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 select IRQ_DOMAIN 60 bool 61 62config DEBUG_GPIO 63 bool "Debug GPIO calls" 64 depends on DEBUG_KERNEL 65 help 66 Say Y here to add some extra checks and diagnostics to GPIO calls. 67 These checks help ensure that GPIOs have been properly initialized 68 before they are used, and that sleeping calls are not made from 69 non-sleeping contexts. They can make bitbanged serial protocols 70 slower. The diagnostics help catch the type of setup errors 71 that are most common when setting up new platforms or boards. 72 73config GPIO_SYSFS 74 bool "/sys/class/gpio/... (sysfs interface)" 75 depends on SYSFS 76 help 77 Say Y here to add a sysfs interface for GPIOs. 78 79 This is mostly useful to work around omissions in a system's 80 kernel support. Those are common in custom and semicustom 81 hardware assembled using standard kernels with a minimum of 82 custom patches. In those cases, userspace code may import 83 a given GPIO from the kernel, if no kernel driver requested it. 84 85 Kernel drivers may also request that a particular GPIO be 86 exported to userspace; this can be useful when debugging. 87 88config GPIO_GENERIC 89 tristate 90 91# put drivers in the right section, in alphabetical order 92 93# This symbol is selected by both I2C and SPI expanders 94config GPIO_MAX730X 95 tristate 96 97menu "Memory mapped GPIO drivers" 98 99config GPIO_74XX_MMIO 100 tristate "GPIO driver for 74xx-ICs with MMIO access" 101 depends on OF_GPIO 102 select GPIO_GENERIC 103 help 104 Say yes here to support GPIO functionality for 74xx-compatible ICs 105 with MMIO access. Compatible models include: 106 1 bit: 741G125 (Input), 741G74 (Output) 107 2 bits: 742G125 (Input), 7474 (Output) 108 4 bits: 74125 (Input), 74175 (Output) 109 6 bits: 74365 (Input), 74174 (Output) 110 8 bits: 74244 (Input), 74273 (Output) 111 16 bits: 741624 (Input), 7416374 (Output) 112 113config GPIO_ALTERA 114 tristate "Altera GPIO" 115 depends on OF_GPIO 116 select GPIO_GENERIC 117 select GPIOLIB_IRQCHIP 118 help 119 Say Y or M here to build support for the Altera PIO device. 120 121 If driver is built as a module it will be called gpio-altera. 122 123config GPIO_BCM_KONA 124 bool "Broadcom Kona GPIO" 125 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 126 help 127 Turn on GPIO support for Broadcom "Kona" chips. 128 129config GPIO_CLPS711X 130 tristate "CLPS711X GPIO support" 131 depends on ARCH_CLPS711X || COMPILE_TEST 132 select GPIO_GENERIC 133 help 134 Say yes here to support GPIO on CLPS711X SoCs. 135 136config GPIO_DAVINCI 137 bool "TI Davinci/Keystone GPIO support" 138 default y if ARCH_DAVINCI 139 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 140 help 141 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 142 143config GPIO_DWAPB 144 tristate "Synopsys DesignWare APB GPIO driver" 145 select GPIO_GENERIC 146 select GENERIC_IRQ_CHIP 147 help 148 Say Y or M here to build support for the Synopsys DesignWare APB 149 GPIO block. 150 151config GPIO_EM 152 tristate "Emma Mobile GPIO" 153 depends on ARM && OF_GPIO 154 help 155 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 156 157config GPIO_EP93XX 158 def_bool y 159 depends on ARCH_EP93XX 160 select GPIO_GENERIC 161 162config GPIO_F7188X 163 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 164 depends on X86 165 help 166 This option enables support for GPIOs found on Fintek Super-I/O 167 chips F71869, F71869A, F71882FG and F71889F. 168 169 To compile this driver as a module, choose M here: the module will 170 be called f7188x-gpio. 171 172config GPIO_GE_FPGA 173 bool "GE FPGA based GPIO" 174 depends on GE_FPGA 175 select GPIO_GENERIC 176 help 177 Support for common GPIO functionality provided on some GE Single Board 178 Computers. 179 180 This driver provides basic support (configure as input or output, read 181 and write pin state) for GPIO implemented in a number of GE single 182 board computers. 183 184config GPIO_GENERIC_PLATFORM 185 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 186 select GPIO_GENERIC 187 help 188 Say yes here to support basic platform_device memory-mapped GPIO controllers. 189 190config GPIO_GRGPIO 191 tristate "Aeroflex Gaisler GRGPIO support" 192 depends on OF 193 select GPIO_GENERIC 194 select IRQ_DOMAIN 195 help 196 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 197 VHDL IP core library. 198 199config GPIO_ICH 200 tristate "Intel ICH GPIO" 201 depends on PCI && X86 202 select MFD_CORE 203 select LPC_ICH 204 help 205 Say yes here to support the GPIO functionality of a number of Intel 206 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 207 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 208 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 209 210 If unsure, say N. 211 212config GPIO_IOP 213 tristate "Intel IOP GPIO" 214 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 215 help 216 Say yes here to support the GPIO functionality of a number of Intel 217 IOP32X or IOP33X. 218 219 If unsure, say N. 220 221config GPIO_IT8761E 222 tristate "IT8761E GPIO support" 223 depends on X86 # unconditional access to IO space. 224 help 225 Say yes here to support GPIO functionality of IT8761E super I/O chip. 226 227config GPIO_LOONGSON 228 bool "Loongson-2/3 GPIO support" 229 depends on CPU_LOONGSON2 || CPU_LOONGSON3 230 help 231 driver for GPIO functionality on Loongson-2F/3A/3B processors. 232 233config GPIO_LYNXPOINT 234 tristate "Intel Lynxpoint GPIO support" 235 depends on ACPI && X86 236 select GPIOLIB_IRQCHIP 237 help 238 driver for GPIO functionality on Intel Lynxpoint PCH chipset 239 Requires ACPI device enumeration code to set up a platform device. 240 241config GPIO_MB86S7X 242 bool "GPIO support for Fujitsu MB86S7x Platforms" 243 depends on ARCH_MB86S7X 244 help 245 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 246 247config GPIO_MM_LANTIQ 248 bool "Lantiq Memory mapped GPIOs" 249 depends on LANTIQ && SOC_XWAY 250 help 251 This enables support for memory mapped GPIOs on the External Bus Unit 252 (EBU) found on Lantiq SoCs. The gpios are output only as they are 253 created by attaching a 16bit latch to the bus. 254 255config GPIO_MOXART 256 bool "MOXART GPIO support" 257 depends on ARCH_MOXART 258 select GPIO_GENERIC 259 help 260 Select this option to enable GPIO driver for 261 MOXA ART SoC devices. 262 263config GPIO_MPC5200 264 def_bool y 265 depends on PPC_MPC52xx 266 267config GPIO_MPC8XXX 268 bool "MPC512x/MPC8xxx GPIO support" 269 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 270 FSL_SOC_BOOKE || PPC_86xx 271 help 272 Say Y here if you're going to use hardware that connects to the 273 MPC512x/831x/834x/837x/8572/8610 GPIOs. 274 275config GPIO_MSM_V2 276 tristate "Qualcomm MSM GPIO v2" 277 depends on GPIOLIB && OF && ARCH_QCOM 278 help 279 Say yes here to support the GPIO interface on ARM v7 based 280 Qualcomm MSM chips. Most of the pins on the MSM can be 281 selected for GPIO, and are controlled by this driver. 282 283config GPIO_MVEBU 284 def_bool y 285 depends on PLAT_ORION 286 depends on OF 287 select GPIO_GENERIC 288 select GENERIC_IRQ_CHIP 289 290config GPIO_MXC 291 def_bool y 292 depends on ARCH_MXC 293 select GPIO_GENERIC 294 select GENERIC_IRQ_CHIP 295 296config GPIO_MXS 297 def_bool y 298 depends on ARCH_MXS 299 select GPIO_GENERIC 300 select GENERIC_IRQ_CHIP 301 302config GPIO_OCTEON 303 tristate "Cavium OCTEON GPIO" 304 depends on GPIOLIB && CAVIUM_OCTEON_SOC 305 default y 306 help 307 Say yes here to support the on-chip GPIO lines on the OCTEON 308 family of SOCs. 309 310config GPIO_OMAP 311 bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS 312 default y if ARCH_OMAP 313 depends on ARM 314 select GENERIC_IRQ_CHIP 315 select GPIOLIB_IRQCHIP 316 help 317 Say yes here to enable GPIO support for TI OMAP SoCs. 318 319config GPIO_PL061 320 bool "PrimeCell PL061 GPIO support" 321 depends on ARM_AMBA 322 select IRQ_DOMAIN 323 select GPIOLIB_IRQCHIP 324 help 325 Say yes here to support the PrimeCell PL061 GPIO device 326 327config GPIO_PXA 328 bool "PXA GPIO support" 329 depends on ARCH_PXA || ARCH_MMP 330 help 331 Say yes here to support the PXA GPIO device 332 333config GPIO_RCAR 334 tristate "Renesas R-Car GPIO" 335 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST) 336 select GPIOLIB_IRQCHIP 337 help 338 Say yes here to support GPIO on Renesas R-Car SoCs. 339 340config GPIO_SAMSUNG 341 bool 342 depends on PLAT_SAMSUNG 343 help 344 Legacy GPIO support. Use only for platforms without support for 345 pinctrl. 346 347config GPIO_SCH 348 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 349 depends on PCI && X86 350 select MFD_CORE 351 select LPC_SCH 352 help 353 Say yes here to support GPIO interface on Intel Poulsbo SCH, 354 Intel Tunnel Creek processor, Intel Centerton processor or 355 Intel Quark X1000 SoC. 356 357 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 358 powered by the core power rail and are turned off during sleep 359 modes (S3 and higher). The remaining four GPIOs are powered by 360 the Intel SCH suspend power supply. These GPIOs remain 361 active during S3. The suspend powered GPIOs can be used to wake the 362 system from the Suspend-to-RAM state. 363 364 The Intel Tunnel Creek processor has 5 GPIOs powered by the 365 core power rail and 9 from suspend power supply. 366 367 The Intel Centerton processor has a total of 30 GPIO pins. 368 Twenty-one are powered by the core power rail and 9 from the 369 suspend power supply. 370 371 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 372 power well and 6 from the suspend power well. 373 374config GPIO_SCH311X 375 tristate "SMSC SCH311x SuperI/O GPIO" 376 help 377 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 378 SCH3116 "Super I/O" chipsets. 379 380 To compile this driver as a module, choose M here: the module will 381 be called gpio-sch311x. 382 383config GPIO_SPEAR_SPICS 384 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 385 depends on PLAT_SPEAR 386 select GENERIC_IRQ_CHIP 387 help 388 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 389 390config GPIO_STA2X11 391 bool "STA2x11/ConneXt GPIO support" 392 depends on MFD_STA2X11 393 select GENERIC_IRQ_CHIP 394 help 395 Say yes here to support the STA2x11/ConneXt GPIO device. 396 The GPIO module has 128 GPIO pins with alternate functions. 397 398config GPIO_STP_XWAY 399 bool "XWAY STP GPIOs" 400 depends on SOC_XWAY 401 help 402 This enables support for the Serial To Parallel (STP) unit found on 403 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 404 that can be up to 24 bit. This peripheral is aimed at driving leds. 405 Some of the gpios/leds can be auto updated by the soc with dsl and 406 phy status. 407 408config GPIO_SYSCON 409 tristate "GPIO based on SYSCON" 410 depends on MFD_SYSCON && OF 411 help 412 Say yes here to support GPIO functionality though SYSCON driver. 413 414config GPIO_TB10X 415 bool 416 select GENERIC_IRQ_CHIP 417 select OF_GPIO 418 419config GPIO_TS5500 420 tristate "TS-5500 DIO blocks and compatibles" 421 depends on TS5500 || COMPILE_TEST 422 help 423 This driver supports Digital I/O exposed by pin blocks found on some 424 Technologic Systems platforms. It includes, but is not limited to, 3 425 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 426 LCD port. 427 428config GPIO_TZ1090 429 bool "Toumaz Xenif TZ1090 GPIO support" 430 depends on SOC_TZ1090 431 select GENERIC_IRQ_CHIP 432 default y 433 help 434 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 435 436config GPIO_TZ1090_PDC 437 bool "Toumaz Xenif TZ1090 PDC GPIO support" 438 depends on SOC_TZ1090 439 default y 440 help 441 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 442 443config GPIO_VF610 444 def_bool y 445 depends on ARCH_MXC && SOC_VF610 446 select GPIOLIB_IRQCHIP 447 help 448 Say yes here to support Vybrid vf610 GPIOs. 449 450config GPIO_VR41XX 451 tristate "NEC VR4100 series General-purpose I/O Uint support" 452 depends on CPU_VR41XX 453 help 454 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 455 456config GPIO_VX855 457 tristate "VIA VX855/VX875 GPIO" 458 depends on PCI 459 select MFD_CORE 460 select MFD_VX855 461 help 462 Support access to the VX855/VX875 GPIO lines through the gpio library. 463 464 This driver provides common support for accessing the device, 465 additional drivers must be enabled in order to use the 466 functionality of the device. 467 468config GPIO_XGENE 469 bool "APM X-Gene GPIO controller support" 470 depends on ARM64 && OF_GPIO 471 help 472 This driver is to support the GPIO block within the APM X-Gene SoC 473 platform's generic flash controller. The GPIO pins are muxed with 474 the generic flash controller's address and data pins. Say yes 475 here to enable the GFC GPIO functionality. 476 477config GPIO_XGENE_SB 478 tristate "APM X-Gene GPIO standby controller support" 479 depends on ARCH_XGENE && OF_GPIO 480 select GPIO_GENERIC 481 help 482 This driver supports the GPIO block within the APM X-Gene 483 Standby Domain. Say yes here to enable the GPIO functionality. 484 485config GPIO_XILINX 486 tristate "Xilinx GPIO support" 487 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 488 help 489 Say yes here to support the Xilinx FPGA GPIO device 490 491config GPIO_XTENSA 492 bool "Xtensa GPIO32 support" 493 depends on XTENSA 494 depends on HAVE_XTENSA_GPIO32 495 depends on !SMP 496 help 497 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 498 and EXPSTATE (output) ports 499 500config GPIO_ZEVIO 501 bool "LSI ZEVIO SoC memory mapped GPIOs" 502 depends on ARM && OF_GPIO 503 help 504 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 505 506config GPIO_ZYNQ 507 tristate "Xilinx Zynq GPIO support" 508 depends on ARCH_ZYNQ 509 select GPIOLIB_IRQCHIP 510 help 511 Say yes here to support Xilinx Zynq GPIO controller. 512 513endmenu 514 515menu "I2C GPIO expanders" 516 depends on I2C 517 518config GPIO_ADP5588 519 tristate "ADP5588 I2C GPIO expander" 520 depends on I2C 521 help 522 This option enables support for 18 GPIOs found 523 on Analog Devices ADP5588 GPIO Expanders. 524 525config GPIO_ADP5588_IRQ 526 bool "Interrupt controller support for ADP5588" 527 depends on GPIO_ADP5588=y 528 help 529 Say yes here to enable the adp5588 to be used as an interrupt 530 controller. It requires the driver to be built in the kernel. 531 532config GPIO_ADNP 533 tristate "Avionic Design N-bit GPIO expander" 534 depends on I2C && OF_GPIO 535 select GPIOLIB_IRQCHIP 536 help 537 This option enables support for N GPIOs found on Avionic Design 538 I2C GPIO expanders. The register space will be extended by powers 539 of two, so the controller will need to accommodate for that. For 540 example: if a controller provides 48 pins, 6 registers will be 541 enough to represent all pins, but the driver will assume a 542 register layout for 64 pins (8 registers). 543 544config GPIO_MAX7300 545 tristate "Maxim MAX7300 GPIO expander" 546 depends on I2C 547 select GPIO_MAX730X 548 help 549 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 550 551config GPIO_MAX732X 552 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 553 depends on I2C 554 help 555 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 556 Port Expanders. Each IO port on these chips has a fixed role of 557 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 558 Input and Output (designed by 'P'). The combinations are listed 559 below: 560 561 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 562 max7322 (4I4O), max7323 (4P4O) 563 564 16 bits: max7324 (8I8O), max7325 (8P8O), 565 max7326 (4I12O), max7327 (4P12O) 566 567 Board setup code must specify the model to use, and the start 568 number for these GPIOs. 569 570config GPIO_MAX732X_IRQ 571 bool "Interrupt controller support for MAX732x" 572 depends on GPIO_MAX732X=y 573 select GPIOLIB_IRQCHIP 574 help 575 Say yes here to enable the max732x to be used as an interrupt 576 controller. It requires the driver to be built in the kernel. 577 578config GPIO_MC9S08DZ60 579 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 580 depends on I2C=y && MACH_MX35_3DS 581 help 582 Select this to enable the MC9S08DZ60 GPIO driver 583 584config GPIO_PCA953X 585 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 586 depends on I2C 587 help 588 Say yes here to provide access to several register-oriented 589 SMBus I/O expanders, made mostly by NXP or TI. Compatible 590 models include: 591 592 4 bits: pca9536, pca9537 593 594 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 595 pca9556, pca9557, pca9574, tca6408, xra1202 596 597 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 598 tca6416 599 600 24 bits: tca6424 601 602 40 bits: pca9505, pca9698 603 604config GPIO_PCA953X_IRQ 605 bool "Interrupt controller support for PCA953x" 606 depends on GPIO_PCA953X=y 607 select GPIOLIB_IRQCHIP 608 help 609 Say yes here to enable the pca953x to be used as an interrupt 610 controller. It requires the driver to be built in the kernel. 611 612config GPIO_PCF857X 613 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 614 depends on I2C 615 select GPIOLIB_IRQCHIP 616 select IRQ_DOMAIN 617 help 618 Say yes here to provide access to most "quasi-bidirectional" I2C 619 GPIO expanders used for additional digital outputs or inputs. 620 Most of these parts are from NXP, though TI is a second source for 621 some of them. Compatible models include: 622 623 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 624 pca9670, pca9672, pca9674, pca9674a, 625 max7328, max7329 626 627 16 bits: pcf8575, pcf8575c, pca8575, 628 pca9671, pca9673, pca9675 629 630 Your board setup code will need to declare the expanders in 631 use, and assign numbers to the GPIOs they expose. Those GPIOs 632 can then be used from drivers and other kernel code, just like 633 other GPIOs, but only accessible from task contexts. 634 635 This driver provides an in-kernel interface to those GPIOs using 636 platform-neutral GPIO calls. 637 638config GPIO_SX150X 639 bool "Semtech SX150x I2C GPIO expander" 640 depends on I2C=y 641 select GPIOLIB_IRQCHIP 642 default n 643 help 644 Say yes here to provide support for Semtech SX150-series I2C 645 GPIO expanders. Compatible models include: 646 647 8 bits: sx1508q 648 16 bits: sx1509q 649 650endmenu 651 652menu "MFD GPIO expanders" 653 654config GPIO_ADP5520 655 tristate "GPIO Support for ADP5520 PMIC" 656 depends on PMIC_ADP5520 657 help 658 This option enables support for on-chip GPIO found 659 on Analog Devices ADP5520 PMICs. 660 661config GPIO_ARIZONA 662 tristate "Wolfson Microelectronics Arizona class devices" 663 depends on MFD_ARIZONA 664 help 665 Support for GPIOs on Wolfson Arizona class devices. 666 667config GPIO_CRYSTAL_COVE 668 tristate "GPIO support for Crystal Cove PMIC" 669 depends on INTEL_SOC_PMIC 670 select GPIOLIB_IRQCHIP 671 help 672 Support for GPIO pins on Crystal Cove PMIC. 673 674 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 675 inside. 676 677 This driver can also be built as a module. If so, the module will be 678 called gpio-crystalcove. 679 680config GPIO_CS5535 681 tristate "AMD CS5535/CS5536 GPIO support" 682 depends on MFD_CS5535 683 help 684 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 685 can be used for quite a number of things. The CS5535/6 is found on 686 AMD Geode and Lemote Yeeloong devices. 687 688 If unsure, say N. 689 690config GPIO_DA9052 691 tristate "Dialog DA9052 GPIO" 692 depends on PMIC_DA9052 693 help 694 Say yes here to enable the GPIO driver for the DA9052 chip. 695 696config GPIO_DA9055 697 tristate "Dialog Semiconductor DA9055 GPIO" 698 depends on MFD_DA9055 699 help 700 Say yes here to enable the GPIO driver for the DA9055 chip. 701 702 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 703 be controller by this driver. 704 705 If driver is built as a module it will be called gpio-da9055. 706 707config GPIO_DLN2 708 tristate "Diolan DLN2 GPIO support" 709 depends on MFD_DLN2 710 select GPIOLIB_IRQCHIP 711 712 help 713 Select this option to enable GPIO driver for the Diolan DLN2 714 board. 715 716 This driver can also be built as a module. If so, the module 717 will be called gpio-dln2. 718 719config GPIO_JANZ_TTL 720 tristate "Janz VMOD-TTL Digital IO Module" 721 depends on MFD_JANZ_CMODIO 722 help 723 This enables support for the Janz VMOD-TTL Digital IO module. 724 This driver provides support for driving the pins in output 725 mode only. Input mode is not supported. 726 727config GPIO_KEMPLD 728 tristate "Kontron ETX / COMexpress GPIO" 729 depends on MFD_KEMPLD 730 help 731 This enables support for the PLD GPIO interface on some Kontron ETX 732 and COMexpress (ETXexpress) modules. 733 734 This driver can also be built as a module. If so, the module will be 735 called gpio-kempld. 736 737config GPIO_LP3943 738 tristate "TI/National Semiconductor LP3943 GPIO expander" 739 depends on MFD_LP3943 740 help 741 GPIO driver for LP3943 MFD. 742 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 743 Open drain outputs are required for this usage. 744 745config GPIO_MSIC 746 bool "Intel MSIC mixed signal gpio support" 747 depends on MFD_INTEL_MSIC 748 help 749 Enable support for GPIO on intel MSIC controllers found in 750 intel MID devices 751 752config GPIO_PALMAS 753 bool "TI PALMAS series PMICs GPIO" 754 depends on MFD_PALMAS 755 help 756 Select this option to enable GPIO driver for the TI PALMAS 757 series chip family. 758 759config GPIO_RC5T583 760 bool "RICOH RC5T583 GPIO" 761 depends on MFD_RC5T583 762 help 763 Select this option to enable GPIO driver for the Ricoh RC5T583 764 chip family. 765 This driver provides the support for driving/reading the gpio pins 766 of RC5T583 device through standard gpio library. 767 768config GPIO_STMPE 769 bool "STMPE GPIOs" 770 depends on MFD_STMPE 771 depends on OF_GPIO 772 select GPIOLIB_IRQCHIP 773 help 774 This enables support for the GPIOs found on the STMPE I/O 775 Expanders. 776 777config GPIO_TC3589X 778 bool "TC3589X GPIOs" 779 depends on MFD_TC3589X 780 depends on OF_GPIO 781 select GPIOLIB_IRQCHIP 782 help 783 This enables support for the GPIOs found on the TC3589X 784 I/O Expander. 785 786config GPIO_TIMBERDALE 787 bool "Support for timberdale GPIO IP" 788 depends on MFD_TIMBERDALE 789 ---help--- 790 Add support for the GPIO IP in the timberdale FPGA. 791 792config GPIO_TPS6586X 793 bool "TPS6586X GPIO" 794 depends on MFD_TPS6586X 795 help 796 Select this option to enable GPIO driver for the TPS6586X 797 chip family. 798 799config GPIO_TPS65910 800 bool "TPS65910 GPIO" 801 depends on MFD_TPS65910 802 help 803 Select this option to enable GPIO driver for the TPS65910 804 chip family. 805 806config GPIO_TPS65912 807 tristate "TI TPS65912 GPIO" 808 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 809 help 810 This driver supports TPS65912 gpio chip 811 812config GPIO_TWL4030 813 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 814 depends on TWL4030_CORE 815 help 816 Say yes here to access the GPIO signals of various multi-function 817 power management chips from Texas Instruments. 818 819config GPIO_TWL6040 820 tristate "TWL6040 GPO" 821 depends on TWL6040_CORE 822 help 823 Say yes here to access the GPO signals of twl6040 824 audio chip from Texas Instruments. 825 826config GPIO_UCB1400 827 tristate "Philips UCB1400 GPIO" 828 depends on UCB1400_CORE 829 help 830 This enables support for the Philips UCB1400 GPIO pins. 831 The UCB1400 is an AC97 audio codec. 832 833config GPIO_WM831X 834 tristate "WM831x GPIOs" 835 depends on MFD_WM831X 836 help 837 Say yes here to access the GPIO signals of WM831x power management 838 chips from Wolfson Microelectronics. 839 840config GPIO_WM8350 841 tristate "WM8350 GPIOs" 842 depends on MFD_WM8350 843 help 844 Say yes here to access the GPIO signals of WM8350 power management 845 chips from Wolfson Microelectronics. 846 847config GPIO_WM8994 848 tristate "WM8994 GPIOs" 849 depends on MFD_WM8994 850 help 851 Say yes here to access the GPIO signals of WM8994 audio hub 852 CODECs from Wolfson Microelectronics. 853 854endmenu 855 856menu "PCI GPIO expanders" 857 depends on PCI 858 859config GPIO_AMD8111 860 tristate "AMD 8111 GPIO driver" 861 depends on PCI 862 help 863 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 864 865 Note, that usually system firmware/ACPI handles GPIO pins on their 866 own and users might easily break their systems with uncarefull usage 867 of this driver! 868 869 If unsure, say N 870 871config GPIO_BT8XX 872 tristate "BT8XX GPIO abuser" 873 depends on PCI && VIDEO_BT848=n 874 help 875 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 876 as a cheap PCI GPIO card. 877 878 This chip can be found on Miro, Hauppauge and STB TV-cards. 879 880 The card needs to be physically altered for using it as a 881 GPIO card. For more information on how to build a GPIO card 882 from a BT8xx TV card, see the documentation file at 883 Documentation/bt8xxgpio.txt 884 885 If unsure, say N. 886 887config GPIO_INTEL_MID 888 bool "Intel Mid GPIO support" 889 depends on PCI && X86 890 select GPIOLIB_IRQCHIP 891 help 892 Say Y here to support Intel Mid GPIO. 893 894config GPIO_ML_IOH 895 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 896 depends on PCI 897 select GENERIC_IRQ_CHIP 898 help 899 ML7213 is companion chip for Intel Atom E6xx series. 900 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 901 Hub) which is for IVI(In-Vehicle Infotainment) use. 902 This driver can access the IOH's GPIO device. 903 904config GPIO_PCH 905 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 906 depends on PCI && (X86_32 || COMPILE_TEST) 907 select GENERIC_IRQ_CHIP 908 help 909 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 910 which is an IOH(Input/Output Hub) for x86 embedded processor. 911 This driver can access PCH GPIO device. 912 913 This driver also can be used for LAPIS Semiconductor IOH(Input/ 914 Output Hub), ML7223 and ML7831. 915 ML7223 IOH is for MP(Media Phone) use. 916 ML7831 IOH is for general purpose use. 917 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 918 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 919 920config GPIO_RDC321X 921 tristate "RDC R-321x GPIO support" 922 depends on PCI 923 select MFD_CORE 924 select MFD_RDC321X 925 help 926 Support for the RDC R321x SoC GPIOs over southbridge 927 PCI configuration space. 928 929config GPIO_SODAVILLE 930 bool "Intel Sodaville GPIO support" 931 depends on X86 && PCI && OF 932 select GPIO_GENERIC 933 select GENERIC_IRQ_CHIP 934 help 935 Say Y here to support Intel Sodaville GPIO. 936 937endmenu 938 939menu "SPI GPIO expanders" 940 depends on SPI_MASTER 941 942config GPIO_74X164 943 tristate "74x164 serial-in/parallel-out 8-bits shift register" 944 depends on SPI_MASTER && OF 945 help 946 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 947 shift registers. This driver can be used to provide access 948 to more gpio outputs. 949 950config GPIO_MAX7301 951 tristate "Maxim MAX7301 GPIO expander" 952 depends on SPI_MASTER 953 select GPIO_MAX730X 954 help 955 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 956 957config GPIO_MCP23S08 958 tristate "Microchip MCP23xxx I/O expander" 959 depends on (SPI_MASTER && !I2C) || I2C 960 help 961 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 962 I/O expanders. 963 This provides a GPIO interface supporting inputs and outputs. 964 The I2C versions of the chips can be used as interrupt-controller. 965 966config GPIO_MC33880 967 tristate "Freescale MC33880 high-side/low-side switch" 968 depends on SPI_MASTER 969 help 970 SPI driver for Freescale MC33880 high-side/low-side switch. 971 This provides GPIO interface supporting inputs and outputs. 972 973endmenu 974 975menu "USB GPIO expanders" 976 depends on USB 977 978config GPIO_VIPERBOARD 979 tristate "Viperboard GPIO a & b support" 980 depends on MFD_VIPERBOARD && USB 981 help 982 Say yes here to access the GPIO signals of Nano River 983 Technologies Viperboard. There are two GPIO chips on the 984 board: gpioa and gpiob. 985 See viperboard API specification and Nano 986 River Tech's viperboard.h for detailed meaning 987 of the module parameters. 988 989endmenu 990 991endif 992