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