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_AMDPT 123 tristate "AMD Promontory GPIO support" 124 depends on ACPI 125 help 126 driver for GPIO functionality on Promontory IOHub 127 Require ACPI ASL code to enumerate as a platform device. 128 129config GPIO_BCM_KONA 130 bool "Broadcom Kona GPIO" 131 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 132 help 133 Turn on GPIO support for Broadcom "Kona" chips. 134 135config GPIO_BRCMSTB 136 tristate "BRCMSTB GPIO support" 137 default y if ARCH_BRCMSTB 138 depends on OF_GPIO && (ARCH_BRCMSTB || COMPILE_TEST) 139 select GPIO_GENERIC 140 select GPIOLIB_IRQCHIP 141 help 142 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 143 144config GPIO_CLPS711X 145 tristate "CLPS711X GPIO support" 146 depends on ARCH_CLPS711X || COMPILE_TEST 147 select GPIO_GENERIC 148 help 149 Say yes here to support GPIO on CLPS711X SoCs. 150 151config GPIO_DAVINCI 152 bool "TI Davinci/Keystone GPIO support" 153 default y if ARCH_DAVINCI 154 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 155 help 156 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 157 158config GPIO_DWAPB 159 tristate "Synopsys DesignWare APB GPIO driver" 160 select GPIO_GENERIC 161 select GENERIC_IRQ_CHIP 162 help 163 Say Y or M here to build support for the Synopsys DesignWare APB 164 GPIO block. 165 166config GPIO_EM 167 tristate "Emma Mobile GPIO" 168 depends on ARM && OF_GPIO 169 help 170 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 171 172config GPIO_EP93XX 173 def_bool y 174 depends on ARCH_EP93XX 175 select GPIO_GENERIC 176 177config GPIO_ETRAXFS 178 bool "Axis ETRAX FS General I/O" 179 depends on CRIS || COMPILE_TEST 180 depends on OF 181 select GPIO_GENERIC 182 select GPIOLIB_IRQCHIP 183 help 184 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 185 186config GPIO_GE_FPGA 187 bool "GE FPGA based GPIO" 188 depends on GE_FPGA 189 select GPIO_GENERIC 190 help 191 Support for common GPIO functionality provided on some GE Single Board 192 Computers. 193 194 This driver provides basic support (configure as input or output, read 195 and write pin state) for GPIO implemented in a number of GE single 196 board computers. 197 198config GPIO_GENERIC_PLATFORM 199 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 200 select GPIO_GENERIC 201 help 202 Say yes here to support basic platform_device memory-mapped GPIO controllers. 203 204config GPIO_GRGPIO 205 tristate "Aeroflex Gaisler GRGPIO support" 206 depends on OF 207 select GPIO_GENERIC 208 select IRQ_DOMAIN 209 help 210 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 211 VHDL IP core library. 212 213config GPIO_ICH 214 tristate "Intel ICH GPIO" 215 depends on PCI && X86 216 select MFD_CORE 217 select LPC_ICH 218 help 219 Say yes here to support the GPIO functionality of a number of Intel 220 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 221 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 222 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 223 224 If unsure, say N. 225 226config GPIO_IOP 227 tristate "Intel IOP GPIO" 228 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 229 help 230 Say yes here to support the GPIO functionality of a number of Intel 231 IOP32X or IOP33X. 232 233 If unsure, say N. 234 235config GPIO_LOONGSON 236 bool "Loongson-2/3 GPIO support" 237 depends on CPU_LOONGSON2 || CPU_LOONGSON3 238 help 239 driver for GPIO functionality on Loongson-2F/3A/3B processors. 240 241config GPIO_LPC18XX 242 bool "NXP LPC18XX/43XX GPIO support" 243 default y if ARCH_LPC18XX 244 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 245 help 246 Select this option to enable GPIO driver for 247 NXP LPC18XX/43XX devices. 248 249config GPIO_LYNXPOINT 250 tristate "Intel Lynxpoint GPIO support" 251 depends on ACPI && X86 252 select GPIOLIB_IRQCHIP 253 help 254 driver for GPIO functionality on Intel Lynxpoint PCH chipset 255 Requires ACPI device enumeration code to set up a platform device. 256 257config GPIO_MB86S7X 258 bool "GPIO support for Fujitsu MB86S7x Platforms" 259 depends on ARCH_MB86S7X 260 help 261 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 262 263config GPIO_MM_LANTIQ 264 bool "Lantiq Memory mapped GPIOs" 265 depends on LANTIQ && SOC_XWAY 266 help 267 This enables support for memory mapped GPIOs on the External Bus Unit 268 (EBU) found on Lantiq SoCs. The gpios are output only as they are 269 created by attaching a 16bit latch to the bus. 270 271config GPIO_MOXART 272 bool "MOXART GPIO support" 273 depends on ARCH_MOXART 274 select GPIO_GENERIC 275 help 276 Select this option to enable GPIO driver for 277 MOXA ART SoC devices. 278 279config GPIO_MPC5200 280 def_bool y 281 depends on PPC_MPC52xx 282 283config GPIO_MPC8XXX 284 bool "MPC512x/MPC8xxx GPIO support" 285 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 286 FSL_SOC_BOOKE || PPC_86xx 287 help 288 Say Y here if you're going to use hardware that connects to the 289 MPC512x/831x/834x/837x/8572/8610 GPIOs. 290 291config GPIO_MVEBU 292 def_bool y 293 depends on PLAT_ORION 294 depends on OF 295 select GENERIC_IRQ_CHIP 296 297config GPIO_MXC 298 def_bool y 299 depends on ARCH_MXC 300 select GPIO_GENERIC 301 select GENERIC_IRQ_CHIP 302 303config GPIO_MXS 304 def_bool y 305 depends on ARCH_MXS 306 select GPIO_GENERIC 307 select GENERIC_IRQ_CHIP 308 309config GPIO_OCTEON 310 tristate "Cavium OCTEON GPIO" 311 depends on GPIOLIB && CAVIUM_OCTEON_SOC 312 default y 313 help 314 Say yes here to support the on-chip GPIO lines on the OCTEON 315 family of SOCs. 316 317config GPIO_OMAP 318 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 319 default y if ARCH_OMAP 320 depends on ARM 321 select GENERIC_IRQ_CHIP 322 select GPIOLIB_IRQCHIP 323 help 324 Say yes here to enable GPIO support for TI OMAP SoCs. 325 326config GPIO_PL061 327 bool "PrimeCell PL061 GPIO support" 328 depends on ARM_AMBA 329 select IRQ_DOMAIN 330 select GPIOLIB_IRQCHIP 331 help 332 Say yes here to support the PrimeCell PL061 GPIO device 333 334config GPIO_PXA 335 bool "PXA GPIO support" 336 depends on ARCH_PXA || ARCH_MMP 337 help 338 Say yes here to support the PXA GPIO device 339 340config GPIO_RCAR 341 tristate "Renesas R-Car GPIO" 342 depends on ARCH_SHMOBILE || COMPILE_TEST 343 select GPIOLIB_IRQCHIP 344 help 345 Say yes here to support GPIO on Renesas R-Car SoCs. 346 347config GPIO_SAMSUNG 348 bool 349 depends on PLAT_SAMSUNG 350 help 351 Legacy GPIO support. Use only for platforms without support for 352 pinctrl. 353 354config GPIO_SPEAR_SPICS 355 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 356 depends on PLAT_SPEAR 357 select GENERIC_IRQ_CHIP 358 help 359 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 360 361config GPIO_STA2X11 362 bool "STA2x11/ConneXt GPIO support" 363 depends on MFD_STA2X11 364 select GENERIC_IRQ_CHIP 365 help 366 Say yes here to support the STA2x11/ConneXt GPIO device. 367 The GPIO module has 128 GPIO pins with alternate functions. 368 369config GPIO_STP_XWAY 370 bool "XWAY STP GPIOs" 371 depends on SOC_XWAY 372 help 373 This enables support for the Serial To Parallel (STP) unit found on 374 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 375 that can be up to 24 bit. This peripheral is aimed at driving leds. 376 Some of the gpios/leds can be auto updated by the soc with dsl and 377 phy status. 378 379config GPIO_SYSCON 380 tristate "GPIO based on SYSCON" 381 depends on MFD_SYSCON && OF 382 help 383 Say yes here to support GPIO functionality though SYSCON driver. 384 385config GPIO_TB10X 386 bool 387 select GENERIC_IRQ_CHIP 388 select OF_GPIO 389 390config GPIO_TZ1090 391 bool "Toumaz Xenif TZ1090 GPIO support" 392 depends on SOC_TZ1090 393 select GENERIC_IRQ_CHIP 394 default y 395 help 396 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 397 398config GPIO_TZ1090_PDC 399 bool "Toumaz Xenif TZ1090 PDC GPIO support" 400 depends on SOC_TZ1090 401 default y 402 help 403 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 404 405config GPIO_VF610 406 def_bool y 407 depends on ARCH_MXC && SOC_VF610 408 select GPIOLIB_IRQCHIP 409 help 410 Say yes here to support Vybrid vf610 GPIOs. 411 412config GPIO_VR41XX 413 tristate "NEC VR4100 series General-purpose I/O Uint support" 414 depends on CPU_VR41XX 415 help 416 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 417 418config GPIO_VX855 419 tristate "VIA VX855/VX875 GPIO" 420 depends on PCI 421 select MFD_CORE 422 select MFD_VX855 423 help 424 Support access to the VX855/VX875 GPIO lines through the gpio library. 425 426 This driver provides common support for accessing the device, 427 additional drivers must be enabled in order to use the 428 functionality of the device. 429 430config GPIO_XGENE 431 bool "APM X-Gene GPIO controller support" 432 depends on ARM64 && OF_GPIO 433 help 434 This driver is to support the GPIO block within the APM X-Gene SoC 435 platform's generic flash controller. The GPIO pins are muxed with 436 the generic flash controller's address and data pins. Say yes 437 here to enable the GFC GPIO functionality. 438 439config GPIO_XGENE_SB 440 tristate "APM X-Gene GPIO standby controller support" 441 depends on ARCH_XGENE && OF_GPIO 442 select GPIO_GENERIC 443 help 444 This driver supports the GPIO block within the APM X-Gene 445 Standby Domain. Say yes here to enable the GPIO functionality. 446 447config GPIO_XILINX 448 tristate "Xilinx GPIO support" 449 depends on OF_GPIO 450 help 451 Say yes here to support the Xilinx FPGA GPIO device 452 453config GPIO_XLP 454 tristate "Netlogic XLP GPIO support" 455 depends on CPU_XLP && OF_GPIO 456 select GPIOLIB_IRQCHIP 457 help 458 This driver provides support for GPIO interface on Netlogic XLP MIPS64 459 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 460 XLP9XX and XLP5XX. 461 462 If unsure, say N. 463 464config GPIO_XTENSA 465 bool "Xtensa GPIO32 support" 466 depends on XTENSA 467 depends on HAVE_XTENSA_GPIO32 468 depends on !SMP 469 help 470 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 471 and EXPSTATE (output) ports 472 473config GPIO_ZEVIO 474 bool "LSI ZEVIO SoC memory mapped GPIOs" 475 depends on ARM && OF_GPIO 476 help 477 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 478 479config GPIO_ZYNQ 480 tristate "Xilinx Zynq GPIO support" 481 depends on ARCH_ZYNQ || ARCH_ZYNQMP 482 select GPIOLIB_IRQCHIP 483 help 484 Say yes here to support Xilinx Zynq GPIO controller. 485 486config GPIO_ZX 487 bool "ZTE ZX GPIO support" 488 select GPIOLIB_IRQCHIP 489 help 490 Say yes here to support the GPIO device on ZTE ZX SoCs. 491 492endmenu 493 494menu "Port-mapped I/O GPIO drivers" 495 depends on X86 # Unconditional I/O space access 496 497config GPIO_104_IDIO_16 498 tristate "ACCES 104-IDIO-16 GPIO support" 499 help 500 Enables GPIO support for the ACCES 104-IDIO-16 family. 501 502config GPIO_F7188X 503 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 504 help 505 This option enables support for GPIOs found on Fintek Super-I/O 506 chips F71869, F71869A, F71882FG and F71889F. 507 508 To compile this driver as a module, choose M here: the module will 509 be called f7188x-gpio. 510 511config GPIO_IT87 512 tristate "IT87xx GPIO support" 513 help 514 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 515 516 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 517 supports the IT8761E Super I/O chip as well. 518 519 To compile this driver as a module, choose M here: the module will 520 be called gpio_it87 521 522config GPIO_SCH 523 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 524 depends on PCI 525 select MFD_CORE 526 select LPC_SCH 527 help 528 Say yes here to support GPIO interface on Intel Poulsbo SCH, 529 Intel Tunnel Creek processor, Intel Centerton processor or 530 Intel Quark X1000 SoC. 531 532 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 533 powered by the core power rail and are turned off during sleep 534 modes (S3 and higher). The remaining four GPIOs are powered by 535 the Intel SCH suspend power supply. These GPIOs remain 536 active during S3. The suspend powered GPIOs can be used to wake the 537 system from the Suspend-to-RAM state. 538 539 The Intel Tunnel Creek processor has 5 GPIOs powered by the 540 core power rail and 9 from suspend power supply. 541 542 The Intel Centerton processor has a total of 30 GPIO pins. 543 Twenty-one are powered by the core power rail and 9 from the 544 suspend power supply. 545 546 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 547 power well and 6 from the suspend power well. 548 549config GPIO_SCH311X 550 tristate "SMSC SCH311x SuperI/O GPIO" 551 help 552 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 553 SCH3116 "Super I/O" chipsets. 554 555 To compile this driver as a module, choose M here: the module will 556 be called gpio-sch311x. 557 558config GPIO_TS5500 559 tristate "TS-5500 DIO blocks and compatibles" 560 depends on TS5500 || COMPILE_TEST 561 help 562 This driver supports Digital I/O exposed by pin blocks found on some 563 Technologic Systems platforms. It includes, but is not limited to, 3 564 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 565 LCD port. 566 567endmenu 568 569menu "I2C GPIO expanders" 570 depends on I2C 571 572config GPIO_ADP5588 573 tristate "ADP5588 I2C GPIO expander" 574 help 575 This option enables support for 18 GPIOs found 576 on Analog Devices ADP5588 GPIO Expanders. 577 578config GPIO_ADP5588_IRQ 579 bool "Interrupt controller support for ADP5588" 580 depends on GPIO_ADP5588=y 581 help 582 Say yes here to enable the adp5588 to be used as an interrupt 583 controller. It requires the driver to be built in the kernel. 584 585config GPIO_ADNP 586 tristate "Avionic Design N-bit GPIO expander" 587 depends on OF_GPIO 588 select GPIOLIB_IRQCHIP 589 help 590 This option enables support for N GPIOs found on Avionic Design 591 I2C GPIO expanders. The register space will be extended by powers 592 of two, so the controller will need to accommodate for that. For 593 example: if a controller provides 48 pins, 6 registers will be 594 enough to represent all pins, but the driver will assume a 595 register layout for 64 pins (8 registers). 596 597config GPIO_MAX7300 598 tristate "Maxim MAX7300 GPIO expander" 599 select GPIO_MAX730X 600 help 601 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 602 603config GPIO_MAX732X 604 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 605 help 606 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 607 Port Expanders. Each IO port on these chips has a fixed role of 608 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 609 Input and Output (designed by 'P'). The combinations are listed 610 below: 611 612 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 613 max7322 (4I4O), max7323 (4P4O) 614 615 16 bits: max7324 (8I8O), max7325 (8P8O), 616 max7326 (4I12O), max7327 (4P12O) 617 618 Board setup code must specify the model to use, and the start 619 number for these GPIOs. 620 621config GPIO_MAX732X_IRQ 622 bool "Interrupt controller support for MAX732x" 623 depends on GPIO_MAX732X=y 624 select GPIOLIB_IRQCHIP 625 help 626 Say yes here to enable the max732x to be used as an interrupt 627 controller. It requires the driver to be built in the kernel. 628 629config GPIO_MC9S08DZ60 630 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 631 depends on I2C=y && MACH_MX35_3DS 632 help 633 Select this to enable the MC9S08DZ60 GPIO driver 634 635config GPIO_PCA953X 636 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 637 help 638 Say yes here to provide access to several register-oriented 639 SMBus I/O expanders, made mostly by NXP or TI. Compatible 640 models include: 641 642 4 bits: pca9536, pca9537 643 644 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 645 pca9556, pca9557, pca9574, tca6408, xra1202 646 647 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 648 tca6416 649 650 24 bits: tca6424 651 652 40 bits: pca9505, pca9698 653 654config GPIO_PCA953X_IRQ 655 bool "Interrupt controller support for PCA953x" 656 depends on GPIO_PCA953X=y 657 select GPIOLIB_IRQCHIP 658 help 659 Say yes here to enable the pca953x to be used as an interrupt 660 controller. It requires the driver to be built in the kernel. 661 662config GPIO_PCF857X 663 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 664 select GPIOLIB_IRQCHIP 665 select IRQ_DOMAIN 666 help 667 Say yes here to provide access to most "quasi-bidirectional" I2C 668 GPIO expanders used for additional digital outputs or inputs. 669 Most of these parts are from NXP, though TI is a second source for 670 some of them. Compatible models include: 671 672 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 673 pca9670, pca9672, pca9674, pca9674a, 674 max7328, max7329 675 676 16 bits: pcf8575, pcf8575c, pca8575, 677 pca9671, pca9673, pca9675 678 679 Your board setup code will need to declare the expanders in 680 use, and assign numbers to the GPIOs they expose. Those GPIOs 681 can then be used from drivers and other kernel code, just like 682 other GPIOs, but only accessible from task contexts. 683 684 This driver provides an in-kernel interface to those GPIOs using 685 platform-neutral GPIO calls. 686 687config GPIO_SX150X 688 bool "Semtech SX150x I2C GPIO expander" 689 depends on I2C=y 690 select GPIOLIB_IRQCHIP 691 default n 692 help 693 Say yes here to provide support for Semtech SX150-series I2C 694 GPIO expanders. Compatible models include: 695 696 8 bits: sx1508q 697 16 bits: sx1509q 698 699endmenu 700 701menu "MFD GPIO expanders" 702 703config GPIO_ADP5520 704 tristate "GPIO Support for ADP5520 PMIC" 705 depends on PMIC_ADP5520 706 help 707 This option enables support for on-chip GPIO found 708 on Analog Devices ADP5520 PMICs. 709 710config GPIO_ARIZONA 711 tristate "Wolfson Microelectronics Arizona class devices" 712 depends on MFD_ARIZONA 713 help 714 Support for GPIOs on Wolfson Arizona class devices. 715 716config GPIO_CRYSTAL_COVE 717 tristate "GPIO support for Crystal Cove PMIC" 718 depends on INTEL_SOC_PMIC 719 select GPIOLIB_IRQCHIP 720 help 721 Support for GPIO pins on Crystal Cove PMIC. 722 723 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 724 inside. 725 726 This driver can also be built as a module. If so, the module will be 727 called gpio-crystalcove. 728 729config GPIO_CS5535 730 tristate "AMD CS5535/CS5536 GPIO support" 731 depends on MFD_CS5535 732 help 733 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 734 can be used for quite a number of things. The CS5535/6 is found on 735 AMD Geode and Lemote Yeeloong devices. 736 737 If unsure, say N. 738 739config GPIO_DA9052 740 tristate "Dialog DA9052 GPIO" 741 depends on PMIC_DA9052 742 help 743 Say yes here to enable the GPIO driver for the DA9052 chip. 744 745config GPIO_DA9055 746 tristate "Dialog Semiconductor DA9055 GPIO" 747 depends on MFD_DA9055 748 help 749 Say yes here to enable the GPIO driver for the DA9055 chip. 750 751 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 752 be controller by this driver. 753 754 If driver is built as a module it will be called gpio-da9055. 755 756config GPIO_DLN2 757 tristate "Diolan DLN2 GPIO support" 758 depends on MFD_DLN2 759 select GPIOLIB_IRQCHIP 760 761 help 762 Select this option to enable GPIO driver for the Diolan DLN2 763 board. 764 765 This driver can also be built as a module. If so, the module 766 will be called gpio-dln2. 767 768config GPIO_JANZ_TTL 769 tristate "Janz VMOD-TTL Digital IO Module" 770 depends on MFD_JANZ_CMODIO 771 help 772 This enables support for the Janz VMOD-TTL Digital IO module. 773 This driver provides support for driving the pins in output 774 mode only. Input mode is not supported. 775 776config GPIO_KEMPLD 777 tristate "Kontron ETX / COMexpress GPIO" 778 depends on MFD_KEMPLD 779 help 780 This enables support for the PLD GPIO interface on some Kontron ETX 781 and COMexpress (ETXexpress) modules. 782 783 This driver can also be built as a module. If so, the module will be 784 called gpio-kempld. 785 786config GPIO_LP3943 787 tristate "TI/National Semiconductor LP3943 GPIO expander" 788 depends on MFD_LP3943 789 help 790 GPIO driver for LP3943 MFD. 791 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 792 Open drain outputs are required for this usage. 793 794config GPIO_MSIC 795 bool "Intel MSIC mixed signal gpio support" 796 depends on MFD_INTEL_MSIC 797 help 798 Enable support for GPIO on intel MSIC controllers found in 799 intel MID devices 800 801config GPIO_PALMAS 802 bool "TI PALMAS series PMICs GPIO" 803 depends on MFD_PALMAS 804 help 805 Select this option to enable GPIO driver for the TI PALMAS 806 series chip family. 807 808config GPIO_RC5T583 809 bool "RICOH RC5T583 GPIO" 810 depends on MFD_RC5T583 811 help 812 Select this option to enable GPIO driver for the Ricoh RC5T583 813 chip family. 814 This driver provides the support for driving/reading the gpio pins 815 of RC5T583 device through standard gpio library. 816 817config GPIO_STMPE 818 bool "STMPE GPIOs" 819 depends on MFD_STMPE 820 depends on OF_GPIO 821 select GPIOLIB_IRQCHIP 822 help 823 This enables support for the GPIOs found on the STMPE I/O 824 Expanders. 825 826config GPIO_TC3589X 827 bool "TC3589X GPIOs" 828 depends on MFD_TC3589X 829 depends on OF_GPIO 830 select GPIOLIB_IRQCHIP 831 help 832 This enables support for the GPIOs found on the TC3589X 833 I/O Expander. 834 835config GPIO_TIMBERDALE 836 bool "Support for timberdale GPIO IP" 837 depends on MFD_TIMBERDALE 838 ---help--- 839 Add support for the GPIO IP in the timberdale FPGA. 840 841config GPIO_TPS6586X 842 bool "TPS6586X GPIO" 843 depends on MFD_TPS6586X 844 help 845 Select this option to enable GPIO driver for the TPS6586X 846 chip family. 847 848config GPIO_TPS65910 849 bool "TPS65910 GPIO" 850 depends on MFD_TPS65910 851 help 852 Select this option to enable GPIO driver for the TPS65910 853 chip family. 854 855config GPIO_TPS65912 856 tristate "TI TPS65912 GPIO" 857 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 858 help 859 This driver supports TPS65912 gpio chip 860 861config GPIO_TWL4030 862 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 863 depends on TWL4030_CORE 864 help 865 Say yes here to access the GPIO signals of various multi-function 866 power management chips from Texas Instruments. 867 868config GPIO_TWL6040 869 tristate "TWL6040 GPO" 870 depends on TWL6040_CORE 871 help 872 Say yes here to access the GPO signals of twl6040 873 audio chip from Texas Instruments. 874 875config GPIO_UCB1400 876 tristate "Philips UCB1400 GPIO" 877 depends on UCB1400_CORE 878 help 879 This enables support for the Philips UCB1400 GPIO pins. 880 The UCB1400 is an AC97 audio codec. 881 882config GPIO_WM831X 883 tristate "WM831x GPIOs" 884 depends on MFD_WM831X 885 help 886 Say yes here to access the GPIO signals of WM831x power management 887 chips from Wolfson Microelectronics. 888 889config GPIO_WM8350 890 tristate "WM8350 GPIOs" 891 depends on MFD_WM8350 892 help 893 Say yes here to access the GPIO signals of WM8350 power management 894 chips from Wolfson Microelectronics. 895 896config GPIO_WM8994 897 tristate "WM8994 GPIOs" 898 depends on MFD_WM8994 899 help 900 Say yes here to access the GPIO signals of WM8994 audio hub 901 CODECs from Wolfson Microelectronics. 902 903endmenu 904 905menu "PCI GPIO expanders" 906 depends on PCI 907 908config GPIO_AMD8111 909 tristate "AMD 8111 GPIO driver" 910 depends on PCI 911 help 912 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 913 914 Note, that usually system firmware/ACPI handles GPIO pins on their 915 own and users might easily break their systems with uncarefull usage 916 of this driver! 917 918 If unsure, say N 919 920config GPIO_BT8XX 921 tristate "BT8XX GPIO abuser" 922 depends on PCI && VIDEO_BT848=n 923 help 924 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 925 as a cheap PCI GPIO card. 926 927 This chip can be found on Miro, Hauppauge and STB TV-cards. 928 929 The card needs to be physically altered for using it as a 930 GPIO card. For more information on how to build a GPIO card 931 from a BT8xx TV card, see the documentation file at 932 Documentation/bt8xxgpio.txt 933 934 If unsure, say N. 935 936config GPIO_INTEL_MID 937 bool "Intel Mid GPIO support" 938 depends on PCI && X86 939 select GPIOLIB_IRQCHIP 940 help 941 Say Y here to support Intel Mid GPIO. 942 943config GPIO_ML_IOH 944 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 945 depends on PCI 946 select GENERIC_IRQ_CHIP 947 help 948 ML7213 is companion chip for Intel Atom E6xx series. 949 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 950 Hub) which is for IVI(In-Vehicle Infotainment) use. 951 This driver can access the IOH's GPIO device. 952 953config GPIO_PCH 954 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 955 depends on PCI && (X86_32 || COMPILE_TEST) 956 select GENERIC_IRQ_CHIP 957 help 958 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 959 which is an IOH(Input/Output Hub) for x86 embedded processor. 960 This driver can access PCH GPIO device. 961 962 This driver also can be used for LAPIS Semiconductor IOH(Input/ 963 Output Hub), ML7223 and ML7831. 964 ML7223 IOH is for MP(Media Phone) use. 965 ML7831 IOH is for general purpose use. 966 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 967 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 968 969config GPIO_RDC321X 970 tristate "RDC R-321x GPIO support" 971 depends on PCI 972 select MFD_CORE 973 select MFD_RDC321X 974 help 975 Support for the RDC R321x SoC GPIOs over southbridge 976 PCI configuration space. 977 978config GPIO_SODAVILLE 979 bool "Intel Sodaville GPIO support" 980 depends on X86 && PCI && OF 981 select GPIO_GENERIC 982 select GENERIC_IRQ_CHIP 983 help 984 Say Y here to support Intel Sodaville GPIO. 985 986endmenu 987 988menu "SPI GPIO expanders" 989 depends on SPI_MASTER 990 991config GPIO_74X164 992 tristate "74x164 serial-in/parallel-out 8-bits shift register" 993 depends on OF 994 help 995 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 996 shift registers. This driver can be used to provide access 997 to more gpio outputs. 998 999config GPIO_MAX7301 1000 tristate "Maxim MAX7301 GPIO expander" 1001 select GPIO_MAX730X 1002 help 1003 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1004 1005config GPIO_MC33880 1006 tristate "Freescale MC33880 high-side/low-side switch" 1007 help 1008 SPI driver for Freescale MC33880 high-side/low-side switch. 1009 This provides GPIO interface supporting inputs and outputs. 1010 1011endmenu 1012 1013menu "SPI or I2C GPIO expanders" 1014 depends on (SPI_MASTER && !I2C) || I2C 1015 1016config GPIO_MCP23S08 1017 tristate "Microchip MCP23xxx I/O expander" 1018 help 1019 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1020 I/O expanders. 1021 This provides a GPIO interface supporting inputs and outputs. 1022 The I2C versions of the chips can be used as interrupt-controller. 1023 1024endmenu 1025 1026menu "USB GPIO expanders" 1027 depends on USB 1028 1029config GPIO_VIPERBOARD 1030 tristate "Viperboard GPIO a & b support" 1031 depends on MFD_VIPERBOARD && USB 1032 help 1033 Say yes here to access the GPIO signals of Nano River 1034 Technologies Viperboard. There are two GPIO chips on the 1035 board: gpioa and gpiob. 1036 See viperboard API specification and Nano 1037 River Tech's viperboard.h for detailed meaning 1038 of the module parameters. 1039 1040endmenu 1041 1042endif 1043