1# SPDX-License-Identifier: GPL-2.0-only 2# 3# GPIO infrastructure and drivers 4# 5 6menuconfig GPIOLIB 7 bool "GPIO Support" 8 help 9 This enables GPIO support through the generic GPIO library. 10 You only need to enable this if you also want to enable 11 one or more of the GPIO drivers below. 12 13 If unsure, say N. 14 15if GPIOLIB 16 17config GPIOLIB_FASTPATH_LIMIT 18 int "Maximum number of GPIOs for fast path" 19 range 32 512 20 default 512 21 help 22 This adjusts the point at which certain APIs will switch from 23 using a stack allocated buffer to a dynamically allocated buffer. 24 25 You shouldn't need to change this unless you really need to 26 optimize either stack space or performance. Change this carefully 27 since setting an incorrect value could cause stack corruption. 28 29config OF_GPIO 30 def_bool y 31 depends on OF 32 depends on HAS_IOMEM 33 34config GPIO_ACPI 35 def_bool y 36 depends on ACPI 37 38config GPIOLIB_IRQCHIP 39 select IRQ_DOMAIN 40 bool 41 42config OF_GPIO_MM_GPIOCHIP 43 bool 44 help 45 This adds support for the legacy 'struct of_mm_gpio_chip' interface 46 from PowerPC. Existing drivers using this interface need to select 47 this symbol, but new drivers should use the generic gpio-regmap 48 infrastructure instead. 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 select 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 112config GPIO_IDIO_16 113 tristate 114 help 115 Enables support for the idio-16 library functions. The idio-16 library 116 provides functions to facilitate communication with devices within the 117 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16. 118 119 If built as a module its name will be gpio-idio-16. 120 121menu "Memory mapped GPIO drivers" 122 depends on HAS_IOMEM 123 124config GPIO_74XX_MMIO 125 tristate "GPIO driver for 74xx-ICs with MMIO access" 126 depends on OF_GPIO 127 select GPIO_GENERIC 128 help 129 Say yes here to support GPIO functionality for 74xx-compatible ICs 130 with MMIO access. Compatible models include: 131 1 bit: 741G125 (Input), 741G74 (Output) 132 2 bits: 742G125 (Input), 7474 (Output) 133 4 bits: 74125 (Input), 74175 (Output) 134 6 bits: 74365 (Input), 74174 (Output) 135 8 bits: 74244 (Input), 74273 (Output) 136 16 bits: 741624 (Input), 7416374 (Output) 137 138config GPIO_ALTERA 139 tristate "Altera GPIO" 140 depends on OF_GPIO 141 select GPIOLIB_IRQCHIP 142 select OF_GPIO_MM_GPIOCHIP 143 help 144 Say Y or M here to build support for the Altera PIO device. 145 146 If driver is built as a module it will be called gpio-altera. 147 148config GPIO_AMDPT 149 tristate "AMD Promontory GPIO support" 150 depends on ACPI 151 select GPIO_GENERIC 152 help 153 Driver for GPIO functionality on Promontory IOHub. 154 Requires ACPI ASL code to enumerate as a platform device. 155 156config GPIO_ASPEED 157 tristate "Aspeed GPIO support" 158 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 159 select GPIOLIB_IRQCHIP 160 help 161 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 162 163config GPIO_ASPEED_SGPIO 164 bool "Aspeed SGPIO support" 165 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 166 select GPIO_GENERIC 167 select GPIOLIB_IRQCHIP 168 help 169 Say Y here to support Aspeed AST2500 SGPIO functionality. 170 171config GPIO_ATH79 172 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 173 default y if ATH79 174 depends on ATH79 || COMPILE_TEST 175 select GPIO_GENERIC 176 select GPIOLIB_IRQCHIP 177 help 178 Select this option to enable GPIO driver for 179 Atheros AR71XX/AR724X/AR913X SoC devices. 180 181config GPIO_RASPBERRYPI_EXP 182 tristate "Raspberry Pi 3 GPIO Expander" 183 default RASPBERRYPI_FIRMWARE 184 depends on OF_GPIO 185 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 186 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 187 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 188 help 189 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 190 the firmware mailbox to communicate with VideoCore on BCM283x chips. 191 192config GPIO_BCM_KONA 193 bool "Broadcom Kona GPIO" 194 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 195 help 196 Turn on GPIO support for Broadcom "Kona" chips. 197 198config GPIO_BCM_XGS_IPROC 199 tristate "BRCM XGS iProc GPIO support" 200 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 201 select GPIO_GENERIC 202 select GPIOLIB_IRQCHIP 203 default ARCH_BCM_IPROC 204 help 205 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 206 207config GPIO_BRCMSTB 208 tristate "BRCMSTB GPIO support" 209 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 210 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 211 select GPIO_GENERIC 212 select IRQ_DOMAIN 213 help 214 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 215 216config GPIO_CADENCE 217 tristate "Cadence GPIO support" 218 depends on OF_GPIO 219 select GPIO_GENERIC 220 select GPIOLIB_IRQCHIP 221 help 222 Say yes here to enable support for Cadence GPIO controller. 223 224config GPIO_CLPS711X 225 tristate "CLPS711X GPIO support" 226 depends on ARCH_CLPS711X || COMPILE_TEST 227 select GPIO_GENERIC 228 help 229 Say yes here to support GPIO on CLPS711X SoCs. 230 231config GPIO_DAVINCI 232 tristate "TI Davinci/Keystone GPIO support" 233 default y if ARCH_DAVINCI 234 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 235 help 236 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 237 238config GPIO_DWAPB 239 tristate "Synopsys DesignWare APB GPIO driver" 240 select GPIO_GENERIC 241 select GPIOLIB_IRQCHIP 242 help 243 Say Y or M here to build support for the Synopsys DesignWare APB 244 GPIO block. 245 246config GPIO_EIC_SPRD 247 tristate "Spreadtrum EIC support" 248 depends on ARCH_SPRD || COMPILE_TEST 249 depends on OF_GPIO 250 select GPIOLIB_IRQCHIP 251 help 252 Say yes here to support Spreadtrum EIC device. 253 254config GPIO_EM 255 tristate "Emma Mobile GPIO" 256 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 257 help 258 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 259 260config GPIO_EN7523 261 tristate "Airoha GPIO support" 262 depends on ARCH_AIROHA 263 default ARCH_AIROHA 264 select GPIO_GENERIC 265 select GPIOLIB_IRQCHIP 266 help 267 Say Y or M here to support the GPIO controller block on the 268 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 269 270config GPIO_EP93XX 271 def_bool y 272 depends on ARCH_EP93XX 273 select GPIO_GENERIC 274 select GPIOLIB_IRQCHIP 275 276config GPIO_EXAR 277 tristate "Support for GPIO pins on XR17V352/354/358" 278 depends on SERIAL_8250_EXAR 279 select REGMAP_MMIO 280 help 281 Selecting this option will enable handling of GPIO pins present 282 on Exar XR17V352/354/358 chips. 283 284config GPIO_GE_FPGA 285 bool "GE FPGA based GPIO" 286 depends on GE_FPGA 287 select GPIO_GENERIC 288 help 289 Support for common GPIO functionality provided on some GE Single Board 290 Computers. 291 292 This driver provides basic support (configure as input or output, read 293 and write pin state) for GPIO implemented in a number of GE single 294 board computers. 295 296config GPIO_FTGPIO010 297 bool "Faraday FTGPIO010 GPIO" 298 depends on OF_GPIO 299 select GPIO_GENERIC 300 select GPIOLIB_IRQCHIP 301 default (ARCH_GEMINI || ARCH_MOXART) 302 help 303 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 304 Cortina systems Gemini platforms, Moxa ART and others. 305 306config GPIO_GENERIC_PLATFORM 307 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 308 select GPIO_GENERIC 309 help 310 Say yes here to support basic platform_device memory-mapped GPIO controllers. 311 312config GPIO_GRGPIO 313 tristate "Aeroflex Gaisler GRGPIO support" 314 depends on OF_GPIO 315 select GPIO_GENERIC 316 select IRQ_DOMAIN 317 help 318 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 319 VHDL IP core library. 320 321config GPIO_HISI 322 tristate "HiSilicon GPIO controller driver" 323 depends on ARM64 || COMPILE_TEST 324 select GPIO_GENERIC 325 select GPIOLIB_IRQCHIP 326 help 327 Say Y or M here to build support for the HiSilicon GPIO controller 328 driver GPIO block. 329 This GPIO controller supports double-edge interrupt and multi-core 330 concurrent access. 331 332config GPIO_HLWD 333 tristate "Nintendo Wii (Hollywood) GPIO" 334 depends on OF_GPIO 335 select GPIO_GENERIC 336 select GPIOLIB_IRQCHIP 337 help 338 Select this to support the GPIO controller of the Nintendo Wii. 339 340 If unsure, say N. 341 342config GPIO_ICH 343 tristate "Intel ICH GPIO" 344 depends on X86 345 depends on LPC_ICH 346 help 347 Say yes here to support the GPIO functionality of a number of Intel 348 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 349 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 350 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 351 352 If unsure, say N. 353 354config GPIO_IMX_SCU 355 def_bool y 356 depends on IMX_SCU 357 358config GPIO_IXP4XX 359 bool "Intel IXP4xx GPIO" 360 depends on ARCH_IXP4XX 361 depends on OF 362 select GPIO_GENERIC 363 select GPIOLIB_IRQCHIP 364 select IRQ_DOMAIN_HIERARCHY 365 help 366 Say yes here to support the GPIO functionality of a number of Intel 367 IXP4xx series of chips. 368 369 If unsure, say N. 370 371config GPIO_LOGICVC 372 tristate "Xylon LogiCVC GPIO support" 373 depends on MFD_SYSCON && OF 374 help 375 Say yes here to support GPIO functionality of the Xylon LogiCVC 376 programmable logic block. 377 378config GPIO_LOONGSON 379 bool "Loongson-2/3 GPIO support" 380 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 381 help 382 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 383 384config GPIO_LOONGSON_64BIT 385 tristate "Loongson 64 bit GPIO support" 386 depends on LOONGARCH || COMPILE_TEST 387 depends on OF_GPIO 388 select GPIO_GENERIC 389 help 390 Say yes here to support the GPIO functionality of a number of 391 Loongson series of chips. The Loongson GPIO controller supports 392 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and 393 the remaining 56 are reused with other functions, with edge or 394 level triggered interrupts. 395 396config GPIO_LPC18XX 397 tristate "NXP LPC18XX/43XX GPIO support" 398 default y if ARCH_LPC18XX 399 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 400 select IRQ_DOMAIN_HIERARCHY 401 help 402 Select this option to enable GPIO driver for 403 NXP LPC18XX/43XX devices. 404 405config GPIO_LPC32XX 406 tristate "NXP LPC32XX GPIO support" 407 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 408 help 409 Select this option to enable GPIO driver for 410 NXP LPC32XX devices. 411 412config GPIO_MB86S7X 413 tristate "GPIO support for Fujitsu MB86S7x Platforms" 414 help 415 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 416 417config GPIO_MENZ127 418 tristate "MEN 16Z127 GPIO support" 419 depends on MCB 420 select GPIO_GENERIC 421 help 422 Say yes here to support the MEN 16Z127 GPIO Controller. 423 424config GPIO_MM_LANTIQ 425 bool "Lantiq Memory mapped GPIOs" 426 depends on LANTIQ && SOC_XWAY 427 select OF_GPIO_MM_GPIOCHIP 428 help 429 This enables support for memory mapped GPIOs on the External Bus Unit 430 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 431 created by attaching a 16-bit latch to the bus. 432 433config GPIO_MPC5200 434 def_bool y 435 depends on PPC_MPC52xx 436 select OF_GPIO_MM_GPIOCHIP 437 438config GPIO_MPC8XXX 439 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 440 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 441 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 442 COMPILE_TEST 443 select GPIO_GENERIC 444 select IRQ_DOMAIN 445 help 446 Say Y here if you're going to use hardware that connects to the 447 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 448 449config GPIO_MT7621 450 bool "Mediatek MT7621 GPIO Support" 451 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 452 depends on OF_GPIO 453 select GPIO_GENERIC 454 select GPIOLIB_IRQCHIP 455 help 456 Say yes here to support the Mediatek MT7621 SoC GPIO device. 457 458config GPIO_MVEBU 459 def_bool y 460 depends on PLAT_ORION || ARCH_MVEBU 461 depends on OF_GPIO 462 select GENERIC_IRQ_CHIP 463 select REGMAP_MMIO 464 465config GPIO_MXC 466 tristate "i.MX GPIO support" 467 depends on ARCH_MXC || COMPILE_TEST 468 select GPIO_GENERIC 469 select GENERIC_IRQ_CHIP 470 471config GPIO_MXS 472 bool "Freescale MXS GPIO support" if COMPILE_TEST 473 depends on ARCH_MXS || COMPILE_TEST 474 default y if ARCH_MXS 475 select GPIO_GENERIC 476 select GENERIC_IRQ_CHIP 477 478config GPIO_OCTEON 479 tristate "Cavium OCTEON GPIO" 480 depends on CAVIUM_OCTEON_SOC 481 default y 482 help 483 Say yes here to support the on-chip GPIO lines on the OCTEON 484 family of SOCs. 485 486config GPIO_OMAP 487 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 488 default y if ARCH_OMAP 489 depends on ARM 490 select GENERIC_IRQ_CHIP 491 select GPIOLIB_IRQCHIP 492 help 493 Say yes here to enable GPIO support for TI OMAP SoCs. 494 495config GPIO_PL061 496 tristate "PrimeCell PL061 GPIO support" 497 depends on ARM_AMBA 498 select IRQ_DOMAIN 499 select GPIOLIB_IRQCHIP 500 help 501 Say yes here to support the PrimeCell PL061 GPIO device. 502 503config GPIO_PXA 504 bool "PXA GPIO support" 505 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 506 help 507 Say yes here to support the PXA GPIO device. 508 509config GPIO_RCAR 510 tristate "Renesas R-Car and RZ/G GPIO support" 511 depends on ARCH_RENESAS || COMPILE_TEST 512 select GPIOLIB_IRQCHIP 513 help 514 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 515 516config GPIO_RDA 517 bool "RDA Micro GPIO controller support" 518 depends on ARCH_RDA || COMPILE_TEST 519 depends on OF_GPIO 520 select GPIO_GENERIC 521 select GPIOLIB_IRQCHIP 522 help 523 Say Y here to support RDA Micro GPIO controller. 524 525config GPIO_REALTEK_OTTO 526 tristate "Realtek Otto GPIO support" 527 depends on MACH_REALTEK_RTL 528 default MACH_REALTEK_RTL 529 select GPIO_GENERIC 530 select GPIOLIB_IRQCHIP 531 help 532 The GPIO controller on the Otto MIPS platform supports up to two 533 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 534 are grouped in four 8-bit wide ports. 535 536 When built as a module, the module will be called realtek_otto_gpio. 537 538config GPIO_REG 539 bool 540 help 541 A 32-bit single register GPIO fixed in/out implementation. This 542 can be used to represent any register as a set of GPIO signals. 543 544config GPIO_ROCKCHIP 545 tristate "Rockchip GPIO support" 546 depends on ARCH_ROCKCHIP || COMPILE_TEST 547 select GENERIC_IRQ_CHIP 548 select GPIOLIB_IRQCHIP 549 default ARCH_ROCKCHIP 550 help 551 Say yes here to support GPIO on Rockchip SoCs. 552 553config GPIO_SAMA5D2_PIOBU 554 tristate "SAMA5D2 PIOBU GPIO support" 555 depends on MFD_SYSCON 556 depends on OF_GPIO 557 depends on ARCH_AT91 || COMPILE_TEST 558 select GPIO_SYSCON 559 help 560 Say yes here to use the PIOBU pins as GPIOs. 561 562 PIOBU pins on the SAMA5D2 can be used as GPIOs. 563 The difference from regular GPIOs is that they 564 maintain their value during backup/self-refresh. 565 566config GPIO_SIFIVE 567 bool "SiFive GPIO support" 568 depends on OF_GPIO 569 select IRQ_DOMAIN_HIERARCHY 570 select GPIO_GENERIC 571 select GPIOLIB_IRQCHIP 572 select REGMAP_MMIO 573 help 574 Say yes here to support the GPIO device on SiFive SoCs. 575 576config GPIO_SIOX 577 tristate "SIOX GPIO support" 578 depends on SIOX 579 select GPIOLIB_IRQCHIP 580 help 581 Say yes here to support SIOX I/O devices. These are units connected 582 via a SIOX bus and have a number of fixed-direction I/O lines. 583 584config GPIO_SNPS_CREG 585 bool "Synopsys GPIO via CREG (Control REGisters) driver" 586 depends on ARC || COMPILE_TEST 587 depends on OF_GPIO 588 help 589 This driver supports GPIOs via CREG on various Synopsys SoCs. 590 This is a single-register MMIO GPIO driver for complex cases 591 where only several fields in register belong to GPIO lines and 592 each GPIO line owns a field with different length and on/off value. 593 594config GPIO_SPEAR_SPICS 595 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 596 depends on PLAT_SPEAR 597 select GENERIC_IRQ_CHIP 598 help 599 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 600 601config GPIO_SPRD 602 tristate "Spreadtrum GPIO support" 603 depends on ARCH_SPRD || COMPILE_TEST 604 depends on OF_GPIO 605 select GPIOLIB_IRQCHIP 606 help 607 Say yes here to support Spreadtrum GPIO device. 608 609config GPIO_STP_XWAY 610 bool "XWAY STP GPIOs" 611 depends on SOC_XWAY || COMPILE_TEST 612 depends on OF_GPIO 613 help 614 This enables support for the Serial To Parallel (STP) unit found on 615 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 616 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 617 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 618 phy status. 619 620config GPIO_SYSCON 621 tristate "GPIO based on SYSCON" 622 depends on MFD_SYSCON && OF 623 help 624 Say yes here to support GPIO functionality though SYSCON driver. 625 626config GPIO_TANGIER 627 tristate 628 select GPIOLIB_IRQCHIP 629 help 630 GPIO support for Intel Tangier and compatible platforms. 631 Currently supported: 632 - Elkhart Lake 633 - Merrifield 634 635 If built as a module its name will be gpio-tangier. 636 637config GPIO_TB10X 638 bool 639 select GPIO_GENERIC 640 select GENERIC_IRQ_CHIP 641 select OF_GPIO 642 643config GPIO_TEGRA 644 tristate "NVIDIA Tegra GPIO support" 645 default ARCH_TEGRA 646 depends on ARCH_TEGRA || COMPILE_TEST 647 depends on OF_GPIO 648 select GPIOLIB_IRQCHIP 649 select IRQ_DOMAIN_HIERARCHY 650 help 651 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 652 653config GPIO_TEGRA186 654 tristate "NVIDIA Tegra186 GPIO support" 655 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 656 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 657 depends on OF_GPIO 658 select GPIOLIB_IRQCHIP 659 select IRQ_DOMAIN_HIERARCHY 660 help 661 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 662 663config GPIO_TS4800 664 tristate "TS-4800 DIO blocks and compatibles" 665 depends on OF_GPIO 666 depends on SOC_IMX51 || COMPILE_TEST 667 select GPIO_GENERIC 668 help 669 This driver support TS-4800 FPGA GPIO controllers. 670 671config GPIO_THUNDERX 672 tristate "Cavium ThunderX/OCTEON-TX GPIO" 673 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 674 depends on PCI_MSI 675 select GPIOLIB_IRQCHIP 676 select IRQ_DOMAIN_HIERARCHY 677 select IRQ_FASTEOI_HIERARCHY_HANDLERS 678 help 679 Say yes here to support the on-chip GPIO lines on the ThunderX 680 and OCTEON-TX families of SoCs. 681 682config GPIO_UNIPHIER 683 tristate "UniPhier GPIO support" 684 depends on ARCH_UNIPHIER || COMPILE_TEST 685 depends on OF_GPIO 686 select IRQ_DOMAIN_HIERARCHY 687 help 688 Say yes here to support UniPhier GPIOs. 689 690config GPIO_VF610 691 def_bool y 692 depends on ARCH_MXC 693 select GPIOLIB_IRQCHIP 694 help 695 Say yes here to support i.MX or Vybrid vf610 GPIOs. 696 697config GPIO_VISCONTI 698 tristate "Toshiba Visconti GPIO support" 699 depends on ARCH_VISCONTI || COMPILE_TEST 700 depends on OF_GPIO 701 select GPIOLIB_IRQCHIP 702 select GPIO_GENERIC 703 select IRQ_DOMAIN_HIERARCHY 704 help 705 Say yes here to support GPIO on Tohisba Visconti. 706 707config GPIO_VX855 708 tristate "VIA VX855/VX875 GPIO" 709 depends on (X86 || COMPILE_TEST) && PCI 710 select MFD_CORE 711 select MFD_VX855 712 help 713 Support access to the VX855/VX875 GPIO lines through the GPIO library. 714 715 This driver provides common support for accessing the device. 716 Additional drivers must be enabled in order to use the 717 functionality of the device. 718 719config GPIO_WCD934X 720 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 721 depends on MFD_WCD934X && OF_GPIO 722 help 723 This driver is to support GPIO block found on the Qualcomm Technologies 724 Inc WCD9340/WCD9341 Audio Codec. 725 726config GPIO_XGENE 727 bool "APM X-Gene GPIO controller support" 728 depends on ARM64 && OF_GPIO 729 help 730 This driver is to support the GPIO block within the APM X-Gene SoC 731 platform's generic flash controller. The GPIO pins are muxed with 732 the generic flash controller's address and data pins. Say yes 733 here to enable the GFC GPIO functionality. 734 735config GPIO_XGENE_SB 736 tristate "APM X-Gene GPIO standby controller support" 737 depends on (ARCH_XGENE || COMPILE_TEST) 738 select GPIO_GENERIC 739 select GPIOLIB_IRQCHIP 740 select IRQ_DOMAIN_HIERARCHY 741 help 742 This driver supports the GPIO block within the APM X-Gene 743 Standby Domain. Say yes here to enable the GPIO functionality. 744 745config GPIO_XILINX 746 tristate "Xilinx GPIO support" 747 select GPIOLIB_IRQCHIP 748 depends on OF_GPIO 749 help 750 Say yes here to support the Xilinx FPGA GPIO device. 751 752config GPIO_XLP 753 tristate "Cavium ThunderX2 GPIO support" 754 depends on ARCH_THUNDER2 || COMPILE_TEST 755 select GPIOLIB_IRQCHIP 756 help 757 This driver provides support for GPIO interface on Cavium's ThunderX2 758 CN99XX SoCs (Originally from Netlogic XLP). 759 760 If unsure, say N. 761 762config GPIO_XTENSA 763 bool "Xtensa GPIO32 support" 764 depends on XTENSA 765 depends on HAVE_XTENSA_GPIO32 766 depends on !SMP 767 help 768 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 769 and EXPSTATE (output) ports. 770 771config GPIO_ZEVIO 772 bool "LSI ZEVIO SoC memory mapped GPIOs" 773 depends on ARM 774 help 775 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 776 777config GPIO_ZYNQ 778 tristate "Xilinx Zynq GPIO support" 779 depends on ARCH_ZYNQ || ARCH_ZYNQMP 780 select GPIOLIB_IRQCHIP 781 help 782 Say yes here to support Xilinx Zynq GPIO controller. 783 784config GPIO_ZYNQMP_MODEPIN 785 tristate "ZynqMP ps-mode pin GPIO configuration driver" 786 depends on ZYNQMP_FIRMWARE 787 default ZYNQMP_FIRMWARE 788 help 789 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 790 driver. 791 792 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 793 is 4-bits boot mode pins. It sets and gets the status of 794 the ps-mode pin. Every pin can be configured as input/output. 795 796config GPIO_LOONGSON1 797 tristate "Loongson1 GPIO support" 798 depends on MACH_LOONGSON32 799 select GPIO_GENERIC 800 help 801 Say Y or M here to support GPIO on Loongson1 SoCs. 802 803config GPIO_AMD_FCH 804 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 805 help 806 This option enables driver for GPIO on AMD's Fusion Controller Hub, 807 as found on G-series SOCs (e.g. GX-412TC). 808 809 Note: This driver doesn't register itself automatically, as it 810 needs to be provided with platform-specific configuration. 811 (See e.g. CONFIG_PCENGINES_APU2.) 812 813config GPIO_MSC313 814 bool "MStar MSC313 GPIO support" 815 depends on ARCH_MSTARV7 816 default ARCH_MSTARV7 817 select GPIOLIB_IRQCHIP 818 select IRQ_DOMAIN_HIERARCHY 819 help 820 Say Y here to support the main GPIO block on MStar/SigmaStar 821 ARMv7-based SoCs. 822 823config GPIO_IDT3243X 824 tristate "IDT 79RC3243X GPIO support" 825 depends on MIKROTIK_RB532 || COMPILE_TEST 826 select GPIO_GENERIC 827 select GPIOLIB_IRQCHIP 828 help 829 Select this option to enable GPIO driver for 830 IDT 79RC3243X-based devices like Mikrotik RB532. 831 832 To compile this driver as a module, choose M here: the module will 833 be called gpio-idt3243x. 834 835endmenu 836 837menu "Port-mapped I/O GPIO drivers" 838 depends on X86 # Unconditional I/O space access 839 840config GPIO_I8255 841 tristate 842 select GPIO_REGMAP 843 help 844 Enables support for the i8255 interface library functions. The i8255 845 interface library provides functions to facilitate communication with 846 interfaces compatible with the venerable Intel 8255 Programmable 847 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 848 in the early 1970s but compatible interfaces are nowadays typically 849 found embedded in larger VLSI processing chips and FPGA components. 850 851 If built as a module its name will be gpio-i8255. 852 853config GPIO_104_DIO_48E 854 tristate "ACCES 104-DIO-48E GPIO support" 855 depends on PC104 856 select ISA_BUS_API 857 select REGMAP_MMIO 858 select REGMAP_IRQ 859 select GPIOLIB_IRQCHIP 860 select GPIO_I8255 861 help 862 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 863 104-DIO-24E). The base port addresses for the devices may be 864 configured via the base module parameter. The interrupt line numbers 865 for the devices may be configured via the irq module parameter. 866 867config GPIO_104_IDIO_16 868 tristate "ACCES 104-IDIO-16 GPIO support" 869 depends on PC104 870 select ISA_BUS_API 871 select GPIOLIB_IRQCHIP 872 select GPIO_IDIO_16 873 help 874 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 875 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 876 base port addresses for the devices may be configured via the base 877 module parameter. The interrupt line numbers for the devices may be 878 configured via the irq module parameter. 879 880config GPIO_104_IDI_48 881 tristate "ACCES 104-IDI-48 GPIO support" 882 depends on PC104 883 select ISA_BUS_API 884 select REGMAP_MMIO 885 select REGMAP_IRQ 886 select GPIOLIB_IRQCHIP 887 select GPIO_REGMAP 888 help 889 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 890 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 891 the devices may be configured via the base module parameter. The 892 interrupt line numbers for the devices may be configured via the irq 893 module parameter. 894 895config GPIO_F7188X 896 tristate "Fintek and Nuvoton Super-I/O GPIO support" 897 help 898 This option enables support for GPIOs found on Fintek Super-I/O 899 chips F71869, F71869A, F71882FG, F71889F and F81866. 900 As well as Nuvoton Super-I/O chip NCT6116D. 901 902 To compile this driver as a module, choose M here: the module will 903 be called f7188x-gpio. 904 905config GPIO_GPIO_MM 906 tristate "Diamond Systems GPIO-MM GPIO support" 907 depends on PC104 908 select ISA_BUS_API 909 select REGMAP_MMIO 910 select GPIO_I8255 911 help 912 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 913 914 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 915 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 916 support for these 48 channels of digital I/O. 917 918 The base port addresses for the devices may be configured via the base 919 array module parameter. 920 921config GPIO_IT87 922 tristate "IT87xx GPIO support" 923 help 924 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 925 926 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 927 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 928 well. 929 930 To compile this driver as a module, choose M here: the module will 931 be called gpio_it87. 932 933config GPIO_SCH 934 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 935 depends on (X86 || COMPILE_TEST) && ACPI 936 depends on LPC_SCH 937 select GPIOLIB_IRQCHIP 938 help 939 Say yes here to support GPIO interface on Intel Poulsbo SCH, 940 Intel Tunnel Creek processor, Intel Centerton processor or 941 Intel Quark X1000 SoC. 942 943 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 944 powered by the core power rail and are turned off during sleep 945 modes (S3 and higher). The remaining four GPIOs are powered by 946 the Intel SCH suspend power supply. These GPIOs remain 947 active during S3. The suspend-powered GPIOs can be used to wake the 948 system from the Suspend-to-RAM state. 949 950 The Intel Tunnel Creek processor has 5 GPIOs powered by the 951 core power rail and 9 from suspend power supply. 952 953 The Intel Centerton processor has a total of 30 GPIO pins. 954 Twenty-one are powered by the core power rail and 9 from the 955 suspend power supply. 956 957 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 958 power well and 6 from the suspend power well. 959 960config GPIO_SCH311X 961 tristate "SMSC SCH311x SuperI/O GPIO" 962 help 963 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 964 SCH3116 "Super I/O" chipsets. 965 966 To compile this driver as a module, choose M here: the module will 967 be called gpio-sch311x. 968 969config GPIO_TS5500 970 tristate "TS-5500 DIO blocks and compatibles" 971 depends on TS5500 || COMPILE_TEST 972 help 973 This driver supports Digital I/O exposed by pin blocks found on some 974 Technologic Systems platforms. It includes, but is not limited to, 3 975 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 976 LCD port. 977 978config GPIO_WINBOND 979 tristate "Winbond Super I/O GPIO support" 980 select ISA_BUS_API 981 help 982 This option enables support for GPIOs found on Winbond Super I/O 983 chips. 984 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 985 supported. 986 987 You will need to provide a module parameter "gpios", or a 988 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 989 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 990 991 To compile this driver as a module, choose M here: the module will 992 be called gpio-winbond. 993 994config GPIO_WS16C48 995 tristate "WinSystems WS16C48 GPIO support" 996 select ISA_BUS_API 997 select GPIOLIB_IRQCHIP 998 help 999 Enables GPIO support for the WinSystems WS16C48. The base port 1000 addresses for the devices may be configured via the base module 1001 parameter. The interrupt line numbers for the devices may be 1002 configured via the irq module parameter. 1003 1004endmenu 1005 1006menu "I2C GPIO expanders" 1007 depends on I2C 1008 1009config GPIO_ADNP 1010 tristate "Avionic Design N-bit GPIO expander" 1011 depends on OF_GPIO 1012 select GPIOLIB_IRQCHIP 1013 help 1014 This option enables support for N GPIOs found on Avionic Design 1015 I2C GPIO expanders. The register space will be extended by powers 1016 of two, so the controller will need to accommodate for that. For 1017 example: if a controller provides 48 pins, 6 registers will be 1018 enough to represent all pins, but the driver will assume a 1019 register layout for 64 pins (8 registers). 1020 1021config GPIO_FXL6408 1022 tristate "FXL6408 I2C GPIO expander" 1023 select GPIO_REGMAP 1024 select REGMAP_I2C 1025 help 1026 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. 1027 1028 To compile this driver as a module, choose M here: the module will 1029 be called gpio-fxl6408. 1030 1031config GPIO_GW_PLD 1032 tristate "Gateworks PLD GPIO Expander" 1033 depends on OF_GPIO 1034 help 1035 Say yes here to provide access to the Gateworks I2C PLD GPIO 1036 Expander. This is used at least on the Cambria GW2358-4. 1037 1038config GPIO_MAX7300 1039 tristate "Maxim MAX7300 GPIO expander" 1040 select GPIO_MAX730X 1041 help 1042 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1043 1044config GPIO_MAX732X 1045 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1046 help 1047 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1048 Port Expanders. Each IO port on these chips has a fixed role of 1049 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1050 Input and Output (designed by 'P'). The combinations are listed 1051 below: 1052 1053 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1054 max7322 (4I4O), max7323 (4P4O) 1055 1056 16 bits: max7324 (8I8O), max7325 (8P8O), 1057 max7326 (4I12O), max7327 (4P12O) 1058 1059 Board setup code must specify the model to use, and the start 1060 number for these GPIOs. 1061 1062config GPIO_MAX732X_IRQ 1063 bool "Interrupt controller support for MAX732x" 1064 depends on GPIO_MAX732X=y 1065 select GPIOLIB_IRQCHIP 1066 help 1067 Say yes here to enable the max732x to be used as an interrupt 1068 controller. It requires the driver to be built in the kernel. 1069 1070config GPIO_PCA953X 1071 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1072 select REGMAP_I2C 1073 help 1074 Say yes here to provide access to several register-oriented 1075 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1076 models include: 1077 1078 4 bits: pca9536, pca9537 1079 1080 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1081 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1082 1083 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1084 tca6416 1085 1086 24 bits: tca6424 1087 1088 40 bits: pca9505, pca9698 1089 1090config GPIO_PCA953X_IRQ 1091 bool "Interrupt controller support for PCA953x" 1092 depends on GPIO_PCA953X 1093 select GPIOLIB_IRQCHIP 1094 help 1095 Say yes here to enable the pca953x to be used as an interrupt 1096 controller. 1097 1098config GPIO_PCA9570 1099 tristate "PCA9570 4-Bit I2C GPO expander" 1100 help 1101 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1102 1103 To compile this driver as a module, choose M here: the module will 1104 be called gpio-pca9570. 1105 1106config GPIO_PCF857X 1107 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1108 select GPIOLIB_IRQCHIP 1109 select IRQ_DOMAIN 1110 help 1111 Say yes here to provide access to most "quasi-bidirectional" I2C 1112 GPIO expanders used for additional digital outputs or inputs. 1113 Most of these parts are from NXP, though TI is a second source for 1114 some of them. Compatible models include: 1115 1116 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1117 pca9670, pca9672, pca9674, pca9674a, 1118 max7328, max7329 1119 1120 16 bits: pcf8575, pcf8575c, pca8575, 1121 pca9671, pca9673, pca9675 1122 1123 Your board setup code will need to declare the expanders in 1124 use, and assign numbers to the GPIOs they expose. Those GPIOs 1125 can then be used from drivers and other kernel code, just like 1126 other GPIOs, but only accessible from task contexts. 1127 1128 This driver provides an in-kernel interface to those GPIOs using 1129 platform-neutral GPIO calls. 1130 1131config GPIO_TPIC2810 1132 tristate "TPIC2810 8-Bit I2C GPO expander" 1133 help 1134 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1135 1136 To compile this driver as a module, choose M here: the module will 1137 be called gpio-tpic2810. 1138 1139config GPIO_TS4900 1140 tristate "Technologic Systems FPGA I2C GPIO" 1141 depends on SOC_IMX6 || COMPILE_TEST 1142 select REGMAP_I2C 1143 help 1144 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1145 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1146 1147endmenu 1148 1149menu "MFD GPIO expanders" 1150 1151config GPIO_ADP5520 1152 tristate "GPIO Support for ADP5520 PMIC" 1153 depends on PMIC_ADP5520 1154 help 1155 This option enables support for on-chip GPIO found 1156 on Analog Devices ADP5520 PMICs. 1157 1158config GPIO_ALTERA_A10SR 1159 tristate "Altera Arria10 System Resource GPIO" 1160 depends on MFD_ALTERA_A10SR 1161 help 1162 Driver for Arria10 Development Kit GPIO expansion which 1163 includes reads of pushbuttons and DIP switches as well 1164 as writes to LEDs. 1165 1166config GPIO_ARIZONA 1167 tristate "Wolfson Microelectronics Arizona class devices" 1168 depends on MFD_ARIZONA 1169 help 1170 Support for GPIOs on Wolfson Arizona class devices. 1171 1172config GPIO_BD71815 1173 tristate "ROHM BD71815 PMIC GPIO support" 1174 depends on MFD_ROHM_BD71828 1175 help 1176 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1177 available on the ROHM PMIC. 1178 1179 This driver can also be built as a module. If so, the module 1180 will be called gpio-bd71815. 1181 1182config GPIO_BD71828 1183 tristate "ROHM BD71828 GPIO support" 1184 depends on MFD_ROHM_BD71828 1185 help 1186 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1187 available on the ROHM PMIC in total. The GPIOs are limited to 1188 outputs only and pins must be configured to GPIO outputs by 1189 OTP. Enable this only if you want to use these pins as outputs. 1190 1191 This driver can also be built as a module. If so, the module 1192 will be called gpio-bd71828. 1193 1194config GPIO_BD9571MWV 1195 tristate "ROHM BD9571 GPIO support" 1196 depends on MFD_BD9571MWV 1197 help 1198 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1199 available on the ROHM PMIC in total, both of which can also 1200 generate interrupts. 1201 1202 This driver can also be built as a module. If so, the module 1203 will be called gpio-bd9571mwv. 1204 1205config GPIO_CRYSTAL_COVE 1206 tristate "GPIO support for Crystal Cove PMIC" 1207 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1208 select GPIOLIB_IRQCHIP 1209 help 1210 Support for GPIO pins on Crystal Cove PMIC. 1211 1212 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1213 inside. 1214 1215 This driver can also be built as a module. If so, the module will be 1216 called gpio-crystalcove. 1217 1218config GPIO_CS5535 1219 tristate "AMD CS5535/CS5536 GPIO support" 1220 depends on X86 || MIPS || COMPILE_TEST 1221 depends on MFD_CS5535 1222 help 1223 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1224 can be used for quite a number of things. The CS5535/6 is found on 1225 AMD Geode and Lemote Yeeloong devices. 1226 1227 If unsure, say N. 1228 1229config GPIO_DA9052 1230 tristate "Dialog DA9052 GPIO" 1231 depends on PMIC_DA9052 1232 help 1233 Say yes here to enable the GPIO driver for the DA9052 chip. 1234 1235config GPIO_DA9055 1236 tristate "Dialog Semiconductor DA9055 GPIO" 1237 depends on MFD_DA9055 1238 help 1239 Say yes here to enable the GPIO driver for the DA9055 chip. 1240 1241 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1242 be controlled by this driver. 1243 1244 If driver is built as a module it will be called gpio-da9055. 1245 1246config GPIO_DLN2 1247 tristate "Diolan DLN2 GPIO support" 1248 depends on MFD_DLN2 1249 select GPIOLIB_IRQCHIP 1250 1251 help 1252 Select this option to enable GPIO driver for the Diolan DLN2 1253 board. 1254 1255 This driver can also be built as a module. If so, the module 1256 will be called gpio-dln2. 1257 1258config HTC_EGPIO 1259 bool "HTC EGPIO support" 1260 depends on ARM 1261 help 1262 This driver supports the CPLD egpio chip present on 1263 several HTC phones. It provides basic support for input 1264 pins, output pins, and IRQs. 1265 1266config GPIO_ELKHARTLAKE 1267 tristate "Intel Elkhart Lake PSE GPIO support" 1268 depends on X86 || COMPILE_TEST 1269 select GPIO_TANGIER 1270 help 1271 Select this option to enable GPIO support for Intel Elkhart Lake 1272 PSE GPIO IP. 1273 1274 To compile this driver as a module, choose M here: the module will 1275 be called gpio-elkhartlake. 1276 1277config GPIO_JANZ_TTL 1278 tristate "Janz VMOD-TTL Digital IO Module" 1279 depends on MFD_JANZ_CMODIO 1280 help 1281 This enables support for the Janz VMOD-TTL Digital IO module. 1282 This driver provides support for driving the pins in output 1283 mode only. Input mode is not supported. 1284 1285config GPIO_KEMPLD 1286 tristate "Kontron ETX / COMexpress GPIO" 1287 depends on MFD_KEMPLD 1288 help 1289 This enables support for the PLD GPIO interface on some Kontron ETX 1290 and COMexpress (ETXexpress) modules. 1291 1292 This driver can also be built as a module. If so, the module will be 1293 called gpio-kempld. 1294 1295config GPIO_LJCA 1296 tristate "INTEL La Jolla Cove Adapter GPIO support" 1297 depends on MFD_LJCA 1298 select GPIOLIB_IRQCHIP 1299 default MFD_LJCA 1300 help 1301 Select this option to enable GPIO driver for the INTEL 1302 La Jolla Cove Adapter (LJCA) board. 1303 1304 This driver can also be built as a module. If so, the module 1305 will be called gpio-ljca. 1306 1307config GPIO_LP3943 1308 tristate "TI/National Semiconductor LP3943 GPIO expander" 1309 depends on MFD_LP3943 1310 help 1311 GPIO driver for LP3943 MFD. 1312 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1313 Open drain outputs are required for this usage. 1314 1315config GPIO_LP873X 1316 tristate "TI LP873X GPO" 1317 depends on MFD_TI_LP873X 1318 help 1319 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1320 on LP873X PMICs. 1321 1322 This driver can also be built as a module. If so, the module will be 1323 called gpio-lp873x. 1324 1325config GPIO_LP87565 1326 tristate "TI LP87565 GPIO" 1327 depends on MFD_TI_LP87565 1328 help 1329 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1330 on LP87565 PMICs. 1331 1332 This driver can also be built as a module. If so, the module will be 1333 called gpio-lp87565. 1334 1335config GPIO_MADERA 1336 tristate "Cirrus Logic Madera class codecs" 1337 depends on PINCTRL_MADERA 1338 help 1339 Support for GPIOs on Cirrus Logic Madera class codecs. 1340 1341config GPIO_MAX77620 1342 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1343 depends on MFD_MAX77620 1344 select GPIOLIB_IRQCHIP 1345 help 1346 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1347 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1348 driver also provides interrupt support for each of the GPIOs. 1349 Say yes here to enable the max77620 to be used as GPIO controller. 1350 1351config GPIO_MAX77650 1352 tristate "Maxim MAX77650/77651 GPIO support" 1353 depends on MFD_MAX77650 1354 help 1355 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1356 These chips have a single pin that can be configured as GPIO. 1357 1358config GPIO_PALMAS 1359 bool "TI PALMAS series PMICs GPIO" 1360 depends on MFD_PALMAS 1361 help 1362 Select this option to enable GPIO driver for the TI PALMAS 1363 series chip family. 1364 1365config GPIO_PMIC_EIC_SPRD 1366 tristate "Spreadtrum PMIC EIC support" 1367 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1368 depends on OF_GPIO 1369 select GPIOLIB_IRQCHIP 1370 help 1371 Say yes here to support Spreadtrum PMIC EIC device. 1372 1373config GPIO_RC5T583 1374 bool "RICOH RC5T583 GPIO" 1375 depends on MFD_RC5T583 1376 help 1377 Select this option to enable GPIO driver for the Ricoh RC5T583 1378 chip family. 1379 This driver provides the support for driving/reading the GPIO pins 1380 of RC5T583 device through standard GPIO library. 1381 1382config GPIO_SL28CPLD 1383 tristate "Kontron sl28cpld GPIO support" 1384 depends on MFD_SL28CPLD || COMPILE_TEST 1385 select GPIO_REGMAP 1386 select GPIOLIB_IRQCHIP 1387 select REGMAP_IRQ 1388 help 1389 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1390 1391 This driver can also be built as a module. If so, the module will be 1392 called gpio-sl28cpld. 1393 1394config GPIO_STMPE 1395 bool "STMPE GPIOs" 1396 depends on MFD_STMPE 1397 depends on OF_GPIO 1398 select GPIOLIB_IRQCHIP 1399 help 1400 This enables support for the GPIOs found on the STMPE I/O 1401 Expanders. 1402 1403config GPIO_TC3589X 1404 bool "TC3589X GPIOs" 1405 depends on MFD_TC3589X 1406 depends on OF_GPIO 1407 select GPIOLIB_IRQCHIP 1408 help 1409 This enables support for the GPIOs found on the TC3589X 1410 I/O Expander. 1411 1412config GPIO_TIMBERDALE 1413 bool "Support for timberdale GPIO IP" 1414 depends on MFD_TIMBERDALE 1415 help 1416 Add support for the GPIO IP in the timberdale FPGA. 1417 1418config GPIO_TN48M_CPLD 1419 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1420 depends on MFD_TN48M_CPLD 1421 select GPIO_REGMAP 1422 help 1423 This enables support for the GPIOs found on the Delta 1424 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1425 they are input-only or output-only type. 1426 1427 This driver can also be built as a module. If so, the 1428 module will be called gpio-tn48m. 1429 1430config GPIO_TPS65086 1431 tristate "TI TPS65086 GPO" 1432 depends on MFD_TPS65086 1433 help 1434 This driver supports the GPO on TI TPS65086x PMICs. 1435 1436config GPIO_TPS65218 1437 tristate "TPS65218 GPIO" 1438 depends on MFD_TPS65218 1439 help 1440 Select this option to enable GPIO driver for the TPS65218 1441 chip family. 1442 1443config GPIO_TPS6586X 1444 bool "TPS6586X GPIO" 1445 depends on MFD_TPS6586X 1446 help 1447 Select this option to enable GPIO driver for the TPS6586X 1448 chip family. 1449 1450config GPIO_TPS65910 1451 bool "TPS65910 GPIO" 1452 depends on MFD_TPS65910 1453 help 1454 Select this option to enable GPIO driver for the TPS65910 1455 chip family. 1456 1457config GPIO_TPS65912 1458 tristate "TI TPS65912 GPIO" 1459 depends on MFD_TPS65912 1460 help 1461 This driver supports TPS65912 GPIO chip. 1462 1463config GPIO_TPS68470 1464 tristate "TPS68470 GPIO" 1465 depends on INTEL_SKL_INT3472 1466 help 1467 Select this option to enable GPIO driver for the TPS68470 1468 chip family. 1469 There are 7 GPIOs and few sensor-related GPIOs supported 1470 by the TPS68470. While the 7 GPIOs can be configured as 1471 input or output as appropriate, the sensor related GPIOs 1472 are "output only" GPIOs. 1473 1474config GPIO_TQMX86 1475 tristate "TQ-Systems QTMX86 GPIO" 1476 depends on MFD_TQMX86 || COMPILE_TEST 1477 depends on HAS_IOPORT_MAP 1478 select GPIOLIB_IRQCHIP 1479 help 1480 This driver supports GPIO on the TQMX86 IO controller. 1481 1482config GPIO_TWL4030 1483 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1484 depends on TWL4030_CORE 1485 help 1486 Say yes here to access the GPIO signals of various multi-function 1487 power management chips from Texas Instruments. 1488 1489config GPIO_TWL6040 1490 tristate "TWL6040 GPO" 1491 depends on TWL6040_CORE 1492 help 1493 Say yes here to access the GPO signals of twl6040 1494 audio chip from Texas Instruments. 1495 1496config GPIO_WHISKEY_COVE 1497 tristate "GPIO support for Whiskey Cove PMIC" 1498 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1499 select GPIOLIB_IRQCHIP 1500 help 1501 Support for GPIO pins on Whiskey Cove PMIC. 1502 1503 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1504 inside. 1505 1506 This driver can also be built as a module. If so, the module will be 1507 called gpio-wcove. 1508 1509config GPIO_WM831X 1510 tristate "WM831x GPIOs" 1511 depends on MFD_WM831X 1512 help 1513 Say yes here to access the GPIO signals of WM831x power management 1514 chips from Wolfson Microelectronics. 1515 1516config GPIO_WM8350 1517 tristate "WM8350 GPIOs" 1518 depends on MFD_WM8350 1519 help 1520 Say yes here to access the GPIO signals of WM8350 power management 1521 chips from Wolfson Microelectronics. 1522 1523config GPIO_WM8994 1524 tristate "WM8994 GPIOs" 1525 depends on MFD_WM8994 1526 help 1527 Say yes here to access the GPIO signals of WM8994 audio hub 1528 CODECs from Wolfson Microelectronics. 1529 1530endmenu 1531 1532menu "PCI GPIO expanders" 1533 depends on PCI 1534 1535config GPIO_AMD8111 1536 tristate "AMD 8111 GPIO driver" 1537 depends on X86 || COMPILE_TEST 1538 depends on HAS_IOPORT_MAP 1539 help 1540 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1541 1542 Note that usually system firmware/ACPI handles GPIO pins on their 1543 own and users might easily break their systems with uncareful usage 1544 of this driver! 1545 1546 If unsure, say N 1547 1548config GPIO_BT8XX 1549 tristate "BT8XX GPIO abuser" 1550 depends on VIDEO_BT848=n 1551 help 1552 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1553 as a cheap PCI GPIO card. 1554 1555 This chip can be found on Miro, Hauppauge and STB TV-cards. 1556 1557 The card needs to be physically altered for using it as a 1558 GPIO card. For more information on how to build a GPIO card 1559 from a BT8xx TV card, see the documentation file at 1560 Documentation/driver-api/gpio/bt8xxgpio.rst 1561 1562 If unsure, say N. 1563 1564config GPIO_MERRIFIELD 1565 tristate "Intel Merrifield GPIO support" 1566 depends on X86_INTEL_MID 1567 select GPIO_TANGIER 1568 help 1569 Say Y here to support Intel Merrifield GPIO. 1570 1571config GPIO_MLXBF 1572 tristate "Mellanox BlueField SoC GPIO" 1573 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1574 select GPIO_GENERIC 1575 help 1576 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1577 1578config GPIO_MLXBF2 1579 tristate "Mellanox BlueField 2 SoC GPIO" 1580 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1581 select GPIO_GENERIC 1582 select GPIOLIB_IRQCHIP 1583 help 1584 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1585 1586config GPIO_ML_IOH 1587 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1588 depends on X86 || COMPILE_TEST 1589 select GENERIC_IRQ_CHIP 1590 help 1591 ML7213 is companion chip for Intel Atom E6xx series. 1592 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1593 Hub) which is for IVI (In-Vehicle Infotainment) use. 1594 This driver can access the IOH's GPIO device. 1595 1596config GPIO_PCH 1597 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1598 depends on X86_32 || MIPS || COMPILE_TEST 1599 select GENERIC_IRQ_CHIP 1600 help 1601 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1602 which is an IOH (Input/Output Hub) for x86 embedded processor. 1603 This driver can access PCH GPIO device. 1604 1605 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1606 Output Hub), ML7223 and ML7831. 1607 ML7223 IOH is for MP (Media Phone) use. 1608 ML7831 IOH is for general purpose use. 1609 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1610 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1611 1612config GPIO_PCI_IDIO_16 1613 tristate "ACCES PCI-IDIO-16 GPIO support" 1614 select GPIOLIB_IRQCHIP 1615 select GPIO_IDIO_16 1616 help 1617 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1618 generated when any of the inputs change state (low to high or high to 1619 low). Input filter control is not supported by this driver, and the 1620 input filters are deactivated by this driver. 1621 1622config GPIO_PCIE_IDIO_24 1623 tristate "ACCES PCIe-IDIO-24 GPIO support" 1624 select GPIOLIB_IRQCHIP 1625 help 1626 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1627 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1628 when any of the inputs change state (low to high or high to low). 1629 Input filter control is not supported by this driver, and the input 1630 filters are deactivated by this driver. 1631 1632config GPIO_RDC321X 1633 tristate "RDC R-321x GPIO support" 1634 select MFD_CORE 1635 select MFD_RDC321X 1636 help 1637 Support for the RDC R321x SoC GPIOs over southbridge 1638 PCI configuration space. 1639 1640config GPIO_SODAVILLE 1641 bool "Intel Sodaville GPIO support" 1642 depends on X86 && OF 1643 select GPIO_GENERIC 1644 select GENERIC_IRQ_CHIP 1645 help 1646 Say Y here to support Intel Sodaville GPIO. 1647 1648endmenu 1649 1650menu "SPI GPIO expanders" 1651 depends on SPI_MASTER 1652 1653config GPIO_74X164 1654 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1655 depends on OF_GPIO 1656 help 1657 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1658 shift registers. This driver can be used to provide access 1659 to more GPIO outputs. 1660 1661config GPIO_MAX3191X 1662 tristate "Maxim MAX3191x industrial serializer" 1663 select CRC8 1664 help 1665 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1666 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1667 chip to make 8 digital 24V inputs available via SPI. Supports 1668 CRC checksums to guard against electromagnetic interference, 1669 as well as undervoltage and overtemperature detection. 1670 1671config GPIO_MAX7301 1672 tristate "Maxim MAX7301 GPIO expander" 1673 select GPIO_MAX730X 1674 help 1675 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1676 1677config GPIO_MC33880 1678 tristate "Freescale MC33880 high-side/low-side switch" 1679 help 1680 SPI driver for Freescale MC33880 high-side/low-side switch. 1681 This provides GPIO interface supporting inputs and outputs. 1682 1683config GPIO_PISOSR 1684 tristate "Generic parallel-in/serial-out shift register" 1685 help 1686 GPIO driver for SPI compatible parallel-in/serial-out shift 1687 registers. These are input only devices. 1688 1689config GPIO_XRA1403 1690 tristate "EXAR XRA1403 16-bit GPIO expander" 1691 select REGMAP_SPI 1692 help 1693 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1694 1695config GPIO_MOXTET 1696 tristate "Turris Mox Moxtet bus GPIO expander" 1697 depends on MOXTET 1698 help 1699 Say yes here if you are building for the Turris Mox router. 1700 This is the driver needed for configuring the GPIOs via the Moxtet 1701 bus. For example the Mox module with SFP cage needs this driver 1702 so that phylink can use corresponding GPIOs. 1703 1704endmenu 1705 1706menu "USB GPIO expanders" 1707 depends on USB 1708 1709config GPIO_VIPERBOARD 1710 tristate "Viperboard GPIO a & b support" 1711 depends on MFD_VIPERBOARD 1712 help 1713 Say yes here to access the GPIO signals of Nano River 1714 Technologies Viperboard. There are two GPIO chips on the 1715 board: gpioa and gpiob. 1716 See viperboard API specification and Nano 1717 River Tech's viperboard.h for detailed meaning 1718 of the module parameters. 1719 1720endmenu 1721 1722menu "Virtual GPIO drivers" 1723 1724config GPIO_AGGREGATOR 1725 tristate "GPIO Aggregator" 1726 help 1727 Say yes here to enable the GPIO Aggregator, which provides a way to 1728 aggregate existing GPIO lines into a new virtual GPIO chip. 1729 This can serve the following purposes: 1730 - Assign permissions for a collection of GPIO lines to a user, 1731 - Export a collection of GPIO lines to a virtual machine, 1732 - Provide a generic driver for a GPIO-operated device in an 1733 industrial control context, to be operated from userspace using 1734 the GPIO chardev interface. 1735 1736config GPIO_LATCH 1737 tristate "GPIO latch driver" 1738 help 1739 Say yes here to enable a driver for GPIO multiplexers based on latches 1740 connected to other GPIOs. 1741 1742config GPIO_MOCKUP 1743 tristate "GPIO Testing Driver" 1744 select IRQ_SIM 1745 help 1746 This enables GPIO Testing driver, which provides a way to test GPIO 1747 subsystem through sysfs (or char device) and debugfs. 1748 User could use it through the script in 1749 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1750 it. 1751 1752config GPIO_VIRTIO 1753 tristate "VirtIO GPIO support" 1754 depends on VIRTIO 1755 select GPIOLIB_IRQCHIP 1756 help 1757 Say Y here to enable guest support for virtio-based GPIO controllers. 1758 1759 These virtual GPIOs can be routed to real GPIOs or attached to 1760 simulators on the host (like QEMU). 1761 1762config GPIO_SIM 1763 tristate "GPIO Simulator Module" 1764 select IRQ_SIM 1765 select CONFIGFS_FS 1766 help 1767 This enables the GPIO simulator - a configfs-based GPIO testing 1768 driver. 1769 1770endmenu 1771 1772endif 1773