs found on the STMPE I/O 1342 Expanders. 1343 1344config GPIO_TC3589X 1345 bool "TC3589X GPIOs" 1346 depends on MFD_TC3589X 1347 depends on OF_GPIO 1348 select GPIOLIB_IRQCHIP 1349 help 1350 This enables support for the GPIOs found on the TC3589X 1351 I/O Expander. 1352 1353config GPIO_TIMBERDALE 1354 bool "Support for timberdale GPIO IP" 1355 depends on MFD_TIMBERDALE 1356 help 1357 Add support for the GPIO IP in the timberdale FPGA. 1358 1359config GPIO_TN48M_CPLD 1360 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1361 depends on MFD_TN48M_CPLD 1362 select GPIO_REGMAP 1363 help 1364 This enables support for the GPIOs found on the Delta 1365 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1366 they are input-only or output-only type. 1367 1368 This driver can also be built as a module. If so, the 1369 module will be called gpio-tn48m. 1370 1371config GPIO_TPS65086 1372 tristate "TI TPS65086 GPO" 1373 depends on MFD_TPS65086 1374 help 1375 This driver supports the GPO on TI TPS65086x PMICs. 1376 1377config GPIO_TPS65218 1378 tristate "TPS65218 GPIO" 1379 depends on MFD_TPS65218 1380 help 1381 Select this option to enable GPIO driver for the TPS65218 1382 chip family. 1383 1384config GPIO_TPS6586X 1385 bool "TPS6586X GPIO" 1386 depends on MFD_TPS6586X 1387 help 1388 Select this option to enable GPIO driver for the TPS6586X 1389 chip family. 1390 1391config GPIO_TPS65910 1392 bool "TPS65910 GPIO" 1393 depends on MFD_TPS65910 1394 help 1395 Select this option to enable GPIO driver for the TPS65910 1396 chip family. 1397 1398config GPIO_TPS65912 1399 tristate "TI TPS65912 GPIO" 1400 depends on MFD_TPS65912 1401 help 1402 This driver supports TPS65912 GPIO chip. 1403 1404config GPIO_TPS68470 1405 tristate "TPS68470 GPIO" 1406 depends on INTEL_SKL_INT3472 1407 help 1408 Select this option to enable GPIO driver for the TPS68470 1409 chip family. 1410 There are 7 GPIOs and few sensor-related GPIOs supported 1411 by the TPS68470. While the 7 GPIOs can be configured as 1412 input or output as appropriate, the sensor related GPIOs 1413 are "output only" GPIOs. 1414 1415config GPIO_TQMX86 1416 tristate "TQ-Systems QTMX86 GPIO" 1417 depends on MFD_TQMX86 || COMPILE_TEST 1418 depends on HAS_IOPORT_MAP 1419 select GPIOLIB_IRQCHIP 1420 help 1421 This driver supports GPIO on the TQMX86 IO controller. 1422 1423config GPIO_TWL4030 1424 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1425 depends on TWL4030_CORE 1426 help 1427 Say yes here to access the GPIO signals of various multi-function 1428 power management chips from Texas Instruments. 1429 1430config GPIO_TWL6040 1431 tristate "TWL6040 GPO" 1432 depends on TWL6040_CORE 1433 help 1434 Say yes here to access the GPO signals of twl6040 1435 audio chip from Texas Instruments. 1436 1437config GPIO_UCB1400 1438 tristate "Philips UCB1400 GPIO" 1439 depends on UCB1400_CORE 1440 help 1441 This enables support for the Philips UCB1400 GPIO pins. 1442 The UCB1400 is an AC97 audio codec. 1443 1444config GPIO_WHISKEY_COVE 1445 tristate "GPIO support for Whiskey Cove PMIC" 1446 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1447 select GPIOLIB_IRQCHIP 1448 help 1449 Support for GPIO pins on Whiskey Cove PMIC. 1450 1451 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1452 inside. 1453 1454 This driver can also be built as a module. If so, the module will be 1455 called gpio-wcove. 1456 1457config GPIO_WM831X 1458 tristate "WM831x GPIOs" 1459 depends on MFD_WM831X 1460 help 1461 Say yes here to access the GPIO signals of WM831x power management 1462 chips from Wolfson Microelectronics. 1463 1464config GPIO_WM8350 1465 tristate "WM8350 GPIOs" 1466 depends on MFD_WM8350 1467 help 1468 Say yes here to access the GPIO signals of WM8350 power management 1469 chips from Wolfson Microelectronics. 1470 1471config GPIO_WM8994 1472 tristate "WM8994 GPIOs" 1473 depends on MFD_WM8994 1474 help 1475 Say yes here to access the GPIO signals of WM8994 audio hub 1476 CODECs from Wolfson Microelectronics. 1477 1478endmenu 1479 1480menu "PCI GPIO expanders" 1481 depends on PCI 1482 1483config GPIO_AMD8111 1484 tristate "AMD 8111 GPIO driver" 1485 depends on X86 || COMPILE_TEST 1486 depends on HAS_IOPORT_MAP 1487 help 1488 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1489 1490 Note that usually system firmware/ACPI handles GPIO pins on their 1491 own and users might easily break their systems with uncareful usage 1492 of this driver! 1493 1494 If unsure, say N 1495 1496config GPIO_BT8XX 1497 tristate "BT8XX GPIO abuser" 1498 depends on VIDEO_BT848=n 1499 help 1500 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1501 as a cheap PCI GPIO card. 1502 1503 This chip can be found on Miro, Hauppauge and STB TV-cards. 1504 1505 The card needs to be physically altered for using it as a 1506 GPIO card. For more information on how to build a GPIO card 1507 from a BT8xx TV card, see the documentation file at 1508 Documentation/driver-api/gpio/bt8xxgpio.rst 1509 1510 If unsure, say N. 1511 1512config GPIO_MERRIFIELD 1513 tristate "Intel Merrifield GPIO support" 1514 depends on X86_INTEL_MID 1515 select GPIOLIB_IRQCHIP 1516 help 1517 Say Y here to support Intel Merrifield GPIO. 1518 1519config GPIO_MLXBF 1520 tristate "Mellanox BlueField SoC GPIO" 1521 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1522 select GPIO_GENERIC 1523 help 1524 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1525 1526config GPIO_MLXBF2 1527 tristate "Mellanox BlueField 2 SoC GPIO" 1528 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1529 select GPIO_GENERIC 1530 help 1531 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1532 1533config GPIO_ML_IOH 1534 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1535 depends on X86 || COMPILE_TEST 1536 select GENERIC_IRQ_CHIP 1537 help 1538 ML7213 is companion chip for Intel Atom E6xx series. 1539 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1540 Hub) which is for IVI (In-Vehicle Infotainment) use. 1541 This driver can access the IOH's GPIO device. 1542 1543config GPIO_PCH 1544 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1545 depends on X86_32 || MIPS || COMPILE_TEST 1546 select GENERIC_IRQ_CHIP 1547 help 1548 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1549 which is an IOH (Input/Output Hub) for x86 embedded processor. 1550 This driver can access PCH GPIO device. 1551 1552 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1553 Output Hub), ML7223 and ML7831. 1554 ML7223 IOH is for MP (Media Phone) use. 1555 ML7831 IOH is for general purpose use. 1556 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1557 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1558 1559config GPIO_PCI_IDIO_16 1560 tristate "ACCES PCI-IDIO-16 GPIO support" 1561 select GPIOLIB_IRQCHIP 1562 help 1563 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1564 generated when any of the inputs change state (low to high or high to 1565 low). Input filter control is not supported by this driver, and the 1566 input filters are deactivated by this driver. 1567 1568config GPIO_PCIE_IDIO_24 1569 tristate "ACCES PCIe-IDIO-24 GPIO support" 1570 select GPIOLIB_IRQCHIP 1571 help 1572 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1573 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1574 when any of the inputs change state (low to high or high to low). 1575 Input filter control is not supported by this driver, and the input 1576 filters are deactivated by this driver. 1577 1578config GPIO_RDC321X 1579 tristate "RDC R-321x GPIO support" 1580 select MFD_CORE 1581 select MFD_RDC321X 1582 help 1583 Support for the RDC R321x SoC GPIOs over southbridge 1584 PCI configuration space. 1585 1586config GPIO_SODAVILLE 1587 bool "Intel Sodaville GPIO support" 1588 depends on X86 && OF 1589 select GPIO_GENERIC 1590 select GENERIC_IRQ_CHIP 1591 help 1592 Say Y here to support Intel Sodaville GPIO. 1593 1594endmenu 1595 1596menu "SPI GPIO expanders" 1597 depends on SPI_MASTER 1598 1599config GPIO_74X164 1600 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1601 depends on OF_GPIO 1602 help 1603 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1604 shift registers. This driver can be used to provide access 1605 to more GPIO outputs. 1606 1607config GPIO_MAX3191X 1608 tristate "Maxim MAX3191x industrial serializer" 1609 select CRC8 1610 help 1611 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1612 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1613 chip to make 8 digital 24V inputs available via SPI. Supports 1614 CRC checksums to guard against electromagnetic interference, 1615 as well as undervoltage and overtemperature detection. 1616 1617config GPIO_MAX7301 1618 tristate "Maxim MAX7301 GPIO expander" 1619 select GPIO_MAX730X 1620 help 1621 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1622 1623config GPIO_MC33880 1624 tristate "Freescale MC33880 high-side/low-side switch" 1625 help 1626 SPI driver for Freescale MC33880 high-side/low-side switch. 1627 This provides GPIO interface supporting inputs and outputs. 1628 1629config GPIO_PISOSR 1630 tristate "Generic parallel-in/serial-out shift register" 1631 help 1632 GPIO driver for SPI compatible parallel-in/serial-out shift 1633 registers. These are input only devices. 1634 1635config GPIO_XRA1403 1636 tristate "EXAR XRA1403 16-bit GPIO expander" 1637 select REGMAP_SPI 1638 help 1639 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1640 1641config GPIO_MOXTET 1642 tristate "Turris Mox Moxtet bus GPIO expander" 1643 depends on MOXTET 1644 help 1645 Say yes here if you are building for the Turris Mox router. 1646 This is the driver needed for configuring the GPIOs via the Moxtet 1647 bus. For example the Mox module with SFP cage needs this driver 1648 so that phylink can use corresponding GPIOs. 1649 1650endmenu 1651 1652menu "USB GPIO expanders" 1653 depends on USB 1654 1655config GPIO_VIPERBOARD 1656 tristate "Viperboard GPIO a & b support" 1657 depends on MFD_VIPERBOARD 1658 help 1659 Say yes here to access the GPIO signals of Nano River 1660 Technologies Viperboard. There are two GPIO chips on the 1661 board: gpioa and gpiob. 1662 See viperboard API specification and Nano 1663 River Tech's viperboard.h for detailed meaning 1664 of the module parameters. 1665 1666endmenu 1667 1668menu "Virtual GPIO drivers" 1669 1670config GPIO_AGGREGATOR 1671 tristate "GPIO Aggregator" 1672 help 1673 Say yes here to enable the GPIO Aggregator, which provides a way to 1674 aggregate existing GPIO lines into a new virtual GPIO chip. 1675 This can serve the following purposes: 1676 - Assign permissions for a collection of GPIO lines to a user, 1677 - Export a collection of GPIO lines to a virtual machine, 1678 - Provide a generic driver for a GPIO-operated device in an 1679 industrial control context, to be operated from userspace using 1680 the GPIO chardev interface. 1681 1682config GPIO_MOCKUP 1683 tristate "GPIO Testing Driver" 1684 select IRQ_SIM 1685 help 1686 This enables GPIO Testing driver, which provides a way to test GPIO 1687 subsystem through sysfs (or char device) and debugfs. 1688 User could use it through the script in 1689 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1690 it. 1691 1692config GPIO_VIRTIO 1693 tristate "VirtIO GPIO support" 1694 depends on VIRTIO 1695 select GPIOLIB_IRQCHIP 1696 help 1697 Say Y here to enable guest support for virtio-based GPIO controllers. 1698 1699 These virtual GPIOs can be routed to real GPIOs or attached to 1700 simulators on the host (like QEMU). 1701 1702config GPIO_SIM 1703 tristate "GPIO Simulator Module" 1704 select IRQ_SIM 1705 select CONFIGFS_FS 1706 help 1707 This enables the GPIO simulator - a configfs-based GPIO testing 1708 driver. 1709 1710endmenu 1711 1712endif 1713