1# 2# GPIO infrastructure and drivers 3# 4 5config ARCH_HAVE_CUSTOM_GPIO_H 6 bool 7 help 8 Selecting this config option from the architecture Kconfig allows 9 the architecture to provide a custom asm/gpio.h implementation 10 overriding the default implementations. New uses of this are 11 strongly discouraged. 12 13config ARCH_WANT_OPTIONAL_GPIOLIB 14 bool 15 help 16 Select this config option from the architecture Kconfig, if 17 it is possible to use gpiolib on the architecture, but let the 18 user decide whether to actually build it or not. 19 Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does 20 not depend on GPIOs being available, but rather let the user 21 decide whether he needs it or not. 22 23config ARCH_REQUIRE_GPIOLIB 24 bool 25 select GPIOLIB 26 help 27 Platforms select gpiolib if they use this infrastructure 28 for all their GPIOs, usually starting with ones integrated 29 into SOC processors. 30 Selecting this from the architecture code will cause the gpiolib 31 code to always get built in. 32 33 34menuconfig GPIOLIB 35 bool "GPIO Support" 36 depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB 37 help 38 This enables GPIO support through the generic GPIO library. 39 You only need to enable this, if you also want to enable 40 one or more of the GPIO drivers below. 41 42 If unsure, say N. 43 44if GPIOLIB 45 46config GPIO_DEVRES 47 def_bool y 48 depends on HAS_IOMEM 49 50config OF_GPIO 51 def_bool y 52 depends on OF 53 54config GPIO_ACPI 55 def_bool y 56 depends on ACPI 57 58config GPIOLIB_IRQCHIP 59 bool 60 61config DEBUG_GPIO 62 bool "Debug GPIO calls" 63 depends on DEBUG_KERNEL 64 help 65 Say Y here to add some extra checks and diagnostics to GPIO calls. 66 These checks help ensure that GPIOs have been properly initialized 67 before they are used, and that sleeping calls are not made from 68 non-sleeping contexts. They can make bitbanged serial protocols 69 slower. The diagnostics help catch the type of setup errors 70 that are most common when setting up new platforms or boards. 71 72config GPIO_SYSFS 73 bool "/sys/class/gpio/... (sysfs interface)" 74 depends on SYSFS 75 help 76 Say Y here to add a sysfs interface for GPIOs. 77 78 This is mostly useful to work around omissions in a system's 79 kernel support. Those are common in custom and semicustom 80 hardware assembled using standard kernels with a minimum of 81 custom patches. In those cases, userspace code may import 82 a given GPIO from the kernel, if no kernel driver requested it. 83 84 Kernel drivers may also request that a particular GPIO be 85 exported to userspace; this can be useful when debugging. 86 87config GPIO_GENERIC 88 tristate 89 90# put drivers in the right section, in alphabetical order 91 92config GPIO_DA9052 93 tristate "Dialog DA9052 GPIO" 94 depends on PMIC_DA9052 95 help 96 Say yes here to enable the GPIO driver for the DA9052 chip. 97 98config GPIO_DA9055 99 tristate "Dialog Semiconductor DA9055 GPIO" 100 depends on MFD_DA9055 101 help 102 Say yes here to enable the GPIO driver for the DA9055 chip. 103 104 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 105 be controller by this driver. 106 107 If driver is built as a module it will be called gpio-da9055. 108 109config GPIO_MAX730X 110 tristate 111 112comment "Memory mapped GPIO drivers:" 113 114config GPIO_CLPS711X 115 tristate "CLPS711X GPIO support" 116 depends on ARCH_CLPS711X || COMPILE_TEST 117 select GPIO_GENERIC 118 help 119 Say yes here to support GPIO on CLPS711X SoCs. 120 121config GPIO_DAVINCI 122 bool "TI Davinci/Keystone GPIO support" 123 default y if ARCH_DAVINCI 124 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 125 help 126 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 127 128config GPIO_GENERIC_PLATFORM 129 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 130 select GPIO_GENERIC 131 help 132 Say yes here to support basic platform_device memory-mapped GPIO controllers. 133 134config GPIO_DWAPB 135 tristate "Synopsys DesignWare APB GPIO driver" 136 select GPIO_GENERIC 137 select GENERIC_IRQ_CHIP 138 depends on OF_GPIO 139 help 140 Say Y or M here to build support for the Synopsys DesignWare APB 141 GPIO block. 142 143config GPIO_IT8761E 144 tristate "IT8761E GPIO support" 145 depends on X86 # unconditional access to IO space. 146 help 147 Say yes here to support GPIO functionality of IT8761E super I/O chip. 148 149config GPIO_EM 150 tristate "Emma Mobile GPIO" 151 depends on ARM && OF_GPIO 152 help 153 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 154 155config GPIO_EP93XX 156 def_bool y 157 depends on ARCH_EP93XX 158 select GPIO_GENERIC 159 160config GPIO_ZEVIO 161 bool "LSI ZEVIO SoC memory mapped GPIOs" 162 depends on ARM && OF_GPIO 163 help 164 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 165 166config GPIO_MM_LANTIQ 167 bool "Lantiq Memory mapped GPIOs" 168 depends on LANTIQ && SOC_XWAY 169 help 170 This enables support for memory mapped GPIOs on the External Bus Unit 171 (EBU) found on Lantiq SoCs. The gpios are output only as they are 172 created by attaching a 16bit latch to the bus. 173 174config GPIO_F7188X 175 tristate "F71882FG and F71889F GPIO support" 176 depends on X86 177 help 178 This option enables support for GPIOs found on Fintek Super-I/O 179 chips F71882FG and F71889F. 180 181 To compile this driver as a module, choose M here: the module will 182 be called f7188x-gpio. 183 184config GPIO_MOXART 185 bool "MOXART GPIO support" 186 depends on ARCH_MOXART 187 help 188 Select this option to enable GPIO driver for 189 MOXA ART SoC devices. 190 191config GPIO_MPC5200 192 def_bool y 193 depends on PPC_MPC52xx 194 195config GPIO_MPC8XXX 196 bool "MPC512x/MPC8xxx GPIO support" 197 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 198 FSL_SOC_BOOKE || PPC_86xx 199 help 200 Say Y here if you're going to use hardware that connects to the 201 MPC512x/831x/834x/837x/8572/8610 GPIOs. 202 203config GPIO_MSM_V1 204 tristate "Qualcomm MSM GPIO v1" 205 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) 206 help 207 Say yes here to support the GPIO interface on ARM v6 based 208 Qualcomm MSM chips. Most of the pins on the MSM can be 209 selected for GPIO, and are controlled by this driver. 210 211config GPIO_MSM_V2 212 tristate "Qualcomm MSM GPIO v2" 213 depends on GPIOLIB && OF && ARCH_QCOM 214 help 215 Say yes here to support the GPIO interface on ARM v7 based 216 Qualcomm MSM chips. Most of the pins on the MSM can be 217 selected for GPIO, and are controlled by this driver. 218 219config GPIO_MVEBU 220 def_bool y 221 depends on PLAT_ORION 222 depends on OF 223 select GPIO_GENERIC 224 select GENERIC_IRQ_CHIP 225 226config GPIO_MXC 227 def_bool y 228 depends on ARCH_MXC 229 select GPIO_GENERIC 230 select GENERIC_IRQ_CHIP 231 232config GPIO_MXS 233 def_bool y 234 depends on ARCH_MXS 235 select GPIO_GENERIC 236 select GENERIC_IRQ_CHIP 237 238config GPIO_OCTEON 239 tristate "Cavium OCTEON GPIO" 240 depends on GPIOLIB && CAVIUM_OCTEON_SOC 241 default y 242 help 243 Say yes here to support the on-chip GPIO lines on the OCTEON 244 family of SOCs. 245 246config GPIO_PL061 247 bool "PrimeCell PL061 GPIO support" 248 depends on ARM_AMBA 249 select IRQ_DOMAIN 250 select GPIOLIB_IRQCHIP 251 help 252 Say yes here to support the PrimeCell PL061 GPIO device 253 254config GPIO_PXA 255 bool "PXA GPIO support" 256 depends on ARCH_PXA || ARCH_MMP 257 help 258 Say yes here to support the PXA GPIO device 259 260config GPIO_RCAR 261 tristate "Renesas R-Car GPIO" 262 depends on ARM 263 help 264 Say yes here to support GPIO on Renesas R-Car SoCs. 265 266config GPIO_SAMSUNG 267 bool 268 depends on PLAT_SAMSUNG 269 help 270 Legacy GPIO support. Use only for platforms without support for 271 pinctrl. 272 273config GPIO_SCH311X 274 tristate "SMSC SCH311x SuperI/O GPIO" 275 help 276 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 277 SCH3116 "Super I/O" chipsets. 278 279 To compile this driver as a module, choose M here: the module will 280 be called gpio-sch311x. 281 282config GPIO_SPEAR_SPICS 283 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 284 depends on PLAT_SPEAR 285 select GENERIC_IRQ_CHIP 286 help 287 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 288 289config GPIO_STA2X11 290 bool "STA2x11/ConneXt GPIO support" 291 depends on MFD_STA2X11 292 select GENERIC_IRQ_CHIP 293 help 294 Say yes here to support the STA2x11/ConneXt GPIO device. 295 The GPIO module has 128 GPIO pins with alternate functions. 296 297config GPIO_SYSCON 298 tristate "GPIO based on SYSCON" 299 depends on MFD_SYSCON && OF 300 help 301 Say yes here to support GPIO functionality though SYSCON driver. 302 303config GPIO_TS5500 304 tristate "TS-5500 DIO blocks and compatibles" 305 depends on TS5500 || COMPILE_TEST 306 help 307 This driver supports Digital I/O exposed by pin blocks found on some 308 Technologic Systems platforms. It includes, but is not limited to, 3 309 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 310 LCD port. 311 312config GPIO_TZ1090 313 bool "Toumaz Xenif TZ1090 GPIO support" 314 depends on SOC_TZ1090 315 select GENERIC_IRQ_CHIP 316 default y 317 help 318 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 319 320config GPIO_TZ1090_PDC 321 bool "Toumaz Xenif TZ1090 PDC GPIO support" 322 depends on SOC_TZ1090 323 default y 324 help 325 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 326 327config GPIO_XILINX 328 bool "Xilinx GPIO support" 329 depends on PPC_OF || MICROBLAZE || ARCH_ZYNQ 330 help 331 Say yes here to support the Xilinx FPGA GPIO device 332 333config GPIO_XTENSA 334 bool "Xtensa GPIO32 support" 335 depends on XTENSA 336 depends on HAVE_XTENSA_GPIO32 337 depends on !SMP 338 help 339 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 340 and EXPSTATE (output) ports 341 342config GPIO_VR41XX 343 tristate "NEC VR4100 series General-purpose I/O Uint support" 344 depends on CPU_VR41XX 345 help 346 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 347 348config GPIO_SCH 349 tristate "Intel SCH/TunnelCreek/Centerton GPIO" 350 depends on PCI && X86 351 select MFD_CORE 352 select LPC_SCH 353 help 354 Say yes here to support GPIO interface on Intel Poulsbo SCH, 355 Intel Tunnel Creek processor or Intel Centerton processor. 356 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 357 powered by the core power rail and are turned off during sleep 358 modes (S3 and higher). The remaining four GPIOs are powered by 359 the Intel SCH suspend power supply. These GPIOs remain 360 active during S3. The suspend powered GPIOs can be used to wake the 361 system from the Suspend-to-RAM state. 362 The Intel Tunnel Creek processor has 5 GPIOs powered by the 363 core power rail and 9 from suspend power supply. 364 The Intel Centerton processor has a total of 30 GPIO pins. 365 Twenty-one are powered by the core power rail and 9 from the 366 suspend power supply. 367 368config GPIO_ICH 369 tristate "Intel ICH GPIO" 370 depends on PCI && X86 371 select MFD_CORE 372 select LPC_ICH 373 help 374 Say yes here to support the GPIO functionality of a number of Intel 375 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 376 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 377 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 378 379 If unsure, say N. 380 381config GPIO_IOP 382 tristate "Intel IOP GPIO" 383 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 384 help 385 Say yes here to support the GPIO functionality of a number of Intel 386 IOP32X or IOP33X. 387 388 If unsure, say N. 389 390config GPIO_VX855 391 tristate "VIA VX855/VX875 GPIO" 392 depends on PCI 393 select MFD_CORE 394 select MFD_VX855 395 help 396 Support access to the VX855/VX875 GPIO lines through the gpio library. 397 398 This driver provides common support for accessing the device, 399 additional drivers must be enabled in order to use the 400 functionality of the device. 401 402config GPIO_GE_FPGA 403 bool "GE FPGA based GPIO" 404 depends on GE_FPGA 405 help 406 Support for common GPIO functionality provided on some GE Single Board 407 Computers. 408 409 This driver provides basic support (configure as input or output, read 410 and write pin state) for GPIO implemented in a number of GE single 411 board computers. 412 413config GPIO_LYNXPOINT 414 tristate "Intel Lynxpoint GPIO support" 415 depends on ACPI && X86 416 select IRQ_DOMAIN 417 help 418 driver for GPIO functionality on Intel Lynxpoint PCH chipset 419 Requires ACPI device enumeration code to set up a platform device. 420 421config GPIO_GRGPIO 422 tristate "Aeroflex Gaisler GRGPIO support" 423 depends on OF 424 select GPIO_GENERIC 425 select IRQ_DOMAIN 426 help 427 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 428 VHDL IP core library. 429 430config GPIO_TB10X 431 bool 432 select GENERIC_IRQ_CHIP 433 select OF_GPIO 434 435comment "I2C GPIO expanders:" 436 437config GPIO_ARIZONA 438 tristate "Wolfson Microelectronics Arizona class devices" 439 depends on MFD_ARIZONA 440 help 441 Support for GPIOs on Wolfson Arizona class devices. 442 443config GPIO_LP3943 444 tristate "TI/National Semiconductor LP3943 GPIO expander" 445 depends on MFD_LP3943 446 help 447 GPIO driver for LP3943 MFD. 448 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 449 Open drain outputs are required for this usage. 450 451config GPIO_MAX7300 452 tristate "Maxim MAX7300 GPIO expander" 453 depends on I2C 454 select GPIO_MAX730X 455 help 456 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 457 458config GPIO_MAX732X 459 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 460 depends on I2C 461 help 462 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 463 Port Expanders. Each IO port on these chips has a fixed role of 464 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 465 Input and Output (designed by 'P'). The combinations are listed 466 below: 467 468 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 469 max7322 (4I4O), max7323 (4P4O) 470 471 16 bits: max7324 (8I8O), max7325 (8P8O), 472 max7326 (4I12O), max7327 (4P12O) 473 474 Board setup code must specify the model to use, and the start 475 number for these GPIOs. 476 477config GPIO_MAX732X_IRQ 478 bool "Interrupt controller support for MAX732x" 479 depends on GPIO_MAX732X=y 480 help 481 Say yes here to enable the max732x to be used as an interrupt 482 controller. It requires the driver to be built in the kernel. 483 484config GPIO_MC9S08DZ60 485 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 486 depends on I2C=y && MACH_MX35_3DS 487 help 488 Select this to enable the MC9S08DZ60 GPIO driver 489 490config GPIO_PCA953X 491 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 492 depends on I2C 493 help 494 Say yes here to provide access to several register-oriented 495 SMBus I/O expanders, made mostly by NXP or TI. Compatible 496 models include: 497 498 4 bits: pca9536, pca9537 499 500 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 501 pca9556, pca9557, pca9574, tca6408, xra1202 502 503 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 504 tca6416 505 506 24 bits: tca6424 507 508 40 bits: pca9505, pca9698 509 510config GPIO_PCA953X_IRQ 511 bool "Interrupt controller support for PCA953x" 512 depends on GPIO_PCA953X=y 513 help 514 Say yes here to enable the pca953x to be used as an interrupt 515 controller. It requires the driver to be built in the kernel. 516 517config GPIO_PCF857X 518 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 519 depends on I2C 520 select IRQ_DOMAIN 521 help 522 Say yes here to provide access to most "quasi-bidirectional" I2C 523 GPIO expanders used for additional digital outputs or inputs. 524 Most of these parts are from NXP, though TI is a second source for 525 some of them. Compatible models include: 526 527 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 528 pca9670, pca9672, pca9674, pca9674a, 529 max7328, max7329 530 531 16 bits: pcf8575, pcf8575c, pca8575, 532 pca9671, pca9673, pca9675 533 534 Your board setup code will need to declare the expanders in 535 use, and assign numbers to the GPIOs they expose. Those GPIOs 536 can then be used from drivers and other kernel code, just like 537 other GPIOs, but only accessible from task contexts. 538 539 This driver provides an in-kernel interface to those GPIOs using 540 platform-neutral GPIO calls. 541 542config GPIO_RC5T583 543 bool "RICOH RC5T583 GPIO" 544 depends on MFD_RC5T583 545 help 546 Select this option to enable GPIO driver for the Ricoh RC5T583 547 chip family. 548 This driver provides the support for driving/reading the gpio pins 549 of RC5T583 device through standard gpio library. 550 551config GPIO_SX150X 552 bool "Semtech SX150x I2C GPIO expander" 553 depends on I2C=y 554 default n 555 help 556 Say yes here to provide support for Semtech SX150-series I2C 557 GPIO expanders. Compatible models include: 558 559 8 bits: sx1508q 560 16 bits: sx1509q 561 562config GPIO_STMPE 563 bool "STMPE GPIOs" 564 depends on MFD_STMPE 565 help 566 This enables support for the GPIOs found on the STMPE I/O 567 Expanders. 568 569config GPIO_STP_XWAY 570 bool "XWAY STP GPIOs" 571 depends on SOC_XWAY 572 help 573 This enables support for the Serial To Parallel (STP) unit found on 574 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 575 that can be up to 24 bit. This peripheral is aimed at driving leds. 576 Some of the gpios/leds can be auto updated by the soc with dsl and 577 phy status. 578 579config GPIO_TC3589X 580 bool "TC3589X GPIOs" 581 depends on MFD_TC3589X 582 help 583 This enables support for the GPIOs found on the TC3589X 584 I/O Expander. 585 586config GPIO_TPS65912 587 tristate "TI TPS65912 GPIO" 588 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 589 help 590 This driver supports TPS65912 gpio chip 591 592config GPIO_TWL4030 593 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 594 depends on TWL4030_CORE 595 help 596 Say yes here to access the GPIO signals of various multi-function 597 power management chips from Texas Instruments. 598 599config GPIO_TWL6040 600 tristate "TWL6040 GPO" 601 depends on TWL6040_CORE 602 help 603 Say yes here to access the GPO signals of twl6040 604 audio chip from Texas Instruments. 605 606config GPIO_WM831X 607 tristate "WM831x GPIOs" 608 depends on MFD_WM831X 609 help 610 Say yes here to access the GPIO signals of WM831x power management 611 chips from Wolfson Microelectronics. 612 613config GPIO_WM8350 614 tristate "WM8350 GPIOs" 615 depends on MFD_WM8350 616 help 617 Say yes here to access the GPIO signals of WM8350 power management 618 chips from Wolfson Microelectronics. 619 620config GPIO_WM8994 621 tristate "WM8994 GPIOs" 622 depends on MFD_WM8994 623 help 624 Say yes here to access the GPIO signals of WM8994 audio hub 625 CODECs from Wolfson Microelectronics. 626 627config GPIO_ADP5520 628 tristate "GPIO Support for ADP5520 PMIC" 629 depends on PMIC_ADP5520 630 help 631 This option enables support for on-chip GPIO found 632 on Analog Devices ADP5520 PMICs. 633 634config GPIO_ADP5588 635 tristate "ADP5588 I2C GPIO expander" 636 depends on I2C 637 help 638 This option enables support for 18 GPIOs found 639 on Analog Devices ADP5588 GPIO Expanders. 640 641config GPIO_ADP5588_IRQ 642 bool "Interrupt controller support for ADP5588" 643 depends on GPIO_ADP5588=y 644 help 645 Say yes here to enable the adp5588 to be used as an interrupt 646 controller. It requires the driver to be built in the kernel. 647 648config GPIO_ADNP 649 tristate "Avionic Design N-bit GPIO expander" 650 depends on I2C && OF_GPIO 651 help 652 This option enables support for N GPIOs found on Avionic Design 653 I2C GPIO expanders. The register space will be extended by powers 654 of two, so the controller will need to accommodate for that. For 655 example: if a controller provides 48 pins, 6 registers will be 656 enough to represent all pins, but the driver will assume a 657 register layout for 64 pins (8 registers). 658 659comment "PCI GPIO expanders:" 660 661config GPIO_CS5535 662 tristate "AMD CS5535/CS5536 GPIO support" 663 depends on MFD_CS5535 664 help 665 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 666 can be used for quite a number of things. The CS5535/6 is found on 667 AMD Geode and Lemote Yeeloong devices. 668 669 If unsure, say N. 670 671config GPIO_BT8XX 672 tristate "BT8XX GPIO abuser" 673 depends on PCI && VIDEO_BT848=n 674 help 675 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 676 as a cheap PCI GPIO card. 677 678 This chip can be found on Miro, Hauppauge and STB TV-cards. 679 680 The card needs to be physically altered for using it as a 681 GPIO card. For more information on how to build a GPIO card 682 from a BT8xx TV card, see the documentation file at 683 Documentation/bt8xxgpio.txt 684 685 If unsure, say N. 686 687config GPIO_AMD8111 688 tristate "AMD 8111 GPIO driver" 689 depends on PCI 690 help 691 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 692 693 Note, that usually system firmware/ACPI handles GPIO pins on their 694 own and users might easily break their systems with uncarefull usage 695 of this driver! 696 697 If unsure, say N 698 699config GPIO_INTEL_MID 700 bool "Intel Mid GPIO support" 701 depends on PCI && X86 702 select IRQ_DOMAIN 703 help 704 Say Y here to support Intel Mid GPIO. 705 706config GPIO_PCH 707 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 708 depends on PCI && X86 709 select GENERIC_IRQ_CHIP 710 help 711 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 712 which is an IOH(Input/Output Hub) for x86 embedded processor. 713 This driver can access PCH GPIO device. 714 715 This driver also can be used for LAPIS Semiconductor IOH(Input/ 716 Output Hub), ML7223 and ML7831. 717 ML7223 IOH is for MP(Media Phone) use. 718 ML7831 IOH is for general purpose use. 719 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 720 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 721 722config GPIO_ML_IOH 723 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 724 depends on PCI 725 select GENERIC_IRQ_CHIP 726 help 727 ML7213 is companion chip for Intel Atom E6xx series. 728 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 729 Hub) which is for IVI(In-Vehicle Infotainment) use. 730 This driver can access the IOH's GPIO device. 731 732config GPIO_SODAVILLE 733 bool "Intel Sodaville GPIO support" 734 depends on X86 && PCI && OF 735 select GPIO_GENERIC 736 select GENERIC_IRQ_CHIP 737 help 738 Say Y here to support Intel Sodaville GPIO. 739 740config GPIO_TIMBERDALE 741 bool "Support for timberdale GPIO IP" 742 depends on MFD_TIMBERDALE && HAS_IOMEM 743 ---help--- 744 Add support for the GPIO IP in the timberdale FPGA. 745 746config GPIO_RDC321X 747 tristate "RDC R-321x GPIO support" 748 depends on PCI 749 select MFD_CORE 750 select MFD_RDC321X 751 help 752 Support for the RDC R321x SoC GPIOs over southbridge 753 PCI configuration space. 754 755comment "SPI GPIO expanders:" 756 757config GPIO_MAX7301 758 tristate "Maxim MAX7301 GPIO expander" 759 depends on SPI_MASTER 760 select GPIO_MAX730X 761 help 762 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 763 764config GPIO_MCP23S08 765 tristate "Microchip MCP23xxx I/O expander" 766 depends on OF_GPIO 767 depends on (SPI_MASTER && !I2C) || I2C 768 help 769 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 770 I/O expanders. 771 This provides a GPIO interface supporting inputs and outputs. 772 The I2C versions of the chips can be used as interrupt-controller. 773 774config GPIO_MC33880 775 tristate "Freescale MC33880 high-side/low-side switch" 776 depends on SPI_MASTER 777 help 778 SPI driver for Freescale MC33880 high-side/low-side switch. 779 This provides GPIO interface supporting inputs and outputs. 780 781config GPIO_74X164 782 tristate "74x164 serial-in/parallel-out 8-bits shift register" 783 depends on SPI_MASTER && OF 784 help 785 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 786 shift registers. This driver can be used to provide access 787 to more gpio outputs. 788 789comment "AC97 GPIO expanders:" 790 791config GPIO_UCB1400 792 tristate "Philips UCB1400 GPIO" 793 depends on UCB1400_CORE 794 help 795 This enables support for the Philips UCB1400 GPIO pins. 796 The UCB1400 is an AC97 audio codec. 797 798comment "LPC GPIO expanders:" 799 800config GPIO_KEMPLD 801 tristate "Kontron ETX / COMexpress GPIO" 802 depends on MFD_KEMPLD 803 help 804 This enables support for the PLD GPIO interface on some Kontron ETX 805 and COMexpress (ETXexpress) modules. 806 807 This driver can also be built as a module. If so, the module will be 808 called gpio-kempld. 809 810comment "MODULbus GPIO expanders:" 811 812config GPIO_JANZ_TTL 813 tristate "Janz VMOD-TTL Digital IO Module" 814 depends on MFD_JANZ_CMODIO 815 help 816 This enables support for the Janz VMOD-TTL Digital IO module. 817 This driver provides support for driving the pins in output 818 mode only. Input mode is not supported. 819 820config GPIO_PALMAS 821 bool "TI PALMAS series PMICs GPIO" 822 depends on MFD_PALMAS 823 help 824 Select this option to enable GPIO driver for the TI PALMAS 825 series chip family. 826 827config GPIO_TPS6586X 828 bool "TPS6586X GPIO" 829 depends on MFD_TPS6586X 830 help 831 Select this option to enable GPIO driver for the TPS6586X 832 chip family. 833 834config GPIO_TPS65910 835 bool "TPS65910 GPIO" 836 depends on MFD_TPS65910 837 help 838 Select this option to enable GPIO driver for the TPS65910 839 chip family. 840 841config GPIO_MSIC 842 bool "Intel MSIC mixed signal gpio support" 843 depends on MFD_INTEL_MSIC 844 help 845 Enable support for GPIO on intel MSIC controllers found in 846 intel MID devices 847 848config GPIO_BCM_KONA 849 bool "Broadcom Kona GPIO" 850 depends on OF_GPIO 851 help 852 Turn on GPIO support for Broadcom "Kona" chips. 853 854comment "USB GPIO expanders:" 855 856config GPIO_VIPERBOARD 857 tristate "Viperboard GPIO a & b support" 858 depends on MFD_VIPERBOARD && USB 859 help 860 Say yes here to access the GPIO signals of Nano River 861 Technologies Viperboard. There are two GPIO chips on the 862 board: gpioa and gpiob. 863 See viperboard API specification and Nano 864 River Tech's viperboard.h for detailed meaning 865 of the module parameters. 866 867endif 868