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 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 || COMPILE_TEST 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 && OF_GPIO 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_MOXART 160 bool "MOXART GPIO support" 161 depends on ARCH_MOXART 162 help 163 Select this option to enable GPIO driver for 164 MOXA ART SoC devices. 165 166config GPIO_MPC5200 167 def_bool y 168 depends on PPC_MPC52xx 169 170config GPIO_MPC8XXX 171 bool "MPC512x/MPC8xxx GPIO support" 172 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 173 FSL_SOC_BOOKE || PPC_86xx 174 help 175 Say Y here if you're going to use hardware that connects to the 176 MPC512x/831x/834x/837x/8572/8610 GPIOs. 177 178config GPIO_MSM_V1 179 tristate "Qualcomm MSM GPIO v1" 180 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) 181 help 182 Say yes here to support the GPIO interface on ARM v6 based 183 Qualcomm MSM chips. Most of the pins on the MSM can be 184 selected for GPIO, and are controlled by this driver. 185 186config GPIO_MSM_V2 187 tristate "Qualcomm MSM GPIO v2" 188 depends on GPIOLIB && OF && ARCH_MSM 189 help 190 Say yes here to support the GPIO interface on ARM v7 based 191 Qualcomm MSM chips. Most of the pins on the MSM can be 192 selected for GPIO, and are controlled by this driver. 193 194config GPIO_MVEBU 195 def_bool y 196 depends on PLAT_ORION 197 depends on OF 198 select GPIO_GENERIC 199 select GENERIC_IRQ_CHIP 200 201config GPIO_MXC 202 def_bool y 203 depends on ARCH_MXC 204 select GPIO_GENERIC 205 select GENERIC_IRQ_CHIP 206 207config GPIO_MXS 208 def_bool y 209 depends on ARCH_MXS 210 select GPIO_GENERIC 211 select GENERIC_IRQ_CHIP 212 213config GPIO_OCTEON 214 tristate "Cavium OCTEON GPIO" 215 depends on GPIOLIB && CAVIUM_OCTEON_SOC 216 default y 217 help 218 Say yes here to support the on-chip GPIO lines on the OCTEON 219 family of SOCs. 220 221config GPIO_PL061 222 bool "PrimeCell PL061 GPIO support" 223 depends on ARM_AMBA 224 select GENERIC_IRQ_CHIP 225 help 226 Say yes here to support the PrimeCell PL061 GPIO device 227 228config GPIO_PXA 229 bool "PXA GPIO support" 230 depends on ARCH_PXA || ARCH_MMP 231 help 232 Say yes here to support the PXA GPIO device 233 234config GPIO_RCAR 235 tristate "Renesas R-Car GPIO" 236 depends on ARM 237 help 238 Say yes here to support GPIO on Renesas R-Car SoCs. 239 240config GPIO_SAMSUNG 241 bool 242 depends on PLAT_SAMSUNG 243 help 244 Legacy GPIO support. Use only for platforms without support for 245 pinctrl. 246 247config GPIO_SCH311X 248 tristate "SMSC SCH311x SuperI/O GPIO" 249 help 250 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 251 SCH3116 "Super I/O" chipsets. 252 253 To compile this driver as a module, choose M here: the module will 254 be called gpio-sch311x. 255 256config GPIO_SPEAR_SPICS 257 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 258 depends on PLAT_SPEAR 259 select GENERIC_IRQ_CHIP 260 help 261 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 262 263config GPIO_STA2X11 264 bool "STA2x11/ConneXt GPIO support" 265 depends on MFD_STA2X11 266 select GENERIC_IRQ_CHIP 267 help 268 Say yes here to support the STA2x11/ConneXt GPIO device. 269 The GPIO module has 128 GPIO pins with alternate functions. 270 271config GPIO_TS5500 272 tristate "TS-5500 DIO blocks and compatibles" 273 help 274 This driver supports Digital I/O exposed by pin blocks found on some 275 Technologic Systems platforms. It includes, but is not limited to, 3 276 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 277 LCD port. 278 279config GPIO_TZ1090 280 bool "Toumaz Xenif TZ1090 GPIO support" 281 depends on SOC_TZ1090 282 select GENERIC_IRQ_CHIP 283 default y 284 help 285 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 286 287config GPIO_TZ1090_PDC 288 bool "Toumaz Xenif TZ1090 PDC GPIO support" 289 depends on SOC_TZ1090 290 default y 291 help 292 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 293 294config GPIO_XILINX 295 bool "Xilinx GPIO support" 296 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ 297 help 298 Say yes here to support the Xilinx FPGA GPIO device 299 300config GPIO_XTENSA 301 bool "Xtensa GPIO32 support" 302 depends on XTENSA 303 depends on HAVE_XTENSA_GPIO32 304 depends on !SMP 305 help 306 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 307 and EXPSTATE (output) ports 308 309config GPIO_VR41XX 310 tristate "NEC VR4100 series General-purpose I/O Uint support" 311 depends on CPU_VR41XX 312 help 313 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 314 315config GPIO_SCH 316 tristate "Intel SCH/TunnelCreek/Centerton GPIO" 317 depends on PCI && X86 318 select MFD_CORE 319 select LPC_SCH 320 help 321 Say yes here to support GPIO interface on Intel Poulsbo SCH, 322 Intel Tunnel Creek processor or Intel Centerton processor. 323 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 324 powered by the core power rail and are turned off during sleep 325 modes (S3 and higher). The remaining four GPIOs are powered by 326 the Intel SCH suspend power supply. These GPIOs remain 327 active during S3. The suspend powered GPIOs can be used to wake the 328 system from the Suspend-to-RAM state. 329 The Intel Tunnel Creek processor has 5 GPIOs powered by the 330 core power rail and 9 from suspend power supply. 331 The Intel Centerton processor has a total of 30 GPIO pins. 332 Twenty-one are powered by the core power rail and 9 from the 333 suspend power supply. 334 335config GPIO_ICH 336 tristate "Intel ICH GPIO" 337 depends on PCI && X86 338 select MFD_CORE 339 select LPC_ICH 340 help 341 Say yes here to support the GPIO functionality of a number of Intel 342 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 343 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 344 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 345 346 If unsure, say N. 347 348config GPIO_IOP 349 tristate "Intel IOP GPIO" 350 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 351 help 352 Say yes here to support the GPIO functionality of a number of Intel 353 IOP32X or IOP33X. 354 355 If unsure, say N. 356 357config GPIO_VX855 358 tristate "VIA VX855/VX875 GPIO" 359 depends on PCI 360 select MFD_CORE 361 select MFD_VX855 362 help 363 Support access to the VX855/VX875 GPIO lines through the gpio library. 364 365 This driver provides common support for accessing the device, 366 additional drivers must be enabled in order to use the 367 functionality of the device. 368 369config GPIO_GE_FPGA 370 bool "GE FPGA based GPIO" 371 depends on GE_FPGA 372 help 373 Support for common GPIO functionality provided on some GE Single Board 374 Computers. 375 376 This driver provides basic support (configure as input or output, read 377 and write pin state) for GPIO implemented in a number of GE single 378 board computers. 379 380config GPIO_LYNXPOINT 381 tristate "Intel Lynxpoint GPIO support" 382 depends on ACPI && X86 383 select IRQ_DOMAIN 384 help 385 driver for GPIO functionality on Intel Lynxpoint PCH chipset 386 Requires ACPI device enumeration code to set up a platform device. 387 388config GPIO_GRGPIO 389 tristate "Aeroflex Gaisler GRGPIO support" 390 depends on OF 391 select GPIO_GENERIC 392 select IRQ_DOMAIN 393 help 394 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 395 VHDL IP core library. 396 397config GPIO_TB10X 398 bool 399 select OF_GPIO 400 401comment "I2C GPIO expanders:" 402 403config GPIO_ARIZONA 404 tristate "Wolfson Microelectronics Arizona class devices" 405 depends on MFD_ARIZONA 406 help 407 Support for GPIOs on Wolfson Arizona class devices. 408 409config GPIO_MAX7300 410 tristate "Maxim MAX7300 GPIO expander" 411 depends on I2C 412 select GPIO_MAX730X 413 help 414 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 415 416config GPIO_MAX732X 417 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 418 depends on I2C 419 help 420 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 421 Port Expanders. Each IO port on these chips has a fixed role of 422 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 423 Input and Output (designed by 'P'). The combinations are listed 424 below: 425 426 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 427 max7322 (4I4O), max7323 (4P4O) 428 429 16 bits: max7324 (8I8O), max7325 (8P8O), 430 max7326 (4I12O), max7327 (4P12O) 431 432 Board setup code must specify the model to use, and the start 433 number for these GPIOs. 434 435config GPIO_MAX732X_IRQ 436 bool "Interrupt controller support for MAX732x" 437 depends on GPIO_MAX732X=y 438 help 439 Say yes here to enable the max732x to be used as an interrupt 440 controller. It requires the driver to be built in the kernel. 441 442config GPIO_MC9S08DZ60 443 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 444 depends on I2C=y && MACH_MX35_3DS 445 help 446 Select this to enable the MC9S08DZ60 GPIO driver 447 448config GPIO_PCA953X 449 tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports" 450 depends on I2C 451 help 452 Say yes here to provide access to several register-oriented 453 SMBus I/O expanders, made mostly by NXP or TI. Compatible 454 models include: 455 456 4 bits: pca9536, pca9537 457 458 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 459 pca9556, pca9557, pca9574, tca6408 460 461 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 462 tca6416 463 464config GPIO_PCA953X_IRQ 465 bool "Interrupt controller support for PCA953x" 466 depends on GPIO_PCA953X=y 467 help 468 Say yes here to enable the pca953x to be used as an interrupt 469 controller. It requires the driver to be built in the kernel. 470 471config GPIO_PCF857X 472 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 473 depends on I2C 474 select IRQ_DOMAIN 475 help 476 Say yes here to provide access to most "quasi-bidirectional" I2C 477 GPIO expanders used for additional digital outputs or inputs. 478 Most of these parts are from NXP, though TI is a second source for 479 some of them. Compatible models include: 480 481 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 482 pca9670, pca9672, pca9674, pca9674a, 483 max7328, max7329 484 485 16 bits: pcf8575, pcf8575c, pca8575, 486 pca9671, pca9673, pca9675 487 488 Your board setup code will need to declare the expanders in 489 use, and assign numbers to the GPIOs they expose. Those GPIOs 490 can then be used from drivers and other kernel code, just like 491 other GPIOs, but only accessible from task contexts. 492 493 This driver provides an in-kernel interface to those GPIOs using 494 platform-neutral GPIO calls. 495 496config GPIO_RC5T583 497 bool "RICOH RC5T583 GPIO" 498 depends on MFD_RC5T583 499 help 500 Select this option to enable GPIO driver for the Ricoh RC5T583 501 chip family. 502 This driver provides the support for driving/reading the gpio pins 503 of RC5T583 device through standard gpio library. 504 505config GPIO_SX150X 506 bool "Semtech SX150x I2C GPIO expander" 507 depends on I2C=y 508 default n 509 help 510 Say yes here to provide support for Semtech SX150-series I2C 511 GPIO expanders. Compatible models include: 512 513 8 bits: sx1508q 514 16 bits: sx1509q 515 516config GPIO_STMPE 517 bool "STMPE GPIOs" 518 depends on MFD_STMPE 519 help 520 This enables support for the GPIOs found on the STMPE I/O 521 Expanders. 522 523config GPIO_STP_XWAY 524 bool "XWAY STP GPIOs" 525 depends on SOC_XWAY 526 help 527 This enables support for the Serial To Parallel (STP) unit found on 528 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 529 that can be up to 24 bit. This peripheral is aimed at driving leds. 530 Some of the gpios/leds can be auto updated by the soc with dsl and 531 phy status. 532 533config GPIO_TC3589X 534 bool "TC3589X GPIOs" 535 depends on MFD_TC3589X 536 help 537 This enables support for the GPIOs found on the TC3589X 538 I/O Expander. 539 540config GPIO_TPS65912 541 tristate "TI TPS65912 GPIO" 542 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 543 help 544 This driver supports TPS65912 gpio chip 545 546config GPIO_TWL4030 547 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 548 depends on TWL4030_CORE 549 help 550 Say yes here to access the GPIO signals of various multi-function 551 power management chips from Texas Instruments. 552 553config GPIO_TWL6040 554 tristate "TWL6040 GPO" 555 depends on TWL6040_CORE 556 help 557 Say yes here to access the GPO signals of twl6040 558 audio chip from Texas Instruments. 559 560config GPIO_WM831X 561 tristate "WM831x GPIOs" 562 depends on MFD_WM831X 563 help 564 Say yes here to access the GPIO signals of WM831x power management 565 chips from Wolfson Microelectronics. 566 567config GPIO_WM8350 568 tristate "WM8350 GPIOs" 569 depends on MFD_WM8350 570 help 571 Say yes here to access the GPIO signals of WM8350 power management 572 chips from Wolfson Microelectronics. 573 574config GPIO_WM8994 575 tristate "WM8994 GPIOs" 576 depends on MFD_WM8994 577 help 578 Say yes here to access the GPIO signals of WM8994 audio hub 579 CODECs from Wolfson Microelectronics. 580 581config GPIO_ADP5520 582 tristate "GPIO Support for ADP5520 PMIC" 583 depends on PMIC_ADP5520 584 help 585 This option enables support for on-chip GPIO found 586 on Analog Devices ADP5520 PMICs. 587 588config GPIO_ADP5588 589 tristate "ADP5588 I2C GPIO expander" 590 depends on I2C 591 help 592 This option enables support for 18 GPIOs found 593 on Analog Devices ADP5588 GPIO Expanders. 594 595config GPIO_ADP5588_IRQ 596 bool "Interrupt controller support for ADP5588" 597 depends on GPIO_ADP5588=y 598 help 599 Say yes here to enable the adp5588 to be used as an interrupt 600 controller. It requires the driver to be built in the kernel. 601 602config GPIO_ADNP 603 tristate "Avionic Design N-bit GPIO expander" 604 depends on I2C && OF_GPIO 605 help 606 This option enables support for N GPIOs found on Avionic Design 607 I2C GPIO expanders. The register space will be extended by powers 608 of two, so the controller will need to accommodate for that. For 609 example: if a controller provides 48 pins, 6 registers will be 610 enough to represent all pins, but the driver will assume a 611 register layout for 64 pins (8 registers). 612 613comment "PCI GPIO expanders:" 614 615config GPIO_CS5535 616 tristate "AMD CS5535/CS5536 GPIO support" 617 depends on PCI && X86 && MFD_CS5535 618 help 619 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 620 can be used for quite a number of things. The CS5535/6 is found on 621 AMD Geode and Lemote Yeeloong devices. 622 623 If unsure, say N. 624 625config GPIO_BT8XX 626 tristate "BT8XX GPIO abuser" 627 depends on PCI && VIDEO_BT848=n 628 help 629 The BT8xx frame grabber chip has 24 GPIO pins than can be abused 630 as a cheap PCI GPIO card. 631 632 This chip can be found on Miro, Hauppauge and STB TV-cards. 633 634 The card needs to be physically altered for using it as a 635 GPIO card. For more information on how to build a GPIO card 636 from a BT8xx TV card, see the documentation file at 637 Documentation/bt8xxgpio.txt 638 639 If unsure, say N. 640 641config GPIO_AMD8111 642 tristate "AMD 8111 GPIO driver" 643 depends on PCI 644 help 645 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 646 647 Note, that usually system firmware/ACPI handles GPIO pins on their 648 own and users might easily break their systems with uncarefull usage 649 of this driver! 650 651 If unsure, say N 652 653config GPIO_INTEL_MID 654 bool "Intel Mid GPIO support" 655 depends on PCI && X86 656 select IRQ_DOMAIN 657 help 658 Say Y here to support Intel Mid GPIO. 659 660config GPIO_PCH 661 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 662 depends on PCI && X86 663 select GENERIC_IRQ_CHIP 664 help 665 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 666 which is an IOH(Input/Output Hub) for x86 embedded processor. 667 This driver can access PCH GPIO device. 668 669 This driver also can be used for LAPIS Semiconductor IOH(Input/ 670 Output Hub), ML7223 and ML7831. 671 ML7223 IOH is for MP(Media Phone) use. 672 ML7831 IOH is for general purpose use. 673 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 674 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 675 676config GPIO_ML_IOH 677 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 678 depends on PCI 679 select GENERIC_IRQ_CHIP 680 help 681 ML7213 is companion chip for Intel Atom E6xx series. 682 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 683 Hub) which is for IVI(In-Vehicle Infotainment) use. 684 This driver can access the IOH's GPIO device. 685 686config GPIO_SODAVILLE 687 bool "Intel Sodaville GPIO support" 688 depends on X86 && PCI && OF 689 select GPIO_GENERIC 690 select GENERIC_IRQ_CHIP 691 help 692 Say Y here to support Intel Sodaville GPIO. 693 694config GPIO_TIMBERDALE 695 bool "Support for timberdale GPIO IP" 696 depends on MFD_TIMBERDALE && HAS_IOMEM 697 ---help--- 698 Add support for the GPIO IP in the timberdale FPGA. 699 700config GPIO_RDC321X 701 tristate "RDC R-321x GPIO support" 702 depends on PCI 703 select MFD_CORE 704 select MFD_RDC321X 705 help 706 Support for the RDC R321x SoC GPIOs over southbridge 707 PCI configuration space. 708 709comment "SPI GPIO expanders:" 710 711config GPIO_MAX7301 712 tristate "Maxim MAX7301 GPIO expander" 713 depends on SPI_MASTER 714 select GPIO_MAX730X 715 help 716 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 717 718config GPIO_MCP23S08 719 tristate "Microchip MCP23xxx I/O expander" 720 depends on (SPI_MASTER && !I2C) || I2C 721 help 722 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 723 I/O expanders. 724 This provides a GPIO interface supporting inputs and outputs. 725 726config GPIO_MC33880 727 tristate "Freescale MC33880 high-side/low-side switch" 728 depends on SPI_MASTER 729 help 730 SPI driver for Freescale MC33880 high-side/low-side switch. 731 This provides GPIO interface supporting inputs and outputs. 732 733config GPIO_74X164 734 tristate "74x164 serial-in/parallel-out 8-bits shift register" 735 depends on SPI_MASTER && OF 736 help 737 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 738 shift registers. This driver can be used to provide access 739 to more gpio outputs. 740 741comment "AC97 GPIO expanders:" 742 743config GPIO_UCB1400 744 tristate "Philips UCB1400 GPIO" 745 depends on UCB1400_CORE 746 help 747 This enables support for the Philips UCB1400 GPIO pins. 748 The UCB1400 is an AC97 audio codec. 749 750comment "LPC GPIO expanders:" 751 752config GPIO_KEMPLD 753 tristate "Kontron ETX / COMexpress GPIO" 754 depends on MFD_KEMPLD 755 help 756 This enables support for the PLD GPIO interface on some Kontron ETX 757 and COMexpress (ETXexpress) modules. 758 759 This driver can also be built as a module. If so, the module will be 760 called gpio-kempld. 761 762comment "MODULbus GPIO expanders:" 763 764config GPIO_JANZ_TTL 765 tristate "Janz VMOD-TTL Digital IO Module" 766 depends on MFD_JANZ_CMODIO 767 help 768 This enables support for the Janz VMOD-TTL Digital IO module. 769 This driver provides support for driving the pins in output 770 mode only. Input mode is not supported. 771 772config GPIO_PALMAS 773 bool "TI PALMAS series PMICs GPIO" 774 depends on MFD_PALMAS 775 help 776 Select this option to enable GPIO driver for the TI PALMAS 777 series chip family. 778 779config GPIO_TPS6586X 780 bool "TPS6586X GPIO" 781 depends on MFD_TPS6586X 782 help 783 Select this option to enable GPIO driver for the TPS6586X 784 chip family. 785 786config GPIO_TPS65910 787 bool "TPS65910 GPIO" 788 depends on MFD_TPS65910 789 help 790 Select this option to enable GPIO driver for the TPS65910 791 chip family. 792 793config GPIO_MSIC 794 bool "Intel MSIC mixed signal gpio support" 795 depends on MFD_INTEL_MSIC 796 help 797 Enable support for GPIO on intel MSIC controllers found in 798 intel MID devices 799 800config GPIO_BCM_KONA 801 bool "Broadcom Kona GPIO" 802 depends on OF_GPIO 803 help 804 Turn on GPIO support for Broadcom "Kona" chips. 805 806comment "USB GPIO expanders:" 807 808config GPIO_VIPERBOARD 809 tristate "Viperboard GPIO a & b support" 810 depends on MFD_VIPERBOARD && USB 811 help 812 Say yes here to access the GPIO signals of Nano River 813 Technologies Viperboard. There are two GPIO chips on the 814 board: gpioa and gpiob. 815 See viperboard API specification and Nano 816 River Tech's viperboard.h for detailed meaning 817 of the module parameters. 818 819endif 820