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 GENERIC_IRQ_CHIP 527 select GPIOLIB_IRQCHIP 528 default ARCH_ROCKCHIP 529 help 530 Say yes here to support GPIO on Rockchip SoCs. 531 532config GPIO_SAMA5D2_PIOBU 533 tristate "SAMA5D2 PIOBU GPIO support" 534 depends on MFD_SYSCON 535 depends on OF_GPIO 536 select GPIO_SYSCON 537 help 538 Say yes here to use the PIOBU pins as GPIOs. 539 540 PIOBU pins on the SAMA5D2 can be used as GPIOs. 541 The difference from regular GPIOs is that they 542 maintain their value during backup/self-refresh. 543 544config GPIO_SIFIVE 545 bool "SiFive GPIO support" 546 depends on OF_GPIO 547 select IRQ_DOMAIN_HIERARCHY 548 select GPIO_GENERIC 549 select GPIOLIB_IRQCHIP 550 select REGMAP_MMIO 551 help 552 Say yes here to support the GPIO device on SiFive SoCs. 553 554config GPIO_SIOX 555 tristate "SIOX GPIO support" 556 depends on SIOX 557 select GPIOLIB_IRQCHIP 558 help 559 Say yes here to support SIOX I/O devices. These are units connected 560 via a SIOX bus and have a number of fixed-direction I/O lines. 561 562config GPIO_SNPS_CREG 563 bool "Synopsys GPIO via CREG (Control REGisters) driver" 564 depends on ARC || COMPILE_TEST 565 depends on OF_GPIO 566 help 567 This driver supports GPIOs via CREG on various Synopsys SoCs. 568 This is a single-register MMIO GPIO driver for complex cases 569 where only several fields in register belong to GPIO lines and 570 each GPIO line owns a field with different length and on/off value. 571 572config GPIO_SPEAR_SPICS 573 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 574 depends on PLAT_SPEAR 575 select GENERIC_IRQ_CHIP 576 help 577 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 578 579config GPIO_SPRD 580 tristate "Spreadtrum GPIO support" 581 depends on ARCH_SPRD || COMPILE_TEST 582 depends on OF_GPIO 583 select GPIOLIB_IRQCHIP 584 help 585 Say yes here to support Spreadtrum GPIO device. 586 587config GPIO_STA2X11 588 bool "STA2x11/ConneXt GPIO support" 589 depends on MFD_STA2X11 590 select GENERIC_IRQ_CHIP 591 help 592 Say yes here to support the STA2x11/ConneXt GPIO device. 593 The GPIO module has 128 GPIO pins with alternate functions. 594 595config GPIO_STP_XWAY 596 bool "XWAY STP GPIOs" 597 depends on SOC_XWAY || COMPILE_TEST 598 depends on OF_GPIO 599 help 600 This enables support for the Serial To Parallel (STP) unit found on 601 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 602 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 603 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 604 phy status. 605 606config GPIO_SYSCON 607 tristate "GPIO based on SYSCON" 608 depends on MFD_SYSCON && OF 609 help 610 Say yes here to support GPIO functionality though SYSCON driver. 611 612config GPIO_TB10X 613 bool 614 select GPIO_GENERIC 615 select GENERIC_IRQ_CHIP 616 select OF_GPIO 617 618config GPIO_TEGRA 619 tristate "NVIDIA Tegra GPIO support" 620 default ARCH_TEGRA 621 depends on ARCH_TEGRA || COMPILE_TEST 622 depends on OF_GPIO 623 select GPIOLIB_IRQCHIP 624 select IRQ_DOMAIN_HIERARCHY 625 help 626 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 627 628config GPIO_TEGRA186 629 tristate "NVIDIA Tegra186 GPIO support" 630 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 631 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || 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 Tegra186 SoCs. 637 638config GPIO_TS4800 639 tristate "TS-4800 DIO blocks and compatibles" 640 depends on OF_GPIO 641 depends on SOC_IMX51 || COMPILE_TEST 642 select GPIO_GENERIC 643 help 644 This driver support TS-4800 FPGA GPIO controllers. 645 646config GPIO_THUNDERX 647 tristate "Cavium ThunderX/OCTEON-TX GPIO" 648 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 649 depends on PCI_MSI 650 select GPIOLIB_IRQCHIP 651 select IRQ_DOMAIN_HIERARCHY 652 select IRQ_FASTEOI_HIERARCHY_HANDLERS 653 help 654 Say yes here to support the on-chip GPIO lines on the ThunderX 655 and OCTEON-TX families of SoCs. 656 657config GPIO_UNIPHIER 658 tristate "UniPhier GPIO support" 659 depends on ARCH_UNIPHIER || COMPILE_TEST 660 depends on OF_GPIO 661 select IRQ_DOMAIN_HIERARCHY 662 help 663 Say yes here to support UniPhier GPIOs. 664 665config GPIO_VF610 666 def_bool y 667 depends on ARCH_MXC && SOC_VF610 668 select GPIOLIB_IRQCHIP 669 help 670 Say yes here to support Vybrid vf610 GPIOs. 671 672config GPIO_VISCONTI 673 tristate "Toshiba Visconti GPIO support" 674 depends on ARCH_VISCONTI || COMPILE_TEST 675 depends on OF_GPIO 676 select GPIOLIB_IRQCHIP 677 select GPIO_GENERIC 678 select IRQ_DOMAIN_HIERARCHY 679 help 680 Say yes here to support GPIO on Tohisba Visconti. 681 682config GPIO_VR41XX 683 tristate "NEC VR4100 series General-purpose I/O Unit support" 684 depends on CPU_VR41XX 685 help 686 Say yes here to support the NEC VR4100 series General-purpose I/O Unit. 687 688config GPIO_VX855 689 tristate "VIA VX855/VX875 GPIO" 690 depends on (X86 || COMPILE_TEST) && PCI 691 select MFD_CORE 692 select MFD_VX855 693 help 694 Support access to the VX855/VX875 GPIO lines through the GPIO library. 695 696 This driver provides common support for accessing the device. 697 Additional drivers must be enabled in order to use the 698 functionality of the device. 699 700config GPIO_WCD934X 701 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 702 depends on MFD_WCD934X && OF_GPIO 703 help 704 This driver is to support GPIO block found on the Qualcomm Technologies 705 Inc WCD9340/WCD9341 Audio Codec. 706 707config GPIO_XGENE 708 bool "APM X-Gene GPIO controller support" 709 depends on ARM64 && OF_GPIO 710 help 711 This driver is to support the GPIO block within the APM X-Gene SoC 712 platform's generic flash controller. The GPIO pins are muxed with 713 the generic flash controller's address and data pins. Say yes 714 here to enable the GFC GPIO functionality. 715 716config GPIO_XGENE_SB 717 tristate "APM X-Gene GPIO standby controller support" 718 depends on (ARCH_XGENE || COMPILE_TEST) 719 select GPIO_GENERIC 720 select GPIOLIB_IRQCHIP 721 select IRQ_DOMAIN_HIERARCHY 722 help 723 This driver supports the GPIO block within the APM X-Gene 724 Standby Domain. Say yes here to enable the GPIO functionality. 725 726config GPIO_XILINX 727 tristate "Xilinx GPIO support" 728 select GPIOLIB_IRQCHIP 729 depends on OF_GPIO 730 help 731 Say yes here to support the Xilinx FPGA GPIO device. 732 733config GPIO_XLP 734 tristate "Netlogic XLP GPIO support" 735 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 736 select GPIOLIB_IRQCHIP 737 help 738 This driver provides support for GPIO interface on Netlogic XLP MIPS64 739 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 740 XLP9XX and XLP5XX. The same GPIO controller block is also present in 741 Cavium's ThunderX2 CN99XX SoCs. 742 743 If unsure, say N. 744 745config GPIO_XTENSA 746 bool "Xtensa GPIO32 support" 747 depends on XTENSA 748 depends on HAVE_XTENSA_GPIO32 749 depends on !SMP 750 help 751 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 752 and EXPSTATE (output) ports. 753 754config GPIO_ZEVIO 755 bool "LSI ZEVIO SoC memory mapped GPIOs" 756 depends on ARM && OF_GPIO 757 help 758 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 759 760config GPIO_ZYNQ 761 tristate "Xilinx Zynq GPIO support" 762 depends on ARCH_ZYNQ || ARCH_ZYNQMP 763 select GPIOLIB_IRQCHIP 764 help 765 Say yes here to support Xilinx Zynq GPIO controller. 766 767config GPIO_ZYNQMP_MODEPIN 768 tristate "ZynqMP ps-mode pin GPIO configuration driver" 769 depends on ZYNQMP_FIRMWARE 770 default ZYNQMP_FIRMWARE 771 help 772 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 773 driver. 774 775 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 776 is 4-bits boot mode pins. It sets and gets the status of 777 the ps-mode pin. Every pin can be configured as input/output. 778 779config GPIO_LOONGSON1 780 tristate "Loongson1 GPIO support" 781 depends on MACH_LOONGSON32 782 select GPIO_GENERIC 783 help 784 Say Y or M here to support GPIO on Loongson1 SoCs. 785 786config GPIO_AMD_FCH 787 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 788 help 789 This option enables driver for GPIO on AMD's Fusion Controller Hub, 790 as found on G-series SOCs (e.g. GX-412TC). 791 792 Note: This driver doesn't register itself automatically, as it 793 needs to be provided with platform-specific configuration. 794 (See e.g. CONFIG_PCENGINES_APU2.) 795 796config GPIO_MSC313 797 bool "MStar MSC313 GPIO support" 798 depends on ARCH_MSTARV7 799 default ARCH_MSTARV7 800 select GPIOLIB_IRQCHIP 801 select IRQ_DOMAIN_HIERARCHY 802 help 803 Say Y here to support the main GPIO block on MStar/SigmaStar 804 ARMv7-based SoCs. 805 806config GPIO_IDT3243X 807 tristate "IDT 79RC3243X GPIO support" 808 depends on MIKROTIK_RB532 || COMPILE_TEST 809 select GPIO_GENERIC 810 select GPIOLIB_IRQCHIP 811 help 812 Select this option to enable GPIO driver for 813 IDT 79RC3243X-based devices like Mikrotik RB532. 814 815 To compile this driver as a module, choose M here: the module will 816 be called gpio-idt3243x. 817 818endmenu 819 820menu "Port-mapped I/O GPIO drivers" 821 depends on X86 # Unconditional I/O space access 822 823config GPIO_104_DIO_48E 824 tristate "ACCES 104-DIO-48E GPIO support" 825 depends on PC104 826 select ISA_BUS_API 827 select GPIOLIB_IRQCHIP 828 help 829 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 830 104-DIO-24E). The base port addresses for the devices may be 831 configured via the base module parameter. The interrupt line numbers 832 for the devices may be configured via the irq module parameter. 833 834config GPIO_104_IDIO_16 835 tristate "ACCES 104-IDIO-16 GPIO support" 836 depends on PC104 837 select ISA_BUS_API 838 select GPIOLIB_IRQCHIP 839 help 840 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 841 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 842 base port addresses for the devices may be configured via the base 843 module parameter. The interrupt line numbers for the devices may be 844 configured via the irq module parameter. 845 846config GPIO_104_IDI_48 847 tristate "ACCES 104-IDI-48 GPIO support" 848 depends on PC104 849 select ISA_BUS_API 850 select GPIOLIB_IRQCHIP 851 help 852 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 853 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 854 the devices may be configured via the base module parameter. The 855 interrupt line numbers for the devices may be configured via the irq 856 module parameter. 857 858config GPIO_F7188X 859 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 860 help 861 This option enables support for GPIOs found on Fintek Super-I/O 862 chips F71869, F71869A, F71882FG, F71889F and F81866. 863 864 To compile this driver as a module, choose M here: the module will 865 be called f7188x-gpio. 866 867config GPIO_GPIO_MM 868 tristate "Diamond Systems GPIO-MM GPIO support" 869 depends on PC104 870 select ISA_BUS_API 871 help 872 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 873 874 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 875 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 876 support for these 48 channels of digital I/O. 877 878 The base port addresses for the devices may be configured via the base 879 array module parameter. 880 881config GPIO_IT87 882 tristate "IT87xx GPIO support" 883 help 884 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 885 886 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 887 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 888 well. 889 890 To compile this driver as a module, choose M here: the module will 891 be called gpio_it87. 892 893config GPIO_SCH 894 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 895 depends on (X86 || COMPILE_TEST) && ACPI 896 depends on LPC_SCH 897 select GPIOLIB_IRQCHIP 898 help 899 Say yes here to support GPIO interface on Intel Poulsbo SCH, 900 Intel Tunnel Creek processor, Intel Centerton processor or 901 Intel Quark X1000 SoC. 902 903 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 904 powered by the core power rail and are turned off during sleep 905 modes (S3 and higher). The remaining four GPIOs are powered by 906 the Intel SCH suspend power supply. These GPIOs remain 907 active during S3. The suspend-powered GPIOs can be used to wake the 908 system from the Suspend-to-RAM state. 909 910 The Intel Tunnel Creek processor has 5 GPIOs powered by the 911 core power rail and 9 from suspend power supply. 912 913 The Intel Centerton processor has a total of 30 GPIO pins. 914 Twenty-one are powered by the core power rail and 9 from the 915 suspend power supply. 916 917 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 918 power well and 6 from the suspend power well. 919 920config GPIO_SCH311X 921 tristate "SMSC SCH311x SuperI/O GPIO" 922 help 923 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 924 SCH3116 "Super I/O" chipsets. 925 926 To compile this driver as a module, choose M here: the module will 927 be called gpio-sch311x. 928 929config GPIO_TS5500 930 tristate "TS-5500 DIO blocks and compatibles" 931 depends on TS5500 || COMPILE_TEST 932 help 933 This driver supports Digital I/O exposed by pin blocks found on some 934 Technologic Systems platforms. It includes, but is not limited to, 3 935 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 936 LCD port. 937 938config GPIO_WINBOND 939 tristate "Winbond Super I/O GPIO support" 940 select ISA_BUS_API 941 help 942 This option enables support for GPIOs found on Winbond Super I/O 943 chips. 944 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 945 supported. 946 947 You will need to provide a module parameter "gpios", or a 948 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 949 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 950 951 To compile this driver as a module, choose M here: the module will 952 be called gpio-winbond. 953 954config GPIO_WS16C48 955 tristate "WinSystems WS16C48 GPIO support" 956 select ISA_BUS_API 957 select GPIOLIB_IRQCHIP 958 help 959 Enables GPIO support for the WinSystems WS16C48. The base port 960 addresses for the devices may be configured via the base module 961 parameter. The interrupt line numbers for the devices may be 962 configured via the irq module parameter. 963 964endmenu 965 966menu "I2C GPIO expanders" 967 depends on I2C 968 969config GPIO_ADP5588 970 tristate "ADP5588 I2C GPIO expander" 971 help 972 This option enables support for 18 GPIOs found 973 on Analog Devices ADP5588 GPIO Expanders. 974 975config GPIO_ADP5588_IRQ 976 bool "Interrupt controller support for ADP5588" 977 depends on GPIO_ADP5588=y 978 select GPIOLIB_IRQCHIP 979 help 980 Say yes here to enable the adp5588 to be used as an interrupt 981 controller. It requires the driver to be built in the kernel. 982 983config GPIO_ADNP 984 tristate "Avionic Design N-bit GPIO expander" 985 depends on OF_GPIO 986 select GPIOLIB_IRQCHIP 987 help 988 This option enables support for N GPIOs found on Avionic Design 989 I2C GPIO expanders. The register space will be extended by powers 990 of two, so the controller will need to accommodate for that. For 991 example: if a controller provides 48 pins, 6 registers will be 992 enough to represent all pins, but the driver will assume a 993 register layout for 64 pins (8 registers). 994 995config GPIO_GW_PLD 996 tristate "Gateworks PLD GPIO Expander" 997 depends on OF_GPIO 998 help 999 Say yes here to provide access to the Gateworks I2C PLD GPIO 1000 Expander. This is used at least on the Cambria GW2358-4. 1001 1002config GPIO_MAX7300 1003 tristate "Maxim MAX7300 GPIO expander" 1004 select GPIO_MAX730X 1005 help 1006 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1007 1008config GPIO_MAX732X 1009 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1010 help 1011 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1012 Port Expanders. Each IO port on these chips has a fixed role of 1013 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1014 Input and Output (designed by 'P'). The combinations are listed 1015 below: 1016 1017 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1018 max7322 (4I4O), max7323 (4P4O) 1019 1020 16 bits: max7324 (8I8O), max7325 (8P8O), 1021 max7326 (4I12O), max7327 (4P12O) 1022 1023 Board setup code must specify the model to use, and the start 1024 number for these GPIOs. 1025 1026config GPIO_MAX732X_IRQ 1027 bool "Interrupt controller support for MAX732x" 1028 depends on GPIO_MAX732X=y 1029 select GPIOLIB_IRQCHIP 1030 help 1031 Say yes here to enable the max732x to be used as an interrupt 1032 controller. It requires the driver to be built in the kernel. 1033 1034config GPIO_PCA953X 1035 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1036 select REGMAP_I2C 1037 help 1038 Say yes here to provide access to several register-oriented 1039 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1040 models include: 1041 1042 4 bits: pca9536, pca9537 1043 1044 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1045 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1046 1047 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1048 tca6416 1049 1050 24 bits: tca6424 1051 1052 40 bits: pca9505, pca9698 1053 1054config GPIO_PCA953X_IRQ 1055 bool "Interrupt controller support for PCA953x" 1056 depends on GPIO_PCA953X 1057 select GPIOLIB_IRQCHIP 1058 help 1059 Say yes here to enable the pca953x to be used as an interrupt 1060 controller. 1061 1062config GPIO_PCA9570 1063 tristate "PCA9570 4-Bit I2C GPO expander" 1064 help 1065 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1066 1067 To compile this driver as a module, choose M here: the module will 1068 be called gpio-pca9570. 1069 1070config GPIO_PCF857X 1071 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1072 select GPIOLIB_IRQCHIP 1073 select IRQ_DOMAIN 1074 help 1075 Say yes here to provide access to most "quasi-bidirectional" I2C 1076 GPIO expanders used for additional digital outputs or inputs. 1077 Most of these parts are from NXP, though TI is a second source for 1078 some of them. Compatible models include: 1079 1080 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1081 pca9670, pca9672, pca9674, pca9674a, 1082 max7328, max7329 1083 1084 16 bits: pcf8575, pcf8575c, pca8575, 1085 pca9671, pca9673, pca9675 1086 1087 Your board setup code will need to declare the expanders in 1088 use, and assign numbers to the GPIOs they expose. Those GPIOs 1089 can then be used from drivers and other kernel code, just like 1090 other GPIOs, but only accessible from task contexts. 1091 1092 This driver provides an in-kernel interface to those GPIOs using 1093 platform-neutral GPIO calls. 1094 1095config GPIO_TPIC2810 1096 tristate "TPIC2810 8-Bit I2C GPO expander" 1097 help 1098 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1099 1100 To compile this driver as a module, choose M here: the module will 1101 be called gpio-tpic2810. 1102 1103config GPIO_TS4900 1104 tristate "Technologic Systems FPGA I2C GPIO" 1105 depends on SOC_IMX6 || COMPILE_TEST 1106 select REGMAP_I2C 1107 help 1108 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1109 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1110 1111endmenu 1112 1113menu "MFD GPIO expanders" 1114 1115config GPIO_ADP5520 1116 tristate "GPIO Support for ADP5520 PMIC" 1117 depends on PMIC_ADP5520 1118 help 1119 This option enables support for on-chip GPIO found 1120 on Analog Devices ADP5520 PMICs. 1121 1122config GPIO_ALTERA_A10SR 1123 tristate "Altera Arria10 System Resource GPIO" 1124 depends on MFD_ALTERA_A10SR 1125 help 1126 Driver for Arria10 Development Kit GPIO expansion which 1127 includes reads of pushbuttons and DIP switches as well 1128 as writes to LEDs. 1129 1130config GPIO_ARIZONA 1131 tristate "Wolfson Microelectronics Arizona class devices" 1132 depends on MFD_ARIZONA 1133 help 1134 Support for GPIOs on Wolfson Arizona class devices. 1135 1136config GPIO_BD70528 1137 tristate "ROHM BD70528 GPIO support" 1138 depends on MFD_ROHM_BD70528 1139 help 1140 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs 1141 available on the ROHM PMIC in total. The GPIOs can also 1142 generate interrupts. 1143 1144 This driver can also be built as a module. If so, the module 1145 will be called gpio-bd70528. 1146 1147config GPIO_BD71815 1148 tristate "ROHM BD71815 PMIC GPIO support" 1149 depends on MFD_ROHM_BD71828 1150 help 1151 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1152 available on the ROHM PMIC. 1153 1154 This driver can also be built as a module. If so, the module 1155 will be called gpio-bd71815. 1156 1157config GPIO_BD71828 1158 tristate "ROHM BD71828 GPIO support" 1159 depends on MFD_ROHM_BD71828 1160 help 1161 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1162 available on the ROHM PMIC in total. The GPIOs are limited to 1163 outputs only and pins must be configured to GPIO outputs by 1164 OTP. Enable this only if you want to use these pins as outputs. 1165 1166 This driver can also be built as a module. If so, the module 1167 will be called gpio-bd71828. 1168 1169config GPIO_BD9571MWV 1170 tristate "ROHM BD9571 GPIO support" 1171 depends on MFD_BD9571MWV 1172 help 1173 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1174 available on the ROHM PMIC in total, both of which can also 1175 generate interrupts. 1176 1177 This driver can also be built as a module. If so, the module 1178 will be called gpio-bd9571mwv. 1179 1180config GPIO_CRYSTAL_COVE 1181 tristate "GPIO support for Crystal Cove PMIC" 1182 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1183 select GPIOLIB_IRQCHIP 1184 help 1185 Support for GPIO pins on Crystal Cove PMIC. 1186 1187 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1188 inside. 1189 1190 This driver can also be built as a module. If so, the module will be 1191 called gpio-crystalcove. 1192 1193config GPIO_CS5535 1194 tristate "AMD CS5535/CS5536 GPIO support" 1195 depends on X86 || MIPS || COMPILE_TEST 1196 depends on MFD_CS5535 1197 help 1198 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1199 can be used for quite a number of things. The CS5535/6 is found on 1200 AMD Geode and Lemote Yeeloong devices. 1201 1202 If unsure, say N. 1203 1204config GPIO_DA9052 1205 tristate "Dialog DA9052 GPIO" 1206 depends on PMIC_DA9052 1207 help 1208 Say yes here to enable the GPIO driver for the DA9052 chip. 1209 1210config GPIO_DA9055 1211 tristate "Dialog Semiconductor DA9055 GPIO" 1212 depends on MFD_DA9055 1213 help 1214 Say yes here to enable the GPIO driver for the DA9055 chip. 1215 1216 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1217 be controlled by this driver. 1218 1219 If driver is built as a module it will be called gpio-da9055. 1220 1221config GPIO_DLN2 1222 tristate "Diolan DLN2 GPIO support" 1223 depends on MFD_DLN2 1224 select GPIOLIB_IRQCHIP 1225 1226 help 1227 Select this option to enable GPIO driver for the Diolan DLN2 1228 board. 1229 1230 This driver can also be built as a module. If so, the module 1231 will be called gpio-dln2. 1232 1233config HTC_EGPIO 1234 bool "HTC EGPIO support" 1235 depends on ARM 1236 help 1237 This driver supports the CPLD egpio chip present on 1238 several HTC phones. It provides basic support for input 1239 pins, output pins, and IRQs. 1240 1241config GPIO_JANZ_TTL 1242 tristate "Janz VMOD-TTL Digital IO Module" 1243 depends on MFD_JANZ_CMODIO 1244 help 1245 This enables support for the Janz VMOD-TTL Digital IO module. 1246 This driver provides support for driving the pins in output 1247 mode only. Input mode is not supported. 1248 1249config GPIO_KEMPLD 1250 tristate "Kontron ETX / COMexpress GPIO" 1251 depends on MFD_KEMPLD 1252 help 1253 This enables support for the PLD GPIO interface on some Kontron ETX 1254 and COMexpress (ETXexpress) modules. 1255 1256 This driver can also be built as a module. If so, the module will be 1257 called gpio-kempld. 1258 1259config GPIO_LP3943 1260 tristate "TI/National Semiconductor LP3943 GPIO expander" 1261 depends on MFD_LP3943 1262 help 1263 GPIO driver for LP3943 MFD. 1264 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1265 Open drain outputs are required for this usage. 1266 1267config GPIO_LP873X 1268 tristate "TI LP873X GPO" 1269 depends on MFD_TI_LP873X 1270 help 1271 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1272 on LP873X PMICs. 1273 1274 This driver can also be built as a module. If so, the module will be 1275 called gpio-lp873x. 1276 1277config GPIO_LP87565 1278 tristate "TI LP87565 GPIO" 1279 depends on MFD_TI_LP87565 1280 help 1281 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1282 on LP87565 PMICs. 1283 1284 This driver can also be built as a module. If so, the module will be 1285 called gpio-lp87565. 1286 1287config GPIO_MADERA 1288 tristate "Cirrus Logic Madera class codecs" 1289 depends on PINCTRL_MADERA 1290 help 1291 Support for GPIOs on Cirrus Logic Madera class codecs. 1292 1293config GPIO_MAX77620 1294 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1295 depends on MFD_MAX77620 1296 select GPIOLIB_IRQCHIP 1297 help 1298 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1299 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1300 driver also provides interrupt support for each of the GPIOs. 1301 Say yes here to enable the max77620 to be used as GPIO controller. 1302 1303config GPIO_MAX77650 1304 tristate "Maxim MAX77650/77651 GPIO support" 1305 depends on MFD_MAX77650 1306 help 1307 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1308 These chips have a single pin that can be configured as GPIO. 1309 1310config GPIO_PALMAS 1311 bool "TI PALMAS series PMICs GPIO" 1312 depends on MFD_PALMAS 1313 help 1314 Select this option to enable GPIO driver for the TI PALMAS 1315 series chip family. 1316 1317config GPIO_RC5T583 1318 bool "RICOH RC5T583 GPIO" 1319 depends on MFD_RC5T583 1320 help 1321 Select this option to enable GPIO driver for the Ricoh RC5T583 1322 chip family. 1323 This driver provides the support for driving/reading the GPIO pins 1324 of RC5T583 device through standard GPIO library. 1325 1326config GPIO_SL28CPLD 1327 tristate "Kontron sl28cpld GPIO support" 1328 depends on MFD_SL28CPLD || COMPILE_TEST 1329 select GPIO_REGMAP 1330 select GPIOLIB_IRQCHIP 1331 select REGMAP_IRQ 1332 help 1333 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1334 1335 This driver can also be built as a module. If so, the module will be 1336 called gpio-sl28cpld. 1337 1338config GPIO_STMPE 1339 bool "STMPE GPIOs" 1340 depends on MFD_STMPE 1341 depends on OF_GPIO 1342 select GPIOLIB_IRQCHIP 1343 help 1344 This enables support for the GPIOs found on the STMPE I/O 1345 Expanders. 1346 1347config GPIO_TC3589X 1348 bool "TC3589X GPIOs" 1349 depends on MFD_TC3589X 1350 depends on OF_GPIO 1351 select GPIOLIB_IRQCHIP 1352 help 1353 This enables support for the GPIOs found on the TC3589X 1354 I/O Expander. 1355 1356config GPIO_TIMBERDALE 1357 bool "Support for timberdale GPIO IP" 1358 depends on MFD_TIMBERDALE 1359 help 1360 Add support for the GPIO IP in the timberdale FPGA. 1361 1362config GPIO_TPS65086 1363 tristate "TI TPS65086 GPO" 1364 depends on MFD_TPS65086 1365 help 1366 This driver supports the GPO on TI TPS65086x PMICs. 1367 1368config GPIO_TPS65218 1369 tristate "TPS65218 GPIO" 1370 depends on MFD_TPS65218 1371 help 1372 Select this option to enable GPIO driver for the TPS65218 1373 chip family. 1374 1375config GPIO_TPS6586X 1376 bool "TPS6586X GPIO" 1377 depends on MFD_TPS6586X 1378 help 1379 Select this option to enable GPIO driver for the TPS6586X 1380 chip family. 1381 1382config GPIO_TPS65910 1383 bool "TPS65910 GPIO" 1384 depends on MFD_TPS65910 1385 help 1386 Select this option to enable GPIO driver for the TPS65910 1387 chip family. 1388 1389config GPIO_TPS65912 1390 tristate "TI TPS65912 GPIO" 1391 depends on MFD_TPS65912 1392 help 1393 This driver supports TPS65912 GPIO chip. 1394 1395config GPIO_TPS68470 1396 bool "TPS68470 GPIO" 1397 depends on INTEL_SKL_INT3472 1398 help 1399 Select this option to enable GPIO driver for the TPS68470 1400 chip family. 1401 There are 7 GPIOs and few sensor-related GPIOs supported 1402 by the TPS68470. While the 7 GPIOs can be configured as 1403 input or output as appropriate, the sensor related GPIOs 1404 are "output only" GPIOs. 1405 1406 This driver config is bool, as the GPIO functionality 1407 of the TPS68470 must be available before dependent 1408 drivers are loaded. 1409 1410config GPIO_TQMX86 1411 tristate "TQ-Systems QTMX86 GPIO" 1412 depends on MFD_TQMX86 || COMPILE_TEST 1413 depends on HAS_IOPORT_MAP 1414 select GPIOLIB_IRQCHIP 1415 help 1416 This driver supports GPIO on the TQMX86 IO controller. 1417 1418config GPIO_TWL4030 1419 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1420 depends on TWL4030_CORE 1421 help 1422 Say yes here to access the GPIO signals of various multi-function 1423 power management chips from Texas Instruments. 1424 1425config GPIO_TWL6040 1426 tristate "TWL6040 GPO" 1427 depends on TWL6040_CORE 1428 help 1429 Say yes here to access the GPO signals of twl6040 1430 audio chip from Texas Instruments. 1431 1432config GPIO_UCB1400 1433 tristate "Philips UCB1400 GPIO" 1434 depends on UCB1400_CORE 1435 help 1436 This enables support for the Philips UCB1400 GPIO pins. 1437 The UCB1400 is an AC97 audio codec. 1438 1439config GPIO_WHISKEY_COVE 1440 tristate "GPIO support for Whiskey Cove PMIC" 1441 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1442 select GPIOLIB_IRQCHIP 1443 help 1444 Support for GPIO pins on Whiskey Cove PMIC. 1445 1446 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1447 inside. 1448 1449 This driver can also be built as a module. If so, the module will be 1450 called gpio-wcove. 1451 1452config GPIO_WM831X 1453 tristate "WM831x GPIOs" 1454 depends on MFD_WM831X 1455 help 1456 Say yes here to access the GPIO signals of WM831x power management 1457 chips from Wolfson Microelectronics. 1458 1459config GPIO_WM8350 1460 tristate "WM8350 GPIOs" 1461 depends on MFD_WM8350 1462 help 1463 Say yes here to access the GPIO signals of WM8350 power management 1464 chips from Wolfson Microelectronics. 1465 1466config GPIO_WM8994 1467 tristate "WM8994 GPIOs" 1468 depends on MFD_WM8994 1469 help 1470 Say yes here to access the GPIO signals of WM8994 audio hub 1471 CODECs from Wolfson Microelectronics. 1472 1473endmenu 1474 1475menu "PCI GPIO expanders" 1476 depends on PCI 1477 1478config GPIO_AMD8111 1479 tristate "AMD 8111 GPIO driver" 1480 depends on X86 || COMPILE_TEST 1481 depends on HAS_IOPORT_MAP 1482 help 1483 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1484 1485 Note that usually system firmware/ACPI handles GPIO pins on their 1486 own and users might easily break their systems with uncareful usage 1487 of this driver! 1488 1489 If unsure, say N 1490 1491config GPIO_BT8XX 1492 tristate "BT8XX GPIO abuser" 1493 depends on VIDEO_BT848=n 1494 help 1495 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1496 as a cheap PCI GPIO card. 1497 1498 This chip can be found on Miro, Hauppauge and STB TV-cards. 1499 1500 The card needs to be physically altered for using it as a 1501 GPIO card. For more information on how to build a GPIO card 1502 from a BT8xx TV card, see the documentation file at 1503 Documentation/driver-api/gpio/bt8xxgpio.rst 1504 1505 If unsure, say N. 1506 1507config GPIO_MERRIFIELD 1508 tristate "Intel Merrifield GPIO support" 1509 depends on X86_INTEL_MID 1510 select GPIOLIB_IRQCHIP 1511 help 1512 Say Y here to support Intel Merrifield GPIO. 1513 1514config GPIO_MLXBF 1515 tristate "Mellanox BlueField SoC GPIO" 1516 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1517 select GPIO_GENERIC 1518 help 1519 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1520 1521config GPIO_MLXBF2 1522 tristate "Mellanox BlueField 2 SoC GPIO" 1523 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1524 select GPIO_GENERIC 1525 help 1526 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1527 1528config GPIO_ML_IOH 1529 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1530 depends on X86 || COMPILE_TEST 1531 select GENERIC_IRQ_CHIP 1532 help 1533 ML7213 is companion chip for Intel Atom E6xx series. 1534 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1535 Hub) which is for IVI (In-Vehicle Infotainment) use. 1536 This driver can access the IOH's GPIO device. 1537 1538config GPIO_PCH 1539 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1540 depends on X86_32 || MIPS || COMPILE_TEST 1541 select GENERIC_IRQ_CHIP 1542 help 1543 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1544 which is an IOH (Input/Output Hub) for x86 embedded processor. 1545 This driver can access PCH GPIO device. 1546 1547 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1548 Output Hub), ML7223 and ML7831. 1549 ML7223 IOH is for MP (Media Phone) use. 1550 ML7831 IOH is for general purpose use. 1551 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1552 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1553 1554config GPIO_PCI_IDIO_16 1555 tristate "ACCES PCI-IDIO-16 GPIO support" 1556 select GPIOLIB_IRQCHIP 1557 help 1558 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1559 generated when any of the inputs change state (low to high or high to 1560 low). Input filter control is not supported by this driver, and the 1561 input filters are deactivated by this driver. 1562 1563config GPIO_PCIE_IDIO_24 1564 tristate "ACCES PCIe-IDIO-24 GPIO support" 1565 select GPIOLIB_IRQCHIP 1566 help 1567 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1568 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1569 when any of the inputs change state (low to high or high to low). 1570 Input filter control is not supported by this driver, and the input 1571 filters are deactivated by this driver. 1572 1573config GPIO_RDC321X 1574 tristate "RDC R-321x GPIO support" 1575 select MFD_CORE 1576 select MFD_RDC321X 1577 help 1578 Support for the RDC R321x SoC GPIOs over southbridge 1579 PCI configuration space. 1580 1581config GPIO_SODAVILLE 1582 bool "Intel Sodaville GPIO support" 1583 depends on X86 && OF 1584 select GPIO_GENERIC 1585 select GENERIC_IRQ_CHIP 1586 help 1587 Say Y here to support Intel Sodaville GPIO. 1588 1589endmenu 1590 1591menu "SPI GPIO expanders" 1592 depends on SPI_MASTER 1593 1594config GPIO_74X164 1595 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1596 depends on OF_GPIO 1597 help 1598 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1599 shift registers. This driver can be used to provide access 1600 to more GPIO outputs. 1601 1602config GPIO_MAX3191X 1603 tristate "Maxim MAX3191x industrial serializer" 1604 select CRC8 1605 help 1606 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1607 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1608 chip to make 8 digital 24V inputs available via SPI. Supports 1609 CRC checksums to guard against electromagnetic interference, 1610 as well as undervoltage and overtemperature detection. 1611 1612config GPIO_MAX7301 1613 tristate "Maxim MAX7301 GPIO expander" 1614 select GPIO_MAX730X 1615 help 1616 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1617 1618config GPIO_MC33880 1619 tristate "Freescale MC33880 high-side/low-side switch" 1620 help 1621 SPI driver for Freescale MC33880 high-side/low-side switch. 1622 This provides GPIO interface supporting inputs and outputs. 1623 1624config GPIO_PISOSR 1625 tristate "Generic parallel-in/serial-out shift register" 1626 help 1627 GPIO driver for SPI compatible parallel-in/serial-out shift 1628 registers. These are input only devices. 1629 1630config GPIO_XRA1403 1631 tristate "EXAR XRA1403 16-bit GPIO expander" 1632 select REGMAP_SPI 1633 help 1634 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1635 1636config GPIO_MOXTET 1637 tristate "Turris Mox Moxtet bus GPIO expander" 1638 depends on MOXTET 1639 help 1640 Say yes here if you are building for the Turris Mox router. 1641 This is the driver needed for configuring the GPIOs via the Moxtet 1642 bus. For example the Mox module with SFP cage needs this driver 1643 so that phylink can use corresponding GPIOs. 1644 1645endmenu 1646 1647menu "USB GPIO expanders" 1648 depends on USB 1649 1650config GPIO_VIPERBOARD 1651 tristate "Viperboard GPIO a & b support" 1652 depends on MFD_VIPERBOARD 1653 help 1654 Say yes here to access the GPIO signals of Nano River 1655 Technologies Viperboard. There are two GPIO chips on the 1656 board: gpioa and gpiob. 1657 See viperboard API specification and Nano 1658 River Tech's viperboard.h for detailed meaning 1659 of the module parameters. 1660 1661endmenu 1662 1663menu "Virtual GPIO drivers" 1664 1665config GPIO_AGGREGATOR 1666 tristate "GPIO Aggregator" 1667 help 1668 Say yes here to enable the GPIO Aggregator, which provides a way to 1669 aggregate existing GPIO lines into a new virtual GPIO chip. 1670 This can serve the following purposes: 1671 - Assign permissions for a collection of GPIO lines to a user, 1672 - Export a collection of GPIO lines to a virtual machine, 1673 - Provide a generic driver for a GPIO-operated device in an 1674 industrial control context, to be operated from userspace using 1675 the GPIO chardev interface. 1676 1677config GPIO_MOCKUP 1678 tristate "GPIO Testing Driver" 1679 select IRQ_SIM 1680 help 1681 This enables GPIO Testing driver, which provides a way to test GPIO 1682 subsystem through sysfs (or char device) and debugfs. 1683 User could use it through the script in 1684 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1685 it. 1686 1687config GPIO_VIRTIO 1688 tristate "VirtIO GPIO support" 1689 depends on VIRTIO 1690 select GPIOLIB_IRQCHIP 1691 help 1692 Say Y here to enable guest support for virtio-based GPIO controllers. 1693 1694 These virtual GPIOs can be routed to real GPIOs or attached to 1695 simulators on the host (like QEMU). 1696 1697endmenu 1698 1699endif 1700