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 93config GPIO_DA9052 94 tristate "Dialog DA9052 GPIO" 95 depends on PMIC_DA9052 96 help 97 Say yes here to enable the GPIO driver for the DA9052 chip. 98 99config GPIO_DA9055 100 tristate "Dialog Semiconductor DA9055 GPIO" 101 depends on MFD_DA9055 102 help 103 Say yes here to enable the GPIO driver for the DA9055 chip. 104 105 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 106 be controller by this driver. 107 108 If driver is built as a module it will be called gpio-da9055. 109 110config GPIO_MAX730X 111 tristate 112 113comment "Memory mapped GPIO drivers:" 114 115config GPIO_74XX_MMIO 116 tristate "GPIO driver for 74xx-ICs with MMIO access" 117 depends on OF_GPIO 118 select GPIO_GENERIC 119 help 120 Say yes here to support GPIO functionality for 74xx-compatible ICs 121 with MMIO access. Compatible models include: 122 1 bit: 741G125 (Input), 741G74 (Output) 123 2 bits: 742G125 (Input), 7474 (Output) 124 4 bits: 74125 (Input), 74175 (Output) 125 6 bits: 74365 (Input), 74174 (Output) 126 8 bits: 74244 (Input), 74273 (Output) 127 16 bits: 741624 (Input), 7416374 (Output) 128 129config GPIO_ALTERA 130 tristate "Altera GPIO" 131 depends on OF_GPIO 132 select GPIO_GENERIC 133 select GPIOLIB_IRQCHIP 134 help 135 Say Y or M here to build support for the Altera PIO device. 136 137 If driver is built as a module it will be called gpio-altera. 138 139config GPIO_CLPS711X 140 tristate "CLPS711X GPIO support" 141 depends on ARCH_CLPS711X || COMPILE_TEST 142 select GPIO_GENERIC 143 help 144 Say yes here to support GPIO on CLPS711X SoCs. 145 146config GPIO_DAVINCI 147 bool "TI Davinci/Keystone GPIO support" 148 default y if ARCH_DAVINCI 149 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 150 help 151 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 152 153config GPIO_DWAPB 154 tristate "Synopsys DesignWare APB GPIO driver" 155 depends on ((ARM || ARM64) && OF_GPIO) || X86_INTEL_QUARK 156 select GPIO_GENERIC 157 select GENERIC_IRQ_CHIP 158 help 159 Say Y or M here to build support for the Synopsys DesignWare APB 160 GPIO block. 161 162config GPIO_EM 163 tristate "Emma Mobile GPIO" 164 depends on ARM && OF_GPIO 165 help 166 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 167 168config GPIO_EP93XX 169 def_bool y 170 depends on ARCH_EP93XX 171 select GPIO_GENERIC 172 173config GPIO_F7188X 174 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 175 depends on X86 176 help 177 This option enables support for GPIOs found on Fintek Super-I/O 178 chips F71869, F71869A, F71882FG and F71889F. 179 180 To compile this driver as a module, choose M here: the module will 181 be called f7188x-gpio. 182 183config GPIO_GE_FPGA 184 bool "GE FPGA based GPIO" 185 depends on GE_FPGA 186 select GPIO_GENERIC 187 help 188 Support for common GPIO functionality provided on some GE Single Board 189 Computers. 190 191 This driver provides basic support (configure as input or output, read 192 and write pin state) for GPIO implemented in a number of GE single 193 board computers. 194 195config GPIO_GENERIC_PLATFORM 196 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 197 select GPIO_GENERIC 198 help 199 Say yes here to support basic platform_device memory-mapped GPIO controllers. 200 201config GPIO_GRGPIO 202 tristate "Aeroflex Gaisler GRGPIO support" 203 depends on OF 204 select GPIO_GENERIC 205 select IRQ_DOMAIN 206 help 207 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 208 VHDL IP core library. 209 210config GPIO_ICH 211 tristate "Intel ICH GPIO" 212 depends on PCI && X86 213 select MFD_CORE 214 select LPC_ICH 215 help 216 Say yes here to support the GPIO functionality of a number of Intel 217 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 218 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 219 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 220 221 If unsure, say N. 222 223config GPIO_IOP 224 tristate "Intel IOP GPIO" 225 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 226 help 227 Say yes here to support the GPIO functionality of a number of Intel 228 IOP32X or IOP33X. 229 230 If unsure, say N. 231 232config GPIO_IT8761E 233 tristate "IT8761E GPIO support" 234 depends on X86 # unconditional access to IO space. 235 help 236 Say yes here to support GPIO functionality of IT8761E super I/O chip. 237 238config GPIO_LOONGSON 239 bool "Loongson-2/3 GPIO support" 240 depends on CPU_LOONGSON2 || CPU_LOONGSON3 241 help 242 driver for GPIO functionality on Loongson-2F/3A/3B processors. 243 244config GPIO_LYNXPOINT 245 tristate "Intel Lynxpoint GPIO support" 246 depends on ACPI && X86 247 select GPIOLIB_IRQCHIP 248 help 249 driver for GPIO functionality on Intel Lynxpoint PCH chipset 250 Requires ACPI device enumeration code to set up a platform device. 251 252config GPIO_MB86S7X 253 bool "GPIO support for Fujitsu MB86S7x Platforms" 254 depends on ARCH_MB86S7X 255 help 256 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 257 258config GPIO_MM_LANTIQ 259 bool "Lantiq Memory mapped GPIOs" 260 depends on LANTIQ && SOC_XWAY 261 help 262 This enables support for memory mapped GPIOs on the External Bus Unit 263 (EBU) found on Lantiq SoCs. The gpios are output only as they are 264 created by attaching a 16bit latch to the bus. 265 266config GPIO_MOXART 267 bool "MOXART GPIO support" 268 depends on ARCH_MOXART 269 select GPIO_GENERIC 270 help 271 Select this option to enable GPIO driver for 272 MOXA ART SoC devices. 273 274config GPIO_MPC5200 275 def_bool y 276 depends on PPC_MPC52xx 277 278config GPIO_MPC8XXX 279 bool "MPC512x/MPC8xxx GPIO support" 280 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 281 FSL_SOC_BOOKE || PPC_86xx 282 help 283 Say Y here if you're going to use hardware that connects to the 284 MPC512x/831x/834x/837x/8572/8610 GPIOs. 285 286config GPIO_MSM_V1 287 tristate "Qualcomm MSM GPIO v1" 288 depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) 289 help 290 Say yes here to support the GPIO interface on ARM v6 based 291 Qualcomm MSM chips. Most of the pins on the MSM can be 292 selected for GPIO, and are controlled by this driver. 293 294config GPIO_MSM_V2 295 tristate "Qualcomm MSM GPIO v2" 296 depends on GPIOLIB && OF && ARCH_QCOM 297 help 298 Say yes here to support the GPIO interface on ARM v7 based 299 Qualcomm MSM chips. Most of the pins on the MSM can be 300 selected for GPIO, and are controlled by this driver. 301 302config GPIO_MVEBU 303 def_bool y 304 depends on PLAT_ORION 305 depends on OF 306 select GPIO_GENERIC 307 select GENERIC_IRQ_CHIP 308 309config GPIO_MXC 310 def_bool y 311 depends on ARCH_MXC 312 select GPIO_GENERIC 313 select GENERIC_IRQ_CHIP 314 315config GPIO_MXS 316 def_bool y 317 depends on ARCH_MXS 318 select GPIO_GENERIC 319 select GENERIC_IRQ_CHIP 320 321config GPIO_OCTEON 322 tristate "Cavium OCTEON GPIO" 323 depends on GPIOLIB && CAVIUM_OCTEON_SOC 324 default y 325 help 326 Say yes here to support the on-chip GPIO lines on the OCTEON 327 family of SOCs. 328 329config GPIO_OMAP 330 bool "TI OMAP GPIO support" if COMPILE_TEST && !ARCH_OMAP2PLUS 331 default y if ARCH_OMAP 332 depends on ARM 333 select GENERIC_IRQ_CHIP 334 select GPIOLIB_IRQCHIP 335 help 336 Say yes here to enable GPIO support for TI OMAP SoCs. 337 338config GPIO_PL061 339 bool "PrimeCell PL061 GPIO support" 340 depends on ARM_AMBA 341 select IRQ_DOMAIN 342 select GPIOLIB_IRQCHIP 343 help 344 Say yes here to support the PrimeCell PL061 GPIO device 345 346config GPIO_PXA 347 bool "PXA GPIO support" 348 depends on ARCH_PXA || ARCH_MMP 349 help 350 Say yes here to support the PXA GPIO device 351 352config GPIO_RCAR 353 tristate "Renesas R-Car GPIO" 354 depends on ARM && (ARCH_SHMOBILE || COMPILE_TEST) 355 select GPIOLIB_IRQCHIP 356 help 357 Say yes here to support GPIO on Renesas R-Car SoCs. 358 359config GPIO_SAMSUNG 360 bool 361 depends on PLAT_SAMSUNG 362 help 363 Legacy GPIO support. Use only for platforms without support for 364 pinctrl. 365 366config GPIO_SCH 367 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 368 depends on PCI && X86 369 select MFD_CORE 370 select LPC_SCH 371 help 372 Say yes here to support GPIO interface on Intel Poulsbo SCH, 373 Intel Tunnel Creek processor, Intel Centerton processor or 374 Intel Quark X1000 SoC. 375 376 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 377 powered by the core power rail and are turned off during sleep 378 modes (S3 and higher). The remaining four GPIOs are powered by 379 the Intel SCH suspend power supply. These GPIOs remain 380 active during S3. The suspend powered GPIOs can be used to wake the 381 system from the Suspend-to-RAM state. 382 383 The Intel Tunnel Creek processor has 5 GPIOs powered by the 384 core power rail and 9 from suspend power supply. 385 386 The Intel Centerton processor has a total of 30 GPIO pins. 387 Twenty-one are powered by the core power rail and 9 from the 388 suspend power supply. 389 390 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 391 power well and 6 from the suspend power well. 392 393config GPIO_SCH311X 394 tristate "SMSC SCH311x SuperI/O GPIO" 395 help 396 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 397 SCH3116 "Super I/O" chipsets. 398 399 To compile this driver as a module, choose M here: the module will 400 be called gpio-sch311x. 401 402config GPIO_SPEAR_SPICS 403 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 404 depends on PLAT_SPEAR 405 select GENERIC_IRQ_CHIP 406 help 407 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 408 409config GPIO_STA2X11 410 bool "STA2x11/ConneXt GPIO support" 411 depends on MFD_STA2X11 412 select GENERIC_IRQ_CHIP 413 help 414 Say yes here to support the STA2x11/ConneXt GPIO device. 415 The GPIO module has 128 GPIO pins with alternate functions. 416 417config GPIO_SYSCON 418 tristate "GPIO based on SYSCON" 419 depends on MFD_SYSCON && OF 420 help 421 Say yes here to support GPIO functionality though SYSCON driver. 422 423config GPIO_TB10X 424 bool 425 select GENERIC_IRQ_CHIP 426 select OF_GPIO 427 428config GPIO_TS5500 429 tristate "TS-5500 DIO blocks and compatibles" 430 depends on TS5500 || COMPILE_TEST 431 help 432 This driver supports Digital I/O exposed by pin blocks found on some 433 Technologic Systems platforms. It includes, but is not limited to, 3 434 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 435 LCD port. 436 437config GPIO_TZ1090 438 bool "Toumaz Xenif TZ1090 GPIO support" 439 depends on SOC_TZ1090 440 select GENERIC_IRQ_CHIP 441 default y 442 help 443 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 444 445config GPIO_TZ1090_PDC 446 bool "Toumaz Xenif TZ1090 PDC GPIO support" 447 depends on SOC_TZ1090 448 default y 449 help 450 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 451 452config GPIO_VF610 453 def_bool y 454 depends on ARCH_MXC && SOC_VF610 455 select GPIOLIB_IRQCHIP 456 help 457 Say yes here to support Vybrid vf610 GPIOs. 458 459config GPIO_VR41XX 460 tristate "NEC VR4100 series General-purpose I/O Uint support" 461 depends on CPU_VR41XX 462 help 463 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 464 465config GPIO_VX855 466 tristate "VIA VX855/VX875 GPIO" 467 depends on PCI 468 select MFD_CORE 469 select MFD_VX855 470 help 471 Support access to the VX855/VX875 GPIO lines through the gpio library. 472 473 This driver provides common support for accessing the device, 474 additional drivers must be enabled in order to use the 475 functionality of the device. 476 477config GPIO_XGENE 478 bool "APM X-Gene GPIO controller support" 479 depends on ARM64 && OF_GPIO 480 help 481 This driver is to support the GPIO block within the APM X-Gene SoC 482 platform's generic flash controller. The GPIO pins are muxed with 483 the generic flash controller's address and data pins. Say yes 484 here to enable the GFC GPIO functionality. 485 486config GPIO_XGENE_SB 487 tristate "APM X-Gene GPIO standby controller support" 488 depends on ARCH_XGENE && OF_GPIO 489 select GPIO_GENERIC 490 help 491 This driver supports the GPIO block within the APM X-Gene 492 Standby Domain. Say yes here to enable the GPIO functionality. 493 494config GPIO_XILINX 495 tristate "Xilinx GPIO support" 496 depends on OF_GPIO && (PPC || MICROBLAZE || ARCH_ZYNQ || X86) 497 help 498 Say yes here to support the Xilinx FPGA GPIO device 499 500config GPIO_XTENSA 501 bool "Xtensa GPIO32 support" 502 depends on XTENSA 503 depends on HAVE_XTENSA_GPIO32 504 depends on !SMP 505 help 506 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 507 and EXPSTATE (output) ports 508 509config GPIO_ZEVIO 510 bool "LSI ZEVIO SoC memory mapped GPIOs" 511 depends on ARM && OF_GPIO 512 help 513 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 514 515config GPIO_ZYNQ 516 tristate "Xilinx Zynq GPIO support" 517 depends on ARCH_ZYNQ 518 select GPIOLIB_IRQCHIP 519 help 520 Say yes here to support Xilinx Zynq GPIO controller. 521 522comment "I2C GPIO expanders:" 523 524config GPIO_ADP5520 525 tristate "GPIO Support for ADP5520 PMIC" 526 depends on PMIC_ADP5520 527 help 528 This option enables support for on-chip GPIO found 529 on Analog Devices ADP5520 PMICs. 530 531config GPIO_ADP5588 532 tristate "ADP5588 I2C GPIO expander" 533 depends on I2C 534 help 535 This option enables support for 18 GPIOs found 536 on Analog Devices ADP5588 GPIO Expanders. 537 538config GPIO_ADP5588_IRQ 539 bool "Interrupt controller support for ADP5588" 540 depends on GPIO_ADP5588=y 541 help 542 Say yes here to enable the adp5588 to be used as an interrupt 543 controller. It requires the driver to be built in the kernel. 544 545config GPIO_ADNP 546 tristate "Avionic Design N-bit GPIO expander" 547 depends on I2C && OF_GPIO 548 select GPIOLIB_IRQCHIP 549 help 550 This option enables support for N GPIOs found on Avionic Design 551 I2C GPIO expanders. The register space will be extended by powers 552 of two, so the controller will need to accommodate for that. For 553 example: if a controller provides 48 pins, 6 registers will be 554 enough to represent all pins, but the driver will assume a 555 register layout for 64 pins (8 registers). 556 557config GPIO_ARIZONA 558 tristate "Wolfson Microelectronics Arizona class devices" 559 depends on MFD_ARIZONA 560 help 561 Support for GPIOs on Wolfson Arizona class devices. 562 563config GPIO_CRYSTAL_COVE 564 tristate "GPIO support for Crystal Cove PMIC" 565 depends on INTEL_SOC_PMIC 566 select GPIOLIB_IRQCHIP 567 help 568 Support for GPIO pins on Crystal Cove PMIC. 569 570 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 571 inside. 572 573 This driver can also be built as a module. If so, the module will be 574 called gpio-crystalcove. 575 576config GPIO_LP3943 577 tristate "TI/National Semiconductor LP3943 GPIO expander" 578 depends on MFD_LP3943 579 help 580 GPIO driver for LP3943 MFD. 581 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 582 Open drain outputs are required for this usage. 583 584config GPIO_MAX7300 585 tristate "Maxim MAX7300 GPIO expander" 586 depends on I2C 587 select GPIO_MAX730X 588 help 589 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 590 591config GPIO_MAX732X 592 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 593 depends on I2C 594 help 595 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 596 Port Expanders. Each IO port on these chips has a fixed role of 597 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 598 Input and Output (designed by 'P'). The combinations are listed 599 below: 600 601 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 602 max7322 (4I4O), max7323 (4P4O) 603 604 16 bits: max7324 (8I8O), max7325 (8P8O), 605 max7326 (4I12O), max7327 (4P12O) 606 607 Board setup code must specify the model to use, and the start 608 number for these GPIOs. 609 610config GPIO_MAX732X_IRQ 611 bool "Interrupt controller support for MAX732x" 612 depends on GPIO_MAX732X=y 613 select GPIOLIB_IRQCHIP 614 help 615 Say yes here to enable the max732x to be used as an interrupt 616 controller. It requires the driver to be built in the kernel. 617 618config GPIO_MC9S08DZ60 619 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 620 depends on I2C=y && MACH_MX35_3DS 621 help 622 Select this to enable the MC9S08DZ60 GPIO driver 623 624config GPIO_PCA953X 625 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 626 depends on I2C 627 help 628 Say yes here to provide access to several register-oriented 629 SMBus I/O expanders, made mostly by NXP or TI. Compatible 630 models include: 631 632 4 bits: pca9536, pca9537 633 634 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 635 pca9556, pca9557, pca9574, tca6408, xra1202 636 637 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 638 tca6416 639 640 24 bits: tca6424 641 642 40 bits: pca9505, pca9698 643 644config GPIO_PCA953X_IRQ 645 bool "Interrupt controller support for PCA953x" 646 depends on GPIO_PCA953X=y 647 select GPIOLIB_IRQCHIP 648 help 649 Say yes here to enable the pca953x to be used as an interrupt 650 controller. It requires the driver to be built in the kernel. 651 652config GPIO_PCF857X 653 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 654 depends on I2C 655 select GPIOLIB_IRQCHIP 656 select IRQ_DOMAIN 657 help 658 Say yes here to provide access to most "quasi-bidirectional" I2C 659 GPIO expanders used for additional digital outputs or inputs. 660 Most of these parts are from NXP, though TI is a second source for 661 some of them. Compatible models include: 662 663 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 664 pca9670, pca9672, pca9674, pca9674a, 665 max7328, max7329 666 667 16 bits: pcf8575, pcf8575c, pca8575, 668 pca9671, pca9673, pca9675 669 670 Your board setup code will need to declare the expanders in 671 use, and assign numbers to the GPIOs they expose. Those GPIOs 672 can then be used from drivers and other kernel code, just like 673 other GPIOs, but only accessible from task contexts. 674 675 This driver provides an in-kernel interface to those GPIOs using 676 platform-neutral GPIO calls. 677 678config GPIO_RC5T583 679 bool "RICOH RC5T583 GPIO" 680 depends on MFD_RC5T583 681 help 682 Select this option to enable GPIO driver for the Ricoh RC5T583 683 chip family. 684 This driver provides the support for driving/reading the gpio pins 685 of RC5T583 device through standard gpio library. 686 687config GPIO_STMPE 688 bool "STMPE GPIOs" 689 depends on MFD_STMPE 690 depends on OF_GPIO 691 select GPIOLIB_IRQCHIP 692 help 693 This enables support for the GPIOs found on the STMPE I/O 694 Expanders. 695 696config GPIO_STP_XWAY 697 bool "XWAY STP GPIOs" 698 depends on SOC_XWAY 699 help 700 This enables support for the Serial To Parallel (STP) unit found on 701 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 702 that can be up to 24 bit. This peripheral is aimed at driving leds. 703 Some of the gpios/leds can be auto updated by the soc with dsl and 704 phy status. 705 706config GPIO_SX150X 707 bool "Semtech SX150x I2C GPIO expander" 708 depends on I2C=y 709 select GPIOLIB_IRQCHIP 710 default n 711 help 712 Say yes here to provide support for Semtech SX150-series I2C 713 GPIO expanders. Compatible models include: 714 715 8 bits: sx1508q 716 16 bits: sx1509q 717 718config GPIO_TC3589X 719 bool "TC3589X GPIOs" 720 depends on MFD_TC3589X 721 select GPIOLIB_IRQCHIP 722 help 723 This enables support for the GPIOs found on the TC3589X 724 I/O Expander. 725 726config GPIO_TPS65912 727 tristate "TI TPS65912 GPIO" 728 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 729 help 730 This driver supports TPS65912 gpio chip 731 732config GPIO_TWL4030 733 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 734 depends on TWL4030_CORE 735 help 736 Say yes here to access the GPIO signals of various multi-function 737 power management chips from Texas Instruments. 738 739config GPIO_TWL6040 740 tristate "TWL6040 GPO" 741 depends on TWL6040_CORE 742 help 743 Say yes here to access the GPO signals of twl6040 744 audio chip from Texas Instruments. 745 746config GPIO_WM831X 747 tristate "WM831x GPIOs" 748 depends on MFD_WM831X 749 help 750 Say yes here to access the GPIO signals of WM831x power management 751 chips from Wolfson Microelectronics. 752 753config GPIO_WM8350 754 tristate "WM8350 GPIOs" 755 depends on MFD_WM8350 756 help 757 Say yes here to access the GPIO signals of WM8350 power management 758 chips from Wolfson Microelectronics. 759 760config GPIO_WM8994 761 tristate "WM8994 GPIOs" 762 depends on MFD_WM8994 763 help 764 Say yes here to access the GPIO signals of WM8994 audio hub 765 CODECs from Wolfson Microelectronics. 766 767comment "PCI GPIO expanders:" 768 769config GPIO_AMD8111 770 tristate "AMD 8111 GPIO driver" 771 depends on PCI 772 help 773 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 774 775 Note, that usually system firmware/ACPI handles GPIO pins on their 776 own and users might easily break their systems with uncarefull usage 777 of this driver! 778 779 If unsure, say N 780 781config GPIO_BT8XX 782 tristate "BT8XX GPIO abuser" 783 depends on PCI && VIDEO_BT848=n 784 help 785 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 786 as a cheap PCI GPIO card. 787 788 This chip can be found on Miro, Hauppauge and STB TV-cards. 789 790 The card needs to be physically altered for using it as a 791 GPIO card. For more information on how to build a GPIO card 792 from a BT8xx TV card, see the documentation file at 793 Documentation/bt8xxgpio.txt 794 795 If unsure, say N. 796 797config GPIO_CS5535 798 tristate "AMD CS5535/CS5536 GPIO support" 799 depends on MFD_CS5535 800 help 801 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 802 can be used for quite a number of things. The CS5535/6 is found on 803 AMD Geode and Lemote Yeeloong devices. 804 805 If unsure, say N. 806 807config GPIO_INTEL_MID 808 bool "Intel Mid GPIO support" 809 depends on PCI && X86 810 select GPIOLIB_IRQCHIP 811 help 812 Say Y here to support Intel Mid GPIO. 813 814config GPIO_ML_IOH 815 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 816 depends on PCI 817 select GENERIC_IRQ_CHIP 818 help 819 ML7213 is companion chip for Intel Atom E6xx series. 820 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 821 Hub) which is for IVI(In-Vehicle Infotainment) use. 822 This driver can access the IOH's GPIO device. 823 824config GPIO_PCH 825 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 826 depends on PCI && (X86_32 || COMPILE_TEST) 827 select GENERIC_IRQ_CHIP 828 help 829 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 830 which is an IOH(Input/Output Hub) for x86 embedded processor. 831 This driver can access PCH GPIO device. 832 833 This driver also can be used for LAPIS Semiconductor IOH(Input/ 834 Output Hub), ML7223 and ML7831. 835 ML7223 IOH is for MP(Media Phone) use. 836 ML7831 IOH is for general purpose use. 837 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 838 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 839 840config GPIO_RDC321X 841 tristate "RDC R-321x GPIO support" 842 depends on PCI 843 select MFD_CORE 844 select MFD_RDC321X 845 help 846 Support for the RDC R321x SoC GPIOs over southbridge 847 PCI configuration space. 848 849config GPIO_SODAVILLE 850 bool "Intel Sodaville GPIO support" 851 depends on X86 && PCI && OF 852 select GPIO_GENERIC 853 select GENERIC_IRQ_CHIP 854 help 855 Say Y here to support Intel Sodaville GPIO. 856 857config GPIO_TIMBERDALE 858 bool "Support for timberdale GPIO IP" 859 depends on MFD_TIMBERDALE 860 ---help--- 861 Add support for the GPIO IP in the timberdale FPGA. 862 863comment "SPI GPIO expanders:" 864 865config GPIO_74X164 866 tristate "74x164 serial-in/parallel-out 8-bits shift register" 867 depends on SPI_MASTER && OF 868 help 869 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 870 shift registers. This driver can be used to provide access 871 to more gpio outputs. 872 873config GPIO_MAX7301 874 tristate "Maxim MAX7301 GPIO expander" 875 depends on SPI_MASTER 876 select GPIO_MAX730X 877 help 878 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 879 880config GPIO_MCP23S08 881 tristate "Microchip MCP23xxx I/O expander" 882 depends on (SPI_MASTER && !I2C) || I2C 883 help 884 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 885 I/O expanders. 886 This provides a GPIO interface supporting inputs and outputs. 887 The I2C versions of the chips can be used as interrupt-controller. 888 889config GPIO_MC33880 890 tristate "Freescale MC33880 high-side/low-side switch" 891 depends on SPI_MASTER 892 help 893 SPI driver for Freescale MC33880 high-side/low-side switch. 894 This provides GPIO interface supporting inputs and outputs. 895 896comment "AC97 GPIO expanders:" 897 898config GPIO_UCB1400 899 tristate "Philips UCB1400 GPIO" 900 depends on UCB1400_CORE 901 help 902 This enables support for the Philips UCB1400 GPIO pins. 903 The UCB1400 is an AC97 audio codec. 904 905comment "LPC GPIO expanders:" 906 907config GPIO_KEMPLD 908 tristate "Kontron ETX / COMexpress GPIO" 909 depends on MFD_KEMPLD 910 help 911 This enables support for the PLD GPIO interface on some Kontron ETX 912 and COMexpress (ETXexpress) modules. 913 914 This driver can also be built as a module. If so, the module will be 915 called gpio-kempld. 916 917comment "MODULbus GPIO expanders:" 918 919config GPIO_JANZ_TTL 920 tristate "Janz VMOD-TTL Digital IO Module" 921 depends on MFD_JANZ_CMODIO 922 help 923 This enables support for the Janz VMOD-TTL Digital IO module. 924 This driver provides support for driving the pins in output 925 mode only. Input mode is not supported. 926 927config GPIO_PALMAS 928 bool "TI PALMAS series PMICs GPIO" 929 depends on MFD_PALMAS 930 help 931 Select this option to enable GPIO driver for the TI PALMAS 932 series chip family. 933 934config GPIO_TPS6586X 935 bool "TPS6586X GPIO" 936 depends on MFD_TPS6586X 937 help 938 Select this option to enable GPIO driver for the TPS6586X 939 chip family. 940 941config GPIO_TPS65910 942 bool "TPS65910 GPIO" 943 depends on MFD_TPS65910 944 help 945 Select this option to enable GPIO driver for the TPS65910 946 chip family. 947 948config GPIO_MSIC 949 bool "Intel MSIC mixed signal gpio support" 950 depends on MFD_INTEL_MSIC 951 help 952 Enable support for GPIO on intel MSIC controllers found in 953 intel MID devices 954 955config GPIO_BCM_KONA 956 bool "Broadcom Kona GPIO" 957 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 958 help 959 Turn on GPIO support for Broadcom "Kona" chips. 960 961comment "USB GPIO expanders:" 962 963config GPIO_VIPERBOARD 964 tristate "Viperboard GPIO a & b support" 965 depends on MFD_VIPERBOARD && USB 966 help 967 Say yes here to access the GPIO signals of Nano River 968 Technologies Viperboard. There are two GPIO chips on the 969 board: gpioa and gpiob. 970 See viperboard API specification and Nano 971 River Tech's viperboard.h for detailed meaning 972 of the module parameters. 973 974config GPIO_DLN2 975 tristate "Diolan DLN2 GPIO support" 976 depends on MFD_DLN2 977 select GPIOLIB_IRQCHIP 978 979 help 980 Select this option to enable GPIO driver for the Diolan DLN2 981 board. 982 983 This driver can also be built as a module. If so, the module 984 will be called gpio-dln2. 985 986endif 987