1# 2# GPIO infrastructure and drivers 3# 4 5config ARCH_HAVE_CUSTOM_GPIO_H 6 bool 7 help 8 Selecting this config option from the architecture Kconfig allows 9 the architecture to provide a custom asm/gpio.h implementation 10 overriding the default implementations. New uses of this are 11 strongly discouraged. 12 13menuconfig GPIOLIB 14 bool "GPIO Support" 15 select ANON_INODES 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 OF_GPIO 26 def_bool y 27 depends on OF 28 depends on HAS_IOMEM 29 30config GPIO_ACPI 31 def_bool y 32 depends on ACPI 33 34config GPIOLIB_IRQCHIP 35 select IRQ_DOMAIN 36 bool 37 38config DEBUG_GPIO 39 bool "Debug GPIO calls" 40 depends on DEBUG_KERNEL 41 help 42 Say Y here to add some extra checks and diagnostics to GPIO calls. 43 These checks help ensure that GPIOs have been properly initialized 44 before they are used, and that sleeping calls are not made from 45 non-sleeping contexts. They can make bitbanged serial protocols 46 slower. The diagnostics help catch the type of setup errors 47 that are most common when setting up new platforms or boards. 48 49config GPIO_SYSFS 50 bool "/sys/class/gpio/... (sysfs interface)" 51 depends on SYSFS 52 help 53 Say Y here to add a sysfs interface for GPIOs. 54 55 This is mostly useful to work around omissions in a system's 56 kernel support. Those are common in custom and semicustom 57 hardware assembled using standard kernels with a minimum of 58 custom patches. In those cases, userspace code may import 59 a given GPIO from the kernel, if no kernel driver requested it. 60 61 Kernel drivers may also request that a particular GPIO be 62 exported to userspace; this can be useful when debugging. 63 64config GPIO_GENERIC 65 depends on HAS_IOMEM # Only for IOMEM drivers 66 tristate 67 68# put drivers in the right section, in alphabetical order 69 70# This symbol is selected by both I2C and SPI expanders 71config GPIO_MAX730X 72 tristate 73 74menu "Memory mapped GPIO drivers" 75 depends on HAS_IOMEM 76 77config GPIO_74XX_MMIO 78 tristate "GPIO driver for 74xx-ICs with MMIO access" 79 depends on OF_GPIO 80 select GPIO_GENERIC 81 help 82 Say yes here to support GPIO functionality for 74xx-compatible ICs 83 with MMIO access. Compatible models include: 84 1 bit: 741G125 (Input), 741G74 (Output) 85 2 bits: 742G125 (Input), 7474 (Output) 86 4 bits: 74125 (Input), 74175 (Output) 87 6 bits: 74365 (Input), 74174 (Output) 88 8 bits: 74244 (Input), 74273 (Output) 89 16 bits: 741624 (Input), 7416374 (Output) 90 91config GPIO_ALTERA 92 tristate "Altera GPIO" 93 depends on OF_GPIO 94 select GPIOLIB_IRQCHIP 95 help 96 Say Y or M here to build support for the Altera PIO device. 97 98 If driver is built as a module it will be called gpio-altera. 99 100config GPIO_AMDPT 101 tristate "AMD Promontory GPIO support" 102 depends on ACPI 103 select GPIO_GENERIC 104 help 105 driver for GPIO functionality on Promontory IOHub 106 Require ACPI ASL code to enumerate as a platform device. 107 108config GPIO_ASPEED 109 tristate "Aspeed GPIO support" 110 depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO 111 select GPIOLIB_IRQCHIP 112 help 113 Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers. 114 115config GPIO_ATH79 116 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 117 default y if ATH79 118 depends on ATH79 || COMPILE_TEST 119 select GPIO_GENERIC 120 select GPIOLIB_IRQCHIP 121 help 122 Select this option to enable GPIO driver for 123 Atheros AR71XX/AR724X/AR913X SoC devices. 124 125config GPIO_AXP209 126 tristate "X-Powers AXP209 PMIC GPIO Support" 127 depends on MFD_AXP20X 128 help 129 Say yes to enable GPIO support for the AXP209 PMIC 130 131config GPIO_BCM_KONA 132 bool "Broadcom Kona GPIO" 133 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 134 help 135 Turn on GPIO support for Broadcom "Kona" chips. 136 137config GPIO_BRCMSTB 138 tristate "BRCMSTB GPIO support" 139 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 140 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 141 select GPIO_GENERIC 142 select GPIOLIB_IRQCHIP 143 help 144 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 145 146config GPIO_CLPS711X 147 tristate "CLPS711X GPIO support" 148 depends on ARCH_CLPS711X || COMPILE_TEST 149 select GPIO_GENERIC 150 help 151 Say yes here to support GPIO on CLPS711X SoCs. 152 153config GPIO_DAVINCI 154 bool "TI Davinci/Keystone GPIO support" 155 default y if ARCH_DAVINCI 156 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 157 help 158 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 159 160config GPIO_DWAPB 161 tristate "Synopsys DesignWare APB GPIO driver" 162 select GPIO_GENERIC 163 select GENERIC_IRQ_CHIP 164 help 165 Say Y or M here to build support for the Synopsys DesignWare APB 166 GPIO block. 167 168config GPIO_EM 169 tristate "Emma Mobile GPIO" 170 depends on (ARCH_EMEV2 || COMPILE_TEST) && OF_GPIO 171 help 172 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 173 174config GPIO_EP93XX 175 def_bool y 176 depends on ARCH_EP93XX 177 select GPIO_GENERIC 178 179config GPIO_ETRAXFS 180 bool "Axis ETRAX FS General I/O" 181 depends on CRIS || COMPILE_TEST 182 depends on OF_GPIO 183 select GPIO_GENERIC 184 select GPIOLIB_IRQCHIP 185 help 186 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 187 188config GPIO_EXAR 189 tristate "Support for GPIO pins on XR17V352/354/358" 190 depends on SERIAL_8250_EXAR 191 help 192 Selecting this option will enable handling of GPIO pins present 193 on Exar XR17V352/354/358 chips. 194 195config GPIO_GE_FPGA 196 bool "GE FPGA based GPIO" 197 depends on GE_FPGA 198 select GPIO_GENERIC 199 help 200 Support for common GPIO functionality provided on some GE Single Board 201 Computers. 202 203 This driver provides basic support (configure as input or output, read 204 and write pin state) for GPIO implemented in a number of GE single 205 board computers. 206 207config GPIO_FTGPIO010 208 bool "Faraday FTGPIO010 GPIO" 209 depends on OF_GPIO 210 select GPIO_GENERIC 211 select GPIOLIB_IRQCHIP 212 default (ARCH_GEMINI || ARCH_MOXART) 213 help 214 Support for common GPIOs from the Faraday FTGPIO010 IP core, found in 215 Cortina systems Gemini platforms, Moxa ART and others. 216 217config GPIO_GENERIC_PLATFORM 218 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 219 select GPIO_GENERIC 220 help 221 Say yes here to support basic platform_device memory-mapped GPIO controllers. 222 223config GPIO_GRGPIO 224 tristate "Aeroflex Gaisler GRGPIO support" 225 depends on OF_GPIO 226 select GPIO_GENERIC 227 select IRQ_DOMAIN 228 help 229 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 230 VHDL IP core library. 231 232config GPIO_ICH 233 tristate "Intel ICH GPIO" 234 depends on PCI && X86 235 select MFD_CORE 236 select LPC_ICH 237 help 238 Say yes here to support the GPIO functionality of a number of Intel 239 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 240 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 241 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 242 243 If unsure, say N. 244 245config GPIO_INGENIC 246 tristate "Ingenic JZ47xx SoCs GPIO support" 247 depends on OF 248 depends on MACH_INGENIC || COMPILE_TEST 249 select GPIOLIB_IRQCHIP 250 help 251 Say yes here to support the GPIO functionality present on the 252 JZ4740 and JZ4780 SoCs from Ingenic. 253 254 If unsure, say N. 255 256config GPIO_IOP 257 tristate "Intel IOP GPIO" 258 depends on ARCH_IOP32X || ARCH_IOP33X || COMPILE_TEST 259 select GPIO_GENERIC 260 help 261 Say yes here to support the GPIO functionality of a number of Intel 262 IOP32X or IOP33X. 263 264 If unsure, say N. 265 266config GPIO_LOONGSON 267 bool "Loongson-2/3 GPIO support" 268 depends on CPU_LOONGSON2 || CPU_LOONGSON3 269 help 270 driver for GPIO functionality on Loongson-2F/3A/3B processors. 271 272config GPIO_LPC18XX 273 tristate "NXP LPC18XX/43XX GPIO support" 274 default y if ARCH_LPC18XX 275 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 276 help 277 Select this option to enable GPIO driver for 278 NXP LPC18XX/43XX devices. 279 280config GPIO_LYNXPOINT 281 tristate "Intel Lynxpoint GPIO support" 282 depends on ACPI && X86 283 select GPIOLIB_IRQCHIP 284 help 285 driver for GPIO functionality on Intel Lynxpoint PCH chipset 286 Requires ACPI device enumeration code to set up a platform device. 287 288config GPIO_MB86S7X 289 bool "GPIO support for Fujitsu MB86S7x Platforms" 290 depends on ARCH_MB86S7X || COMPILE_TEST 291 help 292 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 293 294config GPIO_MENZ127 295 tristate "MEN 16Z127 GPIO support" 296 depends on MCB 297 select GPIO_GENERIC 298 help 299 Say yes here to support the MEN 16Z127 GPIO Controller 300 301config GPIO_MM_LANTIQ 302 bool "Lantiq Memory mapped GPIOs" 303 depends on LANTIQ && SOC_XWAY 304 help 305 This enables support for memory mapped GPIOs on the External Bus Unit 306 (EBU) found on Lantiq SoCs. The gpios are output only as they are 307 created by attaching a 16bit latch to the bus. 308 309config GPIO_MOCKUP 310 tristate "GPIO Testing Driver" 311 depends on GPIOLIB && SYSFS 312 select GPIO_SYSFS 313 select GPIOLIB_IRQCHIP 314 select IRQ_SIM 315 help 316 This enables GPIO Testing driver, which provides a way to test GPIO 317 subsystem through sysfs(or char device) and debugfs. GPIO_SYSFS 318 must be selected for this test. 319 User could use it through the script in 320 tools/testing/selftests/gpio/gpio-mockup.sh. Reference the usage in 321 it. 322 323config GPIO_MPC5200 324 def_bool y 325 depends on PPC_MPC52xx 326 327config GPIO_MPC8XXX 328 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 329 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 330 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 331 COMPILE_TEST 332 select GPIO_GENERIC 333 select IRQ_DOMAIN 334 help 335 Say Y here if you're going to use hardware that connects to the 336 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 337 338config GPIO_MVEBU 339 def_bool y 340 depends on PLAT_ORION || ARCH_MVEBU 341 depends on OF_GPIO 342 select GENERIC_IRQ_CHIP 343 select REGMAP_MMIO 344 345config GPIO_MXC 346 def_bool y 347 depends on ARCH_MXC 348 select GPIO_GENERIC 349 select GENERIC_IRQ_CHIP 350 351config GPIO_MXS 352 def_bool y 353 depends on ARCH_MXS 354 select GPIO_GENERIC 355 select GENERIC_IRQ_CHIP 356 357config GPIO_OCTEON 358 tristate "Cavium OCTEON GPIO" 359 depends on GPIOLIB && CAVIUM_OCTEON_SOC 360 default y 361 help 362 Say yes here to support the on-chip GPIO lines on the OCTEON 363 family of SOCs. 364 365config GPIO_OMAP 366 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 367 default y if ARCH_OMAP 368 depends on ARM 369 select GENERIC_IRQ_CHIP 370 select GPIOLIB_IRQCHIP 371 help 372 Say yes here to enable GPIO support for TI OMAP SoCs. 373 374config GPIO_PL061 375 bool "PrimeCell PL061 GPIO support" 376 depends on ARM_AMBA 377 select IRQ_DOMAIN 378 select GPIOLIB_IRQCHIP 379 help 380 Say yes here to support the PrimeCell PL061 GPIO device 381 382config GPIO_PXA 383 bool "PXA GPIO support" 384 depends on ARCH_PXA || ARCH_MMP 385 help 386 Say yes here to support the PXA GPIO device 387 388config GPIO_RCAR 389 tristate "Renesas R-Car GPIO" 390 depends on ARCH_RENESAS || COMPILE_TEST 391 select GPIOLIB_IRQCHIP 392 help 393 Say yes here to support GPIO on Renesas R-Car SoCs. 394 395config GPIO_REG 396 bool 397 help 398 A 32-bit single register GPIO fixed in/out implementation. This 399 can be used to represent any register as a set of GPIO signals. 400 401config GPIO_SPEAR_SPICS 402 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 403 depends on PLAT_SPEAR 404 select GENERIC_IRQ_CHIP 405 help 406 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 407 408config GPIO_STA2X11 409 bool "STA2x11/ConneXt GPIO support" 410 depends on MFD_STA2X11 411 select GENERIC_IRQ_CHIP 412 help 413 Say yes here to support the STA2x11/ConneXt GPIO device. 414 The GPIO module has 128 GPIO pins with alternate functions. 415 416config GPIO_STP_XWAY 417 bool "XWAY STP GPIOs" 418 depends on SOC_XWAY 419 help 420 This enables support for the Serial To Parallel (STP) unit found on 421 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 422 that can be up to 24 bit. This peripheral is aimed at driving leds. 423 Some of the gpios/leds can be auto updated by the soc with dsl and 424 phy status. 425 426config GPIO_SYSCON 427 tristate "GPIO based on SYSCON" 428 depends on MFD_SYSCON && OF 429 help 430 Say yes here to support GPIO functionality though SYSCON driver. 431 432config GPIO_TB10X 433 bool 434 select GENERIC_IRQ_CHIP 435 select OF_GPIO 436 437config GPIO_TEGRA 438 bool "NVIDIA Tegra GPIO support" 439 default ARCH_TEGRA 440 depends on ARCH_TEGRA || COMPILE_TEST 441 depends on OF_GPIO 442 help 443 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 444 445config GPIO_TS4800 446 tristate "TS-4800 DIO blocks and compatibles" 447 depends on OF_GPIO 448 depends on SOC_IMX51 || COMPILE_TEST 449 select GPIO_GENERIC 450 help 451 This driver support TS-4800 FPGA GPIO controllers. 452 453config GPIO_THUNDERX 454 tristate "Cavium ThunderX/OCTEON-TX GPIO" 455 depends on ARCH_THUNDER || (64BIT && COMPILE_TEST) 456 depends on PCI_MSI 457 select IRQ_DOMAIN_HIERARCHY 458 select IRQ_FASTEOI_HIERARCHY_HANDLERS 459 help 460 Say yes here to support the on-chip GPIO lines on the ThunderX 461 and OCTEON-TX families of SoCs. 462 463config GPIO_TZ1090 464 bool "Toumaz Xenif TZ1090 GPIO support" 465 depends on SOC_TZ1090 466 select GENERIC_IRQ_CHIP 467 default y 468 help 469 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 470 471config GPIO_TZ1090_PDC 472 bool "Toumaz Xenif TZ1090 PDC GPIO support" 473 depends on SOC_TZ1090 474 default y 475 help 476 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 477 478config GPIO_VF610 479 def_bool y 480 depends on ARCH_MXC && SOC_VF610 481 select GPIOLIB_IRQCHIP 482 help 483 Say yes here to support Vybrid vf610 GPIOs. 484 485config GPIO_VR41XX 486 tristate "NEC VR4100 series General-purpose I/O Uint support" 487 depends on CPU_VR41XX 488 help 489 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 490 491config GPIO_VX855 492 tristate "VIA VX855/VX875 GPIO" 493 depends on (X86 || COMPILE_TEST) && PCI 494 select MFD_CORE 495 select MFD_VX855 496 help 497 Support access to the VX855/VX875 GPIO lines through the gpio library. 498 499 This driver provides common support for accessing the device, 500 additional drivers must be enabled in order to use the 501 functionality of the device. 502 503config GPIO_XGENE 504 bool "APM X-Gene GPIO controller support" 505 depends on ARM64 && OF_GPIO 506 help 507 This driver is to support the GPIO block within the APM X-Gene SoC 508 platform's generic flash controller. The GPIO pins are muxed with 509 the generic flash controller's address and data pins. Say yes 510 here to enable the GFC GPIO functionality. 511 512config GPIO_XGENE_SB 513 tristate "APM X-Gene GPIO standby controller support" 514 depends on ARCH_XGENE && OF_GPIO 515 select GPIO_GENERIC 516 select GPIOLIB_IRQCHIP 517 select IRQ_DOMAIN_HIERARCHY 518 help 519 This driver supports the GPIO block within the APM X-Gene 520 Standby Domain. Say yes here to enable the GPIO functionality. 521 522config GPIO_XILINX 523 tristate "Xilinx GPIO support" 524 depends on OF_GPIO 525 help 526 Say yes here to support the Xilinx FPGA GPIO device 527 528config GPIO_XLP 529 tristate "Netlogic XLP GPIO support" 530 depends on OF_GPIO && (CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST) 531 select GPIOLIB_IRQCHIP 532 help 533 This driver provides support for GPIO interface on Netlogic XLP MIPS64 534 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 535 XLP9XX and XLP5XX. The same GPIO controller block is also present in 536 Cavium's ThunderX2 CN99XX SoCs. 537 538 If unsure, say N. 539 540config GPIO_XTENSA 541 bool "Xtensa GPIO32 support" 542 depends on XTENSA 543 depends on HAVE_XTENSA_GPIO32 544 depends on !SMP 545 help 546 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 547 and EXPSTATE (output) ports 548 549config GPIO_ZEVIO 550 bool "LSI ZEVIO SoC memory mapped GPIOs" 551 depends on ARM && OF_GPIO 552 help 553 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 554 555config GPIO_ZYNQ 556 tristate "Xilinx Zynq GPIO support" 557 depends on ARCH_ZYNQ || ARCH_ZYNQMP 558 select GPIOLIB_IRQCHIP 559 help 560 Say yes here to support Xilinx Zynq GPIO controller. 561 562config GPIO_ZX 563 bool "ZTE ZX GPIO support" 564 depends on ARCH_ZX || COMPILE_TEST 565 select GPIOLIB_IRQCHIP 566 help 567 Say yes here to support the GPIO device on ZTE ZX SoCs. 568 569config GPIO_LOONGSON1 570 tristate "Loongson1 GPIO support" 571 depends on MACH_LOONGSON32 572 select GPIO_GENERIC 573 help 574 Say Y or M here to support GPIO on Loongson1 SoCs. 575 576endmenu 577 578menu "Port-mapped I/O GPIO drivers" 579 depends on X86 # Unconditional I/O space access 580 581config GPIO_104_DIO_48E 582 tristate "ACCES 104-DIO-48E GPIO support" 583 depends on PC104 && ISA_BUS_API 584 select GPIOLIB_IRQCHIP 585 help 586 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 587 104-DIO-24E). The base port addresses for the devices may be 588 configured via the base module parameter. The interrupt line numbers 589 for the devices may be configured via the irq module parameter. 590 591config GPIO_104_IDIO_16 592 tristate "ACCES 104-IDIO-16 GPIO support" 593 depends on PC104 && ISA_BUS_API 594 select GPIOLIB_IRQCHIP 595 help 596 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 597 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 598 base port addresses for the devices may be configured via the base 599 module parameter. The interrupt line numbers for the devices may be 600 configured via the irq module parameter. 601 602config GPIO_104_IDI_48 603 tristate "ACCES 104-IDI-48 GPIO support" 604 depends on PC104 && ISA_BUS_API 605 select GPIOLIB_IRQCHIP 606 help 607 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 608 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 609 the devices may be configured via the base module parameter. The 610 interrupt line numbers for the devices may be configured via the irq 611 module parameter. 612 613config GPIO_F7188X 614 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 615 help 616 This option enables support for GPIOs found on Fintek Super-I/O 617 chips F71869, F71869A, F71882FG, F71889F and F81866. 618 619 To compile this driver as a module, choose M here: the module will 620 be called f7188x-gpio. 621 622config GPIO_GPIO_MM 623 tristate "Diamond Systems GPIO-MM GPIO support" 624 depends on PC104 && ISA_BUS_API 625 help 626 Enables GPIO support for the Diamond Systems GPIO-MM and GPIO-MM-12. 627 628 The Diamond Systems GPIO-MM device features 48 lines of digital I/O 629 via the emulation of dual 82C55A PPI chips. This driver provides GPIO 630 support for these 48 channels of digital I/O. 631 632 The base port addresses for the devices may be configured via the base 633 array module parameter. 634 635config GPIO_IT87 636 tristate "IT87xx GPIO support" 637 help 638 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 639 640 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 641 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well. 642 643 To compile this driver as a module, choose M here: the module will 644 be called gpio_it87 645 646config GPIO_SCH 647 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 648 depends on (X86 || COMPILE_TEST) && PCI 649 select MFD_CORE 650 select LPC_SCH 651 help 652 Say yes here to support GPIO interface on Intel Poulsbo SCH, 653 Intel Tunnel Creek processor, Intel Centerton processor or 654 Intel Quark X1000 SoC. 655 656 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 657 powered by the core power rail and are turned off during sleep 658 modes (S3 and higher). The remaining four GPIOs are powered by 659 the Intel SCH suspend power supply. These GPIOs remain 660 active during S3. The suspend powered GPIOs can be used to wake the 661 system from the Suspend-to-RAM state. 662 663 The Intel Tunnel Creek processor has 5 GPIOs powered by the 664 core power rail and 9 from suspend power supply. 665 666 The Intel Centerton processor has a total of 30 GPIO pins. 667 Twenty-one are powered by the core power rail and 9 from the 668 suspend power supply. 669 670 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 671 power well and 6 from the suspend power well. 672 673config GPIO_SCH311X 674 tristate "SMSC SCH311x SuperI/O GPIO" 675 help 676 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 677 SCH3116 "Super I/O" chipsets. 678 679 To compile this driver as a module, choose M here: the module will 680 be called gpio-sch311x. 681 682config GPIO_TS5500 683 tristate "TS-5500 DIO blocks and compatibles" 684 depends on TS5500 || COMPILE_TEST 685 help 686 This driver supports Digital I/O exposed by pin blocks found on some 687 Technologic Systems platforms. It includes, but is not limited to, 3 688 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 689 LCD port. 690 691config GPIO_WS16C48 692 tristate "WinSystems WS16C48 GPIO support" 693 depends on ISA_BUS_API 694 select GPIOLIB_IRQCHIP 695 help 696 Enables GPIO support for the WinSystems WS16C48. The base port 697 addresses for the devices may be configured via the base module 698 parameter. The interrupt line numbers for the devices may be 699 configured via the irq module parameter. 700 701endmenu 702 703menu "I2C GPIO expanders" 704 depends on I2C 705 706config GPIO_ADP5588 707 tristate "ADP5588 I2C GPIO expander" 708 help 709 This option enables support for 18 GPIOs found 710 on Analog Devices ADP5588 GPIO Expanders. 711 712config GPIO_ADP5588_IRQ 713 bool "Interrupt controller support for ADP5588" 714 depends on GPIO_ADP5588=y 715 help 716 Say yes here to enable the adp5588 to be used as an interrupt 717 controller. It requires the driver to be built in the kernel. 718 719config GPIO_ADNP 720 tristate "Avionic Design N-bit GPIO expander" 721 depends on OF_GPIO 722 select GPIOLIB_IRQCHIP 723 help 724 This option enables support for N GPIOs found on Avionic Design 725 I2C GPIO expanders. The register space will be extended by powers 726 of two, so the controller will need to accommodate for that. For 727 example: if a controller provides 48 pins, 6 registers will be 728 enough to represent all pins, but the driver will assume a 729 register layout for 64 pins (8 registers). 730 731config GPIO_MAX7300 732 tristate "Maxim MAX7300 GPIO expander" 733 select GPIO_MAX730X 734 help 735 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 736 737config GPIO_MAX732X 738 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 739 help 740 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 741 Port Expanders. Each IO port on these chips has a fixed role of 742 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 743 Input and Output (designed by 'P'). The combinations are listed 744 below: 745 746 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 747 max7322 (4I4O), max7323 (4P4O) 748 749 16 bits: max7324 (8I8O), max7325 (8P8O), 750 max7326 (4I12O), max7327 (4P12O) 751 752 Board setup code must specify the model to use, and the start 753 number for these GPIOs. 754 755config GPIO_MAX732X_IRQ 756 bool "Interrupt controller support for MAX732x" 757 depends on GPIO_MAX732X=y 758 select GPIOLIB_IRQCHIP 759 help 760 Say yes here to enable the max732x to be used as an interrupt 761 controller. It requires the driver to be built in the kernel. 762 763config GPIO_MC9S08DZ60 764 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 765 depends on I2C=y && MACH_MX35_3DS 766 help 767 Select this to enable the MC9S08DZ60 GPIO driver 768 769config GPIO_PCA953X 770 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 771 help 772 Say yes here to provide access to several register-oriented 773 SMBus I/O expanders, made mostly by NXP or TI. Compatible 774 models include: 775 776 4 bits: pca9536, pca9537 777 778 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 779 pca9556, pca9557, pca9574, tca6408, tca9554, xra1202 780 781 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 782 tca6416 783 784 24 bits: tca6424 785 786 40 bits: pca9505, pca9698 787 788config GPIO_PCA953X_IRQ 789 bool "Interrupt controller support for PCA953x" 790 depends on GPIO_PCA953X=y 791 select GPIOLIB_IRQCHIP 792 help 793 Say yes here to enable the pca953x to be used as an interrupt 794 controller. It requires the driver to be built in the kernel. 795 796config GPIO_PCF857X 797 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 798 select GPIOLIB_IRQCHIP 799 select IRQ_DOMAIN 800 help 801 Say yes here to provide access to most "quasi-bidirectional" I2C 802 GPIO expanders used for additional digital outputs or inputs. 803 Most of these parts are from NXP, though TI is a second source for 804 some of them. Compatible models include: 805 806 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 807 pca9670, pca9672, pca9674, pca9674a, 808 max7328, max7329 809 810 16 bits: pcf8575, pcf8575c, pca8575, 811 pca9671, pca9673, pca9675 812 813 Your board setup code will need to declare the expanders in 814 use, and assign numbers to the GPIOs they expose. Those GPIOs 815 can then be used from drivers and other kernel code, just like 816 other GPIOs, but only accessible from task contexts. 817 818 This driver provides an in-kernel interface to those GPIOs using 819 platform-neutral GPIO calls. 820 821config GPIO_SX150X 822 bool "Semtech SX150x I2C GPIO expander (deprecated)" 823 depends on PINCTRL && I2C=y 824 select PINCTRL_SX150X 825 default n 826 help 827 Say yes here to provide support for Semtech SX150x-series I2C 828 GPIO expanders. The GPIO driver was replaced by a Pinctrl version. 829 830config GPIO_TPIC2810 831 tristate "TPIC2810 8-Bit I2C GPO expander" 832 help 833 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 834 835 To compile this driver as a module, choose M here: the module will 836 be called gpio-tpic2810. 837 838config GPIO_TS4900 839 tristate "Technologic Systems FPGA I2C GPIO" 840 depends on SOC_IMX6 || COMPILE_TEST 841 select REGMAP_I2C 842 help 843 Say yes here to enabled the GPIO driver for Technologic's FPGA core. 844 Series supported include TS-4100, TS-4900, TS-7970 and TS-7990. 845 846endmenu 847 848menu "MFD GPIO expanders" 849 850config GPIO_ADP5520 851 tristate "GPIO Support for ADP5520 PMIC" 852 depends on PMIC_ADP5520 853 help 854 This option enables support for on-chip GPIO found 855 on Analog Devices ADP5520 PMICs. 856 857config GPIO_ALTERA_A10SR 858 tristate "Altera Arria10 System Resource GPIO" 859 depends on MFD_ALTERA_A10SR 860 help 861 Driver for Arria10 Development Kit GPIO expansion which 862 includes reads of pushbuttons and DIP switches as well 863 as writes to LEDs. 864 865config GPIO_ARIZONA 866 tristate "Wolfson Microelectronics Arizona class devices" 867 depends on MFD_ARIZONA 868 help 869 Support for GPIOs on Wolfson Arizona class devices. 870 871config GPIO_BD9571MWV 872 tristate "ROHM BD9571 GPIO support" 873 depends on MFD_BD9571MWV 874 help 875 Support for GPIOs on ROHM BD9571 PMIC. There are two GPIOs 876 available on the ROHM PMIC in total, both of which can also 877 generate interrupts. 878 879 This driver can also be built as a module. If so, the module 880 will be called gpio-bd9571mwv. 881 882config GPIO_CRYSTAL_COVE 883 tristate "GPIO support for Crystal Cove PMIC" 884 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC 885 select GPIOLIB_IRQCHIP 886 help 887 Support for GPIO pins on Crystal Cove PMIC. 888 889 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 890 inside. 891 892 This driver can also be built as a module. If so, the module will be 893 called gpio-crystalcove. 894 895config GPIO_CS5535 896 tristate "AMD CS5535/CS5536 GPIO support" 897 depends on X86 || MIPS || COMPILE_TEST 898 depends on MFD_CS5535 899 help 900 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 901 can be used for quite a number of things. The CS5535/6 is found on 902 AMD Geode and Lemote Yeeloong devices. 903 904 If unsure, say N. 905 906config GPIO_DA9052 907 tristate "Dialog DA9052 GPIO" 908 depends on PMIC_DA9052 909 help 910 Say yes here to enable the GPIO driver for the DA9052 chip. 911 912config GPIO_DA9055 913 tristate "Dialog Semiconductor DA9055 GPIO" 914 depends on MFD_DA9055 915 help 916 Say yes here to enable the GPIO driver for the DA9055 chip. 917 918 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 919 be controller by this driver. 920 921 If driver is built as a module it will be called gpio-da9055. 922 923config GPIO_DLN2 924 tristate "Diolan DLN2 GPIO support" 925 depends on MFD_DLN2 926 select GPIOLIB_IRQCHIP 927 928 help 929 Select this option to enable GPIO driver for the Diolan DLN2 930 board. 931 932 This driver can also be built as a module. If so, the module 933 will be called gpio-dln2. 934 935config HTC_EGPIO 936 bool "HTC EGPIO support" 937 depends on GPIOLIB && ARM 938 help 939 This driver supports the CPLD egpio chip present on 940 several HTC phones. It provides basic support for input 941 pins, output pins, and irqs. 942 943config GPIO_JANZ_TTL 944 tristate "Janz VMOD-TTL Digital IO Module" 945 depends on MFD_JANZ_CMODIO 946 help 947 This enables support for the Janz VMOD-TTL Digital IO module. 948 This driver provides support for driving the pins in output 949 mode only. Input mode is not supported. 950 951config GPIO_KEMPLD 952 tristate "Kontron ETX / COMexpress GPIO" 953 depends on MFD_KEMPLD 954 help 955 This enables support for the PLD GPIO interface on some Kontron ETX 956 and COMexpress (ETXexpress) modules. 957 958 This driver can also be built as a module. If so, the module will be 959 called gpio-kempld. 960 961config GPIO_LP3943 962 tristate "TI/National Semiconductor LP3943 GPIO expander" 963 depends on MFD_LP3943 964 help 965 GPIO driver for LP3943 MFD. 966 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 967 Open drain outputs are required for this usage. 968 969config GPIO_LP873X 970 tristate "TI LP873X GPO" 971 depends on MFD_TI_LP873X 972 help 973 This driver supports the GPO on TI Lp873x PMICs. 2 GPOs are present 974 on LP873X PMICs. 975 976 This driver can also be built as a module. If so, the module will be 977 called gpio-lp873x. 978 979config GPIO_LP87565 980 tristate "TI LP87565 GPIO" 981 depends on MFD_TI_LP87565 982 help 983 This driver supports the GPIO on TI Lp873565 PMICs. 3 GPIOs are present 984 on LP87565 PMICs. 985 986 This driver can also be built as a module. If so, the module will be 987 called gpio-lp87565. 988 989config GPIO_MAX77620 990 tristate "GPIO support for PMIC MAX77620 and MAX20024" 991 depends on MFD_MAX77620 992 help 993 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 994 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 995 driver also provides interrupt support for each of the gpios. 996 Say yes here to enable the max77620 to be used as gpio controller. 997 998config GPIO_MSIC 999 bool "Intel MSIC mixed signal gpio support" 1000 depends on (X86 || COMPILE_TEST) && MFD_INTEL_MSIC 1001 help 1002 Enable support for GPIO on intel MSIC controllers found in 1003 intel MID devices 1004 1005config GPIO_PALMAS 1006 bool "TI PALMAS series PMICs GPIO" 1007 depends on MFD_PALMAS 1008 help 1009 Select this option to enable GPIO driver for the TI PALMAS 1010 series chip family. 1011 1012config GPIO_RC5T583 1013 bool "RICOH RC5T583 GPIO" 1014 depends on MFD_RC5T583 1015 help 1016 Select this option to enable GPIO driver for the Ricoh RC5T583 1017 chip family. 1018 This driver provides the support for driving/reading the gpio pins 1019 of RC5T583 device through standard gpio library. 1020 1021config GPIO_STMPE 1022 bool "STMPE GPIOs" 1023 depends on MFD_STMPE 1024 depends on OF_GPIO 1025 select GPIOLIB_IRQCHIP 1026 help 1027 This enables support for the GPIOs found on the STMPE I/O 1028 Expanders. 1029 1030config GPIO_TC3589X 1031 bool "TC3589X GPIOs" 1032 depends on MFD_TC3589X 1033 depends on OF_GPIO 1034 select GPIOLIB_IRQCHIP 1035 help 1036 This enables support for the GPIOs found on the TC3589X 1037 I/O Expander. 1038 1039config GPIO_TIMBERDALE 1040 bool "Support for timberdale GPIO IP" 1041 depends on MFD_TIMBERDALE 1042 ---help--- 1043 Add support for the GPIO IP in the timberdale FPGA. 1044 1045config GPIO_TPS65086 1046 tristate "TI TPS65086 GPO" 1047 depends on MFD_TPS65086 1048 help 1049 This driver supports the GPO on TI TPS65086x PMICs. 1050 1051config GPIO_TPS65218 1052 tristate "TPS65218 GPIO" 1053 depends on MFD_TPS65218 1054 help 1055 Select this option to enable GPIO driver for the TPS65218 1056 chip family. 1057 1058config GPIO_TPS6586X 1059 bool "TPS6586X GPIO" 1060 depends on MFD_TPS6586X 1061 help 1062 Select this option to enable GPIO driver for the TPS6586X 1063 chip family. 1064 1065config GPIO_TPS65910 1066 bool "TPS65910 GPIO" 1067 depends on MFD_TPS65910 1068 help 1069 Select this option to enable GPIO driver for the TPS65910 1070 chip family. 1071 1072config GPIO_TPS65912 1073 tristate "TI TPS65912 GPIO" 1074 depends on MFD_TPS65912 1075 help 1076 This driver supports TPS65912 gpio chip 1077 1078config GPIO_TPS68470 1079 bool "TPS68470 GPIO" 1080 depends on MFD_TPS68470 1081 help 1082 Select this option to enable GPIO driver for the TPS68470 1083 chip family. 1084 There are 7 GPIOs and few sensor related GPIOs supported 1085 by the TPS68470. While the 7 GPIOs can be configured as 1086 input or output as appropriate, the sensor related GPIOs 1087 are "output only" GPIOs. 1088 1089 This driver config is bool, as the GPIO functionality 1090 of the TPS68470 must be available before dependent 1091 drivers are loaded. 1092 1093config GPIO_TWL4030 1094 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 1095 depends on TWL4030_CORE 1096 help 1097 Say yes here to access the GPIO signals of various multi-function 1098 power management chips from Texas Instruments. 1099 1100config GPIO_TWL6040 1101 tristate "TWL6040 GPO" 1102 depends on TWL6040_CORE 1103 help 1104 Say yes here to access the GPO signals of twl6040 1105 audio chip from Texas Instruments. 1106 1107config GPIO_UCB1400 1108 tristate "Philips UCB1400 GPIO" 1109 depends on UCB1400_CORE 1110 help 1111 This enables support for the Philips UCB1400 GPIO pins. 1112 The UCB1400 is an AC97 audio codec. 1113 1114config GPIO_WHISKEY_COVE 1115 tristate "GPIO support for Whiskey Cove PMIC" 1116 depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC 1117 select GPIOLIB_IRQCHIP 1118 help 1119 Support for GPIO pins on Whiskey Cove PMIC. 1120 1121 Say Yes if you have a Intel SoC based tablet with Whiskey Cove PMIC 1122 inside. 1123 1124 This driver can also be built as a module. If so, the module will be 1125 called gpio-wcove. 1126 1127config GPIO_WM831X 1128 tristate "WM831x GPIOs" 1129 depends on MFD_WM831X 1130 help 1131 Say yes here to access the GPIO signals of WM831x power management 1132 chips from Wolfson Microelectronics. 1133 1134config GPIO_WM8350 1135 tristate "WM8350 GPIOs" 1136 depends on MFD_WM8350 1137 help 1138 Say yes here to access the GPIO signals of WM8350 power management 1139 chips from Wolfson Microelectronics. 1140 1141config GPIO_WM8994 1142 tristate "WM8994 GPIOs" 1143 depends on MFD_WM8994 1144 help 1145 Say yes here to access the GPIO signals of WM8994 audio hub 1146 CODECs from Wolfson Microelectronics. 1147 1148endmenu 1149 1150menu "PCI GPIO expanders" 1151 depends on PCI 1152 1153config GPIO_AMD8111 1154 tristate "AMD 8111 GPIO driver" 1155 depends on X86 || COMPILE_TEST 1156 help 1157 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1158 1159 Note, that usually system firmware/ACPI handles GPIO pins on their 1160 own and users might easily break their systems with uncarefull usage 1161 of this driver! 1162 1163 If unsure, say N 1164 1165config GPIO_BT8XX 1166 tristate "BT8XX GPIO abuser" 1167 depends on VIDEO_BT848=n 1168 help 1169 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1170 as a cheap PCI GPIO card. 1171 1172 This chip can be found on Miro, Hauppauge and STB TV-cards. 1173 1174 The card needs to be physically altered for using it as a 1175 GPIO card. For more information on how to build a GPIO card 1176 from a BT8xx TV card, see the documentation file at 1177 Documentation/bt8xxgpio.txt 1178 1179 If unsure, say N. 1180 1181config GPIO_INTEL_MID 1182 bool "Intel MID GPIO support" 1183 depends on X86_INTEL_MID 1184 select GPIOLIB_IRQCHIP 1185 help 1186 Say Y here to support Intel MID GPIO. 1187 1188config GPIO_MERRIFIELD 1189 tristate "Intel Merrifield GPIO support" 1190 depends on X86_INTEL_MID 1191 select GPIOLIB_IRQCHIP 1192 help 1193 Say Y here to support Intel Merrifield GPIO. 1194 1195config GPIO_ML_IOH 1196 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1197 depends on X86 || COMPILE_TEST 1198 select GENERIC_IRQ_CHIP 1199 help 1200 ML7213 is companion chip for Intel Atom E6xx series. 1201 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1202 Hub) which is for IVI(In-Vehicle Infotainment) use. 1203 This driver can access the IOH's GPIO device. 1204 1205config GPIO_PCH 1206 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1207 depends on X86_32 || MIPS || COMPILE_TEST 1208 select GENERIC_IRQ_CHIP 1209 help 1210 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1211 which is an IOH(Input/Output Hub) for x86 embedded processor. 1212 This driver can access PCH GPIO device. 1213 1214 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1215 Output Hub), ML7223 and ML7831. 1216 ML7223 IOH is for MP(Media Phone) use. 1217 ML7831 IOH is for general purpose use. 1218 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1219 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1220 1221config GPIO_PCI_IDIO_16 1222 tristate "ACCES PCI-IDIO-16 GPIO support" 1223 select GPIOLIB_IRQCHIP 1224 help 1225 Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is 1226 generated when any of the inputs change state (low to high or high to 1227 low). Input filter control is not supported by this driver, and the 1228 input filters are deactivated by this driver. 1229 1230config GPIO_RDC321X 1231 tristate "RDC R-321x GPIO support" 1232 select MFD_CORE 1233 select MFD_RDC321X 1234 help 1235 Support for the RDC R321x SoC GPIOs over southbridge 1236 PCI configuration space. 1237 1238config GPIO_SODAVILLE 1239 bool "Intel Sodaville GPIO support" 1240 depends on X86 && OF 1241 select GPIO_GENERIC 1242 select GENERIC_IRQ_CHIP 1243 help 1244 Say Y here to support Intel Sodaville GPIO. 1245 1246endmenu 1247 1248menu "SPI GPIO expanders" 1249 depends on SPI_MASTER 1250 1251config GPIO_74X164 1252 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1253 depends on OF_GPIO 1254 help 1255 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1256 shift registers. This driver can be used to provide access 1257 to more gpio outputs. 1258 1259config GPIO_MAX7301 1260 tristate "Maxim MAX7301 GPIO expander" 1261 select GPIO_MAX730X 1262 help 1263 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1264 1265config GPIO_MC33880 1266 tristate "Freescale MC33880 high-side/low-side switch" 1267 help 1268 SPI driver for Freescale MC33880 high-side/low-side switch. 1269 This provides GPIO interface supporting inputs and outputs. 1270 1271config GPIO_PISOSR 1272 tristate "Generic parallel-in/serial-out shift register" 1273 help 1274 GPIO driver for SPI compatible parallel-in/serial-out shift 1275 registers. These are input only devices. 1276 1277config GPIO_XRA1403 1278 tristate "EXAR XRA1403 16-bit GPIO expander" 1279 select REGMAP_SPI 1280 help 1281 GPIO driver for EXAR XRA1403 16-bit SPI-based GPIO expander. 1282 1283endmenu 1284 1285menu "USB GPIO expanders" 1286 depends on USB 1287 1288config GPIO_VIPERBOARD 1289 tristate "Viperboard GPIO a & b support" 1290 depends on MFD_VIPERBOARD 1291 help 1292 Say yes here to access the GPIO signals of Nano River 1293 Technologies Viperboard. There are two GPIO chips on the 1294 board: gpioa and gpiob. 1295 See viperboard API specification and Nano 1296 River Tech's viperboard.h for detailed meaning 1297 of the module parameters. 1298 1299endmenu 1300 1301endif 1302