1# SPDX-License-Identifier: GPL-2.0-only 2# 3# GPIO infrastructure and drivers 4# 5 6config ARCH_HAVE_CUSTOM_GPIO_H 7 bool 8 help 9 Selecting this config option from the architecture Kconfig allows 10 the architecture to provide a custom asm/gpio.h implementation 11 overriding the default implementations. New uses of this are 12 strongly discouraged. 13 14menuconfig GPIOLIB 15 bool "GPIO Support" 16 help 17 This enables GPIO support through the generic GPIO library. 18 You only need to enable this if you also want to enable 19 one or more of the GPIO drivers below. 20 21 If unsure, say N. 22 23if GPIOLIB 24 25config GPIOLIB_FASTPATH_LIMIT 26 int "Maximum number of GPIOs for fast path" 27 range 32 512 28 default 512 29 help 30 This adjusts the point at which certain APIs will switch from 31 using a stack allocated buffer to a dynamically allocated buffer. 32 33 You shouldn't need to change this unless you really need to 34 optimize either stack space or performance. Change this carefully 35 since setting an incorrect value could cause stack corruption. 36 37config OF_GPIO 38 def_bool y 39 depends on OF 40 depends on HAS_IOMEM 41 42config GPIO_ACPI 43 def_bool y 44 depends on ACPI 45 46config GPIOLIB_IRQCHIP 47 select IRQ_DOMAIN 48 bool 49 50config DEBUG_GPIO 51 bool "Debug GPIO calls" 52 depends on DEBUG_KERNEL 53 help 54 Say Y here to add some extra checks and diagnostics to GPIO calls. 55 These checks help ensure that GPIOs have been properly initialized 56 before they are used, and that sleeping calls are not made from 57 non-sleeping contexts. They can make bitbanged serial protocols 58 slower. The diagnostics help catch the type of setup errors 59 that are most common when setting up new platforms or boards. 60 61config GPIO_SYSFS 62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT 63 depends on SYSFS 64 select GPIO_CDEV # We need to encourage the new ABI 65 help 66 Say Y here to add the legacy sysfs interface for GPIOs. 67 68 This ABI is deprecated. If you want to use GPIO from userspace, 69 use the character device /dev/gpiochipN with the appropriate 70 ioctl() operations instead. 71 72config GPIO_CDEV 73 bool 74 prompt "Character device (/dev/gpiochipN) support" if EXPERT 75 default y 76 help 77 Say Y here to add the character device /dev/gpiochipN interface 78 for GPIOs. The character device allows userspace to control GPIOs 79 using ioctl() operations. 80 81 Only say N if you are sure that the GPIO character device is not 82 required. 83 84 If unsure, say Y. 85 86config GPIO_CDEV_V1 87 bool "Support GPIO ABI Version 1" 88 default y 89 depends on GPIO_CDEV 90 help 91 Say Y here to support version 1 of the GPIO CDEV ABI. 92 93 This ABI version is deprecated. 94 Please use the latest ABI for new developments. 95 96 If unsure, say Y. 97 98config GPIO_GENERIC 99 depends on HAS_IOMEM # Only for IOMEM drivers 100 tristate 101 102config GPIO_REGMAP 103 depends on REGMAP 104 tristate 105 106# put drivers in the right section, in alphabetical order 107 108# This symbol is selected by both I2C and SPI expanders 109config GPIO_MAX730X 110 tristate 111 112menu "Memory mapped GPIO drivers" 113 depends on HAS_IOMEM 114 115config GPIO_74XX_MMIO 116 tristate "GPIO driver for 74xx-ICs with MMIO access" 117 depends on OF_GPIO 118 select GPIO_GENERIC 119 help 120 Say yes here to support GPIO functionality for 74xx-compatible ICs 121 with MMIO access. Compatible models include: 122 1 bit: 741G125 (Input), 741G74 (Output) 123 2 bits: 742G125 (Input), 7474 (Output) 124 4 bits: 74125 (Input), 74175 (Output) 125 6 bits: 74365 (Input), 74174 (Output) 126 8 bits: 74244 (Input), 74273 (Output) 127 16 bits: 741624 (Input), 7416374 (Output) 128 129config GPIO_ALTERA 130 tristate "Altera GPIO" 131 depends on OF_GPIO 132 select GPIOLIB_IRQCHIP 133 help 134 Say Y or M here to build support for the Altera PIO device. 135 136 If driver is built as a module it will be called gpio-altera. 137 138config GPIO_AMDPT 139 tristate "AMD Promontory GPIO support" 140 depends on ACPI 141 select GPIO_GENERIC 142 help 143 Driver for GPIO functionality on Promontory IOHub. 144 Requires ACPI ASL code to enumerate as a platform device. 145 146config GPIO_ASPEED 147 tristate "Aspeed GPIO support" 148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 149 select GPIOLIB_IRQCHIP 150 help 151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 152 153config GPIO_ASPEED_SGPIO 154 bool "Aspeed SGPIO support" 155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 156 select GPIO_GENERIC 157 select GPIOLIB_IRQCHIP 158 help 159 Say Y here to support Aspeed AST2500 SGPIO functionality. 160 161config GPIO_ATH79 162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 163 default y if ATH79 164 depends on ATH79 || COMPILE_TEST 165 select GPIO_GENERIC 166 select GPIOLIB_IRQCHIP 167 help 168 Select this option to enable GPIO driver for 169 Atheros AR71XX/AR724X/AR913X SoC devices. 170 171config GPIO_RASPBERRYPI_EXP 172 tristate "Raspberry Pi 3 GPIO Expander" 173 default RASPBERRYPI_FIRMWARE 174 depends on OF_GPIO 175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 178 help 179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 180 the firmware mailbox to communicate with VideoCore on BCM283x chips. 181 182config GPIO_BCM_KONA 183 bool "Broadcom Kona GPIO" 184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 185 help 186 Turn on GPIO support for Broadcom "Kona" chips. 187 188config GPIO_BCM_XGS_IPROC 189 tristate "BRCM XGS iProc GPIO support" 190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 191 select GPIO_GENERIC 192 select GPIOLIB_IRQCHIP 193 default ARCH_BCM_IPROC 194 help 195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 196 197config GPIO_BRCMSTB 198 tristate "BRCMSTB GPIO support" 199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 201 select GPIO_GENERIC 202 select IRQ_DOMAIN 203 help 204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 205 206config GPIO_CADENCE 207 tristate "Cadence GPIO support" 208 depends on OF_GPIO 209 select GPIO_GENERIC 210 select GPIOLIB_IRQCHIP 211 help 212 Say yes here to enable support for Cadence GPIO controller. 213 214config GPIO_CLPS711X 215 tristate "CLPS711X GPIO support" 216 depends on ARCH_CLPS711X || COMPILE_TEST 217 select GPIO_GENERIC 218 help 219 Say yes here to support GPIO on CLPS711X SoCs. 220 221config GPIO_DAVINCI 222 bool "TI Davinci/Keystone GPIO support" 223 default y if ARCH_DAVINCI 224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 225 help 226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 227 228config GPIO_DWAPB 229 tristate "Synopsys DesignWare APB GPIO driver" 230 select GPIO_GENERIC 231 select GPIOLIB_IRQCHIP 232 help 233 Say Y or M here to build support for the Synopsys DesignWare APB 234 GPIO block. 235 236config GPIO_EIC_SPRD 237 tristate "Spreadtrum EIC support" 238 depends on ARCH_SPRD || COMPILE_TEST 239 depends on OF_GPIO 240 select GPIOLIB_IRQCHIP 241 help 242 Say yes here to support Spreadtrum EIC device. 243 244config GPIO_EM 245 tristate "Emma Mobile GPIO" 246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 247 help 248 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 249 250config GPIO_EN7523 251 tristate "Airoha GPIO support" 252 depends on ARCH_AIROHA 253 default ARCH_AIROHA 254 select GPIO_GENERIC 255 select GPIOLIB_IRQCHIP 256 help 257 Say Y or M here to support the GPIO controller block on the 258 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 259 260config GPIO_EP93XX 261 def_bool y 262 depends on ARCH_EP93XX 263 select GPIO_GENERIC 264 select GPIOLIB_IRQCHIP 265 266config GPIO_EXAR 267 tristate "Support for GPIO pins on XR17V352/354/358" 268 depends on SERIAL_8250_EXAR 269 select REGMAP_MMIO 270 help 271 Selecting this option will enable handling of GPIO pins present 272 on Exar XR17V352/354/358 chips. 273 274config GPIO_GE_FPGA 275 bool "GE FPGA based GPIO" 276 depends on GE_FPGA 277 select GPIO_GENERIC 278 help 279 Support for common GPIO functionality provided on some GE Single Board 280 Computers. 281 282 This driver provides basic support (configure as input or output, read 283 and write pin state) for GPIO implemented in a number of GE single 284 board computers. 285 286config GPIO_FTGPIO010 287 bool "Faraday FTGPIO010 GPIO" 288 depends on OF_GPIO 289 select GPIO_GENERIC 290 select GPIOLIB_IRQCHIP 291 default (ARCH_GEMINI || ARCH_MOXART) 292 help 293 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 294 Cortina systems Gemini platforms, Moxa ART and others. 295 296config GPIO_GENERIC_PLATFORM 297 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 298 select GPIO_GENERIC 299 help 300 Say yes here to support basic platform_device memory-mapped GPIO controllers. 301 302config GPIO_GRGPIO 303 tristate "Aeroflex Gaisler GRGPIO support" 304 depends on OF_GPIO 305 select GPIO_GENERIC 306 select IRQ_DOMAIN 307 help 308 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 309 VHDL IP core library. 310 311config GPIO_HISI 312 tristate "HiSilicon GPIO controller driver" 313 depends on (ARM64 && ACPI) || COMPILE_TEST 314 select GPIO_GENERIC 315 select GPIOLIB_IRQCHIP 316 help 317 Say Y or M here to build support for the HiSilicon GPIO controller 318 driver GPIO block. 319 This GPIO controller supports double-edge interrupt and multi-core 320 concurrent access. 321 322config GPIO_HLWD 323 tristate "Nintendo Wii (Hollywood) GPIO" 324 depends on OF_GPIO 325 select GPIO_GENERIC 326 select GPIOLIB_IRQCHIP 327 help 328 Select this to support the GPIO controller of the Nintendo Wii. 329 330 If unsure, say N. 331 332config GPIO_ICH 333 tristate "Intel ICH GPIO" 334 depends on X86 335 depends on LPC_ICH 336 help 337 Say yes here to support the GPIO functionality of a number of Intel 338 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 339 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 340 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 341 342 If unsure, say N. 343 344config GPIO_IOP 345 tristate "Intel IOP GPIO" 346 depends on ARCH_IOP32X || COMPILE_TEST 347 select GPIO_GENERIC 348 help 349 Say yes here to support the GPIO functionality of a number of Intel 350 IOP32X or IOP33X series of chips. 351 352 If unsure, say N. 353 354config GPIO_IXP4XX 355 bool "Intel IXP4xx GPIO" 356 depends on ARCH_IXP4XX 357 depends on OF 358 select GPIO_GENERIC 359 select GPIOLIB_IRQCHIP 360 select IRQ_DOMAIN_HIERARCHY 361 help 362 Say yes here to support the GPIO functionality of a number of Intel 363 IXP4xx series of chips. 364 365 If unsure, say N. 366 367config GPIO_LOGICVC 368 tristate "Xylon LogiCVC GPIO support" 369 depends on MFD_SYSCON && OF 370 help 371 Say yes here to support GPIO functionality of the Xylon LogiCVC 372 programmable logic block. 373 374config GPIO_LOONGSON 375 bool "Loongson-2/3 GPIO support" 376 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 377 help 378 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 379 380config GPIO_LPC18XX 381 tristate "NXP LPC18XX/43XX GPIO support" 382 default y if ARCH_LPC18XX 383 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 384 select IRQ_DOMAIN_HIERARCHY 385 help 386 Select this option to enable GPIO driver for 387 NXP LPC18XX/43XX devices. 388 389config GPIO_LPC32XX 390 tristate "NXP LPC32XX GPIO support" 391 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 392 help 393 Select this option to enable GPIO driver for 394 NXP LPC32XX devices. 395 396config GPIO_MB86S7X 397 tristate "GPIO support for Fujitsu MB86S7x Platforms" 398 help 399 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 400 401config GPIO_MENZ127 402 tristate "MEN 16Z127 GPIO support" 403 depends on MCB 404 select GPIO_GENERIC 405 help 406 Say yes here to support the MEN 16Z127 GPIO Controller. 407 408config GPIO_MM_LANTIQ 409 bool "Lantiq Memory mapped GPIOs" 410 depends on LANTIQ && SOC_XWAY 411 help 412 This enables support for memory mapped GPIOs on the External Bus Unit 413 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 414 created by attaching a 16-bit latch to the bus. 415 416config GPIO_MPC5200 417 def_bool y 418 depends on PPC_MPC52xx 419 420config GPIO_MPC8XXX 421 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 422 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 423 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 424 COMPILE_TEST 425 select GPIO_GENERIC 426 select IRQ_DOMAIN 427 help 428 Say Y here if you're going to use hardware that connects to the 429 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 430 431config GPIO_MT7621 432 bool "Mediatek MT7621 GPIO Support" 433 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 434 depends on OF_GPIO 435 select GPIO_GENERIC 436 select GPIOLIB_IRQCHIP 437 help 438 Say yes here to support the Mediatek MT7621 SoC GPIO device. 439 440config GPIO_MVEBU 441 def_bool y 442 depends on PLAT_ORION || ARCH_MVEBU 443 depends on OF_GPIO 444 select GENERIC_IRQ_CHIP 445 select REGMAP_MMIO 446 447config GPIO_MXC 448 tristate "i.MX GPIO support" 449 depends on ARCH_MXC || COMPILE_TEST 450 select GPIO_GENERIC 451 select GENERIC_IRQ_CHIP 452 453config GPIO_MXS 454 bool "Freescale MXS GPIO support" if COMPILE_TEST 455 depends on ARCH_MXS || COMPILE_TEST 456 default y if ARCH_MXS 457 select GPIO_GENERIC 458 select GENERIC_IRQ_CHIP 459 460config GPIO_OCTEON 461 tristate "Cavium OCTEON GPIO" 462 depends on CAVIUM_OCTEON_SOC 463 default y 464 help 465 Say yes here to support the on-chip GPIO lines on the OCTEON 466 family of SOCs. 467 468config GPIO_OMAP 469 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 470 default y if ARCH_OMAP 471 depends on ARM 472 select GENERIC_IRQ_CHIP 473 select GPIOLIB_IRQCHIP 474 help 475 Say yes here to enable GPIO support for TI OMAP SoCs. 476 477config GPIO_PL061 478 tristate "PrimeCell PL061 GPIO support" 479 depends on ARM_AMBA 480 select IRQ_DOMAIN 481 select GPIOLIB_IRQCHIP 482 help 483 Say yes here to support the PrimeCell PL061 GPIO device. 484 485config GPIO_PMIC_EIC_SPRD 486 tristate "Spreadtrum PMIC EIC support" 487 depends on MFD_SC27XX_PMIC || COMPILE_TEST 488 depends on OF_GPIO 489 select GPIOLIB_IRQCHIP 490 help 491 Say yes here to support Spreadtrum PMIC EIC device. 492 493config GPIO_PXA 494 bool "PXA GPIO support" 495 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 496 help 497 Say yes here to support the PXA GPIO device. 498 499config GPIO_RCAR 500 tristate "Renesas R-Car and RZ/G GPIO support" 501 depends on ARCH_RENESAS || COMPILE_TEST 502 select GPIOLIB_IRQCHIP 503 help 504 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 505 506config GPIO_RDA 507 bool "RDA Micro GPIO controller support" 508 depends on ARCH_RDA || COMPILE_TEST 509 depends on OF_GPIO 510 select GPIO_GENERIC 511 select GPIOLIB_IRQCHIP 512 help 513 Say Y here to support RDA Micro GPIO controller. 514 515config GPIO_REALTEK_OTTO 516 tristate "Realtek Otto GPIO support" 517 depends on MACH_REALTEK_RTL 518 default MACH_REALTEK_RTL 519 select GPIO_GENERIC 520 select GPIOLIB_IRQCHIP 521 help 522 The GPIO controller on the Otto MIPS platform supports up to two 523 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 524 are grouped in four 8-bit wide ports. 525 526 When built as a module, the module will be called realtek_otto_gpio. 527 528config GPIO_REG 529 bool 530 help 531 A 32-bit single register GPIO fixed in/out implementation. This 532 can be used to represent any register as a set of GPIO signals. 533 534config GPIO_ROCKCHIP 535 tristate "Rockchip GPIO support" 536 depends on ARCH_ROCKCHIP || COMPILE_TEST 537 select GENERIC_IRQ_CHIP 538 select GPIOLIB_IRQCHIP 539 default ARCH_ROCKCHIP 540 help 541 Say yes here to support GPIO on Rockchip SoCs. 542 543config GPIO_SAMA5D2_PIOBU 544 tristate "SAMA5D2 PIOBU GPIO support" 545 depends on MFD_SYSCON 546 depends on OF_GPIO 547 select GPIO_SYSCON 548 help 549 Say yes here to use the PIOBU pins as GPIOs. 550 551 PIOBU pins on the SAMA5D2 can be used as GPIOs. 552 The difference from regular GPIOs is that they 553 maintain their value during backup/self-refresh. 554 555config GPIO_SIFIVE 556 bool "SiFive GPIO support" 557 depends on OF_GPIO 558 select IRQ_DOMAIN_HIERARCHY 559 select GPIO_GENERIC 560 select GPIOLIB_IRQCHIP 561 select REGMAP_MMIO 562 help 563 Say yes here to support the GPIO device on SiFive SoCs. 564 565config GPIO_SIOX 566 tristate "SIOX GPIO support" 567 depends on SIOX 568 select GPIOLIB_IRQCHIP 569 help 570 Say yes here to support SIOX I/O devices. These are units connected 571 via a SIOX bus and have a number of fixed-direction I/O lines. 572 573config GPIO_SNPS_CREG 574 bool "Synopsys GPIO via CREG (Control REGisters) driver" 575 depends on ARC || COMPILE_TEST 576 depends on OF_GPIO 577 help 578 This driver supports GPIOs via CREG on various Synopsys SoCs. 579 This is a single-register MMIO GPIO driver for complex cases 580 where only several fields in register belong to GPIO lines and 581 each GPIO line owns a field with different length and on/off value. 582 583config GPIO_SPEAR_SPICS 584 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 585 depends on PLAT_SPEAR 586 select GENERIC_IRQ_CHIP 587 help 588 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 589 590config GPIO_SPRD 591 tristate "Spreadtrum GPIO support" 592 depends on ARCH_SPRD || COMPILE_TEST 593 depends on OF_GPIO 594 select GPIOLIB_IRQCHIP 595 help 596 Say yes here to support Spreadtrum GPIO device. 597 598config GPIO_STA2X11 599 bool "STA2x11/ConneXt GPIO support" 600 depends on MFD_STA2X11 601 select GENERIC_IRQ_CHIP 602 help 603 Say yes here to support the STA2x11/ConneXt GPIO device. 604 The GPIO module has 128 GPIO pins with alternate functions. 605 606config GPIO_STP_XWAY 607 bool "XWAY STP GPIOs" 608 depends on SOC_XWAY || COMPILE_TEST 609 depends on OF_GPIO 610 help 611 This enables support for the Serial To Parallel (STP) unit found on 612 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 613 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 614 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 615 phy status. 616 617config GPIO_SYSCON 618 tristate "GPIO based on SYSCON" 619 depends on MFD_SYSCON && OF 620 help 621 Say yes here to support GPIO functionality though SYSCON driver. 622 623config GPIO_TB10X 624 bool 625 select GPIO_GENERIC 626 select GENERIC_IRQ_CHIP 627 select OF_GPIO 628 629config GPIO_TEGRA 630 tristate "NVIDIA Tegra GPIO support" 631 default ARCH_TEGRA 632 depends on ARCH_TEGRA || COMPILE_TEST 633 depends on OF_GPIO 634 select GPIOLIB_IRQCHIP 635 select IRQ_DOMAIN_HIERARCHY 636 help 637 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 638 639config GPIO_TEGRA186 640 tristate "NVIDIA Tegra186 GPIO support" 641 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 642 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 643 depends on OF_GPIO 644 select GPIOLIB_IRQCHIP 645 select IRQ_DOMAIN_HIERARCHY 646 help 647 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 648 649config GPIO_TS4800 650 tristate "TS-4800 DIO blocks and compatibles" 651 depends on OF_GPIO 652 depends on SOC_IMX51 || COMPILE_TEST 653 select GPIO_GENERIC 654 help 655 This driver support TS-4800 FPGA GPIO controllers. 656 657config GPIO_THUNDERX 658 tristate "Cavium ThunderX/OCTEON-TX GPIO" 659 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 660 depends on PCI_MSI 661 select GPIOLIB_IRQCHIP 662 select IRQ_DOMAIN_HIERARCHY 663 select IRQ_FASTEOI_HIERARCHY_HANDLERS 664 help 665 Say yes here to support the on-chip GPIO lines on the ThunderX 666 and OCTEON-TX families of SoCs. 667 668config GPIO_UNIPHIER 669 tristate "UniPhier GPIO support" 670 depends on ARCH_UNIPHIER || COMPILE_TEST 671 depends on OF_GPIO 672 select IRQ_DOMAIN_HIERARCHY 673 help 674 Say yes here to support UniPhier GPIOs. 675 676config GPIO_VF610 677 def_bool y 678 depends on ARCH_MXC 679 select GPIOLIB_IRQCHIP 680 help 681 Say yes here to support i.MX or Vybrid vf610 GPIOs. 682 683config GPIO_VISCONTI 684 tristate "Toshiba Visconti GPIO support" 685 depends on ARCH_VISCONTI || COMPILE_TEST 686 depends on OF_GPIO 687 select GPIOLIB_IRQCHIP 688 select GPIO_GENERIC 689 select IRQ_DOMAIN_HIERARCHY 690 help 691 Say yes here to support GPIO on Tohisba Visconti. 692 693config GPIO_VR41XX 694 tristate "NEC VR4100 series General-purpose I/O Unit support" 695 depends on CPU_VR41XX 696 help 697 Say yes here to support the NEC VR4100 series General-purpose I/O Unit. 698 699config GPIO_VX855 700 tristate "VIA VX855/VX875 GPIO" 701 depends on (X86 || COMPILE_TEST) && PCI 702 select MFD_CORE 703 select MFD_VX855 704 help 705 Support access to the VX855/VX875 GPIO lines through the GPIO library. 706 707 This driver provides common support for accessing the device. 708 Additional drivers must be enabled in order to use the 709 functionality of the device. 710 711config GPIO_WCD934X 712 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 713 depends on MFD_WCD934X && OF_GPIO 714 help 715 This driver is to support GPIO block found on the Qualcomm Technologies 716 Inc WCD9340/WCD9341 Audio Codec. 717 718config GPIO_XGENE 719 bool "APM X-Gene GPIO controller support" 720 depends on ARM64 && OF_GPIO 721 help 722 This driver is to support the GPIO block within the APM X-Gene SoC 723 platform's generic flash controller. The GPIO pins are muxed with 724 the generic flash controller's address and data pins. Say yes 725 here to enable the GFC GPIO functionality. 726 727config GPIO_XGENE_SB 728 tristate "APM X-Gene GPIO standby controller support" 729 depends on (ARCH_XGENE || COMPILE_TEST) 730 select GPIO_GENERIC 731 select GPIOLIB_IRQCHIP 732 select IRQ_DOMAIN_HIERARCHY 733 help 734 This driver supports the GPIO block within the APM X-Gene 735 Standby Domain. Say yes here to enable the GPIO functionality. 736 737config GPIO_XILINX 738 tristate "Xilinx GPIO support" 739 select GPIOLIB_IRQCHIP 740 depends on OF_GPIO 741 help 742 Say yes here to support the Xilinx FPGA GPIO device. 743 744config GPIO_XLP 745 tristate "Cavium ThunderX2 GPIO support" 746 depends on ARCH_THUNDER2 || COMPILE_TEST 747 select GPIOLIB_IRQCHIP 748 help 749 This driver provides support for GPIO interface on Cavium's ThunderX2 750 CN99XX SoCs (Originally from Netlogic XLP). 751 752 If unsure, say N. 753 754config GPIO_XTENSA 755 bool "Xtensa GPIO32 support" 756 depends on XTENSA 757 depends on HAVE_XTENSA_GPIO32 758 depends on !SMP 759 help 760 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 761 and EXPSTATE (output) ports. 762 763config GPIO_ZEVIO 764 bool "LSI ZEVIO SoC memory mapped GPIOs" 765 depends on ARM && OF_GPIO 766 help 767 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 768 769config GPIO_ZYNQ 770 tristate "Xilinx Zynq GPIO support" 771 depends on ARCH_ZYNQ || ARCH_ZYNQMP 772 select GPIOLIB_IRQCHIP 773 help 774 Say yes here to support Xilinx Zynq GPIO controller. 775 776config GPIO_ZYNQMP_MODEPIN 777 tristate "ZynqMP ps-mode pin GPIO configuration driver" 778 depends on ZYNQMP_FIRMWARE 779 default ZYNQMP_FIRMWARE 780 help 781 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 782 driver. 783 784 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 785 is 4-bits boot mode pins. It sets and gets the status of 786 the ps-mode pin. Every pin can be configured as input/output. 787 788config GPIO_LOONGSON1 789 tristate "Loongson1 GPIO support" 790 depends on MACH_LOONGSON32 791 select GPIO_GENERIC 792 help 793 Say Y or M here to support GPIO on Loongson1 SoCs. 794 795config GPIO_AMD_FCH 796 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 797 help 798 This option enables driver for GPIO on AMD's Fusion Controller Hub, 799 as found on G-series SOCs (e.g. GX-412TC). 800 801 Note: This driver doesn't register itself automatically, as it 802 needs to be provided with platform-specific configuration. 803 (See e.g. CONFIG_PCENGINES_APU2.) 804 805config GPIO_MSC313 806 bool "MStar MSC313 GPIO support" 807 depends on ARCH_MSTARV7 808 default ARCH_MSTARV7 809 select GPIOLIB_IRQCHIP 810 select IRQ_DOMAIN_HIERARCHY 811 help 812 Say Y here to support the main GPIO block on MStar/SigmaStar 813 ARMv7-based SoCs. 814 815config GPIO_IDT3243X 816 tristate "IDT 79RC3243X GPIO support" 817 depends on MIKROTIK_RB532 || COMPILE_TEST 818 select GPIO_GENERIC 819 select GPIOLIB_IRQCHIP 820 help 821 Select this option to enable GPIO driver for 822 IDT 79RC3243X-based devices like Mikrotik RB532. 823 824 To compile this driver as a module, choose M here: the module will 825 be called gpio-idt3243x. 826 827endmenu 828 829menu "Port-mapped I/O GPIO drivers" 830 depends on X86 # Unconditional I/O space access 831 832config GPIO_104_DIO_48E 833 tristate "ACCES 104-DIO-48E GPIO support" 834 depends on PC104 835 select ISA_BUS_API 836 select GPIOLIB_IRQCHIP 837 help 838 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 839 104-DIO-24E). The base port addresses for the devices may be 840 configured via the base module parameter. The interrupt line numbers 841 for the devices may be configured via the irq module parameter. 842 843config GPIO_104_IDIO_16 844 tristate "ACCES 104-IDIO-16 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-IDIO-16 family (104-IDIO-16, 850 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 851 base port addresses for the devices may be configured via the base 852 module parameter. The interrupt line numbers for the devices may be 853 configured via the irq module parameter. 854 855config GPIO_104_IDI_48 856 tristate "ACCES 104-IDI-48 GPIO support" 857 depends on PC104 858 select ISA_BUS_API 859 select GPIOLIB_IRQCHIP 860 help 861 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 862 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 863 the devices may be configured via the base module parameter. The 864 interrupt line numbers for the devices may be configured via the irq 865 module parameter. 866 867config GPIO_F7188X 868 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 869 help 870 This option enables support for GPIOs found on Fintek Super-I/O 871 chips F71869, F71869A, F71882FG, F71889F and F81866. 872 873 To compile this driver as a module, choose M here: the module will 874 be called f7188x-gpio. 875 876config GPIO_GPIO_MM 877 tristate "Diamond Systems GPIO-MM GPIO support" 878 depends on PC104 879 select ISA_BUS_API 880 help 881 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 882 883 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 884 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 885 support for these 48 channels of digital I/O. 886 887 The base port addresses for the devices may be configured via the base 888 array module parameter. 889 890config GPIO_IT87 891 tristate "IT87xx GPIO support" 892 help 893 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 894 895 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 896 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 897 well. 898 899 To compile this driver as a module, choose M here: the module will 900 be called gpio_it87. 901 902config GPIO_SCH 903 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 904 depends on (X86 || COMPILE_TEST) && ACPI 905 depends on LPC_SCH 906 select GPIOLIB_IRQCHIP 907 help 908 Say yes here to support GPIO interface on Intel Poulsbo SCH, 909 Intel Tunnel Creek processor, Intel Centerton processor or 910 Intel Quark X1000 SoC. 911 912 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 913 powered by the core power rail and are turned off during sleep 914 modes (S3 and higher). The remaining four GPIOs are powered by 915 the Intel SCH suspend power supply. These GPIOs remain 916 active during S3. The suspend-powered GPIOs can be used to wake the 917 system from the Suspend-to-RAM state. 918 919 The Intel Tunnel Creek processor has 5 GPIOs powered by the 920 core power rail and 9 from suspend power supply. 921 922 The Intel Centerton processor has a total of 30 GPIO pins. 923 Twenty-one are powered by the core power rail and 9 from the 924 suspend power supply. 925 926 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 927 power well and 6 from the suspend power well. 928 929config GPIO_SCH311X 930 tristate "SMSC SCH311x SuperI/O GPIO" 931 help 932 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 933 SCH3116 "Super I/O" chipsets. 934 935 To compile this driver as a module, choose M here: the module will 936 be called gpio-sch311x. 937 938config GPIO_TS5500 939 tristate "TS-5500 DIO blocks and compatibles" 940 depends on TS5500 || COMPILE_TEST 941 help 942 This driver supports Digital I/O exposed by pin blocks found on some 943 Technologic Systems platforms. It includes, but is not limited to, 3 944 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 945 LCD port. 946 947config GPIO_WINBOND 948 tristate "Winbond Super I/O GPIO support" 949 select ISA_BUS_API 950 help 951 This option enables support for GPIOs found on Winbond Super I/O 952 chips. 953 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 954 supported. 955 956 You will need to provide a module parameter "gpios", or a 957 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 958 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 959 960 To compile this driver as a module, choose M here: the module will 961 be called gpio-winbond. 962 963config GPIO_WS16C48 964 tristate "WinSystems WS16C48 GPIO support" 965 select ISA_BUS_API 966 select GPIOLIB_IRQCHIP 967 help 968 Enables GPIO support for the WinSystems WS16C48. The base port 969 addresses for the devices may be configured via the base module 970 parameter. The interrupt line numbers for the devices may be 971 configured via the irq module parameter. 972 973endmenu 974 975menu "I2C GPIO expanders" 976 depends on I2C 977 978config GPIO_ADP5588 979 tristate "ADP5588 I2C GPIO expander" 980 help 981 This option enables support for 18 GPIOs found 982 on Analog Devices ADP5588 GPIO Expanders. 983 984config GPIO_ADP5588_IRQ 985 bool "Interrupt controller support for ADP5588" 986 depends on GPIO_ADP5588=y 987 select GPIOLIB_IRQCHIP 988 help 989 Say yes here to enable the adp5588 to be used as an interrupt 990 controller. It requires the driver to be built in the kernel. 991 992config GPIO_ADNP 993 tristate "Avionic Design N-bit GPIO expander" 994 depends on OF_GPIO 995 select GPIOLIB_IRQCHIP 996 help 997 This option enables support for N GPIOs found on Avionic Design 998 I2C GPIO expanders. The register space will be extended by powers 999 of two, so the controller will need to accommodate for that. For 1000 example: if a controller provides 48 pins, 6 registers will be 1001 enough to represent all pins, but the driver will assume a 1002 register layout for 64 pins (8 registers). 1003 1004config GPIO_GW_PLD 1005 tristate "Gateworks PLD GPIO Expander" 1006 depends on OF_GPIO 1007 help 1008 Say yes here to provide access to the Gateworks I2C PLD GPIO 1009 Expander. This is used at least on the Cambria GW2358-4. 1010 1011config GPIO_MAX7300 1012 tristate "Maxim MAX7300 GPIO expander" 1013 select GPIO_MAX730X 1014 help 1015 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1016 1017config GPIO_MAX732X 1018 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1019 help 1020 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1021 Port Expanders. Each IO port on these chips has a fixed role of 1022 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1023 Input and Output (designed by 'P'). The combinations are listed 1024 below: 1025 1026 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1027 max7322 (4I4O), max7323 (4P4O) 1028 1029 16 bits: max7324 (8I8O), max7325 (8P8O), 1030 max7326 (4I12O), max7327 (4P12O) 1031 1032 Board setup code must specify the model to use, and the start 1033 number for these GPIOs. 1034 1035config GPIO_MAX732X_IRQ 1036 bool "Interrupt controller support for MAX732x" 1037 depends on GPIO_MAX732X=y 1038 select GPIOLIB_IRQCHIP 1039 help 1040 Say yes here to enable the max732x to be used as an interrupt 1041 controller. It requires the driver to be built in the kernel. 1042 1043config GPIO_PCA953X 1044 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1045 select REGMAP_I2C 1046 help 1047 Say yes here to provide access to several register-oriented 1048 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1049 models include: 1050 1051 4 bits: pca9536, pca9537 1052 1053 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1054 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1055 1056 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1057 tca6416 1058 1059 24 bits: tca6424 1060 1061 40 bits: pca9505, pca9698 1062 1063config GPIO_PCA953X_IRQ 1064 bool "Interrupt controller support for PCA953x" 1065 depends on GPIO_PCA953X 1066 select GPIOLIB_IRQCHIP 1067 help 1068 Say yes here to enable the pca953x to be used as an interrupt 1069 controller. 1070 1071config GPIO_PCA9570 1072 tristate "PCA9570 4-Bit I2C GPO expander" 1073 help 1074 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1075 1076 To compile this driver as a module, choose M here: the module will 1077 be called gpio-pca9570. 1078 1079config GPIO_PCF857X 1080 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1081 select GPIOLIB_IRQCHIP 1082 select IRQ_DOMAIN 1083 help 1084 Say yes here to provide access to most "quasi-bidirectional" I2C 1085 GPIO expanders used for additional digital outputs or inputs. 1086 Most of these parts are from NXP, though TI is a second source for 1087 some of them. Compatible models include: 1088 1089 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1090 pca9670, pca9672, pca9674, pca9674a, 1091 max7328, max7329 1092 1093 16 bits: pcf8575, pcf8575c, pca8575, 1094 pca9671, pca9673, pca9675 1095 1096 Your board setup code will need to declare the expanders in 1097 use, and assign numbers to the GPIOs they expose. Those GPIOs 1098 can then be used from drivers and other kernel code, just like 1099 other GPIOs, but only accessible from task contexts. 1100 1101 This driver provides an in-kernel interface to those GPIOs using 1102 platform-neutral GPIO calls. 1103 1104config GPIO_TPIC2810 1105 tristate "TPIC2810 8-Bit I2C GPO expander" 1106 help 1107 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1108 1109 To compile this driver as a module, choose M here: the module will 1110 be called gpio-tpic2810. 1111 1112config GPIO_TS4900 1113 tristate "Technologic Systems FPGA I2C GPIO" 1114 depends on SOC_IMX6 || COMPILE_TEST 1115 select REGMAP_I2C 1116 help 1117 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1118 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1119 1120endmenu 1121 1122menu "MFD GPIO expanders" 1123 1124config GPIO_ADP5520 1125 tristate "GPIO Support for ADP5520 PMIC" 1126 depends on PMIC_ADP5520 1127 help 1128 This option enables support for on-chip GPIO found 1129 on Analog Devices ADP5520 PMICs. 1130 1131config GPIO_ALTERA_A10SR 1132 tristate "Altera Arria10 System Resource GPIO" 1133 depends on MFD_ALTERA_A10SR 1134 help 1135 Driver for Arria10 Development Kit GPIO expansion which 1136 includes reads of pushbuttons and DIP switches as well 1137 as writes to LEDs. 1138 1139config GPIO_ARIZONA 1140 tristate "Wolfson Microelectronics Arizona class devices" 1141 depends on MFD_ARIZONA 1142 help 1143 Support for GPIOs on Wolfson Arizona class devices. 1144 1145config GPIO_BD71815 1146 tristate "ROHM BD71815 PMIC GPIO support" 1147 depends on MFD_ROHM_BD71828 1148 help 1149 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1150 available on the ROHM PMIC. 1151 1152 This driver can also be built as a module. If so, the module 1153 will be called gpio-bd71815. 1154 1155config GPIO_BD71828 1156 tristate "ROHM BD71828 GPIO support" 1157 depends on MFD_ROHM_BD71828 1158 help 1159 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1160 available on the ROHM PMIC in total. The GPIOs are limited to 1161 outputs only and pins must be configured to GPIO outputs by 1162 OTP. Enable this only if you want to use these pins as outputs. 1163 1164 This driver can also be built as a module. If so, the module 1165 will be called gpio-bd71828. 1166 1167config GPIO_BD9571MWV 1168 tristate "ROHM BD9571 GPIO support" 1169 depends on MFD_BD9571MWV 1170 help 1171 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1172 available on the ROHM PMIC in total, both of which can also 1173 generate interrupts. 1174 1175 This driver can also be built as a module. If so, the module 1176 will be called gpio-bd9571mwv. 1177 1178config GPIO_CRYSTAL_COVE 1179 tristate "GPIO support for Crystal Cove PMIC" 1180 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1181 select GPIOLIB_IRQCHIP 1182 help 1183 Support for GPIO pins on Crystal Cove PMIC. 1184 1185 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1186 inside. 1187 1188 This driver can also be built as a module. If so, the module will be 1189 called gpio-crystalcove. 1190 1191config GPIO_CS5535 1192 tristate "AMD CS5535/CS5536 GPIO support" 1193 depends on X86 || MIPS || COMPILE_TEST 1194 depends on MFD_CS5535 1195 help 1196 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1197 can be used for quite a number of things. The CS5535/6 is found on 1198 AMD Geode and Lemote Yeeloong devices. 1199 1200 If unsure, say N. 1201 1202config GPIO_DA9052 1203 tristate "Dialog DA9052 GPIO" 1204 depends on PMIC_DA9052 1205 help 1206 Say yes here to enable the GPIO driver for the DA9052 chip. 1207 1208config GPIO_DA9055 1209 tristate "Dialog Semiconductor DA9055 GPIO" 1210 depends on MFD_DA9055 1211 help 1212 Say yes here to enable the GPIO driver for the DA9055 chip. 1213 1214 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1215 be controlled by this driver. 1216 1217 If driver is built as a module it will be called gpio-da9055. 1218 1219config GPIO_DLN2 1220 tristate "Diolan DLN2 GPIO support" 1221 depends on MFD_DLN2 1222 select GPIOLIB_IRQCHIP 1223 1224 help 1225 Select this option to enable GPIO driver for the Diolan DLN2 1226 board. 1227 1228 This driver can also be built as a module. If so, the module 1229 will be called gpio-dln2. 1230 1231config HTC_EGPIO 1232 bool "HTC EGPIO support" 1233 depends on ARM 1234 help 1235 This driver supports the CPLD egpio chip present on 1236 several HTC phones. It provides basic support for input 1237 pins, output pins, and IRQs. 1238 1239config GPIO_JANZ_TTL 1240 tristate "Janz VMOD-TTL Digital IO Module" 1241 depends on MFD_JANZ_CMODIO 1242 help 1243 This enables support for the Janz VMOD-TTL Digital IO module. 1244 This driver provides support for driving the pins in output 1245 mode only. Input mode is not supported. 1246 1247config GPIO_KEMPLD 1248 tristate "Kontron ETX / COMexpress GPIO" 1249 depends on MFD_KEMPLD 1250 help 1251 This enables support for the PLD GPIO interface on some Kontron ETX 1252 and COMexpress (ETXexpress) modules. 1253 1254 This driver can also be built as a module. If so, the module will be 1255 called gpio-kempld. 1256 1257config GPIO_LP3943 1258 tristate "TI/National Semiconductor LP3943 GPIO expander" 1259 depends on MFD_LP3943 1260 help 1261 GPIO driver for LP3943 MFD. 1262 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1263 Open drain outputs are required for this usage. 1264 1265config GPIO_LP873X 1266 tristate "TI LP873X GPO" 1267 depends on MFD_TI_LP873X 1268 help 1269 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1270 on LP873X PMICs. 1271 1272 This driver can also be built as a module. If so, the module will be 1273 called gpio-lp873x. 1274 1275config GPIO_LP87565 1276 tristate "TI LP87565 GPIO" 1277 depends on MFD_TI_LP87565 1278 help 1279 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1280 on LP87565 PMICs. 1281 1282 This driver can also be built as a module. If so, the module will be 1283 called gpio-lp87565. 1284 1285config GPIO_MADERA 1286 tristate "Cirrus Logic Madera class codecs" 1287 depends on PINCTRL_MADERA 1288 help 1289 Support for GPIOs on Cirrus Logic Madera class codecs. 1290 1291config GPIO_MAX77620 1292 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1293 depends on MFD_MAX77620 1294 select GPIOLIB_IRQCHIP 1295 help 1296 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1297 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1298 driver also provides interrupt support for each of the GPIOs. 1299 Say yes here to enable the max77620 to be used as GPIO controller. 1300 1301config GPIO_MAX77650 1302 tristate "Maxim MAX77650/77651 GPIO support" 1303 depends on MFD_MAX77650 1304 help 1305 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1306 These chips have a single pin that can be configured as GPIO. 1307 1308config GPIO_PALMAS 1309 bool "TI PALMAS series PMICs GPIO" 1310 depends on MFD_PALMAS 1311 help 1312 Select this option to enable GPIO driver for the TI PALMAS 1313 series chip family. 1314 1315config GPIO_RC5T583 1316 bool "RICOH RC5T583 GPIO" 1317 depends on MFD_RC5T583 1318 help 1319 Select this option to enable GPIO driver for the Ricoh RC5T583 1320 chip family. 1321 This driver provides the support for driving/reading the GPIO pins 1322 of RC5T583 device through standard GPIO library. 1323 1324config GPIO_SL28CPLD 1325 tristate "Kontron sl28cpld GPIO support" 1326 depends on MFD_SL28CPLD || COMPILE_TEST 1327 select GPIO_REGMAP 1328 select GPIOLIB_IRQCHIP 1329 select REGMAP_IRQ 1330 help 1331 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1332 1333 This driver can also be built as a module. If so, the module will be 1334 called gpio-sl28cpld. 1335 1336config GPIO_STMPE 1337 bool "STMPE GPIOs" 1338 depends on MFD_STMPE 1339 depends on OF_GPIO 1340 select GPIOLIB_IRQCHIP 1341 help 1342 This enables support for the GPIOs found on the STMPE I/O 1343 Expanders. 1344 1345config GPIO_TC3589X 1346 bool "TC3589X GPIOs" 1347 depends on MFD_TC3589X 1348 depends on OF_GPIO 1349 select GPIOLIB_IRQCHIP 1350 help 1351 This enables support for the GPIOs found on the TC3589X 1352 I/O Expander. 1353 1354config GPIO_TIMBERDALE 1355 bool "Support for timberdale GPIO IP" 1356 depends on MFD_TIMBERDALE 1357 help 1358 Add support for the GPIO IP in the timberdale FPGA. 1359 1360config GPIO_TN48M_CPLD 1361 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1362 depends on MFD_TN48M_CPLD 1363 select GPIO_REGMAP 1364 help 1365 This enables support for the GPIOs found on the Delta 1366 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1367 they are input-only or output-only type. 1368 1369 This driver can also be built as a module. If so, the 1370 module will be called gpio-tn48m. 1371 1372config GPIO_TPS65086 1373 tristate "TI TPS65086 GPO" 1374 depends on MFD_TPS65086 1375 help 1376 This driver supports the GPO on TI TPS65086x PMICs. 1377 1378config GPIO_TPS65218 1379 tristate "TPS65218 GPIO" 1380 depends on MFD_TPS65218 1381 help 1382 Select this option to enable GPIO driver for the TPS65218 1383 chip family. 1384 1385config GPIO_TPS6586X 1386 bool "TPS6586X GPIO" 1387 depends on MFD_TPS6586X 1388 help 1389 Select this option to enable GPIO driver for the TPS6586X 1390 chip family. 1391 1392config GPIO_TPS65910 1393 bool "TPS65910 GPIO" 1394 depends on MFD_TPS65910 1395 help 1396 Select this option to enable GPIO driver for the TPS65910 1397 chip family. 1398 1399config GPIO_TPS65912 1400 tristate "TI TPS65912 GPIO" 1401 depends on MFD_TPS65912 1402 help 1403 This driver supports TPS65912 GPIO chip. 1404 1405config GPIO_TPS68470 1406 tristate "TPS68470 GPIO" 1407 depends on INTEL_SKL_INT3472 1408 help 1409 Select this option to enable GPIO driver for the TPS68470 1410 chip family. 1411 There are 7 GPIOs and few sensor-related GPIOs supported 1412 by the TPS68470. While the 7 GPIOs can be configured as 1413 input or output as appropriate, the sensor related GPIOs 1414 are "output only" GPIOs. 1415 1416config GPIO_TQMX86 1417 tristate "TQ-Systems QTMX86 GPIO" 1418 depends on MFD_TQMX86 || COMPILE_TEST 1419 depends on HAS_IOPORT_MAP 1420 select GPIOLIB_IRQCHIP 1421 help 1422 This driver supports GPIO on the TQMX86 IO controller. 1423 1424config GPIO_TWL4030 1425 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1426 depends on TWL4030_CORE 1427 help 1428 Say yes here to access the GPIO signals of various multi-function 1429 power management chips from Texas Instruments. 1430 1431config GPIO_TWL6040 1432 tristate "TWL6040 GPO" 1433 depends on TWL6040_CORE 1434 help 1435 Say yes here to access the GPO signals of twl6040 1436 audio chip from Texas Instruments. 1437 1438config GPIO_UCB1400 1439 tristate "Philips UCB1400 GPIO" 1440 depends on UCB1400_CORE 1441 help 1442 This enables support for the Philips UCB1400 GPIO pins. 1443 The UCB1400 is an AC97 audio codec. 1444 1445config GPIO_WHISKEY_COVE 1446 tristate "GPIO support for Whiskey Cove PMIC" 1447 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1448 select GPIOLIB_IRQCHIP 1449 help 1450 Support for GPIO pins on Whiskey Cove PMIC. 1451 1452 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1453 inside. 1454 1455 This driver can also be built as a module. If so, the module will be 1456 called gpio-wcove. 1457 1458config GPIO_WM831X 1459 tristate "WM831x GPIOs" 1460 depends on MFD_WM831X 1461 help 1462 Say yes here to access the GPIO signals of WM831x power management 1463 chips from Wolfson Microelectronics. 1464 1465config GPIO_WM8350 1466 tristate "WM8350 GPIOs" 1467 depends on MFD_WM8350 1468 help 1469 Say yes here to access the GPIO signals of WM8350 power management 1470 chips from Wolfson Microelectronics. 1471 1472config GPIO_WM8994 1473 tristate "WM8994 GPIOs" 1474 depends on MFD_WM8994 1475 help 1476 Say yes here to access the GPIO signals of WM8994 audio hub 1477 CODECs from Wolfson Microelectronics. 1478 1479endmenu 1480 1481menu "PCI GPIO expanders" 1482 depends on PCI 1483 1484config GPIO_AMD8111 1485 tristate "AMD 8111 GPIO driver" 1486 depends on X86 || COMPILE_TEST 1487 depends on HAS_IOPORT_MAP 1488 help 1489 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1490 1491 Note that usually system firmware/ACPI handles GPIO pins on their 1492 own and users might easily break their systems with uncareful usage 1493 of this driver! 1494 1495 If unsure, say N 1496 1497config GPIO_BT8XX 1498 tristate "BT8XX GPIO abuser" 1499 depends on VIDEO_BT848=n 1500 help 1501 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1502 as a cheap PCI GPIO card. 1503 1504 This chip can be found on Miro, Hauppauge and STB TV-cards. 1505 1506 The card needs to be physically altered for using it as a 1507 GPIO card. For more information on how to build a GPIO card 1508 from a BT8xx TV card, see the documentation file at 1509 Documentation/driver-api/gpio/bt8xxgpio.rst 1510 1511 If unsure, say N. 1512 1513config GPIO_MERRIFIELD 1514 tristate "Intel Merrifield GPIO support" 1515 depends on X86_INTEL_MID 1516 select GPIOLIB_IRQCHIP 1517 help 1518 Say Y here to support Intel Merrifield GPIO. 1519 1520config GPIO_MLXBF 1521 tristate "Mellanox BlueField SoC GPIO" 1522 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1523 select GPIO_GENERIC 1524 help 1525 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1526 1527config GPIO_MLXBF2 1528 tristate "Mellanox BlueField 2 SoC GPIO" 1529 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1530 select GPIO_GENERIC 1531 help 1532 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1533 1534config GPIO_ML_IOH 1535 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1536 depends on X86 || COMPILE_TEST 1537 select GENERIC_IRQ_CHIP 1538 help 1539 ML7213 is companion chip for Intel Atom E6xx series. 1540 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1541 Hub) which is for IVI (In-Vehicle Infotainment) use. 1542 This driver can access the IOH's GPIO device. 1543 1544config GPIO_PCH 1545 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1546 depends on X86_32 || MIPS || COMPILE_TEST 1547 select GENERIC_IRQ_CHIP 1548 help 1549 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1550 which is an IOH (Input/Output Hub) for x86 embedded processor. 1551 This driver can access PCH GPIO device. 1552 1553 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1554 Output Hub), ML7223 and ML7831. 1555 ML7223 IOH is for MP (Media Phone) use. 1556 ML7831 IOH is for general purpose use. 1557 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1558 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1559 1560config GPIO_PCI_IDIO_16 1561 tristate "ACCES PCI-IDIO-16 GPIO support" 1562 select GPIOLIB_IRQCHIP 1563 help 1564 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1565 generated when any of the inputs change state (low to high or high to 1566 low). Input filter control is not supported by this driver, and the 1567 input filters are deactivated by this driver. 1568 1569config GPIO_PCIE_IDIO_24 1570 tristate "ACCES PCIe-IDIO-24 GPIO support" 1571 select GPIOLIB_IRQCHIP 1572 help 1573 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1574 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1575 when any of the inputs change state (low to high or high to low). 1576 Input filter control is not supported by this driver, and the input 1577 filters are deactivated by this driver. 1578 1579config GPIO_RDC321X 1580 tristate "RDC R-321x GPIO support" 1581 select MFD_CORE 1582 select MFD_RDC321X 1583 help 1584 Support for the RDC R321x SoC GPIOs over southbridge 1585 PCI configuration space. 1586 1587config GPIO_SODAVILLE 1588 bool "Intel Sodaville GPIO support" 1589 depends on X86 && OF 1590 select GPIO_GENERIC 1591 select GENERIC_IRQ_CHIP 1592 help 1593 Say Y here to support Intel Sodaville GPIO. 1594 1595endmenu 1596 1597menu "SPI GPIO expanders" 1598 depends on SPI_MASTER 1599 1600config GPIO_74X164 1601 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1602 depends on OF_GPIO 1603 help 1604 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1605 shift registers. This driver can be used to provide access 1606 to more GPIO outputs. 1607 1608config GPIO_MAX3191X 1609 tristate "Maxim MAX3191x industrial serializer" 1610 select CRC8 1611 help 1612 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1613 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1614 chip to make 8 digital 24V inputs available via SPI. Supports 1615 CRC checksums to guard against electromagnetic interference, 1616 as well as undervoltage and overtemperature detection. 1617 1618config GPIO_MAX7301 1619 tristate "Maxim MAX7301 GPIO expander" 1620 select GPIO_MAX730X 1621 help 1622 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1623 1624config GPIO_MC33880 1625 tristate "Freescale MC33880 high-side/low-side switch" 1626 help 1627 SPI driver for Freescale MC33880 high-side/low-side switch. 1628 This provides GPIO interface supporting inputs and outputs. 1629 1630config GPIO_PISOSR 1631 tristate "Generic parallel-in/serial-out shift register" 1632 help 1633 GPIO driver for SPI compatible parallel-in/serial-out shift 1634 registers. These are input only devices. 1635 1636config GPIO_XRA1403 1637 tristate "EXAR XRA1403 16-bit GPIO expander" 1638 select REGMAP_SPI 1639 help 1640 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1641 1642config GPIO_MOXTET 1643 tristate "Turris Mox Moxtet bus GPIO expander" 1644 depends on MOXTET 1645 help 1646 Say yes here if you are building for the Turris Mox router. 1647 This is the driver needed for configuring the GPIOs via the Moxtet 1648 bus. For example the Mox module with SFP cage needs this driver 1649 so that phylink can use corresponding GPIOs. 1650 1651endmenu 1652 1653menu "USB GPIO expanders" 1654 depends on USB 1655 1656config GPIO_VIPERBOARD 1657 tristate "Viperboard GPIO a & b support" 1658 depends on MFD_VIPERBOARD 1659 help 1660 Say yes here to access the GPIO signals of Nano River 1661 Technologies Viperboard. There are two GPIO chips on the 1662 board: gpioa and gpiob. 1663 See viperboard API specification and Nano 1664 River Tech's viperboard.h for detailed meaning 1665 of the module parameters. 1666 1667endmenu 1668 1669menu "Virtual GPIO drivers" 1670 1671config GPIO_AGGREGATOR 1672 tristate "GPIO Aggregator" 1673 help 1674 Say yes here to enable the GPIO Aggregator, which provides a way to 1675 aggregate existing GPIO lines into a new virtual GPIO chip. 1676 This can serve the following purposes: 1677 - Assign permissions for a collection of GPIO lines to a user, 1678 - Export a collection of GPIO lines to a virtual machine, 1679 - Provide a generic driver for a GPIO-operated device in an 1680 industrial control context, to be operated from userspace using 1681 the GPIO chardev interface. 1682 1683config GPIO_MOCKUP 1684 tristate "GPIO Testing Driver" 1685 select IRQ_SIM 1686 help 1687 This enables GPIO Testing driver, which provides a way to test GPIO 1688 subsystem through sysfs (or char device) and debugfs. 1689 User could use it through the script in 1690 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1691 it. 1692 1693config GPIO_VIRTIO 1694 tristate "VirtIO GPIO support" 1695 depends on VIRTIO 1696 select GPIOLIB_IRQCHIP 1697 help 1698 Say Y here to enable guest support for virtio-based GPIO controllers. 1699 1700 These virtual GPIOs can be routed to real GPIOs or attached to 1701 simulators on the host (like QEMU). 1702 1703config GPIO_SIM 1704 tristate "GPIO Simulator Module" 1705 select IRQ_SIM 1706 select CONFIGFS_FS 1707 help 1708 This enables the GPIO simulator - a configfs-based GPIO testing 1709 driver. 1710 1711endmenu 1712 1713endif 1714