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 33config GPIO_DEVRES 34 def_bool y 35 depends on HAS_IOMEM 36 37 38menuconfig GPIOLIB 39 bool "GPIO Support" 40 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB 41 help 42 This enables GPIO support through the generic GPIO library. 43 You only need to enable this, if you also want to enable 44 one or more of the GPIO drivers below. 45 46 If unsure, say N. 47 48if GPIOLIB 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 DEBUG_GPIO 59 bool "Debug GPIO calls" 60 depends on DEBUG_KERNEL 61 help 62 Say Y here to add some extra checks and diagnostics to GPIO calls. 63 These checks help ensure that GPIOs have been properly initialized 64 before they are used, and that sleeping calls are not made from 65 non-sleeping contexts. They can make bitbanged serial protocols 66 slower. The diagnostics help catch the type of setup errors 67 that are most common when setting up new platforms or boards. 68 69config GPIO_SYSFS 70 bool "/sys/class/gpio/... (sysfs interface)" 71 depends on SYSFS 72 help 73 Say Y here to add a sysfs interface for GPIOs. 74 75 This is mostly useful to work around omissions in a system's 76 kernel support. Those are common in custom and semicustom 77 hardware assembled using standard kernels with a minimum of 78 custom patches. In those cases, userspace code may import 79 a given GPIO from the kernel, if no kernel driver requested it. 80 81 Kernel drivers may also request that a particular GPIO be 82 exported to userspace; this can be useful when debugging. 83 84config GPIO_GENERIC 85 tristate 86 87# put drivers in the right section, in alphabetical order 88 89config GPIO_DA9052 90 tristate "Dialog DA9052 GPIO" 91 depends on PMIC_DA9052 92 help 93 Say yes here to enable the GPIO driver for the DA9052 chip. 94 95config GPIO_DA9055 96 tristate "Dialog Semiconductor DA9055 GPIO" 97 depends on MFD_DA9055 98 help 99 Say yes here to enable the GPIO driver for the DA9055 chip. 100 101 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 102 be controller by this driver. 103 104 If driver is built as a module it will be called gpio-da9055. 105 106config GPIO_MAX730X 107 tristate 108 109comment "Memory mapped GPIO drivers:" 110 111config GPIO_CLPS711X 112 tristate "CLPS711X GPIO support" 113 depends on ARCH_CLPS711X 114 select GPIO_GENERIC 115 help 116 Say yes here to support GPIO on CLPS711X SoCs. 117 118config GPIO_GENERIC_PLATFORM 119 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 120 select GPIO_GENERIC 121 help 122 Say yes here to support basic platform_device memory-mapped GPIO controllers. 123 124config GPIO_IT8761E 125 tristate "IT8761E GPIO support" 126 depends on X86 # unconditional access to IO space. 127 help 128 Say yes here to support GPIO functionality of IT8761E super I/O chip. 129 130config GPIO_EM 131 tristate "Emma Mobile GPIO" 132 depends on ARM 133 help 134 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 135 136config GPIO_EP93XX 137 def_bool y 138 depends on ARCH_EP93XX 139 select GPIO_GENERIC 140 141config GPIO_MM_LANTIQ 142 bool "Lantiq Memory mapped GPIOs" 143 depends on LANTIQ && SOC_XWAY 144 help 145 This enables support for memory mapped GPIOs on the External Bus Unit 146 (EBU) found on Lantiq SoCs. The gpios are output only as they are 147 created by attaching a 16bit latch to the bus. 148 149config GPIO_F7188X 150 tristate "F71882FG and F71889F GPIO support" 151 depends on X86 152 help 153 This option enables support for GPIOs found on Fintek Super-I/O 154 chips F71882FG and F71889F. 155 156 To compile this driver as a module, choose M here: the module will 157 be called f7188x-gpio. 158 159config GPIO_MPC5200 160 def_bool y 161 depends on PPC_MPC52xx 162 163config GPIO_MPC8XXX 164 bool "MPC512x/MPC8xxx GPIO support" 165 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 166 FSL_SOC_BOOKE || PPC_86xx 167 help 168 Say Y here if you're going to use hardware that connects to the 169 MPC512x/831x/834x/837x/8572/8610 GPIOs. 170 171config GPIO_MSM_V1 172 tristate "Qualcomm MSM GPIO v1" 173 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) 174 help 175 Say yes here to support the GPIO interface on ARM v6 based 176 Qualcomm MSM chips. Most of the pins on the MSM can be 177 selected for GPIO, and are controlled by this driver. 178 179config GPIO_MSM_V2 180 tristate "Qualcomm MSM GPIO v2" 181 depends on GPIOLIB && OF && ARCH_MSM 182 help 183 Say yes here to support the GPIO interface on ARM v7 based 184 Qualcomm MSM chips. Most of the pins on the MSM can be 185 selected for GPIO, and are controlled by this driver. 186 187config GPIO_MVEBU 188 def_bool y 189 depends on PLAT_ORION 190 depends on OF 191 select GPIO_GENERIC 192 select GENERIC_IRQ_CHIP 193 194config GPIO_MXC 195 def_bool y 196 depends on ARCH_MXC 197 select GPIO_GENERIC 198 select GENERIC_IRQ_CHIP 199 200config GPIO_MXS 201 def_bool y 202 depends on ARCH_MXS 203 select GPIO_GENERIC 204 select GENERIC_IRQ_CHIP 205 206config GPIO_OCTEON 207 tristate "Cavium OCTEON GPIO" 208 depends on GPIOLIB && CAVIUM_OCTEON_SOC 209 default y 210 help 211 Say yes here to support the on-chip GPIO lines on the OCTEON 212 family of SOCs. 213 214config GPIO_PL061 215 bool "PrimeCell PL061 GPIO support" 216 depends on ARM && ARM_AMBA 217 select GENERIC_IRQ_CHIP 218 help 219 Say yes here to support the PrimeCell PL061 GPIO device 220 221config GPIO_PXA 222 bool "PXA GPIO support" 223 depends on ARCH_PXA || ARCH_MMP 224 help 225 Say yes here to support the PXA GPIO device 226 227config GPIO_RCAR 228 tristate "Renesas R-Car GPIO" 229 depends on ARM 230 help 231 Say yes here to support GPIO on Renesas R-Car SoCs. 232 233config GPIO_SAMSUNG 234 bool 235 depends on PLAT_SAMSUNG 236 help 237 Legacy GPIO support. Use only for platforms without support for 238 pinctrl. 239 240config GPIO_SPEAR_SPICS 241 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 242 depends on PLAT_SPEAR 243 select GENERIC_IRQ_CHIP 244 help 245 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 246 247config GPIO_STA2X11 248 bool "STA2x11/ConneXt GPIO support" 249 depends on MFD_STA2X11 250 select GENERIC_IRQ_CHIP 251 help 252 Say yes here to support the STA2x11/ConneXt GPIO device. 253 The GPIO module has 128 GPIO pins with alternate functions. 254 255config GPIO_TS5500 256 tristate "TS-5500 DIO blocks and compatibles" 257 help 258 This driver supports Digital I/O exposed by pin blocks found on some 259 Technologic Systems platforms. It includes, but is not limited to, 3 260 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 261 LCD port. 262 263config GPIO_TZ1090 264 bool "Toumaz Xenif TZ1090 GPIO support" 265 depends on SOC_TZ1090 266 select GENERIC_IRQ_CHIP 267 default y 268 help 269 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 270 271config GPIO_TZ1090_PDC 272 bool "Toumaz Xenif TZ1090 PDC GPIO support" 273 depends on SOC_TZ1090 274 default y 275 help 276 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 277 278config GPIO_XILINX 279 bool "Xilinx GPIO support" 280 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ 281 help 282 Say yes here to support the Xilinx FPGA GPIO device 283 284config GPIO_VR41XX 285 tristate "NEC VR4100 series General-purpose I/O Uint support" 286 depends on CPU_VR41XX 287 help 288 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 289 290config GPIO_SCH 291 tristate "Intel SCH/TunnelCreek/Centerton GPIO" 292 depends on PCI && X86 293 select MFD_CORE 294 select LPC_SCH 295 help 296 Say yes here to support GPIO interface on Intel Poulsbo SCH, 297 Intel Tunnel Creek processor or Intel Centerton processor. 298 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 299 powered by the core power rail and are turned off during sleep 300 modes (S3 and higher). The remaining four GPIOs are powered by 301 the Intel SCH suspend power supply. These GPIOs remain 302 active during S3. The suspend powered GPIOs can be used to wake the 303 system from the Suspend-to-RAM state. 304 The Intel Tunnel Creek processor has 5 GPIOs powered by the 305 core power rail and 9 from suspend power supply. 306 The Intel Centerton processor has a total of 30 GPIO pins. 307 Twenty-one are powered by the core power rail and 9 from the 308 suspend power supply. 309 310config GPIO_ICH 311 tristate "Intel ICH GPIO" 312 depends on PCI && X86 313 select MFD_CORE 314 select LPC_ICH 315 help 316 Say yes here to support the GPIO functionality of a number of Intel 317 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 318 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 319 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 320 321 If unsure, say N. 322 323config GPIO_VX855 324 tristate "VIA VX855/VX875 GPIO" 325 depends on PCI 326 select MFD_CORE 327 select MFD_VX855 328 help 329 Support access to the VX855/VX875 GPIO lines through the gpio library. 330 331 This driver provides common support for accessing the device, 332 additional drivers must be enabled in order to use the 333 functionality of the device. 334 335config GPIO_GE_FPGA 336 bool "GE FPGA based GPIO" 337 depends on GE_FPGA 338 help 339 Support for common GPIO functionality provided on some GE Single Board 340 Computers. 341 342 This driver provides basic support (configure as input or output, read 343 and write pin state) for GPIO implemented in a number of GE single 344 board computers. 345 346config GPIO_LYNXPOINT 347 bool "Intel Lynxpoint GPIO support" 348 depends on ACPI && X86 349 select IRQ_DOMAIN 350 help 351 driver for GPIO functionality on Intel Lynxpoint PCH chipset 352 Requires ACPI device enumeration code to set up a platform device. 353 354config GPIO_GRGPIO 355 tristate "Aeroflex Gaisler GRGPIO support" 356 depends on OF 357 select GPIO_GENERIC 358 select IRQ_DOMAIN 359 help 360 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 361 VHDL IP core library. 362 363comment "I2C GPIO expanders:" 364 365config GPIO_ARIZONA 366 tristate "Wolfson Microelectronics Arizona class devices" 367 depends on MFD_ARIZONA 368 help 369 Support for GPIOs on Wolfson Arizona class devices. 370 371config GPIO_MAX7300 372 tristate "Maxim MAX7300 GPIO expander" 373 depends on I2C 374 select GPIO_MAX730X 375 help 376 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 377 378config GPIO_MAX732X 379 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 380 depends on I2C 381 help 382 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 383 Port Expanders. Each IO port on these chips has a fixed role of 384 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 385 Input and Output (designed by 'P'). The combinations are listed 386 below: 387 388 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 389 max7322 (4I4O), max7323 (4P4O) 390 391 16 bits: max7324 (8I8O), max7325 (8P8O), 392 max7326 (4I12O), max7327 (4P12O) 393 394 Board setup code must specify the model to use, and the start 395 number for these GPIOs. 396 397config GPIO_MAX732X_IRQ 398 bool "Interrupt controller support for MAX732x" 399 depends on GPIO_MAX732X=y 400 help 401 Say yes here to enable the max732x to be used as an interrupt 402 controller. It requires the driver to be built in the kernel. 403 404config GPIO_MC9S08DZ60 405 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 406 depends on I2C=y && MACH_MX35_3DS 407 help 408 Select this to enable the MC9S08DZ60 GPIO driver 409 410config GPIO_PCA953X 411 tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports" 412 depends on I2C 413 help 414 Say yes here to provide access to several register-oriented 415 SMBus I/O expanders, made mostly by NXP or TI. Compatible 416 models include: 417 418 4 bits: pca9536, pca9537 419 420 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 421 pca9556, pca9557, pca9574, tca6408 422 423 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 424 tca6416 425 426config GPIO_PCA953X_IRQ 427 bool "Interrupt controller support for PCA953x" 428 depends on GPIO_PCA953X=y 429 help 430 Say yes here to enable the pca953x to be used as an interrupt 431 controller. It requires the driver to be built in the kernel. 432 433config GPIO_PCF857X 434 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 435 depends on I2C 436 select IRQ_DOMAIN 437 help 438 Say yes here to provide access to most "quasi-bidirectional" I2C 439 GPIO expanders used for additional digital outputs or inputs. 440 Most of these parts are from NXP, though TI is a second source for 441 some of them. Compatible models include: 442 443 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 444 pca9670, pca9672, pca9674, pca9674a, 445 max7328, max7329 446 447 16 bits: pcf8575, pcf8575c, pca8575, 448 pca9671, pca9673, pca9675 449 450 Your board setup code will need to declare the expanders in 451 use, and assign numbers to the GPIOs they expose. Those GPIOs 452 can then be used from drivers and other kernel code, just like 453 other GPIOs, but only accessible from task contexts. 454 455 This driver provides an in-kernel interface to those GPIOs using 456 platform-neutral GPIO calls. 457 458config GPIO_RC5T583 459 bool "RICOH RC5T583 GPIO" 460 depends on MFD_RC5T583 461 help 462 Select this option to enable GPIO driver for the Ricoh RC5T583 463 chip family. 464 This driver provides the support for driving/reading the gpio pins 465 of RC5T583 device through standard gpio library. 466 467config GPIO_SX150X 468 bool "Semtech SX150x I2C GPIO expander" 469 depends on I2C=y 470 default n 471 help 472 Say yes here to provide support for Semtech SX150-series I2C 473 GPIO expanders. Compatible models include: 474 475 8 bits: sx1508q 476 16 bits: sx1509q 477 478config GPIO_STMPE 479 bool "STMPE GPIOs" 480 depends on MFD_STMPE 481 help 482 This enables support for the GPIOs found on the STMPE I/O 483 Expanders. 484 485config GPIO_STP_XWAY 486 bool "XWAY STP GPIOs" 487 depends on SOC_XWAY 488 help 489 This enables support for the Serial To Parallel (STP) unit found on 490 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 491 that can be up to 24 bit. This peripheral is aimed at driving leds. 492 Some of the gpios/leds can be auto updated by the soc with dsl and 493 phy status. 494 495config GPIO_TC3589X 496 bool "TC3589X GPIOs" 497 depends on MFD_TC3589X 498 help 499 This enables support for the GPIOs found on the TC3589X 500 I/O Expander. 501 502config GPIO_TPS65912 503 tristate "TI TPS65912 GPIO" 504 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 505 help 506 This driver supports TPS65912 gpio chip 507 508config GPIO_TWL4030 509 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 510 depends on TWL4030_CORE 511 help 512 Say yes here to access the GPIO signals of various multi-function 513 power management chips from Texas Instruments. 514 515config GPIO_TWL6040 516 tristate "TWL6040 GPO" 517 depends on TWL6040_CORE 518 help 519 Say yes here to access the GPO signals of twl6040 520 audio chip from Texas Instruments. 521 522config GPIO_WM831X 523 tristate "WM831x GPIOs" 524 depends on MFD_WM831X 525 help 526 Say yes here to access the GPIO signals of WM831x power management 527 chips from Wolfson Microelectronics. 528 529config GPIO_WM8350 530 tristate "WM8350 GPIOs" 531 depends on MFD_WM8350 532 help 533 Say yes here to access the GPIO signals of WM8350 power management 534 chips from Wolfson Microelectronics. 535 536config GPIO_WM8994 537 tristate "WM8994 GPIOs" 538 depends on MFD_WM8994 539 help 540 Say yes here to access the GPIO signals of WM8994 audio hub 541 CODECs from Wolfson Microelectronics. 542 543config GPIO_ADP5520 544 tristate "GPIO Support for ADP5520 PMIC" 545 depends on PMIC_ADP5520 546 help 547 This option enables support for on-chip GPIO found 548 on Analog Devices ADP5520 PMICs. 549 550config GPIO_ADP5588 551 tristate "ADP5588 I2C GPIO expander" 552 depends on I2C 553 help 554 This option enables support for 18 GPIOs found 555 on Analog Devices ADP5588 GPIO Expanders. 556 557config GPIO_ADP5588_IRQ 558 bool "Interrupt controller support for ADP5588" 559 depends on GPIO_ADP5588=y 560 help 561 Say yes here to enable the adp5588 to be used as an interrupt 562 controller. It requires the driver to be built in the kernel. 563 564config GPIO_ADNP 565 tristate "Avionic Design N-bit GPIO expander" 566 depends on I2C && OF_GPIO 567 help 568 This option enables support for N GPIOs found on Avionic Design 569 I2C GPIO expanders. The register space will be extended by powers 570 of two, so the controller will need to accommodate for that. For 571 example: if a controller provides 48 pins, 6 registers will be 572 enough to represent all pins, but the driver will assume a 573 register layout for 64 pins (8 registers). 574 575comment "PCI GPIO expanders:" 576 577config GPIO_CS5535 578 tristate "AMD CS5535/CS5536 GPIO support" 579 depends on PCI && X86 && MFD_CS5535 580 help 581 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 582 can be used for quite a number of things. The CS5535/6 is found on 583 AMD Geode and Lemote Yeeloong devices. 584 585 If unsure, say N. 586 587config GPIO_BT8XX 588 tristate "BT8XX GPIO abuser" 589 depends on PCI && VIDEO_BT848=n 590 help 591 The BT8xx frame grabber chip has 24 GPIO pins than can be abused 592 as a cheap PCI GPIO card. 593 594 This chip can be found on Miro, Hauppauge and STB TV-cards. 595 596 The card needs to be physically altered for using it as a 597 GPIO card. For more information on how to build a GPIO card 598 from a BT8xx TV card, see the documentation file at 599 Documentation/bt8xxgpio.txt 600 601 If unsure, say N. 602 603config GPIO_AMD8111 604 tristate "AMD 8111 GPIO driver" 605 depends on PCI 606 help 607 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 608 609 Note, that usually system firmware/ACPI handles GPIO pins on their 610 own and users might easily break their systems with uncarefull usage 611 of this driver! 612 613 If unsure, say N 614 615config GPIO_LANGWELL 616 bool "Intel Langwell/Penwell GPIO support" 617 depends on PCI && X86 618 select IRQ_DOMAIN 619 help 620 Say Y here to support Intel Langwell/Penwell GPIO. 621 622config GPIO_PCH 623 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 624 depends on PCI && X86 625 select GENERIC_IRQ_CHIP 626 help 627 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 628 which is an IOH(Input/Output Hub) for x86 embedded processor. 629 This driver can access PCH GPIO device. 630 631 This driver also can be used for LAPIS Semiconductor IOH(Input/ 632 Output Hub), ML7223 and ML7831. 633 ML7223 IOH is for MP(Media Phone) use. 634 ML7831 IOH is for general purpose use. 635 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 636 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 637 638config GPIO_ML_IOH 639 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 640 depends on PCI 641 select GENERIC_IRQ_CHIP 642 help 643 ML7213 is companion chip for Intel Atom E6xx series. 644 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 645 Hub) which is for IVI(In-Vehicle Infotainment) use. 646 This driver can access the IOH's GPIO device. 647 648config GPIO_SODAVILLE 649 bool "Intel Sodaville GPIO support" 650 depends on X86 && PCI && OF 651 select GPIO_GENERIC 652 select GENERIC_IRQ_CHIP 653 help 654 Say Y here to support Intel Sodaville GPIO. 655 656config GPIO_TIMBERDALE 657 bool "Support for timberdale GPIO IP" 658 depends on MFD_TIMBERDALE && HAS_IOMEM 659 ---help--- 660 Add support for the GPIO IP in the timberdale FPGA. 661 662config GPIO_RDC321X 663 tristate "RDC R-321x GPIO support" 664 depends on PCI 665 select MFD_CORE 666 select MFD_RDC321X 667 help 668 Support for the RDC R321x SoC GPIOs over southbridge 669 PCI configuration space. 670 671comment "SPI GPIO expanders:" 672 673config GPIO_MAX7301 674 tristate "Maxim MAX7301 GPIO expander" 675 depends on SPI_MASTER 676 select GPIO_MAX730X 677 help 678 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 679 680config GPIO_MCP23S08 681 tristate "Microchip MCP23xxx I/O expander" 682 depends on (SPI_MASTER && !I2C) || I2C 683 help 684 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 685 I/O expanders. 686 This provides a GPIO interface supporting inputs and outputs. 687 688config GPIO_MC33880 689 tristate "Freescale MC33880 high-side/low-side switch" 690 depends on SPI_MASTER 691 help 692 SPI driver for Freescale MC33880 high-side/low-side switch. 693 This provides GPIO interface supporting inputs and outputs. 694 695config GPIO_74X164 696 tristate "74x164 serial-in/parallel-out 8-bits shift register" 697 depends on SPI_MASTER 698 help 699 Platform driver for 74x164 compatible serial-in/parallel-out 700 8-outputs shift registers. This driver can be used to provide access 701 to more gpio outputs. 702 703comment "AC97 GPIO expanders:" 704 705config GPIO_UCB1400 706 bool "Philips UCB1400 GPIO" 707 depends on UCB1400_CORE 708 help 709 This enables support for the Philips UCB1400 GPIO pins. 710 The UCB1400 is an AC97 audio codec. 711 712comment "LPC GPIO expanders:" 713 714config GPIO_KEMPLD 715 tristate "Kontron ETX / COMexpress GPIO" 716 depends on MFD_KEMPLD 717 help 718 This enables support for the PLD GPIO interface on some Kontron ETX 719 and COMexpress (ETXexpress) modules. 720 721 This driver can also be built as a module. If so, the module will be 722 called gpio-kempld. 723 724comment "MODULbus GPIO expanders:" 725 726config GPIO_JANZ_TTL 727 tristate "Janz VMOD-TTL Digital IO Module" 728 depends on MFD_JANZ_CMODIO 729 help 730 This enables support for the Janz VMOD-TTL Digital IO module. 731 This driver provides support for driving the pins in output 732 mode only. Input mode is not supported. 733 734config GPIO_PALMAS 735 bool "TI PALMAS series PMICs GPIO" 736 depends on MFD_PALMAS 737 help 738 Select this option to enable GPIO driver for the TI PALMAS 739 series chip family. 740 741config GPIO_TPS6586X 742 bool "TPS6586X GPIO" 743 depends on MFD_TPS6586X 744 help 745 Select this option to enable GPIO driver for the TPS6586X 746 chip family. 747 748config GPIO_TPS65910 749 bool "TPS65910 GPIO" 750 depends on MFD_TPS65910 751 help 752 Select this option to enable GPIO driver for the TPS65910 753 chip family. 754 755config GPIO_MSIC 756 bool "Intel MSIC mixed signal gpio support" 757 depends on MFD_INTEL_MSIC 758 help 759 Enable support for GPIO on intel MSIC controllers found in 760 intel MID devices 761 762comment "USB GPIO expanders:" 763 764config GPIO_VIPERBOARD 765 tristate "Viperboard GPIO a & b support" 766 depends on MFD_VIPERBOARD && USB 767 help 768 Say yes here to access the GPIO signals of Nano River 769 Technologies Viperboard. There are two GPIO chips on the 770 board: gpioa and gpiob. 771 See viperboard API specification and Nano 772 River Tech's viperboard.h for detailed meaning 773 of the module parameters. 774 775endif 776