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 13config ARCH_WANT_OPTIONAL_GPIOLIB 14 bool 15 help 16 Select this config option from the architecture Kconfig, if 17 it is possible to use gpiolib on the architecture, but let the 18 user decide whether to actually build it or not. 19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does 20 not depend on GPIOs being available, but rather let the user 21 decide whether he needs it or not. 22 23config ARCH_REQUIRE_GPIOLIB 24 bool 25 select GPIOLIB 26 help 27 Platforms select gpiolib if they use this infrastructure 28 for all their GPIOs, usually starting with ones integrated 29 into SOC processors. 30 Selecting this from the architecture code will cause the gpiolib 31 code to always get built in. 32 33 34menuconfig GPIOLIB 35 bool "GPIO Support" 36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB 37 help 38 This enables GPIO support through the generic GPIO library. 39 You only need to enable this, if you also want to enable 40 one or more of the GPIO drivers below. 41 42 If unsure, say N. 43 44if GPIOLIB 45 46config GPIO_DEVRES 47 def_bool y 48 depends on HAS_IOMEM 49 50config OF_GPIO 51 def_bool y 52 depends on OF 53 54config GPIO_ACPI 55 def_bool y 56 depends on ACPI 57 58config GPIOLIB_IRQCHIP 59 select IRQ_DOMAIN 60 bool 61 62config DEBUG_GPIO 63 bool "Debug GPIO calls" 64 depends on DEBUG_KERNEL 65 help 66 Say Y here to add some extra checks and diagnostics to GPIO calls. 67 These checks help ensure that GPIOs have been properly initialized 68 before they are used, and that sleeping calls are not made from 69 non-sleeping contexts. They can make bitbanged serial protocols 70 slower. The diagnostics help catch the type of setup errors 71 that are most common when setting up new platforms or boards. 72 73config GPIO_SYSFS 74 bool "/sys/class/gpio/... (sysfs interface)" 75 depends on SYSFS 76 help 77 Say Y here to add a sysfs interface for GPIOs. 78 79 This is mostly useful to work around omissions in a system's 80 kernel support. Those are common in custom and semicustom 81 hardware assembled using standard kernels with a minimum of 82 custom patches. In those cases, userspace code may import 83 a given GPIO from the kernel, if no kernel driver requested it. 84 85 Kernel drivers may also request that a particular GPIO be 86 exported to userspace; this can be useful when debugging. 87 88config GPIO_GENERIC 89 tristate 90 91# put drivers in the right section, in alphabetical order 92 93# This symbol is selected by both I2C and SPI expanders 94config GPIO_MAX730X 95 tristate 96 97menu "Memory mapped GPIO drivers" 98 99config GPIO_74XX_MMIO 100 tristate "GPIO driver for 74xx-ICs with MMIO access" 101 depends on OF_GPIO 102 select GPIO_GENERIC 103 help 104 Say yes here to support GPIO functionality for 74xx-compatible ICs 105 with MMIO access. Compatible models include: 106 1 bit: 741G125 (Input), 741G74 (Output) 107 2 bits: 742G125 (Input), 7474 (Output) 108 4 bits: 74125 (Input), 74175 (Output) 109 6 bits: 74365 (Input), 74174 (Output) 110 8 bits: 74244 (Input), 74273 (Output) 111 16 bits: 741624 (Input), 7416374 (Output) 112 113config GPIO_ALTERA 114 tristate "Altera GPIO" 115 depends on OF_GPIO 116 select GPIOLIB_IRQCHIP 117 help 118 Say Y or M here to build support for the Altera PIO device. 119 120 If driver is built as a module it will be called gpio-altera. 121 122config GPIO_AMDPT 123 tristate "AMD Promontory GPIO support" 124 depends on ACPI 125 help 126 driver for GPIO functionality on Promontory IOHub 127 Require ACPI ASL code to enumerate as a platform device. 128 129config GPIO_BCM_KONA 130 bool "Broadcom Kona GPIO" 131 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 132 help 133 Turn on GPIO support for Broadcom "Kona" chips. 134 135config GPIO_BRCMSTB 136 tristate "BRCMSTB GPIO support" 137 default y if ARCH_BRCMSTB 138 depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST) 139 select GPIO_GENERIC 140 select GPIOLIB_IRQCHIP 141 help 142 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 143 144config GPIO_CLPS711X 145 tristate "CLPS711X GPIO support" 146 depends on ARCH_CLPS711X || COMPILE_TEST 147 select GPIO_GENERIC 148 help 149 Say yes here to support GPIO on CLPS711X SoCs. 150 151config GPIO_DAVINCI 152 bool "TI Davinci/Keystone GPIO support" 153 default y if ARCH_DAVINCI 154 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 155 help 156 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 157 158config GPIO_DWAPB 159 tristate "Synopsys DesignWare APB GPIO driver" 160 select GPIO_GENERIC 161 select GENERIC_IRQ_CHIP 162 help 163 Say Y or M here to build support for the Synopsys DesignWare APB 164 GPIO block. 165 166config GPIO_EM 167 tristate "Emma Mobile GPIO" 168 depends on ARM && OF_GPIO 169 help 170 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 171 172config GPIO_EP93XX 173 def_bool y 174 depends on ARCH_EP93XX 175 select GPIO_GENERIC 176 177config GPIO_ETRAXFS 178 bool "Axis ETRAX FS General I/O" 179 depends on CRIS || COMPILE_TEST 180 depends on OF 181 select GPIO_GENERIC 182 select GPIOLIB_IRQCHIP 183 help 184 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 185 186config GPIO_GE_FPGA 187 bool "GE FPGA based GPIO" 188 depends on GE_FPGA 189 select GPIO_GENERIC 190 help 191 Support for common GPIO functionality provided on some GE Single Board 192 Computers. 193 194 This driver provides basic support (configure as input or output, read 195 and write pin state) for GPIO implemented in a number of GE single 196 board computers. 197 198config GPIO_GENERIC_PLATFORM 199 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 200 select GPIO_GENERIC 201 help 202 Say yes here to support basic platform_device memory-mapped GPIO controllers. 203 204config GPIO_GRGPIO 205 tristate "Aeroflex Gaisler GRGPIO support" 206 depends on OF 207 select GPIO_GENERIC 208 select IRQ_DOMAIN 209 help 210 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 211 VHDL IP core library. 212 213config GPIO_ICH 214 tristate "Intel ICH GPIO" 215 depends on PCI && X86 216 select MFD_CORE 217 select LPC_ICH 218 help 219 Say yes here to support the GPIO functionality of a number of Intel 220 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 221 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 222 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 223 224 If unsure, say N. 225 226config GPIO_IOP 227 tristate "Intel IOP GPIO" 228 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 229 help 230 Say yes here to support the GPIO functionality of a number of Intel 231 IOP32X or IOP33X. 232 233 If unsure, say N. 234 235config GPIO_LOONGSON 236 bool "Loongson-2/3 GPIO support" 237 depends on CPU_LOONGSON2 || CPU_LOONGSON3 238 help 239 driver for GPIO functionality on Loongson-2F/3A/3B processors. 240 241config GPIO_LPC18XX 242 bool "NXP LPC18XX/43XX GPIO support" 243 default y if ARCH_LPC18XX 244 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 245 help 246 Select this option to enable GPIO driver for 247 NXP LPC18XX/43XX devices. 248 249config GPIO_LYNXPOINT 250 tristate "Intel Lynxpoint GPIO support" 251 depends on ACPI && X86 252 select GPIOLIB_IRQCHIP 253 help 254 driver for GPIO functionality on Intel Lynxpoint PCH chipset 255 Requires ACPI device enumeration code to set up a platform device. 256 257config GPIO_MB86S7X 258 bool "GPIO support for Fujitsu MB86S7x Platforms" 259 depends on ARCH_MB86S7X 260 help 261 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 262 263config GPIO_MM_LANTIQ 264 bool "Lantiq Memory mapped GPIOs" 265 depends on LANTIQ && SOC_XWAY 266 help 267 This enables support for memory mapped GPIOs on the External Bus Unit 268 (EBU) found on Lantiq SoCs. The gpios are output only as they are 269 created by attaching a 16bit latch to the bus. 270 271config GPIO_MOXART 272 bool "MOXART GPIO support" 273 depends on ARCH_MOXART 274 select GPIO_GENERIC 275 help 276 Select this option to enable GPIO driver for 277 MOXA ART SoC devices. 278 279config GPIO_MPC5200 280 def_bool y 281 depends on PPC_MPC52xx 282 283config GPIO_MPC8XXX 284 bool "MPC512x/MPC8xxx GPIO support" 285 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 286 FSL_SOC_BOOKE || PPC_86xx 287 help 288 Say Y here if you're going to use hardware that connects to the 289 MPC512x/831x/834x/837x/8572/8610 GPIOs. 290 291config GPIO_MVEBU 292 def_bool y 293 depends on PLAT_ORION 294 depends on OF 295 select GENERIC_IRQ_CHIP 296 297config GPIO_MXC 298 def_bool y 299 depends on ARCH_MXC 300 select GPIO_GENERIC 301 select GENERIC_IRQ_CHIP 302 303config GPIO_MXS 304 def_bool y 305 depends on ARCH_MXS 306 select GPIO_GENERIC 307 select GENERIC_IRQ_CHIP 308 309config GPIO_OCTEON 310 tristate "Cavium OCTEON GPIO" 311 depends on GPIOLIB && CAVIUM_OCTEON_SOC 312 default y 313 help 314 Say yes here to support the on-chip GPIO lines on the OCTEON 315 family of SOCs. 316 317config GPIO_OMAP 318 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 319 default y if ARCH_OMAP 320 depends on ARM 321 select GENERIC_IRQ_CHIP 322 select GPIOLIB_IRQCHIP 323 help 324 Say yes here to enable GPIO support for TI OMAP SoCs. 325 326config GPIO_PL061 327 bool "PrimeCell PL061 GPIO support" 328 depends on ARM_AMBA 329 select IRQ_DOMAIN 330 select GPIOLIB_IRQCHIP 331 help 332 Say yes here to support the PrimeCell PL061 GPIO device 333 334config GPIO_PXA 335 bool "PXA GPIO support" 336 depends on ARCH_PXA || ARCH_MMP 337 help 338 Say yes here to support the PXA GPIO device 339 340config GPIO_RCAR 341 tristate "Renesas R-Car GPIO" 342 depends on ARCH_SHMOBILE || COMPILE_TEST 343 select GPIOLIB_IRQCHIP 344 help 345 Say yes here to support GPIO on Renesas R-Car SoCs. 346 347config GPIO_SAMSUNG 348 bool 349 depends on PLAT_SAMSUNG 350 help 351 Legacy GPIO support. Use only for platforms without support for 352 pinctrl. 353 354config GPIO_SPEAR_SPICS 355 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 356 depends on PLAT_SPEAR 357 select GENERIC_IRQ_CHIP 358 help 359 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 360 361config GPIO_STA2X11 362 bool "STA2x11/ConneXt GPIO support" 363 depends on MFD_STA2X11 364 select GENERIC_IRQ_CHIP 365 help 366 Say yes here to support the STA2x11/ConneXt GPIO device. 367 The GPIO module has 128 GPIO pins with alternate functions. 368 369config GPIO_STP_XWAY 370 bool "XWAY STP GPIOs" 371 depends on SOC_XWAY 372 help 373 This enables support for the Serial To Parallel (STP) unit found on 374 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 375 that can be up to 24 bit. This peripheral is aimed at driving leds. 376 Some of the gpios/leds can be auto updated by the soc with dsl and 377 phy status. 378 379config GPIO_SYSCON 380 tristate "GPIO based on SYSCON" 381 depends on MFD_SYSCON && OF 382 help 383 Say yes here to support GPIO functionality though SYSCON driver. 384 385config GPIO_TB10X 386 bool 387 select GENERIC_IRQ_CHIP 388 select OF_GPIO 389 390config GPIO_TZ1090 391 bool "Toumaz Xenif TZ1090 GPIO support" 392 depends on SOC_TZ1090 393 select GENERIC_IRQ_CHIP 394 default y 395 help 396 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 397 398config GPIO_TZ1090_PDC 399 bool "Toumaz Xenif TZ1090 PDC GPIO support" 400 depends on SOC_TZ1090 401 default y 402 help 403 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 404 405config GPIO_VF610 406 def_bool y 407 depends on ARCH_MXC && SOC_VF610 408 select GPIOLIB_IRQCHIP 409 help 410 Say yes here to support Vybrid vf610 GPIOs. 411 412config GPIO_VR41XX 413 tristate "NEC VR4100 series General-purpose I/O Uint support" 414 depends on CPU_VR41XX 415 help 416 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 417 418config GPIO_VX855 419 tristate "VIA VX855/VX875 GPIO" 420 depends on PCI 421 select MFD_CORE 422 select MFD_VX855 423 help 424 Support access to the VX855/VX875 GPIO lines through the gpio library. 425 426 This driver provides common support for accessing the device, 427 additional drivers must be enabled in order to use the 428 functionality of the device. 429 430config GPIO_XGENE 431 bool "APM X-Gene GPIO controller support" 432 depends on ARM64 && OF_GPIO 433 help 434 This driver is to support the GPIO block within the APM X-Gene SoC 435 platform's generic flash controller. The GPIO pins are muxed with 436 the generic flash controller's address and data pins. Say yes 437 here to enable the GFC GPIO functionality. 438 439config GPIO_XGENE_SB 440 tristate "APM X-Gene GPIO standby controller support" 441 depends on ARCH_XGENE && OF_GPIO 442 select GPIO_GENERIC 443 help 444 This driver supports the GPIO block within the APM X-Gene 445 Standby Domain. Say yes here to enable the GPIO functionality. 446 447config GPIO_XILINX 448 tristate "Xilinx GPIO support" 449 depends on OF_GPIO 450 help 451 Say yes here to support the Xilinx FPGA GPIO device 452 453config GPIO_XLP 454 tristate "Netlogic XLP GPIO support" 455 depends on CPU_XLP && OF_GPIO 456 select GPIOLIB_IRQCHIP 457 help 458 This driver provides support for GPIO interface on Netlogic XLP MIPS64 459 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 460 XLP9XX and XLP5XX. 461 462 If unsure, say N. 463 464config GPIO_XTENSA 465 bool "Xtensa GPIO32 support" 466 depends on XTENSA 467 depends on HAVE_XTENSA_GPIO32 468 depends on !SMP 469 help 470 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 471 and EXPSTATE (output) ports 472 473config GPIO_ZEVIO 474 bool "LSI ZEVIO SoC memory mapped GPIOs" 475 depends on ARM && OF_GPIO 476 help 477 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 478 479config GPIO_ZYNQ 480 tristate "Xilinx Zynq GPIO support" 481 depends on ARCH_ZYNQ || ARCH_ZYNQMP 482 select GPIOLIB_IRQCHIP 483 help 484 Say yes here to support Xilinx Zynq GPIO controller. 485 486endmenu 487 488menu "Port-mapped I/O GPIO drivers" 489 depends on X86 # Unconditional I/O space access 490 491config GPIO_104_IDIO_16 492 tristate "ACCES 104-IDIO-16 GPIO support" 493 help 494 Enables GPIO support for the ACCES 104-IDIO-16 family. 495 496config GPIO_F7188X 497 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 498 help 499 This option enables support for GPIOs found on Fintek Super-I/O 500 chips F71869, F71869A, F71882FG and F71889F. 501 502 To compile this driver as a module, choose M here: the module will 503 be called f7188x-gpio. 504 505config GPIO_IT87 506 tristate "IT87xx GPIO support" 507 help 508 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 509 510 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 511 supports the IT8761E Super I/O chip as well. 512 513 To compile this driver as a module, choose M here: the module will 514 be called gpio_it87 515 516config GPIO_SCH 517 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 518 depends on PCI 519 select MFD_CORE 520 select LPC_SCH 521 help 522 Say yes here to support GPIO interface on Intel Poulsbo SCH, 523 Intel Tunnel Creek processor, Intel Centerton processor or 524 Intel Quark X1000 SoC. 525 526 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 527 powered by the core power rail and are turned off during sleep 528 modes (S3 and higher). The remaining four GPIOs are powered by 529 the Intel SCH suspend power supply. These GPIOs remain 530 active during S3. The suspend powered GPIOs can be used to wake the 531 system from the Suspend-to-RAM state. 532 533 The Intel Tunnel Creek processor has 5 GPIOs powered by the 534 core power rail and 9 from suspend power supply. 535 536 The Intel Centerton processor has a total of 30 GPIO pins. 537 Twenty-one are powered by the core power rail and 9 from the 538 suspend power supply. 539 540 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 541 power well and 6 from the suspend power well. 542 543config GPIO_SCH311X 544 tristate "SMSC SCH311x SuperI/O GPIO" 545 help 546 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 547 SCH3116 "Super I/O" chipsets. 548 549 To compile this driver as a module, choose M here: the module will 550 be called gpio-sch311x. 551 552config GPIO_TS5500 553 tristate "TS-5500 DIO blocks and compatibles" 554 depends on TS5500 || COMPILE_TEST 555 help 556 This driver supports Digital I/O exposed by pin blocks found on some 557 Technologic Systems platforms. It includes, but is not limited to, 3 558 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 559 LCD port. 560 561endmenu 562 563menu "I2C GPIO expanders" 564 depends on I2C 565 566config GPIO_ADP5588 567 tristate "ADP5588 I2C GPIO expander" 568 help 569 This option enables support for 18 GPIOs found 570 on Analog Devices ADP5588 GPIO Expanders. 571 572config GPIO_ADP5588_IRQ 573 bool "Interrupt controller support for ADP5588" 574 depends on GPIO_ADP5588=y 575 help 576 Say yes here to enable the adp5588 to be used as an interrupt 577 controller. It requires the driver to be built in the kernel. 578 579config GPIO_ADNP 580 tristate "Avionic Design N-bit GPIO expander" 581 depends on OF_GPIO 582 select GPIOLIB_IRQCHIP 583 help 584 This option enables support for N GPIOs found on Avionic Design 585 I2C GPIO expanders. The register space will be extended by powers 586 of two, so the controller will need to accommodate for that. For 587 example: if a controller provides 48 pins, 6 registers will be 588 enough to represent all pins, but the driver will assume a 589 register layout for 64 pins (8 registers). 590 591config GPIO_MAX7300 592 tristate "Maxim MAX7300 GPIO expander" 593 select GPIO_MAX730X 594 help 595 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 596 597config GPIO_MAX732X 598 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 599 help 600 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 601 Port Expanders. Each IO port on these chips has a fixed role of 602 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 603 Input and Output (designed by 'P'). The combinations are listed 604 below: 605 606 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 607 max7322 (4I4O), max7323 (4P4O) 608 609 16 bits: max7324 (8I8O), max7325 (8P8O), 610 max7326 (4I12O), max7327 (4P12O) 611 612 Board setup code must specify the model to use, and the start 613 number for these GPIOs. 614 615config GPIO_MAX732X_IRQ 616 bool "Interrupt controller support for MAX732x" 617 depends on GPIO_MAX732X=y 618 select GPIOLIB_IRQCHIP 619 help 620 Say yes here to enable the max732x to be used as an interrupt 621 controller. It requires the driver to be built in the kernel. 622 623config GPIO_MC9S08DZ60 624 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 625 depends on I2C=y && MACH_MX35_3DS 626 help 627 Select this to enable the MC9S08DZ60 GPIO driver 628 629config GPIO_PCA953X 630 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 631 help 632 Say yes here to provide access to several register-oriented 633 SMBus I/O expanders, made mostly by NXP or TI. Compatible 634 models include: 635 636 4 bits: pca9536, pca9537 637 638 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 639 pca9556, pca9557, pca9574, tca6408, xra1202 640 641 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 642 tca6416 643 644 24 bits: tca6424 645 646 40 bits: pca9505, pca9698 647 648config GPIO_PCA953X_IRQ 649 bool "Interrupt controller support for PCA953x" 650 depends on GPIO_PCA953X=y 651 select GPIOLIB_IRQCHIP 652 help 653 Say yes here to enable the pca953x to be used as an interrupt 654 controller. It requires the driver to be built in the kernel. 655 656config GPIO_PCF857X 657 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 658 select GPIOLIB_IRQCHIP 659 select IRQ_DOMAIN 660 help 661 Say yes here to provide access to most "quasi-bidirectional" I2C 662 GPIO expanders used for additional digital outputs or inputs. 663 Most of these parts are from NXP, though TI is a second source for 664 some of them. Compatible models include: 665 666 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 667 pca9670, pca9672, pca9674, pca9674a, 668 max7328, max7329 669 670 16 bits: pcf8575, pcf8575c, pca8575, 671 pca9671, pca9673, pca9675 672 673 Your board setup code will need to declare the expanders in 674 use, and assign numbers to the GPIOs they expose. Those GPIOs 675 can then be used from drivers and other kernel code, just like 676 other GPIOs, but only accessible from task contexts. 677 678 This driver provides an in-kernel interface to those GPIOs using 679 platform-neutral GPIO calls. 680 681config GPIO_SX150X 682 bool "Semtech SX150x I2C GPIO expander" 683 depends on I2C=y 684 select GPIOLIB_IRQCHIP 685 default n 686 help 687 Say yes here to provide support for Semtech SX150-series I2C 688 GPIO expanders. Compatible models include: 689 690 8 bits: sx1508q 691 16 bits: sx1509q 692 693endmenu 694 695menu "MFD GPIO expanders" 696 697config GPIO_ADP5520 698 tristate "GPIO Support for ADP5520 PMIC" 699 depends on PMIC_ADP5520 700 help 701 This option enables support for on-chip GPIO found 702 on Analog Devices ADP5520 PMICs. 703 704config GPIO_ARIZONA 705 tristate "Wolfson Microelectronics Arizona class devices" 706 depends on MFD_ARIZONA 707 help 708 Support for GPIOs on Wolfson Arizona class devices. 709 710config GPIO_CRYSTAL_COVE 711 tristate "GPIO support for Crystal Cove PMIC" 712 depends on INTEL_SOC_PMIC 713 select GPIOLIB_IRQCHIP 714 help 715 Support for GPIO pins on Crystal Cove PMIC. 716 717 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 718 inside. 719 720 This driver can also be built as a module. If so, the module will be 721 called gpio-crystalcove. 722 723config GPIO_CS5535 724 tristate "AMD CS5535/CS5536 GPIO support" 725 depends on MFD_CS5535 726 help 727 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 728 can be used for quite a number of things. The CS5535/6 is found on 729 AMD Geode and Lemote Yeeloong devices. 730 731 If unsure, say N. 732 733config GPIO_DA9052 734 tristate "Dialog DA9052 GPIO" 735 depends on PMIC_DA9052 736 help 737 Say yes here to enable the GPIO driver for the DA9052 chip. 738 739config GPIO_DA9055 740 tristate "Dialog Semiconductor DA9055 GPIO" 741 depends on MFD_DA9055 742 help 743 Say yes here to enable the GPIO driver for the DA9055 chip. 744 745 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 746 be controller by this driver. 747 748 If driver is built as a module it will be called gpio-da9055. 749 750config GPIO_DLN2 751 tristate "Diolan DLN2 GPIO support" 752 depends on MFD_DLN2 753 select GPIOLIB_IRQCHIP 754 755 help 756 Select this option to enable GPIO driver for the Diolan DLN2 757 board. 758 759 This driver can also be built as a module. If so, the module 760 will be called gpio-dln2. 761 762config GPIO_JANZ_TTL 763 tristate "Janz VMOD-TTL Digital IO Module" 764 depends on MFD_JANZ_CMODIO 765 help 766 This enables support for the Janz VMOD-TTL Digital IO module. 767 This driver provides support for driving the pins in output 768 mode only. Input mode is not supported. 769 770config GPIO_KEMPLD 771 tristate "Kontron ETX / COMexpress GPIO" 772 depends on MFD_KEMPLD 773 help 774 This enables support for the PLD GPIO interface on some Kontron ETX 775 and COMexpress (ETXexpress) modules. 776 777 This driver can also be built as a module. If so, the module will be 778 called gpio-kempld. 779 780config GPIO_LP3943 781 tristate "TI/National Semiconductor LP3943 GPIO expander" 782 depends on MFD_LP3943 783 help 784 GPIO driver for LP3943 MFD. 785 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 786 Open drain outputs are required for this usage. 787 788config GPIO_MSIC 789 bool "Intel MSIC mixed signal gpio support" 790 depends on MFD_INTEL_MSIC 791 help 792 Enable support for GPIO on intel MSIC controllers found in 793 intel MID devices 794 795config GPIO_PALMAS 796 bool "TI PALMAS series PMICs GPIO" 797 depends on MFD_PALMAS 798 help 799 Select this option to enable GPIO driver for the TI PALMAS 800 series chip family. 801 802config GPIO_RC5T583 803 bool "RICOH RC5T583 GPIO" 804 depends on MFD_RC5T583 805 help 806 Select this option to enable GPIO driver for the Ricoh RC5T583 807 chip family. 808 This driver provides the support for driving/reading the gpio pins 809 of RC5T583 device through standard gpio library. 810 811config GPIO_STMPE 812 bool "STMPE GPIOs" 813 depends on MFD_STMPE 814 depends on OF_GPIO 815 select GPIOLIB_IRQCHIP 816 help 817 This enables support for the GPIOs found on the STMPE I/O 818 Expanders. 819 820config GPIO_TC3589X 821 bool "TC3589X GPIOs" 822 depends on MFD_TC3589X 823 depends on OF_GPIO 824 select GPIOLIB_IRQCHIP 825 help 826 This enables support for the GPIOs found on the TC3589X 827 I/O Expander. 828 829config GPIO_TIMBERDALE 830 bool "Support for timberdale GPIO IP" 831 depends on MFD_TIMBERDALE 832 ---help--- 833 Add support for the GPIO IP in the timberdale FPGA. 834 835config GPIO_TPS6586X 836 bool "TPS6586X GPIO" 837 depends on MFD_TPS6586X 838 help 839 Select this option to enable GPIO driver for the TPS6586X 840 chip family. 841 842config GPIO_TPS65910 843 bool "TPS65910 GPIO" 844 depends on MFD_TPS65910 845 help 846 Select this option to enable GPIO driver for the TPS65910 847 chip family. 848 849config GPIO_TPS65912 850 tristate "TI TPS65912 GPIO" 851 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 852 help 853 This driver supports TPS65912 gpio chip 854 855config GPIO_TWL4030 856 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 857 depends on TWL4030_CORE 858 help 859 Say yes here to access the GPIO signals of various multi-function 860 power management chips from Texas Instruments. 861 862config GPIO_TWL6040 863 tristate "TWL6040 GPO" 864 depends on TWL6040_CORE 865 help 866 Say yes here to access the GPO signals of twl6040 867 audio chip from Texas Instruments. 868 869config GPIO_UCB1400 870 tristate "Philips UCB1400 GPIO" 871 depends on UCB1400_CORE 872 help 873 This enables support for the Philips UCB1400 GPIO pins. 874 The UCB1400 is an AC97 audio codec. 875 876config GPIO_WM831X 877 tristate "WM831x GPIOs" 878 depends on MFD_WM831X 879 help 880 Say yes here to access the GPIO signals of WM831x power management 881 chips from Wolfson Microelectronics. 882 883config GPIO_WM8350 884 tristate "WM8350 GPIOs" 885 depends on MFD_WM8350 886 help 887 Say yes here to access the GPIO signals of WM8350 power management 888 chips from Wolfson Microelectronics. 889 890config GPIO_WM8994 891 tristate "WM8994 GPIOs" 892 depends on MFD_WM8994 893 help 894 Say yes here to access the GPIO signals of WM8994 audio hub 895 CODECs from Wolfson Microelectronics. 896 897endmenu 898 899menu "PCI GPIO expanders" 900 depends on PCI 901 902config GPIO_AMD8111 903 tristate "AMD 8111 GPIO driver" 904 depends on PCI 905 help 906 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 907 908 Note, that usually system firmware/ACPI handles GPIO pins on their 909 own and users might easily break their systems with uncarefull usage 910 of this driver! 911 912 If unsure, say N 913 914config GPIO_BT8XX 915 tristate "BT8XX GPIO abuser" 916 depends on PCI && VIDEO_BT848=n 917 help 918 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 919 as a cheap PCI GPIO card. 920 921 This chip can be found on Miro, Hauppauge and STB TV-cards. 922 923 The card needs to be physically altered for using it as a 924 GPIO card. For more information on how to build a GPIO card 925 from a BT8xx TV card, see the documentation file at 926 Documentation/bt8xxgpio.txt 927 928 If unsure, say N. 929 930config GPIO_INTEL_MID 931 bool "Intel Mid GPIO support" 932 depends on PCI && X86 933 select GPIOLIB_IRQCHIP 934 help 935 Say Y here to support Intel Mid GPIO. 936 937config GPIO_ML_IOH 938 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 939 depends on PCI 940 select GENERIC_IRQ_CHIP 941 help 942 ML7213 is companion chip for Intel Atom E6xx series. 943 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 944 Hub) which is for IVI(In-Vehicle Infotainment) use. 945 This driver can access the IOH's GPIO device. 946 947config GPIO_PCH 948 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 949 depends on PCI && (X86_32 || COMPILE_TEST) 950 select GENERIC_IRQ_CHIP 951 help 952 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 953 which is an IOH(Input/Output Hub) for x86 embedded processor. 954 This driver can access PCH GPIO device. 955 956 This driver also can be used for LAPIS Semiconductor IOH(Input/ 957 Output Hub), ML7223 and ML7831. 958 ML7223 IOH is for MP(Media Phone) use. 959 ML7831 IOH is for general purpose use. 960 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 961 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 962 963config GPIO_RDC321X 964 tristate "RDC R-321x GPIO support" 965 depends on PCI 966 select MFD_CORE 967 select MFD_RDC321X 968 help 969 Support for the RDC R321x SoC GPIOs over southbridge 970 PCI configuration space. 971 972config GPIO_SODAVILLE 973 bool "Intel Sodaville GPIO support" 974 depends on X86 && PCI && OF 975 select GPIO_GENERIC 976 select GENERIC_IRQ_CHIP 977 help 978 Say Y here to support Intel Sodaville GPIO. 979 980endmenu 981 982menu "SPI GPIO expanders" 983 depends on SPI_MASTER 984 985config GPIO_74X164 986 tristate "74x164 serial-in/parallel-out 8-bits shift register" 987 depends on SPI_MASTER && OF 988 help 989 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 990 shift registers. This driver can be used to provide access 991 to more gpio outputs. 992 993config GPIO_MAX7301 994 tristate "Maxim MAX7301 GPIO expander" 995 depends on SPI_MASTER 996 select GPIO_MAX730X 997 help 998 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 999 1000config GPIO_MCP23S08 1001 tristate "Microchip MCP23xxx I/O expander" 1002 depends on (SPI_MASTER && !I2C) || I2C 1003 help 1004 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1005 I/O expanders. 1006 This provides a GPIO interface supporting inputs and outputs. 1007 The I2C versions of the chips can be used as interrupt-controller. 1008 1009config GPIO_MC33880 1010 tristate "Freescale MC33880 high-side/low-side switch" 1011 depends on SPI_MASTER 1012 help 1013 SPI driver for Freescale MC33880 high-side/low-side switch. 1014 This provides GPIO interface supporting inputs and outputs. 1015 1016config GPIO_ZX 1017 bool "ZTE ZX GPIO support" 1018 select GPIOLIB_IRQCHIP 1019 help 1020 Say yes here to support the GPIO device on ZTE ZX SoCs. 1021 1022endmenu 1023 1024menu "USB GPIO expanders" 1025 depends on USB 1026 1027config GPIO_VIPERBOARD 1028 tristate "Viperboard GPIO a & b support" 1029 depends on MFD_VIPERBOARD && USB 1030 help 1031 Say yes here to access the GPIO signals of Nano River 1032 Technologies Viperboard. There are two GPIO chips on the 1033 board: gpioa and gpiob. 1034 See viperboard API specification and Nano 1035 River Tech's viperboard.h for detailed meaning 1036 of the module parameters. 1037 1038endmenu 1039 1040endif 1041