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_MPC5200 150 def_bool y 151 depends on PPC_MPC52xx 152 153config GPIO_MPC8XXX 154 bool "MPC512x/MPC8xxx GPIO support" 155 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 156 FSL_SOC_BOOKE || PPC_86xx 157 help 158 Say Y here if you're going to use hardware that connects to the 159 MPC512x/831x/834x/837x/8572/8610 GPIOs. 160 161config GPIO_MSM_V1 162 tristate "Qualcomm MSM GPIO v1" 163 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) 164 help 165 Say yes here to support the GPIO interface on ARM v6 based 166 Qualcomm MSM chips. Most of the pins on the MSM can be 167 selected for GPIO, and are controlled by this driver. 168 169config GPIO_MSM_V2 170 tristate "Qualcomm MSM GPIO v2" 171 depends on GPIOLIB && OF && ARCH_MSM 172 help 173 Say yes here to support the GPIO interface on ARM v7 based 174 Qualcomm MSM chips. Most of the pins on the MSM can be 175 selected for GPIO, and are controlled by this driver. 176 177config GPIO_MVEBU 178 def_bool y 179 depends on PLAT_ORION 180 depends on OF 181 select GPIO_GENERIC 182 select GENERIC_IRQ_CHIP 183 184config GPIO_MXC 185 def_bool y 186 depends on ARCH_MXC 187 select GPIO_GENERIC 188 select GENERIC_IRQ_CHIP 189 190config GPIO_MXS 191 def_bool y 192 depends on ARCH_MXS 193 select GPIO_GENERIC 194 select GENERIC_IRQ_CHIP 195 196config GPIO_PL061 197 bool "PrimeCell PL061 GPIO support" 198 depends on ARM && ARM_AMBA 199 select GENERIC_IRQ_CHIP 200 help 201 Say yes here to support the PrimeCell PL061 GPIO device 202 203config GPIO_PXA 204 bool "PXA GPIO support" 205 depends on ARCH_PXA || ARCH_MMP 206 help 207 Say yes here to support the PXA GPIO device 208 209config GPIO_RCAR 210 tristate "Renesas R-Car GPIO" 211 depends on ARM 212 help 213 Say yes here to support GPIO on Renesas R-Car SoCs. 214 215config GPIO_SAMSUNG 216 bool 217 depends on PLAT_SAMSUNG 218 help 219 Legacy GPIO support. Use only for platforms without support for 220 pinctrl. 221 222config GPIO_SPEAR_SPICS 223 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 224 depends on PLAT_SPEAR 225 select GENERIC_IRQ_CHIP 226 help 227 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 228 229config GPIO_STA2X11 230 bool "STA2x11/ConneXt GPIO support" 231 depends on MFD_STA2X11 232 select GENERIC_IRQ_CHIP 233 help 234 Say yes here to support the STA2x11/ConneXt GPIO device. 235 The GPIO module has 128 GPIO pins with alternate functions. 236 237config GPIO_TS5500 238 tristate "TS-5500 DIO blocks and compatibles" 239 help 240 This driver supports Digital I/O exposed by pin blocks found on some 241 Technologic Systems platforms. It includes, but is not limited to, 3 242 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 243 LCD port. 244 245config GPIO_TZ1090 246 bool "Toumaz Xenif TZ1090 GPIO support" 247 depends on SOC_TZ1090 248 default y 249 help 250 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 251 252config GPIO_XILINX 253 bool "Xilinx GPIO support" 254 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ 255 help 256 Say yes here to support the Xilinx FPGA GPIO device 257 258config GPIO_VR41XX 259 tristate "NEC VR4100 series General-purpose I/O Uint support" 260 depends on CPU_VR41XX 261 help 262 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 263 264config GPIO_SCH 265 tristate "Intel SCH/TunnelCreek/Centerton GPIO" 266 depends on PCI && X86 267 select MFD_CORE 268 select LPC_SCH 269 help 270 Say yes here to support GPIO interface on Intel Poulsbo SCH, 271 Intel Tunnel Creek processor or Intel Centerton processor. 272 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 273 powered by the core power rail and are turned off during sleep 274 modes (S3 and higher). The remaining four GPIOs are powered by 275 the Intel SCH suspend power supply. These GPIOs remain 276 active during S3. The suspend powered GPIOs can be used to wake the 277 system from the Suspend-to-RAM state. 278 The Intel Tunnel Creek processor has 5 GPIOs powered by the 279 core power rail and 9 from suspend power supply. 280 The Intel Centerton processor has a total of 30 GPIO pins. 281 Twenty-one are powered by the core power rail and 9 from the 282 suspend power supply. 283 284config GPIO_ICH 285 tristate "Intel ICH GPIO" 286 depends on PCI && X86 287 select MFD_CORE 288 select LPC_ICH 289 help 290 Say yes here to support the GPIO functionality of a number of Intel 291 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 292 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 293 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 294 295 If unsure, say N. 296 297config GPIO_VX855 298 tristate "VIA VX855/VX875 GPIO" 299 depends on PCI && GENERIC_HARDIRQS 300 select MFD_CORE 301 select MFD_VX855 302 help 303 Support access to the VX855/VX875 GPIO lines through the gpio library. 304 305 This driver provides common support for accessing the device, 306 additional drivers must be enabled in order to use the 307 functionality of the device. 308 309config GPIO_GE_FPGA 310 bool "GE FPGA based GPIO" 311 depends on GE_FPGA 312 help 313 Support for common GPIO functionality provided on some GE Single Board 314 Computers. 315 316 This driver provides basic support (configure as input or output, read 317 and write pin state) for GPIO implemented in a number of GE single 318 board computers. 319 320config GPIO_LYNXPOINT 321 bool "Intel Lynxpoint GPIO support" 322 depends on ACPI && X86 323 select IRQ_DOMAIN 324 help 325 driver for GPIO functionality on Intel Lynxpoint PCH chipset 326 Requires ACPI device enumeration code to set up a platform device. 327 328config GPIO_GRGPIO 329 tristate "Aeroflex Gaisler GRGPIO support" 330 depends on OF 331 select GPIO_GENERIC 332 select IRQ_DOMAIN 333 help 334 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 335 VHDL IP core library. 336 337comment "I2C GPIO expanders:" 338 339config GPIO_ARIZONA 340 tristate "Wolfson Microelectronics Arizona class devices" 341 depends on MFD_ARIZONA 342 help 343 Support for GPIOs on Wolfson Arizona class devices. 344 345config GPIO_MAX7300 346 tristate "Maxim MAX7300 GPIO expander" 347 depends on I2C 348 select GPIO_MAX730X 349 help 350 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 351 352config GPIO_MAX732X 353 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 354 depends on I2C 355 help 356 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 357 Port Expanders. Each IO port on these chips has a fixed role of 358 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 359 Input and Output (designed by 'P'). The combinations are listed 360 below: 361 362 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 363 max7322 (4I4O), max7323 (4P4O) 364 365 16 bits: max7324 (8I8O), max7325 (8P8O), 366 max7326 (4I12O), max7327 (4P12O) 367 368 Board setup code must specify the model to use, and the start 369 number for these GPIOs. 370 371config GPIO_MAX732X_IRQ 372 bool "Interrupt controller support for MAX732x" 373 depends on GPIO_MAX732X=y && GENERIC_HARDIRQS 374 help 375 Say yes here to enable the max732x to be used as an interrupt 376 controller. It requires the driver to be built in the kernel. 377 378config GPIO_MC9S08DZ60 379 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 380 depends on I2C=y && MACH_MX35_3DS 381 help 382 Select this to enable the MC9S08DZ60 GPIO driver 383 384config GPIO_PCA953X 385 tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports" 386 depends on I2C 387 help 388 Say yes here to provide access to several register-oriented 389 SMBus I/O expanders, made mostly by NXP or TI. Compatible 390 models include: 391 392 4 bits: pca9536, pca9537 393 394 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 395 pca9556, pca9557, pca9574, tca6408 396 397 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 398 tca6416 399 400config GPIO_PCA953X_IRQ 401 bool "Interrupt controller support for PCA953x" 402 depends on GPIO_PCA953X=y 403 help 404 Say yes here to enable the pca953x to be used as an interrupt 405 controller. It requires the driver to be built in the kernel. 406 407config GPIO_PCF857X 408 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 409 depends on I2C 410 select IRQ_DOMAIN 411 help 412 Say yes here to provide access to most "quasi-bidirectional" I2C 413 GPIO expanders used for additional digital outputs or inputs. 414 Most of these parts are from NXP, though TI is a second source for 415 some of them. Compatible models include: 416 417 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 418 pca9670, pca9672, pca9674, pca9674a, 419 max7328, max7329 420 421 16 bits: pcf8575, pcf8575c, pca8575, 422 pca9671, pca9673, pca9675 423 424 Your board setup code will need to declare the expanders in 425 use, and assign numbers to the GPIOs they expose. Those GPIOs 426 can then be used from drivers and other kernel code, just like 427 other GPIOs, but only accessible from task contexts. 428 429 This driver provides an in-kernel interface to those GPIOs using 430 platform-neutral GPIO calls. 431 432config GPIO_RC5T583 433 bool "RICOH RC5T583 GPIO" 434 depends on MFD_RC5T583 435 help 436 Select this option to enable GPIO driver for the Ricoh RC5T583 437 chip family. 438 This driver provides the support for driving/reading the gpio pins 439 of RC5T583 device through standard gpio library. 440 441config GPIO_SX150X 442 bool "Semtech SX150x I2C GPIO expander" 443 depends on I2C=y 444 default n 445 help 446 Say yes here to provide support for Semtech SX150-series I2C 447 GPIO expanders. Compatible models include: 448 449 8 bits: sx1508q 450 16 bits: sx1509q 451 452config GPIO_STMPE 453 bool "STMPE GPIOs" 454 depends on MFD_STMPE 455 help 456 This enables support for the GPIOs found on the STMPE I/O 457 Expanders. 458 459config GPIO_STP_XWAY 460 bool "XWAY STP GPIOs" 461 depends on SOC_XWAY 462 help 463 This enables support for the Serial To Parallel (STP) unit found on 464 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 465 that can be up to 24 bit. This peripheral is aimed at driving leds. 466 Some of the gpios/leds can be auto updated by the soc with dsl and 467 phy status. 468 469config GPIO_TC3589X 470 bool "TC3589X GPIOs" 471 depends on MFD_TC3589X 472 help 473 This enables support for the GPIOs found on the TC3589X 474 I/O Expander. 475 476config GPIO_TPS65912 477 tristate "TI TPS65912 GPIO" 478 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 479 help 480 This driver supports TPS65912 gpio chip 481 482config GPIO_TWL4030 483 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 484 depends on TWL4030_CORE 485 help 486 Say yes here to access the GPIO signals of various multi-function 487 power management chips from Texas Instruments. 488 489config GPIO_TWL6040 490 tristate "TWL6040 GPO" 491 depends on TWL6040_CORE 492 help 493 Say yes here to access the GPO signals of twl6040 494 audio chip from Texas Instruments. 495 496config GPIO_WM831X 497 tristate "WM831x GPIOs" 498 depends on MFD_WM831X 499 help 500 Say yes here to access the GPIO signals of WM831x power management 501 chips from Wolfson Microelectronics. 502 503config GPIO_WM8350 504 tristate "WM8350 GPIOs" 505 depends on MFD_WM8350 506 help 507 Say yes here to access the GPIO signals of WM8350 power management 508 chips from Wolfson Microelectronics. 509 510config GPIO_WM8994 511 tristate "WM8994 GPIOs" 512 depends on MFD_WM8994 513 help 514 Say yes here to access the GPIO signals of WM8994 audio hub 515 CODECs from Wolfson Microelectronics. 516 517config GPIO_ADP5520 518 tristate "GPIO Support for ADP5520 PMIC" 519 depends on PMIC_ADP5520 520 help 521 This option enables support for on-chip GPIO found 522 on Analog Devices ADP5520 PMICs. 523 524config GPIO_ADP5588 525 tristate "ADP5588 I2C GPIO expander" 526 depends on I2C 527 help 528 This option enables support for 18 GPIOs found 529 on Analog Devices ADP5588 GPIO Expanders. 530 531config GPIO_ADP5588_IRQ 532 bool "Interrupt controller support for ADP5588" 533 depends on GPIO_ADP5588=y 534 help 535 Say yes here to enable the adp5588 to be used as an interrupt 536 controller. It requires the driver to be built in the kernel. 537 538config GPIO_ADNP 539 tristate "Avionic Design N-bit GPIO expander" 540 depends on I2C && OF_GPIO 541 help 542 This option enables support for N GPIOs found on Avionic Design 543 I2C GPIO expanders. The register space will be extended by powers 544 of two, so the controller will need to accommodate for that. For 545 example: if a controller provides 48 pins, 6 registers will be 546 enough to represent all pins, but the driver will assume a 547 register layout for 64 pins (8 registers). 548 549comment "PCI GPIO expanders:" 550 551config GPIO_CS5535 552 tristate "AMD CS5535/CS5536 GPIO support" 553 depends on PCI && X86 && MFD_CS5535 554 help 555 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 556 can be used for quite a number of things. The CS5535/6 is found on 557 AMD Geode and Lemote Yeeloong devices. 558 559 If unsure, say N. 560 561config GPIO_BT8XX 562 tristate "BT8XX GPIO abuser" 563 depends on PCI && VIDEO_BT848=n 564 help 565 The BT8xx frame grabber chip has 24 GPIO pins than can be abused 566 as a cheap PCI GPIO card. 567 568 This chip can be found on Miro, Hauppauge and STB TV-cards. 569 570 The card needs to be physically altered for using it as a 571 GPIO card. For more information on how to build a GPIO card 572 from a BT8xx TV card, see the documentation file at 573 Documentation/bt8xxgpio.txt 574 575 If unsure, say N. 576 577config GPIO_AMD8111 578 tristate "AMD 8111 GPIO driver" 579 depends on PCI 580 help 581 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 582 583 Note, that usually system firmware/ACPI handles GPIO pins on their 584 own and users might easily break their systems with uncarefull usage 585 of this driver! 586 587 If unsure, say N 588 589config GPIO_LANGWELL 590 bool "Intel Langwell/Penwell GPIO support" 591 depends on PCI && X86 592 select IRQ_DOMAIN 593 help 594 Say Y here to support Intel Langwell/Penwell GPIO. 595 596config GPIO_PCH 597 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 598 depends on PCI && X86 599 select GENERIC_IRQ_CHIP 600 help 601 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 602 which is an IOH(Input/Output Hub) for x86 embedded processor. 603 This driver can access PCH GPIO device. 604 605 This driver also can be used for LAPIS Semiconductor IOH(Input/ 606 Output Hub), ML7223 and ML7831. 607 ML7223 IOH is for MP(Media Phone) use. 608 ML7831 IOH is for general purpose use. 609 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 610 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 611 612config GPIO_ML_IOH 613 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 614 depends on PCI 615 select GENERIC_IRQ_CHIP 616 help 617 ML7213 is companion chip for Intel Atom E6xx series. 618 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 619 Hub) which is for IVI(In-Vehicle Infotainment) use. 620 This driver can access the IOH's GPIO device. 621 622config GPIO_SODAVILLE 623 bool "Intel Sodaville GPIO support" 624 depends on X86 && PCI && OF 625 select GPIO_GENERIC 626 select GENERIC_IRQ_CHIP 627 help 628 Say Y here to support Intel Sodaville GPIO. 629 630config GPIO_TIMBERDALE 631 bool "Support for timberdale GPIO IP" 632 depends on MFD_TIMBERDALE && HAS_IOMEM 633 ---help--- 634 Add support for the GPIO IP in the timberdale FPGA. 635 636config GPIO_RDC321X 637 tristate "RDC R-321x GPIO support" 638 depends on PCI && GENERIC_HARDIRQS 639 select MFD_CORE 640 select MFD_RDC321X 641 help 642 Support for the RDC R321x SoC GPIOs over southbridge 643 PCI configuration space. 644 645comment "SPI GPIO expanders:" 646 647config GPIO_MAX7301 648 tristate "Maxim MAX7301 GPIO expander" 649 depends on SPI_MASTER 650 select GPIO_MAX730X 651 help 652 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 653 654config GPIO_MCP23S08 655 tristate "Microchip MCP23xxx I/O expander" 656 depends on (SPI_MASTER && !I2C) || I2C 657 help 658 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 659 I/O expanders. 660 This provides a GPIO interface supporting inputs and outputs. 661 662config GPIO_MC33880 663 tristate "Freescale MC33880 high-side/low-side switch" 664 depends on SPI_MASTER 665 help 666 SPI driver for Freescale MC33880 high-side/low-side switch. 667 This provides GPIO interface supporting inputs and outputs. 668 669config GPIO_74X164 670 tristate "74x164 serial-in/parallel-out 8-bits shift register" 671 depends on SPI_MASTER 672 help 673 Platform driver for 74x164 compatible serial-in/parallel-out 674 8-outputs shift registers. This driver can be used to provide access 675 to more gpio outputs. 676 677comment "AC97 GPIO expanders:" 678 679config GPIO_UCB1400 680 bool "Philips UCB1400 GPIO" 681 depends on UCB1400_CORE 682 help 683 This enables support for the Philips UCB1400 GPIO pins. 684 The UCB1400 is an AC97 audio codec. 685 686comment "MODULbus GPIO expanders:" 687 688config GPIO_JANZ_TTL 689 tristate "Janz VMOD-TTL Digital IO Module" 690 depends on MFD_JANZ_CMODIO 691 help 692 This enables support for the Janz VMOD-TTL Digital IO module. 693 This driver provides support for driving the pins in output 694 mode only. Input mode is not supported. 695 696config GPIO_PALMAS 697 bool "TI PALMAS series PMICs GPIO" 698 depends on MFD_PALMAS 699 help 700 Select this option to enable GPIO driver for the TI PALMAS 701 series chip family. 702 703config GPIO_TPS6586X 704 bool "TPS6586X GPIO" 705 depends on MFD_TPS6586X 706 help 707 Select this option to enable GPIO driver for the TPS6586X 708 chip family. 709 710config GPIO_TPS65910 711 bool "TPS65910 GPIO" 712 depends on MFD_TPS65910 713 help 714 Select this option to enable GPIO driver for the TPS65910 715 chip family. 716 717config GPIO_MSIC 718 bool "Intel MSIC mixed signal gpio support" 719 depends on MFD_INTEL_MSIC 720 help 721 Enable support for GPIO on intel MSIC controllers found in 722 intel MID devices 723 724comment "USB GPIO expanders:" 725 726config GPIO_VIPERBOARD 727 tristate "Viperboard GPIO a & b support" 728 depends on MFD_VIPERBOARD && USB 729 help 730 Say yes here to access the GPIO signals of Nano River 731 Technologies Viperboard. There are two GPIO chips on the 732 board: gpioa and gpiob. 733 See viperboard API specification and Nano 734 River Tech's viperboard.h for detailed meaning 735 of the module parameters. 736 737endif 738