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 select GPIOLIB_IRQCHIP 583 help 584 This enables support for the GPIOs found on the TC3589X 585 I/O Expander. 586 587config GPIO_TPS65912 588 tristate "TI TPS65912 GPIO" 589 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 590 help 591 This driver supports TPS65912 gpio chip 592 593config GPIO_TWL4030 594 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 595 depends on TWL4030_CORE 596 help 597 Say yes here to access the GPIO signals of various multi-function 598 power management chips from Texas Instruments. 599 600config GPIO_TWL6040 601 tristate "TWL6040 GPO" 602 depends on TWL6040_CORE 603 help 604 Say yes here to access the GPO signals of twl6040 605 audio chip from Texas Instruments. 606 607config GPIO_WM831X 608 tristate "WM831x GPIOs" 609 depends on MFD_WM831X 610 help 611 Say yes here to access the GPIO signals of WM831x power management 612 chips from Wolfson Microelectronics. 613 614config GPIO_WM8350 615 tristate "WM8350 GPIOs" 616 depends on MFD_WM8350 617 help 618 Say yes here to access the GPIO signals of WM8350 power management 619 chips from Wolfson Microelectronics. 620 621config GPIO_WM8994 622 tristate "WM8994 GPIOs" 623 depends on MFD_WM8994 624 help 625 Say yes here to access the GPIO signals of WM8994 audio hub 626 CODECs from Wolfson Microelectronics. 627 628config GPIO_ADP5520 629 tristate "GPIO Support for ADP5520 PMIC" 630 depends on PMIC_ADP5520 631 help 632 This option enables support for on-chip GPIO found 633 on Analog Devices ADP5520 PMICs. 634 635config GPIO_ADP5588 636 tristate "ADP5588 I2C GPIO expander" 637 depends on I2C 638 help 639 This option enables support for 18 GPIOs found 640 on Analog Devices ADP5588 GPIO Expanders. 641 642config GPIO_ADP5588_IRQ 643 bool "Interrupt controller support for ADP5588" 644 depends on GPIO_ADP5588=y 645 help 646 Say yes here to enable the adp5588 to be used as an interrupt 647 controller. It requires the driver to be built in the kernel. 648 649config GPIO_ADNP 650 tristate "Avionic Design N-bit GPIO expander" 651 depends on I2C && OF_GPIO 652 help 653 This option enables support for N GPIOs found on Avionic Design 654 I2C GPIO expanders. The register space will be extended by powers 655 of two, so the controller will need to accommodate for that. For 656 example: if a controller provides 48 pins, 6 registers will be 657 enough to represent all pins, but the driver will assume a 658 register layout for 64 pins (8 registers). 659 660comment "PCI GPIO expanders:" 661 662config GPIO_CS5535 663 tristate "AMD CS5535/CS5536 GPIO support" 664 depends on MFD_CS5535 665 help 666 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 667 can be used for quite a number of things. The CS5535/6 is found on 668 AMD Geode and Lemote Yeeloong devices. 669 670 If unsure, say N. 671 672config GPIO_BT8XX 673 tristate "BT8XX GPIO abuser" 674 depends on PCI && VIDEO_BT848=n 675 help 676 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 677 as a cheap PCI GPIO card. 678 679 This chip can be found on Miro, Hauppauge and STB TV-cards. 680 681 The card needs to be physically altered for using it as a 682 GPIO card. For more information on how to build a GPIO card 683 from a BT8xx TV card, see the documentation file at 684 Documentation/bt8xxgpio.txt 685 686 If unsure, say N. 687 688config GPIO_AMD8111 689 tristate "AMD 8111 GPIO driver" 690 depends on PCI 691 help 692 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 693 694 Note, that usually system firmware/ACPI handles GPIO pins on their 695 own and users might easily break their systems with uncarefull usage 696 of this driver! 697 698 If unsure, say N 699 700config GPIO_INTEL_MID 701 bool "Intel Mid GPIO support" 702 depends on PCI && X86 703 select IRQ_DOMAIN 704 help 705 Say Y here to support Intel Mid GPIO. 706 707config GPIO_PCH 708 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 709 depends on PCI && X86 710 select GENERIC_IRQ_CHIP 711 help 712 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 713 which is an IOH(Input/Output Hub) for x86 embedded processor. 714 This driver can access PCH GPIO device. 715 716 This driver also can be used for LAPIS Semiconductor IOH(Input/ 717 Output Hub), ML7223 and ML7831. 718 ML7223 IOH is for MP(Media Phone) use. 719 ML7831 IOH is for general purpose use. 720 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 721 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 722 723config GPIO_ML_IOH 724 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 725 depends on PCI 726 select GENERIC_IRQ_CHIP 727 help 728 ML7213 is companion chip for Intel Atom E6xx series. 729 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 730 Hub) which is for IVI(In-Vehicle Infotainment) use. 731 This driver can access the IOH's GPIO device. 732 733config GPIO_SODAVILLE 734 bool "Intel Sodaville GPIO support" 735 depends on X86 && PCI && OF 736 select GPIO_GENERIC 737 select GENERIC_IRQ_CHIP 738 help 739 Say Y here to support Intel Sodaville GPIO. 740 741config GPIO_TIMBERDALE 742 bool "Support for timberdale GPIO IP" 743 depends on MFD_TIMBERDALE 744 ---help--- 745 Add support for the GPIO IP in the timberdale FPGA. 746 747config GPIO_RDC321X 748 tristate "RDC R-321x GPIO support" 749 depends on PCI 750 select MFD_CORE 751 select MFD_RDC321X 752 help 753 Support for the RDC R321x SoC GPIOs over southbridge 754 PCI configuration space. 755 756comment "SPI GPIO expanders:" 757 758config GPIO_MAX7301 759 tristate "Maxim MAX7301 GPIO expander" 760 depends on SPI_MASTER 761 select GPIO_MAX730X 762 help 763 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 764 765config GPIO_MCP23S08 766 tristate "Microchip MCP23xxx I/O expander" 767 depends on OF_GPIO 768 depends on (SPI_MASTER && !I2C) || I2C 769 help 770 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 771 I/O expanders. 772 This provides a GPIO interface supporting inputs and outputs. 773 The I2C versions of the chips can be used as interrupt-controller. 774 775config GPIO_MC33880 776 tristate "Freescale MC33880 high-side/low-side switch" 777 depends on SPI_MASTER 778 help 779 SPI driver for Freescale MC33880 high-side/low-side switch. 780 This provides GPIO interface supporting inputs and outputs. 781 782config GPIO_74X164 783 tristate "74x164 serial-in/parallel-out 8-bits shift register" 784 depends on SPI_MASTER && OF 785 help 786 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 787 shift registers. This driver can be used to provide access 788 to more gpio outputs. 789 790comment "AC97 GPIO expanders:" 791 792config GPIO_UCB1400 793 tristate "Philips UCB1400 GPIO" 794 depends on UCB1400_CORE 795 help 796 This enables support for the Philips UCB1400 GPIO pins. 797 The UCB1400 is an AC97 audio codec. 798 799comment "LPC GPIO expanders:" 800 801config GPIO_KEMPLD 802 tristate "Kontron ETX / COMexpress GPIO" 803 depends on MFD_KEMPLD 804 help 805 This enables support for the PLD GPIO interface on some Kontron ETX 806 and COMexpress (ETXexpress) modules. 807 808 This driver can also be built as a module. If so, the module will be 809 called gpio-kempld. 810 811comment "MODULbus GPIO expanders:" 812 813config GPIO_JANZ_TTL 814 tristate "Janz VMOD-TTL Digital IO Module" 815 depends on MFD_JANZ_CMODIO 816 help 817 This enables support for the Janz VMOD-TTL Digital IO module. 818 This driver provides support for driving the pins in output 819 mode only. Input mode is not supported. 820 821config GPIO_PALMAS 822 bool "TI PALMAS series PMICs GPIO" 823 depends on MFD_PALMAS 824 help 825 Select this option to enable GPIO driver for the TI PALMAS 826 series chip family. 827 828config GPIO_TPS6586X 829 bool "TPS6586X GPIO" 830 depends on MFD_TPS6586X 831 help 832 Select this option to enable GPIO driver for the TPS6586X 833 chip family. 834 835config GPIO_TPS65910 836 bool "TPS65910 GPIO" 837 depends on MFD_TPS65910 838 help 839 Select this option to enable GPIO driver for the TPS65910 840 chip family. 841 842config GPIO_MSIC 843 bool "Intel MSIC mixed signal gpio support" 844 depends on MFD_INTEL_MSIC 845 help 846 Enable support for GPIO on intel MSIC controllers found in 847 intel MID devices 848 849config GPIO_BCM_KONA 850 bool "Broadcom Kona GPIO" 851 depends on OF_GPIO 852 help 853 Turn on GPIO support for Broadcom "Kona" chips. 854 855comment "USB GPIO expanders:" 856 857config GPIO_VIPERBOARD 858 tristate "Viperboard GPIO a & b support" 859 depends on MFD_VIPERBOARD && USB 860 help 861 Say yes here to access the GPIO signals of Nano River 862 Technologies Viperboard. There are two GPIO chips on the 863 board: gpioa and gpiob. 864 See viperboard API specification and Nano 865 River Tech's viperboard.h for detailed meaning 866 of the module parameters. 867 868endif 869