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 DEBUG_GPIO 43 bool "Debug GPIO calls" 44 depends on DEBUG_KERNEL 45 help 46 Say Y here to add some extra checks and diagnostics to GPIO calls. 47 These checks help ensure that GPIOs have been properly initialized 48 before they are used, and that sleeping calls are not made from 49 non-sleeping contexts. They can make bitbanged serial protocols 50 slower. The diagnostics help catch the type of setup errors 51 that are most common when setting up new platforms or boards. 52 53config GPIO_SYSFS 54 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT 55 depends on SYSFS 56 select GPIO_CDEV # We need to encourage the new ABI 57 help 58 Say Y here to add the legacy sysfs interface for GPIOs. 59 60 This ABI is deprecated. If you want to use GPIO from userspace, 61 use the character device /dev/gpiochipN with the appropriate 62 ioctl() operations instead. 63 64config GPIO_CDEV 65 bool 66 prompt "Character device (/dev/gpiochipN) support" if EXPERT 67 default y 68 help 69 Say Y here to add the character device /dev/gpiochipN interface 70 for GPIOs. The character device allows userspace to control GPIOs 71 using ioctl() operations. 72 73 Only say N if you are sure that the GPIO character device is not 74 required. 75 76 If unsure, say Y. 77 78config GPIO_CDEV_V1 79 bool "Support GPIO ABI Version 1" 80 default y 81 depends on GPIO_CDEV 82 help 83 Say Y here to support version 1 of the GPIO CDEV ABI. 84 85 This ABI version is deprecated. 86 Please use the latest ABI for new developments. 87 88 If unsure, say Y. 89 90config GPIO_GENERIC 91 depends on HAS_IOMEM # Only for IOMEM drivers 92 tristate 93 94config GPIO_REGMAP 95 depends on REGMAP 96 tristate 97 98# put drivers in the right section, in alphabetical order 99 100# This symbol is selected by both I2C and SPI expanders 101config GPIO_MAX730X 102 tristate 103 104config GPIO_IDIO_16 105 tristate 106 help 107 Enables support for the idio-16 library functions. The idio-16 library 108 provides functions to facilitate communication with devices within the 109 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16. 110 111 If built as a module its name will be gpio-idio-16. 112 113menu "Memory mapped GPIO drivers" 114 depends on HAS_IOMEM 115 116config GPIO_74XX_MMIO 117 tristate "GPIO driver for 74xx-ICs with MMIO access" 118 depends on OF_GPIO 119 select GPIO_GENERIC 120 help 121 Say yes here to support GPIO functionality for 74xx-compatible ICs 122 with MMIO access. Compatible models include: 123 1 bit: 741G125 (Input), 741G74 (Output) 124 2 bits: 742G125 (Input), 7474 (Output) 125 4 bits: 74125 (Input), 74175 (Output) 126 6 bits: 74365 (Input), 74174 (Output) 127 8 bits: 74244 (Input), 74273 (Output) 128 16 bits: 741624 (Input), 7416374 (Output) 129 130config GPIO_ALTERA 131 tristate "Altera GPIO" 132 depends on OF_GPIO 133 select GPIOLIB_IRQCHIP 134 help 135 Say Y or M here to build support for the Altera PIO device. 136 137 If driver is built as a module it will be called gpio-altera. 138 139config GPIO_AMDPT 140 tristate "AMD Promontory GPIO support" 141 depends on ACPI 142 select GPIO_GENERIC 143 help 144 Driver for GPIO functionality on Promontory IOHub. 145 Requires ACPI ASL code to enumerate as a platform device. 146 147config GPIO_ASPEED 148 tristate "Aspeed GPIO support" 149 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 150 select GPIOLIB_IRQCHIP 151 help 152 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 153 154config GPIO_ASPEED_SGPIO 155 bool "Aspeed SGPIO support" 156 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 157 select GPIO_GENERIC 158 select GPIOLIB_IRQCHIP 159 help 160 Say Y here to support Aspeed AST2500 SGPIO functionality. 161 162config GPIO_ATH79 163 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 164 default y if ATH79 165 depends on ATH79 || COMPILE_TEST 166 select GPIO_GENERIC 167 select GPIOLIB_IRQCHIP 168 help 169 Select this option to enable GPIO driver for 170 Atheros AR71XX/AR724X/AR913X SoC devices. 171 172config GPIO_RASPBERRYPI_EXP 173 tristate "Raspberry Pi 3 GPIO Expander" 174 default RASPBERRYPI_FIRMWARE 175 depends on OF_GPIO 176 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 177 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 178 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 179 help 180 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 181 the firmware mailbox to communicate with VideoCore on BCM283x chips. 182 183config GPIO_BCM_KONA 184 bool "Broadcom Kona GPIO" 185 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 186 help 187 Turn on GPIO support for Broadcom "Kona" chips. 188 189config GPIO_BCM_XGS_IPROC 190 tristate "BRCM XGS iProc GPIO support" 191 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 192 select GPIO_GENERIC 193 select GPIOLIB_IRQCHIP 194 default ARCH_BCM_IPROC 195 help 196 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 197 198config GPIO_BRCMSTB 199 tristate "BRCMSTB GPIO support" 200 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 201 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 202 select GPIO_GENERIC 203 select IRQ_DOMAIN 204 help 205 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 206 207config GPIO_CADENCE 208 tristate "Cadence GPIO support" 209 depends on OF_GPIO 210 select GPIO_GENERIC 211 select GPIOLIB_IRQCHIP 212 help 213 Say yes here to enable support for Cadence GPIO controller. 214 215config GPIO_CLPS711X 216 tristate "CLPS711X GPIO support" 217 depends on ARCH_CLPS711X || COMPILE_TEST 218 select GPIO_GENERIC 219 help 220 Say yes here to support GPIO on CLPS711X SoCs. 221 222config GPIO_DAVINCI 223 tristate "TI Davinci/Keystone GPIO support" 224 default y if ARCH_DAVINCI 225 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 226 help 227 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 228 229config GPIO_DWAPB 230 tristate "Synopsys DesignWare APB GPIO driver" 231 select GPIO_GENERIC 232 select GPIOLIB_IRQCHIP 233 help 234 Say Y or M here to build support for the Synopsys DesignWare APB 235 GPIO block. 236 237config GPIO_EIC_SPRD 238 tristate "Spreadtrum EIC support" 239 depends on ARCH_SPRD || COMPILE_TEST 240 depends on OF_GPIO 241 select GPIOLIB_IRQCHIP 242 help 243 Say yes here to support Spreadtrum EIC device. 244 245config GPIO_EM 246 tristate "Emma Mobile GPIO" 247 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 248 help 249 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 250 251config GPIO_EN7523 252 tristate "Airoha GPIO support" 253 depends on ARCH_AIROHA 254 default ARCH_AIROHA 255 select GPIO_GENERIC 256 select GPIOLIB_IRQCHIP 257 help 258 Say Y or M here to support the GPIO controller block on the 259 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 260 261config GPIO_EP93XX 262 def_bool y 263 depends on ARCH_EP93XX 264 select GPIO_GENERIC 265 select GPIOLIB_IRQCHIP 266 267config GPIO_EXAR 268 tristate "Support for GPIO pins on XR17V352/354/358" 269 depends on SERIAL_8250_EXAR 270 select REGMAP_MMIO 271 help 272 Selecting this option will enable handling of GPIO pins present 273 on Exar XR17V352/354/358 chips. 274 275config GPIO_GE_FPGA 276 bool "GE FPGA based GPIO" 277 depends on GE_FPGA 278 select GPIO_GENERIC 279 help 280 Support for common GPIO functionality provided on some GE Single Board 281 Computers. 282 283 This driver provides basic support (configure as input or output, read 284 and write pin state) for GPIO implemented in a number of GE single 285 board computers. 286 287config GPIO_FTGPIO010 288 bool "Faraday FTGPIO010 GPIO" 289 depends on OF_GPIO 290 select GPIO_GENERIC 291 select GPIOLIB_IRQCHIP 292 default (ARCH_GEMINI || ARCH_MOXART) 293 help 294 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 295 Cortina systems Gemini platforms, Moxa ART and others. 296 297config GPIO_GENERIC_PLATFORM 298 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 299 select GPIO_GENERIC 300 help 301 Say yes here to support basic platform_device memory-mapped GPIO controllers. 302 303config GPIO_GRGPIO 304 tristate "Aeroflex Gaisler GRGPIO support" 305 depends on OF_GPIO 306 select GPIO_GENERIC 307 select IRQ_DOMAIN 308 help 309 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 310 VHDL IP core library. 311 312config GPIO_HISI 313 tristate "HiSilicon GPIO controller driver" 314 depends on ARM64 || COMPILE_TEST 315 select GPIO_GENERIC 316 select GPIOLIB_IRQCHIP 317 help 318 Say Y or M here to build support for the HiSilicon GPIO controller 319 driver GPIO block. 320 This GPIO controller supports double-edge interrupt and multi-core 321 concurrent access. 322 323config GPIO_HLWD 324 tristate "Nintendo Wii (Hollywood) GPIO" 325 depends on OF_GPIO 326 select GPIO_GENERIC 327 select GPIOLIB_IRQCHIP 328 help 329 Select this to support the GPIO controller of the Nintendo Wii. 330 331 If unsure, say N. 332 333config GPIO_ICH 334 tristate "Intel ICH GPIO" 335 depends on X86 336 depends on LPC_ICH 337 help 338 Say yes here to support the GPIO functionality of a number of Intel 339 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 340 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 341 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 342 343 If unsure, say N. 344 345config GPIO_IMX_SCU 346 def_bool y 347 depends on IMX_SCU 348 349config GPIO_IXP4XX 350 bool "Intel IXP4xx GPIO" 351 depends on ARCH_IXP4XX 352 depends on OF 353 select GPIO_GENERIC 354 select GPIOLIB_IRQCHIP 355 select IRQ_DOMAIN_HIERARCHY 356 help 357 Say yes here to support the GPIO functionality of a number of Intel 358 IXP4xx series of chips. 359 360 If unsure, say N. 361 362config GPIO_LOGICVC 363 tristate "Xylon LogiCVC GPIO support" 364 depends on MFD_SYSCON && OF 365 help 366 Say yes here to support GPIO functionality of the Xylon LogiCVC 367 programmable logic block. 368 369config GPIO_LOONGSON 370 bool "Loongson-2/3 GPIO support" 371 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 372 help 373 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 374 375config GPIO_LPC18XX 376 tristate "NXP LPC18XX/43XX GPIO support" 377 default y if ARCH_LPC18XX 378 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 379 select IRQ_DOMAIN_HIERARCHY 380 help 381 Select this option to enable GPIO driver for 382 NXP LPC18XX/43XX devices. 383 384config GPIO_LPC32XX 385 tristate "NXP LPC32XX GPIO support" 386 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 387 help 388 Select this option to enable GPIO driver for 389 NXP LPC32XX devices. 390 391config GPIO_MB86S7X 392 tristate "GPIO support for Fujitsu MB86S7x Platforms" 393 help 394 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 395 396config GPIO_MENZ127 397 tristate "MEN 16Z127 GPIO support" 398 depends on MCB 399 select GPIO_GENERIC 400 help 401 Say yes here to support the MEN 16Z127 GPIO Controller. 402 403config GPIO_MM_LANTIQ 404 bool "Lantiq Memory mapped GPIOs" 405 depends on LANTIQ && SOC_XWAY 406 help 407 This enables support for memory mapped GPIOs on the External Bus Unit 408 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 409 created by attaching a 16-bit latch to the bus. 410 411config GPIO_MPC5200 412 def_bool y 413 depends on PPC_MPC52xx 414 415config GPIO_MPC8XXX 416 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 417 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 418 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 419 COMPILE_TEST 420 select GPIO_GENERIC 421 select IRQ_DOMAIN 422 help 423 Say Y here if you're going to use hardware that connects to the 424 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 425 426config GPIO_MT7621 427 bool "Mediatek MT7621 GPIO Support" 428 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 429 depends on OF_GPIO 430 select GPIO_GENERIC 431 select GPIOLIB_IRQCHIP 432 help 433 Say yes here to support the Mediatek MT7621 SoC GPIO device. 434 435config GPIO_MVEBU 436 def_bool y 437 depends on PLAT_ORION || ARCH_MVEBU 438 depends on OF_GPIO 439 select GENERIC_IRQ_CHIP 440 select REGMAP_MMIO 441 442config GPIO_MXC 443 tristate "i.MX GPIO support" 444 depends on ARCH_MXC || COMPILE_TEST 445 select GPIO_GENERIC 446 select GENERIC_IRQ_CHIP 447 448config GPIO_MXS 449 bool "Freescale MXS GPIO support" if COMPILE_TEST 450 depends on ARCH_MXS || COMPILE_TEST 451 default y if ARCH_MXS 452 select GPIO_GENERIC 453 select GENERIC_IRQ_CHIP 454 455config GPIO_OCTEON 456 tristate "Cavium OCTEON GPIO" 457 depends on CAVIUM_OCTEON_SOC 458 default y 459 help 460 Say yes here to support the on-chip GPIO lines on the OCTEON 461 family of SOCs. 462 463config GPIO_OMAP 464 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 465 default y if ARCH_OMAP 466 depends on ARM 467 select GENERIC_IRQ_CHIP 468 select GPIOLIB_IRQCHIP 469 help 470 Say yes here to enable GPIO support for TI OMAP SoCs. 471 472config GPIO_PL061 473 tristate "PrimeCell PL061 GPIO support" 474 depends on ARM_AMBA 475 select IRQ_DOMAIN 476 select GPIOLIB_IRQCHIP 477 help 478 Say yes here to support the PrimeCell PL061 GPIO device. 479 480config GPIO_PMIC_EIC_SPRD 481 tristate "Spreadtrum PMIC EIC support" 482 depends on MFD_SC27XX_PMIC || COMPILE_TEST 483 depends on OF_GPIO 484 select GPIOLIB_IRQCHIP 485 help 486 Say yes here to support Spreadtrum PMIC EIC device. 487 488config GPIO_PXA 489 bool "PXA GPIO support" 490 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 491 help 492 Say yes here to support the PXA GPIO device. 493 494config GPIO_RCAR 495 tristate "Renesas R-Car and RZ/G GPIO support" 496 depends on ARCH_RENESAS || COMPILE_TEST 497 select GPIOLIB_IRQCHIP 498 help 499 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 500 501config GPIO_RDA 502 bool "RDA Micro GPIO controller support" 503 depends on ARCH_RDA || COMPILE_TEST 504 depends on OF_GPIO 505 select GPIO_GENERIC 506 select GPIOLIB_IRQCHIP 507 help 508 Say Y here to support RDA Micro GPIO controller. 509 510config GPIO_REALTEK_OTTO 511 tristate "Realtek Otto GPIO support" 512 depends on MACH_REALTEK_RTL 513 default MACH_REALTEK_RTL 514 select GPIO_GENERIC 515 select GPIOLIB_IRQCHIP 516 help 517 The GPIO controller on the Otto MIPS platform supports up to two 518 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 519 are grouped in four 8-bit wide ports. 520 521 When built as a module, the module will be called realtek_otto_gpio. 522 523config GPIO_REG 524 bool 525 help 526 A 32-bit single register GPIO fixed in/out implementation. This 527 can be used to represent any register as a set of GPIO signals. 528 529config GPIO_ROCKCHIP 530 tristate "Rockchip GPIO support" 531 depends on ARCH_ROCKCHIP || COMPILE_TEST 532 select GENERIC_IRQ_CHIP 533 select GPIOLIB_IRQCHIP 534 default ARCH_ROCKCHIP 535 help 536 Say yes here to support GPIO on Rockchip SoCs. 537 538config GPIO_SAMA5D2_PIOBU 539 tristate "SAMA5D2 PIOBU GPIO support" 540 depends on MFD_SYSCON 541 depends on OF_GPIO 542 depends on ARCH_AT91 || COMPILE_TEST 543 select GPIO_SYSCON 544 help 545 Say yes here to use the PIOBU pins as GPIOs. 546 547 PIOBU pins on the SAMA5D2 can be used as GPIOs. 548 The difference from regular GPIOs is that they 549 maintain their value during backup/self-refresh. 550 551config GPIO_SIFIVE 552 bool "SiFive GPIO support" 553 depends on OF_GPIO 554 select IRQ_DOMAIN_HIERARCHY 555 select GPIO_GENERIC 556 select GPIOLIB_IRQCHIP 557 select REGMAP_MMIO 558 help 559 Say yes here to support the GPIO device on SiFive SoCs. 560 561config GPIO_SIOX 562 tristate "SIOX GPIO support" 563 depends on SIOX 564 select GPIOLIB_IRQCHIP 565 help 566 Say yes here to support SIOX I/O devices. These are units connected 567 via a SIOX bus and have a number of fixed-direction I/O lines. 568 569config GPIO_SNPS_CREG 570 bool "Synopsys GPIO via CREG (Control REGisters) driver" 571 depends on ARC || COMPILE_TEST 572 depends on OF_GPIO 573 help 574 This driver supports GPIOs via CREG on various Synopsys SoCs. 575 This is a single-register MMIO GPIO driver for complex cases 576 where only several fields in register belong to GPIO lines and 577 each GPIO line owns a field with different length and on/off value. 578 579config GPIO_SPEAR_SPICS 580 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 581 depends on PLAT_SPEAR 582 select GENERIC_IRQ_CHIP 583 help 584 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 585 586config GPIO_SPRD 587 tristate "Spreadtrum GPIO support" 588 depends on ARCH_SPRD || COMPILE_TEST 589 depends on OF_GPIO 590 select GPIOLIB_IRQCHIP 591 help 592 Say yes here to support Spreadtrum GPIO device. 593 594config GPIO_STP_XWAY 595 bool "XWAY STP GPIOs" 596 depends on SOC_XWAY || COMPILE_TEST 597 depends on OF_GPIO 598 help 599 This enables support for the Serial To Parallel (STP) unit found on 600 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 601 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 602 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 603 phy status. 604 605config GPIO_SYSCON 606 tristate "GPIO based on SYSCON" 607 depends on MFD_SYSCON && OF 608 help 609 Say yes here to support GPIO functionality though SYSCON driver. 610 611config GPIO_TB10X 612 bool 613 select GPIO_GENERIC 614 select GENERIC_IRQ_CHIP 615 select OF_GPIO 616 617config GPIO_TEGRA 618 tristate "NVIDIA Tegra GPIO support" 619 default ARCH_TEGRA 620 depends on ARCH_TEGRA || COMPILE_TEST 621 depends on OF_GPIO 622 select GPIOLIB_IRQCHIP 623 select IRQ_DOMAIN_HIERARCHY 624 help 625 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 626 627config GPIO_TEGRA186 628 tristate "NVIDIA Tegra186 GPIO support" 629 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 630 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 631 depends on OF_GPIO 632 select GPIOLIB_IRQCHIP 633 select IRQ_DOMAIN_HIERARCHY 634 help 635 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 636 637config GPIO_TS4800 638 tristate "TS-4800 DIO blocks and compatibles" 639 depends on OF_GPIO 640 depends on SOC_IMX51 || COMPILE_TEST 641 select GPIO_GENERIC 642 help 643 This driver support TS-4800 FPGA GPIO controllers. 644 645config GPIO_THUNDERX 646 tristate "Cavium ThunderX/OCTEON-TX GPIO" 647 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 648 depends on PCI_MSI 649 select GPIOLIB_IRQCHIP 650 select IRQ_DOMAIN_HIERARCHY 651 select IRQ_FASTEOI_HIERARCHY_HANDLERS 652 help 653 Say yes here to support the on-chip GPIO lines on the ThunderX 654 and OCTEON-TX families of SoCs. 655 656config GPIO_UNIPHIER 657 tristate "UniPhier GPIO support" 658 depends on ARCH_UNIPHIER || COMPILE_TEST 659 depends on OF_GPIO 660 select IRQ_DOMAIN_HIERARCHY 661 help 662 Say yes here to support UniPhier GPIOs. 663 664config GPIO_VF610 665 def_bool y 666 depends on ARCH_MXC 667 select GPIOLIB_IRQCHIP 668 help 669 Say yes here to support i.MX or Vybrid vf610 GPIOs. 670 671config GPIO_VISCONTI 672 tristate "Toshiba Visconti GPIO support" 673 depends on ARCH_VISCONTI || COMPILE_TEST 674 depends on OF_GPIO 675 select GPIOLIB_IRQCHIP 676 select GPIO_GENERIC 677 select IRQ_DOMAIN_HIERARCHY 678 help 679 Say yes here to support GPIO on Tohisba Visconti. 680 681config GPIO_VX855 682 tristate "VIA VX855/VX875 GPIO" 683 depends on (X86 || COMPILE_TEST) && PCI 684 select MFD_CORE 685 select MFD_VX855 686 help 687 Support access to the VX855/VX875 GPIO lines through the GPIO library. 688 689 This driver provides common support for accessing the device. 690 Additional drivers must be enabled in order to use the 691 functionality of the device. 692 693config GPIO_WCD934X 694 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 GPIO controller driver" 695 depends on MFD_WCD934X && OF_GPIO 696 help 697 This driver is to support GPIO block found on the Qualcomm Technologies 698 Inc WCD9340/WCD9341 Audio Codec. 699 700config GPIO_XGENE 701 bool "APM X-Gene GPIO controller support" 702 depends on ARM64 && OF_GPIO 703 help 704 This driver is to support the GPIO block within the APM X-Gene SoC 705 platform's generic flash controller. The GPIO pins are muxed with 706 the generic flash controller's address and data pins. Say yes 707 here to enable the GFC GPIO functionality. 708 709config GPIO_XGENE_SB 710 tristate "APM X-Gene GPIO standby controller support" 711 depends on (ARCH_XGENE || COMPILE_TEST) 712 select GPIO_GENERIC 713 select GPIOLIB_IRQCHIP 714 select IRQ_DOMAIN_HIERARCHY 715 help 716 This driver supports the GPIO block within the APM X-Gene 717 Standby Domain. Say yes here to enable the GPIO functionality. 718 719config GPIO_XILINX 720 tristate "Xilinx GPIO support" 721 select GPIOLIB_IRQCHIP 722 depends on OF_GPIO 723 help 724 Say yes here to support the Xilinx FPGA GPIO device. 725 726config GPIO_XLP 727 tristate "Cavium ThunderX2 GPIO support" 728 depends on ARCH_THUNDER2 || COMPILE_TEST 729 select GPIOLIB_IRQCHIP 730 help 731 This driver provides support for GPIO interface on Cavium's ThunderX2 732 CN99XX SoCs (Originally from Netlogic XLP). 733 734 If unsure, say N. 735 736config GPIO_XTENSA 737 bool "Xtensa GPIO32 support" 738 depends on XTENSA 739 depends on HAVE_XTENSA_GPIO32 740 depends on !SMP 741 help 742 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 743 and EXPSTATE (output) ports. 744 745config GPIO_ZEVIO 746 bool "LSI ZEVIO SoC memory mapped GPIOs" 747 depends on ARM 748 help 749 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 750 751config GPIO_ZYNQ 752 tristate "Xilinx Zynq GPIO support" 753 depends on ARCH_ZYNQ || ARCH_ZYNQMP 754 select GPIOLIB_IRQCHIP 755 help 756 Say yes here to support Xilinx Zynq GPIO controller. 757 758config GPIO_ZYNQMP_MODEPIN 759 tristate "ZynqMP ps-mode pin GPIO configuration driver" 760 depends on ZYNQMP_FIRMWARE 761 default ZYNQMP_FIRMWARE 762 help 763 Say yes here to support the ZynqMP ps-mode pin GPIO configuration 764 driver. 765 766 This ps-mode pin GPIO driver is based on GPIO framework. PS_MODE 767 is 4-bits boot mode pins. It sets and gets the status of 768 the ps-mode pin. Every pin can be configured as input/output. 769 770config GPIO_LOONGSON1 771 tristate "Loongson1 GPIO support" 772 depends on MACH_LOONGSON32 773 select GPIO_GENERIC 774 help 775 Say Y or M here to support GPIO on Loongson1 SoCs. 776 777config GPIO_AMD_FCH 778 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 779 help 780 This option enables driver for GPIO on AMD's Fusion Controller Hub, 781 as found on G-series SOCs (e.g. GX-412TC). 782 783 Note: This driver doesn't register itself automatically, as it 784 needs to be provided with platform-specific configuration. 785 (See e.g. CONFIG_PCENGINES_APU2.) 786 787config GPIO_MSC313 788 bool "MStar MSC313 GPIO support" 789 depends on ARCH_MSTARV7 790 default ARCH_MSTARV7 791 select GPIOLIB_IRQCHIP 792 select IRQ_DOMAIN_HIERARCHY 793 help 794 Say Y here to support the main GPIO block on MStar/SigmaStar 795 ARMv7-based SoCs. 796 797config GPIO_IDT3243X 798 tristate "IDT 79RC3243X GPIO support" 799 depends on MIKROTIK_RB532 || COMPILE_TEST 800 select GPIO_GENERIC 801 select GPIOLIB_IRQCHIP 802 help 803 Select this option to enable GPIO driver for 804 IDT 79RC3243X-based devices like Mikrotik RB532. 805 806 To compile this driver as a module, choose M here: the module will 807 be called gpio-idt3243x. 808 809endmenu 810 811menu "Port-mapped I/O GPIO drivers" 812 depends on X86 # Unconditional I/O space access 813 814config GPIO_I8255 815 tristate 816 select GPIO_REGMAP 817 help 818 Enables support for the i8255 interface library functions. The i8255 819 interface library provides functions to facilitate communication with 820 interfaces compatible with the venerable Intel 8255 Programmable 821 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 822 in the early 1970s but compatible interfaces are nowadays typically 823 found embedded in larger VLSI processing chips and FPGA components. 824 825 If built as a module its name will be gpio-i8255. 826 827config GPIO_104_DIO_48E 828 tristate "ACCES 104-DIO-48E GPIO support" 829 depends on PC104 830 select ISA_BUS_API 831 select REGMAP_MMIO 832 select REGMAP_IRQ 833 select GPIOLIB_IRQCHIP 834 select GPIO_I8255 835 help 836 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 837 104-DIO-24E). The base port addresses for the devices may be 838 configured via the base module parameter. The interrupt line numbers 839 for the devices may be configured via the irq module parameter. 840 841config GPIO_104_IDIO_16 842 tristate "ACCES 104-IDIO-16 GPIO support" 843 depends on PC104 844 select ISA_BUS_API 845 select GPIOLIB_IRQCHIP 846 select GPIO_IDIO_16 847 help 848 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 849 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 850 base port addresses for the devices may be configured via the base 851 module parameter. The interrupt line numbers for the devices may be 852 configured via the irq module parameter. 853 854config GPIO_104_IDI_48 855 tristate "ACCES 104-IDI-48 GPIO support" 856 depends on PC104 857 select ISA_BUS_API 858 select REGMAP_MMIO 859 select REGMAP_IRQ 860 select GPIOLIB_IRQCHIP 861 select GPIO_REGMAP 862 help 863 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 864 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 865 the devices may be configured via the base module parameter. The 866 interrupt line numbers for the devices may be configured via the irq 867 module parameter. 868 869config GPIO_F7188X 870 tristate "Fintek and Nuvoton Super-I/O GPIO support" 871 help 872 This option enables support for GPIOs found on Fintek Super-I/O 873 chips F71869, F71869A, F71882FG, F71889F and F81866. 874 As well as Nuvoton Super-I/O chip NCT6116D. 875 876 To compile this driver as a module, choose M here: the module will 877 be called f7188x-gpio. 878 879config GPIO_GPIO_MM 880 tristate "Diamond Systems GPIO-MM GPIO support" 881 depends on PC104 882 select ISA_BUS_API 883 select REGMAP_MMIO 884 select GPIO_I8255 885 help 886 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 887 888 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 889 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 890 support for these 48 channels of digital I/O. 891 892 The base port addresses for the devices may be configured via the base 893 array module parameter. 894 895config GPIO_IT87 896 tristate "IT87xx GPIO support" 897 help 898 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 899 900 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 901 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 902 well. 903 904 To compile this driver as a module, choose M here: the module will 905 be called gpio_it87. 906 907config GPIO_SCH 908 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 909 depends on (X86 || COMPILE_TEST) && ACPI 910 depends on LPC_SCH 911 select GPIOLIB_IRQCHIP 912 help 913 Say yes here to support GPIO interface on Intel Poulsbo SCH, 914 Intel Tunnel Creek processor, Intel Centerton processor or 915 Intel Quark X1000 SoC. 916 917 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 918 powered by the core power rail and are turned off during sleep 919 modes (S3 and higher). The remaining four GPIOs are powered by 920 the Intel SCH suspend power supply. These GPIOs remain 921 active during S3. The suspend-powered GPIOs can be used to wake the 922 system from the Suspend-to-RAM state. 923 924 The Intel Tunnel Creek processor has 5 GPIOs powered by the 925 core power rail and 9 from suspend power supply. 926 927 The Intel Centerton processor has a total of 30 GPIO pins. 928 Twenty-one are powered by the core power rail and 9 from the 929 suspend power supply. 930 931 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 932 power well and 6 from the suspend power well. 933 934config GPIO_SCH311X 935 tristate "SMSC SCH311x SuperI/O GPIO" 936 help 937 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 938 SCH3116 "Super I/O" chipsets. 939 940 To compile this driver as a module, choose M here: the module will 941 be called gpio-sch311x. 942 943config GPIO_TS5500 944 tristate "TS-5500 DIO blocks and compatibles" 945 depends on TS5500 || COMPILE_TEST 946 help 947 This driver supports Digital I/O exposed by pin blocks found on some 948 Technologic Systems platforms. It includes, but is not limited to, 3 949 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 950 LCD port. 951 952config GPIO_WINBOND 953 tristate "Winbond Super I/O GPIO support" 954 select ISA_BUS_API 955 help 956 This option enables support for GPIOs found on Winbond Super I/O 957 chips. 958 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 959 supported. 960 961 You will need to provide a module parameter "gpios", or a 962 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 963 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 964 965 To compile this driver as a module, choose M here: the module will 966 be called gpio-winbond. 967 968config GPIO_WS16C48 969 tristate "WinSystems WS16C48 GPIO support" 970 select ISA_BUS_API 971 select GPIOLIB_IRQCHIP 972 help 973 Enables GPIO support for the WinSystems WS16C48. The base port 974 addresses for the devices may be configured via the base module 975 parameter. The interrupt line numbers for the devices may be 976 configured via the irq module parameter. 977 978endmenu 979 980menu "I2C GPIO expanders" 981 depends on I2C 982 983config GPIO_ADNP 984 tristate "Avionic Design N-bit GPIO expander" 985 depends on OF_GPIO 986 select GPIOLIB_IRQCHIP 987 help 988 This option enables support for N GPIOs found on Avionic Design 989 I2C GPIO expanders. The register space will be extended by powers 990 of two, so the controller will need to accommodate for that. For 991 example: if a controller provides 48 pins, 6 registers will be 992 enough to represent all pins, but the driver will assume a 993 register layout for 64 pins (8 registers). 994 995config GPIO_GW_PLD 996 tristate "Gateworks PLD GPIO Expander" 997 depends on OF_GPIO 998 help 999 Say yes here to provide access to the Gateworks I2C PLD GPIO 1000 Expander. This is used at least on the Cambria GW2358-4. 1001 1002config GPIO_MAX7300 1003 tristate "Maxim MAX7300 GPIO expander" 1004 select GPIO_MAX730X 1005 help 1006 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1007 1008config GPIO_MAX732X 1009 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1010 help 1011 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1012 Port Expanders. Each IO port on these chips has a fixed role of 1013 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1014 Input and Output (designed by 'P'). The combinations are listed 1015 below: 1016 1017 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1018 max7322 (4I4O), max7323 (4P4O) 1019 1020 16 bits: max7324 (8I8O), max7325 (8P8O), 1021 max7326 (4I12O), max7327 (4P12O) 1022 1023 Board setup code must specify the model to use, and the start 1024 number for these GPIOs. 1025 1026config GPIO_MAX732X_IRQ 1027 bool "Interrupt controller support for MAX732x" 1028 depends on GPIO_MAX732X=y 1029 select GPIOLIB_IRQCHIP 1030 help 1031 Say yes here to enable the max732x to be used as an interrupt 1032 controller. It requires the driver to be built in the kernel. 1033 1034config GPIO_PCA953X 1035 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1036 select REGMAP_I2C 1037 help 1038 Say yes here to provide access to several register-oriented 1039 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1040 models include: 1041 1042 4 bits: pca9536, pca9537 1043 1044 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1045 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1046 1047 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1048 tca6416 1049 1050 24 bits: tca6424 1051 1052 40 bits: pca9505, pca9698 1053 1054config GPIO_PCA953X_IRQ 1055 bool "Interrupt controller support for PCA953x" 1056 depends on GPIO_PCA953X 1057 select GPIOLIB_IRQCHIP 1058 help 1059 Say yes here to enable the pca953x to be used as an interrupt 1060 controller. 1061 1062config GPIO_PCA9570 1063 tristate "PCA9570 4-Bit I2C GPO expander" 1064 help 1065 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1066 1067 To compile this driver as a module, choose M here: the module will 1068 be called gpio-pca9570. 1069 1070config GPIO_PCF857X 1071 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1072 select GPIOLIB_IRQCHIP 1073 select IRQ_DOMAIN 1074 help 1075 Say yes here to provide access to most "quasi-bidirectional" I2C 1076 GPIO expanders used for additional digital outputs or inputs. 1077 Most of these parts are from NXP, though TI is a second source for 1078 some of them. Compatible models include: 1079 1080 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1081 pca9670, pca9672, pca9674, pca9674a, 1082 max7328, max7329 1083 1084 16 bits: pcf8575, pcf8575c, pca8575, 1085 pca9671, pca9673, pca9675 1086 1087 Your board setup code will need to declare the expanders in 1088 use, and assign numbers to the GPIOs they expose. Those GPIOs 1089 can then be used from drivers and other kernel code, just like 1090 other GPIOs, but only accessible from task contexts. 1091 1092 This driver provides an in-kernel interface to those GPIOs using 1093 platform-neutral GPIO calls. 1094 1095config GPIO_TPIC2810 1096 tristate "TPIC2810 8-Bit I2C GPO expander" 1097 help 1098 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1099 1100 To compile this driver as a module, choose M here: the module will 1101 be called gpio-tpic2810. 1102 1103config GPIO_TS4900 1104 tristate "Technologic Systems FPGA I2C GPIO" 1105 depends on SOC_IMX6 || COMPILE_TEST 1106 select REGMAP_I2C 1107 help 1108 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1109 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1110 1111endmenu 1112 1113menu "MFD GPIO expanders" 1114 1115config GPIO_ADP5520 1116 tristate "GPIO Support for ADP5520 PMIC" 1117 depends on PMIC_ADP5520 1118 help 1119 This option enables support for on-chip GPIO found 1120 on Analog Devices ADP5520 PMICs. 1121 1122config GPIO_ALTERA_A10SR 1123 tristate "Altera Arria10 System Resource GPIO" 1124 depends on MFD_ALTERA_A10SR 1125 help 1126 Driver for Arria10 Development Kit GPIO expansion which 1127 includes reads of pushbuttons and DIP switches as well 1128 as writes to LEDs. 1129 1130config GPIO_ARIZONA 1131 tristate "Wolfson Microelectronics Arizona class devices" 1132 depends on MFD_ARIZONA 1133 help 1134 Support for GPIOs on Wolfson Arizona class devices. 1135 1136config GPIO_BD71815 1137 tristate "ROHM BD71815 PMIC GPIO support" 1138 depends on MFD_ROHM_BD71828 1139 help 1140 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1141 available on the ROHM PMIC. 1142 1143 This driver can also be built as a module. If so, the module 1144 will be called gpio-bd71815. 1145 1146config GPIO_BD71828 1147 tristate "ROHM BD71828 GPIO support" 1148 depends on MFD_ROHM_BD71828 1149 help 1150 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1151 available on the ROHM PMIC in total. The GPIOs are limited to 1152 outputs only and pins must be configured to GPIO outputs by 1153 OTP. Enable this only if you want to use these pins as outputs. 1154 1155 This driver can also be built as a module. If so, the module 1156 will be called gpio-bd71828. 1157 1158config GPIO_BD9571MWV 1159 tristate "ROHM BD9571 GPIO support" 1160 depends on MFD_BD9571MWV 1161 help 1162 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1163 available on the ROHM PMIC in total, both of which can also 1164 generate interrupts. 1165 1166 This driver can also be built as a module. If so, the module 1167 will be called gpio-bd9571mwv. 1168 1169config GPIO_CRYSTAL_COVE 1170 tristate "GPIO support for Crystal Cove PMIC" 1171 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1172 select GPIOLIB_IRQCHIP 1173 help 1174 Support for GPIO pins on Crystal Cove PMIC. 1175 1176 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1177 inside. 1178 1179 This driver can also be built as a module. If so, the module will be 1180 called gpio-crystalcove. 1181 1182config GPIO_CS5535 1183 tristate "AMD CS5535/CS5536 GPIO support" 1184 depends on X86 || MIPS || COMPILE_TEST 1185 depends on MFD_CS5535 1186 help 1187 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1188 can be used for quite a number of things. The CS5535/6 is found on 1189 AMD Geode and Lemote Yeeloong devices. 1190 1191 If unsure, say N. 1192 1193config GPIO_DA9052 1194 tristate "Dialog DA9052 GPIO" 1195 depends on PMIC_DA9052 1196 help 1197 Say yes here to enable the GPIO driver for the DA9052 chip. 1198 1199config GPIO_DA9055 1200 tristate "Dialog Semiconductor DA9055 GPIO" 1201 depends on MFD_DA9055 1202 help 1203 Say yes here to enable the GPIO driver for the DA9055 chip. 1204 1205 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1206 be controlled by this driver. 1207 1208 If driver is built as a module it will be called gpio-da9055. 1209 1210config GPIO_DLN2 1211 tristate "Diolan DLN2 GPIO support" 1212 depends on MFD_DLN2 1213 select GPIOLIB_IRQCHIP 1214 1215 help 1216 Select this option to enable GPIO driver for the Diolan DLN2 1217 board. 1218 1219 This driver can also be built as a module. If so, the module 1220 will be called gpio-dln2. 1221 1222config HTC_EGPIO 1223 bool "HTC EGPIO support" 1224 depends on ARM 1225 help 1226 This driver supports the CPLD egpio chip present on 1227 several HTC phones. It provides basic support for input 1228 pins, output pins, and IRQs. 1229 1230config GPIO_JANZ_TTL 1231 tristate "Janz VMOD-TTL Digital IO Module" 1232 depends on MFD_JANZ_CMODIO 1233 help 1234 This enables support for the Janz VMOD-TTL Digital IO module. 1235 This driver provides support for driving the pins in output 1236 mode only. Input mode is not supported. 1237 1238config GPIO_KEMPLD 1239 tristate "Kontron ETX / COMexpress GPIO" 1240 depends on MFD_KEMPLD 1241 help 1242 This enables support for the PLD GPIO interface on some Kontron ETX 1243 and COMexpress (ETXexpress) modules. 1244 1245 This driver can also be built as a module. If so, the module will be 1246 called gpio-kempld. 1247 1248config GPIO_LP3943 1249 tristate "TI/National Semiconductor LP3943 GPIO expander" 1250 depends on MFD_LP3943 1251 help 1252 GPIO driver for LP3943 MFD. 1253 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1254 Open drain outputs are required for this usage. 1255 1256config GPIO_LP873X 1257 tristate "TI LP873X GPO" 1258 depends on MFD_TI_LP873X 1259 help 1260 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1261 on LP873X PMICs. 1262 1263 This driver can also be built as a module. If so, the module will be 1264 called gpio-lp873x. 1265 1266config GPIO_LP87565 1267 tristate "TI LP87565 GPIO" 1268 depends on MFD_TI_LP87565 1269 help 1270 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1271 on LP87565 PMICs. 1272 1273 This driver can also be built as a module. If so, the module will be 1274 called gpio-lp87565. 1275 1276config GPIO_MADERA 1277 tristate "Cirrus Logic Madera class codecs" 1278 depends on PINCTRL_MADERA 1279 help 1280 Support for GPIOs on Cirrus Logic Madera class codecs. 1281 1282config GPIO_MAX77620 1283 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1284 depends on MFD_MAX77620 1285 select GPIOLIB_IRQCHIP 1286 help 1287 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1288 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1289 driver also provides interrupt support for each of the GPIOs. 1290 Say yes here to enable the max77620 to be used as GPIO controller. 1291 1292config GPIO_MAX77650 1293 tristate "Maxim MAX77650/77651 GPIO support" 1294 depends on MFD_MAX77650 1295 help 1296 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1297 These chips have a single pin that can be configured as GPIO. 1298 1299config GPIO_PALMAS 1300 bool "TI PALMAS series PMICs GPIO" 1301 depends on MFD_PALMAS 1302 help 1303 Select this option to enable GPIO driver for the TI PALMAS 1304 series chip family. 1305 1306config GPIO_RC5T583 1307 bool "RICOH RC5T583 GPIO" 1308 depends on MFD_RC5T583 1309 help 1310 Select this option to enable GPIO driver for the Ricoh RC5T583 1311 chip family. 1312 This driver provides the support for driving/reading the GPIO pins 1313 of RC5T583 device through standard GPIO library. 1314 1315config GPIO_SL28CPLD 1316 tristate "Kontron sl28cpld GPIO support" 1317 depends on MFD_SL28CPLD || COMPILE_TEST 1318 select GPIO_REGMAP 1319 select GPIOLIB_IRQCHIP 1320 select REGMAP_IRQ 1321 help 1322 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1323 1324 This driver can also be built as a module. If so, the module will be 1325 called gpio-sl28cpld. 1326 1327config GPIO_STMPE 1328 bool "STMPE GPIOs" 1329 depends on MFD_STMPE 1330 depends on OF_GPIO 1331 select GPIOLIB_IRQCHIP 1332 help 1333 This enables support for the GPIOs found on the STMPE I/O 1334 Expanders. 1335 1336config GPIO_TC3589X 1337 bool "TC3589X GPIOs" 1338 depends on MFD_TC3589X 1339 depends on OF_GPIO 1340 select GPIOLIB_IRQCHIP 1341 help 1342 This enables support for the GPIOs found on the TC3589X 1343 I/O Expander. 1344 1345config GPIO_TIMBERDALE 1346 bool "Support for timberdale GPIO IP" 1347 depends on MFD_TIMBERDALE 1348 help 1349 Add support for the GPIO IP in the timberdale FPGA. 1350 1351config GPIO_TN48M_CPLD 1352 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1353 depends on MFD_TN48M_CPLD 1354 select GPIO_REGMAP 1355 help 1356 This enables support for the GPIOs found on the Delta 1357 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1358 they are input-only or output-only type. 1359 1360 This driver can also be built as a module. If so, the 1361 module will be called gpio-tn48m. 1362 1363config GPIO_TPS65086 1364 tristate "TI TPS65086 GPO" 1365 depends on MFD_TPS65086 1366 help 1367 This driver supports the GPO on TI TPS65086x PMICs. 1368 1369config GPIO_TPS65218 1370 tristate "TPS65218 GPIO" 1371 depends on MFD_TPS65218 1372 help 1373 Select this option to enable GPIO driver for the TPS65218 1374 chip family. 1375 1376config GPIO_TPS6586X 1377 bool "TPS6586X GPIO" 1378 depends on MFD_TPS6586X 1379 help 1380 Select this option to enable GPIO driver for the TPS6586X 1381 chip family. 1382 1383config GPIO_TPS65910 1384 bool "TPS65910 GPIO" 1385 depends on MFD_TPS65910 1386 help 1387 Select this option to enable GPIO driver for the TPS65910 1388 chip family. 1389 1390config GPIO_TPS65912 1391 tristate "TI TPS65912 GPIO" 1392 depends on MFD_TPS65912 1393 help 1394 This driver supports TPS65912 GPIO chip. 1395 1396config GPIO_TPS68470 1397 tristate "TPS68470 GPIO" 1398 depends on INTEL_SKL_INT3472 1399 help 1400 Select this option to enable GPIO driver for the TPS68470 1401 chip family. 1402 There are 7 GPIOs and few sensor-related GPIOs supported 1403 by the TPS68470. While the 7 GPIOs can be configured as 1404 input or output as appropriate, the sensor related GPIOs 1405 are "output only" GPIOs. 1406 1407config GPIO_TQMX86 1408 tristate "TQ-Systems QTMX86 GPIO" 1409 depends on MFD_TQMX86 || COMPILE_TEST 1410 depends on HAS_IOPORT_MAP 1411 select GPIOLIB_IRQCHIP 1412 help 1413 This driver supports GPIO on the TQMX86 IO controller. 1414 1415config GPIO_TWL4030 1416 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1417 depends on TWL4030_CORE 1418 help 1419 Say yes here to access the GPIO signals of various multi-function 1420 power management chips from Texas Instruments. 1421 1422config GPIO_TWL6040 1423 tristate "TWL6040 GPO" 1424 depends on TWL6040_CORE 1425 help 1426 Say yes here to access the GPO signals of twl6040 1427 audio chip from Texas Instruments. 1428 1429config GPIO_WHISKEY_COVE 1430 tristate "GPIO support for Whiskey Cove PMIC" 1431 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1432 select GPIOLIB_IRQCHIP 1433 help 1434 Support for GPIO pins on Whiskey Cove PMIC. 1435 1436 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1437 inside. 1438 1439 This driver can also be built as a module. If so, the module will be 1440 called gpio-wcove. 1441 1442config GPIO_WM831X 1443 tristate "WM831x GPIOs" 1444 depends on MFD_WM831X 1445 help 1446 Say yes here to access the GPIO signals of WM831x power management 1447 chips from Wolfson Microelectronics. 1448 1449config GPIO_WM8350 1450 tristate "WM8350 GPIOs" 1451 depends on MFD_WM8350 1452 help 1453 Say yes here to access the GPIO signals of WM8350 power management 1454 chips from Wolfson Microelectronics. 1455 1456config GPIO_WM8994 1457 tristate "WM8994 GPIOs" 1458 depends on MFD_WM8994 1459 help 1460 Say yes here to access the GPIO signals of WM8994 audio hub 1461 CODECs from Wolfson Microelectronics. 1462 1463endmenu 1464 1465menu "PCI GPIO expanders" 1466 depends on PCI 1467 1468config GPIO_AMD8111 1469 tristate "AMD 8111 GPIO driver" 1470 depends on X86 || COMPILE_TEST 1471 depends on HAS_IOPORT_MAP 1472 help 1473 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1474 1475 Note that usually system firmware/ACPI handles GPIO pins on their 1476 own and users might easily break their systems with uncareful usage 1477 of this driver! 1478 1479 If unsure, say N 1480 1481config GPIO_BT8XX 1482 tristate "BT8XX GPIO abuser" 1483 depends on VIDEO_BT848=n 1484 help 1485 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1486 as a cheap PCI GPIO card. 1487 1488 This chip can be found on Miro, Hauppauge and STB TV-cards. 1489 1490 The card needs to be physically altered for using it as a 1491 GPIO card. For more information on how to build a GPIO card 1492 from a BT8xx TV card, see the documentation file at 1493 Documentation/driver-api/gpio/bt8xxgpio.rst 1494 1495 If unsure, say N. 1496 1497config GPIO_MERRIFIELD 1498 tristate "Intel Merrifield GPIO support" 1499 depends on X86_INTEL_MID 1500 select GPIOLIB_IRQCHIP 1501 help 1502 Say Y here to support Intel Merrifield GPIO. 1503 1504config GPIO_MLXBF 1505 tristate "Mellanox BlueField SoC GPIO" 1506 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1507 select GPIO_GENERIC 1508 help 1509 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1510 1511config GPIO_MLXBF2 1512 tristate "Mellanox BlueField 2 SoC GPIO" 1513 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1514 select GPIO_GENERIC 1515 select GPIOLIB_IRQCHIP 1516 help 1517 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1518 1519config GPIO_ML_IOH 1520 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1521 depends on X86 || COMPILE_TEST 1522 select GENERIC_IRQ_CHIP 1523 help 1524 ML7213 is companion chip for Intel Atom E6xx series. 1525 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1526 Hub) which is for IVI (In-Vehicle Infotainment) use. 1527 This driver can access the IOH's GPIO device. 1528 1529config GPIO_PCH 1530 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1531 depends on X86_32 || MIPS || COMPILE_TEST 1532 select GENERIC_IRQ_CHIP 1533 help 1534 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1535 which is an IOH (Input/Output Hub) for x86 embedded processor. 1536 This driver can access PCH GPIO device. 1537 1538 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1539 Output Hub), ML7223 and ML7831. 1540 ML7223 IOH is for MP (Media Phone) use. 1541 ML7831 IOH is for general purpose use. 1542 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1543 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1544 1545config GPIO_PCI_IDIO_16 1546 tristate "ACCES PCI-IDIO-16 GPIO support" 1547 select GPIOLIB_IRQCHIP 1548 select GPIO_IDIO_16 1549 help 1550 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1551 generated when any of the inputs change state (low to high or high to 1552 low). Input filter control is not supported by this driver, and the 1553 input filters are deactivated by this driver. 1554 1555config GPIO_PCIE_IDIO_24 1556 tristate "ACCES PCIe-IDIO-24 GPIO support" 1557 select GPIOLIB_IRQCHIP 1558 help 1559 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1560 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1561 when any of the inputs change state (low to high or high to low). 1562 Input filter control is not supported by this driver, and the input 1563 filters are deactivated by this driver. 1564 1565config GPIO_RDC321X 1566 tristate "RDC R-321x GPIO support" 1567 select MFD_CORE 1568 select MFD_RDC321X 1569 help 1570 Support for the RDC R321x SoC GPIOs over southbridge 1571 PCI configuration space. 1572 1573config GPIO_SODAVILLE 1574 bool "Intel Sodaville GPIO support" 1575 depends on X86 && OF 1576 select GPIO_GENERIC 1577 select GENERIC_IRQ_CHIP 1578 help 1579 Say Y here to support Intel Sodaville GPIO. 1580 1581endmenu 1582 1583menu "SPI GPIO expanders" 1584 depends on SPI_MASTER 1585 1586config GPIO_74X164 1587 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1588 depends on OF_GPIO 1589 help 1590 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1591 shift registers. This driver can be used to provide access 1592 to more GPIO outputs. 1593 1594config GPIO_MAX3191X 1595 tristate "Maxim MAX3191x industrial serializer" 1596 select CRC8 1597 help 1598 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1599 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1600 chip to make 8 digital 24V inputs available via SPI. Supports 1601 CRC checksums to guard against electromagnetic interference, 1602 as well as undervoltage and overtemperature detection. 1603 1604config GPIO_MAX7301 1605 tristate "Maxim MAX7301 GPIO expander" 1606 select GPIO_MAX730X 1607 help 1608 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1609 1610config GPIO_MC33880 1611 tristate "Freescale MC33880 high-side/low-side switch" 1612 help 1613 SPI driver for Freescale MC33880 high-side/low-side switch. 1614 This provides GPIO interface supporting inputs and outputs. 1615 1616config GPIO_PISOSR 1617 tristate "Generic parallel-in/serial-out shift register" 1618 help 1619 GPIO driver for SPI compatible parallel-in/serial-out shift 1620 registers. These are input only devices. 1621 1622config GPIO_XRA1403 1623 tristate "EXAR XRA1403 16-bit GPIO expander" 1624 select REGMAP_SPI 1625 help 1626 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1627 1628config GPIO_MOXTET 1629 tristate "Turris Mox Moxtet bus GPIO expander" 1630 depends on MOXTET 1631 help 1632 Say yes here if you are building for the Turris Mox router. 1633 This is the driver needed for configuring the GPIOs via the Moxtet 1634 bus. For example the Mox module with SFP cage needs this driver 1635 so that phylink can use corresponding GPIOs. 1636 1637endmenu 1638 1639menu "USB GPIO expanders" 1640 depends on USB 1641 1642config GPIO_VIPERBOARD 1643 tristate "Viperboard GPIO a & b support" 1644 depends on MFD_VIPERBOARD 1645 help 1646 Say yes here to access the GPIO signals of Nano River 1647 Technologies Viperboard. There are two GPIO chips on the 1648 board: gpioa and gpiob. 1649 See viperboard API specification and Nano 1650 River Tech's viperboard.h for detailed meaning 1651 of the module parameters. 1652 1653endmenu 1654 1655menu "Virtual GPIO drivers" 1656 1657config GPIO_AGGREGATOR 1658 tristate "GPIO Aggregator" 1659 help 1660 Say yes here to enable the GPIO Aggregator, which provides a way to 1661 aggregate existing GPIO lines into a new virtual GPIO chip. 1662 This can serve the following purposes: 1663 - Assign permissions for a collection of GPIO lines to a user, 1664 - Export a collection of GPIO lines to a virtual machine, 1665 - Provide a generic driver for a GPIO-operated device in an 1666 industrial control context, to be operated from userspace using 1667 the GPIO chardev interface. 1668 1669config GPIO_LATCH 1670 tristate "GPIO latch driver" 1671 help 1672 Say yes here to enable a driver for GPIO multiplexers based on latches 1673 connected to other GPIOs. 1674 1675config GPIO_MOCKUP 1676 tristate "GPIO Testing Driver" 1677 select IRQ_SIM 1678 help 1679 This enables GPIO Testing driver, which provides a way to test GPIO 1680 subsystem through sysfs (or char device) and debugfs. 1681 User could use it through the script in 1682 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1683 it. 1684 1685config GPIO_VIRTIO 1686 tristate "VirtIO GPIO support" 1687 depends on VIRTIO 1688 select GPIOLIB_IRQCHIP 1689 help 1690 Say Y here to enable guest support for virtio-based GPIO controllers. 1691 1692 These virtual GPIOs can be routed to real GPIOs or attached to 1693 simulators on the host (like QEMU). 1694 1695config GPIO_SIM 1696 tristate "GPIO Simulator Module" 1697 select IRQ_SIM 1698 select CONFIGFS_FS 1699 help 1700 This enables the GPIO simulator - a configfs-based GPIO testing 1701 driver. 1702 1703endmenu 1704 1705endif 1706