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)" 63 depends on SYSFS 64 help 65 Say Y here to add the legacy sysfs interface for GPIOs. 66 67 This ABI is deprecated. If you want to use GPIO from userspace, 68 use the character device /dev/gpiochipN with the appropriate 69 ioctl() operations instead. 70 71config GPIO_CDEV 72 bool 73 prompt "Character device (/dev/gpiochipN) support" if EXPERT 74 default y 75 help 76 Say Y here to add the character device /dev/gpiochipN interface 77 for GPIOs. The character device allows userspace to control GPIOs 78 using ioctl() operations. 79 80 Only say N if you are sure that the GPIO character device is not 81 required. 82 83 If unsure, say Y. 84 85config GPIO_CDEV_V1 86 bool "Support GPIO ABI Version 1" 87 default y 88 depends on GPIO_CDEV 89 help 90 Say Y here to support version 1 of the GPIO CDEV ABI. 91 92 This ABI version is deprecated. 93 Please use the latest ABI for new developments. 94 95 If unsure, say Y. 96 97config GPIO_GENERIC 98 depends on HAS_IOMEM # Only for IOMEM drivers 99 tristate 100 101config GPIO_REGMAP 102 depends on REGMAP 103 tristate 104 105# put drivers in the right section, in alphabetical order 106 107# This symbol is selected by both I2C and SPI expanders 108config GPIO_MAX730X 109 tristate 110 111menu "Memory mapped GPIO drivers" 112 depends on HAS_IOMEM 113 114config GPIO_74XX_MMIO 115 tristate "GPIO driver for 74xx-ICs with MMIO access" 116 depends on OF_GPIO 117 select GPIO_GENERIC 118 help 119 Say yes here to support GPIO functionality for 74xx-compatible ICs 120 with MMIO access. Compatible models include: 121 1 bit: 741G125 (Input), 741G74 (Output) 122 2 bits: 742G125 (Input), 7474 (Output) 123 4 bits: 74125 (Input), 74175 (Output) 124 6 bits: 74365 (Input), 74174 (Output) 125 8 bits: 74244 (Input), 74273 (Output) 126 16 bits: 741624 (Input), 7416374 (Output) 127 128config GPIO_ALTERA 129 tristate "Altera GPIO" 130 depends on OF_GPIO 131 select GPIOLIB_IRQCHIP 132 help 133 Say Y or M here to build support for the Altera PIO device. 134 135 If driver is built as a module it will be called gpio-altera. 136 137config GPIO_AMDPT 138 tristate "AMD Promontory GPIO support" 139 depends on ACPI 140 select GPIO_GENERIC 141 help 142 driver for GPIO functionality on Promontory IOHub 143 Require ACPI ASL code to enumerate as a platform device. 144 145config GPIO_ASPEED 146 tristate "Aspeed GPIO support" 147 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 148 select GPIOLIB_IRQCHIP 149 help 150 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 151 152config GPIO_ASPEED_SGPIO 153 bool "Aspeed SGPIO support" 154 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 155 select GPIO_GENERIC 156 select GPIOLIB_IRQCHIP 157 help 158 Say Y here to support Aspeed AST2500 SGPIO functionality. 159 160config GPIO_ATH79 161 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 162 default y if ATH79 163 depends on ATH79 || COMPILE_TEST 164 select GPIO_GENERIC 165 select GPIOLIB_IRQCHIP 166 help 167 Select this option to enable GPIO driver for 168 Atheros AR71XX/AR724X/AR913X SoC devices. 169 170config GPIO_RASPBERRYPI_EXP 171 tristate "Raspberry Pi 3 GPIO Expander" 172 default RASPBERRYPI_FIRMWARE 173 depends on OF_GPIO 174 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only 175 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE. 176 depends on (ARCH_BCM2835 && RASPBERRYPI_FIRMWARE) || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) 177 help 178 Turn on GPIO support for the expander on Raspberry Pi 3 boards, using 179 the firmware mailbox to communicate with VideoCore on BCM283x chips. 180 181config GPIO_BCM_KONA 182 bool "Broadcom Kona GPIO" 183 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 184 help 185 Turn on GPIO support for Broadcom "Kona" chips. 186 187config GPIO_BCM_XGS_IPROC 188 tristate "BRCM XGS iProc GPIO support" 189 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) 190 select GPIO_GENERIC 191 select GPIOLIB_IRQCHIP 192 default ARCH_BCM_IPROC 193 help 194 Say yes here to enable GPIO support for Broadcom XGS iProc SoCs. 195 196config GPIO_BRCMSTB 197 tristate "BRCMSTB GPIO support" 198 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 199 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 200 select GPIO_GENERIC 201 select IRQ_DOMAIN 202 help 203 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 204 205config GPIO_CADENCE 206 tristate "Cadence GPIO support" 207 depends on OF_GPIO 208 select GPIO_GENERIC 209 select GPIOLIB_IRQCHIP 210 help 211 Say yes here to enable support for Cadence GPIO controller. 212 213config GPIO_CLPS711X 214 tristate "CLPS711X GPIO support" 215 depends on ARCH_CLPS711X || COMPILE_TEST 216 select GPIO_GENERIC 217 help 218 Say yes here to support GPIO on CLPS711X SoCs. 219 220config GPIO_DAVINCI 221 bool "TI Davinci/Keystone GPIO support" 222 default y if ARCH_DAVINCI 223 depends on (ARM || ARM64) && (ARCH_DAVINCI || ARCH_KEYSTONE || ARCH_K3) 224 help 225 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 226 227config GPIO_DWAPB 228 tristate "Synopsys DesignWare APB GPIO driver" 229 select GPIO_GENERIC 230 select GPIOLIB_IRQCHIP 231 help 232 Say Y or M here to build support for the Synopsys DesignWare APB 233 GPIO block. 234 235config GPIO_EIC_SPRD 236 tristate "Spreadtrum EIC support" 237 depends on ARCH_SPRD || COMPILE_TEST 238 depends on OF_GPIO 239 select GPIOLIB_IRQCHIP 240 help 241 Say yes here to support Spreadtrum EIC device. 242 243config GPIO_EM 244 tristate "Emma Mobile GPIO" 245 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 246 help 247 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 248 249config GPIO_EP93XX 250 def_bool y 251 depends on ARCH_EP93XX 252 select GPIO_GENERIC 253 select GPIOLIB_IRQCHIP 254 255config GPIO_EXAR 256 tristate "Support for GPIO pins on XR17V352/354/358" 257 depends on SERIAL_8250_EXAR 258 help 259 Selecting this option will enable handling of GPIO pins present 260 on Exar XR17V352/354/358 chips. 261 262config GPIO_GE_FPGA 263 bool "GE FPGA based GPIO" 264 depends on GE_FPGA 265 select GPIO_GENERIC 266 help 267 Support for common GPIO functionality provided on some GE Single Board 268 Computers. 269 270 This driver provides basic support (configure as input or output, read 271 and write pin state) for GPIO implemented in a number of GE single 272 board computers. 273 274config GPIO_FTGPIO010 275 bool "Faraday FTGPIO010 GPIO" 276 depends on OF_GPIO 277 select GPIO_GENERIC 278 select GPIOLIB_IRQCHIP 279 default (ARCH_GEMINI || ARCH_MOXART) 280 help 281 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 282 Cortina systems Gemini platforms, Moxa ART and others. 283 284config GPIO_GENERIC_PLATFORM 285 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 286 select GPIO_GENERIC 287 help 288 Say yes here to support basic platform_device memory-mapped GPIO controllers. 289 290config GPIO_GRGPIO 291 tristate "Aeroflex Gaisler GRGPIO support" 292 depends on OF_GPIO 293 select GPIO_GENERIC 294 select IRQ_DOMAIN 295 help 296 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 297 VHDL IP core library. 298 299config GPIO_HLWD 300 tristate "Nintendo Wii (Hollywood) GPIO" 301 depends on OF_GPIO 302 select GPIO_GENERIC 303 select GPIOLIB_IRQCHIP 304 help 305 Select this to support the GPIO controller of the Nintendo Wii. 306 307 If unsure, say N. 308 309config GPIO_ICH 310 tristate "Intel ICH GPIO" 311 depends on PCI && X86 312 select MFD_CORE 313 select LPC_ICH 314 help 315 Say yes here to support the GPIO functionality of a number of Intel 316 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 317 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 318 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 319 320 If unsure, say N. 321 322config GPIO_IOP 323 tristate "Intel IOP GPIO" 324 depends on ARCH_IOP32X || COMPILE_TEST 325 select GPIO_GENERIC 326 help 327 Say yes here to support the GPIO functionality of a number of Intel 328 IOP32X or IOP33X. 329 330 If unsure, say N. 331 332config GPIO_IXP4XX 333 bool "Intel IXP4xx GPIO" 334 depends on ARM # For <asm/mach-types.h> 335 depends on ARCH_IXP4XX 336 select GPIO_GENERIC 337 select GPIOLIB_IRQCHIP 338 select IRQ_DOMAIN_HIERARCHY 339 help 340 Say yes here to support the GPIO functionality of a number of Intel 341 IXP4xx series of chips. 342 343 If unsure, say N. 344config GPIO_LOGICVC 345 tristate "Xylon LogiCVC GPIO support" 346 depends on MFD_SYSCON && OF 347 help 348 Say yes here to support GPIO functionality of the Xylon LogiCVC 349 programmable logic block. 350 351config GPIO_LOONGSON 352 bool "Loongson-2/3 GPIO support" 353 depends on CPU_LOONGSON2EF || CPU_LOONGSON64 354 help 355 driver for GPIO functionality on Loongson-2F/3A/3B processors. 356 357config GPIO_LPC18XX 358 tristate "NXP LPC18XX/43XX GPIO support" 359 default y if ARCH_LPC18XX 360 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 361 select IRQ_DOMAIN_HIERARCHY 362 help 363 Select this option to enable GPIO driver for 364 NXP LPC18XX/43XX devices. 365 366config GPIO_LPC32XX 367 tristate "NXP LPC32XX GPIO support" 368 depends on OF_GPIO && (ARCH_LPC32XX || COMPILE_TEST) 369 help 370 Select this option to enable GPIO driver for 371 NXP LPC32XX devices. 372 373config GPIO_MB86S7X 374 tristate "GPIO support for Fujitsu MB86S7x Platforms" 375 help 376 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 377 378config GPIO_MENZ127 379 tristate "MEN 16Z127 GPIO support" 380 depends on MCB 381 select GPIO_GENERIC 382 help 383 Say yes here to support the MEN 16Z127 GPIO Controller 384 385config GPIO_MM_LANTIQ 386 bool "Lantiq Memory mapped GPIOs" 387 depends on LANTIQ && SOC_XWAY 388 help 389 This enables support for memory mapped GPIOs on the External Bus Unit 390 (EBU) found on Lantiq SoCs. The gpios are output only as they are 391 created by attaching a 16bit latch to the bus. 392 393config GPIO_MPC5200 394 def_bool y 395 depends on PPC_MPC52xx 396 397config GPIO_MPC8XXX 398 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 399 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 400 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 401 COMPILE_TEST 402 select GPIO_GENERIC 403 select IRQ_DOMAIN 404 help 405 Say Y here if you're going to use hardware that connects to the 406 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 407 408config GPIO_MT7621 409 bool "Mediatek MT7621 GPIO Support" 410 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 411 depends on OF_GPIO 412 select GPIO_GENERIC 413 select GPIOLIB_IRQCHIP 414 help 415 Say yes here to support the Mediatek MT7621 SoC GPIO device 416 417config GPIO_MVEBU 418 def_bool y 419 depends on PLAT_ORION || ARCH_MVEBU 420 depends on OF_GPIO 421 select GENERIC_IRQ_CHIP 422 select REGMAP_MMIO 423 424config GPIO_MXC 425 tristate "i.MX GPIO support" 426 depends on ARCH_MXC || COMPILE_TEST 427 select GPIO_GENERIC 428 select GENERIC_IRQ_CHIP 429 430config GPIO_MXS 431 bool "Freescale MXS GPIO support" if COMPILE_TEST 432 depends on ARCH_MXS || COMPILE_TEST 433 default y if ARCH_MXS 434 select GPIO_GENERIC 435 select GENERIC_IRQ_CHIP 436 437config GPIO_OCTEON 438 tristate "Cavium OCTEON GPIO" 439 depends on CAVIUM_OCTEON_SOC 440 default y 441 help 442 Say yes here to support the on-chip GPIO lines on the OCTEON 443 family of SOCs. 444 445config GPIO_OMAP 446 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 447 default y if ARCH_OMAP 448 depends on ARM 449 select GENERIC_IRQ_CHIP 450 select GPIOLIB_IRQCHIP 451 help 452 Say yes here to enable GPIO support for TI OMAP SoCs. 453 454config GPIO_PL061 455 tristate "PrimeCell PL061 GPIO support" 456 depends on ARM_AMBA 457 select IRQ_DOMAIN 458 select GPIOLIB_IRQCHIP 459 help 460 Say yes here to support the PrimeCell PL061 GPIO device 461 462config GPIO_PMIC_EIC_SPRD 463 tristate "Spreadtrum PMIC EIC support" 464 depends on MFD_SC27XX_PMIC || COMPILE_TEST 465 depends on OF_GPIO 466 select GPIOLIB_IRQCHIP 467 help 468 Say yes here to support Spreadtrum PMIC EIC device. 469 470config GPIO_PXA 471 bool "PXA GPIO support" 472 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST 473 help 474 Say yes here to support the PXA GPIO device 475 476config GPIO_RCAR 477 tristate "Renesas R-Car GPIO" 478 depends on ARCH_RENESAS || COMPILE_TEST 479 select GPIOLIB_IRQCHIP 480 help 481 Say yes here to support GPIO on Renesas R-Car SoCs. 482 483config GPIO_RDA 484 bool "RDA Micro GPIO controller support" 485 depends on ARCH_RDA || COMPILE_TEST 486 depends on OF_GPIO 487 select GPIO_GENERIC 488 select GPIOLIB_IRQCHIP 489 help 490 Say Y here to support RDA Micro GPIO controller. 491 492config GPIO_REG 493 bool 494 help 495 A 32-bit single register GPIO fixed in/out implementation. This 496 can be used to represent any register as a set of GPIO signals. 497 498config GPIO_ROCKCHIP 499 tristate "Rockchip GPIO support" 500 depends on ARCH_ROCKCHIP || COMPILE_TEST 501 select GPIOLIB_IRQCHIP 502 default ARCH_ROCKCHIP 503 help 504 Say yes here to support GPIO on Rockchip SoCs. 505 506config GPIO_SAMA5D2_PIOBU 507 tristate "SAMA5D2 PIOBU GPIO support" 508 depends on MFD_SYSCON 509 depends on OF_GPIO 510 select GPIO_SYSCON 511 help 512 Say yes here to use the PIOBU pins as GPIOs. 513 514 PIOBU pins on the SAMA5D2 can be used as GPIOs. 515 The difference from regular GPIOs is that they 516 maintain their value during backup/self-refresh. 517 518config GPIO_SIFIVE 519 bool "SiFive GPIO support" 520 depends on OF_GPIO 521 select IRQ_DOMAIN_HIERARCHY 522 select GPIO_GENERIC 523 select GPIOLIB_IRQCHIP 524 select REGMAP_MMIO 525 help 526 Say yes here to support the GPIO device on SiFive SoCs. 527 528config GPIO_SIOX 529 tristate "SIOX GPIO support" 530 depends on SIOX 531 select GPIOLIB_IRQCHIP 532 help 533 Say yes here to support SIOX I/O devices. These are units connected 534 via a SIOX bus and have a number of fixed-direction I/O lines. 535 536config GPIO_SNPS_CREG 537 bool "Synopsys GPIO via CREG (Control REGisters) driver" 538 depends on ARC || COMPILE_TEST 539 depends on OF_GPIO 540 help 541 This driver supports GPIOs via CREG on various Synopsys SoCs. 542 This is a single-register MMIO GPIO driver for complex cases 543 where only several fields in register belong to GPIO lines and 544 each GPIO line owns a field with different length and on/off value. 545 546config GPIO_SPEAR_SPICS 547 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 548 depends on PLAT_SPEAR 549 select GENERIC_IRQ_CHIP 550 help 551 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 552 553config GPIO_SPRD 554 tristate "Spreadtrum GPIO support" 555 depends on ARCH_SPRD || COMPILE_TEST 556 depends on OF_GPIO 557 select GPIOLIB_IRQCHIP 558 help 559 Say yes here to support Spreadtrum GPIO device. 560 561config GPIO_STA2X11 562 bool "STA2x11/ConneXt GPIO support" 563 depends on MFD_STA2X11 564 select GENERIC_IRQ_CHIP 565 help 566 Say yes here to support the STA2x11/ConneXt GPIO device. 567 The GPIO module has 128 GPIO pins with alternate functions. 568 569config GPIO_STP_XWAY 570 bool "XWAY STP GPIOs" 571 depends on SOC_XWAY || COMPILE_TEST 572 depends on OF_GPIO 573 help 574 This enables support for the Serial To Parallel (STP) unit found on 575 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 576 that can be up to 24 bit. This peripheral is aimed at driving leds. 577 Some of the gpios/leds can be auto updated by the soc with dsl and 578 phy status. 579 580config GPIO_SYSCON 581 tristate "GPIO based on SYSCON" 582 depends on MFD_SYSCON && OF 583 help 584 Say yes here to support GPIO functionality though SYSCON driver. 585 586config GPIO_TB10X 587 bool 588 select GPIO_GENERIC 589 select GENERIC_IRQ_CHIP 590 select OF_GPIO 591 592config GPIO_TEGRA 593 bool "NVIDIA Tegra GPIO support" 594 default ARCH_TEGRA 595 depends on ARCH_TEGRA || COMPILE_TEST 596 depends on OF_GPIO 597 help 598 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 599 600config GPIO_TEGRA186 601 tristate "NVIDIA Tegra186 GPIO support" 602 default ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC 603 depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST 604 depends on OF_GPIO 605 select GPIOLIB_IRQCHIP 606 select IRQ_DOMAIN_HIERARCHY 607 help 608 Say yes here to support GPIO pins on NVIDIA Tegra186 SoCs. 609 610config GPIO_TS4800 611 tristate "TS-4800 DIO blocks and compatibles" 612 depends on OF_GPIO 613 depends on SOC_IMX51 || COMPILE_TEST 614 select GPIO_GENERIC 615 help 616 This driver support TS-4800 FPGA GPIO controllers. 617 618config GPIO_THUNDERX 619 tristate "Cavium ThunderX/OCTEON-TX GPIO" 620 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 621 depends on PCI_MSI 622 select GPIOLIB_IRQCHIP 623 select IRQ_DOMAIN_HIERARCHY 624 select IRQ_FASTEOI_HIERARCHY_HANDLERS 625 help 626 Say yes here to support the on-chip GPIO lines on the ThunderX 627 and OCTEON-TX families of SoCs. 628 629config GPIO_UNIPHIER 630 tristate "UniPhier GPIO support" 631 depends on ARCH_UNIPHIER || COMPILE_TEST 632 depends on OF_GPIO 633 select IRQ_DOMAIN_HIERARCHY 634 help 635 Say yes here to support UniPhier GPIOs. 636 637config GPIO_VF610 638 def_bool y 639 depends on ARCH_MXC && SOC_VF610 640 select GPIOLIB_IRQCHIP 641 help 642 Say yes here to support Vybrid vf610 GPIOs. 643 644config GPIO_VR41XX 645 tristate "NEC VR4100 series General-purpose I/O Uint support" 646 depends on CPU_VR41XX 647 help 648 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 649 650config GPIO_VX855 651 tristate "VIA VX855/VX875 GPIO" 652 depends on (X86 || COMPILE_TEST) && PCI 653 select MFD_CORE 654 select MFD_VX855 655 help 656 Support access to the VX855/VX875 GPIO lines through the gpio library. 657 658 This driver provides common support for accessing the device, 659 additional drivers must be enabled in order to use the 660 functionality of the device. 661 662config GPIO_WCD934X 663 tristate "Qualcomm Technologies Inc WCD9340/WCD9341 gpio controller driver" 664 depends on MFD_WCD934X && OF_GPIO 665 help 666 This driver is to supprot GPIO block found on the Qualcomm Technologies 667 Inc WCD9340/WCD9341 Audio Codec. 668 669config GPIO_XGENE 670 bool "APM X-Gene GPIO controller support" 671 depends on ARM64 && OF_GPIO 672 help 673 This driver is to support the GPIO block within the APM X-Gene SoC 674 platform's generic flash controller. The GPIO pins are muxed with 675 the generic flash controller's address and data pins. Say yes 676 here to enable the GFC GPIO functionality. 677 678config GPIO_XGENE_SB 679 tristate "APM X-Gene GPIO standby controller support" 680 depends on (ARCH_XGENE || COMPILE_TEST) 681 select GPIO_GENERIC 682 select GPIOLIB_IRQCHIP 683 select IRQ_DOMAIN_HIERARCHY 684 help 685 This driver supports the GPIO block within the APM X-Gene 686 Standby Domain. Say yes here to enable the GPIO functionality. 687 688config GPIO_XILINX 689 tristate "Xilinx GPIO support" 690 help 691 Say yes here to support the Xilinx FPGA GPIO device 692 693config GPIO_XLP 694 tristate "Netlogic XLP GPIO support" 695 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 696 select GPIOLIB_IRQCHIP 697 help 698 This driver provides support for GPIO interface on Netlogic XLP MIPS64 699 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 700 XLP9XX and XLP5XX. The same GPIO controller block is also present in 701 Cavium's ThunderX2 CN99XX SoCs. 702 703 If unsure, say N. 704 705config GPIO_XTENSA 706 bool "Xtensa GPIO32 support" 707 depends on XTENSA 708 depends on HAVE_XTENSA_GPIO32 709 depends on !SMP 710 help 711 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 712 and EXPSTATE (output) ports 713 714config GPIO_ZEVIO 715 bool "LSI ZEVIO SoC memory mapped GPIOs" 716 depends on ARM && OF_GPIO 717 help 718 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 719 720config GPIO_ZYNQ 721 tristate "Xilinx Zynq GPIO support" 722 depends on ARCH_ZYNQ || ARCH_ZYNQMP 723 select GPIOLIB_IRQCHIP 724 help 725 Say yes here to support Xilinx Zynq GPIO controller. 726 727config GPIO_ZX 728 bool "ZTE ZX GPIO support" 729 depends on ARCH_ZX || COMPILE_TEST 730 select GPIOLIB_IRQCHIP 731 help 732 Say yes here to support the GPIO device on ZTE ZX SoCs. 733 734config GPIO_LOONGSON1 735 tristate "Loongson1 GPIO support" 736 depends on MACH_LOONGSON32 737 select GPIO_GENERIC 738 help 739 Say Y or M here to support GPIO on Loongson1 SoCs. 740 741config GPIO_AMD_FCH 742 tristate "GPIO support for AMD Fusion Controller Hub (G-series SOCs)" 743 help 744 This option enables driver for GPIO on AMDs Fusion Controller Hub, 745 as found on G-series SOCs (eg. GX-412TC) 746 747 Note: This driver doesn't registers itself automatically, as it 748 needs to be provided with platform specific configuration. 749 (See eg. CONFIG_PCENGINES_APU2.) 750endmenu 751 752menu "Port-mapped I/O GPIO drivers" 753 depends on X86 # Unconditional I/O space access 754 755config GPIO_104_DIO_48E 756 tristate "ACCES 104-DIO-48E GPIO support" 757 depends on PC104 758 select ISA_BUS_API 759 select GPIOLIB_IRQCHIP 760 help 761 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 762 104-DIO-24E). The base port addresses for the devices may be 763 configured via the base module parameter. The interrupt line numbers 764 for the devices may be configured via the irq module parameter. 765 766config GPIO_104_IDIO_16 767 tristate "ACCES 104-IDIO-16 GPIO support" 768 depends on PC104 769 select ISA_BUS_API 770 select GPIOLIB_IRQCHIP 771 help 772 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 773 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 774 base port addresses for the devices may be configured via the base 775 module parameter. The interrupt line numbers for the devices may be 776 configured via the irq module parameter. 777 778config GPIO_104_IDI_48 779 tristate "ACCES 104-IDI-48 GPIO support" 780 depends on PC104 781 select ISA_BUS_API 782 select GPIOLIB_IRQCHIP 783 help 784 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 785 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 786 the devices may be configured via the base module parameter. The 787 interrupt line numbers for the devices may be configured via the irq 788 module parameter. 789 790config GPIO_F7188X 791 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 792 help 793 This option enables support for GPIOs found on Fintek Super-I/O 794 chips F71869, F71869A, F71882FG, F71889F and F81866. 795 796 To compile this driver as a module, choose M here: the module will 797 be called f7188x-gpio. 798 799config GPIO_GPIO_MM 800 tristate "Diamond Systems GPIO-MM GPIO support" 801 depends on PC104 802 select ISA_BUS_API 803 help 804 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 805 806 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 807 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 808 support for these 48 channels of digital I/O. 809 810 The base port addresses for the devices may be configured via the base 811 array module parameter. 812 813config GPIO_IT87 814 tristate "IT87xx GPIO support" 815 help 816 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 817 818 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 819 supports the IT8761E, IT8613, IT8620E, and IT8628E Super I/O chips as 820 well. 821 822 To compile this driver as a module, choose M here: the module will 823 be called gpio_it87 824 825config GPIO_SCH 826 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 827 depends on (X86 || COMPILE_TEST) && PCI 828 select MFD_CORE 829 select LPC_SCH 830 help 831 Say yes here to support GPIO interface on Intel Poulsbo SCH, 832 Intel Tunnel Creek processor, Intel Centerton processor or 833 Intel Quark X1000 SoC. 834 835 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 836 powered by the core power rail and are turned off during sleep 837 modes (S3 and higher). The remaining four GPIOs are powered by 838 the Intel SCH suspend power supply. These GPIOs remain 839 active during S3. The suspend powered GPIOs can be used to wake the 840 system from the Suspend-to-RAM state. 841 842 The Intel Tunnel Creek processor has 5 GPIOs powered by the 843 core power rail and 9 from suspend power supply. 844 845 The Intel Centerton processor has a total of 30 GPIO pins. 846 Twenty-one are powered by the core power rail and 9 from the 847 suspend power supply. 848 849 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 850 power well and 6 from the suspend power well. 851 852config GPIO_SCH311X 853 tristate "SMSC SCH311x SuperI/O GPIO" 854 help 855 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 856 SCH3116 "Super I/O" chipsets. 857 858 To compile this driver as a module, choose M here: the module will 859 be called gpio-sch311x. 860 861config GPIO_TS5500 862 tristate "TS-5500 DIO blocks and compatibles" 863 depends on TS5500 || COMPILE_TEST 864 help 865 This driver supports Digital I/O exposed by pin blocks found on some 866 Technologic Systems platforms. It includes, but is not limited to, 3 867 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 868 LCD port. 869 870config GPIO_WINBOND 871 tristate "Winbond Super I/O GPIO support" 872 select ISA_BUS_API 873 help 874 This option enables support for GPIOs found on Winbond Super I/O 875 chips. 876 Currently, only W83627UHG (also known as Nuvoton NCT6627UD) is 877 supported. 878 879 You will need to provide a module parameter "gpios", or a 880 boot-time parameter "gpio_winbond.gpios" with a bitmask of GPIO 881 ports to enable (bit 0 is GPIO1, bit 1 is GPIO2, etc.). 882 883 To compile this driver as a module, choose M here: the module will 884 be called gpio-winbond. 885 886config GPIO_WS16C48 887 tristate "WinSystems WS16C48 GPIO support" 888 select ISA_BUS_API 889 select GPIOLIB_IRQCHIP 890 help 891 Enables GPIO support for the WinSystems WS16C48. The base port 892 addresses for the devices may be configured via the base module 893 parameter. The interrupt line numbers for the devices may be 894 configured via the irq module parameter. 895 896endmenu 897 898menu "I2C GPIO expanders" 899 depends on I2C 900 901config GPIO_ADP5588 902 tristate "ADP5588 I2C GPIO expander" 903 help 904 This option enables support for 18 GPIOs found 905 on Analog Devices ADP5588 GPIO Expanders. 906 907config GPIO_ADP5588_IRQ 908 bool "Interrupt controller support for ADP5588" 909 depends on GPIO_ADP5588=y 910 select GPIOLIB_IRQCHIP 911 help 912 Say yes here to enable the adp5588 to be used as an interrupt 913 controller. It requires the driver to be built in the kernel. 914 915config GPIO_ADNP 916 tristate "Avionic Design N-bit GPIO expander" 917 depends on OF_GPIO 918 select GPIOLIB_IRQCHIP 919 help 920 This option enables support for N GPIOs found on Avionic Design 921 I2C GPIO expanders. The register space will be extended by powers 922 of two, so the controller will need to accommodate for that. For 923 example: if a controller provides 48 pins, 6 registers will be 924 enough to represent all pins, but the driver will assume a 925 register layout for 64 pins (8 registers). 926 927config GPIO_AW9110 928 tristate "AW9110 I2C GPIO expanders" 929 select GPIOLIB_IRQCHIP 930 select IRQ_DOMAIN 931 help 932 Say yes here to provide access to I2C 933 GPIO expanders used for additional digital outputs or inputs. 934 Your board setup code will need to declare the expanders in 935 use, and assign numbers to the GPIOs they expose. Those GPIOs 936 can then be used from drivers and other kernel code, just like 937 other GPIOs, but only accessible from task contexts. 938 939 This driver provides an in-kernel interface to those GPIOs using 940 platform-neutral GPIO calls. 941 942config GPIO_GW_PLD 943 tristate "Gateworks PLD GPIO Expander" 944 depends on OF_GPIO 945 help 946 Say yes here to provide access to the Gateworks I2C PLD GPIO 947 Expander. This is used at least on the Cambria GW2358-4. 948 949config GPIO_MAX7300 950 tristate "Maxim MAX7300 GPIO expander" 951 select GPIO_MAX730X 952 help 953 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 954 955config GPIO_MAX732X 956 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 957 help 958 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 959 Port Expanders. Each IO port on these chips has a fixed role of 960 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 961 Input and Output (designed by 'P'). The combinations are listed 962 below: 963 964 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 965 max7322 (4I4O), max7323 (4P4O) 966 967 16 bits: max7324 (8I8O), max7325 (8P8O), 968 max7326 (4I12O), max7327 (4P12O) 969 970 Board setup code must specify the model to use, and the start 971 number for these GPIOs. 972 973config GPIO_MAX732X_IRQ 974 bool "Interrupt controller support for MAX732x" 975 depends on GPIO_MAX732X=y 976 select GPIOLIB_IRQCHIP 977 help 978 Say yes here to enable the max732x to be used as an interrupt 979 controller. It requires the driver to be built in the kernel. 980 981config GPIO_MC9S08DZ60 982 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 983 depends on I2C=y && MACH_MX35_3DS 984 help 985 Select this to enable the MC9S08DZ60 GPIO driver 986 987config GPIO_PCA953X 988 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 989 select REGMAP_I2C 990 help 991 Say yes here to provide access to several register-oriented 992 SMBus I/O expanders, made mostly by NXP or TI. Compatible 993 models include: 994 995 4 bits: pca9536, pca9537 996 997 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 998 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 999 1000 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 1001 tca6416 1002 1003 24 bits: tca6424 1004 1005 40 bits: pca9505, pca9698 1006 1007config GPIO_PCA953X_IRQ 1008 bool "Interrupt controller support for PCA953x" 1009 depends on GPIO_PCA953X 1010 select GPIOLIB_IRQCHIP 1011 help 1012 Say yes here to enable the pca953x to be used as an interrupt 1013 controller. It requires the driver to be built in the kernel. 1014 1015config GPIO_PCA9570 1016 tristate "PCA9570 4-Bit I2C GPO expander" 1017 help 1018 Say yes here to enable the GPO driver for the NXP PCA9570 chip. 1019 1020 To compile this driver as a module, choose M here: the module will 1021 be called gpio-pca9570. 1022 1023config GPIO_PCF857X 1024 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 1025 select GPIOLIB_IRQCHIP 1026 select IRQ_DOMAIN 1027 help 1028 Say yes here to provide access to most "quasi-bidirectional" I2C 1029 GPIO expanders used for additional digital outputs or inputs. 1030 Most of these parts are from NXP, though TI is a second source for 1031 some of them. Compatible models include: 1032 1033 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 1034 pca9670, pca9672, pca9674, pca9674a, 1035 max7328, max7329 1036 1037 16 bits: pcf8575, pcf8575c, pca8575, 1038 pca9671, pca9673, pca9675 1039 1040 Your board setup code will need to declare the expanders in 1041 use, and assign numbers to the GPIOs they expose. Those GPIOs 1042 can then be used from drivers and other kernel code, just like 1043 other GPIOs, but only accessible from task contexts. 1044 1045 This driver provides an in-kernel interface to those GPIOs using 1046 platform-neutral GPIO calls. 1047 1048config GPIO_TPIC2810 1049 tristate "TPIC2810 8-Bit I2C GPO expander" 1050 help 1051 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 1052 1053 To compile this driver as a module, choose M here: the module will 1054 be called gpio-tpic2810. 1055 1056config GPIO_TS4900 1057 tristate "Technologic Systems FPGA I2C GPIO" 1058 depends on SOC_IMX6 || COMPILE_TEST 1059 select REGMAP_I2C 1060 help 1061 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 1062 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 1063 1064endmenu 1065 1066menu "MFD GPIO expanders" 1067 1068config GPIO_ADP5520 1069 tristate "GPIO Support for ADP5520 PMIC" 1070 depends on PMIC_ADP5520 1071 help 1072 This option enables support for on-chip GPIO found 1073 on Analog Devices ADP5520 PMICs. 1074 1075config GPIO_ALTERA_A10SR 1076 tristate "Altera Arria10 System Resource GPIO" 1077 depends on MFD_ALTERA_A10SR 1078 help 1079 Driver for Arria10 Development Kit GPIO expansion which 1080 includes reads of pushbuttons and DIP switches as well 1081 as writes to LEDs. 1082 1083config GPIO_ARIZONA 1084 tristate "Wolfson Microelectronics Arizona class devices" 1085 depends on MFD_ARIZONA 1086 help 1087 Support for GPIOs on Wolfson Arizona class devices. 1088 1089config GPIO_BD70528 1090 tristate "ROHM BD70528 GPIO support" 1091 depends on MFD_ROHM_BD70528 1092 help 1093 Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs 1094 available on the ROHM PMIC in total. The GPIOs can also 1095 generate interrupts. 1096 1097 This driver can also be built as a module. If so, the module 1098 will be called gpio-bd70528. 1099 1100config GPIO_BD71828 1101 tristate "ROHM BD71828 GPIO support" 1102 depends on MFD_ROHM_BD71828 1103 help 1104 Support for GPIOs on ROHM BD71828 PMIC. There are three GPIOs 1105 available on the ROHM PMIC in total. The GPIOs are limited to 1106 outputs only and pins must be configured to GPIO outputs by 1107 OTP. Enable this only if you want to use these pins as outputs. 1108 1109 This driver can also be built as a module. If so, the module 1110 will be called gpio-bd71828. 1111 1112config GPIO_BD9571MWV 1113 tristate "ROHM BD9571 GPIO support" 1114 depends on MFD_BD9571MWV 1115 help 1116 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 1117 available on the ROHM PMIC in total, both of which can also 1118 generate interrupts. 1119 1120 This driver can also be built as a module. If so, the module 1121 will be called gpio-bd9571mwv. 1122 1123config GPIO_CRYSTAL_COVE 1124 tristate "GPIO support for Crystal Cove PMIC" 1125 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 1126 select GPIOLIB_IRQCHIP 1127 help 1128 Support for GPIO pins on Crystal Cove PMIC. 1129 1130 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 1131 inside. 1132 1133 This driver can also be built as a module. If so, the module will be 1134 called gpio-crystalcove. 1135 1136config GPIO_CS5535 1137 tristate "AMD CS5535/CS5536 GPIO support" 1138 depends on X86 || MIPS || COMPILE_TEST 1139 depends on MFD_CS5535 1140 help 1141 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 1142 can be used for quite a number of things. The CS5535/6 is found on 1143 AMD Geode and Lemote Yeeloong devices. 1144 1145 If unsure, say N. 1146 1147config GPIO_DA9052 1148 tristate "Dialog DA9052 GPIO" 1149 depends on PMIC_DA9052 1150 help 1151 Say yes here to enable the GPIO driver for the DA9052 chip. 1152 1153config GPIO_DA9055 1154 tristate "Dialog Semiconductor DA9055 GPIO" 1155 depends on MFD_DA9055 1156 help 1157 Say yes here to enable the GPIO driver for the DA9055 chip. 1158 1159 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 1160 be controller by this driver. 1161 1162 If driver is built as a module it will be called gpio-da9055. 1163 1164config GPIO_DLN2 1165 tristate "Diolan DLN2 GPIO support" 1166 depends on MFD_DLN2 1167 select GPIOLIB_IRQCHIP 1168 1169 help 1170 Select this option to enable GPIO driver for the Diolan DLN2 1171 board. 1172 1173 This driver can also be built as a module. If so, the module 1174 will be called gpio-dln2. 1175 1176config HTC_EGPIO 1177 bool "HTC EGPIO support" 1178 depends on ARM 1179 help 1180 This driver supports the CPLD egpio chip present on 1181 several HTC phones. It provides basic support for input 1182 pins, output pins, and irqs. 1183 1184config GPIO_JANZ_TTL 1185 tristate "Janz VMOD-TTL Digital IO Module" 1186 depends on MFD_JANZ_CMODIO 1187 help 1188 This enables support for the Janz VMOD-TTL Digital IO module. 1189 This driver provides support for driving the pins in output 1190 mode only. Input mode is not supported. 1191 1192config GPIO_KEMPLD 1193 tristate "Kontron ETX / COMexpress GPIO" 1194 depends on MFD_KEMPLD 1195 help 1196 This enables support for the PLD GPIO interface on some Kontron ETX 1197 and COMexpress (ETXexpress) modules. 1198 1199 This driver can also be built as a module. If so, the module will be 1200 called gpio-kempld. 1201 1202config GPIO_LP3943 1203 tristate "TI/National Semiconductor LP3943 GPIO expander" 1204 depends on MFD_LP3943 1205 help 1206 GPIO driver for LP3943 MFD. 1207 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 1208 Open drain outputs are required for this usage. 1209 1210config GPIO_LP873X 1211 tristate "TI LP873X GPO" 1212 depends on MFD_TI_LP873X 1213 help 1214 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 1215 on LP873X PMICs. 1216 1217 This driver can also be built as a module. If so, the module will be 1218 called gpio-lp873x. 1219 1220config GPIO_LP87565 1221 tristate "TI LP87565 GPIO" 1222 depends on MFD_TI_LP87565 1223 help 1224 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 1225 on LP87565 PMICs. 1226 1227 This driver can also be built as a module. If so, the module will be 1228 called gpio-lp87565. 1229 1230config GPIO_MADERA 1231 tristate "Cirrus Logic Madera class codecs" 1232 depends on PINCTRL_MADERA 1233 help 1234 Support for GPIOs on Cirrus Logic Madera class codecs. 1235 1236config GPIO_MAX77620 1237 tristate "GPIO support for PMIC MAX77620 and MAX20024" 1238 depends on MFD_MAX77620 1239 select GPIOLIB_IRQCHIP 1240 help 1241 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 1242 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 1243 driver also provides interrupt support for each of the gpios. 1244 Say yes here to enable the max77620 to be used as gpio controller. 1245 1246config GPIO_MAX77650 1247 tristate "Maxim MAX77650/77651 GPIO support" 1248 depends on MFD_MAX77650 1249 help 1250 GPIO driver for MAX77650/77651 PMIC from Maxim Semiconductor. 1251 These chips have a single pin that can be configured as GPIO. 1252 1253config GPIO_MSIC 1254 bool "Intel MSIC mixed signal gpio support" 1255 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC 1256 help 1257 Enable support for GPIO on intel MSIC controllers found in 1258 intel MID devices 1259 1260config GPIO_PALMAS 1261 bool "TI PALMAS series PMICs GPIO" 1262 depends on MFD_PALMAS 1263 help 1264 Select this option to enable GPIO driver for the TI PALMAS 1265 series chip family. 1266 1267config GPIO_RC5T583 1268 bool "RICOH RC5T583 GPIO" 1269 depends on MFD_RC5T583 1270 help 1271 Select this option to enable GPIO driver for the Ricoh RC5T583 1272 chip family. 1273 This driver provides the support for driving/reading the gpio pins 1274 of RC5T583 device through standard gpio library. 1275 1276config GPIO_SL28CPLD 1277 tristate "Kontron sl28cpld GPIO support" 1278 depends on MFD_SL28CPLD || COMPILE_TEST 1279 select GPIO_REGMAP 1280 select GPIOLIB_IRQCHIP 1281 select REGMAP_IRQ 1282 help 1283 This enables support for the GPIOs found on the Kontron sl28 CPLD. 1284 1285 This driver can also be built as a module. If so, the module will be 1286 called gpio-sl28cpld. 1287 1288config GPIO_STMPE 1289 bool "STMPE GPIOs" 1290 depends on MFD_STMPE 1291 depends on OF_GPIO 1292 select GPIOLIB_IRQCHIP 1293 help 1294 This enables support for the GPIOs found on the STMPE I/O 1295 Expanders. 1296 1297config GPIO_TC3589X 1298 bool "TC3589X GPIOs" 1299 depends on MFD_TC3589X 1300 depends on OF_GPIO 1301 select GPIOLIB_IRQCHIP 1302 help 1303 This enables support for the GPIOs found on the TC3589X 1304 I/O Expander. 1305 1306config GPIO_TIMBERDALE 1307 bool "Support for timberdale GPIO IP" 1308 depends on MFD_TIMBERDALE 1309 help 1310 Add support for the GPIO IP in the timberdale FPGA. 1311 1312config GPIO_TPS65086 1313 tristate "TI TPS65086 GPO" 1314 depends on MFD_TPS65086 1315 help 1316 This driver supports the GPO on TI TPS65086x PMICs. 1317 1318config GPIO_TPS65218 1319 tristate "TPS65218 GPIO" 1320 depends on MFD_TPS65218 1321 help 1322 Select this option to enable GPIO driver for the TPS65218 1323 chip family. 1324 1325config GPIO_TPS6586X 1326 bool "TPS6586X GPIO" 1327 depends on MFD_TPS6586X 1328 help 1329 Select this option to enable GPIO driver for the TPS6586X 1330 chip family. 1331 1332config GPIO_TPS65910 1333 bool "TPS65910 GPIO" 1334 depends on MFD_TPS65910 1335 help 1336 Select this option to enable GPIO driver for the TPS65910 1337 chip family. 1338 1339config GPIO_TPS65912 1340 tristate "TI TPS65912 GPIO" 1341 depends on MFD_TPS65912 1342 help 1343 This driver supports TPS65912 gpio chip 1344 1345config GPIO_TPS68470 1346 bool "TPS68470 GPIO" 1347 depends on MFD_TPS68470 1348 help 1349 Select this option to enable GPIO driver for the TPS68470 1350 chip family. 1351 There are 7 GPIOs and few sensor related GPIOs supported 1352 by the TPS68470. While the 7 GPIOs can be configured as 1353 input or output as appropriate, the sensor related GPIOs 1354 are "output only" GPIOs. 1355 1356 This driver config is bool, as the GPIO functionality 1357 of the TPS68470 must be available before dependent 1358 drivers are loaded. 1359 1360config GPIO_TQMX86 1361 tristate "TQ-Systems QTMX86 GPIO" 1362 depends on MFD_TQMX86 || COMPILE_TEST 1363 depends on HAS_IOPORT_MAP 1364 select GPIOLIB_IRQCHIP 1365 help 1366 This driver supports GPIO on the TQMX86 IO controller. 1367 1368config GPIO_TWL4030 1369 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1370 depends on TWL4030_CORE 1371 help 1372 Say yes here to access the GPIO signals of various multi-function 1373 power management chips from Texas Instruments. 1374 1375config GPIO_TWL6040 1376 tristate "TWL6040 GPO" 1377 depends on TWL6040_CORE 1378 help 1379 Say yes here to access the GPO signals of twl6040 1380 audio chip from Texas Instruments. 1381 1382config GPIO_UCB1400 1383 tristate "Philips UCB1400 GPIO" 1384 depends on UCB1400_CORE 1385 help 1386 This enables support for the Philips UCB1400 GPIO pins. 1387 The UCB1400 is an AC97 audio codec. 1388 1389config GPIO_WHISKEY_COVE 1390 tristate "GPIO support for Whiskey Cove PMIC" 1391 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1392 select GPIOLIB_IRQCHIP 1393 help 1394 Support for GPIO pins on Whiskey Cove PMIC. 1395 1396 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC 1397 inside. 1398 1399 This driver can also be built as a module. If so, the module will be 1400 called gpio-wcove. 1401 1402config GPIO_WM831X 1403 tristate "WM831x GPIOs" 1404 depends on MFD_WM831X 1405 help 1406 Say yes here to access the GPIO signals of WM831x power management 1407 chips from Wolfson Microelectronics. 1408 1409config GPIO_WM8350 1410 tristate "WM8350 GPIOs" 1411 depends on MFD_WM8350 1412 help 1413 Say yes here to access the GPIO signals of WM8350 power management 1414 chips from Wolfson Microelectronics. 1415 1416config GPIO_WM8994 1417 tristate "WM8994 GPIOs" 1418 depends on MFD_WM8994 1419 help 1420 Say yes here to access the GPIO signals of WM8994 audio hub 1421 CODECs from Wolfson Microelectronics. 1422 1423endmenu 1424 1425menu "PCI GPIO expanders" 1426 depends on PCI 1427 1428config GPIO_AMD8111 1429 tristate "AMD 8111 GPIO driver" 1430 depends on X86 || COMPILE_TEST 1431 depends on HAS_IOPORT_MAP 1432 help 1433 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1434 1435 Note, that usually system firmware/ACPI handles GPIO pins on their 1436 own and users might easily break their systems with uncarefull usage 1437 of this driver! 1438 1439 If unsure, say N 1440 1441config GPIO_BT8XX 1442 tristate "BT8XX GPIO abuser" 1443 depends on VIDEO_BT848=n 1444 help 1445 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1446 as a cheap PCI GPIO card. 1447 1448 This chip can be found on Miro, Hauppauge and STB TV-cards. 1449 1450 The card needs to be physically altered for using it as a 1451 GPIO card. For more information on how to build a GPIO card 1452 from a BT8xx TV card, see the documentation file at 1453 Documentation/driver-api/gpio/bt8xxgpio.rst 1454 1455 If unsure, say N. 1456 1457config GPIO_INTEL_MID 1458 bool "Intel MID GPIO support" 1459 depends on X86_INTEL_MID 1460 select GPIOLIB_IRQCHIP 1461 help 1462 Say Y here to support Intel MID GPIO. 1463 1464config GPIO_MERRIFIELD 1465 tristate "Intel Merrifield GPIO support" 1466 depends on X86_INTEL_MID 1467 select GPIOLIB_IRQCHIP 1468 help 1469 Say Y here to support Intel Merrifield GPIO. 1470 1471config GPIO_MLXBF 1472 tristate "Mellanox BlueField SoC GPIO" 1473 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1474 select GPIO_GENERIC 1475 help 1476 Say Y here if you want GPIO support on Mellanox BlueField SoC. 1477 1478config GPIO_MLXBF2 1479 tristate "Mellanox BlueField 2 SoC GPIO" 1480 depends on (MELLANOX_PLATFORM && ARM64 && ACPI) || (64BIT && COMPILE_TEST) 1481 select GPIO_GENERIC 1482 help 1483 Say Y here if you want GPIO support on Mellanox BlueField 2 SoC. 1484 1485config GPIO_ML_IOH 1486 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1487 depends on X86 || COMPILE_TEST 1488 select GENERIC_IRQ_CHIP 1489 help 1490 ML7213 is companion chip for Intel Atom E6xx series. 1491 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1492 Hub) which is for IVI(In-Vehicle Infotainment) use. 1493 This driver can access the IOH's GPIO device. 1494 1495config GPIO_PCH 1496 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1497 depends on X86_32 || MIPS || COMPILE_TEST 1498 select GENERIC_IRQ_CHIP 1499 help 1500 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1501 which is an IOH(Input/Output Hub) for x86 embedded processor. 1502 This driver can access PCH GPIO device. 1503 1504 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1505 Output Hub), ML7223 and ML7831. 1506 ML7223 IOH is for MP(Media Phone) use. 1507 ML7831 IOH is for general purpose use. 1508 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1509 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1510 1511config GPIO_PCI_IDIO_16 1512 tristate "ACCES PCI-IDIO-16 GPIO support" 1513 select GPIOLIB_IRQCHIP 1514 help 1515 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1516 generated when any of the inputs change state (low to high or high to 1517 low). Input filter control is not supported by this driver, and the 1518 input filters are deactivated by this driver. 1519 1520config GPIO_PCIE_IDIO_24 1521 tristate "ACCES PCIe-IDIO-24 GPIO support" 1522 select GPIOLIB_IRQCHIP 1523 help 1524 Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24, 1525 PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated 1526 when any of the inputs change state (low to high or high to low). 1527 Input filter control is not supported by this driver, and the input 1528 filters are deactivated by this driver. 1529 1530config GPIO_RDC321X 1531 tristate "RDC R-321x GPIO support" 1532 select MFD_CORE 1533 select MFD_RDC321X 1534 help 1535 Support for the RDC R321x SoC GPIOs over southbridge 1536 PCI configuration space. 1537 1538config GPIO_SODAVILLE 1539 bool "Intel Sodaville GPIO support" 1540 depends on X86 && OF 1541 select GPIO_GENERIC 1542 select GENERIC_IRQ_CHIP 1543 help 1544 Say Y here to support Intel Sodaville GPIO. 1545 1546endmenu 1547 1548menu "SPI GPIO expanders" 1549 depends on SPI_MASTER 1550 1551config GPIO_74X164 1552 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1553 depends on OF_GPIO 1554 help 1555 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1556 shift registers. This driver can be used to provide access 1557 to more gpio outputs. 1558 1559config GPIO_MAX3191X 1560 tristate "Maxim MAX3191x industrial serializer" 1561 select CRC8 1562 help 1563 GPIO driver for Maxim MAX31910, MAX31911, MAX31912, MAX31913, 1564 MAX31953 and MAX31963 industrial serializer, a daisy-chainable 1565 chip to make 8 digital 24V inputs available via SPI. Supports 1566 CRC checksums to guard against electromagnetic interference, 1567 as well as undervoltage and overtemperature detection. 1568 1569config GPIO_MAX7301 1570 tristate "Maxim MAX7301 GPIO expander" 1571 select GPIO_MAX730X 1572 help 1573 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1574 1575config GPIO_MC33880 1576 tristate "Freescale MC33880 high-side/low-side switch" 1577 help 1578 SPI driver for Freescale MC33880 high-side/low-side switch. 1579 This provides GPIO interface supporting inputs and outputs. 1580 1581config GPIO_PISOSR 1582 tristate "Generic parallel-in/serial-out shift register" 1583 help 1584 GPIO driver for SPI compatible parallel-in/serial-out shift 1585 registers. These are input only devices. 1586 1587config GPIO_XRA1403 1588 tristate "EXAR XRA1403 16-bit GPIO expander" 1589 select REGMAP_SPI 1590 help 1591 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1592 1593config GPIO_MOXTET 1594 tristate "Turris Mox Moxtet bus GPIO expander" 1595 depends on MOXTET 1596 help 1597 Say yes here if you are building for the Turris Mox router. 1598 This is the driver needed for configuring the GPIOs via the Moxtet 1599 bus. For example the Mox module with SFP cage needs this driver 1600 so that phylink can use corresponding GPIOs. 1601 1602endmenu 1603 1604menu "USB GPIO expanders" 1605 depends on USB 1606 1607config GPIO_VIPERBOARD 1608 tristate "Viperboard GPIO a & b support" 1609 depends on MFD_VIPERBOARD 1610 help 1611 Say yes here to access the GPIO signals of Nano River 1612 Technologies Viperboard. There are two GPIO chips on the 1613 board: gpioa and gpiob. 1614 See viperboard API specification and Nano 1615 River Tech's viperboard.h for detailed meaning 1616 of the module parameters. 1617 1618endmenu 1619 1620config GPIO_AGGREGATOR 1621 tristate "GPIO Aggregator" 1622 help 1623 Say yes here to enable the GPIO Aggregator, which provides a way to 1624 aggregate existing GPIO lines into a new virtual GPIO chip. 1625 This can serve the following purposes: 1626 - Assign permissions for a collection of GPIO lines to a user, 1627 - Export a collection of GPIO lines to a virtual machine, 1628 - Provide a generic driver for a GPIO-operated device in an 1629 industrial control context, to be operated from userspace using 1630 the GPIO chardev interface. 1631 1632config GPIO_MOCKUP 1633 tristate "GPIO Testing Driver" 1634 select IRQ_SIM 1635 help 1636 This enables GPIO Testing driver, which provides a way to test GPIO 1637 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS 1638 must be selected for this test. 1639 User could use it through the script in 1640 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 1641 it. 1642 1643endif 1644