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 486endmenu 487 488menu "Port-mapped I/O GPIO drivers" 489 depends on X86 # Unconditional I/O space access 490 491config GPIO_104_IDIO_16 492 tristate "ACCES 104-IDIO-16 GPIO support" 493 help 494 Enables GPIO support for the ACCES 104-IDIO-16 family. 495 496config GPIO_F7188X 497 tristate "F71869, F71869A, F71882FG and F71889F GPIO support" 498 help 499 This option enables support for GPIOs found on Fintek Super-I/O 500 chips F71869, F71869A, F71882FG and F71889F. 501 502 To compile this driver as a module, choose M here: the module will 503 be called f7188x-gpio. 504 505config GPIO_IT87 506 tristate "IT87xx GPIO support" 507 help 508 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 509 510 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 511 supports the IT8761E Super I/O chip as well. 512 513 To compile this driver as a module, choose M here: the module will 514 be called gpio_it87 515 516config GPIO_SCH 517 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 518 depends on PCI 519 select MFD_CORE 520 select LPC_SCH 521 help 522 Say yes here to support GPIO interface on Intel Poulsbo SCH, 523 Intel Tunnel Creek processor, Intel Centerton processor or 524 Intel Quark X1000 SoC. 525 526 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 527 powered by the core power rail and are turned off during sleep 528 modes (S3 and higher). The remaining four GPIOs are powered by 529 the Intel SCH suspend power supply. These GPIOs remain 530 active during S3. The suspend powered GPIOs can be used to wake the 531 system from the Suspend-to-RAM state. 532 533 The Intel Tunnel Creek processor has 5 GPIOs powered by the 534 core power rail and 9 from suspend power supply. 535 536 The Intel Centerton processor has a total of 30 GPIO pins. 537 Twenty-one are powered by the core power rail and 9 from the 538 suspend power supply. 539 540 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 541 power well and 6 from the suspend power well. 542 543config GPIO_SCH311X 544 tristate "SMSC SCH311x SuperI/O GPIO" 545 help 546 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 547 SCH3116 "Super I/O" chipsets. 548 549 To compile this driver as a module, choose M here: the module will 550 be called gpio-sch311x. 551 552config GPIO_TS5500 553 tristate "TS-5500 DIO blocks and compatibles" 554 depends on TS5500 || COMPILE_TEST 555 help 556 This driver supports Digital I/O exposed by pin blocks found on some 557 Technologic Systems platforms. It includes, but is not limited to, 3 558 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 559 LCD port. 560 561endmenu 562 563menu "I2C GPIO expanders" 564 depends on I2C 565 566config GPIO_ADP5588 567 tristate "ADP5588 I2C GPIO expander" 568 depends on I2C 569 help 570 This option enables support for 18 GPIOs found 571 on Analog Devices ADP5588 GPIO Expanders. 572 573config GPIO_ADP5588_IRQ 574 bool "Interrupt controller support for ADP5588" 575 depends on GPIO_ADP5588=y 576 help 577 Say yes here to enable the adp5588 to be used as an interrupt 578 controller. It requires the driver to be built in the kernel. 579 580config GPIO_ADNP 581 tristate "Avionic Design N-bit GPIO expander" 582 depends on I2C && OF_GPIO 583 select GPIOLIB_IRQCHIP 584 help 585 This option enables support for N GPIOs found on Avionic Design 586 I2C GPIO expanders. The register space will be extended by powers 587 of two, so the controller will need to accommodate for that. For 588 example: if a controller provides 48 pins, 6 registers will be 589 enough to represent all pins, but the driver will assume a 590 register layout for 64 pins (8 registers). 591 592config GPIO_MAX7300 593 tristate "Maxim MAX7300 GPIO expander" 594 depends on I2C 595 select GPIO_MAX730X 596 help 597 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 598 599config GPIO_MAX732X 600 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 601 depends on I2C 602 help 603 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 604 Port Expanders. Each IO port on these chips has a fixed role of 605 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 606 Input and Output (designed by 'P'). The combinations are listed 607 below: 608 609 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 610 max7322 (4I4O), max7323 (4P4O) 611 612 16 bits: max7324 (8I8O), max7325 (8P8O), 613 max7326 (4I12O), max7327 (4P12O) 614 615 Board setup code must specify the model to use, and the start 616 number for these GPIOs. 617 618config GPIO_MAX732X_IRQ 619 bool "Interrupt controller support for MAX732x" 620 depends on GPIO_MAX732X=y 621 select GPIOLIB_IRQCHIP 622 help 623 Say yes here to enable the max732x to be used as an interrupt 624 controller. It requires the driver to be built in the kernel. 625 626config GPIO_MC9S08DZ60 627 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 628 depends on I2C=y && MACH_MX35_3DS 629 help 630 Select this to enable the MC9S08DZ60 GPIO driver 631 632config GPIO_PCA953X 633 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 634 depends on I2C 635 help 636 Say yes here to provide access to several register-oriented 637 SMBus I/O expanders, made mostly by NXP or TI. Compatible 638 models include: 639 640 4 bits: pca9536, pca9537 641 642 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 643 pca9556, pca9557, pca9574, tca6408, xra1202 644 645 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 646 tca6416 647 648 24 bits: tca6424 649 650 40 bits: pca9505, pca9698 651 652config GPIO_PCA953X_IRQ 653 bool "Interrupt controller support for PCA953x" 654 depends on GPIO_PCA953X=y 655 select GPIOLIB_IRQCHIP 656 help 657 Say yes here to enable the pca953x to be used as an interrupt 658 controller. It requires the driver to be built in the kernel. 659 660config GPIO_PCF857X 661 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 662 depends on I2C 663 select GPIOLIB_IRQCHIP 664 select IRQ_DOMAIN 665 help 666 Say yes here to provide access to most "quasi-bidirectional" I2C 667 GPIO expanders used for additional digital outputs or inputs. 668 Most of these parts are from NXP, though TI is a second source for 669 some of them. Compatible models include: 670 671 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 672 pca9670, pca9672, pca9674, pca9674a, 673 max7328, max7329 674 675 16 bits: pcf8575, pcf8575c, pca8575, 676 pca9671, pca9673, pca9675 677 678 Your board setup code will need to declare the expanders in 679 use, and assign numbers to the GPIOs they expose. Those GPIOs 680 can then be used from drivers and other kernel code, just like 681 other GPIOs, but only accessible from task contexts. 682 683 This driver provides an in-kernel interface to those GPIOs using 684 platform-neutral GPIO calls. 685 686config GPIO_SX150X 687 bool "Semtech SX150x I2C GPIO expander" 688 depends on I2C=y 689 select GPIOLIB_IRQCHIP 690 default n 691 help 692 Say yes here to provide support for Semtech SX150-series I2C 693 GPIO expanders. Compatible models include: 694 695 8 bits: sx1508q 696 16 bits: sx1509q 697 698endmenu 699 700menu "MFD GPIO expanders" 701 702config GPIO_ADP5520 703 tristate "GPIO Support for ADP5520 PMIC" 704 depends on PMIC_ADP5520 705 help 706 This option enables support for on-chip GPIO found 707 on Analog Devices ADP5520 PMICs. 708 709config GPIO_ARIZONA 710 tristate "Wolfson Microelectronics Arizona class devices" 711 depends on MFD_ARIZONA 712 help 713 Support for GPIOs on Wolfson Arizona class devices. 714 715config GPIO_CRYSTAL_COVE 716 tristate "GPIO support for Crystal Cove PMIC" 717 depends on INTEL_SOC_PMIC 718 select GPIOLIB_IRQCHIP 719 help 720 Support for GPIO pins on Crystal Cove PMIC. 721 722 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 723 inside. 724 725 This driver can also be built as a module. If so, the module will be 726 called gpio-crystalcove. 727 728config GPIO_CS5535 729 tristate "AMD CS5535/CS5536 GPIO support" 730 depends on MFD_CS5535 731 help 732 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 733 can be used for quite a number of things. The CS5535/6 is found on 734 AMD Geode and Lemote Yeeloong devices. 735 736 If unsure, say N. 737 738config GPIO_DA9052 739 tristate "Dialog DA9052 GPIO" 740 depends on PMIC_DA9052 741 help 742 Say yes here to enable the GPIO driver for the DA9052 chip. 743 744config GPIO_DA9055 745 tristate "Dialog Semiconductor DA9055 GPIO" 746 depends on MFD_DA9055 747 help 748 Say yes here to enable the GPIO driver for the DA9055 chip. 749 750 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 751 be controller by this driver. 752 753 If driver is built as a module it will be called gpio-da9055. 754 755config GPIO_DLN2 756 tristate "Diolan DLN2 GPIO support" 757 depends on MFD_DLN2 758 select GPIOLIB_IRQCHIP 759 760 help 761 Select this option to enable GPIO driver for the Diolan DLN2 762 board. 763 764 This driver can also be built as a module. If so, the module 765 will be called gpio-dln2. 766 767config GPIO_JANZ_TTL 768 tristate "Janz VMOD-TTL Digital IO Module" 769 depends on MFD_JANZ_CMODIO 770 help 771 This enables support for the Janz VMOD-TTL Digital IO module. 772 This driver provides support for driving the pins in output 773 mode only. Input mode is not supported. 774 775config GPIO_KEMPLD 776 tristate "Kontron ETX / COMexpress GPIO" 777 depends on MFD_KEMPLD 778 help 779 This enables support for the PLD GPIO interface on some Kontron ETX 780 and COMexpress (ETXexpress) modules. 781 782 This driver can also be built as a module. If so, the module will be 783 called gpio-kempld. 784 785config GPIO_LP3943 786 tristate "TI/National Semiconductor LP3943 GPIO expander" 787 depends on MFD_LP3943 788 help 789 GPIO driver for LP3943 MFD. 790 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 791 Open drain outputs are required for this usage. 792 793config GPIO_MSIC 794 bool "Intel MSIC mixed signal gpio support" 795 depends on MFD_INTEL_MSIC 796 help 797 Enable support for GPIO on intel MSIC controllers found in 798 intel MID devices 799 800config GPIO_PALMAS 801 bool "TI PALMAS series PMICs GPIO" 802 depends on MFD_PALMAS 803 help 804 Select this option to enable GPIO driver for the TI PALMAS 805 series chip family. 806 807config GPIO_RC5T583 808 bool "RICOH RC5T583 GPIO" 809 depends on MFD_RC5T583 810 help 811 Select this option to enable GPIO driver for the Ricoh RC5T583 812 chip family. 813 This driver provides the support for driving/reading the gpio pins 814 of RC5T583 device through standard gpio library. 815 816config GPIO_STMPE 817 bool "STMPE GPIOs" 818 depends on MFD_STMPE 819 depends on OF_GPIO 820 select GPIOLIB_IRQCHIP 821 help 822 This enables support for the GPIOs found on the STMPE I/O 823 Expanders. 824 825config GPIO_TC3589X 826 bool "TC3589X GPIOs" 827 depends on MFD_TC3589X 828 depends on OF_GPIO 829 select GPIOLIB_IRQCHIP 830 help 831 This enables support for the GPIOs found on the TC3589X 832 I/O Expander. 833 834config GPIO_TIMBERDALE 835 bool "Support for timberdale GPIO IP" 836 depends on MFD_TIMBERDALE 837 ---help--- 838 Add support for the GPIO IP in the timberdale FPGA. 839 840config GPIO_TPS6586X 841 bool "TPS6586X GPIO" 842 depends on MFD_TPS6586X 843 help 844 Select this option to enable GPIO driver for the TPS6586X 845 chip family. 846 847config GPIO_TPS65910 848 bool "TPS65910 GPIO" 849 depends on MFD_TPS65910 850 help 851 Select this option to enable GPIO driver for the TPS65910 852 chip family. 853 854config GPIO_TPS65912 855 tristate "TI TPS65912 GPIO" 856 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) 857 help 858 This driver supports TPS65912 gpio chip 859 860config GPIO_TWL4030 861 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 862 depends on TWL4030_CORE 863 help 864 Say yes here to access the GPIO signals of various multi-function 865 power management chips from Texas Instruments. 866 867config GPIO_TWL6040 868 tristate "TWL6040 GPO" 869 depends on TWL6040_CORE 870 help 871 Say yes here to access the GPO signals of twl6040 872 audio chip from Texas Instruments. 873 874config GPIO_UCB1400 875 tristate "Philips UCB1400 GPIO" 876 depends on UCB1400_CORE 877 help 878 This enables support for the Philips UCB1400 GPIO pins. 879 The UCB1400 is an AC97 audio codec. 880 881config GPIO_WM831X 882 tristate "WM831x GPIOs" 883 depends on MFD_WM831X 884 help 885 Say yes here to access the GPIO signals of WM831x power management 886 chips from Wolfson Microelectronics. 887 888config GPIO_WM8350 889 tristate "WM8350 GPIOs" 890 depends on MFD_WM8350 891 help 892 Say yes here to access the GPIO signals of WM8350 power management 893 chips from Wolfson Microelectronics. 894 895config GPIO_WM8994 896 tristate "WM8994 GPIOs" 897 depends on MFD_WM8994 898 help 899 Say yes here to access the GPIO signals of WM8994 audio hub 900 CODECs from Wolfson Microelectronics. 901 902endmenu 903 904menu "PCI GPIO expanders" 905 depends on PCI 906 907config GPIO_AMD8111 908 tristate "AMD 8111 GPIO driver" 909 depends on PCI 910 help 911 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 912 913 Note, that usually system firmware/ACPI handles GPIO pins on their 914 own and users might easily break their systems with uncarefull usage 915 of this driver! 916 917 If unsure, say N 918 919config GPIO_BT8XX 920 tristate "BT8XX GPIO abuser" 921 depends on PCI && VIDEO_BT848=n 922 help 923 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 924 as a cheap PCI GPIO card. 925 926 This chip can be found on Miro, Hauppauge and STB TV-cards. 927 928 The card needs to be physically altered for using it as a 929 GPIO card. For more information on how to build a GPIO card 930 from a BT8xx TV card, see the documentation file at 931 Documentation/bt8xxgpio.txt 932 933 If unsure, say N. 934 935config GPIO_INTEL_MID 936 bool "Intel Mid GPIO support" 937 depends on PCI && X86 938 select GPIOLIB_IRQCHIP 939 help 940 Say Y here to support Intel Mid GPIO. 941 942config GPIO_ML_IOH 943 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 944 depends on PCI 945 select GENERIC_IRQ_CHIP 946 help 947 ML7213 is companion chip for Intel Atom E6xx series. 948 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 949 Hub) which is for IVI(In-Vehicle Infotainment) use. 950 This driver can access the IOH's GPIO device. 951 952config GPIO_PCH 953 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 954 depends on PCI && (X86_32 || COMPILE_TEST) 955 select GENERIC_IRQ_CHIP 956 help 957 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 958 which is an IOH(Input/Output Hub) for x86 embedded processor. 959 This driver can access PCH GPIO device. 960 961 This driver also can be used for LAPIS Semiconductor IOH(Input/ 962 Output Hub), ML7223 and ML7831. 963 ML7223 IOH is for MP(Media Phone) use. 964 ML7831 IOH is for general purpose use. 965 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 966 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 967 968config GPIO_RDC321X 969 tristate "RDC R-321x GPIO support" 970 depends on PCI 971 select MFD_CORE 972 select MFD_RDC321X 973 help 974 Support for the RDC R321x SoC GPIOs over southbridge 975 PCI configuration space. 976 977config GPIO_SODAVILLE 978 bool "Intel Sodaville GPIO support" 979 depends on X86 && PCI && OF 980 select GPIO_GENERIC 981 select GENERIC_IRQ_CHIP 982 help 983 Say Y here to support Intel Sodaville GPIO. 984 985endmenu 986 987menu "SPI GPIO expanders" 988 depends on SPI_MASTER 989 990config GPIO_74X164 991 tristate "74x164 serial-in/parallel-out 8-bits shift register" 992 depends on SPI_MASTER && OF 993 help 994 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 995 shift registers. This driver can be used to provide access 996 to more gpio outputs. 997 998config GPIO_MAX7301 999 tristate "Maxim MAX7301 GPIO expander" 1000 depends on SPI_MASTER 1001 select GPIO_MAX730X 1002 help 1003 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1004 1005config GPIO_MCP23S08 1006 tristate "Microchip MCP23xxx I/O expander" 1007 depends on (SPI_MASTER && !I2C) || I2C 1008 help 1009 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1010 I/O expanders. 1011 This provides a GPIO interface supporting inputs and outputs. 1012 The I2C versions of the chips can be used as interrupt-controller. 1013 1014config GPIO_MC33880 1015 tristate "Freescale MC33880 high-side/low-side switch" 1016 depends on SPI_MASTER 1017 help 1018 SPI driver for Freescale MC33880 high-side/low-side switch. 1019 This provides GPIO interface supporting inputs and outputs. 1020 1021config GPIO_ZX 1022 bool "ZTE ZX GPIO support" 1023 select GPIOLIB_IRQCHIP 1024 help 1025 Say yes here to support the GPIO device on ZTE ZX SoCs. 1026 1027endmenu 1028 1029menu "USB GPIO expanders" 1030 depends on USB 1031 1032config GPIO_VIPERBOARD 1033 tristate "Viperboard GPIO a & b support" 1034 depends on MFD_VIPERBOARD && USB 1035 help 1036 Say yes here to access the GPIO signals of Nano River 1037 Technologies Viperboard. There are two GPIO chips on the 1038 board: gpioa and gpiob. 1039 See viperboard API specification and Nano 1040 River Tech's viperboard.h for detailed meaning 1041 of the module parameters. 1042 1043endmenu 1044 1045endif 1046