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_EP93XX 251 def_bool y 252 depends on ARCH_EP93XX 253 select GPIO_GENERIC 254 select GPIOLIB_IRQCHIP 255 256config GPIO_EXAR 257 tristate "Support for GPIO pins on XR17V352/354/358" 258 depends on SERIAL_8250_EXAR 259 select REGMAP_MMIO 260 help 261 Selecting this option will enable handling of GPIO pins present 262 on Exar XR17V352/354/358 chips. 263 264config GPIO_GE_FPGA 265 bool "GE FPGA based GPIO" 266 depends on GE_FPGA 267 select GPIO_GENERIC 268 help 269 Support for common GPIO functionality provided on some GE Single Board 270 Computers. 271 272 This driver provides basic support (configure as input or output, read 273 and write pin state) for GPIO implemented in a number of GE single 274 board computers. 275 276config GPIO_FTGPIO010 277 bool "Faraday FTGPIO010 GPIO" 278 depends on OF_GPIO 279 select GPIO_GENERIC 280 select GPIOLIB_IRQCHIP 281 default (ARCH_GEMINI || ARCH_MOXART) 282 help 283 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 284 Cortina systems Gemini platforms, Moxa ART and others. 285 286config GPIO_GENERIC_PLATFORM 287 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 288 select GPIO_GENERIC 289 help 290 Say yes here to support basic platform_device memory-mapped GPIO controllers. 291 292config GPIO_GRGPIO 293 tristate "Aeroflex Gaisler GRGPIO support" 294 depends on OF_GPIO 295 select GPIO_GENERIC 296 select IRQ_DOMAIN 297 help 298 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 299 VHDL IP core library. 300 301config GPIO_HISI 302 tristate "HiSilicon GPIO controller driver" 303 depends on (ARM64 && ACPI) || COMPILE_TEST 304 select GPIO_GENERIC 305 select GPIOLIB_IRQCHIP 306 help 307 Say Y or M here to build support for the HiSilicon GPIO controller 308 driver GPIO block. 309 This GPIO controller supports double-edge interrupt and multi-core 310 concurrent access. 311 312config GPIO_HLWD 313 tristate "Nintendo Wii (Hollywood) GPIO" 314 depends on OF_GPIO 315 select GPIO_GENERIC 316 select GPIOLIB_IRQCHIP 317 help 318 Select this to support the GPIO controller of the Nintendo Wii. 319 320 If unsure, say N. 321 322config GPIO_ICH 323 tristate "Intel ICH GPIO" 324 depends on X86 325 depends on LPC_ICH 326 help 327 Say yes here to support the GPIO functionality of a number of Intel 328 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 329 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 330 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 331 332 If unsure, say N. 333 334config GPIO_IOP 335 tristate "Intel IOP GPIO" 336 depends on ARCH_IOP32X || COMPILE_TEST 337 select GPIO_GENERIC 338 help 339 Say yes here to support the GPIO functionality of a number of Intel 340 IOP32X or IOP33X series of chips. 341 342 If unsure, say N. 343 344config GPIO_IXP4XX 345 bool "Intel IXP4xx GPIO" 346 depends on ARM # For <asm/mach-types.h> 347 depends on ARCH_IXP4XX 348 select GPIO_GENERIC 349 select GPIOLIB_IRQCHIP 350 select IRQ_DOMAIN_HIERARCHY 351 help 352 Say yes here to support the GPIO functionality of a number of Intel 353 IXP4xx series of chips. 354 355 If unsure, say N. 356config GPIO_LOGICVC 357 tristate "Xylon LogiCVC GPIO support" 358 depends on MFD_SYSCON && OF 359 help 360 Say yes here to support GPIO functionality of the Xylon LogiCVC 361 programmable logic block. 362 363config GPIO_LOONGSON 364 bool "Loongson-2/3 GPIO support" 365 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 366 help 367 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 368 369config GPIO_LPC18XX 370 tristate "NXP LPC18XX/43XX GPIO support" 371 default y if ARCH_LPC18XX 372 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 373 select IRQ_DOMAIN_HIERARCHY 374 help 375 Select this option to enable GPIO driver for 376 NXP LPC18XX/43XX devices. 377 378config GPIO_LPC32XX 379 tristate "NXP LPC32XX GPIO support" 380 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 381 help 382 Select this option to enable GPIO driver for 383 NXP LPC32XX devices. 384 385config GPIO_MB86S7X 386 tristate "GPIO support for Fujitsu MB86S7x Platforms" 387 help 388 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 389 390config GPIO_MENZ127 391 tristate "MEN 16Z127 GPIO support" 392 depends on MCB 393 select GPIO_GENERIC 394 help 395 Say yes here to support the MEN 16Z127 GPIO Controller. 396 397config GPIO_MM_LANTIQ 398 bool "Lantiq Memory mapped GPIOs" 399 depends on LANTIQ && SOC_XWAY 400 help 401 This enables support for memory mapped GPIOs on the External Bus Unit 402 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 403 created by attaching a 16-bit latch to the bus. 404 405config GPIO_MPC5200 406 def_bool y 407 depends on PPC_MPC52xx 408 409config GPIO_MPC8XXX 410 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 411 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 412 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 413 COMPILE_TEST 414 select GPIO_GENERIC 415 select IRQ_DOMAIN 416 help 417 Say Y here if you're going to use hardware that connects to the 418 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 419 420config GPIO_MT7621 421 bool "Mediatek MT7621 GPIO Support" 422 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 423 depends on OF_GPIO 424 select GPIO_GENERIC 425 select GPIOLIB_IRQCHIP 426 help 427 Say yes here to support the Mediatek MT7621 SoC GPIO device. 428 429config GPIO_MVEBU 430 def_bool y 431 depends on PLAT_ORION || ARCH_MVEBU 432 depends on OF_GPIO 433 select GENERIC_IRQ_CHIP 434 select REGMAP_MMIO 435 436config GPIO_MXC 437 tristate "i.MX GPIO support" 438 depends on ARCH_MXC || COMPILE_TEST 439 select GPIO_GENERIC 440 select GENERIC_IRQ_CHIP 441 442config GPIO_MXS 443 bool "Freescale MXS GPIO support" if COMPILE_TEST 444 depends on ARCH_MXS || COMPILE_TEST 445 default y if ARCH_MXS 446 select GPIO_GENERIC 447 select GENERIC_IRQ_CHIP 448 449config GPIO_OCTEON 450 tristate "Cavium OCTEON GPIO" 451 depends on CAVIUM_OCTEON_SOC 452 default y 453 help 454 Say yes here to support the on-chip GPIO lines on the OCTEON 455 family of SOCs. 456 457config GPIO_OMAP 458 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 459 default y if ARCH_OMAP 460 depends on ARM 461 select GENERIC_IRQ_CHIP 462 select GPIOLIB_IRQCHIP 463 help 464 Say yes here to enable GPIO support for TI OMAP SoCs. 465 466config GPIO_PL061 467 tristate "PrimeCell PL061 GPIO support" 468 depends on ARM_AMBA 469 select IRQ_DOMAIN 470 select GPIOLIB_IRQCHIP 471 help 472 Say yes here to support the PrimeCell PL061 GPIO device. 473 474config GPIO_PMIC_EIC_SPRD 475 tristate "Spreadtrum PMIC EIC support" 476 depends on MFD_SC27XX_PMIC || COMPILE_TEST 477 depends on OF_GPIO 478 select GPIOLIB_IRQCHIP 479 help 480 Say yes here to support Spreadtrum PMIC EIC device. 481 482config GPIO_PXA 483 bool "PXA GPIO support" 484 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 485 help 486 Say yes here to support the PXA GPIO device. 487 488config GPIO_RCAR 489 tristate "Renesas R-Car and RZ/G GPIO support" 490 depends on ARCH_RENESAS || COMPILE_TEST 491 select GPIOLIB_IRQCHIP 492 help 493 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 494 495config GPIO_RDA 496 bool "RDA Micro GPIO controller support" 497 depends on ARCH_RDA || COMPILE_TEST 498 depends on OF_GPIO 499 select GPIO_GENERIC 500 select GPIOLIB_IRQCHIP 501 help 502 Say Y here to support RDA Micro GPIO controller. 503 504config GPIO_REALTEK_OTTO 505 tristate "Realtek Otto GPIO support" 506 depends on MACH_REALTEK_RTL 507 default MACH_REALTEK_RTL 508 select GPIO_GENERIC 509 select GPIOLIB_IRQCHIP 510 help 511 The GPIO controller on the Otto MIPS platform supports up to two 512 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 513 are grouped in four 8-bit wide ports. 514 515 When built as a module, the module will be called realtek_otto_gpio. 516 517config GPIO_REG 518 bool 519 help 520 A 32-bit single register GPIO fixed in/out implementation. This 521 can be used to represent any register as a set of GPIO signals. 522 523config GPIO_ROCKCHIP 524 tristate "Rockchip GPIO support" 525 depends on ARCH_ROCKCHIP || COMPILE_TEST 526 select GPIOLIB_IRQCHIP 527 default ARCH_ROCKCHIP 528 help 529 Say yes here to support GPIO on Rockchip SoCs. 530 531config GPIO_SAMA5D2_PIOBU 532 tristate "SAMA5D2 PIOBU GPIO support" 533 depends on MFD_SYSCON 534 depends on OF_GPIO 535 select GPIO_SYSCON 536 help 537 Say yes here to use the PIOBU pins as GPIOs. 538 539 PIOBU pins on the SAMA5D2 can be used as GPIOs. 540 The difference from regular GPIOs is that they 541 maintain their value during backup/self-refresh. 542 543config GPIO_SIFIVE 544 bool "SiFive GPIO support" 545 depends on OF_GPIO 546 select IRQ_DOMAIN_HIERARCHY 547 select GPIO_GENERIC 548 select GPIOLIB_IRQCHIP 549 select REGMAP_MMIO 550 help 551 Say yes here to support the GPIO device on SiFive SoCs. 552 553config GPIO_SIOX 554 tristate "SIOX GPIO support" 555 depends on SIOX 556 select GPIOLIB_IRQCHIP 557 help 558 Say yes here to support SIOX I/O devices. These are units connected 559 via a SIOX bus and have a number of fixed-direction I/O lines. 560 561config GPIO_SNPS_CREG 562 bool "Synopsys GPIO via CREG (Control REGisters) driver" 563 depends on ARC || COMPILE_TEST 564 depends on OF_GPIO 565 help 566 This driver supports GPIOs via CREG on various Synopsys SoCs. 567 This is a single-register MMIO GPIO driver for complex cases 568 where only several fields in register belong to GPIO lines and 569 each GPIO line owns a field with different length and on/off value. 570 571config GPIO_SPEAR_SPICS 572 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 573 depends on PLAT_SPEAR 574 select GENERIC_IRQ_CHIP 575 help 576 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 577 578config GPIO_SPRD 579 tristate "Spreadtrum GPIO support" 580 depends on ARCH_SPRD || COMPILE_TEST 581 depends on OF_GPIO 582 select GPIOLIB_IRQCHIP 583 help 584 Say yes here to support Spreadtrum GPIO device. 585 586config GPIO_STA2X11 587 bool "STA2x11/ConneXt GPIO support" 588 depends on MFD_STA2X11 589 select GENERIC_IRQ_CHIP 590 help 591 Say yes here to support the STA2x11/ConneXt GPIO device. 592 The GPIO module has 128 GPIO pins with alternate functions. 593 594config GPIO_STP_XWAY 595 bool "XWAY STP GPIOs" 596 depends on SOC_XWAY || COMPILE_TEST 597 depends on OF_GPIO 598 help 599 This enables support for the Serial To Parallel (STP) unit found on 600 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 601 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 602 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 603 phy status. 604 605config GPIO_SYSCON 606 tristate "GPIO based on SYSCON" 607 depends on MFD_SYSCON && OF 608 help 609 Say yes here to support GPIO functionality though SYSCON driver. 610 611config GPIO_TB10X 612 bool 613 select GPIO_GENERIC 614 select GENERIC_IRQ_CHIP 615 select OF_GPIO 616 617config GPIO_TEGRA 618 tristate "NVIDIA Tegra GPIO support" 619 default ARCH_TEGRA 620 depends on ARCH_TEGRA || COMPILE_TEST 621 depends on OF_GPIO 622 select GPIOLIB_IRQCHIP 623 select IRQ_DOMAIN_HIERARCHY 624 help 625 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 626 627config GPIO_TEGRA186 628 tristate "NVIDIA Tegra186 GPIO support" 629 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 630 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 631 depends on OF_GPIO 632 select GPIOLIB_IRQCHIP 633 select IRQ_DOMAIN_HIERARCHY 634 help 635 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 636 637config GPIO_TS4800 638 tristate "TS-4800 DIO blocks and compatibles" 639 depends on OF_GPIO 640 depends on SOC_IMX51 || COMPILE_TEST 641 select GPIO_GENERIC 642 help 643 This driver support TS-4800 FPGA GPIO controllers. 644 645config GPIO_THUNDERX 646 tristate "Cavium ThunderX/OCTEON-TX GPIO" 647 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 648 depends on PCI_MSI 649 select GPIOLIB_IRQCHIP 650 select IRQ_DOMAIN_HIERARCHY 651 select IRQ_FASTEOI_HIERARCHY_HANDLERS 652 help 653 Say yes here to support the on-chip GPIO lines on the ThunderX 654 and OCTEON-TX families of SoCs. 655 656config GPIO_UNIPHIER 657 tristate "UniPhier GPIO support" 658 depends on ARCH_UNIPHIER || COMPILE_TEST 659 depends on OF_GPIO 660 select IRQ_DOMAIN_HIERARCHY 661 help 662 Say yes here to support UniPhier GPIOs. 663 664config GPIO_VF610 665 def_bool y 666 depends on ARCH_MXC && SOC_VF610 667 select GPIOLIB_IRQCHIP 668 help 669 Say yes here to support Vybrid vf610 GPIOs. 670 671config GPIO_VISCONTI 672 tristate "Toshiba Visconti GPIO support" 673 depends on ARCH_VISCONTI || COMPILE_TEST 674 depends on OF_GPIO 675 select GPIOLIB_IRQCHIP 676 select GPIO_GENERIC 677 select IRQ_DOMAIN_HIERARCHY 678 help 679 Say yes here to support GPIO on Tohisba Visconti. 680 681config GPIO_VR41XX 682 tristate "NEC VR4100 series General-purpose I/O Unit support" 683 depends on CPU_VR41XX 684 help 685 Say yes here to support the NEC VR4100 series General-purpose I/O Unit. 686 687config GPIO_VX855 688 tristate "VIA VX855/VX875 GPIO" 689 depends on (X86 || COMPILE_TEST) && PCI 690 select MFD_CORE 691 select MFD_VX855 692 help 693 Support access to the VX855/VX875 GPIO lines through the GPIO library. 694 695 This driver provides common support for accessing the device. 696 Additional drivers must be enabled in order to use the 697 functionality of the device. 698 699config GPIO_WCD934X 700 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 701 depends on MFD_WCD934X && OF_GPIO 702 help 703 This driver is to support GPIO block found on the Qualcomm Technologies 704 Inc WCD9340/WCD9341 Audio Codec. 705 706config GPIO_XGENE 707 bool "APM X-Gene GPIO controller support" 708 depends on ARM64 && OF_GPIO 709 help 710 This driver is to support the GPIO block within the APM X-Gene SoC 711 platform's generic flash controller. The GPIO pins are muxed with 712 the generic flash controller's address and data pins. Say yes 713 here to enable the GFC GPIO functionality. 714 715config GPIO_XGENE_SB 716 tristate "APM X-Gene GPIO standby controller support" 717 depends on (ARCH_XGENE || COMPILE_TEST) 718 select GPIO_GENERIC 719 select GPIOLIB_IRQCHIP 720 select IRQ_DOMAIN_HIERARCHY 721 help 722 This driver supports the GPIO block within the APM X-Gene 723 Standby Domain. Say yes here to enable the GPIO functionality. 724 725config GPIO_XILINX 726 tristate "Xilinx GPIO support" 727 select GPIOLIB_IRQCHIP 728 depends on OF_GPIO 729 help 730 Say yes here to support the Xilinx FPGA GPIO device. 731 732config GPIO_XLP 733 tristate "Cavium ThunderX2 GPIO support" 734 depends on ARCH_THUNDER2 || COMPILE_TEST 735 select GPIOLIB_IRQCHIP 736 help 737 This driver provides support for GPIO interface on Cavium's ThunderX2 738 CN99XX SoCs (Originally from Netlogic XLP). 739 740 If unsure, say N. 741 742config GPIO_XTENSA 743 bool "Xtensa GPIO32 support" 744 depends on XTENSA 745 depends on HAVE_XTENSA_GPIO32 746 depends on !SMP 747 help 748 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 749 and EXPSTATE (output) ports. 750 751config GPIO_ZEVIO 752 bool "LSI ZEVIO SoC memory mapped GPIOs" 753 depends on ARM && OF_GPIO 754 help 755 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 756 757config GPIO_ZYNQ 758 tristate "Xilinx Zynq GPIO support" 759 depends on ARCH_ZYNQ || ARCH_ZYNQMP 760 select GPIOLIB_IRQCHIP 761 help 762 Say yes here to support Xilinx Zynq GPIO controller. 763 764config GPIO_ZYNQMP_MODEPIN 765 tristate "ZynqMP ps-mode pin GPIO configuration driver" 766 depends on ZYNQMP_FIRMWARE 767 default ZYNQMP_FIRMWARE 768 help 769 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 770 driver. 771 772 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 773 is 4-bits boot mode pins. It sets and gets the status of 774 the ps-mode pin. Every pin can be configured as input/output. 775 776config GPIO_LOONGSON1 777 tristate "Loongson1 GPIO support" 778 depends on MACH_LOONGSON32 779 select GPIO_GENERIC 780 help 781 Say Y or M here to support GPIO on Loongson1 SoCs. 782 783config GPIO_AMD_FCH 784 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 785 help 786 This option enables driver for GPIO on AMD's Fusion Controller Hub, 787 as found on G-series SOCs (e.g. GX-412TC). 788 789 Note: This driver doesn't register itself automatically, as it 790 needs to be provided with platform-specific configuration. 791 (See e.g. CONFIG_PCENGINES_APU2.) 792 793config GPIO_MSC313 794 bool "MStar MSC313 GPIO support" 795 depends on ARCH_MSTARV7 796 default ARCH_MSTARV7 797 select GPIOLIB_IRQCHIP 798 select IRQ_DOMAIN_HIERARCHY 799 help 800 Say Y here to support the main GPIO block on MStar/SigmaStar 801 ARMv7-based SoCs. 802 803config GPIO_IDT3243X 804 tristate "IDT 79RC3243X GPIO support" 805 depends on MIKROTIK_RB532 || COMPILE_TEST 806 select GPIO_GENERIC 807 select GPIOLIB_IRQCHIP 808 help 809 Select this option to enable GPIO driver for 810 IDT 79RC3243X-based devices like Mikrotik RB532. 811 812 To compile this driver as a module, choose M here: the module will 813 be called gpio-idt3243x. 814 815endmenu 816 817menu "Port-mapped I/O GPIO drivers" 818 depends on X86 # Unconditional I/O space access 819 820config GPIO_104_DIO_48E 821 tristate "ACCES 104-DIO-48E GPIO support" 822 depends on PC104 823 select ISA_BUS_API 824 select GPIOLIB_IRQCHIP 825 help 826 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 827 104-DIO-24E). The base port addresses for the devices may be 828 configured via the base module parameter. The interrupt line numbers 829 for the devices may be configured via the irq module parameter. 830 831config GPIO_104_IDIO_16 832 tristate "ACCES 104-IDIO-16 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-IDIO-16 family (104-IDIO-16, 838 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 839 base port addresses for the devices may be configured via the base 840 module parameter. The interrupt line numbers for the devices may be 841 configured via the irq module parameter. 842 843config GPIO_104_IDI_48 844 tristate "ACCES 104-IDI-48 GPIO support" 845 depends on PC104 846 select ISA_BUS_API 847 select GPIOLIB_IRQCHIP 848 help 849 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 850 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 851 the devices may be configured via the base module parameter. The 852 interrupt line numbers for the devices may be configured via the irq 853 module parameter. 854 855config GPIO_F7188X 856 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 857 help 858 This option enables support for GPIOs found on Fintek Super-I/O 859 chips F71869, F71869A, F71882FG, F71889F and F81866. 860 861 To compile this driver as a module, choose M here: the module will 862 be called f7188x-gpio. 863 864config GPIO_GPIO_MM 865 tristate "Diamond Systems GPIO-MM GPIO support" 866 depends on PC104 867 select ISA_BUS_API 868 help 869 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 870 871 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 872 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 873 support for these 48 channels of digital I/O. 874 875 The base port addresses for the devices may be configured via the base 876 array module parameter. 877 878config GPIO_IT87 879 tristate "IT87xx GPIO support" 880 help 881 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 882 883 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 884 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 885 well. 886 887 To compile this driver as a module, choose M here: the module will 888 be called gpio_it87. 889 890config GPIO_SCH 891 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 892 depends on (X86 || COMPILE_TEST) && ACPI 893 depends on LPC_SCH 894 select GPIOLIB_IRQCHIP 895 help 896 Say yes here to support GPIO interface on Intel Poulsbo SCH, 897 Intel Tunnel Creek processor, Intel Centerton processor or 898 Intel Quark X1000 SoC. 899 900 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 901 powered by the core power rail and are turned off during sleep 902 modes (S3 and higher). The remaining four GPIOs are powered by 903 the Intel SCH suspend power supply. These GPIOs remain 904 active during S3. The suspend-powered GPIOs can be used to wake the 905 system from the Suspend-to-RAM state. 906 907 The Intel Tunnel Creek processor has 5 GPIOs powered by the 908 core power rail and 9 from suspend power supply. 909 910 The Intel Centerton processor has a total of 30 GPIO pins. 911 Twenty-one are powered by the core power rail and 9 from the 912 suspend power supply. 913 914 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 915 power well and 6 from the suspend power well. 916 917config GPIO_SCH311X 918 tristate "SMSC SCH311x SuperI/O GPIO" 919 help 920 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 921 SCH3116 "Super I/O" chipsets. 922 923 To compile this driver as a module, choose M here: the module will 924 be called gpio-sch311x. 925 926config GPIO_TS5500 927 tristate "TS-5500 DIO blocks and compatibles" 928 depends on TS5500 || COMPILE_TEST 929 help 930 This driver supports Digital I/O exposed by pin blocks found on some 931 Technologic Systems platforms. It includes, but is not limited to, 3 932 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 933 LCD port. 934 935config GPIO_WINBOND 936 tristate "Winbond Super I/O GPIO support" 937 select ISA_BUS_API 938 help 939 This option enables support for GPIOs found on Winbond Super I/O 940 chips. 941 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 942 supported. 943 944 You will need to provide a module parameter "gpios", or a 945 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 946 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 947 948 To compile this driver as a module, choose M here: the module will 949 be called gpio-winbond. 950 951config GPIO_WS16C48 952 tristate "WinSystems WS16C48 GPIO support" 953 select ISA_BUS_API 954 select GPIOLIB_IRQCHIP 955 help 956 Enables GPIO support for the WinSystems WS16C48. The base port 957 addresses for the devices may be configured via the base module 958 parameter. The interrupt line numbers for the devices may be 959 configured via the irq module parameter. 960 961endmenu 962 963menu "I2C GPIO expanders" 964 depends on I2C 965 966config GPIO_ADP5588 967 tristate "ADP5588 I2C GPIO expander" 968 help 969 This option enables support for 18 GPIOs found 970 on Analog Devices ADP5588 GPIO Expanders. 971 972config GPIO_ADP5588_IRQ 973 bool "Interrupt controller support for ADP5588" 974 depends on GPIO_ADP5588=y 975 select GPIOLIB_IRQCHIP 976 help 977 Say yes here to enable the adp5588 to be used as an interrupt 978 controller. It requires the driver to be built in the kernel. 979 980config GPIO_ADNP 981 tristate "Avionic Design N-bit GPIO expander" 982 depends on OF_GPIO 983 select GPIOLIB_IRQCHIP 984 help 985 This option enables support for N GPIOs found on Avionic Design 986 I2C GPIO expanders. The register space will be extended by powers 987 of two, so the controller will need to accommodate for that. For 988 example: if a controller provides 48 pins, 6 registers will be 989 enough to represent all pins, but the driver will assume a 990 register layout for 64 pins (8 registers). 991 992config GPIO_GW_PLD 993 tristate "Gateworks PLD GPIO Expander" 994 depends on OF_GPIO 995 help 996 Say yes here to provide access to the Gateworks I2C PLD GPIO 997 Expander. This is used at least on the Cambria GW2358-4. 998 999config GPIO_MAX7300 1000 tristate "Maxim MAX7300 GPIO expander" 1001 select GPIO_MAX730X 1002 help 1003 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1004 1005config GPIO_MAX732X 1006 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1007 help 1008 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1009 Port Expanders. Each IO port on these chips has a fixed role of 1010 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1011 Input and Output (designed by 'P'). The combinations are listed 1012 below: 1013 1014 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1015 max7322 (4I4O), max7323 (4P4O) 1016 1017 16 bits: max7324 (8I8O), max7325 (8P8O), 1018 max7326 (4I12O), max7327 (4P12O) 1019 1020 Board setup code must specify the model to use, and the start 1021 number for these GPIOs. 1022 1023config GPIO_MAX732X_IRQ 1024 bool "Interrupt controller support for MAX732x" 1025 depends on GPIO_MAX732X=y 1026 select GPIOLIB_IRQCHIP 1027 help 1028 Say yes here to enable the max732x to be used as an interrupt 1029 controller. It requires the driver to be built in the kernel. 1030 1031config GPIO_PCA953X 1032 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1033 select REGMAP_I2C 1034 help 1035 Say yes here to provide access to several register-oriented 1036 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1037 models include: 1038 1039 4 bits: pca9536, pca9537 1040 1041 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1042 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1043 1044 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1045 tca6416 1046 1047 24 bits: tca6424 1048 1049 40 bits: pca9505, pca9698 1050 1051config GPIO_PCA953X_IRQ 1052 bool "Interrupt controller support for PCA953x" 1053 depends on GPIO_PCA953X 1054 select GPIOLIB_IRQCHIP 1055 help 1056 Say yes here to enable the pca953x to be used as an interrupt 1057 controller. 1058 1059config GPIO_PCA9570 1060 tristate "PCA9570 4-Bit I2C GPO expander" 1061 help 1062 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1063 1064 To compile this driver as a module, choose M here: the module will 1065 be called gpio-pca9570. 1066 1067config GPIO_PCF857X 1068 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1069 select GPIOLIB_IRQCHIP 1070 select IRQ_DOMAIN 1071 help 1072 Say yes here to provide access to most "quasi-bidirectional" I2C 1073 GPIO expanders used for additional digital outputs or inputs. 1074 Most of these parts are from NXP, though TI is a second source for 1075 some of them. Compatible models include: 1076 1077 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1078 pca9670, pca9672, pca9674, pca9674a, 1079 max7328, max7329 1080 1081 16 bits: pcf8575, pcf8575c, pca8575, 1082 pca9671, pca9673, pca9675 1083 1084 Your board setup code will need to declare the expanders in 1085 use, and assign numbers to the GPIOs they expose. Those GPIOs 1086 can then be used from drivers and other kernel code, just like 1087 other GPIOs, but only accessible from task contexts. 1088 1089 This driver provides an in-kernel interface to those GPIOs using 1090 platform-neutral GPIO calls. 1091 1092config GPIO_TPIC2810 1093 tristate "TPIC2810 8-Bit I2C GPO expander" 1094 help 1095 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1096 1097 To compile this driver as a module, choose M here: the module will 1098 be called gpio-tpic2810. 1099 1100config GPIO_TS4900 1101 tristate "Technologic Systems FPGA I2C GPIO" 1102 depends on SOC_IMX6 || COMPILE_TEST 1103 select REGMAP_I2C 1104 help 1105 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1106 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1107 1108endmenu 1109 1110menu "MFD GPIO expanders" 1111 1112config GPIO_ADP5520 1113 tristate "GPIO Support for ADP5520 PMIC" 1114 depends on PMIC_ADP5520 1115 help 1116 This option enables support for on-chip GPIO found 1117 on Analog Devices ADP5520 PMICs. 1118 1119config GPIO_ALTERA_A10SR 1120 tristate "Altera Arria10 System Resource GPIO" 1121 depends on MFD_ALTERA_A10SR 1122 help 1123 Driver for Arria10 Development Kit GPIO expansion which 1124 includes reads of pushbuttons and DIP switches as well 1125 as writes to LEDs. 1126 1127config GPIO_ARIZONA 1128 tristate "Wolfson Microelectronics Arizona class devices" 1129 depends on MFD_ARIZONA 1130 help 1131 Support for GPIOs on Wolfson Arizona class devices. 1132 1133config GPIO_BD70528 1134 tristate "ROHM BD70528 GPIO support" 1135 depends on MFD_ROHM_BD70528 1136 help 1137 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs 1138 available on the ROHM PMIC in total. The GPIOs can also 1139 generate interrupts. 1140 1141 This driver can also be built as a module. If so, the module 1142 will be called gpio-bd70528. 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_TPS65086 1360 tristate "TI TPS65086 GPO" 1361 depends on MFD_TPS65086 1362 help 1363 This driver supports the GPO on TI TPS65086x PMICs. 1364 1365config GPIO_TPS65218 1366 tristate "TPS65218 GPIO" 1367 depends on MFD_TPS65218 1368 help 1369 Select this option to enable GPIO driver for the TPS65218 1370 chip family. 1371 1372config GPIO_TPS6586X 1373 bool "TPS6586X GPIO" 1374 depends on MFD_TPS6586X 1375 help 1376 Select this option to enable GPIO driver for the TPS6586X 1377 chip family. 1378 1379config GPIO_TPS65910 1380 bool "TPS65910 GPIO" 1381 depends on MFD_TPS65910 1382 help 1383 Select this option to enable GPIO driver for the TPS65910 1384 chip family. 1385 1386config GPIO_TPS65912 1387 tristate "TI TPS65912 GPIO" 1388 depends on MFD_TPS65912 1389 help 1390 This driver supports TPS65912 GPIO chip. 1391 1392config GPIO_TPS68470 1393 bool "TPS68470 GPIO" 1394 depends on INTEL_SKL_INT3472 1395 help 1396 Select this option to enable GPIO driver for the TPS68470 1397 chip family. 1398 There are 7 GPIOs and few sensor-related GPIOs supported 1399 by the TPS68470. While the 7 GPIOs can be configured as 1400 input or output as appropriate, the sensor related GPIOs 1401 are "output only" GPIOs. 1402 1403 This driver config is bool, as the GPIO functionality 1404 of the TPS68470 must be available before dependent 1405 drivers are loaded. 1406 1407config GPIO_TQMX86 1408 tristate "TQ-Systems QTMX86 GPIO" 1409 depends on MFD_TQMX86 || COMPILE_TEST 1410 depends on HAS_IOPORT_MAP 1411 select GPIOLIB_IRQCHIP 1412 help 1413 This driver supports GPIO on the TQMX86 IO controller. 1414 1415config GPIO_TWL4030 1416 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1417 depends on TWL4030_CORE 1418 help 1419 Say yes here to access the GPIO signals of various multi-function 1420 power management chips from Texas Instruments. 1421 1422config GPIO_TWL6040 1423 tristate "TWL6040 GPO" 1424 depends on TWL6040_CORE 1425 help 1426 Say yes here to access the GPO signals of twl6040 1427 audio chip from Texas Instruments. 1428 1429config GPIO_UCB1400 1430 tristate "Philips UCB1400 GPIO" 1431 depends on UCB1400_CORE 1432 help 1433 This enables support for the Philips UCB1400 GPIO pins. 1434 The UCB1400 is an AC97 audio codec. 1435 1436config GPIO_WHISKEY_COVE 1437 tristate "GPIO support for Whiskey Cove PMIC" 1438 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1439 select GPIOLIB_IRQCHIP 1440 help 1441 Support for GPIO pins on Whiskey Cove PMIC. 1442 1443 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1444 inside. 1445 1446 This driver can also be built as a module. If so, the module will be 1447 called gpio-wcove. 1448 1449config GPIO_WM831X 1450 tristate "WM831x GPIOs" 1451 depends on MFD_WM831X 1452 help 1453 Say yes here to access the GPIO signals of WM831x power management 1454 chips from Wolfson Microelectronics. 1455 1456config GPIO_WM8350 1457 tristate "WM8350 GPIOs" 1458 depends on MFD_WM8350 1459 help 1460 Say yes here to access the GPIO signals of WM8350 power management 1461 chips from Wolfson Microelectronics. 1462 1463config GPIO_WM8994 1464 tristate "WM8994 GPIOs" 1465 depends on MFD_WM8994 1466 help 1467 Say yes here to access the GPIO signals of WM8994 audio hub 1468 CODECs from Wolfson Microelectronics. 1469 1470endmenu 1471 1472menu "PCI GPIO expanders" 1473 depends on PCI 1474 1475config GPIO_AMD8111 1476 tristate "AMD 8111 GPIO driver" 1477 depends on X86 || COMPILE_TEST 1478 depends on HAS_IOPORT_MAP 1479 help 1480 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1481 1482 Note that usually system firmware/ACPI handles GPIO pins on their 1483 own and users might easily break their systems with uncareful usage 1484 of this driver! 1485 1486 If unsure, say N 1487 1488config GPIO_BT8XX 1489 tristate "BT8XX GPIO abuser" 1490 depends on VIDEO_BT848=n 1491 help 1492 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1493 as a cheap PCI GPIO card. 1494 1495 This chip can be found on Miro, Hauppauge and STB TV-cards. 1496 1497 The card needs to be physically altered for using it as a 1498 GPIO card. For more information on how to build a GPIO card 1499 from a BT8xx TV card, see the documentation file at 1500 Documentation/driver-api/gpio/bt8xxgpio.rst 1501 1502 If unsure, say N. 1503 1504config GPIO_MERRIFIELD 1505 tristate "Intel Merrifield GPIO support" 1506 depends on X86_INTEL_MID 1507 select GPIOLIB_IRQCHIP 1508 help 1509 Say Y here to support Intel Merrifield GPIO. 1510 1511config GPIO_MLXBF 1512 tristate "Mellanox BlueField SoC GPIO" 1513 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1514 select GPIO_GENERIC 1515 help 1516 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1517 1518config GPIO_MLXBF2 1519 tristate "Mellanox BlueField 2 SoC GPIO" 1520 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1521 select GPIO_GENERIC 1522 help 1523 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1524 1525config GPIO_ML_IOH 1526 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1527 depends on X86 || COMPILE_TEST 1528 select GENERIC_IRQ_CHIP 1529 help 1530 ML7213 is companion chip for Intel Atom E6xx series. 1531 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1532 Hub) which is for IVI (In-Vehicle Infotainment) use. 1533 This driver can access the IOH's GPIO device. 1534 1535config GPIO_PCH 1536 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1537 depends on X86_32 || MIPS || COMPILE_TEST 1538 select GENERIC_IRQ_CHIP 1539 help 1540 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1541 which is an IOH (Input/Output Hub) for x86 embedded processor. 1542 This driver can access PCH GPIO device. 1543 1544 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1545 Output Hub), ML7223 and ML7831. 1546 ML7223 IOH is for MP (Media Phone) use. 1547 ML7831 IOH is for general purpose use. 1548 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1549 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1550 1551config GPIO_PCI_IDIO_16 1552 tristate "ACCES PCI-IDIO-16 GPIO support" 1553 select GPIOLIB_IRQCHIP 1554 help 1555 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1556 generated when any of the inputs change state (low to high or high to 1557 low). Input filter control is not supported by this driver, and the 1558 input filters are deactivated by this driver. 1559 1560config GPIO_PCIE_IDIO_24 1561 tristate "ACCES PCIe-IDIO-24 GPIO support" 1562 select GPIOLIB_IRQCHIP 1563 help 1564 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1565 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1566 when any of the inputs change state (low to high or high to low). 1567 Input filter control is not supported by this driver, and the input 1568 filters are deactivated by this driver. 1569 1570config GPIO_RDC321X 1571 tristate "RDC R-321x GPIO support" 1572 select MFD_CORE 1573 select MFD_RDC321X 1574 help 1575 Support for the RDC R321x SoC GPIOs over southbridge 1576 PCI configuration space. 1577 1578config GPIO_SODAVILLE 1579 bool "Intel Sodaville GPIO support" 1580 depends on X86 && OF 1581 select GPIO_GENERIC 1582 select GENERIC_IRQ_CHIP 1583 help 1584 Say Y here to support Intel Sodaville GPIO. 1585 1586endmenu 1587 1588menu "SPI GPIO expanders" 1589 depends on SPI_MASTER 1590 1591config GPIO_74X164 1592 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1593 depends on OF_GPIO 1594 help 1595 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1596 shift registers. This driver can be used to provide access 1597 to more GPIO outputs. 1598 1599config GPIO_MAX3191X 1600 tristate "Maxim MAX3191x industrial serializer" 1601 select CRC8 1602 help 1603 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1604 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1605 chip to make 8 digital 24V inputs available via SPI. Supports 1606 CRC checksums to guard against electromagnetic interference, 1607 as well as undervoltage and overtemperature detection. 1608 1609config GPIO_MAX7301 1610 tristate "Maxim MAX7301 GPIO expander" 1611 select GPIO_MAX730X 1612 help 1613 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1614 1615config GPIO_MC33880 1616 tristate "Freescale MC33880 high-side/low-side switch" 1617 help 1618 SPI driver for Freescale MC33880 high-side/low-side switch. 1619 This provides GPIO interface supporting inputs and outputs. 1620 1621config GPIO_PISOSR 1622 tristate "Generic parallel-in/serial-out shift register" 1623 help 1624 GPIO driver for SPI compatible parallel-in/serial-out shift 1625 registers. These are input only devices. 1626 1627config GPIO_XRA1403 1628 tristate "EXAR XRA1403 16-bit GPIO expander" 1629 select REGMAP_SPI 1630 help 1631 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1632 1633config GPIO_MOXTET 1634 tristate "Turris Mox Moxtet bus GPIO expander" 1635 depends on MOXTET 1636 help 1637 Say yes here if you are building for the Turris Mox router. 1638 This is the driver needed for configuring the GPIOs via the Moxtet 1639 bus. For example the Mox module with SFP cage needs this driver 1640 so that phylink can use corresponding GPIOs. 1641 1642endmenu 1643 1644menu "USB GPIO expanders" 1645 depends on USB 1646 1647config GPIO_VIPERBOARD 1648 tristate "Viperboard GPIO a & b support" 1649 depends on MFD_VIPERBOARD 1650 help 1651 Say yes here to access the GPIO signals of Nano River 1652 Technologies Viperboard. There are two GPIO chips on the 1653 board: gpioa and gpiob. 1654 See viperboard API specification and Nano 1655 River Tech's viperboard.h for detailed meaning 1656 of the module parameters. 1657 1658endmenu 1659 1660menu "Virtual GPIO drivers" 1661 1662config GPIO_AGGREGATOR 1663 tristate "GPIO Aggregator" 1664 help 1665 Say yes here to enable the GPIO Aggregator, which provides a way to 1666 aggregate existing GPIO lines into a new virtual GPIO chip. 1667 This can serve the following purposes: 1668 - Assign permissions for a collection of GPIO lines to a user, 1669 - Export a collection of GPIO lines to a virtual machine, 1670 - Provide a generic driver for a GPIO-operated device in an 1671 industrial control context, to be operated from userspace using 1672 the GPIO chardev interface. 1673 1674config GPIO_MOCKUP 1675 tristate "GPIO Testing Driver" 1676 select IRQ_SIM 1677 help 1678 This enables GPIO Testing driver, which provides a way to test GPIO 1679 subsystem through sysfs (or char device) and debugfs. 1680 User could use it through the script in 1681 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1682 it. 1683 1684config GPIO_VIRTIO 1685 tristate "VirtIO GPIO support" 1686 depends on VIRTIO 1687 select GPIOLIB_IRQCHIP 1688 help 1689 Say Y here to enable guest support for virtio-based GPIO controllers. 1690 1691 These virtual GPIOs can be routed to real GPIOs or attached to 1692 simulators on the host (like QEMU). 1693 1694config GPIO_SIM 1695 tristate "GPIO Simulator Module" 1696 select IRQ_SIM 1697 select CONFIGFS_FS 1698 help 1699 This enables the GPIO simulator - a configfs-based GPIO testing 1700 driver. 1701 1702endmenu 1703 1704endif 1705