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 select GPIOLIB_IRQCHIP 175 help 176 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 177 178config GPIO_F7188X 179 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 180 depends on X86 181 help 182 This option enables support for GPIOs found on Fintek Super-I/O 183 chips F71869, F71869A, F71882FG and F71889F. 184 185 To compile this driver as a module, choose M here: the module will 186 be called f7188x-gpio. 187 188config GPIO_GE_FPGA 189 bool "GE FPGA based GPIO" 190 depends on GE_FPGA 191 select GPIO_GENERIC 192 help 193 Support for common GPIO functionality provided on some GE Single Board 194 Computers. 195 196 This driver provides basic support (configure as input or output, read 197 and write pin state) for GPIO implemented in a number of GE single 198 board computers. 199 200config GPIO_GENERIC_PLATFORM 201 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 202 select GPIO_GENERIC 203 help 204 Say yes here to support basic platform_device memory-mapped GPIO controllers. 205 206config GPIO_GRGPIO 207 tristate "Aeroflex Gaisler GRGPIO support" 208 depends on OF 209 select GPIO_GENERIC 210 select IRQ_DOMAIN 211 help 212 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 213 VHDL IP core library. 214 215config GPIO_ICH 216 tristate "Intel ICH GPIO" 217 depends on PCI && X86 218 select MFD_CORE 219 select LPC_ICH 220 help 221 Say yes here to support the GPIO functionality of a number of Intel 222 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 223 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 224 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 225 226 If unsure, say N. 227 228config GPIO_IOP 229 tristate "Intel IOP GPIO" 230 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 231 help 232 Say yes here to support the GPIO functionality of a number of Intel 233 IOP32X or IOP33X. 234 235 If unsure, say N. 236 237config GPIO_IT8761E 238 tristate "IT8761E GPIO support" 239 depends on X86 # unconditional access to IO space. 240 help 241 Say yes here to support GPIO functionality of IT8761E super I/O chip. 242 243config GPIO_LOONGSON 244 bool "Loongson-2/3 GPIO support" 245 depends on CPU_LOONGSON2 || CPU_LOONGSON3 246 help 247 driver for GPIO functionality on Loongson-2F/3A/3B processors. 248 249config GPIO_LPC18XX 250 bool "NXP LPC18XX/43XX GPIO support" 251 default y if ARCH_LPC18XX 252 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 253 help 254 Select this option to enable GPIO driver for 255 NXP LPC18XX/43XX devices. 256 257config GPIO_LYNXPOINT 258 tristate "Intel Lynxpoint GPIO support" 259 depends on ACPI && X86 260 select GPIOLIB_IRQCHIP 261 help 262 driver for GPIO functionality on Intel Lynxpoint PCH chipset 263 Requires ACPI device enumeration code to set up a platform device. 264 265config GPIO_MB86S7X 266 bool "GPIO support for Fujitsu MB86S7x Platforms" 267 depends on ARCH_MB86S7X 268 help 269 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 270 271config GPIO_MM_LANTIQ 272 bool "Lantiq Memory mapped GPIOs" 273 depends on LANTIQ && SOC_XWAY 274 help 275 This enables support for memory mapped GPIOs on the External Bus Unit 276 (EBU) found on Lantiq SoCs. The gpios are output only as they are 277 created by attaching a 16bit latch to the bus. 278 279config GPIO_MOXART 280 bool "MOXART GPIO support" 281 depends on ARCH_MOXART 282 select GPIO_GENERIC 283 help 284 Select this option to enable GPIO driver for 285 MOXA ART SoC devices. 286 287config GPIO_MPC5200 288 def_bool y 289 depends on PPC_MPC52xx 290 291config GPIO_MPC8XXX 292 bool "MPC512x/MPC8xxx GPIO support" 293 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 294 FSL_SOC_BOOKE || PPC_86xx 295 help 296 Say Y here if you're going to use hardware that connects to the 297 MPC512x/831x/834x/837x/8572/8610 GPIOs. 298 299config GPIO_MSM_V2 300 tristate "Qualcomm MSM GPIO v2" 301 depends on GPIOLIB && OF && ARCH_QCOM 302 help 303 Say yes here to support the GPIO interface on ARM v7 based 304 Qualcomm MSM chips. Most of the pins on the MSM can be 305 selected for GPIO, and are controlled by this driver. 306 307config GPIO_MVEBU 308 def_bool y 309 depends on PLAT_ORION 310 depends on OF 311 select GENERIC_IRQ_CHIP 312 313config GPIO_MXC 314 def_bool y 315 depends on ARCH_MXC 316 select GPIO_GENERIC 317 select GENERIC_IRQ_CHIP 318 319config GPIO_MXS 320 def_bool y 321 depends on ARCH_MXS 322 select GPIO_GENERIC 323 select GENERIC_IRQ_CHIP 324 325config GPIO_OCTEON 326 tristate "Cavium OCTEON GPIO" 327 depends on GPIOLIB && CAVIUM_OCTEON_SOC 328 default y 329 help 330 Say yes here to support the on-chip GPIO lines on the OCTEON 331 family of SOCs. 332 333config GPIO_OMAP 334 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 335 default y if ARCH_OMAP 336 depends on ARM 337 select GENERIC_IRQ_CHIP 338 select GPIOLIB_IRQCHIP 339 help 340 Say yes here to enable GPIO support for TI OMAP SoCs. 341 342config GPIO_PL061 343 bool "PrimeCell PL061 GPIO support" 344 depends on ARM_AMBA 345 select IRQ_DOMAIN 346 select GPIOLIB_IRQCHIP 347 help 348 Say yes here to support the PrimeCell PL061 GPIO device 349 350config GPIO_PXA 351 bool "PXA GPIO support" 352 depends on ARCH_PXA || ARCH_MMP 353 help 354 Say yes here to support the PXA GPIO device 355 356config GPIO_RCAR 357 tristate "Renesas R-Car GPIO" 358 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST) 359 select GPIOLIB_IRQCHIP 360 help 361 Say yes here to support GPIO on Renesas R-Car SoCs. 362 363config GPIO_SAMSUNG 364 bool 365 depends on PLAT_SAMSUNG 366 help 367 Legacy GPIO support. Use only for platforms without support for 368 pinctrl. 369 370config GPIO_SCH 371 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 372 depends on PCI && X86 373 select MFD_CORE 374 select LPC_SCH 375 help 376 Say yes here to support GPIO interface on Intel Poulsbo SCH, 377 Intel Tunnel Creek processor, Intel Centerton processor or 378 Intel Quark X1000 SoC. 379 380 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 381 powered by the core power rail and are turned off during sleep 382 modes (S3 and higher). The remaining four GPIOs are powered by 383 the Intel SCH suspend power supply. These GPIOs remain 384 active during S3. The suspend powered GPIOs can be used to wake the 385 system from the Suspend-to-RAM state. 386 387 The Intel Tunnel Creek processor has 5 GPIOs powered by the 388 core power rail and 9 from suspend power supply. 389 390 The Intel Centerton processor has a total of 30 GPIO pins. 391 Twenty-one are powered by the core power rail and 9 from the 392 suspend power supply. 393 394 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 395 power well and 6 from the suspend power well. 396 397config GPIO_SCH311X 398 tristate "SMSC SCH311x SuperI/O GPIO" 399 help 400 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 401 SCH3116 "Super I/O" chipsets. 402 403 To compile this driver as a module, choose M here: the module will 404 be called gpio-sch311x. 405 406config GPIO_SPEAR_SPICS 407 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 408 depends on PLAT_SPEAR 409 select GENERIC_IRQ_CHIP 410 help 411 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 412 413config GPIO_STA2X11 414 bool "STA2x11/ConneXt GPIO support" 415 depends on MFD_STA2X11 416 select GENERIC_IRQ_CHIP 417 help 418 Say yes here to support the STA2x11/ConneXt GPIO device. 419 The GPIO module has 128 GPIO pins with alternate functions. 420 421config GPIO_STP_XWAY 422 bool "XWAY STP GPIOs" 423 depends on SOC_XWAY 424 help 425 This enables support for the Serial To Parallel (STP) unit found on 426 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 427 that can be up to 24 bit. This peripheral is aimed at driving leds. 428 Some of the gpios/leds can be auto updated by the soc with dsl and 429 phy status. 430 431config GPIO_SYSCON 432 tristate "GPIO based on SYSCON" 433 depends on MFD_SYSCON && OF 434 help 435 Say yes here to support GPIO functionality though SYSCON driver. 436 437config GPIO_TB10X 438 bool 439 select GENERIC_IRQ_CHIP 440 select OF_GPIO 441 442config GPIO_TS5500 443 tristate "TS-5500 DIO blocks and compatibles" 444 depends on TS5500 || COMPILE_TEST 445 help 446 This driver supports Digital I/O exposed by pin blocks found on some 447 Technologic Systems platforms. It includes, but is not limited to, 3 448 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 449 LCD port. 450 451config GPIO_TZ1090 452 bool "Toumaz Xenif TZ1090 GPIO support" 453 depends on SOC_TZ1090 454 select GENERIC_IRQ_CHIP 455 default y 456 help 457 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 458 459config GPIO_TZ1090_PDC 460 bool "Toumaz Xenif TZ1090 PDC GPIO support" 461 depends on SOC_TZ1090 462 default y 463 help 464 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 465 466config GPIO_VF610 467 def_bool y 468 depends on ARCH_MXC && SOC_VF610 469 select GPIOLIB_IRQCHIP 470 help 471 Say yes here to support Vybrid vf610 GPIOs. 472 473config GPIO_VR41XX 474 tristate "NEC VR4100 series General-purpose I/O Uint support" 475 depends on CPU_VR41XX 476 help 477 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 478 479config GPIO_VX855 480 tristate "VIA VX855/VX875 GPIO" 481 depends on PCI 482 select MFD_CORE 483 select MFD_VX855 484 help 485 Support access to the VX855/VX875 GPIO lines through the gpio library. 486 487 This driver provides common support for accessing the device, 488 additional drivers must be enabled in order to use the 489 functionality of the device. 490 491config GPIO_XGENE 492 bool "APM X-Gene GPIO controller support" 493 depends on ARM64 && OF_GPIO 494 help 495 This driver is to support the GPIO block within the APM X-Gene SoC 496 platform's generic flash controller. The GPIO pins are muxed with 497 the generic flash controller's address and data pins. Say yes 498 here to enable the GFC GPIO functionality. 499 500config GPIO_XGENE_SB 501 tristate "APM X-Gene GPIO standby controller support" 502 depends on ARCH_XGENE && OF_GPIO 503 select GPIO_GENERIC 504 help 505 This driver supports the GPIO block within the APM X-Gene 506 Standby Domain. Say yes here to enable the GPIO functionality. 507 508config GPIO_XILINX 509 tristate "Xilinx GPIO support" 510 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 511 help 512 Say yes here to support the Xilinx FPGA GPIO device 513 514config GPIO_XLP 515 tristate "Netlogic XLP GPIO support" 516 depends on CPU_XLP 517 select GPIOLIB_IRQCHIP 518 help 519 This driver provides support for GPIO interface on Netlogic XLP MIPS64 520 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 521 XLP9XX and XLP5XX. 522 523 If unsure, say N. 524 525config GPIO_XTENSA 526 bool "Xtensa GPIO32 support" 527 depends on XTENSA 528 depends on HAVE_XTENSA_GPIO32 529 depends on !SMP 530 help 531 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 532 and EXPSTATE (output) ports 533 534config GPIO_ZEVIO 535 bool "LSI ZEVIO SoC memory mapped GPIOs" 536 depends on ARM && OF_GPIO 537 help 538 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 539 540config GPIO_ZYNQ 541 tristate "Xilinx Zynq GPIO support" 542 depends on ARCH_ZYNQ || ARCH_ZYNQMP 543 select GPIOLIB_IRQCHIP 544 help 545 Say yes here to support Xilinx Zynq GPIO controller. 546 547endmenu 548 549menu "I2C GPIO expanders" 550 depends on I2C 551 552config GPIO_ADP5588 553 tristate "ADP5588 I2C GPIO expander" 554 depends on I2C 555 help 556 This option enables support for 18 GPIOs found 557 on Analog Devices ADP5588 GPIO Expanders. 558 559config GPIO_ADP5588_IRQ 560 bool "Interrupt controller support for ADP5588" 561 depends on GPIO_ADP5588=y 562 help 563 Say yes here to enable the adp5588 to be used as an interrupt 564 controller. It requires the driver to be built in the kernel. 565 566config GPIO_ADNP 567 tristate "Avionic Design N-bit GPIO expander" 568 depends on I2C && OF_GPIO 569 select GPIOLIB_IRQCHIP 570 help 571 This option enables support for N GPIOs found on Avionic Design 572 I2C GPIO expanders. The register space will be extended by powers 573 of two, so the controller will need to accommodate for that. For 574 example: if a controller provides 48 pins, 6 registers will be 575 enough to represent all pins, but the driver will assume a 576 register layout for 64 pins (8 registers). 577 578config GPIO_MAX7300 579 tristate "Maxim MAX7300 GPIO expander" 580 depends on I2C 581 select GPIO_MAX730X 582 help 583 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 584 585config GPIO_MAX732X 586 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 587 depends on I2C 588 help 589 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 590 Port Expanders. Each IO port on these chips has a fixed role of 591 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 592 Input and Output (designed by 'P'). The combinations are listed 593 below: 594 595 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 596 max7322 (4I4O), max7323 (4P4O) 597 598 16 bits: max7324 (8I8O), max7325 (8P8O), 599 max7326 (4I12O), max7327 (4P12O) 600 601 Board setup code must specify the model to use, and the start 602 number for these GPIOs. 603 604config GPIO_MAX732X_IRQ 605 bool "Interrupt controller support for MAX732x" 606 depends on GPIO_MAX732X=y 607 select GPIOLIB_IRQCHIP 608 help 609 Say yes here to enable the max732x to be used as an interrupt 610 controller. It requires the driver to be built in the kernel. 611 612config GPIO_MC9S08DZ60 613 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 614 depends on I2C=y && MACH_MX35_3DS 615 help 616 Select this to enable the MC9S08DZ60 GPIO driver 617 618config GPIO_PCA953X 619 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 620 depends on I2C 621 help 622 Say yes here to provide access to several register-oriented 623 SMBus I/O expanders, made mostly by NXP or TI. Compatible 624 models include: 625 626 4 bits: pca9536, pca9537 627 628 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 629 pca9556, pca9557, pca9574, tca6408, xra1202 630 631 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 632 tca6416 633 634 24 bits: tca6424 635 636 40 bits: pca9505, pca9698 637 638config GPIO_PCA953X_IRQ 639 bool "Interrupt controller support for PCA953x" 640 depends on GPIO_PCA953X=y 641 select GPIOLIB_IRQCHIP 642 help 643 Say yes here to enable the pca953x to be used as an interrupt 644 controller. It requires the driver to be built in the kernel. 645 646config GPIO_PCF857X 647 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 648 depends on I2C 649 select GPIOLIB_IRQCHIP 650 select IRQ_DOMAIN 651 help 652 Say yes here to provide access to most "quasi-bidirectional" I2C 653 GPIO expanders used for additional digital outputs or inputs. 654 Most of these parts are from NXP, though TI is a second source for 655 some of them. Compatible models include: 656 657 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 658 pca9670, pca9672, pca9674, pca9674a, 659 max7328, max7329 660 661 16 bits: pcf8575, pcf8575c, pca8575, 662 pca9671, pca9673, pca9675 663 664 Your board setup code will need to declare the expanders in 665 use, and assign numbers to the GPIOs they expose. Those GPIOs 666 can then be used from drivers and other kernel code, just like 667 other GPIOs, but only accessible from task contexts. 668 669 This driver provides an in-kernel interface to those GPIOs using 670 platform-neutral GPIO calls. 671 672config GPIO_SX150X 673 bool "Semtech SX150x I2C GPIO expander" 674 depends on I2C=y 675 select GPIOLIB_IRQCHIP 676 default n 677 help 678 Say yes here to provide support for Semtech SX150-series I2C 679 GPIO expanders. Compatible models include: 680 681 8 bits: sx1508q 682 16 bits: sx1509q 683 684endmenu 685 686menu "MFD GPIO expanders" 687 688config GPIO_ADP5520 689 tristate "GPIO Support for ADP5520 PMIC" 690 depends on PMIC_ADP5520 691 help 692 This option enables support for on-chip GPIO found 693 on Analog Devices ADP5520 PMICs. 694 695config GPIO_ARIZONA 696 tristate "Wolfson Microelectronics Arizona class devices" 697 depends on MFD_ARIZONA 698 help 699 Support for GPIOs on Wolfson Arizona class devices. 700 701config GPIO_CRYSTAL_COVE 702 tristate "GPIO support for Crystal Cove PMIC" 703 depends on INTEL_SOC_PMIC 704 select GPIOLIB_IRQCHIP 705 help 706 Support for GPIO pins on Crystal Cove PMIC. 707 708 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 709 inside. 710 711 This driver can also be built as a module. If so, the module will be 712 called gpio-crystalcove. 713 714config GPIO_CS5535 715 tristate "AMD CS5535/CS5536 GPIO support" 716 depends on MFD_CS5535 717 help 718 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 719 can be used for quite a number of things. The CS5535/6 is found on 720 AMD Geode and Lemote Yeeloong devices. 721 722 If unsure, say N. 723 724config GPIO_DA9052 725 tristate "Dialog DA9052 GPIO" 726 depends on PMIC_DA9052 727 help 728 Say yes here to enable the GPIO driver for the DA9052 chip. 729 730config GPIO_DA9055 731 tristate "Dialog Semiconductor DA9055 GPIO" 732 depends on MFD_DA9055 733 help 734 Say yes here to enable the GPIO driver for the DA9055 chip. 735 736 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 737 be controller by this driver. 738 739 If driver is built as a module it will be called gpio-da9055. 740 741config GPIO_DLN2 742 tristate "Diolan DLN2 GPIO support" 743 depends on MFD_DLN2 744 select GPIOLIB_IRQCHIP 745 746 help 747 Select this option to enable GPIO driver for the Diolan DLN2 748 board. 749 750 This driver can also be built as a module. If so, the module 751 will be called gpio-dln2. 752 753config GPIO_JANZ_TTL 754 tristate "Janz VMOD-TTL Digital IO Module" 755 depends on MFD_JANZ_CMODIO 756 help 757 This enables support for the Janz VMOD-TTL Digital IO module. 758 This driver provides support for driving the pins in output 759 mode only. Input mode is not supported. 760 761config GPIO_KEMPLD 762 tristate "Kontron ETX / COMexpress GPIO" 763 depends on MFD_KEMPLD 764 help 765 This enables support for the PLD GPIO interface on some Kontron ETX 766 and COMexpress (ETXexpress) modules. 767 768 This driver can also be built as a module. If so, the module will be 769 called gpio-kempld. 770 771config GPIO_LP3943 772 tristate "TI/National Semiconductor LP3943 GPIO expander" 773 depends on MFD_LP3943 774 help 775 GPIO driver for LP3943 MFD. 776 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 777 Open drain outputs are required for this usage. 778 779config GPIO_MSIC 780 bool "Intel MSIC mixed signal gpio support" 781 depends on MFD_INTEL_MSIC 782 help 783 Enable support for GPIO on intel MSIC controllers found in 784 intel MID devices 785 786config GPIO_PALMAS 787 bool "TI PALMAS series PMICs GPIO" 788 depends on MFD_PALMAS 789 help 790 Select this option to enable GPIO driver for the TI PALMAS 791 series chip family. 792 793config GPIO_RC5T583 794 bool "RICOH RC5T583 GPIO" 795 depends on MFD_RC5T583 796 help 797 Select this option to enable GPIO driver for the Ricoh RC5T583 798 chip family. 799 This driver provides the support for driving/reading the gpio pins 800 of RC5T583 device through standard gpio library. 801 802config GPIO_STMPE 803 bool "STMPE GPIOs" 804 depends on MFD_STMPE 805 depends on OF_GPIO 806 select GPIOLIB_IRQCHIP 807 help 808 This enables support for the GPIOs found on the STMPE I/O 809 Expanders. 810 811config GPIO_TC3589X 812 bool "TC3589X GPIOs" 813 depends on MFD_TC3589X 814 depends on OF_GPIO 815 select GPIOLIB_IRQCHIP 816 help 817 This enables support for the GPIOs found on the TC3589X 818 I/O Expander. 819 820config GPIO_TIMBERDALE 821 bool "Support for timberdale GPIO IP" 822 depends on MFD_TIMBERDALE 823 ---help--- 824 Add support for the GPIO IP in the timberdale FPGA. 825 826config GPIO_TPS6586X 827 bool "TPS6586X GPIO" 828 depends on MFD_TPS6586X 829 help 830 Select this option to enable GPIO driver for the TPS6586X 831 chip family. 832 833config GPIO_TPS65910 834 bool "TPS65910 GPIO" 835 depends on MFD_TPS65910 836 help 837 Select this option to enable GPIO driver for the TPS65910 838 chip family. 839 840config GPIO_TPS65912 841 tristate "TI TPS65912 GPIO" 842 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 843 help 844 This driver supports TPS65912 gpio chip 845 846config GPIO_TWL4030 847 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 848 depends on TWL4030_CORE 849 help 850 Say yes here to access the GPIO signals of various multi-function 851 power management chips from Texas Instruments. 852 853config GPIO_TWL6040 854 tristate "TWL6040 GPO" 855 depends on TWL6040_CORE 856 help 857 Say yes here to access the GPO signals of twl6040 858 audio chip from Texas Instruments. 859 860config GPIO_UCB1400 861 tristate "Philips UCB1400 GPIO" 862 depends on UCB1400_CORE 863 help 864 This enables support for the Philips UCB1400 GPIO pins. 865 The UCB1400 is an AC97 audio codec. 866 867config GPIO_WM831X 868 tristate "WM831x GPIOs" 869 depends on MFD_WM831X 870 help 871 Say yes here to access the GPIO signals of WM831x power management 872 chips from Wolfson Microelectronics. 873 874config GPIO_WM8350 875 tristate "WM8350 GPIOs" 876 depends on MFD_WM8350 877 help 878 Say yes here to access the GPIO signals of WM8350 power management 879 chips from Wolfson Microelectronics. 880 881config GPIO_WM8994 882 tristate "WM8994 GPIOs" 883 depends on MFD_WM8994 884 help 885 Say yes here to access the GPIO signals of WM8994 audio hub 886 CODECs from Wolfson Microelectronics. 887 888endmenu 889 890menu "PCI GPIO expanders" 891 depends on PCI 892 893config GPIO_AMD8111 894 tristate "AMD 8111 GPIO driver" 895 depends on PCI 896 help 897 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 898 899 Note, that usually system firmware/ACPI handles GPIO pins on their 900 own and users might easily break their systems with uncarefull usage 901 of this driver! 902 903 If unsure, say N 904 905config GPIO_BT8XX 906 tristate "BT8XX GPIO abuser" 907 depends on PCI && VIDEO_BT848=n 908 help 909 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 910 as a cheap PCI GPIO card. 911 912 This chip can be found on Miro, Hauppauge and STB TV-cards. 913 914 The card needs to be physically altered for using it as a 915 GPIO card. For more information on how to build a GPIO card 916 from a BT8xx TV card, see the documentation file at 917 Documentation/bt8xxgpio.txt 918 919 If unsure, say N. 920 921config GPIO_INTEL_MID 922 bool "Intel Mid GPIO support" 923 depends on PCI && X86 924 select GPIOLIB_IRQCHIP 925 help 926 Say Y here to support Intel Mid GPIO. 927 928config GPIO_ML_IOH 929 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 930 depends on PCI 931 select GENERIC_IRQ_CHIP 932 help 933 ML7213 is companion chip for Intel Atom E6xx series. 934 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 935 Hub) which is for IVI(In-Vehicle Infotainment) use. 936 This driver can access the IOH's GPIO device. 937 938config GPIO_PCH 939 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 940 depends on PCI && (X86_32 || COMPILE_TEST) 941 select GENERIC_IRQ_CHIP 942 help 943 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 944 which is an IOH(Input/Output Hub) for x86 embedded processor. 945 This driver can access PCH GPIO device. 946 947 This driver also can be used for LAPIS Semiconductor IOH(Input/ 948 Output Hub), ML7223 and ML7831. 949 ML7223 IOH is for MP(Media Phone) use. 950 ML7831 IOH is for general purpose use. 951 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 952 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 953 954config GPIO_RDC321X 955 tristate "RDC R-321x GPIO support" 956 depends on PCI 957 select MFD_CORE 958 select MFD_RDC321X 959 help 960 Support for the RDC R321x SoC GPIOs over southbridge 961 PCI configuration space. 962 963config GPIO_SODAVILLE 964 bool "Intel Sodaville GPIO support" 965 depends on X86 && PCI && OF 966 select GPIO_GENERIC 967 select GENERIC_IRQ_CHIP 968 help 969 Say Y here to support Intel Sodaville GPIO. 970 971endmenu 972 973menu "SPI GPIO expanders" 974 depends on SPI_MASTER 975 976config GPIO_74X164 977 tristate "74x164 serial-in/parallel-out 8-bits shift register" 978 depends on SPI_MASTER && OF 979 help 980 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 981 shift registers. This driver can be used to provide access 982 to more gpio outputs. 983 984config GPIO_MAX7301 985 tristate "Maxim MAX7301 GPIO expander" 986 depends on SPI_MASTER 987 select GPIO_MAX730X 988 help 989 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 990 991config GPIO_MCP23S08 992 tristate "Microchip MCP23xxx I/O expander" 993 depends on (SPI_MASTER && !I2C) || I2C 994 help 995 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 996 I/O expanders. 997 This provides a GPIO interface supporting inputs and outputs. 998 The I2C versions of the chips can be used as interrupt-controller. 999 1000config GPIO_MC33880 1001 tristate "Freescale MC33880 high-side/low-side switch" 1002 depends on SPI_MASTER 1003 help 1004 SPI driver for Freescale MC33880 high-side/low-side switch. 1005 This provides GPIO interface supporting inputs and outputs. 1006 1007config GPIO_ZX 1008 bool "ZTE ZX GPIO support" 1009 select GPIOLIB_IRQCHIP 1010 help 1011 Say yes here to support the GPIO device on ZTE ZX SoCs. 1012 1013endmenu 1014 1015menu "USB GPIO expanders" 1016 depends on USB 1017 1018config GPIO_VIPERBOARD 1019 tristate "Viperboard GPIO a & b support" 1020 depends on MFD_VIPERBOARD && USB 1021 help 1022 Say yes here to access the GPIO signals of Nano River 1023 Technologies Viperboard. There are two GPIO chips on the 1024 board: gpioa and gpiob. 1025 See viperboard API specification and Nano 1026 River Tech's viperboard.h for detailed meaning 1027 of the module parameters. 1028 1029endmenu 1030 1031endif 1032