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_LPC18XX 234 bool "NXP LPC18XX/43XX GPIO support" 235 default y if ARCH_LPC18XX 236 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 237 help 238 Select this option to enable GPIO driver for 239 NXP LPC18XX/43XX devices. 240 241config GPIO_LYNXPOINT 242 tristate "Intel Lynxpoint GPIO support" 243 depends on ACPI && X86 244 select GPIOLIB_IRQCHIP 245 help 246 driver for GPIO functionality on Intel Lynxpoint PCH chipset 247 Requires ACPI device enumeration code to set up a platform device. 248 249config GPIO_MB86S7X 250 bool "GPIO support for Fujitsu MB86S7x Platforms" 251 depends on ARCH_MB86S7X 252 help 253 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 254 255config GPIO_MM_LANTIQ 256 bool "Lantiq Memory mapped GPIOs" 257 depends on LANTIQ && SOC_XWAY 258 help 259 This enables support for memory mapped GPIOs on the External Bus Unit 260 (EBU) found on Lantiq SoCs. The gpios are output only as they are 261 created by attaching a 16bit latch to the bus. 262 263config GPIO_MOXART 264 bool "MOXART GPIO support" 265 depends on ARCH_MOXART 266 select GPIO_GENERIC 267 help 268 Select this option to enable GPIO driver for 269 MOXA ART SoC devices. 270 271config GPIO_MPC5200 272 def_bool y 273 depends on PPC_MPC52xx 274 275config GPIO_MPC8XXX 276 bool "MPC512x/MPC8xxx GPIO support" 277 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 278 FSL_SOC_BOOKE || PPC_86xx 279 help 280 Say Y here if you're going to use hardware that connects to the 281 MPC512x/831x/834x/837x/8572/8610 GPIOs. 282 283config GPIO_MSM_V2 284 tristate "Qualcomm MSM GPIO v2" 285 depends on GPIOLIB && OF && ARCH_QCOM 286 help 287 Say yes here to support the GPIO interface on ARM v7 based 288 Qualcomm MSM chips. Most of the pins on the MSM can be 289 selected for GPIO, and are controlled by this driver. 290 291config GPIO_MVEBU 292 def_bool y 293 depends on PLAT_ORION 294 depends on OF 295 select GPIO_GENERIC 296 select GENERIC_IRQ_CHIP 297 298config GPIO_MXC 299 def_bool y 300 depends on ARCH_MXC 301 select GPIO_GENERIC 302 select GENERIC_IRQ_CHIP 303 304config GPIO_MXS 305 def_bool y 306 depends on ARCH_MXS 307 select GPIO_GENERIC 308 select GENERIC_IRQ_CHIP 309 310config GPIO_OCTEON 311 tristate "Cavium OCTEON GPIO" 312 depends on GPIOLIB && CAVIUM_OCTEON_SOC 313 default y 314 help 315 Say yes here to support the on-chip GPIO lines on the OCTEON 316 family of SOCs. 317 318config GPIO_OMAP 319 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 320 default y if ARCH_OMAP 321 depends on ARM 322 select GENERIC_IRQ_CHIP 323 select GPIOLIB_IRQCHIP 324 help 325 Say yes here to enable GPIO support for TI OMAP SoCs. 326 327config GPIO_PL061 328 bool "PrimeCell PL061 GPIO support" 329 depends on ARM_AMBA 330 select IRQ_DOMAIN 331 select GPIOLIB_IRQCHIP 332 help 333 Say yes here to support the PrimeCell PL061 GPIO device 334 335config GPIO_PXA 336 bool "PXA GPIO support" 337 depends on ARCH_PXA || ARCH_MMP 338 help 339 Say yes here to support the PXA GPIO device 340 341config GPIO_RCAR 342 tristate "Renesas R-Car GPIO" 343 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST) 344 select GPIOLIB_IRQCHIP 345 help 346 Say yes here to support GPIO on Renesas R-Car SoCs. 347 348config GPIO_SAMSUNG 349 bool 350 depends on PLAT_SAMSUNG 351 help 352 Legacy GPIO support. Use only for platforms without support for 353 pinctrl. 354 355config GPIO_SCH 356 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 357 depends on PCI && X86 358 select MFD_CORE 359 select LPC_SCH 360 help 361 Say yes here to support GPIO interface on Intel Poulsbo SCH, 362 Intel Tunnel Creek processor, Intel Centerton processor or 363 Intel Quark X1000 SoC. 364 365 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 366 powered by the core power rail and are turned off during sleep 367 modes (S3 and higher). The remaining four GPIOs are powered by 368 the Intel SCH suspend power supply. These GPIOs remain 369 active during S3. The suspend powered GPIOs can be used to wake the 370 system from the Suspend-to-RAM state. 371 372 The Intel Tunnel Creek processor has 5 GPIOs powered by the 373 core power rail and 9 from suspend power supply. 374 375 The Intel Centerton processor has a total of 30 GPIO pins. 376 Twenty-one are powered by the core power rail and 9 from the 377 suspend power supply. 378 379 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 380 power well and 6 from the suspend power well. 381 382config GPIO_SCH311X 383 tristate "SMSC SCH311x SuperI/O GPIO" 384 help 385 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 386 SCH3116 "Super I/O" chipsets. 387 388 To compile this driver as a module, choose M here: the module will 389 be called gpio-sch311x. 390 391config GPIO_SPEAR_SPICS 392 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 393 depends on PLAT_SPEAR 394 select GENERIC_IRQ_CHIP 395 help 396 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 397 398config GPIO_STA2X11 399 bool "STA2x11/ConneXt GPIO support" 400 depends on MFD_STA2X11 401 select GENERIC_IRQ_CHIP 402 help 403 Say yes here to support the STA2x11/ConneXt GPIO device. 404 The GPIO module has 128 GPIO pins with alternate functions. 405 406config GPIO_STP_XWAY 407 bool "XWAY STP GPIOs" 408 depends on SOC_XWAY 409 help 410 This enables support for the Serial To Parallel (STP) unit found on 411 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 412 that can be up to 24 bit. This peripheral is aimed at driving leds. 413 Some of the gpios/leds can be auto updated by the soc with dsl and 414 phy status. 415 416config GPIO_SYSCON 417 tristate "GPIO based on SYSCON" 418 depends on MFD_SYSCON && OF 419 help 420 Say yes here to support GPIO functionality though SYSCON driver. 421 422config GPIO_TB10X 423 bool 424 select GENERIC_IRQ_CHIP 425 select OF_GPIO 426 427config GPIO_TS5500 428 tristate "TS-5500 DIO blocks and compatibles" 429 depends on TS5500 || COMPILE_TEST 430 help 431 This driver supports Digital I/O exposed by pin blocks found on some 432 Technologic Systems platforms. It includes, but is not limited to, 3 433 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 434 LCD port. 435 436config GPIO_TZ1090 437 bool "Toumaz Xenif TZ1090 GPIO support" 438 depends on SOC_TZ1090 439 select GENERIC_IRQ_CHIP 440 default y 441 help 442 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 443 444config GPIO_TZ1090_PDC 445 bool "Toumaz Xenif TZ1090 PDC GPIO support" 446 depends on SOC_TZ1090 447 default y 448 help 449 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 450 451config GPIO_VF610 452 def_bool y 453 depends on ARCH_MXC && SOC_VF610 454 select GPIOLIB_IRQCHIP 455 help 456 Say yes here to support Vybrid vf610 GPIOs. 457 458config GPIO_VR41XX 459 tristate "NEC VR4100 series General-purpose I/O Uint support" 460 depends on CPU_VR41XX 461 help 462 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 463 464config GPIO_VX855 465 tristate "VIA VX855/VX875 GPIO" 466 depends on PCI 467 select MFD_CORE 468 select MFD_VX855 469 help 470 Support access to the VX855/VX875 GPIO lines through the gpio library. 471 472 This driver provides common support for accessing the device, 473 additional drivers must be enabled in order to use the 474 functionality of the device. 475 476config GPIO_XGENE 477 bool "APM X-Gene GPIO controller support" 478 depends on ARM64 && OF_GPIO 479 help 480 This driver is to support the GPIO block within the APM X-Gene SoC 481 platform's generic flash controller. The GPIO pins are muxed with 482 the generic flash controller's address and data pins. Say yes 483 here to enable the GFC GPIO functionality. 484 485config GPIO_XGENE_SB 486 tristate "APM X-Gene GPIO standby controller support" 487 depends on ARCH_XGENE && OF_GPIO 488 select GPIO_GENERIC 489 help 490 This driver supports the GPIO block within the APM X-Gene 491 Standby Domain. Say yes here to enable the GPIO functionality. 492 493config GPIO_XILINX 494 tristate "Xilinx GPIO support" 495 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 496 help 497 Say yes here to support the Xilinx FPGA GPIO device 498 499config GPIO_XTENSA 500 bool "Xtensa GPIO32 support" 501 depends on XTENSA 502 depends on HAVE_XTENSA_GPIO32 503 depends on !SMP 504 help 505 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 506 and EXPSTATE (output) ports 507 508config GPIO_ZEVIO 509 bool "LSI ZEVIO SoC memory mapped GPIOs" 510 depends on ARM && OF_GPIO 511 help 512 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 513 514config GPIO_ZYNQ 515 tristate "Xilinx Zynq GPIO support" 516 depends on ARCH_ZYNQ 517 select GPIOLIB_IRQCHIP 518 help 519 Say yes here to support Xilinx Zynq GPIO controller. 520 521endmenu 522 523menu "I2C GPIO expanders" 524 depends on I2C 525 526config GPIO_ADP5588 527 tristate "ADP5588 I2C GPIO expander" 528 depends on I2C 529 help 530 This option enables support for 18 GPIOs found 531 on Analog Devices ADP5588 GPIO Expanders. 532 533config GPIO_ADP5588_IRQ 534 bool "Interrupt controller support for ADP5588" 535 depends on GPIO_ADP5588=y 536 help 537 Say yes here to enable the adp5588 to be used as an interrupt 538 controller. It requires the driver to be built in the kernel. 539 540config GPIO_ADNP 541 tristate "Avionic Design N-bit GPIO expander" 542 depends on I2C && OF_GPIO 543 select GPIOLIB_IRQCHIP 544 help 545 This option enables support for N GPIOs found on Avionic Design 546 I2C GPIO expanders. The register space will be extended by powers 547 of two, so the controller will need to accommodate for that. For 548 example: if a controller provides 48 pins, 6 registers will be 549 enough to represent all pins, but the driver will assume a 550 register layout for 64 pins (8 registers). 551 552config GPIO_MAX7300 553 tristate "Maxim MAX7300 GPIO expander" 554 depends on I2C 555 select GPIO_MAX730X 556 help 557 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 558 559config GPIO_MAX732X 560 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 561 depends on I2C 562 help 563 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 564 Port Expanders. Each IO port on these chips has a fixed role of 565 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 566 Input and Output (designed by 'P'). The combinations are listed 567 below: 568 569 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 570 max7322 (4I4O), max7323 (4P4O) 571 572 16 bits: max7324 (8I8O), max7325 (8P8O), 573 max7326 (4I12O), max7327 (4P12O) 574 575 Board setup code must specify the model to use, and the start 576 number for these GPIOs. 577 578config GPIO_MAX732X_IRQ 579 bool "Interrupt controller support for MAX732x" 580 depends on GPIO_MAX732X=y 581 select GPIOLIB_IRQCHIP 582 help 583 Say yes here to enable the max732x to be used as an interrupt 584 controller. It requires the driver to be built in the kernel. 585 586config GPIO_MC9S08DZ60 587 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 588 depends on I2C=y && MACH_MX35_3DS 589 help 590 Select this to enable the MC9S08DZ60 GPIO driver 591 592config GPIO_PCA953X 593 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 594 depends on I2C 595 help 596 Say yes here to provide access to several register-oriented 597 SMBus I/O expanders, made mostly by NXP or TI. Compatible 598 models include: 599 600 4 bits: pca9536, pca9537 601 602 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 603 pca9556, pca9557, pca9574, tca6408, xra1202 604 605 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 606 tca6416 607 608 24 bits: tca6424 609 610 40 bits: pca9505, pca9698 611 612config GPIO_PCA953X_IRQ 613 bool "Interrupt controller support for PCA953x" 614 depends on GPIO_PCA953X=y 615 select GPIOLIB_IRQCHIP 616 help 617 Say yes here to enable the pca953x to be used as an interrupt 618 controller. It requires the driver to be built in the kernel. 619 620config GPIO_PCF857X 621 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 622 depends on I2C 623 select GPIOLIB_IRQCHIP 624 select IRQ_DOMAIN 625 help 626 Say yes here to provide access to most "quasi-bidirectional" I2C 627 GPIO expanders used for additional digital outputs or inputs. 628 Most of these parts are from NXP, though TI is a second source for 629 some of them. Compatible models include: 630 631 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 632 pca9670, pca9672, pca9674, pca9674a, 633 max7328, max7329 634 635 16 bits: pcf8575, pcf8575c, pca8575, 636 pca9671, pca9673, pca9675 637 638 Your board setup code will need to declare the expanders in 639 use, and assign numbers to the GPIOs they expose. Those GPIOs 640 can then be used from drivers and other kernel code, just like 641 other GPIOs, but only accessible from task contexts. 642 643 This driver provides an in-kernel interface to those GPIOs using 644 platform-neutral GPIO calls. 645 646config GPIO_SX150X 647 bool "Semtech SX150x I2C GPIO expander" 648 depends on I2C=y 649 select GPIOLIB_IRQCHIP 650 default n 651 help 652 Say yes here to provide support for Semtech SX150-series I2C 653 GPIO expanders. Compatible models include: 654 655 8 bits: sx1508q 656 16 bits: sx1509q 657 658endmenu 659 660menu "MFD GPIO expanders" 661 662config GPIO_ADP5520 663 tristate "GPIO Support for ADP5520 PMIC" 664 depends on PMIC_ADP5520 665 help 666 This option enables support for on-chip GPIO found 667 on Analog Devices ADP5520 PMICs. 668 669config GPIO_ARIZONA 670 tristate "Wolfson Microelectronics Arizona class devices" 671 depends on MFD_ARIZONA 672 help 673 Support for GPIOs on Wolfson Arizona class devices. 674 675config GPIO_CRYSTAL_COVE 676 tristate "GPIO support for Crystal Cove PMIC" 677 depends on INTEL_SOC_PMIC 678 select GPIOLIB_IRQCHIP 679 help 680 Support for GPIO pins on Crystal Cove PMIC. 681 682 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 683 inside. 684 685 This driver can also be built as a module. If so, the module will be 686 called gpio-crystalcove. 687 688config GPIO_CS5535 689 tristate "AMD CS5535/CS5536 GPIO support" 690 depends on MFD_CS5535 691 help 692 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 693 can be used for quite a number of things. The CS5535/6 is found on 694 AMD Geode and Lemote Yeeloong devices. 695 696 If unsure, say N. 697 698config GPIO_DA9052 699 tristate "Dialog DA9052 GPIO" 700 depends on PMIC_DA9052 701 help 702 Say yes here to enable the GPIO driver for the DA9052 chip. 703 704config GPIO_DA9055 705 tristate "Dialog Semiconductor DA9055 GPIO" 706 depends on MFD_DA9055 707 help 708 Say yes here to enable the GPIO driver for the DA9055 chip. 709 710 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 711 be controller by this driver. 712 713 If driver is built as a module it will be called gpio-da9055. 714 715config GPIO_DLN2 716 tristate "Diolan DLN2 GPIO support" 717 depends on MFD_DLN2 718 select GPIOLIB_IRQCHIP 719 720 help 721 Select this option to enable GPIO driver for the Diolan DLN2 722 board. 723 724 This driver can also be built as a module. If so, the module 725 will be called gpio-dln2. 726 727config GPIO_JANZ_TTL 728 tristate "Janz VMOD-TTL Digital IO Module" 729 depends on MFD_JANZ_CMODIO 730 help 731 This enables support for the Janz VMOD-TTL Digital IO module. 732 This driver provides support for driving the pins in output 733 mode only. Input mode is not supported. 734 735config GPIO_KEMPLD 736 tristate "Kontron ETX / COMexpress GPIO" 737 depends on MFD_KEMPLD 738 help 739 This enables support for the PLD GPIO interface on some Kontron ETX 740 and COMexpress (ETXexpress) modules. 741 742 This driver can also be built as a module. If so, the module will be 743 called gpio-kempld. 744 745config GPIO_LP3943 746 tristate "TI/National Semiconductor LP3943 GPIO expander" 747 depends on MFD_LP3943 748 help 749 GPIO driver for LP3943 MFD. 750 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 751 Open drain outputs are required for this usage. 752 753config GPIO_MSIC 754 bool "Intel MSIC mixed signal gpio support" 755 depends on MFD_INTEL_MSIC 756 help 757 Enable support for GPIO on intel MSIC controllers found in 758 intel MID devices 759 760config GPIO_PALMAS 761 bool "TI PALMAS series PMICs GPIO" 762 depends on MFD_PALMAS 763 help 764 Select this option to enable GPIO driver for the TI PALMAS 765 series chip family. 766 767config GPIO_RC5T583 768 bool "RICOH RC5T583 GPIO" 769 depends on MFD_RC5T583 770 help 771 Select this option to enable GPIO driver for the Ricoh RC5T583 772 chip family. 773 This driver provides the support for driving/reading the gpio pins 774 of RC5T583 device through standard gpio library. 775 776config GPIO_STMPE 777 bool "STMPE GPIOs" 778 depends on MFD_STMPE 779 depends on OF_GPIO 780 select GPIOLIB_IRQCHIP 781 help 782 This enables support for the GPIOs found on the STMPE I/O 783 Expanders. 784 785config GPIO_TC3589X 786 bool "TC3589X GPIOs" 787 depends on MFD_TC3589X 788 depends on OF_GPIO 789 select GPIOLIB_IRQCHIP 790 help 791 This enables support for the GPIOs found on the TC3589X 792 I/O Expander. 793 794config GPIO_TIMBERDALE 795 bool "Support for timberdale GPIO IP" 796 depends on MFD_TIMBERDALE 797 ---help--- 798 Add support for the GPIO IP in the timberdale FPGA. 799 800config GPIO_TPS6586X 801 bool "TPS6586X GPIO" 802 depends on MFD_TPS6586X 803 help 804 Select this option to enable GPIO driver for the TPS6586X 805 chip family. 806 807config GPIO_TPS65910 808 bool "TPS65910 GPIO" 809 depends on MFD_TPS65910 810 help 811 Select this option to enable GPIO driver for the TPS65910 812 chip family. 813 814config GPIO_TPS65912 815 tristate "TI TPS65912 GPIO" 816 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 817 help 818 This driver supports TPS65912 gpio chip 819 820config GPIO_TWL4030 821 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 822 depends on TWL4030_CORE 823 help 824 Say yes here to access the GPIO signals of various multi-function 825 power management chips from Texas Instruments. 826 827config GPIO_TWL6040 828 tristate "TWL6040 GPO" 829 depends on TWL6040_CORE 830 help 831 Say yes here to access the GPO signals of twl6040 832 audio chip from Texas Instruments. 833 834config GPIO_UCB1400 835 tristate "Philips UCB1400 GPIO" 836 depends on UCB1400_CORE 837 help 838 This enables support for the Philips UCB1400 GPIO pins. 839 The UCB1400 is an AC97 audio codec. 840 841config GPIO_WM831X 842 tristate "WM831x GPIOs" 843 depends on MFD_WM831X 844 help 845 Say yes here to access the GPIO signals of WM831x power management 846 chips from Wolfson Microelectronics. 847 848config GPIO_WM8350 849 tristate "WM8350 GPIOs" 850 depends on MFD_WM8350 851 help 852 Say yes here to access the GPIO signals of WM8350 power management 853 chips from Wolfson Microelectronics. 854 855config GPIO_WM8994 856 tristate "WM8994 GPIOs" 857 depends on MFD_WM8994 858 help 859 Say yes here to access the GPIO signals of WM8994 audio hub 860 CODECs from Wolfson Microelectronics. 861 862endmenu 863 864menu "PCI GPIO expanders" 865 depends on PCI 866 867config GPIO_AMD8111 868 tristate "AMD 8111 GPIO driver" 869 depends on PCI 870 help 871 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 872 873 Note, that usually system firmware/ACPI handles GPIO pins on their 874 own and users might easily break their systems with uncarefull usage 875 of this driver! 876 877 If unsure, say N 878 879config GPIO_BT8XX 880 tristate "BT8XX GPIO abuser" 881 depends on PCI && VIDEO_BT848=n 882 help 883 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 884 as a cheap PCI GPIO card. 885 886 This chip can be found on Miro, Hauppauge and STB TV-cards. 887 888 The card needs to be physically altered for using it as a 889 GPIO card. For more information on how to build a GPIO card 890 from a BT8xx TV card, see the documentation file at 891 Documentation/bt8xxgpio.txt 892 893 If unsure, say N. 894 895config GPIO_INTEL_MID 896 bool "Intel Mid GPIO support" 897 depends on PCI && X86 898 select GPIOLIB_IRQCHIP 899 help 900 Say Y here to support Intel Mid GPIO. 901 902config GPIO_ML_IOH 903 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 904 depends on PCI 905 select GENERIC_IRQ_CHIP 906 help 907 ML7213 is companion chip for Intel Atom E6xx series. 908 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 909 Hub) which is for IVI(In-Vehicle Infotainment) use. 910 This driver can access the IOH's GPIO device. 911 912config GPIO_PCH 913 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 914 depends on PCI && (X86_32 || COMPILE_TEST) 915 select GENERIC_IRQ_CHIP 916 help 917 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 918 which is an IOH(Input/Output Hub) for x86 embedded processor. 919 This driver can access PCH GPIO device. 920 921 This driver also can be used for LAPIS Semiconductor IOH(Input/ 922 Output Hub), ML7223 and ML7831. 923 ML7223 IOH is for MP(Media Phone) use. 924 ML7831 IOH is for general purpose use. 925 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 926 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 927 928config GPIO_RDC321X 929 tristate "RDC R-321x GPIO support" 930 depends on PCI 931 select MFD_CORE 932 select MFD_RDC321X 933 help 934 Support for the RDC R321x SoC GPIOs over southbridge 935 PCI configuration space. 936 937config GPIO_SODAVILLE 938 bool "Intel Sodaville GPIO support" 939 depends on X86 && PCI && OF 940 select GPIO_GENERIC 941 select GENERIC_IRQ_CHIP 942 help 943 Say Y here to support Intel Sodaville GPIO. 944 945endmenu 946 947menu "SPI GPIO expanders" 948 depends on SPI_MASTER 949 950config GPIO_74X164 951 tristate "74x164 serial-in/parallel-out 8-bits shift register" 952 depends on SPI_MASTER && OF 953 help 954 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 955 shift registers. This driver can be used to provide access 956 to more gpio outputs. 957 958config GPIO_MAX7301 959 tristate "Maxim MAX7301 GPIO expander" 960 depends on SPI_MASTER 961 select GPIO_MAX730X 962 help 963 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 964 965config GPIO_MCP23S08 966 tristate "Microchip MCP23xxx I/O expander" 967 depends on (SPI_MASTER && !I2C) || I2C 968 help 969 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 970 I/O expanders. 971 This provides a GPIO interface supporting inputs and outputs. 972 The I2C versions of the chips can be used as interrupt-controller. 973 974config GPIO_MC33880 975 tristate "Freescale MC33880 high-side/low-side switch" 976 depends on SPI_MASTER 977 help 978 SPI driver for Freescale MC33880 high-side/low-side switch. 979 This provides GPIO interface supporting inputs and outputs. 980 981endmenu 982 983menu "USB GPIO expanders" 984 depends on USB 985 986config GPIO_VIPERBOARD 987 tristate "Viperboard GPIO a & b support" 988 depends on MFD_VIPERBOARD && USB 989 help 990 Say yes here to access the GPIO signals of Nano River 991 Technologies Viperboard. There are two GPIO chips on the 992 board: gpioa and gpiob. 993 See viperboard API specification and Nano 994 River Tech's viperboard.h for detailed meaning 995 of the module parameters. 996 997endmenu 998 999endif 1000