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 select REGMAP_IRQ 115 select GPIOLIB_IRQCHIP 116 select GPIO_REGMAP 117 help 118 Enables support for the idio-16 library functions. The idio-16 library 119 provides functions to facilitate communication with devices within the 120 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16. 121 122 If built as a module its name will be gpio-idio-16. 123 124menu "Memory mapped GPIO drivers" 125 depends on HAS_IOMEM 126 127config GPIO_74XX_MMIO 128 tristate "GPIO driver for 74xx-ICs with MMIO access" 129 depends on OF_GPIO 130 select GPIO_GENERIC 131 help 132 Say yes here to support GPIO functionality for 74xx-compatible ICs 133 with MMIO access. Compatible models include: 134 1 bit: 741G125 (Input), 741G74 (Output) 135 2 bits: 742G125 (Input), 7474 (Output) 136 4 bits: 74125 (Input), 74175 (Output) 137 6 bits: 74365 (Input), 74174 (Output) 138 8 bits: 74244 (Input), 74273 (Output) 139 16 bits: 741624 (Input), 7416374 (Output) 140 141config GPIO_ALTERA 142 tristate "Altera GPIO" 143 depends on OF_GPIO 144 select GPIOLIB_IRQCHIP 145 select OF_GPIO_MM_GPIOCHIP 146 help 147 Say Y or M here to build support for the Altera PIO device. 148 149 If driver is built as a module it will be called gpio-altera. 150 151config GPIO_AMDPT 152 tristate "AMD Promontory GPIO support" 153 depends on ACPI 154 select GPIO_GENERIC 155 help 156 Driver for GPIO functionality on Promontory IOHub. 157 Requires ACPI ASL code to enumerate as a platform device. 158 159config GPIO_ASPEED 160 tristate "Aspeed GPIO support" 161 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 162 select GPIOLIB_IRQCHIP 163 help 164 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 165 166config GPIO_ASPEED_SGPIO 167 bool "Aspeed SGPIO support" 168 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 169 select GPIO_GENERIC 170 select GPIOLIB_IRQCHIP 171 help 172 Say Y here to support Aspeed AST2500 SGPIO functionality. 173 174config GPIO_ATH79 175 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 176 default y if ATH79 177 depends on ATH79 || COMPILE_TEST 178 select GPIO_GENERIC 179 select GPIOLIB_IRQCHIP 180 help 181 Select this option to enable GPIO driver for 182 Atheros AR71XX/AR724X/AR913X SoC devices. 183 184config GPIO_RASPBERRYPI_EXP 185 tristate "Raspberry Pi 3 GPIO Expander" 186 default RASPBERRYPI_FIRMWARE 187 depends on OF_GPIO 188 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 189 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 190 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 191 help 192 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 193 the firmware mailbox to communicate with VideoCore on BCM283x chips. 194 195config GPIO_BCM_KONA 196 bool "Broadcom Kona GPIO" 197 depends on ARCH_BCM_MOBILE || COMPILE_TEST 198 help 199 Turn on GPIO support for Broadcom "Kona" chips. 200 201config GPIO_BCM_XGS_IPROC 202 tristate "BRCM XGS iProc GPIO support" 203 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 204 select GPIO_GENERIC 205 select GPIOLIB_IRQCHIP 206 default ARCH_BCM_IPROC 207 help 208 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 209 210config GPIO_BRCMSTB 211 tristate "BRCMSTB GPIO support" 212 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 213 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 214 select GPIO_GENERIC 215 select IRQ_DOMAIN 216 help 217 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 218 219config GPIO_CADENCE 220 tristate "Cadence GPIO support" 221 depends on OF_GPIO 222 select GPIO_GENERIC 223 select GPIOLIB_IRQCHIP 224 help 225 Say yes here to enable support for Cadence GPIO controller. 226 227config GPIO_CLPS711X 228 tristate "CLPS711X GPIO support" 229 depends on ARCH_CLPS711X || COMPILE_TEST 230 select GPIO_GENERIC 231 help 232 Say yes here to support GPIO on CLPS711X SoCs. 233 234config GPIO_DAVINCI 235 tristate "TI Davinci/Keystone GPIO support" 236 default y if ARCH_DAVINCI 237 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 238 help 239 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 240 241config GPIO_DWAPB 242 tristate "Synopsys DesignWare APB GPIO driver" 243 select GPIO_GENERIC 244 select GPIOLIB_IRQCHIP 245 help 246 Say Y or M here to build support for the Synopsys DesignWare APB 247 GPIO block. 248 249config GPIO_EIC_SPRD 250 tristate "Spreadtrum EIC support" 251 depends on ARCH_SPRD || COMPILE_TEST 252 depends on OF_GPIO 253 select GPIOLIB_IRQCHIP 254 help 255 Say yes here to support Spreadtrum EIC device. 256 257config GPIO_EM 258 tristate "Emma Mobile GPIO" 259 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 260 help 261 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 262 263config GPIO_EN7523 264 tristate "Airoha GPIO support" 265 depends on ARCH_AIROHA 266 default ARCH_AIROHA 267 select GPIO_GENERIC 268 select GPIOLIB_IRQCHIP 269 help 270 Say Y or M here to support the GPIO controller block on the 271 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 272 273config GPIO_EP93XX 274 def_bool y 275 depends on ARCH_EP93XX 276 select GPIO_GENERIC 277 select GPIOLIB_IRQCHIP 278 279config GPIO_EXAR 280 tristate "Support for GPIO pins on XR17V352/354/358" 281 depends on SERIAL_8250_EXAR 282 select REGMAP_MMIO 283 help 284 Selecting this option will enable handling of GPIO pins present 285 on Exar XR17V352/354/358 chips. 286 287config GPIO_GE_FPGA 288 bool "GE FPGA based GPIO" 289 depends on GE_FPGA || COMPILE_TEST 290 select GPIO_GENERIC 291 help 292 Support for common GPIO functionality provided on some GE Single Board 293 Computers. 294 295 This driver provides basic support (configure as input or output, read 296 and write pin state) for GPIO implemented in a number of GE single 297 board computers. 298 299config GPIO_FTGPIO010 300 bool "Faraday FTGPIO010 GPIO" 301 depends on OF_GPIO 302 select GPIO_GENERIC 303 select GPIOLIB_IRQCHIP 304 default (ARCH_GEMINI || ARCH_MOXART) 305 help 306 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 307 Cortina systems Gemini platforms, Moxa ART and others. 308 309config GPIO_GENERIC_PLATFORM 310 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 311 select GPIO_GENERIC 312 help 313 Say yes here to support basic platform_device memory-mapped GPIO controllers. 314 315config GPIO_GRGPIO 316 tristate "Aeroflex Gaisler GRGPIO support" 317 depends on OF_GPIO 318 select GPIO_GENERIC 319 select IRQ_DOMAIN 320 help 321 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 322 VHDL IP core library. 323 324config GPIO_HISI 325 tristate "HiSilicon GPIO controller driver" 326 depends on ARM64 || COMPILE_TEST 327 select GPIO_GENERIC 328 select GPIOLIB_IRQCHIP 329 help 330 Say Y or M here to build support for the HiSilicon GPIO controller 331 driver GPIO block. 332 This GPIO controller supports double-edge interrupt and multi-core 333 concurrent access. 334 335config GPIO_HLWD 336 tristate "Nintendo Wii (Hollywood) GPIO" 337 depends on OF_GPIO 338 select GPIO_GENERIC 339 select GPIOLIB_IRQCHIP 340 help 341 Select this to support the GPIO controller of the Nintendo Wii. 342 343 If unsure, say N. 344 345config GPIO_ICH 346 tristate "Intel ICH GPIO" 347 depends on X86 348 depends on LPC_ICH 349 help 350 Say yes here to support the GPIO functionality of a number of Intel 351 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 352 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 353 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 354 355 If unsure, say N. 356 357config GPIO_IMX_SCU 358 def_bool y 359 depends on IMX_SCU 360 361config GPIO_IXP4XX 362 bool "Intel IXP4xx GPIO" 363 depends on ARCH_IXP4XX 364 depends on OF 365 select GPIO_GENERIC 366 select GPIOLIB_IRQCHIP 367 select IRQ_DOMAIN_HIERARCHY 368 help 369 Say yes here to support the GPIO functionality of a number of Intel 370 IXP4xx series of chips. 371 372 If unsure, say N. 373 374config GPIO_LOGICVC 375 tristate "Xylon LogiCVC GPIO support" 376 depends on MFD_SYSCON && OF 377 help 378 Say yes here to support GPIO functionality of the Xylon LogiCVC 379 programmable logic block. 380 381config GPIO_LOONGSON 382 bool "Loongson-2/3 GPIO support" 383 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 384 help 385 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 386 387config GPIO_LOONGSON_64BIT 388 tristate "Loongson 64 bit GPIO support" 389 depends on LOONGARCH || COMPILE_TEST 390 depends on OF_GPIO 391 select GPIO_GENERIC 392 help 393 Say yes here to support the GPIO functionality of a number of 394 Loongson series of chips. The Loongson GPIO controller supports 395 up to 60 GPIOS in total, 4 of which are dedicated GPIO pins, and 396 the remaining 56 are reused with other functions, with edge or 397 level triggered interrupts. 398 399config GPIO_LPC18XX 400 tristate "NXP LPC18XX/43XX GPIO support" 401 default y if ARCH_LPC18XX 402 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 403 select IRQ_DOMAIN_HIERARCHY 404 help 405 Select this option to enable GPIO driver for 406 NXP LPC18XX/43XX devices. 407 408config GPIO_LPC32XX 409 tristate "NXP LPC32XX GPIO support" 410 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 411 help 412 Select this option to enable GPIO driver for 413 NXP LPC32XX devices. 414 415config GPIO_MB86S7X 416 tristate "GPIO support for Fujitsu MB86S7x Platforms" 417 help 418 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 419 420config GPIO_MENZ127 421 tristate "MEN 16Z127 GPIO support" 422 depends on MCB 423 select GPIO_GENERIC 424 help 425 Say yes here to support the MEN 16Z127 GPIO Controller. 426 427config GPIO_MM_LANTIQ 428 bool "Lantiq Memory mapped GPIOs" 429 depends on LANTIQ && SOC_XWAY 430 select OF_GPIO_MM_GPIOCHIP 431 help 432 This enables support for memory mapped GPIOs on the External Bus Unit 433 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 434 created by attaching a 16-bit latch to the bus. 435 436config GPIO_MPC5200 437 def_bool y 438 depends on PPC_MPC52xx 439 select OF_GPIO_MM_GPIOCHIP 440 441config GPIO_MPC8XXX 442 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 443 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 444 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 445 COMPILE_TEST 446 select GPIO_GENERIC 447 select IRQ_DOMAIN 448 help 449 Say Y here if you're going to use hardware that connects to the 450 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 451 452config GPIO_MT7621 453 bool "Mediatek MT7621 GPIO Support" 454 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 455 depends on OF_GPIO 456 select GPIO_GENERIC 457 select GPIOLIB_IRQCHIP 458 help 459 Say yes here to support the Mediatek MT7621 SoC GPIO device. 460 461config GPIO_MVEBU 462 def_bool y 463 depends on PLAT_ORION || ARCH_MVEBU 464 depends on OF_GPIO 465 select GENERIC_IRQ_CHIP 466 select REGMAP_MMIO 467 468config GPIO_MXC 469 tristate "i.MX GPIO support" 470 depends on ARCH_MXC || COMPILE_TEST 471 select GPIO_GENERIC 472 select GENERIC_IRQ_CHIP 473 474config GPIO_MXS 475 bool "Freescale MXS GPIO support" if COMPILE_TEST 476 depends on ARCH_MXS || COMPILE_TEST 477 default y if ARCH_MXS 478 select GPIO_GENERIC 479 select GENERIC_IRQ_CHIP 480 481config GPIO_OCTEON 482 tristate "Cavium OCTEON GPIO" 483 depends on CAVIUM_OCTEON_SOC 484 default y 485 help 486 Say yes here to support the on-chip GPIO lines on the OCTEON 487 family of SOCs. 488 489config GPIO_OMAP 490 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 491 default y if ARCH_OMAP 492 depends on ARM 493 select GENERIC_IRQ_CHIP 494 select GPIOLIB_IRQCHIP 495 help 496 Say yes here to enable GPIO support for TI OMAP SoCs. 497 498config GPIO_PL061 499 tristate "PrimeCell PL061 GPIO support" 500 depends on ARM_AMBA 501 select IRQ_DOMAIN 502 select GPIOLIB_IRQCHIP 503 help 504 Say yes here to support the PrimeCell PL061 GPIO device. 505 506config GPIO_PXA 507 bool "PXA GPIO support" 508 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 509 help 510 Say yes here to support the PXA GPIO device. 511 512config GPIO_RCAR 513 tristate "Renesas R-Car and RZ/G GPIO support" 514 depends on ARCH_RENESAS || COMPILE_TEST 515 select GPIOLIB_IRQCHIP 516 help 517 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 518 519config GPIO_RDA 520 bool "RDA Micro GPIO controller support" 521 depends on ARCH_RDA || COMPILE_TEST 522 depends on OF_GPIO 523 select GPIO_GENERIC 524 select GPIOLIB_IRQCHIP 525 help 526 Say Y here to support RDA Micro GPIO controller. 527 528config GPIO_REALTEK_OTTO 529 tristate "Realtek Otto GPIO support" 530 depends on MACH_REALTEK_RTL 531 default MACH_REALTEK_RTL 532 select GPIO_GENERIC 533 select GPIOLIB_IRQCHIP 534 help 535 The GPIO controller on the Otto MIPS platform supports up to two 536 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 537 are grouped in four 8-bit wide ports. 538 539 When built as a module, the module will be called realtek_otto_gpio. 540 541config GPIO_REG 542 bool 543 help 544 A 32-bit single register GPIO fixed in/out implementation. This 545 can be used to represent any register as a set of GPIO signals. 546 547config GPIO_ROCKCHIP 548 tristate "Rockchip GPIO support" 549 depends on ARCH_ROCKCHIP || COMPILE_TEST 550 select GENERIC_IRQ_CHIP 551 select GPIOLIB_IRQCHIP 552 default ARCH_ROCKCHIP 553 help 554 Say yes here to support GPIO on Rockchip SoCs. 555 556config GPIO_SAMA5D2_PIOBU 557 tristate "SAMA5D2 PIOBU GPIO support" 558 depends on MFD_SYSCON 559 depends on OF_GPIO 560 depends on ARCH_AT91 || COMPILE_TEST 561 select GPIO_SYSCON 562 help 563 Say yes here to use the PIOBU pins as GPIOs. 564 565 PIOBU pins on the SAMA5D2 can be used as GPIOs. 566 The difference from regular GPIOs is that they 567 maintain their value during backup/self-refresh. 568 569config GPIO_SIFIVE 570 tristate "SiFive GPIO support" 571 depends on OF_GPIO 572 select IRQ_DOMAIN_HIERARCHY 573 select GPIO_GENERIC 574 select GPIOLIB_IRQCHIP 575 select REGMAP_MMIO 576 help 577 Say yes here to support the GPIO device on SiFive SoCs. 578 579config GPIO_SIOX 580 tristate "SIOX GPIO support" 581 depends on SIOX 582 select GPIOLIB_IRQCHIP 583 help 584 Say yes here to support SIOX I/O devices. These are units connected 585 via a SIOX bus and have a number of fixed-direction I/O lines. 586 587config GPIO_SNPS_CREG 588 bool "Synopsys GPIO via CREG (Control REGisters) driver" 589 depends on ARC || COMPILE_TEST 590 depends on OF_GPIO 591 help 592 This driver supports GPIOs via CREG on various Synopsys SoCs. 593 This is a single-register MMIO GPIO driver for complex cases 594 where only several fields in register belong to GPIO lines and 595 each GPIO line owns a field with different length and on/off value. 596 597config GPIO_SPEAR_SPICS 598 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 599 depends on PLAT_SPEAR 600 select GENERIC_IRQ_CHIP 601 help 602 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 603 604config GPIO_SPRD 605 tristate "Spreadtrum GPIO support" 606 depends on ARCH_SPRD || COMPILE_TEST 607 depends on OF_GPIO 608 select GPIOLIB_IRQCHIP 609 help 610 Say yes here to support Spreadtrum GPIO device. 611 612config GPIO_STP_XWAY 613 bool "XWAY STP GPIOs" 614 depends on SOC_XWAY || COMPILE_TEST 615 depends on OF_GPIO 616 help 617 This enables support for the Serial To Parallel (STP) unit found on 618 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 619 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 620 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 621 phy status. 622 623config GPIO_SYSCON 624 tristate "GPIO based on SYSCON" 625 depends on MFD_SYSCON && OF 626 help 627 Say yes here to support GPIO functionality though SYSCON driver. 628 629config GPIO_TANGIER 630 tristate 631 select GPIOLIB_IRQCHIP 632 help 633 GPIO support for Intel Tangier and compatible platforms. 634 Currently supported: 635 - Elkhart Lake 636 - Merrifield 637 638 If built as a module its name will be gpio-tangier. 639 640config GPIO_TB10X 641 bool 642 select GPIO_GENERIC 643 select GENERIC_IRQ_CHIP 644 select OF_GPIO 645 646config GPIO_TEGRA 647 tristate "NVIDIA Tegra GPIO support" 648 default ARCH_TEGRA 649 depends on ARCH_TEGRA || COMPILE_TEST 650 depends on OF_GPIO 651 select GPIOLIB_IRQCHIP 652 select IRQ_DOMAIN_HIERARCHY 653 help 654 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 655 656config GPIO_TEGRA186 657 tristate "NVIDIA Tegra186 GPIO support" 658 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 659 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 660 depends on OF_GPIO 661 select GPIOLIB_IRQCHIP 662 select IRQ_DOMAIN_HIERARCHY 663 help 664 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 665 666config GPIO_TS4800 667 tristate "TS-4800 DIO blocks and compatibles" 668 depends on OF_GPIO 669 depends on SOC_IMX51 || COMPILE_TEST 670 select GPIO_GENERIC 671 help 672 This driver support TS-4800 FPGA GPIO controllers. 673 674config GPIO_THUNDERX 675 tristate "Cavium ThunderX/OCTEON-TX GPIO" 676 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 677 depends on PCI_MSI 678 select GPIOLIB_IRQCHIP 679 select IRQ_DOMAIN_HIERARCHY 680 select IRQ_FASTEOI_HIERARCHY_HANDLERS 681 help 682 Say yes here to support the on-chip GPIO lines on the ThunderX 683 and OCTEON-TX families of SoCs. 684 685config GPIO_UNIPHIER 686 tristate "UniPhier GPIO support" 687 depends on ARCH_UNIPHIER || COMPILE_TEST 688 depends on OF_GPIO 689 select IRQ_DOMAIN_HIERARCHY 690 help 691 Say yes here to support UniPhier GPIOs. 692 693config GPIO_VF610 694 def_bool y 695 depends on ARCH_MXC 696 select GPIOLIB_IRQCHIP 697 help 698 Say yes here to support i.MX or Vybrid vf610 GPIOs. 699 700config GPIO_VISCONTI 701 tristate "Toshiba Visconti GPIO support" 702 depends on ARCH_VISCONTI || COMPILE_TEST 703 depends on OF_GPIO 704 select GPIOLIB_IRQCHIP 705 select GPIO_GENERIC 706 select IRQ_DOMAIN_HIERARCHY 707 help 708 Say yes here to support GPIO on Tohisba Visconti. 709 710config GPIO_WCD934X 711 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 712 depends on MFD_WCD934X && OF_GPIO 713 help 714 This driver is to support GPIO block found on the Qualcomm Technologies 715 Inc WCD9340/WCD9341 Audio Codec. 716 717config GPIO_XGENE 718 bool "APM X-Gene GPIO controller support" 719 depends on ARM64 && OF_GPIO 720 help 721 This driver is to support the GPIO block within the APM X-Gene SoC 722 platform's generic flash controller. The GPIO pins are muxed with 723 the generic flash controller's address and data pins. Say yes 724 here to enable the GFC GPIO functionality. 725 726config GPIO_XGENE_SB 727 tristate "APM X-Gene GPIO standby controller support" 728 depends on (ARCH_XGENE || COMPILE_TEST) 729 select GPIO_GENERIC 730 select GPIOLIB_IRQCHIP 731 select IRQ_DOMAIN_HIERARCHY 732 help 733 This driver supports the GPIO block within the APM X-Gene 734 Standby Domain. Say yes here to enable the GPIO functionality. 735 736config GPIO_XILINX 737 tristate "Xilinx GPIO support" 738 select GPIOLIB_IRQCHIP 739 depends on OF_GPIO 740 help 741 Say yes here to support the Xilinx FPGA GPIO device. 742 743config GPIO_XLP 744 tristate "Cavium ThunderX2 GPIO support" 745 depends on ARCH_THUNDER2 || COMPILE_TEST 746 select GPIOLIB_IRQCHIP 747 help 748 This driver provides support for GPIO interface on Cavium's ThunderX2 749 CN99XX SoCs (Originally from Netlogic XLP). 750 751 If unsure, say N. 752 753config GPIO_XTENSA 754 bool "Xtensa GPIO32 support" 755 depends on XTENSA 756 depends on HAVE_XTENSA_GPIO32 757 depends on !SMP 758 help 759 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 760 and EXPSTATE (output) ports. 761 762config GPIO_ZEVIO 763 bool "LSI ZEVIO SoC memory mapped GPIOs" 764 depends on ARM 765 help 766 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 767 768config GPIO_ZYNQ 769 tristate "Xilinx Zynq GPIO support" 770 depends on ARCH_ZYNQ || ARCH_ZYNQMP 771 select GPIOLIB_IRQCHIP 772 help 773 Say yes here to support Xilinx Zynq GPIO controller. 774 775config GPIO_ZYNQMP_MODEPIN 776 tristate "ZynqMP ps-mode pin GPIO configuration driver" 777 depends on ZYNQMP_FIRMWARE 778 default ZYNQMP_FIRMWARE 779 help 780 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 781 driver. 782 783 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 784 is 4-bits boot mode pins. It sets and gets the status of 785 the ps-mode pin. Every pin can be configured as input/output. 786 787config GPIO_LOONGSON1 788 tristate "Loongson1 GPIO support" 789 depends on MACH_LOONGSON32 790 select GPIO_GENERIC 791 help 792 Say Y or M here to support GPIO on Loongson1 SoCs. 793 794config GPIO_AMD_FCH 795 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 796 help 797 This option enables driver for GPIO on AMD's Fusion Controller Hub, 798 as found on G-series SOCs (e.g. GX-412TC). 799 800 Note: This driver doesn't register itself automatically, as it 801 needs to be provided with platform-specific configuration. 802 (See e.g. CONFIG_PCENGINES_APU2.) 803 804config GPIO_MSC313 805 bool "MStar MSC313 GPIO support" 806 depends on ARCH_MSTARV7 807 default ARCH_MSTARV7 808 select GPIOLIB_IRQCHIP 809 select IRQ_DOMAIN_HIERARCHY 810 help 811 Say Y here to support the main GPIO block on MStar/SigmaStar 812 ARMv7-based SoCs. 813 814config GPIO_IDT3243X 815 tristate "IDT 79RC3243X GPIO support" 816 depends on MIKROTIK_RB532 || COMPILE_TEST 817 select GPIO_GENERIC 818 select GPIOLIB_IRQCHIP 819 help 820 Select this option to enable GPIO driver for 821 IDT 79RC3243X-based devices like Mikrotik RB532. 822 823 To compile this driver as a module, choose M here: the module will 824 be called gpio-idt3243x. 825 826endmenu 827 828menu "Port-mapped I/O GPIO drivers" 829 depends on X86 && HAS_IOPORT # I/O space access 830 831config GPIO_VX855 832 tristate "VIA VX855/VX875 GPIO" 833 depends on PCI 834 select MFD_CORE 835 select MFD_VX855 836 help 837 Support access to the VX855/VX875 GPIO lines through the GPIO library. 838 839 This driver provides common support for accessing the device. 840 Additional drivers must be enabled in order to use the 841 functionality of the device. 842 843config GPIO_I8255 844 tristate 845 select GPIO_REGMAP 846 help 847 Enables support for the i8255 interface library functions. The i8255 848 interface library provides functions to facilitate communication with 849 interfaces compatible with the venerable Intel 8255 Programmable 850 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 851 in the early 1970s but compatible interfaces are nowadays typically 852 found embedded in larger VLSI processing chips and FPGA components. 853 854 If built as a module its name will be gpio-i8255. 855 856config GPIO_104_DIO_48E 857 tristate "ACCES 104-DIO-48E GPIO support" 858 depends on PC104 859 select ISA_BUS_API 860 select REGMAP_MMIO 861 select REGMAP_IRQ 862 select GPIOLIB_IRQCHIP 863 select GPIO_I8255 864 select I8254 865 help 866 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 867 104-DIO-24E). The base port addresses for the devices may be 868 configured via the base module parameter. The interrupt line numbers 869 for the devices may be configured via the irq module parameter. 870 871config GPIO_104_IDIO_16 872 tristate "ACCES 104-IDIO-16 GPIO support" 873 depends on PC104 874 select ISA_BUS_API 875 select REGMAP_MMIO 876 select GPIO_IDIO_16 877 help 878 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 879 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 880 base port addresses for the devices may be configured via the base 881 module parameter. The interrupt line numbers for the devices may be 882 configured via the irq module parameter. 883 884config GPIO_104_IDI_48 885 tristate "ACCES 104-IDI-48 GPIO support" 886 depends on PC104 887 select ISA_BUS_API 888 select REGMAP_MMIO 889 select REGMAP_IRQ 890 select GPIOLIB_IRQCHIP 891 select GPIO_REGMAP 892 help 893 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 894 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 895 the devices may be configured via the base module parameter. The 896 interrupt line numbers for the devices may be configured via the irq 897 module parameter. 898 899config GPIO_F7188X 900 tristate "Fintek and Nuvoton Super-I/O GPIO support" 901 help 902 This option enables support for GPIOs found on Fintek Super-I/O 903 chips F71869, F71869A, F71882FG, F71889F and F81866. 904 As well as Nuvoton Super-I/O chip NCT6126D. 905 906 To compile this driver as a module, choose M here: the module will 907 be called f7188x-gpio. 908 909config GPIO_GPIO_MM 910 tristate "Diamond Systems GPIO-MM GPIO support" 911 depends on PC104 912 select ISA_BUS_API 913 select REGMAP_MMIO 914 select GPIO_I8255 915 help 916 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 917 918 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 919 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 920 support for these 48 channels of digital I/O. 921 922 The base port addresses for the devices may be configured via the base 923 array module parameter. 924 925config GPIO_IT87 926 tristate "IT87xx GPIO support" 927 help 928 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 929 930 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 931 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 932 well. 933 934 To compile this driver as a module, choose M here: the module will 935 be called gpio_it87. 936 937config GPIO_SCH 938 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 939 depends on (X86 || COMPILE_TEST) && ACPI 940 depends on LPC_SCH 941 select GPIOLIB_IRQCHIP 942 help 943 Say yes here to support GPIO interface on Intel Poulsbo SCH, 944 Intel Tunnel Creek processor, Intel Centerton processor or 945 Intel Quark X1000 SoC. 946 947 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 948 powered by the core power rail and are turned off during sleep 949 modes (S3 and higher). The remaining four GPIOs are powered by 950 the Intel SCH suspend power supply. These GPIOs remain 951 active during S3. The suspend-powered GPIOs can be used to wake the 952 system from the Suspend-to-RAM state. 953 954 The Intel Tunnel Creek processor has 5 GPIOs powered by the 955 core power rail and 9 from suspend power supply. 956 957 The Intel Centerton processor has a total of 30 GPIO pins. 958 Twenty-one are powered by the core power rail and 9 from the 959 suspend power supply. 960 961 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 962 power well and 6 from the suspend power well. 963 964config GPIO_SCH311X 965 tristate "SMSC SCH311x SuperI/O GPIO" 966 help 967 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 968 SCH3116 "Super I/O" chipsets. 969 970 To compile this driver as a module, choose M here: the module will 971 be called gpio-sch311x. 972 973config GPIO_TS5500 974 tristate "TS-5500 DIO blocks and compatibles" 975 depends on TS5500 || COMPILE_TEST 976 help 977 This driver supports Digital I/O exposed by pin blocks found on some 978 Technologic Systems platforms. It includes, but is not limited to, 3 979 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 980 LCD port. 981 982config GPIO_WINBOND 983 tristate "Winbond Super I/O GPIO support" 984 select ISA_BUS_API 985 help 986 This option enables support for GPIOs found on Winbond Super I/O 987 chips. 988 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 989 supported. 990 991 You will need to provide a module parameter "gpios", or a 992 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 993 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 994 995 To compile this driver as a module, choose M here: the module will 996 be called gpio-winbond. 997 998config GPIO_WS16C48 999 tristate "WinSystems WS16C48 GPIO support" 1000 select ISA_BUS_API 1001 select GPIOLIB_IRQCHIP 1002 help 1003 Enables GPIO support for the WinSystems WS16C48. The base port 1004 addresses for the devices may be configured via the base module 1005 parameter. The interrupt line numbers for the devices may be 1006 configured via the irq module parameter. 1007 1008endmenu 1009 1010menu "I2C GPIO expanders" 1011 depends on I2C 1012 1013config GPIO_ADNP 1014 tristate "Avionic Design N-bit GPIO expander" 1015 depends on OF_GPIO 1016 select GPIOLIB_IRQCHIP 1017 help 1018 This option enables support for N GPIOs found on Avionic Design 1019 I2C GPIO expanders. The register space will be extended by powers 1020 of two, so the controller will need to accommodate for that. For 1021 example: if a controller provides 48 pins, 6 registers will be 1022 enough to represent all pins, but the driver will assume a 1023 register layout for 64 pins (8 registers). 1024 1025config GPIO_FXL6408 1026 tristate "FXL6408 I2C GPIO expander" 1027 select GPIO_REGMAP 1028 select REGMAP_I2C 1029 help 1030 GPIO driver for Fairchild Semiconductor FXL6408 GPIO expander. 1031 1032 To compile this driver as a module, choose M here: the module will 1033 be called gpio-fxl6408. 1034 1035config GPIO_DS4520 1036 tristate "DS4520 I2C GPIO expander" 1037 select REGMAP_I2C 1038 select GPIO_REGMAP 1039 help 1040 GPIO driver for ADI DS4520 I2C-based GPIO expander. 1041 Say yes here to enable the GPIO driver for the ADI DS4520 chip. 1042 1043 To compile this driver as a module, choose M here: the module will 1044 be called gpio-ds4520. 1045 1046config GPIO_GW_PLD 1047 tristate "Gateworks PLD GPIO Expander" 1048 depends on OF_GPIO 1049 help 1050 Say yes here to provide access to the Gateworks I2C PLD GPIO 1051 Expander. This is used at least on the Cambria GW2358-4. 1052 1053config GPIO_MAX7300 1054 tristate "Maxim MAX7300 GPIO expander" 1055 select GPIO_MAX730X 1056 help 1057 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1058 1059config GPIO_MAX732X 1060 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1061 help 1062 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1063 Port Expanders. Each IO port on these chips has a fixed role of 1064 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1065 Input and Output (designed by 'P'). The combinations are listed 1066 below: 1067 1068 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1069 max7322 (4I4O), max7323 (4P4O) 1070 1071 16 bits: max7324 (8I8O), max7325 (8P8O), 1072 max7326 (4I12O), max7327 (4P12O) 1073 1074 Board setup code must specify the model to use, and the start 1075 number for these GPIOs. 1076 1077config GPIO_MAX732X_IRQ 1078 bool "Interrupt controller support for MAX732x" 1079 depends on GPIO_MAX732X=y 1080 select GPIOLIB_IRQCHIP 1081 help 1082 Say yes here to enable the max732x to be used as an interrupt 1083 controller. It requires the driver to be built in the kernel. 1084 1085config GPIO_PCA953X 1086 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1087 select REGMAP_I2C 1088 help 1089 Say yes here to provide access to several register-oriented 1090 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1091 models include: 1092 1093 4 bits: pca9536, pca9537 1094 1095 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1096 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1097 1098 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1099 tca6416 1100 1101 24 bits: tca6424 1102 1103 40 bits: pca9505, pca9698 1104 1105config GPIO_PCA953X_IRQ 1106 bool "Interrupt controller support for PCA953x" 1107 depends on GPIO_PCA953X 1108 select GPIOLIB_IRQCHIP 1109 help 1110 Say yes here to enable the pca953x to be used as an interrupt 1111 controller. 1112 1113config GPIO_PCA9570 1114 tristate "PCA9570 4-Bit I2C GPO expander" 1115 help 1116 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1117 1118 To compile this driver as a module, choose M here: the module will 1119 be called gpio-pca9570. 1120 1121config GPIO_PCF857X 1122 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1123 select GPIOLIB_IRQCHIP 1124 select IRQ_DOMAIN 1125 help 1126 Say yes here to provide access to most "quasi-bidirectional" I2C 1127 GPIO expanders used for additional digital outputs or inputs. 1128 Most of these parts are from NXP, though TI is a second source for 1129 some of them. Compatible models include: 1130 1131 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1132 pca9670, pca9672, pca9674, pca9674a, 1133 max7328, max7329 1134 1135 16 bits: pcf8575, pcf8575c, pca8575, 1136 pca9671, pca9673, pca9675 1137 1138 Your board setup code will need to declare the expanders in 1139 use, and assign numbers to the GPIOs they expose. Those GPIOs 1140 can then be used from drivers and other kernel code, just like 1141 other GPIOs, but only accessible from task contexts. 1142 1143 This driver provides an in-kernel interface to those GPIOs using 1144 platform-neutral GPIO calls. 1145 1146config GPIO_TPIC2810 1147 tristate "TPIC2810 8-Bit I2C GPO expander" 1148 help 1149 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1150 1151 To compile this driver as a module, choose M here: the module will 1152 be called gpio-tpic2810. 1153 1154config GPIO_TS4900 1155 tristate "Technologic Systems FPGA I2C GPIO" 1156 depends on SOC_IMX6 || COMPILE_TEST 1157 select REGMAP_I2C 1158 help 1159 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1160 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1161 1162endmenu 1163 1164menu "MFD GPIO expanders" 1165 1166config GPIO_ADP5520 1167 tristate "GPIO Support for ADP5520 PMIC" 1168 depends on PMIC_ADP5520 1169 help 1170 This option enables support for on-chip GPIO found 1171 on Analog Devices ADP5520 PMICs. 1172 1173config GPIO_ALTERA_A10SR 1174 tristate "Altera Arria10 System Resource GPIO" 1175 depends on MFD_ALTERA_A10SR 1176 help 1177 Driver for Arria10 Development Kit GPIO expansion which 1178 includes reads of pushbuttons and DIP switches as well 1179 as writes to LEDs. 1180 1181config GPIO_ARIZONA 1182 tristate "Wolfson Microelectronics Arizona class devices" 1183 depends on MFD_ARIZONA 1184 help 1185 Support for GPIOs on Wolfson Arizona class devices. 1186 1187config GPIO_BD71815 1188 tristate "ROHM BD71815 PMIC GPIO support" 1189 depends on MFD_ROHM_BD71828 1190 help 1191 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1192 available on the ROHM PMIC. 1193 1194 This driver can also be built as a module. If so, the module 1195 will be called gpio-bd71815. 1196 1197config GPIO_BD71828 1198 tristate "ROHM BD71828 GPIO support" 1199 depends on MFD_ROHM_BD71828 1200 help 1201 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1202 available on the ROHM PMIC in total. The GPIOs are limited to 1203 outputs only and pins must be configured to GPIO outputs by 1204 OTP. Enable this only if you want to use these pins as outputs. 1205 1206 This driver can also be built as a module. If so, the module 1207 will be called gpio-bd71828. 1208 1209config GPIO_BD9571MWV 1210 tristate "ROHM BD9571 GPIO support" 1211 depends on MFD_BD9571MWV 1212 help 1213 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1214 available on the ROHM PMIC in total, both of which can also 1215 generate interrupts. 1216 1217 This driver can also be built as a module. If so, the module 1218 will be called gpio-bd9571mwv. 1219 1220config GPIO_CRYSTAL_COVE 1221 tristate "GPIO support for Crystal Cove PMIC" 1222 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1223 select GPIOLIB_IRQCHIP 1224 help 1225 Support for GPIO pins on Crystal Cove PMIC. 1226 1227 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1228 inside. 1229 1230 This driver can also be built as a module. If so, the module will be 1231 called gpio-crystalcove. 1232 1233config GPIO_CS5535 1234 tristate "AMD CS5535/CS5536 GPIO support" 1235 depends on X86 || MIPS || COMPILE_TEST 1236 depends on MFD_CS5535 1237 help 1238 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1239 can be used for quite a number of things. The CS5535/6 is found on 1240 AMD Geode and Lemote Yeeloong devices. 1241 1242 If unsure, say N. 1243 1244config GPIO_DA9052 1245 tristate "Dialog DA9052 GPIO" 1246 depends on PMIC_DA9052 1247 help 1248 Say yes here to enable the GPIO driver for the DA9052 chip. 1249 1250config GPIO_DA9055 1251 tristate "Dialog Semiconductor DA9055 GPIO" 1252 depends on MFD_DA9055 1253 help 1254 Say yes here to enable the GPIO driver for the DA9055 chip. 1255 1256 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1257 be controlled by this driver. 1258 1259 If driver is built as a module it will be called gpio-da9055. 1260 1261config GPIO_DLN2 1262 tristate "Diolan DLN2 GPIO support" 1263 depends on MFD_DLN2 1264 select GPIOLIB_IRQCHIP 1265 1266 help 1267 Select this option to enable GPIO driver for the Diolan DLN2 1268 board. 1269 1270 This driver can also be built as a module. If so, the module 1271 will be called gpio-dln2. 1272 1273config HTC_EGPIO 1274 bool "HTC EGPIO support" 1275 depends on ARM 1276 help 1277 This driver supports the CPLD egpio chip present on 1278 several HTC phones. It provides basic support for input 1279 pins, output pins, and IRQs. 1280 1281config GPIO_ELKHARTLAKE 1282 tristate "Intel Elkhart Lake PSE GPIO support" 1283 depends on X86 || COMPILE_TEST 1284 select GPIO_TANGIER 1285 help 1286 Select this option to enable GPIO support for Intel Elkhart Lake 1287 PSE GPIO IP. 1288 1289 To compile this driver as a module, choose M here: the module will 1290 be called gpio-elkhartlake. 1291 1292config GPIO_JANZ_TTL 1293 tristate "Janz VMOD-TTL Digital IO Module" 1294 depends on MFD_JANZ_CMODIO 1295 help 1296 This enables support for the Janz VMOD-TTL Digital IO module. 1297 This driver provides support for driving the pins in output 1298 mode only. Input mode is not supported. 1299 1300config GPIO_KEMPLD 1301 tristate "Kontron ETX / COMexpress GPIO" 1302 depends on MFD_KEMPLD 1303 help 1304 This enables support for the PLD GPIO interface on some Kontron ETX 1305 and COMexpress (ETXexpress) modules. 1306 1307 This driver can also be built as a module. If so, the module will be 1308 called gpio-kempld. 1309 1310config GPIO_LJCA 1311 tristate "INTEL La Jolla Cove Adapter GPIO support" 1312 depends on MFD_LJCA 1313 select GPIOLIB_IRQCHIP 1314 default MFD_LJCA 1315 help 1316 Select this option to enable GPIO driver for the INTEL 1317 La Jolla Cove Adapter (LJCA) board. 1318 1319 This driver can also be built as a module. If so, the module 1320 will be called gpio-ljca. 1321 1322config GPIO_LP3943 1323 tristate "TI/National Semiconductor LP3943 GPIO expander" 1324 depends on MFD_LP3943 1325 help 1326 GPIO driver for LP3943 MFD. 1327 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1328 Open drain outputs are required for this usage. 1329 1330config GPIO_LP873X 1331 tristate "TI LP873X GPO" 1332 depends on MFD_TI_LP873X 1333 help 1334 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1335 on LP873X PMICs. 1336 1337 This driver can also be built as a module. If so, the module will be 1338 called gpio-lp873x. 1339 1340config GPIO_LP87565 1341 tristate "TI LP87565 GPIO" 1342 depends on MFD_TI_LP87565 1343 help 1344 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1345 on LP87565 PMICs. 1346 1347 This driver can also be built as a module. If so, the module will be 1348 called gpio-lp87565. 1349 1350config GPIO_MADERA 1351 tristate "Cirrus Logic Madera class codecs" 1352 depends on PINCTRL_MADERA 1353 help 1354 Support for GPIOs on Cirrus Logic Madera class codecs. 1355 1356config GPIO_MAX77620 1357 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1358 depends on MFD_MAX77620 1359 select GPIOLIB_IRQCHIP 1360 help 1361 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1362 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1363 driver also provides interrupt support for each of the GPIOs. 1364 Say yes here to enable the max77620 to be used as GPIO controller. 1365 1366config GPIO_MAX77650 1367 tristate "Maxim MAX77650/77651 GPIO support" 1368 depends on MFD_MAX77650 1369 help 1370 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1371 These chips have a single pin that can be configured as GPIO. 1372 1373config GPIO_PALMAS 1374 bool "TI PALMAS series PMICs GPIO" 1375 depends on MFD_PALMAS 1376 help 1377 Select this option to enable GPIO driver for the TI PALMAS 1378 series chip family. 1379 1380config GPIO_PMIC_EIC_SPRD 1381 tristate "Spreadtrum PMIC EIC support" 1382 depends on MFD_SC27XX_PMIC || COMPILE_TEST 1383 depends on OF_GPIO 1384 select GPIOLIB_IRQCHIP 1385 help 1386 Say yes here to support Spreadtrum PMIC EIC device. 1387 1388config GPIO_RC5T583 1389 bool "RICOH RC5T583 GPIO" 1390 depends on MFD_RC5T583 1391 help 1392 Select this option to enable GPIO driver for the Ricoh RC5T583 1393 chip family. 1394 This driver provides the support for driving/reading the GPIO pins 1395 of RC5T583 device through standard GPIO library. 1396 1397config GPIO_SL28CPLD 1398 tristate "Kontron sl28cpld GPIO support" 1399 depends on MFD_SL28CPLD || COMPILE_TEST 1400 select GPIO_REGMAP 1401 select GPIOLIB_IRQCHIP 1402 select REGMAP_IRQ 1403 help 1404 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1405 1406 This driver can also be built as a module. If so, the module will be 1407 called gpio-sl28cpld. 1408 1409config GPIO_STMPE 1410 bool "STMPE GPIOs" 1411 depends on MFD_STMPE 1412 depends on OF_GPIO 1413 select GPIOLIB_IRQCHIP 1414 help 1415 This enables support for the GPIOs found on the STMPE I/O 1416 Expanders. 1417 1418config GPIO_TC3589X 1419 bool "TC3589X GPIOs" 1420 depends on MFD_TC3589X 1421 depends on OF_GPIO 1422 select GPIOLIB_IRQCHIP 1423 help 1424 This enables support for the GPIOs found on the TC3589X 1425 I/O Expander. 1426 1427config GPIO_TIMBERDALE 1428 bool "Support for timberdale GPIO IP" 1429 depends on MFD_TIMBERDALE 1430 help 1431 Add support for the GPIO IP in the timberdale FPGA. 1432 1433config GPIO_TN48M_CPLD 1434 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1435 depends on MFD_TN48M_CPLD 1436 select GPIO_REGMAP 1437 help 1438 This enables support for the GPIOs found on the Delta 1439 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1440 they are input-only or output-only type. 1441 1442 This driver can also be built as a module. If so, the 1443 module will be called gpio-tn48m. 1444 1445config GPIO_TPS65086 1446 tristate "TI TPS65086 GPO" 1447 depends on MFD_TPS65086 1448 help 1449 This driver supports the GPO on TI TPS65086x PMICs. 1450 1451config GPIO_TPS65218 1452 tristate "TPS65218 GPIO" 1453 depends on MFD_TPS65218 1454 help 1455 Select this option to enable GPIO driver for the TPS65218 1456 chip family. 1457 1458config GPIO_TPS65219 1459 tristate "TPS65219 GPIO" 1460 depends on MFD_TPS65219 1461 default MFD_TPS65219 1462 help 1463 Select this option to enable GPIO driver for the TPS65219 chip 1464 family. 1465 GPIO0 is statically configured as either input or output prior to 1466 Linux boot. It is used for MULTI_DEVICE_ENABLE function. This setting 1467 is statically configured by NVM. GPIO0 can't be used as a generic 1468 GPIO. It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when 1469 MULTI_DEVICE_EN=1. 1470 1471 This driver can also be built as a module. If so, the module will be 1472 called gpio_tps65219. 1473 1474config GPIO_TPS6586X 1475 bool "TPS6586X GPIO" 1476 depends on MFD_TPS6586X 1477 help 1478 Select this option to enable GPIO driver for the TPS6586X 1479 chip family. 1480 1481config GPIO_TPS65910 1482 bool "TPS65910 GPIO" 1483 depends on MFD_TPS65910 1484 help 1485 Select this option to enable GPIO driver for the TPS65910 1486 chip family. 1487 1488config GPIO_TPS65912 1489 tristate "TI TPS65912 GPIO" 1490 depends on MFD_TPS65912 1491 help 1492 This driver supports TPS65912 GPIO chip. 1493 1494config GPIO_TPS68470 1495 tristate "TPS68470 GPIO" 1496 depends on INTEL_SKL_INT3472 1497 help 1498 Select this option to enable GPIO driver for the TPS68470 1499 chip family. 1500 There are 7 GPIOs and few sensor-related GPIOs supported 1501 by the TPS68470. While the 7 GPIOs can be configured as 1502 input or output as appropriate, the sensor related GPIOs 1503 are "output only" GPIOs. 1504 1505config GPIO_TQMX86 1506 tristate "TQ-Systems QTMX86 GPIO" 1507 depends on MFD_TQMX86 || COMPILE_TEST 1508 depends on HAS_IOPORT_MAP 1509 select GPIOLIB_IRQCHIP 1510 help 1511 This driver supports GPIO on the TQMX86 IO controller. 1512 1513config GPIO_TWL4030 1514 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1515 depends on TWL4030_CORE 1516 help 1517 Say yes here to access the GPIO signals of various multi-function 1518 power management chips from Texas Instruments. 1519 1520config GPIO_TWL6040 1521 tristate "TWL6040 GPO" 1522 depends on TWL6040_CORE 1523 help 1524 Say yes here to access the GPO signals of twl6040 1525 audio chip from Texas Instruments. 1526 1527config GPIO_WHISKEY_COVE 1528 tristate "GPIO support for Whiskey Cove PMIC" 1529 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1530 select GPIOLIB_IRQCHIP 1531 help 1532 Support for GPIO pins on Whiskey Cove PMIC. 1533 1534 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1535 inside. 1536 1537 This driver can also be built as a module. If so, the module will be 1538 called gpio-wcove. 1539 1540config GPIO_WM831X 1541 tristate "WM831x GPIOs" 1542 depends on MFD_WM831X 1543 help 1544 Say yes here to access the GPIO signals of WM831x power management 1545 chips from Wolfson Microelectronics. 1546 1547config GPIO_WM8350 1548 tristate "WM8350 GPIOs" 1549 depends on MFD_WM8350 1550 help 1551 Say yes here to access the GPIO signals of WM8350 power management 1552 chips from Wolfson Microelectronics. 1553 1554config GPIO_WM8994 1555 tristate "WM8994 GPIOs" 1556 depends on MFD_WM8994 1557 help 1558 Say yes here to access the GPIO signals of WM8994 audio hub 1559 CODECs from Wolfson Microelectronics. 1560 1561endmenu 1562 1563menu "PCI GPIO expanders" 1564 depends on PCI 1565 1566config GPIO_AMD8111 1567 tristate "AMD 8111 GPIO driver" 1568 depends on X86 || COMPILE_TEST 1569 depends on HAS_IOPORT_MAP 1570 help 1571 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1572 1573 Note that usually system firmware/ACPI handles GPIO pins on their 1574 own and users might easily break their systems with uncareful usage 1575 of this driver! 1576 1577 If unsure, say N 1578 1579config GPIO_BT8XX 1580 tristate "BT8XX GPIO abuser" 1581 depends on VIDEO_BT848=n 1582 help 1583 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1584 as a cheap PCI GPIO card. 1585 1586 This chip can be found on Miro, Hauppauge and STB TV-cards. 1587 1588 The card needs to be physically altered for using it as a 1589 GPIO card. For more information on how to build a GPIO card 1590 from a BT8xx TV card, see the documentation file at 1591 Documentation/driver-api/gpio/bt8xxgpio.rst 1592 1593 If unsure, say N. 1594 1595config GPIO_MERRIFIELD 1596 tristate "Intel Merrifield GPIO support" 1597 depends on X86_INTEL_MID 1598 select GPIO_TANGIER 1599 help 1600 Say Y here to support Intel Merrifield GPIO. 1601 1602config GPIO_MLXBF 1603 tristate "Mellanox BlueField SoC GPIO" 1604 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1605 select GPIO_GENERIC 1606 help 1607 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1608 1609config GPIO_MLXBF2 1610 tristate "Mellanox BlueField 2 SoC GPIO" 1611 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1612 select GPIO_GENERIC 1613 select GPIOLIB_IRQCHIP 1614 help 1615 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1616 1617config GPIO_MLXBF3 1618 tristate "Mellanox BlueField 3 SoC GPIO" 1619 depends on (MELLANOX_PLATFORM && ARM64) || COMPILE_TEST 1620 select GPIO_GENERIC 1621 select GPIOLIB_IRQCHIP 1622 help 1623 Say Y if you want GPIO support on Mellanox BlueField 3 SoC. 1624 This GPIO controller supports interrupt handling and enables the 1625 manipulation of certain GPIO pins. 1626 This controller should be used in parallel with pinctrl-mlxbf3 to 1627 control the desired GPIOs. 1628 This driver can also be built as a module called mlxbf3-gpio. 1629 1630config GPIO_ML_IOH 1631 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1632 depends on X86 || COMPILE_TEST 1633 select GENERIC_IRQ_CHIP 1634 help 1635 ML7213 is companion chip for Intel Atom E6xx series. 1636 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1637 Hub) which is for IVI (In-Vehicle Infotainment) use. 1638 This driver can access the IOH's GPIO device. 1639 1640config GPIO_PCH 1641 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1642 depends on X86_32 || MIPS || COMPILE_TEST 1643 select GENERIC_IRQ_CHIP 1644 help 1645 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1646 which is an IOH (Input/Output Hub) for x86 embedded processor. 1647 This driver can access PCH GPIO device. 1648 1649 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1650 Output Hub), ML7223 and ML7831. 1651 ML7223 IOH is for MP (Media Phone) use. 1652 ML7831 IOH is for general purpose use. 1653 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1654 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1655 1656config GPIO_PCI_IDIO_16 1657 tristate "ACCES PCI-IDIO-16 GPIO support" 1658 select REGMAP_MMIO 1659 select GPIO_IDIO_16 1660 help 1661 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1662 generated when any of the inputs change state (low to high or high to 1663 low). Input filter control is not supported by this driver, and the 1664 input filters are deactivated by this driver. 1665 1666config GPIO_PCIE_IDIO_24 1667 tristate "ACCES PCIe-IDIO-24 GPIO support" 1668 select GPIOLIB_IRQCHIP 1669 help 1670 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1671 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1672 when any of the inputs change state (low to high or high to low). 1673 Input filter control is not supported by this driver, and the input 1674 filters are deactivated by this driver. 1675 1676config GPIO_RDC321X 1677 tristate "RDC R-321x GPIO support" 1678 select MFD_CORE 1679 select MFD_RDC321X 1680 help 1681 Support for the RDC R321x SoC GPIOs over southbridge 1682 PCI configuration space. 1683 1684config GPIO_SODAVILLE 1685 bool "Intel Sodaville GPIO support" 1686 depends on X86 && OF 1687 select GPIO_GENERIC 1688 select GENERIC_IRQ_CHIP 1689 help 1690 Say Y here to support Intel Sodaville GPIO. 1691 1692endmenu 1693 1694menu "SPI GPIO expanders" 1695 depends on SPI_MASTER 1696 1697config GPIO_74X164 1698 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1699 depends on OF_GPIO 1700 help 1701 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1702 shift registers. This driver can be used to provide access 1703 to more GPIO outputs. 1704 1705config GPIO_MAX3191X 1706 tristate "Maxim MAX3191x industrial serializer" 1707 select CRC8 1708 help 1709 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1710 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1711 chip to make 8 digital 24V inputs available via SPI. Supports 1712 CRC checksums to guard against electromagnetic interference, 1713 as well as undervoltage and overtemperature detection. 1714 1715config GPIO_MAX7301 1716 tristate "Maxim MAX7301 GPIO expander" 1717 select GPIO_MAX730X 1718 help 1719 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1720 1721config GPIO_MC33880 1722 tristate "Freescale MC33880 high-side/low-side switch" 1723 help 1724 SPI driver for Freescale MC33880 high-side/low-side switch. 1725 This provides GPIO interface supporting inputs and outputs. 1726 1727config GPIO_PISOSR 1728 tristate "Generic parallel-in/serial-out shift register" 1729 help 1730 GPIO driver for SPI compatible parallel-in/serial-out shift 1731 registers. These are input only devices. 1732 1733config GPIO_XRA1403 1734 tristate "EXAR XRA1403 16-bit GPIO expander" 1735 select REGMAP_SPI 1736 help 1737 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1738 1739config GPIO_MOXTET 1740 tristate "Turris Mox Moxtet bus GPIO expander" 1741 depends on MOXTET 1742 help 1743 Say yes here if you are building for the Turris Mox router. 1744 This is the driver needed for configuring the GPIOs via the Moxtet 1745 bus. For example the Mox module with SFP cage needs this driver 1746 so that phylink can use corresponding GPIOs. 1747 1748endmenu 1749 1750menu "USB GPIO expanders" 1751 depends on USB 1752 1753config GPIO_VIPERBOARD 1754 tristate "Viperboard GPIO a & b support" 1755 depends on MFD_VIPERBOARD 1756 help 1757 Say yes here to access the GPIO signals of Nano River 1758 Technologies Viperboard. There are two GPIO chips on the 1759 board: gpioa and gpiob. 1760 See viperboard API specification and Nano 1761 River Tech's viperboard.h for detailed meaning 1762 of the module parameters. 1763 1764endmenu 1765 1766menu "Virtual GPIO drivers" 1767 1768config GPIO_AGGREGATOR 1769 tristate "GPIO Aggregator" 1770 help 1771 Say yes here to enable the GPIO Aggregator, which provides a way to 1772 aggregate existing GPIO lines into a new virtual GPIO chip. 1773 This can serve the following purposes: 1774 - Assign permissions for a collection of GPIO lines to a user, 1775 - Export a collection of GPIO lines to a virtual machine, 1776 - Provide a generic driver for a GPIO-operated device in an 1777 industrial control context, to be operated from userspace using 1778 the GPIO chardev interface. 1779 1780config GPIO_LATCH 1781 tristate "GPIO latch driver" 1782 help 1783 Say yes here to enable a driver for GPIO multiplexers based on latches 1784 connected to other GPIOs. 1785 1786config GPIO_MOCKUP 1787 tristate "GPIO Testing Driver" 1788 select IRQ_SIM 1789 help 1790 This enables GPIO Testing driver, which provides a way to test GPIO 1791 subsystem through sysfs (or char device) and debugfs. 1792 User could use it through the script in 1793 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1794 it. 1795 1796config GPIO_VIRTIO 1797 tristate "VirtIO GPIO support" 1798 depends on VIRTIO 1799 select GPIOLIB_IRQCHIP 1800 help 1801 Say Y here to enable guest support for virtio-based GPIO controllers. 1802 1803 These virtual GPIOs can be routed to real GPIOs or attached to 1804 simulators on the host (like QEMU). 1805 1806config GPIO_SIM 1807 tristate "GPIO Simulator Module" 1808 select IRQ_SIM 1809 select CONFIGFS_FS 1810 help 1811 This enables the GPIO simulator - a configfs-based GPIO testing 1812 driver. 1813 1814endmenu 1815 1816endif 1817