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 GPIOLIB_IRQCHIP 117 help 118 Say Y or M here to build support for the Altera PIO device. 119 120 If driver is built as a module it will be called gpio-altera. 121 122config GPIO_BCM_KONA 123 bool "Broadcom Kona GPIO" 124 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 125 help 126 Turn on GPIO support for Broadcom "Kona" chips. 127 128config GPIO_BRCMSTB 129 tristate "BRCMSTB GPIO support" 130 default y if ARCH_BRCMSTB 131 depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST) 132 select GPIO_GENERIC 133 help 134 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 135 136config GPIO_CLPS711X 137 tristate "CLPS711X GPIO support" 138 depends on ARCH_CLPS711X || COMPILE_TEST 139 select GPIO_GENERIC 140 help 141 Say yes here to support GPIO on CLPS711X SoCs. 142 143config GPIO_DAVINCI 144 bool "TI Davinci/Keystone GPIO support" 145 default y if ARCH_DAVINCI 146 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 147 help 148 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 149 150config GPIO_DWAPB 151 tristate "Synopsys DesignWare APB GPIO driver" 152 select GPIO_GENERIC 153 select GENERIC_IRQ_CHIP 154 help 155 Say Y or M here to build support for the Synopsys DesignWare APB 156 GPIO block. 157 158config GPIO_EM 159 tristate "Emma Mobile GPIO" 160 depends on ARM && OF_GPIO 161 help 162 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 163 164config GPIO_EP93XX 165 def_bool y 166 depends on ARCH_EP93XX 167 select GPIO_GENERIC 168 169config GPIO_ETRAXFS 170 bool "Axis ETRAX FS General I/O" 171 depends on CRIS || COMPILE_TEST 172 depends on OF 173 select GPIO_GENERIC 174 help 175 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 176 177config GPIO_F7188X 178 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 179 depends on X86 180 help 181 This option enables support for GPIOs found on Fintek Super-I/O 182 chips F71869, F71869A, F71882FG and F71889F. 183 184 To compile this driver as a module, choose M here: the module will 185 be called f7188x-gpio. 186 187config GPIO_GE_FPGA 188 bool "GE FPGA based GPIO" 189 depends on GE_FPGA 190 select GPIO_GENERIC 191 help 192 Support for common GPIO functionality provided on some GE Single Board 193 Computers. 194 195 This driver provides basic support (configure as input or output, read 196 and write pin state) for GPIO implemented in a number of GE single 197 board computers. 198 199config GPIO_GENERIC_PLATFORM 200 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 201 select GPIO_GENERIC 202 help 203 Say yes here to support basic platform_device memory-mapped GPIO controllers. 204 205config GPIO_GRGPIO 206 tristate "Aeroflex Gaisler GRGPIO support" 207 depends on OF 208 select GPIO_GENERIC 209 select IRQ_DOMAIN 210 help 211 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 212 VHDL IP core library. 213 214config GPIO_ICH 215 tristate "Intel ICH GPIO" 216 depends on PCI && X86 217 select MFD_CORE 218 select LPC_ICH 219 help 220 Say yes here to support the GPIO functionality of a number of Intel 221 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 222 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 223 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 224 225 If unsure, say N. 226 227config GPIO_IOP 228 tristate "Intel IOP GPIO" 229 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 230 help 231 Say yes here to support the GPIO functionality of a number of Intel 232 IOP32X or IOP33X. 233 234 If unsure, say N. 235 236config GPIO_IT8761E 237 tristate "IT8761E GPIO support" 238 depends on X86 # unconditional access to IO space. 239 help 240 Say yes here to support GPIO functionality of IT8761E super I/O chip. 241 242config GPIO_LOONGSON 243 bool "Loongson-2/3 GPIO support" 244 depends on CPU_LOONGSON2 || CPU_LOONGSON3 245 help 246 driver for GPIO functionality on Loongson-2F/3A/3B processors. 247 248config GPIO_LPC18XX 249 bool "NXP LPC18XX/43XX GPIO support" 250 default y if ARCH_LPC18XX 251 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 252 help 253 Select this option to enable GPIO driver for 254 NXP LPC18XX/43XX devices. 255 256config GPIO_LYNXPOINT 257 tristate "Intel Lynxpoint GPIO support" 258 depends on ACPI && X86 259 select GPIOLIB_IRQCHIP 260 help 261 driver for GPIO functionality on Intel Lynxpoint PCH chipset 262 Requires ACPI device enumeration code to set up a platform device. 263 264config GPIO_MB86S7X 265 bool "GPIO support for Fujitsu MB86S7x Platforms" 266 depends on ARCH_MB86S7X 267 help 268 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 269 270config GPIO_MM_LANTIQ 271 bool "Lantiq Memory mapped GPIOs" 272 depends on LANTIQ && SOC_XWAY 273 help 274 This enables support for memory mapped GPIOs on the External Bus Unit 275 (EBU) found on Lantiq SoCs. The gpios are output only as they are 276 created by attaching a 16bit latch to the bus. 277 278config GPIO_MOXART 279 bool "MOXART GPIO support" 280 depends on ARCH_MOXART 281 select GPIO_GENERIC 282 help 283 Select this option to enable GPIO driver for 284 MOXA ART SoC devices. 285 286config GPIO_MPC5200 287 def_bool y 288 depends on PPC_MPC52xx 289 290config GPIO_MPC8XXX 291 bool "MPC512x/MPC8xxx GPIO support" 292 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 293 FSL_SOC_BOOKE || PPC_86xx 294 help 295 Say Y here if you're going to use hardware that connects to the 296 MPC512x/831x/834x/837x/8572/8610 GPIOs. 297 298config GPIO_MSM_V2 299 tristate "Qualcomm MSM GPIO v2" 300 depends on GPIOLIB && OF && ARCH_QCOM 301 help 302 Say yes here to support the GPIO interface on ARM v7 based 303 Qualcomm MSM chips. Most of the pins on the MSM can be 304 selected for GPIO, and are controlled by this driver. 305 306config GPIO_MVEBU 307 def_bool y 308 depends on PLAT_ORION 309 depends on OF 310 select GENERIC_IRQ_CHIP 311 312config GPIO_MXC 313 def_bool y 314 depends on ARCH_MXC 315 select GPIO_GENERIC 316 select GENERIC_IRQ_CHIP 317 318config GPIO_MXS 319 def_bool y 320 depends on ARCH_MXS 321 select GPIO_GENERIC 322 select GENERIC_IRQ_CHIP 323 324config GPIO_OCTEON 325 tristate "Cavium OCTEON GPIO" 326 depends on GPIOLIB && CAVIUM_OCTEON_SOC 327 default y 328 help 329 Say yes here to support the on-chip GPIO lines on the OCTEON 330 family of SOCs. 331 332config GPIO_OMAP 333 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 334 default y if ARCH_OMAP 335 depends on ARM 336 select GENERIC_IRQ_CHIP 337 select GPIOLIB_IRQCHIP 338 help 339 Say yes here to enable GPIO support for TI OMAP SoCs. 340 341config GPIO_PL061 342 bool "PrimeCell PL061 GPIO support" 343 depends on ARM_AMBA 344 select IRQ_DOMAIN 345 select GPIOLIB_IRQCHIP 346 help 347 Say yes here to support the PrimeCell PL061 GPIO device 348 349config GPIO_PXA 350 bool "PXA GPIO support" 351 depends on ARCH_PXA || ARCH_MMP 352 help 353 Say yes here to support the PXA GPIO device 354 355config GPIO_RCAR 356 tristate "Renesas R-Car GPIO" 357 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST) 358 select GPIOLIB_IRQCHIP 359 help 360 Say yes here to support GPIO on Renesas R-Car SoCs. 361 362config GPIO_SAMSUNG 363 bool 364 depends on PLAT_SAMSUNG 365 help 366 Legacy GPIO support. Use only for platforms without support for 367 pinctrl. 368 369config GPIO_SCH 370 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 371 depends on PCI && X86 372 select MFD_CORE 373 select LPC_SCH 374 help 375 Say yes here to support GPIO interface on Intel Poulsbo SCH, 376 Intel Tunnel Creek processor, Intel Centerton processor or 377 Intel Quark X1000 SoC. 378 379 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 380 powered by the core power rail and are turned off during sleep 381 modes (S3 and higher). The remaining four GPIOs are powered by 382 the Intel SCH suspend power supply. These GPIOs remain 383 active during S3. The suspend powered GPIOs can be used to wake the 384 system from the Suspend-to-RAM state. 385 386 The Intel Tunnel Creek processor has 5 GPIOs powered by the 387 core power rail and 9 from suspend power supply. 388 389 The Intel Centerton processor has a total of 30 GPIO pins. 390 Twenty-one are powered by the core power rail and 9 from the 391 suspend power supply. 392 393 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 394 power well and 6 from the suspend power well. 395 396config GPIO_SCH311X 397 tristate "SMSC SCH311x SuperI/O GPIO" 398 help 399 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 400 SCH3116 "Super I/O" chipsets. 401 402 To compile this driver as a module, choose M here: the module will 403 be called gpio-sch311x. 404 405config GPIO_SPEAR_SPICS 406 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 407 depends on PLAT_SPEAR 408 select GENERIC_IRQ_CHIP 409 help 410 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 411 412config GPIO_STA2X11 413 bool "STA2x11/ConneXt GPIO support" 414 depends on MFD_STA2X11 415 select GENERIC_IRQ_CHIP 416 help 417 Say yes here to support the STA2x11/ConneXt GPIO device. 418 The GPIO module has 128 GPIO pins with alternate functions. 419 420config GPIO_STP_XWAY 421 bool "XWAY STP GPIOs" 422 depends on SOC_XWAY 423 help 424 This enables support for the Serial To Parallel (STP) unit found on 425 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 426 that can be up to 24 bit. This peripheral is aimed at driving leds. 427 Some of the gpios/leds can be auto updated by the soc with dsl and 428 phy status. 429 430config GPIO_SYSCON 431 tristate "GPIO based on SYSCON" 432 depends on MFD_SYSCON && OF 433 help 434 Say yes here to support GPIO functionality though SYSCON driver. 435 436config GPIO_TB10X 437 bool 438 select GENERIC_IRQ_CHIP 439 select OF_GPIO 440 441config GPIO_TS5500 442 tristate "TS-5500 DIO blocks and compatibles" 443 depends on TS5500 || COMPILE_TEST 444 help 445 This driver supports Digital I/O exposed by pin blocks found on some 446 Technologic Systems platforms. It includes, but is not limited to, 3 447 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 448 LCD port. 449 450config GPIO_TZ1090 451 bool "Toumaz Xenif TZ1090 GPIO support" 452 depends on SOC_TZ1090 453 select GENERIC_IRQ_CHIP 454 default y 455 help 456 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 457 458config GPIO_TZ1090_PDC 459 bool "Toumaz Xenif TZ1090 PDC GPIO support" 460 depends on SOC_TZ1090 461 default y 462 help 463 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 464 465config GPIO_VF610 466 def_bool y 467 depends on ARCH_MXC && SOC_VF610 468 select GPIOLIB_IRQCHIP 469 help 470 Say yes here to support Vybrid vf610 GPIOs. 471 472config GPIO_VR41XX 473 tristate "NEC VR4100 series General-purpose I/O Uint support" 474 depends on CPU_VR41XX 475 help 476 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 477 478config GPIO_VX855 479 tristate "VIA VX855/VX875 GPIO" 480 depends on PCI 481 select MFD_CORE 482 select MFD_VX855 483 help 484 Support access to the VX855/VX875 GPIO lines through the gpio library. 485 486 This driver provides common support for accessing the device, 487 additional drivers must be enabled in order to use the 488 functionality of the device. 489 490config GPIO_XGENE 491 bool "APM X-Gene GPIO controller support" 492 depends on ARM64 && OF_GPIO 493 help 494 This driver is to support the GPIO block within the APM X-Gene SoC 495 platform's generic flash controller. The GPIO pins are muxed with 496 the generic flash controller's address and data pins. Say yes 497 here to enable the GFC GPIO functionality. 498 499config GPIO_XGENE_SB 500 tristate "APM X-Gene GPIO standby controller support" 501 depends on ARCH_XGENE && OF_GPIO 502 select GPIO_GENERIC 503 help 504 This driver supports the GPIO block within the APM X-Gene 505 Standby Domain. Say yes here to enable the GPIO functionality. 506 507config GPIO_XILINX 508 tristate "Xilinx GPIO support" 509 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 510 help 511 Say yes here to support the Xilinx FPGA GPIO device 512 513config GPIO_XLP 514 tristate "Netlogic XLP GPIO support" 515 depends on CPU_XLP 516 select GPIOLIB_IRQCHIP 517 help 518 This driver provides support for GPIO interface on Netlogic XLP MIPS64 519 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 520 XLP9XX and XLP5XX. 521 522 If unsure, say N. 523 524config GPIO_XTENSA 525 bool "Xtensa GPIO32 support" 526 depends on XTENSA 527 depends on HAVE_XTENSA_GPIO32 528 depends on !SMP 529 help 530 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 531 and EXPSTATE (output) ports 532 533config GPIO_ZEVIO 534 bool "LSI ZEVIO SoC memory mapped GPIOs" 535 depends on ARM && OF_GPIO 536 help 537 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 538 539config GPIO_ZYNQ 540 tristate "Xilinx Zynq GPIO support" 541 depends on ARCH_ZYNQ || ARCH_ZYNQMP 542 select GPIOLIB_IRQCHIP 543 help 544 Say yes here to support Xilinx Zynq GPIO controller. 545 546endmenu 547 548menu "I2C GPIO expanders" 549 depends on I2C 550 551config GPIO_ADP5588 552 tristate "ADP5588 I2C GPIO expander" 553 depends on I2C 554 help 555 This option enables support for 18 GPIOs found 556 on Analog Devices ADP5588 GPIO Expanders. 557 558config GPIO_ADP5588_IRQ 559 bool "Interrupt controller support for ADP5588" 560 depends on GPIO_ADP5588=y 561 help 562 Say yes here to enable the adp5588 to be used as an interrupt 563 controller. It requires the driver to be built in the kernel. 564 565config GPIO_ADNP 566 tristate "Avionic Design N-bit GPIO expander" 567 depends on I2C && OF_GPIO 568 select GPIOLIB_IRQCHIP 569 help 570 This option enables support for N GPIOs found on Avionic Design 571 I2C GPIO expanders. The register space will be extended by powers 572 of two, so the controller will need to accommodate for that. For 573 example: if a controller provides 48 pins, 6 registers will be 574 enough to represent all pins, but the driver will assume a 575 register layout for 64 pins (8 registers). 576 577config GPIO_MAX7300 578 tristate "Maxim MAX7300 GPIO expander" 579 depends on I2C 580 select GPIO_MAX730X 581 help 582 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 583 584config GPIO_MAX732X 585 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 586 depends on I2C 587 help 588 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 589 Port Expanders. Each IO port on these chips has a fixed role of 590 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 591 Input and Output (designed by 'P'). The combinations are listed 592 below: 593 594 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 595 max7322 (4I4O), max7323 (4P4O) 596 597 16 bits: max7324 (8I8O), max7325 (8P8O), 598 max7326 (4I12O), max7327 (4P12O) 599 600 Board setup code must specify the model to use, and the start 601 number for these GPIOs. 602 603config GPIO_MAX732X_IRQ 604 bool "Interrupt controller support for MAX732x" 605 depends on GPIO_MAX732X=y 606 select GPIOLIB_IRQCHIP 607 help 608 Say yes here to enable the max732x to be used as an interrupt 609 controller. It requires the driver to be built in the kernel. 610 611config GPIO_MC9S08DZ60 612 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 613 depends on I2C=y && MACH_MX35_3DS 614 help 615 Select this to enable the MC9S08DZ60 GPIO driver 616 617config GPIO_PCA953X 618 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 619 depends on I2C 620 help 621 Say yes here to provide access to several register-oriented 622 SMBus I/O expanders, made mostly by NXP or TI. Compatible 623 models include: 624 625 4 bits: pca9536, pca9537 626 627 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 628 pca9556, pca9557, pca9574, tca6408, xra1202 629 630 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 631 tca6416 632 633 24 bits: tca6424 634 635 40 bits: pca9505, pca9698 636 637config GPIO_PCA953X_IRQ 638 bool "Interrupt controller support for PCA953x" 639 depends on GPIO_PCA953X=y 640 select GPIOLIB_IRQCHIP 641 help 642 Say yes here to enable the pca953x to be used as an interrupt 643 controller. It requires the driver to be built in the kernel. 644 645config GPIO_PCF857X 646 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 647 depends on I2C 648 select GPIOLIB_IRQCHIP 649 select IRQ_DOMAIN 650 help 651 Say yes here to provide access to most "quasi-bidirectional" I2C 652 GPIO expanders used for additional digital outputs or inputs. 653 Most of these parts are from NXP, though TI is a second source for 654 some of them. Compatible models include: 655 656 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 657 pca9670, pca9672, pca9674, pca9674a, 658 max7328, max7329 659 660 16 bits: pcf8575, pcf8575c, pca8575, 661 pca9671, pca9673, pca9675 662 663 Your board setup code will need to declare the expanders in 664 use, and assign numbers to the GPIOs they expose. Those GPIOs 665 can then be used from drivers and other kernel code, just like 666 other GPIOs, but only accessible from task contexts. 667 668 This driver provides an in-kernel interface to those GPIOs using 669 platform-neutral GPIO calls. 670 671config GPIO_SX150X 672 bool "Semtech SX150x I2C GPIO expander" 673 depends on I2C=y 674 select GPIOLIB_IRQCHIP 675 default n 676 help 677 Say yes here to provide support for Semtech SX150-series I2C 678 GPIO expanders. Compatible models include: 679 680 8 bits: sx1508q 681 16 bits: sx1509q 682 683endmenu 684 685menu "MFD GPIO expanders" 686 687config GPIO_ADP5520 688 tristate "GPIO Support for ADP5520 PMIC" 689 depends on PMIC_ADP5520 690 help 691 This option enables support for on-chip GPIO found 692 on Analog Devices ADP5520 PMICs. 693 694config GPIO_ARIZONA 695 tristate "Wolfson Microelectronics Arizona class devices" 696 depends on MFD_ARIZONA 697 help 698 Support for GPIOs on Wolfson Arizona class devices. 699 700config GPIO_CRYSTAL_COVE 701 tristate "GPIO support for Crystal Cove PMIC" 702 depends on INTEL_SOC_PMIC 703 select GPIOLIB_IRQCHIP 704 help 705 Support for GPIO pins on Crystal Cove PMIC. 706 707 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 708 inside. 709 710 This driver can also be built as a module. If so, the module will be 711 called gpio-crystalcove. 712 713config GPIO_CS5535 714 tristate "AMD CS5535/CS5536 GPIO support" 715 depends on MFD_CS5535 716 help 717 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 718 can be used for quite a number of things. The CS5535/6 is found on 719 AMD Geode and Lemote Yeeloong devices. 720 721 If unsure, say N. 722 723config GPIO_DA9052 724 tristate "Dialog DA9052 GPIO" 725 depends on PMIC_DA9052 726 help 727 Say yes here to enable the GPIO driver for the DA9052 chip. 728 729config GPIO_DA9055 730 tristate "Dialog Semiconductor DA9055 GPIO" 731 depends on MFD_DA9055 732 help 733 Say yes here to enable the GPIO driver for the DA9055 chip. 734 735 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 736 be controller by this driver. 737 738 If driver is built as a module it will be called gpio-da9055. 739 740config GPIO_DLN2 741 tristate "Diolan DLN2 GPIO support" 742 depends on MFD_DLN2 743 select GPIOLIB_IRQCHIP 744 745 help 746 Select this option to enable GPIO driver for the Diolan DLN2 747 board. 748 749 This driver can also be built as a module. If so, the module 750 will be called gpio-dln2. 751 752config GPIO_JANZ_TTL 753 tristate "Janz VMOD-TTL Digital IO Module" 754 depends on MFD_JANZ_CMODIO 755 help 756 This enables support for the Janz VMOD-TTL Digital IO module. 757 This driver provides support for driving the pins in output 758 mode only. Input mode is not supported. 759 760config GPIO_KEMPLD 761 tristate "Kontron ETX / COMexpress GPIO" 762 depends on MFD_KEMPLD 763 help 764 This enables support for the PLD GPIO interface on some Kontron ETX 765 and COMexpress (ETXexpress) modules. 766 767 This driver can also be built as a module. If so, the module will be 768 called gpio-kempld. 769 770config GPIO_LP3943 771 tristate "TI/National Semiconductor LP3943 GPIO expander" 772 depends on MFD_LP3943 773 help 774 GPIO driver for LP3943 MFD. 775 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 776 Open drain outputs are required for this usage. 777 778config GPIO_MSIC 779 bool "Intel MSIC mixed signal gpio support" 780 depends on MFD_INTEL_MSIC 781 help 782 Enable support for GPIO on intel MSIC controllers found in 783 intel MID devices 784 785config GPIO_PALMAS 786 bool "TI PALMAS series PMICs GPIO" 787 depends on MFD_PALMAS 788 help 789 Select this option to enable GPIO driver for the TI PALMAS 790 series chip family. 791 792config GPIO_RC5T583 793 bool "RICOH RC5T583 GPIO" 794 depends on MFD_RC5T583 795 help 796 Select this option to enable GPIO driver for the Ricoh RC5T583 797 chip family. 798 This driver provides the support for driving/reading the gpio pins 799 of RC5T583 device through standard gpio library. 800 801config GPIO_STMPE 802 bool "STMPE GPIOs" 803 depends on MFD_STMPE 804 depends on OF_GPIO 805 select GPIOLIB_IRQCHIP 806 help 807 This enables support for the GPIOs found on the STMPE I/O 808 Expanders. 809 810config GPIO_TC3589X 811 bool "TC3589X GPIOs" 812 depends on MFD_TC3589X 813 depends on OF_GPIO 814 select GPIOLIB_IRQCHIP 815 help 816 This enables support for the GPIOs found on the TC3589X 817 I/O Expander. 818 819config GPIO_TIMBERDALE 820 bool "Support for timberdale GPIO IP" 821 depends on MFD_TIMBERDALE 822 ---help--- 823 Add support for the GPIO IP in the timberdale FPGA. 824 825config GPIO_TPS6586X 826 bool "TPS6586X GPIO" 827 depends on MFD_TPS6586X 828 help 829 Select this option to enable GPIO driver for the TPS6586X 830 chip family. 831 832config GPIO_TPS65910 833 bool "TPS65910 GPIO" 834 depends on MFD_TPS65910 835 help 836 Select this option to enable GPIO driver for the TPS65910 837 chip family. 838 839config GPIO_TPS65912 840 tristate "TI TPS65912 GPIO" 841 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 842 help 843 This driver supports TPS65912 gpio chip 844 845config GPIO_TWL4030 846 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 847 depends on TWL4030_CORE 848 help 849 Say yes here to access the GPIO signals of various multi-function 850 power management chips from Texas Instruments. 851 852config GPIO_TWL6040 853 tristate "TWL6040 GPO" 854 depends on TWL6040_CORE 855 help 856 Say yes here to access the GPO signals of twl6040 857 audio chip from Texas Instruments. 858 859config GPIO_UCB1400 860 tristate "Philips UCB1400 GPIO" 861 depends on UCB1400_CORE 862 help 863 This enables support for the Philips UCB1400 GPIO pins. 864 The UCB1400 is an AC97 audio codec. 865 866config GPIO_WM831X 867 tristate "WM831x GPIOs" 868 depends on MFD_WM831X 869 help 870 Say yes here to access the GPIO signals of WM831x power management 871 chips from Wolfson Microelectronics. 872 873config GPIO_WM8350 874 tristate "WM8350 GPIOs" 875 depends on MFD_WM8350 876 help 877 Say yes here to access the GPIO signals of WM8350 power management 878 chips from Wolfson Microelectronics. 879 880config GPIO_WM8994 881 tristate "WM8994 GPIOs" 882 depends on MFD_WM8994 883 help 884 Say yes here to access the GPIO signals of WM8994 audio hub 885 CODECs from Wolfson Microelectronics. 886 887endmenu 888 889menu "PCI GPIO expanders" 890 depends on PCI 891 892config GPIO_AMD8111 893 tristate "AMD 8111 GPIO driver" 894 depends on PCI 895 help 896 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 897 898 Note, that usually system firmware/ACPI handles GPIO pins on their 899 own and users might easily break their systems with uncarefull usage 900 of this driver! 901 902 If unsure, say N 903 904config GPIO_BT8XX 905 tristate "BT8XX GPIO abuser" 906 depends on PCI && VIDEO_BT848=n 907 help 908 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 909 as a cheap PCI GPIO card. 910 911 This chip can be found on Miro, Hauppauge and STB TV-cards. 912 913 The card needs to be physically altered for using it as a 914 GPIO card. For more information on how to build a GPIO card 915 from a BT8xx TV card, see the documentation file at 916 Documentation/bt8xxgpio.txt 917 918 If unsure, say N. 919 920config GPIO_INTEL_MID 921 bool "Intel Mid GPIO support" 922 depends on PCI && X86 923 select GPIOLIB_IRQCHIP 924 help 925 Say Y here to support Intel Mid GPIO. 926 927config GPIO_ML_IOH 928 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 929 depends on PCI 930 select GENERIC_IRQ_CHIP 931 help 932 ML7213 is companion chip for Intel Atom E6xx series. 933 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 934 Hub) which is for IVI(In-Vehicle Infotainment) use. 935 This driver can access the IOH's GPIO device. 936 937config GPIO_PCH 938 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 939 depends on PCI && (X86_32 || COMPILE_TEST) 940 select GENERIC_IRQ_CHIP 941 help 942 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 943 which is an IOH(Input/Output Hub) for x86 embedded processor. 944 This driver can access PCH GPIO device. 945 946 This driver also can be used for LAPIS Semiconductor IOH(Input/ 947 Output Hub), ML7223 and ML7831. 948 ML7223 IOH is for MP(Media Phone) use. 949 ML7831 IOH is for general purpose use. 950 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 951 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 952 953config GPIO_RDC321X 954 tristate "RDC R-321x GPIO support" 955 depends on PCI 956 select MFD_CORE 957 select MFD_RDC321X 958 help 959 Support for the RDC R321x SoC GPIOs over southbridge 960 PCI configuration space. 961 962config GPIO_SODAVILLE 963 bool "Intel Sodaville GPIO support" 964 depends on X86 && PCI && OF 965 select GPIO_GENERIC 966 select GENERIC_IRQ_CHIP 967 help 968 Say Y here to support Intel Sodaville GPIO. 969 970endmenu 971 972menu "SPI GPIO expanders" 973 depends on SPI_MASTER 974 975config GPIO_74X164 976 tristate "74x164 serial-in/parallel-out 8-bits shift register" 977 depends on SPI_MASTER && OF 978 help 979 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 980 shift registers. This driver can be used to provide access 981 to more gpio outputs. 982 983config GPIO_MAX7301 984 tristate "Maxim MAX7301 GPIO expander" 985 depends on SPI_MASTER 986 select GPIO_MAX730X 987 help 988 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 989 990config GPIO_MCP23S08 991 tristate "Microchip MCP23xxx I/O expander" 992 depends on (SPI_MASTER && !I2C) || I2C 993 help 994 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 995 I/O expanders. 996 This provides a GPIO interface supporting inputs and outputs. 997 The I2C versions of the chips can be used as interrupt-controller. 998 999config GPIO_MC33880 1000 tristate "Freescale MC33880 high-side/low-side switch" 1001 depends on SPI_MASTER 1002 help 1003 SPI driver for Freescale MC33880 high-side/low-side switch. 1004 This provides GPIO interface supporting inputs and outputs. 1005 1006config GPIO_ZX 1007 bool "ZTE ZX GPIO support" 1008 select GPIOLIB_IRQCHIP 1009 help 1010 Say yes here to support the GPIO device on ZTE ZX SoCs. 1011 1012endmenu 1013 1014menu "USB GPIO expanders" 1015 depends on USB 1016 1017config GPIO_VIPERBOARD 1018 tristate "Viperboard GPIO a & b support" 1019 depends on MFD_VIPERBOARD && USB 1020 help 1021 Say yes here to access the GPIO signals of Nano River 1022 Technologies Viperboard. There are two GPIO chips on the 1023 board: gpioa and gpiob. 1024 See viperboard API specification and Nano 1025 River Tech's viperboard.h for detailed meaning 1026 of the module parameters. 1027 1028endmenu 1029 1030endif 1031