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