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 select GPIOLIB_IRQCHIP 134 help 135 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 136 137config GPIO_CLPS711X 138 tristate "CLPS711X GPIO support" 139 depends on ARCH_CLPS711X || COMPILE_TEST 140 select GPIO_GENERIC 141 help 142 Say yes here to support GPIO on CLPS711X SoCs. 143 144config GPIO_DAVINCI 145 bool "TI Davinci/Keystone GPIO support" 146 default y if ARCH_DAVINCI 147 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 148 help 149 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 150 151config GPIO_DWAPB 152 tristate "Synopsys DesignWare APB GPIO driver" 153 select GPIO_GENERIC 154 select GENERIC_IRQ_CHIP 155 help 156 Say Y or M here to build support for the Synopsys DesignWare APB 157 GPIO block. 158 159config GPIO_EM 160 tristate "Emma Mobile GPIO" 161 depends on ARM && OF_GPIO 162 help 163 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 164 165config GPIO_EP93XX 166 def_bool y 167 depends on ARCH_EP93XX 168 select GPIO_GENERIC 169 170config GPIO_ETRAXFS 171 bool "Axis ETRAX FS General I/O" 172 depends on CRIS || COMPILE_TEST 173 depends on OF 174 select GPIO_GENERIC 175 select GPIOLIB_IRQCHIP 176 help 177 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 178 179config GPIO_F7188X 180 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 181 depends on X86 182 help 183 This option enables support for GPIOs found on Fintek Super-I/O 184 chips F71869, F71869A, F71882FG and F71889F. 185 186 To compile this driver as a module, choose M here: the module will 187 be called f7188x-gpio. 188 189config GPIO_GE_FPGA 190 bool "GE FPGA based GPIO" 191 depends on GE_FPGA 192 select GPIO_GENERIC 193 help 194 Support for common GPIO functionality provided on some GE Single Board 195 Computers. 196 197 This driver provides basic support (configure as input or output, read 198 and write pin state) for GPIO implemented in a number of GE single 199 board computers. 200 201config GPIO_GENERIC_PLATFORM 202 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 203 select GPIO_GENERIC 204 help 205 Say yes here to support basic platform_device memory-mapped GPIO controllers. 206 207config GPIO_GRGPIO 208 tristate "Aeroflex Gaisler GRGPIO support" 209 depends on OF 210 select GPIO_GENERIC 211 select IRQ_DOMAIN 212 help 213 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 214 VHDL IP core library. 215 216config GPIO_ICH 217 tristate "Intel ICH GPIO" 218 depends on PCI && X86 219 select MFD_CORE 220 select LPC_ICH 221 help 222 Say yes here to support the GPIO functionality of a number of Intel 223 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 224 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 225 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 226 227 If unsure, say N. 228 229config GPIO_IOP 230 tristate "Intel IOP GPIO" 231 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 232 help 233 Say yes here to support the GPIO functionality of a number of Intel 234 IOP32X or IOP33X. 235 236 If unsure, say N. 237 238config GPIO_IT8761E 239 tristate "IT8761E GPIO support" 240 depends on X86 # unconditional access to IO space. 241 help 242 Say yes here to support GPIO functionality of IT8761E super I/O chip. 243 244config GPIO_LOONGSON 245 bool "Loongson-2/3 GPIO support" 246 depends on CPU_LOONGSON2 || CPU_LOONGSON3 247 help 248 driver for GPIO functionality on Loongson-2F/3A/3B processors. 249 250config GPIO_LPC18XX 251 bool "NXP LPC18XX/43XX GPIO support" 252 default y if ARCH_LPC18XX 253 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 254 help 255 Select this option to enable GPIO driver for 256 NXP LPC18XX/43XX devices. 257 258config GPIO_LYNXPOINT 259 tristate "Intel Lynxpoint GPIO support" 260 depends on ACPI && X86 261 select GPIOLIB_IRQCHIP 262 help 263 driver for GPIO functionality on Intel Lynxpoint PCH chipset 264 Requires ACPI device enumeration code to set up a platform device. 265 266config GPIO_MB86S7X 267 bool "GPIO support for Fujitsu MB86S7x Platforms" 268 depends on ARCH_MB86S7X 269 help 270 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 271 272config GPIO_MM_LANTIQ 273 bool "Lantiq Memory mapped GPIOs" 274 depends on LANTIQ && SOC_XWAY 275 help 276 This enables support for memory mapped GPIOs on the External Bus Unit 277 (EBU) found on Lantiq SoCs. The gpios are output only as they are 278 created by attaching a 16bit latch to the bus. 279 280config GPIO_MOXART 281 bool "MOXART GPIO support" 282 depends on ARCH_MOXART 283 select GPIO_GENERIC 284 help 285 Select this option to enable GPIO driver for 286 MOXA ART SoC devices. 287 288config GPIO_MPC5200 289 def_bool y 290 depends on PPC_MPC52xx 291 292config GPIO_MPC8XXX 293 bool "MPC512x/MPC8xxx GPIO support" 294 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 295 FSL_SOC_BOOKE || PPC_86xx 296 help 297 Say Y here if you're going to use hardware that connects to the 298 MPC512x/831x/834x/837x/8572/8610 GPIOs. 299 300config GPIO_MSM_V2 301 tristate "Qualcomm MSM GPIO v2" 302 depends on GPIOLIB && OF && ARCH_QCOM 303 help 304 Say yes here to support the GPIO interface on ARM v7 based 305 Qualcomm MSM chips. Most of the pins on the MSM can be 306 selected for GPIO, and are controlled by this driver. 307 308config GPIO_MVEBU 309 def_bool y 310 depends on PLAT_ORION 311 depends on OF 312 select GENERIC_IRQ_CHIP 313 314config GPIO_MXC 315 def_bool y 316 depends on ARCH_MXC 317 select GPIO_GENERIC 318 select GENERIC_IRQ_CHIP 319 320config GPIO_MXS 321 def_bool y 322 depends on ARCH_MXS 323 select GPIO_GENERIC 324 select GENERIC_IRQ_CHIP 325 326config GPIO_OCTEON 327 tristate "Cavium OCTEON GPIO" 328 depends on GPIOLIB && CAVIUM_OCTEON_SOC 329 default y 330 help 331 Say yes here to support the on-chip GPIO lines on the OCTEON 332 family of SOCs. 333 334config GPIO_OMAP 335 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 336 default y if ARCH_OMAP 337 depends on ARM 338 select GENERIC_IRQ_CHIP 339 select GPIOLIB_IRQCHIP 340 help 341 Say yes here to enable GPIO support for TI OMAP SoCs. 342 343config GPIO_PL061 344 bool "PrimeCell PL061 GPIO support" 345 depends on ARM_AMBA 346 select IRQ_DOMAIN 347 select GPIOLIB_IRQCHIP 348 help 349 Say yes here to support the PrimeCell PL061 GPIO device 350 351config GPIO_PXA 352 bool "PXA GPIO support" 353 depends on ARCH_PXA || ARCH_MMP 354 help 355 Say yes here to support the PXA GPIO device 356 357config GPIO_RCAR 358 tristate "Renesas R-Car GPIO" 359 depends on ARCH_SHMOBILE || COMPILE_TEST 360 select GPIOLIB_IRQCHIP 361 help 362 Say yes here to support GPIO on Renesas R-Car SoCs. 363 364config GPIO_SAMSUNG 365 bool 366 depends on PLAT_SAMSUNG 367 help 368 Legacy GPIO support. Use only for platforms without support for 369 pinctrl. 370 371config GPIO_SCH 372 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 373 depends on PCI && X86 374 select MFD_CORE 375 select LPC_SCH 376 help 377 Say yes here to support GPIO interface on Intel Poulsbo SCH, 378 Intel Tunnel Creek processor, Intel Centerton processor or 379 Intel Quark X1000 SoC. 380 381 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 382 powered by the core power rail and are turned off during sleep 383 modes (S3 and higher). The remaining four GPIOs are powered by 384 the Intel SCH suspend power supply. These GPIOs remain 385 active during S3. The suspend powered GPIOs can be used to wake the 386 system from the Suspend-to-RAM state. 387 388 The Intel Tunnel Creek processor has 5 GPIOs powered by the 389 core power rail and 9 from suspend power supply. 390 391 The Intel Centerton processor has a total of 30 GPIO pins. 392 Twenty-one are powered by the core power rail and 9 from the 393 suspend power supply. 394 395 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 396 power well and 6 from the suspend power well. 397 398config GPIO_SCH311X 399 tristate "SMSC SCH311x SuperI/O GPIO" 400 help 401 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 402 SCH3116 "Super I/O" chipsets. 403 404 To compile this driver as a module, choose M here: the module will 405 be called gpio-sch311x. 406 407config GPIO_SPEAR_SPICS 408 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 409 depends on PLAT_SPEAR 410 select GENERIC_IRQ_CHIP 411 help 412 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 413 414config GPIO_STA2X11 415 bool "STA2x11/ConneXt GPIO support" 416 depends on MFD_STA2X11 417 select GENERIC_IRQ_CHIP 418 help 419 Say yes here to support the STA2x11/ConneXt GPIO device. 420 The GPIO module has 128 GPIO pins with alternate functions. 421 422config GPIO_STP_XWAY 423 bool "XWAY STP GPIOs" 424 depends on SOC_XWAY 425 help 426 This enables support for the Serial To Parallel (STP) unit found on 427 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 428 that can be up to 24 bit. This peripheral is aimed at driving leds. 429 Some of the gpios/leds can be auto updated by the soc with dsl and 430 phy status. 431 432config GPIO_SYSCON 433 tristate "GPIO based on SYSCON" 434 depends on MFD_SYSCON && OF 435 help 436 Say yes here to support GPIO functionality though SYSCON driver. 437 438config GPIO_TB10X 439 bool 440 select GENERIC_IRQ_CHIP 441 select OF_GPIO 442 443config GPIO_TS5500 444 tristate "TS-5500 DIO blocks and compatibles" 445 depends on TS5500 || COMPILE_TEST 446 help 447 This driver supports Digital I/O exposed by pin blocks found on some 448 Technologic Systems platforms. It includes, but is not limited to, 3 449 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 450 LCD port. 451 452config GPIO_TZ1090 453 bool "Toumaz Xenif TZ1090 GPIO support" 454 depends on SOC_TZ1090 455 select GENERIC_IRQ_CHIP 456 default y 457 help 458 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 459 460config GPIO_TZ1090_PDC 461 bool "Toumaz Xenif TZ1090 PDC GPIO support" 462 depends on SOC_TZ1090 463 default y 464 help 465 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 466 467config GPIO_VF610 468 def_bool y 469 depends on ARCH_MXC && SOC_VF610 470 select GPIOLIB_IRQCHIP 471 help 472 Say yes here to support Vybrid vf610 GPIOs. 473 474config GPIO_VR41XX 475 tristate "NEC VR4100 series General-purpose I/O Uint support" 476 depends on CPU_VR41XX 477 help 478 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 479 480config GPIO_VX855 481 tristate "VIA VX855/VX875 GPIO" 482 depends on PCI 483 select MFD_CORE 484 select MFD_VX855 485 help 486 Support access to the VX855/VX875 GPIO lines through the gpio library. 487 488 This driver provides common support for accessing the device, 489 additional drivers must be enabled in order to use the 490 functionality of the device. 491 492config GPIO_XGENE 493 bool "APM X-Gene GPIO controller support" 494 depends on ARM64 && OF_GPIO 495 help 496 This driver is to support the GPIO block within the APM X-Gene SoC 497 platform's generic flash controller. The GPIO pins are muxed with 498 the generic flash controller's address and data pins. Say yes 499 here to enable the GFC GPIO functionality. 500 501config GPIO_XGENE_SB 502 tristate "APM X-Gene GPIO standby controller support" 503 depends on ARCH_XGENE && OF_GPIO 504 select GPIO_GENERIC 505 help 506 This driver supports the GPIO block within the APM X-Gene 507 Standby Domain. Say yes here to enable the GPIO functionality. 508 509config GPIO_XILINX 510 tristate "Xilinx GPIO support" 511 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 512 help 513 Say yes here to support the Xilinx FPGA GPIO device 514 515config GPIO_XLP 516 tristate "Netlogic XLP GPIO support" 517 depends on CPU_XLP 518 select GPIOLIB_IRQCHIP 519 help 520 This driver provides support for GPIO interface on Netlogic XLP MIPS64 521 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 522 XLP9XX and XLP5XX. 523 524 If unsure, say N. 525 526config GPIO_XTENSA 527 bool "Xtensa GPIO32 support" 528 depends on XTENSA 529 depends on HAVE_XTENSA_GPIO32 530 depends on !SMP 531 help 532 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 533 and EXPSTATE (output) ports 534 535config GPIO_ZEVIO 536 bool "LSI ZEVIO SoC memory mapped GPIOs" 537 depends on ARM && OF_GPIO 538 help 539 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 540 541config GPIO_ZYNQ 542 tristate "Xilinx Zynq GPIO support" 543 depends on ARCH_ZYNQ || ARCH_ZYNQMP 544 select GPIOLIB_IRQCHIP 545 help 546 Say yes here to support Xilinx Zynq GPIO controller. 547 548endmenu 549 550menu "I2C GPIO expanders" 551 depends on I2C 552 553config GPIO_ADP5588 554 tristate "ADP5588 I2C GPIO expander" 555 depends on I2C 556 help 557 This option enables support for 18 GPIOs found 558 on Analog Devices ADP5588 GPIO Expanders. 559 560config GPIO_ADP5588_IRQ 561 bool "Interrupt controller support for ADP5588" 562 depends on GPIO_ADP5588=y 563 help 564 Say yes here to enable the adp5588 to be used as an interrupt 565 controller. It requires the driver to be built in the kernel. 566 567config GPIO_ADNP 568 tristate "Avionic Design N-bit GPIO expander" 569 depends on I2C && OF_GPIO 570 select GPIOLIB_IRQCHIP 571 help 572 This option enables support for N GPIOs found on Avionic Design 573 I2C GPIO expanders. The register space will be extended by powers 574 of two, so the controller will need to accommodate for that. For 575 example: if a controller provides 48 pins, 6 registers will be 576 enough to represent all pins, but the driver will assume a 577 register layout for 64 pins (8 registers). 578 579config GPIO_MAX7300 580 tristate "Maxim MAX7300 GPIO expander" 581 depends on I2C 582 select GPIO_MAX730X 583 help 584 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 585 586config GPIO_MAX732X 587 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 588 depends on I2C 589 help 590 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 591 Port Expanders. Each IO port on these chips has a fixed role of 592 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 593 Input and Output (designed by 'P'). The combinations are listed 594 below: 595 596 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 597 max7322 (4I4O), max7323 (4P4O) 598 599 16 bits: max7324 (8I8O), max7325 (8P8O), 600 max7326 (4I12O), max7327 (4P12O) 601 602 Board setup code must specify the model to use, and the start 603 number for these GPIOs. 604 605config GPIO_MAX732X_IRQ 606 bool "Interrupt controller support for MAX732x" 607 depends on GPIO_MAX732X=y 608 select GPIOLIB_IRQCHIP 609 help 610 Say yes here to enable the max732x to be used as an interrupt 611 controller. It requires the driver to be built in the kernel. 612 613config GPIO_MC9S08DZ60 614 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 615 depends on I2C=y && MACH_MX35_3DS 616 help 617 Select this to enable the MC9S08DZ60 GPIO driver 618 619config GPIO_PCA953X 620 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 621 depends on I2C 622 help 623 Say yes here to provide access to several register-oriented 624 SMBus I/O expanders, made mostly by NXP or TI. Compatible 625 models include: 626 627 4 bits: pca9536, pca9537 628 629 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 630 pca9556, pca9557, pca9574, tca6408, xra1202 631 632 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 633 tca6416 634 635 24 bits: tca6424 636 637 40 bits: pca9505, pca9698 638 639config GPIO_PCA953X_IRQ 640 bool "Interrupt controller support for PCA953x" 641 depends on GPIO_PCA953X=y 642 select GPIOLIB_IRQCHIP 643 help 644 Say yes here to enable the pca953x to be used as an interrupt 645 controller. It requires the driver to be built in the kernel. 646 647config GPIO_PCF857X 648 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 649 depends on I2C 650 select GPIOLIB_IRQCHIP 651 select IRQ_DOMAIN 652 help 653 Say yes here to provide access to most "quasi-bidirectional" I2C 654 GPIO expanders used for additional digital outputs or inputs. 655 Most of these parts are from NXP, though TI is a second source for 656 some of them. Compatible models include: 657 658 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 659 pca9670, pca9672, pca9674, pca9674a, 660 max7328, max7329 661 662 16 bits: pcf8575, pcf8575c, pca8575, 663 pca9671, pca9673, pca9675 664 665 Your board setup code will need to declare the expanders in 666 use, and assign numbers to the GPIOs they expose. Those GPIOs 667 can then be used from drivers and other kernel code, just like 668 other GPIOs, but only accessible from task contexts. 669 670 This driver provides an in-kernel interface to those GPIOs using 671 platform-neutral GPIO calls. 672 673config GPIO_SX150X 674 bool "Semtech SX150x I2C GPIO expander" 675 depends on I2C=y 676 select GPIOLIB_IRQCHIP 677 default n 678 help 679 Say yes here to provide support for Semtech SX150-series I2C 680 GPIO expanders. Compatible models include: 681 682 8 bits: sx1508q 683 16 bits: sx1509q 684 685endmenu 686 687menu "MFD GPIO expanders" 688 689config GPIO_ADP5520 690 tristate "GPIO Support for ADP5520 PMIC" 691 depends on PMIC_ADP5520 692 help 693 This option enables support for on-chip GPIO found 694 on Analog Devices ADP5520 PMICs. 695 696config GPIO_ARIZONA 697 tristate "Wolfson Microelectronics Arizona class devices" 698 depends on MFD_ARIZONA 699 help 700 Support for GPIOs on Wolfson Arizona class devices. 701 702config GPIO_CRYSTAL_COVE 703 tristate "GPIO support for Crystal Cove PMIC" 704 depends on INTEL_SOC_PMIC 705 select GPIOLIB_IRQCHIP 706 help 707 Support for GPIO pins on Crystal Cove PMIC. 708 709 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 710 inside. 711 712 This driver can also be built as a module. If so, the module will be 713 called gpio-crystalcove. 714 715config GPIO_CS5535 716 tristate "AMD CS5535/CS5536 GPIO support" 717 depends on MFD_CS5535 718 help 719 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 720 can be used for quite a number of things. The CS5535/6 is found on 721 AMD Geode and Lemote Yeeloong devices. 722 723 If unsure, say N. 724 725config GPIO_DA9052 726 tristate "Dialog DA9052 GPIO" 727 depends on PMIC_DA9052 728 help 729 Say yes here to enable the GPIO driver for the DA9052 chip. 730 731config GPIO_DA9055 732 tristate "Dialog Semiconductor DA9055 GPIO" 733 depends on MFD_DA9055 734 help 735 Say yes here to enable the GPIO driver for the DA9055 chip. 736 737 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 738 be controller by this driver. 739 740 If driver is built as a module it will be called gpio-da9055. 741 742config GPIO_DLN2 743 tristate "Diolan DLN2 GPIO support" 744 depends on MFD_DLN2 745 select GPIOLIB_IRQCHIP 746 747 help 748 Select this option to enable GPIO driver for the Diolan DLN2 749 board. 750 751 This driver can also be built as a module. If so, the module 752 will be called gpio-dln2. 753 754config GPIO_JANZ_TTL 755 tristate "Janz VMOD-TTL Digital IO Module" 756 depends on MFD_JANZ_CMODIO 757 help 758 This enables support for the Janz VMOD-TTL Digital IO module. 759 This driver provides support for driving the pins in output 760 mode only. Input mode is not supported. 761 762config GPIO_KEMPLD 763 tristate "Kontron ETX / COMexpress GPIO" 764 depends on MFD_KEMPLD 765 help 766 This enables support for the PLD GPIO interface on some Kontron ETX 767 and COMexpress (ETXexpress) modules. 768 769 This driver can also be built as a module. If so, the module will be 770 called gpio-kempld. 771 772config GPIO_LP3943 773 tristate "TI/National Semiconductor LP3943 GPIO expander" 774 depends on MFD_LP3943 775 help 776 GPIO driver for LP3943 MFD. 777 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 778 Open drain outputs are required for this usage. 779 780config GPIO_MSIC 781 bool "Intel MSIC mixed signal gpio support" 782 depends on MFD_INTEL_MSIC 783 help 784 Enable support for GPIO on intel MSIC controllers found in 785 intel MID devices 786 787config GPIO_PALMAS 788 bool "TI PALMAS series PMICs GPIO" 789 depends on MFD_PALMAS 790 help 791 Select this option to enable GPIO driver for the TI PALMAS 792 series chip family. 793 794config GPIO_RC5T583 795 bool "RICOH RC5T583 GPIO" 796 depends on MFD_RC5T583 797 help 798 Select this option to enable GPIO driver for the Ricoh RC5T583 799 chip family. 800 This driver provides the support for driving/reading the gpio pins 801 of RC5T583 device through standard gpio library. 802 803config GPIO_STMPE 804 bool "STMPE GPIOs" 805 depends on MFD_STMPE 806 depends on OF_GPIO 807 select GPIOLIB_IRQCHIP 808 help 809 This enables support for the GPIOs found on the STMPE I/O 810 Expanders. 811 812config GPIO_TC3589X 813 bool "TC3589X GPIOs" 814 depends on MFD_TC3589X 815 depends on OF_GPIO 816 select GPIOLIB_IRQCHIP 817 help 818 This enables support for the GPIOs found on the TC3589X 819 I/O Expander. 820 821config GPIO_TIMBERDALE 822 bool "Support for timberdale GPIO IP" 823 depends on MFD_TIMBERDALE 824 ---help--- 825 Add support for the GPIO IP in the timberdale FPGA. 826 827config GPIO_TPS6586X 828 bool "TPS6586X GPIO" 829 depends on MFD_TPS6586X 830 help 831 Select this option to enable GPIO driver for the TPS6586X 832 chip family. 833 834config GPIO_TPS65910 835 bool "TPS65910 GPIO" 836 depends on MFD_TPS65910 837 help 838 Select this option to enable GPIO driver for the TPS65910 839 chip family. 840 841config GPIO_TPS65912 842 tristate "TI TPS65912 GPIO" 843 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 844 help 845 This driver supports TPS65912 gpio chip 846 847config GPIO_TWL4030 848 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 849 depends on TWL4030_CORE 850 help 851 Say yes here to access the GPIO signals of various multi-function 852 power management chips from Texas Instruments. 853 854config GPIO_TWL6040 855 tristate "TWL6040 GPO" 856 depends on TWL6040_CORE 857 help 858 Say yes here to access the GPO signals of twl6040 859 audio chip from Texas Instruments. 860 861config GPIO_UCB1400 862 tristate "Philips UCB1400 GPIO" 863 depends on UCB1400_CORE 864 help 865 This enables support for the Philips UCB1400 GPIO pins. 866 The UCB1400 is an AC97 audio codec. 867 868config GPIO_WM831X 869 tristate "WM831x GPIOs" 870 depends on MFD_WM831X 871 help 872 Say yes here to access the GPIO signals of WM831x power management 873 chips from Wolfson Microelectronics. 874 875config GPIO_WM8350 876 tristate "WM8350 GPIOs" 877 depends on MFD_WM8350 878 help 879 Say yes here to access the GPIO signals of WM8350 power management 880 chips from Wolfson Microelectronics. 881 882config GPIO_WM8994 883 tristate "WM8994 GPIOs" 884 depends on MFD_WM8994 885 help 886 Say yes here to access the GPIO signals of WM8994 audio hub 887 CODECs from Wolfson Microelectronics. 888 889endmenu 890 891menu "PCI GPIO expanders" 892 depends on PCI 893 894config GPIO_AMD8111 895 tristate "AMD 8111 GPIO driver" 896 depends on PCI 897 help 898 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 899 900 Note, that usually system firmware/ACPI handles GPIO pins on their 901 own and users might easily break their systems with uncarefull usage 902 of this driver! 903 904 If unsure, say N 905 906config GPIO_BT8XX 907 tristate "BT8XX GPIO abuser" 908 depends on PCI && VIDEO_BT848=n 909 help 910 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 911 as a cheap PCI GPIO card. 912 913 This chip can be found on Miro, Hauppauge and STB TV-cards. 914 915 The card needs to be physically altered for using it as a 916 GPIO card. For more information on how to build a GPIO card 917 from a BT8xx TV card, see the documentation file at 918 Documentation/bt8xxgpio.txt 919 920 If unsure, say N. 921 922config GPIO_INTEL_MID 923 bool "Intel Mid GPIO support" 924 depends on PCI && X86 925 select GPIOLIB_IRQCHIP 926 help 927 Say Y here to support Intel Mid GPIO. 928 929config GPIO_ML_IOH 930 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 931 depends on PCI 932 select GENERIC_IRQ_CHIP 933 help 934 ML7213 is companion chip for Intel Atom E6xx series. 935 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 936 Hub) which is for IVI(In-Vehicle Infotainment) use. 937 This driver can access the IOH's GPIO device. 938 939config GPIO_PCH 940 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 941 depends on PCI && (X86_32 || COMPILE_TEST) 942 select GENERIC_IRQ_CHIP 943 help 944 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 945 which is an IOH(Input/Output Hub) for x86 embedded processor. 946 This driver can access PCH GPIO device. 947 948 This driver also can be used for LAPIS Semiconductor IOH(Input/ 949 Output Hub), ML7223 and ML7831. 950 ML7223 IOH is for MP(Media Phone) use. 951 ML7831 IOH is for general purpose use. 952 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 953 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 954 955config GPIO_RDC321X 956 tristate "RDC R-321x GPIO support" 957 depends on PCI 958 select MFD_CORE 959 select MFD_RDC321X 960 help 961 Support for the RDC R321x SoC GPIOs over southbridge 962 PCI configuration space. 963 964config GPIO_SODAVILLE 965 bool "Intel Sodaville GPIO support" 966 depends on X86 && PCI && OF 967 select GPIO_GENERIC 968 select GENERIC_IRQ_CHIP 969 help 970 Say Y here to support Intel Sodaville GPIO. 971 972endmenu 973 974menu "SPI GPIO expanders" 975 depends on SPI_MASTER 976 977config GPIO_74X164 978 tristate "74x164 serial-in/parallel-out 8-bits shift register" 979 depends on SPI_MASTER && OF 980 help 981 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 982 shift registers. This driver can be used to provide access 983 to more gpio outputs. 984 985config GPIO_MAX7301 986 tristate "Maxim MAX7301 GPIO expander" 987 depends on SPI_MASTER 988 select GPIO_MAX730X 989 help 990 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 991 992config GPIO_MCP23S08 993 tristate "Microchip MCP23xxx I/O expander" 994 depends on (SPI_MASTER && !I2C) || I2C 995 help 996 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 997 I/O expanders. 998 This provides a GPIO interface supporting inputs and outputs. 999 The I2C versions of the chips can be used as interrupt-controller. 1000 1001config GPIO_MC33880 1002 tristate "Freescale MC33880 high-side/low-side switch" 1003 depends on SPI_MASTER 1004 help 1005 SPI driver for Freescale MC33880 high-side/low-side switch. 1006 This provides GPIO interface supporting inputs and outputs. 1007 1008config GPIO_ZX 1009 bool "ZTE ZX GPIO support" 1010 select GPIOLIB_IRQCHIP 1011 help 1012 Say yes here to support the GPIO device on ZTE ZX SoCs. 1013 1014endmenu 1015 1016menu "USB GPIO expanders" 1017 depends on USB 1018 1019config GPIO_VIPERBOARD 1020 tristate "Viperboard GPIO a & b support" 1021 depends on MFD_VIPERBOARD && USB 1022 help 1023 Say yes here to access the GPIO signals of Nano River 1024 Technologies Viperboard. There are two GPIO chips on the 1025 board: gpioa and gpiob. 1026 See viperboard API specification and Nano 1027 River Tech's viperboard.h for detailed meaning 1028 of the module parameters. 1029 1030endmenu 1031 1032endif 1033