1# SPDX-License-Identifier: GPL-2.0-only 2# 3# GPIO infrastructure and drivers 4# 5 6config ARCH_HAVE_CUSTOM_GPIO_H 7 bool 8 help 9 Selecting this config option from the architecture Kconfig allows 10 the architecture to provide a custom asm/gpio.h implementation 11 overriding the default implementations. New uses of this are 12 strongly discouraged. 13 14menuconfig GPIOLIB 15 bool "GPIO Support" 16 help 17 This enables GPIO support through the generic GPIO library. 18 You only need to enable this if you also want to enable 19 one or more of the GPIO drivers below. 20 21 If unsure, say N. 22 23if GPIOLIB 24 25config GPIOLIB_FASTPATH_LIMIT 26 int "Maximum number of GPIOs for fast path" 27 range 32 512 28 default 512 29 help 30 This adjusts the point at which certain APIs will switch from 31 using a stack allocated buffer to a dynamically allocated buffer. 32 33 You shouldn't need to change this unless you really need to 34 optimize either stack space or performance. Change this carefully 35 since setting an incorrect value could cause stack corruption. 36 37config OF_GPIO 38 def_bool y 39 depends on OF 40 depends on HAS_IOMEM 41 42config GPIO_ACPI 43 def_bool y 44 depends on ACPI 45 46config GPIOLIB_IRQCHIP 47 select IRQ_DOMAIN 48 bool 49 50config DEBUG_GPIO 51 bool "Debug GPIO calls" 52 depends on DEBUG_KERNEL 53 help 54 Say Y here to add some extra checks and diagnostics to GPIO calls. 55 These checks help ensure that GPIOs have been properly initialized 56 before they are used, and that sleeping calls are not made from 57 non-sleeping contexts. They can make bitbanged serial protocols 58 slower. The diagnostics help catch the type of setup errors 59 that are most common when setting up new platforms or boards. 60 61config GPIO_SYSFS 62 bool "/sys/class/gpio/... (sysfs interface)" if EXPERT 63 depends on SYSFS 64 select GPIO_CDEV # We need to encourage the new ABI 65 help 66 Say Y here to add the legacy sysfs interface for GPIOs. 67 68 This ABI is deprecated. If you want to use GPIO from userspace, 69 use the character device /dev/gpiochipN with the appropriate 70 ioctl() operations instead. 71 72config GPIO_CDEV 73 bool 74 prompt "Character device (/dev/gpiochipN) support" if EXPERT 75 default y 76 help 77 Say Y here to add the character device /dev/gpiochipN interface 78 for GPIOs. The character device allows userspace to control GPIOs 79 using ioctl() operations. 80 81 Only say N if you are sure that the GPIO character device is not 82 required. 83 84 If unsure, say Y. 85 86config GPIO_CDEV_V1 87 bool "Support GPIO ABI Version 1" 88 default y 89 depends on GPIO_CDEV 90 help 91 Say Y here to support version 1 of the GPIO CDEV ABI. 92 93 This ABI version is deprecated. 94 Please use the latest ABI for new developments. 95 96 If unsure, say Y. 97 98config GPIO_GENERIC 99 depends on HAS_IOMEM # Only for IOMEM drivers 100 tristate 101 102config GPIO_REGMAP 103 depends on REGMAP 104 tristate 105 106# put drivers in the right section, in alphabetical order 107 108# This symbol is selected by both I2C and SPI expanders 109config GPIO_MAX730X 110 tristate 111 112menu "Memory mapped GPIO drivers" 113 depends on HAS_IOMEM 114 115config GPIO_74XX_MMIO 116 tristate "GPIO driver for 74xx-ICs with MMIO access" 117 depends on OF_GPIO 118 select GPIO_GENERIC 119 help 120 Say yes here to support GPIO functionality for 74xx-compatible ICs 121 with MMIO access. Compatible models include: 122 1 bit: 741G125 (Input), 741G74 (Output) 123 2 bits: 742G125 (Input), 7474 (Output) 124 4 bits: 74125 (Input), 74175 (Output) 125 6 bits: 74365 (Input), 74174 (Output) 126 8 bits: 74244 (Input), 74273 (Output) 127 16 bits: 741624 (Input), 7416374 (Output) 128 129config GPIO_ALTERA 130 tristate "Altera GPIO" 131 depends on OF_GPIO 132 select GPIOLIB_IRQCHIP 133 help 134 Say Y or M here to build support for the Altera PIO device. 135 136 If driver is built as a module it will be called gpio-altera. 137 138config GPIO_AMDPT 139 tristate "AMD Promontory GPIO support" 140 depends on ACPI 141 select GPIO_GENERIC 142 help 143 Driver for GPIO functionality on Promontory IOHub. 144 Requires ACPI ASL code to enumerate as a platform device. 145 146config GPIO_ASPEED 147 tristate "Aspeed GPIO support" 148 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 149 select GPIOLIB_IRQCHIP 150 help 151 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 152 153config GPIO_ASPEED_SGPIO 154 bool "Aspeed SGPIO support" 155 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 156 select GPIO_GENERIC 157 select GPIOLIB_IRQCHIP 158 help 159 Say Y here to support Aspeed AST2500 SGPIO functionality. 160 161config GPIO_ATH79 162 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 163 default y if ATH79 164 depends on ATH79 || COMPILE_TEST 165 select GPIO_GENERIC 166 select GPIOLIB_IRQCHIP 167 help 168 Select this option to enable GPIO driver for 169 Atheros AR71XX/AR724X/AR913X SoC devices. 170 171config GPIO_RASPBERRYPI_EXP 172 tristate "Raspberry Pi 3 GPIO Expander" 173 default RASPBERRYPI_FIRMWARE 174 depends on OF_GPIO 175 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 176 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 177 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 178 help 179 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 180 the firmware mailbox to communicate with VideoCore on BCM283x chips. 181 182config GPIO_BCM_KONA 183 bool "Broadcom Kona GPIO" 184 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 185 help 186 Turn on GPIO support for Broadcom "Kona" chips. 187 188config GPIO_BCM_XGS_IPROC 189 tristate "BRCM XGS iProc GPIO support" 190 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 191 select GPIO_GENERIC 192 select GPIOLIB_IRQCHIP 193 default ARCH_BCM_IPROC 194 help 195 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 196 197config GPIO_BRCMSTB 198 tristate "BRCMSTB GPIO support" 199 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 200 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 201 select GPIO_GENERIC 202 select IRQ_DOMAIN 203 help 204 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 205 206config GPIO_CADENCE 207 tristate "Cadence GPIO support" 208 depends on OF_GPIO 209 select GPIO_GENERIC 210 select GPIOLIB_IRQCHIP 211 help 212 Say yes here to enable support for Cadence GPIO controller. 213 214config GPIO_CLPS711X 215 tristate "CLPS711X GPIO support" 216 depends on ARCH_CLPS711X || COMPILE_TEST 217 select GPIO_GENERIC 218 help 219 Say yes here to support GPIO on CLPS711X SoCs. 220 221config GPIO_DAVINCI 222 bool "TI Davinci/Keystone GPIO support" 223 default y if ARCH_DAVINCI 224 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 225 help 226 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 227 228config GPIO_DWAPB 229 tristate "Synopsys DesignWare APB GPIO driver" 230 select GPIO_GENERIC 231 select GPIOLIB_IRQCHIP 232 help 233 Say Y or M here to build support for the Synopsys DesignWare APB 234 GPIO block. 235 236config GPIO_EIC_SPRD 237 tristate "Spreadtrum EIC support" 238 depends on ARCH_SPRD || COMPILE_TEST 239 depends on OF_GPIO 240 select GPIOLIB_IRQCHIP 241 help 242 Say yes here to support Spreadtrum EIC device. 243 244config GPIO_EM 245 tristate "Emma Mobile GPIO" 246 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 247 help 248 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 249 250config GPIO_EN7523 251 tristate "Airoha GPIO support" 252 depends on ARCH_AIROHA 253 default ARCH_AIROHA 254 select GPIO_GENERIC 255 select GPIOLIB_IRQCHIP 256 help 257 Say Y or M here to support the GPIO controller block on the 258 Airoha EN7523 SoC. It supports two banks of 32 GPIOs. 259 260config GPIO_EP93XX 261 def_bool y 262 depends on ARCH_EP93XX 263 select GPIO_GENERIC 264 select GPIOLIB_IRQCHIP 265 266config GPIO_EXAR 267 tristate "Support for GPIO pins on XR17V352/354/358" 268 depends on SERIAL_8250_EXAR 269 select REGMAP_MMIO 270 help 271 Selecting this option will enable handling of GPIO pins present 272 on Exar XR17V352/354/358 chips. 273 274config GPIO_GE_FPGA 275 bool "GE FPGA based GPIO" 276 depends on GE_FPGA 277 select GPIO_GENERIC 278 help 279 Support for common GPIO functionality provided on some GE Single Board 280 Computers. 281 282 This driver provides basic support (configure as input or output, read 283 and write pin state) for GPIO implemented in a number of GE single 284 board computers. 285 286config GPIO_FTGPIO010 287 bool "Faraday FTGPIO010 GPIO" 288 depends on OF_GPIO 289 select GPIO_GENERIC 290 select GPIOLIB_IRQCHIP 291 default (ARCH_GEMINI || ARCH_MOXART) 292 help 293 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 294 Cortina systems Gemini platforms, Moxa ART and others. 295 296config GPIO_GENERIC_PLATFORM 297 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 298 select GPIO_GENERIC 299 help 300 Say yes here to support basic platform_device memory-mapped GPIO controllers. 301 302config GPIO_GRGPIO 303 tristate "Aeroflex Gaisler GRGPIO support" 304 depends on OF_GPIO 305 select GPIO_GENERIC 306 select IRQ_DOMAIN 307 help 308 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 309 VHDL IP core library. 310 311config GPIO_HISI 312 tristate "HiSilicon GPIO controller driver" 313 depends on (ARM64 && ACPI) || COMPILE_TEST 314 select GPIO_GENERIC 315 select GPIOLIB_IRQCHIP 316 help 317 Say Y or M here to build support for the HiSilicon GPIO controller 318 driver GPIO block. 319 This GPIO controller supports double-edge interrupt and multi-core 320 concurrent access. 321 322config GPIO_HLWD 323 tristate "Nintendo Wii (Hollywood) GPIO" 324 depends on OF_GPIO 325 select GPIO_GENERIC 326 select GPIOLIB_IRQCHIP 327 help 328 Select this to support the GPIO controller of the Nintendo Wii. 329 330 If unsure, say N. 331 332config GPIO_ICH 333 tristate "Intel ICH GPIO" 334 depends on X86 335 depends on LPC_ICH 336 help 337 Say yes here to support the GPIO functionality of a number of Intel 338 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 339 ICH9, ICH10, Series 5/3400 (e.g. Ibex Peak), Series 6/C200 (e.g. 340 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 341 342 If unsure, say N. 343 344config GPIO_IMX_SCU 345 def_bool y 346 depends on IMX_SCU 347 348config GPIO_IOP 349 tristate "Intel IOP GPIO" 350 depends on ARCH_IOP32X || COMPILE_TEST 351 select GPIO_GENERIC 352 help 353 Say yes here to support the GPIO functionality of a number of Intel 354 IOP32X or IOP33X series of chips. 355 356 If unsure, say N. 357 358config GPIO_IXP4XX 359 bool "Intel IXP4xx GPIO" 360 depends on ARCH_IXP4XX 361 depends on OF 362 select GPIO_GENERIC 363 select GPIOLIB_IRQCHIP 364 select IRQ_DOMAIN_HIERARCHY 365 help 366 Say yes here to support the GPIO functionality of a number of Intel 367 IXP4xx series of chips. 368 369 If unsure, say N. 370 371config GPIO_LOGICVC 372 tristate "Xylon LogiCVC GPIO support" 373 depends on MFD_SYSCON && OF 374 help 375 Say yes here to support GPIO functionality of the Xylon LogiCVC 376 programmable logic block. 377 378config GPIO_LOONGSON 379 bool "Loongson-2/3 GPIO support" 380 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 381 help 382 Driver for GPIO functionality on Loongson-2F/3A/3B processors. 383 384config GPIO_LPC18XX 385 tristate "NXP LPC18XX/43XX GPIO support" 386 default y if ARCH_LPC18XX 387 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 388 select IRQ_DOMAIN_HIERARCHY 389 help 390 Select this option to enable GPIO driver for 391 NXP LPC18XX/43XX devices. 392 393config GPIO_LPC32XX 394 tristate "NXP LPC32XX GPIO support" 395 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 396 help 397 Select this option to enable GPIO driver for 398 NXP LPC32XX devices. 399 400config GPIO_MB86S7X 401 tristate "GPIO support for Fujitsu MB86S7x Platforms" 402 help 403 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 404 405config GPIO_MENZ127 406 tristate "MEN 16Z127 GPIO support" 407 depends on MCB 408 select GPIO_GENERIC 409 help 410 Say yes here to support the MEN 16Z127 GPIO Controller. 411 412config GPIO_MM_LANTIQ 413 bool "Lantiq Memory mapped GPIOs" 414 depends on LANTIQ && SOC_XWAY 415 help 416 This enables support for memory mapped GPIOs on the External Bus Unit 417 (EBU) found on Lantiq SoCs. The GPIOs are output only as they are 418 created by attaching a 16-bit latch to the bus. 419 420config GPIO_MPC5200 421 def_bool y 422 depends on PPC_MPC52xx 423 424config GPIO_MPC8XXX 425 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 426 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 427 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 428 COMPILE_TEST 429 select GPIO_GENERIC 430 select IRQ_DOMAIN 431 help 432 Say Y here if you're going to use hardware that connects to the 433 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 434 435config GPIO_MT7621 436 bool "Mediatek MT7621 GPIO Support" 437 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 438 depends on OF_GPIO 439 select GPIO_GENERIC 440 select GPIOLIB_IRQCHIP 441 help 442 Say yes here to support the Mediatek MT7621 SoC GPIO device. 443 444config GPIO_MVEBU 445 def_bool y 446 depends on PLAT_ORION || ARCH_MVEBU 447 depends on OF_GPIO 448 select GENERIC_IRQ_CHIP 449 select REGMAP_MMIO 450 451config GPIO_MXC 452 tristate "i.MX GPIO support" 453 depends on ARCH_MXC || COMPILE_TEST 454 select GPIO_GENERIC 455 select GENERIC_IRQ_CHIP 456 457config GPIO_MXS 458 bool "Freescale MXS GPIO support" if COMPILE_TEST 459 depends on ARCH_MXS || COMPILE_TEST 460 default y if ARCH_MXS 461 select GPIO_GENERIC 462 select GENERIC_IRQ_CHIP 463 464config GPIO_OCTEON 465 tristate "Cavium OCTEON GPIO" 466 depends on CAVIUM_OCTEON_SOC 467 default y 468 help 469 Say yes here to support the on-chip GPIO lines on the OCTEON 470 family of SOCs. 471 472config GPIO_OMAP 473 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 474 default y if ARCH_OMAP 475 depends on ARM 476 select GENERIC_IRQ_CHIP 477 select GPIOLIB_IRQCHIP 478 help 479 Say yes here to enable GPIO support for TI OMAP SoCs. 480 481config GPIO_PL061 482 tristate "PrimeCell PL061 GPIO support" 483 depends on ARM_AMBA 484 select IRQ_DOMAIN 485 select GPIOLIB_IRQCHIP 486 help 487 Say yes here to support the PrimeCell PL061 GPIO device. 488 489config GPIO_PMIC_EIC_SPRD 490 tristate "Spreadtrum PMIC EIC support" 491 depends on MFD_SC27XX_PMIC || COMPILE_TEST 492 depends on OF_GPIO 493 select GPIOLIB_IRQCHIP 494 help 495 Say yes here to support Spreadtrum PMIC EIC device. 496 497config GPIO_PXA 498 bool "PXA GPIO support" 499 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 500 help 501 Say yes here to support the PXA GPIO device. 502 503config GPIO_RCAR 504 tristate "Renesas R-Car and RZ/G GPIO support" 505 depends on ARCH_RENESAS || COMPILE_TEST 506 select GPIOLIB_IRQCHIP 507 help 508 Say yes here to support GPIO on Renesas R-Car or RZ/G SoCs. 509 510config GPIO_RDA 511 bool "RDA Micro GPIO controller support" 512 depends on ARCH_RDA || COMPILE_TEST 513 depends on OF_GPIO 514 select GPIO_GENERIC 515 select GPIOLIB_IRQCHIP 516 help 517 Say Y here to support RDA Micro GPIO controller. 518 519config GPIO_REALTEK_OTTO 520 tristate "Realtek Otto GPIO support" 521 depends on MACH_REALTEK_RTL 522 default MACH_REALTEK_RTL 523 select GPIO_GENERIC 524 select GPIOLIB_IRQCHIP 525 help 526 The GPIO controller on the Otto MIPS platform supports up to two 527 banks of 32 GPIOs, with edge triggered interrupts. The 32 GPIOs 528 are grouped in four 8-bit wide ports. 529 530 When built as a module, the module will be called realtek_otto_gpio. 531 532config GPIO_REG 533 bool 534 help 535 A 32-bit single register GPIO fixed in/out implementation. This 536 can be used to represent any register as a set of GPIO signals. 537 538config GPIO_ROCKCHIP 539 tristate "Rockchip GPIO support" 540 depends on ARCH_ROCKCHIP || COMPILE_TEST 541 select GENERIC_IRQ_CHIP 542 select GPIOLIB_IRQCHIP 543 default ARCH_ROCKCHIP 544 help 545 Say yes here to support GPIO on Rockchip SoCs. 546 547config GPIO_SAMA5D2_PIOBU 548 tristate "SAMA5D2 PIOBU GPIO support" 549 depends on MFD_SYSCON 550 depends on OF_GPIO 551 depends on ARCH_AT91 || COMPILE_TEST 552 select GPIO_SYSCON 553 help 554 Say yes here to use the PIOBU pins as GPIOs. 555 556 PIOBU pins on the SAMA5D2 can be used as GPIOs. 557 The difference from regular GPIOs is that they 558 maintain their value during backup/self-refresh. 559 560config GPIO_SIFIVE 561 bool "SiFive GPIO support" 562 depends on OF_GPIO 563 select IRQ_DOMAIN_HIERARCHY 564 select GPIO_GENERIC 565 select GPIOLIB_IRQCHIP 566 select REGMAP_MMIO 567 help 568 Say yes here to support the GPIO device on SiFive SoCs. 569 570config GPIO_SIOX 571 tristate "SIOX GPIO support" 572 depends on SIOX 573 select GPIOLIB_IRQCHIP 574 help 575 Say yes here to support SIOX I/O devices. These are units connected 576 via a SIOX bus and have a number of fixed-direction I/O lines. 577 578config GPIO_SNPS_CREG 579 bool "Synopsys GPIO via CREG (Control REGisters) driver" 580 depends on ARC || COMPILE_TEST 581 depends on OF_GPIO 582 help 583 This driver supports GPIOs via CREG on various Synopsys SoCs. 584 This is a single-register MMIO GPIO driver for complex cases 585 where only several fields in register belong to GPIO lines and 586 each GPIO line owns a field with different length and on/off value. 587 588config GPIO_SPEAR_SPICS 589 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 590 depends on PLAT_SPEAR 591 select GENERIC_IRQ_CHIP 592 help 593 Say yes here to support ST SPEAr SPI Chip Select as GPIO device. 594 595config GPIO_SPRD 596 tristate "Spreadtrum GPIO support" 597 depends on ARCH_SPRD || COMPILE_TEST 598 depends on OF_GPIO 599 select GPIOLIB_IRQCHIP 600 help 601 Say yes here to support Spreadtrum GPIO device. 602 603config GPIO_STA2X11 604 bool "STA2x11/ConneXt GPIO support" 605 depends on MFD_STA2X11 606 select GENERIC_IRQ_CHIP 607 help 608 Say yes here to support the STA2x11/ConneXt GPIO device. 609 The GPIO module has 128 GPIO pins with alternate functions. 610 611config GPIO_STP_XWAY 612 bool "XWAY STP GPIOs" 613 depends on SOC_XWAY || COMPILE_TEST 614 depends on OF_GPIO 615 help 616 This enables support for the Serial To Parallel (STP) unit found on 617 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 618 that can be up to 24 bits. This peripheral is aimed at driving LEDs. 619 Some of the GPIOs/LEDs can be auto updated by the SoC with DSL and 620 phy status. 621 622config GPIO_SYSCON 623 tristate "GPIO based on SYSCON" 624 depends on MFD_SYSCON && OF 625 help 626 Say yes here to support GPIO functionality though SYSCON driver. 627 628config GPIO_TB10X 629 bool 630 select GPIO_GENERIC 631 select GENERIC_IRQ_CHIP 632 select OF_GPIO 633 634config GPIO_TEGRA 635 tristate "NVIDIA Tegra GPIO support" 636 default ARCH_TEGRA 637 depends on ARCH_TEGRA || COMPILE_TEST 638 depends on OF_GPIO 639 select GPIOLIB_IRQCHIP 640 select IRQ_DOMAIN_HIERARCHY 641 help 642 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 643 644config GPIO_TEGRA186 645 tristate "NVIDIA Tegra186 GPIO support" 646 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 647 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 648 depends on OF_GPIO 649 select GPIOLIB_IRQCHIP 650 select IRQ_DOMAIN_HIERARCHY 651 help 652 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 653 654config GPIO_TS4800 655 tristate "TS-4800 DIO blocks and compatibles" 656 depends on OF_GPIO 657 depends on SOC_IMX51 || COMPILE_TEST 658 select GPIO_GENERIC 659 help 660 This driver support TS-4800 FPGA GPIO controllers. 661 662config GPIO_THUNDERX 663 tristate "Cavium ThunderX/OCTEON-TX GPIO" 664 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 665 depends on PCI_MSI 666 select GPIOLIB_IRQCHIP 667 select IRQ_DOMAIN_HIERARCHY 668 select IRQ_FASTEOI_HIERARCHY_HANDLERS 669 help 670 Say yes here to support the on-chip GPIO lines on the ThunderX 671 and OCTEON-TX families of SoCs. 672 673config GPIO_UNIPHIER 674 tristate "UniPhier GPIO support" 675 depends on ARCH_UNIPHIER || COMPILE_TEST 676 depends on OF_GPIO 677 select IRQ_DOMAIN_HIERARCHY 678 help 679 Say yes here to support UniPhier GPIOs. 680 681config GPIO_VF610 682 def_bool y 683 depends on ARCH_MXC 684 select GPIOLIB_IRQCHIP 685 help 686 Say yes here to support i.MX or Vybrid vf610 GPIOs. 687 688config GPIO_VISCONTI 689 tristate "Toshiba Visconti GPIO support" 690 depends on ARCH_VISCONTI || COMPILE_TEST 691 depends on OF_GPIO 692 select GPIOLIB_IRQCHIP 693 select GPIO_GENERIC 694 select IRQ_DOMAIN_HIERARCHY 695 help 696 Say yes here to support GPIO on Tohisba Visconti. 697 698config GPIO_VX855 699 tristate "VIA VX855/VX875 GPIO" 700 depends on (X86 || COMPILE_TEST) && PCI 701 select MFD_CORE 702 select MFD_VX855 703 help 704 Support access to the VX855/VX875 GPIO lines through the GPIO library. 705 706 This driver provides common support for accessing the device. 707 Additional drivers must be enabled in order to use the 708 functionality of the device. 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 && OF_GPIO 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 # Unconditional I/O space access 830 831config GPIO_I8255 832 tristate 833 help 834 Enables support for the i8255 interface library functions. The i8255 835 interface library provides functions to facilitate communication with 836 interfaces compatible with the venerable Intel 8255 Programmable 837 Peripheral Interface (PPI). The Intel 8255 PPI chip was first released 838 in the early 1970s but compatible interfaces are nowadays typically 839 found embedded in larger VLSI processing chips and FPGA components. 840 841 If built as a module its name will be gpio-i8255. 842 843config GPIO_104_DIO_48E 844 tristate "ACCES 104-DIO-48E GPIO support" 845 depends on PC104 846 select ISA_BUS_API 847 select GPIOLIB_IRQCHIP 848 select GPIO_I8255 849 help 850 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 851 104-DIO-24E). The base port addresses for the devices may be 852 configured via the base module parameter. The interrupt line numbers 853 for the devices may be configured via the irq module parameter. 854 855config GPIO_104_IDIO_16 856 tristate "ACCES 104-IDIO-16 GPIO support" 857 depends on PC104 858 select ISA_BUS_API 859 select GPIOLIB_IRQCHIP 860 help 861 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 862 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 863 base port addresses for the devices may be configured via the base 864 module parameter. The interrupt line numbers for the devices may be 865 configured via the irq module parameter. 866 867config GPIO_104_IDI_48 868 tristate "ACCES 104-IDI-48 GPIO support" 869 depends on PC104 870 select ISA_BUS_API 871 select GPIOLIB_IRQCHIP 872 select GPIO_I8255 873 help 874 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 875 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 876 the devices may be configured via the base module parameter. The 877 interrupt line numbers for the devices may be configured via the irq 878 module parameter. 879 880config GPIO_F7188X 881 tristate "Fintek and Nuvoton Super-I/O GPIO support" 882 help 883 This option enables support for GPIOs found on Fintek Super-I/O 884 chips F71869, F71869A, F71882FG, F71889F and F81866. 885 As well as Nuvoton Super-I/O chip NCT6116D. 886 887 To compile this driver as a module, choose M here: the module will 888 be called f7188x-gpio. 889 890config GPIO_GPIO_MM 891 tristate "Diamond Systems GPIO-MM GPIO support" 892 depends on PC104 893 select ISA_BUS_API 894 select GPIO_I8255 895 help 896 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 897 898 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 899 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 900 support for these 48 channels of digital I/O. 901 902 The base port addresses for the devices may be configured via the base 903 array module parameter. 904 905config GPIO_IT87 906 tristate "IT87xx GPIO support" 907 help 908 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 909 910 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 911 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 912 well. 913 914 To compile this driver as a module, choose M here: the module will 915 be called gpio_it87. 916 917config GPIO_SCH 918 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 919 depends on (X86 || COMPILE_TEST) && ACPI 920 depends on LPC_SCH 921 select GPIOLIB_IRQCHIP 922 help 923 Say yes here to support GPIO interface on Intel Poulsbo SCH, 924 Intel Tunnel Creek processor, Intel Centerton processor or 925 Intel Quark X1000 SoC. 926 927 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 928 powered by the core power rail and are turned off during sleep 929 modes (S3 and higher). The remaining four GPIOs are powered by 930 the Intel SCH suspend power supply. These GPIOs remain 931 active during S3. The suspend-powered GPIOs can be used to wake the 932 system from the Suspend-to-RAM state. 933 934 The Intel Tunnel Creek processor has 5 GPIOs powered by the 935 core power rail and 9 from suspend power supply. 936 937 The Intel Centerton processor has a total of 30 GPIO pins. 938 Twenty-one are powered by the core power rail and 9 from the 939 suspend power supply. 940 941 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 942 power well and 6 from the suspend power well. 943 944config GPIO_SCH311X 945 tristate "SMSC SCH311x SuperI/O GPIO" 946 help 947 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 948 SCH3116 "Super I/O" chipsets. 949 950 To compile this driver as a module, choose M here: the module will 951 be called gpio-sch311x. 952 953config GPIO_TS5500 954 tristate "TS-5500 DIO blocks and compatibles" 955 depends on TS5500 || COMPILE_TEST 956 help 957 This driver supports Digital I/O exposed by pin blocks found on some 958 Technologic Systems platforms. It includes, but is not limited to, 3 959 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 960 LCD port. 961 962config GPIO_WINBOND 963 tristate "Winbond Super I/O GPIO support" 964 select ISA_BUS_API 965 help 966 This option enables support for GPIOs found on Winbond Super I/O 967 chips. 968 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 969 supported. 970 971 You will need to provide a module parameter "gpios", or a 972 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 973 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 974 975 To compile this driver as a module, choose M here: the module will 976 be called gpio-winbond. 977 978config GPIO_WS16C48 979 tristate "WinSystems WS16C48 GPIO support" 980 select ISA_BUS_API 981 select GPIOLIB_IRQCHIP 982 help 983 Enables GPIO support for the WinSystems WS16C48. The base port 984 addresses for the devices may be configured via the base module 985 parameter. The interrupt line numbers for the devices may be 986 configured via the irq module parameter. 987 988endmenu 989 990menu "I2C GPIO expanders" 991 depends on I2C 992 993config GPIO_ADNP 994 tristate "Avionic Design N-bit GPIO expander" 995 depends on OF_GPIO 996 select GPIOLIB_IRQCHIP 997 help 998 This option enables support for N GPIOs found on Avionic Design 999 I2C GPIO expanders. The register space will be extended by powers 1000 of two, so the controller will need to accommodate for that. For 1001 example: if a controller provides 48 pins, 6 registers will be 1002 enough to represent all pins, but the driver will assume a 1003 register layout for 64 pins (8 registers). 1004 1005config GPIO_GW_PLD 1006 tristate "Gateworks PLD GPIO Expander" 1007 depends on OF_GPIO 1008 help 1009 Say yes here to provide access to the Gateworks I2C PLD GPIO 1010 Expander. This is used at least on the Cambria GW2358-4. 1011 1012config GPIO_MAX7300 1013 tristate "Maxim MAX7300 GPIO expander" 1014 select GPIO_MAX730X 1015 help 1016 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 1017 1018config GPIO_MAX732X 1019 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 1020 help 1021 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 1022 Port Expanders. Each IO port on these chips has a fixed role of 1023 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 1024 Input and Output (designed by 'P'). The combinations are listed 1025 below: 1026 1027 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 1028 max7322 (4I4O), max7323 (4P4O) 1029 1030 16 bits: max7324 (8I8O), max7325 (8P8O), 1031 max7326 (4I12O), max7327 (4P12O) 1032 1033 Board setup code must specify the model to use, and the start 1034 number for these GPIOs. 1035 1036config GPIO_MAX732X_IRQ 1037 bool "Interrupt controller support for MAX732x" 1038 depends on GPIO_MAX732X=y 1039 select GPIOLIB_IRQCHIP 1040 help 1041 Say yes here to enable the max732x to be used as an interrupt 1042 controller. It requires the driver to be built in the kernel. 1043 1044config GPIO_PCA953X 1045 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 1046 select REGMAP_I2C 1047 help 1048 Say yes here to provide access to several register-oriented 1049 SMBus I/O expanders, made mostly by NXP or TI. Compatible 1050 models include: 1051 1052 4 bits: pca9536, pca9537 1053 1054 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 1055 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 1056 1057 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1058 tca6416 1059 1060 24 bits: tca6424 1061 1062 40 bits: pca9505, pca9698 1063 1064config GPIO_PCA953X_IRQ 1065 bool "Interrupt controller support for PCA953x" 1066 depends on GPIO_PCA953X 1067 select GPIOLIB_IRQCHIP 1068 help 1069 Say yes here to enable the pca953x to be used as an interrupt 1070 controller. 1071 1072config GPIO_PCA9570 1073 tristate "PCA9570 4-Bit I2C GPO expander" 1074 help 1075 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1076 1077 To compile this driver as a module, choose M here: the module will 1078 be called gpio-pca9570. 1079 1080config GPIO_PCF857X 1081 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1082 select GPIOLIB_IRQCHIP 1083 select IRQ_DOMAIN 1084 help 1085 Say yes here to provide access to most "quasi-bidirectional" I2C 1086 GPIO expanders used for additional digital outputs or inputs. 1087 Most of these parts are from NXP, though TI is a second source for 1088 some of them. Compatible models include: 1089 1090 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1091 pca9670, pca9672, pca9674, pca9674a, 1092 max7328, max7329 1093 1094 16 bits: pcf8575, pcf8575c, pca8575, 1095 pca9671, pca9673, pca9675 1096 1097 Your board setup code will need to declare the expanders in 1098 use, and assign numbers to the GPIOs they expose. Those GPIOs 1099 can then be used from drivers and other kernel code, just like 1100 other GPIOs, but only accessible from task contexts. 1101 1102 This driver provides an in-kernel interface to those GPIOs using 1103 platform-neutral GPIO calls. 1104 1105config GPIO_TPIC2810 1106 tristate "TPIC2810 8-Bit I2C GPO expander" 1107 help 1108 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1109 1110 To compile this driver as a module, choose M here: the module will 1111 be called gpio-tpic2810. 1112 1113config GPIO_TS4900 1114 tristate "Technologic Systems FPGA I2C GPIO" 1115 depends on SOC_IMX6 || COMPILE_TEST 1116 select REGMAP_I2C 1117 help 1118 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1119 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1120 1121endmenu 1122 1123menu "MFD GPIO expanders" 1124 1125config GPIO_ADP5520 1126 tristate "GPIO Support for ADP5520 PMIC" 1127 depends on PMIC_ADP5520 1128 help 1129 This option enables support for on-chip GPIO found 1130 on Analog Devices ADP5520 PMICs. 1131 1132config GPIO_ALTERA_A10SR 1133 tristate "Altera Arria10 System Resource GPIO" 1134 depends on MFD_ALTERA_A10SR 1135 help 1136 Driver for Arria10 Development Kit GPIO expansion which 1137 includes reads of pushbuttons and DIP switches as well 1138 as writes to LEDs. 1139 1140config GPIO_ARIZONA 1141 tristate "Wolfson Microelectronics Arizona class devices" 1142 depends on MFD_ARIZONA 1143 help 1144 Support for GPIOs on Wolfson Arizona class devices. 1145 1146config GPIO_BD71815 1147 tristate "ROHM BD71815 PMIC GPIO support" 1148 depends on MFD_ROHM_BD71828 1149 help 1150 Support for GPO(s) on ROHM BD71815 PMIC. There are two GPOs 1151 available on the ROHM PMIC. 1152 1153 This driver can also be built as a module. If so, the module 1154 will be called gpio-bd71815. 1155 1156config GPIO_BD71828 1157 tristate "ROHM BD71828 GPIO support" 1158 depends on MFD_ROHM_BD71828 1159 help 1160 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1161 available on the ROHM PMIC in total. The GPIOs are limited to 1162 outputs only and pins must be configured to GPIO outputs by 1163 OTP. Enable this only if you want to use these pins as outputs. 1164 1165 This driver can also be built as a module. If so, the module 1166 will be called gpio-bd71828. 1167 1168config GPIO_BD9571MWV 1169 tristate "ROHM BD9571 GPIO support" 1170 depends on MFD_BD9571MWV 1171 help 1172 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1173 available on the ROHM PMIC in total, both of which can also 1174 generate interrupts. 1175 1176 This driver can also be built as a module. If so, the module 1177 will be called gpio-bd9571mwv. 1178 1179config GPIO_CRYSTAL_COVE 1180 tristate "GPIO support for Crystal Cove PMIC" 1181 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1182 select GPIOLIB_IRQCHIP 1183 help 1184 Support for GPIO pins on Crystal Cove PMIC. 1185 1186 Say Yes if you have a Intel SoC-based tablet with Crystal Cove PMIC 1187 inside. 1188 1189 This driver can also be built as a module. If so, the module will be 1190 called gpio-crystalcove. 1191 1192config GPIO_CS5535 1193 tristate "AMD CS5535/CS5536 GPIO support" 1194 depends on X86 || MIPS || COMPILE_TEST 1195 depends on MFD_CS5535 1196 help 1197 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1198 can be used for quite a number of things. The CS5535/6 is found on 1199 AMD Geode and Lemote Yeeloong devices. 1200 1201 If unsure, say N. 1202 1203config GPIO_DA9052 1204 tristate "Dialog DA9052 GPIO" 1205 depends on PMIC_DA9052 1206 help 1207 Say yes here to enable the GPIO driver for the DA9052 chip. 1208 1209config GPIO_DA9055 1210 tristate "Dialog Semiconductor DA9055 GPIO" 1211 depends on MFD_DA9055 1212 help 1213 Say yes here to enable the GPIO driver for the DA9055 chip. 1214 1215 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1216 be controlled by this driver. 1217 1218 If driver is built as a module it will be called gpio-da9055. 1219 1220config GPIO_DLN2 1221 tristate "Diolan DLN2 GPIO support" 1222 depends on MFD_DLN2 1223 select GPIOLIB_IRQCHIP 1224 1225 help 1226 Select this option to enable GPIO driver for the Diolan DLN2 1227 board. 1228 1229 This driver can also be built as a module. If so, the module 1230 will be called gpio-dln2. 1231 1232config HTC_EGPIO 1233 bool "HTC EGPIO support" 1234 depends on ARM 1235 help 1236 This driver supports the CPLD egpio chip present on 1237 several HTC phones. It provides basic support for input 1238 pins, output pins, and IRQs. 1239 1240config GPIO_JANZ_TTL 1241 tristate "Janz VMOD-TTL Digital IO Module" 1242 depends on MFD_JANZ_CMODIO 1243 help 1244 This enables support for the Janz VMOD-TTL Digital IO module. 1245 This driver provides support for driving the pins in output 1246 mode only. Input mode is not supported. 1247 1248config GPIO_KEMPLD 1249 tristate "Kontron ETX / COMexpress GPIO" 1250 depends on MFD_KEMPLD 1251 help 1252 This enables support for the PLD GPIO interface on some Kontron ETX 1253 and COMexpress (ETXexpress) modules. 1254 1255 This driver can also be built as a module. If so, the module will be 1256 called gpio-kempld. 1257 1258config GPIO_LP3943 1259 tristate "TI/National Semiconductor LP3943 GPIO expander" 1260 depends on MFD_LP3943 1261 help 1262 GPIO driver for LP3943 MFD. 1263 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1264 Open drain outputs are required for this usage. 1265 1266config GPIO_LP873X 1267 tristate "TI LP873X GPO" 1268 depends on MFD_TI_LP873X 1269 help 1270 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1271 on LP873X PMICs. 1272 1273 This driver can also be built as a module. If so, the module will be 1274 called gpio-lp873x. 1275 1276config GPIO_LP87565 1277 tristate "TI LP87565 GPIO" 1278 depends on MFD_TI_LP87565 1279 help 1280 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1281 on LP87565 PMICs. 1282 1283 This driver can also be built as a module. If so, the module will be 1284 called gpio-lp87565. 1285 1286config GPIO_MADERA 1287 tristate "Cirrus Logic Madera class codecs" 1288 depends on PINCTRL_MADERA 1289 help 1290 Support for GPIOs on Cirrus Logic Madera class codecs. 1291 1292config GPIO_MAX77620 1293 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1294 depends on MFD_MAX77620 1295 select GPIOLIB_IRQCHIP 1296 help 1297 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1298 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1299 driver also provides interrupt support for each of the GPIOs. 1300 Say yes here to enable the max77620 to be used as GPIO controller. 1301 1302config GPIO_MAX77650 1303 tristate "Maxim MAX77650/77651 GPIO support" 1304 depends on MFD_MAX77650 1305 help 1306 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1307 These chips have a single pin that can be configured as GPIO. 1308 1309config GPIO_PALMAS 1310 bool "TI PALMAS series PMICs GPIO" 1311 depends on MFD_PALMAS 1312 help 1313 Select this option to enable GPIO driver for the TI PALMAS 1314 series chip family. 1315 1316config GPIO_RC5T583 1317 bool "RICOH RC5T583 GPIO" 1318 depends on MFD_RC5T583 1319 help 1320 Select this option to enable GPIO driver for the Ricoh RC5T583 1321 chip family. 1322 This driver provides the support for driving/reading the GPIO pins 1323 of RC5T583 device through standard GPIO library. 1324 1325config GPIO_SL28CPLD 1326 tristate "Kontron sl28cpld GPIO support" 1327 depends on MFD_SL28CPLD || COMPILE_TEST 1328 select GPIO_REGMAP 1329 select GPIOLIB_IRQCHIP 1330 select REGMAP_IRQ 1331 help 1332 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1333 1334 This driver can also be built as a module. If so, the module will be 1335 called gpio-sl28cpld. 1336 1337config GPIO_STMPE 1338 bool "STMPE GPIOs" 1339 depends on MFD_STMPE 1340 depends on OF_GPIO 1341 select GPIOLIB_IRQCHIP 1342 help 1343 This enables support for the GPIOs found on the STMPE I/O 1344 Expanders. 1345 1346config GPIO_TC3589X 1347 bool "TC3589X GPIOs" 1348 depends on MFD_TC3589X 1349 depends on OF_GPIO 1350 select GPIOLIB_IRQCHIP 1351 help 1352 This enables support for the GPIOs found on the TC3589X 1353 I/O Expander. 1354 1355config GPIO_TIMBERDALE 1356 bool "Support for timberdale GPIO IP" 1357 depends on MFD_TIMBERDALE 1358 help 1359 Add support for the GPIO IP in the timberdale FPGA. 1360 1361config GPIO_TN48M_CPLD 1362 tristate "Delta Networks TN48M switch CPLD GPIO driver" 1363 depends on MFD_TN48M_CPLD 1364 select GPIO_REGMAP 1365 help 1366 This enables support for the GPIOs found on the Delta 1367 Networks TN48M switch Lattice CPLD. It provides 12 pins in total, 1368 they are input-only or output-only type. 1369 1370 This driver can also be built as a module. If so, the 1371 module will be called gpio-tn48m. 1372 1373config GPIO_TPS65086 1374 tristate "TI TPS65086 GPO" 1375 depends on MFD_TPS65086 1376 help 1377 This driver supports the GPO on TI TPS65086x PMICs. 1378 1379config GPIO_TPS65218 1380 tristate "TPS65218 GPIO" 1381 depends on MFD_TPS65218 1382 help 1383 Select this option to enable GPIO driver for the TPS65218 1384 chip family. 1385 1386config GPIO_TPS6586X 1387 bool "TPS6586X GPIO" 1388 depends on MFD_TPS6586X 1389 help 1390 Select this option to enable GPIO driver for the TPS6586X 1391 chip family. 1392 1393config GPIO_TPS65910 1394 bool "TPS65910 GPIO" 1395 depends on MFD_TPS65910 1396 help 1397 Select this option to enable GPIO driver for the TPS65910 1398 chip family. 1399 1400config GPIO_TPS65912 1401 tristate "TI TPS65912 GPIO" 1402 depends on MFD_TPS65912 1403 help 1404 This driver supports TPS65912 GPIO chip. 1405 1406config GPIO_TPS68470 1407 tristate "TPS68470 GPIO" 1408 depends on INTEL_SKL_INT3472 1409 help 1410 Select this option to enable GPIO driver for the TPS68470 1411 chip family. 1412 There are 7 GPIOs and few sensor-related GPIOs supported 1413 by the TPS68470. While the 7 GPIOs can be configured as 1414 input or output as appropriate, the sensor related GPIOs 1415 are "output only" GPIOs. 1416 1417config GPIO_TQMX86 1418 tristate "TQ-Systems QTMX86 GPIO" 1419 depends on MFD_TQMX86 || COMPILE_TEST 1420 depends on HAS_IOPORT_MAP 1421 select GPIOLIB_IRQCHIP 1422 help 1423 This driver supports GPIO on the TQMX86 IO controller. 1424 1425config GPIO_TWL4030 1426 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1427 depends on TWL4030_CORE 1428 help 1429 Say yes here to access the GPIO signals of various multi-function 1430 power management chips from Texas Instruments. 1431 1432config GPIO_TWL6040 1433 tristate "TWL6040 GPO" 1434 depends on TWL6040_CORE 1435 help 1436 Say yes here to access the GPO signals of twl6040 1437 audio chip from Texas Instruments. 1438 1439config GPIO_UCB1400 1440 tristate "Philips UCB1400 GPIO" 1441 depends on UCB1400_CORE 1442 help 1443 This enables support for the Philips UCB1400 GPIO pins. 1444 The UCB1400 is an AC97 audio codec. 1445 1446config GPIO_WHISKEY_COVE 1447 tristate "GPIO support for Whiskey Cove PMIC" 1448 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1449 select GPIOLIB_IRQCHIP 1450 help 1451 Support for GPIO pins on Whiskey Cove PMIC. 1452 1453 Say Yes if you have an Intel SoC-based tablet with Whiskey Cove PMIC 1454 inside. 1455 1456 This driver can also be built as a module. If so, the module will be 1457 called gpio-wcove. 1458 1459config GPIO_WM831X 1460 tristate "WM831x GPIOs" 1461 depends on MFD_WM831X 1462 help 1463 Say yes here to access the GPIO signals of WM831x power management 1464 chips from Wolfson Microelectronics. 1465 1466config GPIO_WM8350 1467 tristate "WM8350 GPIOs" 1468 depends on MFD_WM8350 1469 help 1470 Say yes here to access the GPIO signals of WM8350 power management 1471 chips from Wolfson Microelectronics. 1472 1473config GPIO_WM8994 1474 tristate "WM8994 GPIOs" 1475 depends on MFD_WM8994 1476 help 1477 Say yes here to access the GPIO signals of WM8994 audio hub 1478 CODECs from Wolfson Microelectronics. 1479 1480endmenu 1481 1482menu "PCI GPIO expanders" 1483 depends on PCI 1484 1485config GPIO_AMD8111 1486 tristate "AMD 8111 GPIO driver" 1487 depends on X86 || COMPILE_TEST 1488 depends on HAS_IOPORT_MAP 1489 help 1490 The AMD 8111 southbridge contains 32 GPIO pins which can be used. 1491 1492 Note that usually system firmware/ACPI handles GPIO pins on their 1493 own and users might easily break their systems with uncareful usage 1494 of this driver! 1495 1496 If unsure, say N 1497 1498config GPIO_BT8XX 1499 tristate "BT8XX GPIO abuser" 1500 depends on VIDEO_BT848=n 1501 help 1502 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1503 as a cheap PCI GPIO card. 1504 1505 This chip can be found on Miro, Hauppauge and STB TV-cards. 1506 1507 The card needs to be physically altered for using it as a 1508 GPIO card. For more information on how to build a GPIO card 1509 from a BT8xx TV card, see the documentation file at 1510 Documentation/driver-api/gpio/bt8xxgpio.rst 1511 1512 If unsure, say N. 1513 1514config GPIO_MERRIFIELD 1515 tristate "Intel Merrifield GPIO support" 1516 depends on X86_INTEL_MID 1517 select GPIOLIB_IRQCHIP 1518 help 1519 Say Y here to support Intel Merrifield GPIO. 1520 1521config GPIO_MLXBF 1522 tristate "Mellanox BlueField SoC GPIO" 1523 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1524 select GPIO_GENERIC 1525 help 1526 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1527 1528config GPIO_MLXBF2 1529 tristate "Mellanox BlueField 2 SoC GPIO" 1530 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1531 select GPIO_GENERIC 1532 help 1533 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1534 1535config GPIO_ML_IOH 1536 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1537 depends on X86 || COMPILE_TEST 1538 select GENERIC_IRQ_CHIP 1539 help 1540 ML7213 is companion chip for Intel Atom E6xx series. 1541 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH (Input/Output 1542 Hub) which is for IVI (In-Vehicle Infotainment) use. 1543 This driver can access the IOH's GPIO device. 1544 1545config GPIO_PCH 1546 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH (ML7223/ML7831) GPIO" 1547 depends on X86_32 || MIPS || COMPILE_TEST 1548 select GENERIC_IRQ_CHIP 1549 help 1550 This driver is for PCH (Platform Controller Hub) GPIO of Intel Topcliff, 1551 which is an IOH (Input/Output Hub) for x86 embedded processor. 1552 This driver can access PCH GPIO device. 1553 1554 This driver also can be used for LAPIS Semiconductor IOH (Input/ 1555 Output Hub), ML7223 and ML7831. 1556 ML7223 IOH is for MP (Media Phone) use. 1557 ML7831 IOH is for general purpose use. 1558 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1559 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1560 1561config GPIO_PCI_IDIO_16 1562 tristate "ACCES PCI-IDIO-16 GPIO support" 1563 select GPIOLIB_IRQCHIP 1564 help 1565 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1566 generated when any of the inputs change state (low to high or high to 1567 low). Input filter control is not supported by this driver, and the 1568 input filters are deactivated by this driver. 1569 1570config GPIO_PCIE_IDIO_24 1571 tristate "ACCES PCIe-IDIO-24 GPIO support" 1572 select GPIOLIB_IRQCHIP 1573 help 1574 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1575 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1576 when any of the inputs change state (low to high or high to low). 1577 Input filter control is not supported by this driver, and the input 1578 filters are deactivated by this driver. 1579 1580config GPIO_RDC321X 1581 tristate "RDC R-321x GPIO support" 1582 select MFD_CORE 1583 select MFD_RDC321X 1584 help 1585 Support for the RDC R321x SoC GPIOs over southbridge 1586 PCI configuration space. 1587 1588config GPIO_SODAVILLE 1589 bool "Intel Sodaville GPIO support" 1590 depends on X86 && OF 1591 select GPIO_GENERIC 1592 select GENERIC_IRQ_CHIP 1593 help 1594 Say Y here to support Intel Sodaville GPIO. 1595 1596endmenu 1597 1598menu "SPI GPIO expanders" 1599 depends on SPI_MASTER 1600 1601config GPIO_74X164 1602 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1603 depends on OF_GPIO 1604 help 1605 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1606 shift registers. This driver can be used to provide access 1607 to more GPIO outputs. 1608 1609config GPIO_MAX3191X 1610 tristate "Maxim MAX3191x industrial serializer" 1611 select CRC8 1612 help 1613 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1614 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1615 chip to make 8 digital 24V inputs available via SPI. Supports 1616 CRC checksums to guard against electromagnetic interference, 1617 as well as undervoltage and overtemperature detection. 1618 1619config GPIO_MAX7301 1620 tristate "Maxim MAX7301 GPIO expander" 1621 select GPIO_MAX730X 1622 help 1623 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1624 1625config GPIO_MC33880 1626 tristate "Freescale MC33880 high-side/low-side switch" 1627 help 1628 SPI driver for Freescale MC33880 high-side/low-side switch. 1629 This provides GPIO interface supporting inputs and outputs. 1630 1631config GPIO_PISOSR 1632 tristate "Generic parallel-in/serial-out shift register" 1633 help 1634 GPIO driver for SPI compatible parallel-in/serial-out shift 1635 registers. These are input only devices. 1636 1637config GPIO_XRA1403 1638 tristate "EXAR XRA1403 16-bit GPIO expander" 1639 select REGMAP_SPI 1640 help 1641 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1642 1643config GPIO_MOXTET 1644 tristate "Turris Mox Moxtet bus GPIO expander" 1645 depends on MOXTET 1646 help 1647 Say yes here if you are building for the Turris Mox router. 1648 This is the driver needed for configuring the GPIOs via the Moxtet 1649 bus. For example the Mox module with SFP cage needs this driver 1650 so that phylink can use corresponding GPIOs. 1651 1652endmenu 1653 1654menu "USB GPIO expanders" 1655 depends on USB 1656 1657config GPIO_VIPERBOARD 1658 tristate "Viperboard GPIO a & b support" 1659 depends on MFD_VIPERBOARD 1660 help 1661 Say yes here to access the GPIO signals of Nano River 1662 Technologies Viperboard. There are two GPIO chips on the 1663 board: gpioa and gpiob. 1664 See viperboard API specification and Nano 1665 River Tech's viperboard.h for detailed meaning 1666 of the module parameters. 1667 1668endmenu 1669 1670menu "Virtual GPIO drivers" 1671 1672config GPIO_AGGREGATOR 1673 tristate "GPIO Aggregator" 1674 help 1675 Say yes here to enable the GPIO Aggregator, which provides a way to 1676 aggregate existing GPIO lines into a new virtual GPIO chip. 1677 This can serve the following purposes: 1678 - Assign permissions for a collection of GPIO lines to a user, 1679 - Export a collection of GPIO lines to a virtual machine, 1680 - Provide a generic driver for a GPIO-operated device in an 1681 industrial control context, to be operated from userspace using 1682 the GPIO chardev interface. 1683 1684config GPIO_MOCKUP 1685 tristate "GPIO Testing Driver" 1686 select IRQ_SIM 1687 help 1688 This enables GPIO Testing driver, which provides a way to test GPIO 1689 subsystem through sysfs (or char device) and debugfs. 1690 User could use it through the script in 1691 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1692 it. 1693 1694config GPIO_VIRTIO 1695 tristate "VirtIO GPIO support" 1696 depends on VIRTIO 1697 select GPIOLIB_IRQCHIP 1698 help 1699 Say Y here to enable guest support for virtio-based GPIO controllers. 1700 1701 These virtual GPIOs can be routed to real GPIOs or attached to 1702 simulators on the host (like QEMU). 1703 1704config GPIO_SIM 1705 tristate "GPIO Simulator Module" 1706 select IRQ_SIM 1707 select CONFIGFS_FS 1708 help 1709 This enables the GPIO simulator - a configfs-based GPIO testing 1710 driver. 1711 1712endmenu 1713 1714endif 1715