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 select ANON_INODES 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 select GPIO_GENERIC 126 help 127 driver for GPIO functionality on Promontory IOHub 128 Require ACPI ASL code to enumerate as a platform device. 129 130config GPIO_ATH79 131 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 132 default y if ATH79 133 depends on ATH79 || COMPILE_TEST 134 select GPIO_GENERIC 135 select GPIOLIB_IRQCHIP 136 help 137 Select this option to enable GPIO driver for 138 Atheros AR71XX/AR724X/AR913X SoC devices. 139 140config GPIO_BCM_KONA 141 bool "Broadcom Kona GPIO" 142 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 143 help 144 Turn on GPIO support for Broadcom "Kona" chips. 145 146config GPIO_BRCMSTB 147 tristate "BRCMSTB GPIO support" 148 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 149 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 150 select GPIO_GENERIC 151 select GPIOLIB_IRQCHIP 152 help 153 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 154 155config GPIO_CLPS711X 156 tristate "CLPS711X GPIO support" 157 depends on ARCH_CLPS711X || COMPILE_TEST 158 select GPIO_GENERIC 159 help 160 Say yes here to support GPIO on CLPS711X SoCs. 161 162config GPIO_DAVINCI 163 bool "TI Davinci/Keystone GPIO support" 164 default y if ARCH_DAVINCI 165 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 166 help 167 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 168 169config GPIO_DWAPB 170 tristate "Synopsys DesignWare APB GPIO driver" 171 select GPIO_GENERIC 172 select GENERIC_IRQ_CHIP 173 help 174 Say Y or M here to build support for the Synopsys DesignWare APB 175 GPIO block. 176 177config GPIO_EM 178 tristate "Emma Mobile GPIO" 179 depends on ARM && OF_GPIO 180 help 181 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 182 183config GPIO_EP93XX 184 def_bool y 185 depends on ARCH_EP93XX 186 select GPIO_GENERIC 187 188config GPIO_ETRAXFS 189 bool "Axis ETRAX FS General I/O" 190 depends on CRIS || COMPILE_TEST 191 depends on OF 192 select GPIO_GENERIC 193 select GPIOLIB_IRQCHIP 194 help 195 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 196 197config GPIO_GE_FPGA 198 bool "GE FPGA based GPIO" 199 depends on GE_FPGA 200 select GPIO_GENERIC 201 help 202 Support for common GPIO functionality provided on some GE Single Board 203 Computers. 204 205 This driver provides basic support (configure as input or output, read 206 and write pin state) for GPIO implemented in a number of GE single 207 board computers. 208 209config GPIO_GENERIC_PLATFORM 210 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 211 select GPIO_GENERIC 212 help 213 Say yes here to support basic platform_device memory-mapped GPIO controllers. 214 215config GPIO_GRGPIO 216 tristate "Aeroflex Gaisler GRGPIO support" 217 depends on OF 218 select GPIO_GENERIC 219 select IRQ_DOMAIN 220 help 221 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 222 VHDL IP core library. 223 224config GPIO_ICH 225 tristate "Intel ICH GPIO" 226 depends on PCI && X86 227 select MFD_CORE 228 select LPC_ICH 229 help 230 Say yes here to support the GPIO functionality of a number of Intel 231 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 232 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 233 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 234 235 If unsure, say N. 236 237config GPIO_IOP 238 tristate "Intel IOP GPIO" 239 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 240 help 241 Say yes here to support the GPIO functionality of a number of Intel 242 IOP32X or IOP33X. 243 244 If unsure, say N. 245 246config GPIO_LOONGSON 247 bool "Loongson-2/3 GPIO support" 248 depends on CPU_LOONGSON2 || CPU_LOONGSON3 249 help 250 driver for GPIO functionality on Loongson-2F/3A/3B processors. 251 252config GPIO_LPC18XX 253 bool "NXP LPC18XX/43XX GPIO support" 254 default y if ARCH_LPC18XX 255 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 256 help 257 Select this option to enable GPIO driver for 258 NXP LPC18XX/43XX devices. 259 260config GPIO_LYNXPOINT 261 tristate "Intel Lynxpoint GPIO support" 262 depends on ACPI && X86 263 select GPIOLIB_IRQCHIP 264 help 265 driver for GPIO functionality on Intel Lynxpoint PCH chipset 266 Requires ACPI device enumeration code to set up a platform device. 267 268config GPIO_MB86S7X 269 bool "GPIO support for Fujitsu MB86S7x Platforms" 270 depends on ARCH_MB86S7X || COMPILE_TEST 271 help 272 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 273 274config GPIO_MENZ127 275 tristate "MEN 16Z127 GPIO support" 276 depends on MCB 277 select GPIO_GENERIC 278 help 279 Say yes here to support the MEN 16Z127 GPIO Controller 280 281config GPIO_MM_LANTIQ 282 bool "Lantiq Memory mapped GPIOs" 283 depends on LANTIQ && SOC_XWAY 284 help 285 This enables support for memory mapped GPIOs on the External Bus Unit 286 (EBU) found on Lantiq SoCs. The gpios are output only as they are 287 created by attaching a 16bit latch to the bus. 288 289config GPIO_MOXART 290 bool "MOXART GPIO support" 291 depends on ARCH_MOXART || COMPILE_TEST 292 select GPIO_GENERIC 293 help 294 Select this option to enable GPIO driver for 295 MOXA ART SoC devices. 296 297config GPIO_MPC5200 298 def_bool y 299 depends on PPC_MPC52xx 300 301config GPIO_MPC8XXX 302 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 303 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 304 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 305 COMPILE_TEST 306 select GPIO_GENERIC 307 select IRQ_DOMAIN 308 help 309 Say Y here if you're going to use hardware that connects to the 310 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 311 312config GPIO_MVEBU 313 def_bool y 314 depends on PLAT_ORION 315 depends on OF 316 select GENERIC_IRQ_CHIP 317 318config GPIO_MXC 319 def_bool y 320 depends on ARCH_MXC 321 select GPIO_GENERIC 322 select GENERIC_IRQ_CHIP 323 324config GPIO_MXS 325 def_bool y 326 depends on ARCH_MXS 327 select GPIO_GENERIC 328 select GENERIC_IRQ_CHIP 329 330config GPIO_OCTEON 331 tristate "Cavium OCTEON GPIO" 332 depends on GPIOLIB && CAVIUM_OCTEON_SOC 333 default y 334 help 335 Say yes here to support the on-chip GPIO lines on the OCTEON 336 family of SOCs. 337 338config GPIO_OMAP 339 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 340 default y if ARCH_OMAP 341 depends on ARM 342 select GENERIC_IRQ_CHIP 343 select GPIOLIB_IRQCHIP 344 help 345 Say yes here to enable GPIO support for TI OMAP SoCs. 346 347config GPIO_PL061 348 bool "PrimeCell PL061 GPIO support" 349 depends on ARM_AMBA 350 select IRQ_DOMAIN 351 select GPIOLIB_IRQCHIP 352 help 353 Say yes here to support the PrimeCell PL061 GPIO device 354 355config GPIO_PXA 356 bool "PXA GPIO support" 357 depends on ARCH_PXA || ARCH_MMP 358 help 359 Say yes here to support the PXA GPIO device 360 361config GPIO_RCAR 362 tristate "Renesas R-Car GPIO" 363 depends on ARCH_RENESAS || COMPILE_TEST 364 select GPIOLIB_IRQCHIP 365 help 366 Say yes here to support GPIO on Renesas R-Car SoCs. 367 368config GPIO_SPEAR_SPICS 369 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 370 depends on PLAT_SPEAR 371 select GENERIC_IRQ_CHIP 372 help 373 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 374 375config GPIO_STA2X11 376 bool "STA2x11/ConneXt GPIO support" 377 depends on MFD_STA2X11 378 select GENERIC_IRQ_CHIP 379 help 380 Say yes here to support the STA2x11/ConneXt GPIO device. 381 The GPIO module has 128 GPIO pins with alternate functions. 382 383config GPIO_STP_XWAY 384 bool "XWAY STP GPIOs" 385 depends on SOC_XWAY 386 help 387 This enables support for the Serial To Parallel (STP) unit found on 388 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 389 that can be up to 24 bit. This peripheral is aimed at driving leds. 390 Some of the gpios/leds can be auto updated by the soc with dsl and 391 phy status. 392 393config GPIO_SYSCON 394 tristate "GPIO based on SYSCON" 395 depends on MFD_SYSCON && OF 396 help 397 Say yes here to support GPIO functionality though SYSCON driver. 398 399config GPIO_TB10X 400 bool 401 select GENERIC_IRQ_CHIP 402 select OF_GPIO 403 404config GPIO_TEGRA 405 bool "NVIDIA Tegra GPIO support" 406 default ARCH_TEGRA 407 depends on ARCH_TEGRA || COMPILE_TEST 408 depends on OF 409 help 410 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 411 412config GPIO_TS4800 413 tristate "TS-4800 DIO blocks and compatibles" 414 depends on OF_GPIO 415 depends on SOC_IMX51 || COMPILE_TEST 416 select GPIO_GENERIC 417 help 418 This driver support TS-4800 FPGA GPIO controllers. 419 420config GPIO_TZ1090 421 bool "Toumaz Xenif TZ1090 GPIO support" 422 depends on SOC_TZ1090 423 select GENERIC_IRQ_CHIP 424 default y 425 help 426 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 427 428config GPIO_TZ1090_PDC 429 bool "Toumaz Xenif TZ1090 PDC GPIO support" 430 depends on SOC_TZ1090 431 default y 432 help 433 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 434 435config GPIO_VF610 436 def_bool y 437 depends on ARCH_MXC && SOC_VF610 438 select GPIOLIB_IRQCHIP 439 help 440 Say yes here to support Vybrid vf610 GPIOs. 441 442config GPIO_VR41XX 443 tristate "NEC VR4100 series General-purpose I/O Uint support" 444 depends on CPU_VR41XX 445 help 446 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 447 448config GPIO_VX855 449 tristate "VIA VX855/VX875 GPIO" 450 depends on PCI 451 select MFD_CORE 452 select MFD_VX855 453 help 454 Support access to the VX855/VX875 GPIO lines through the gpio library. 455 456 This driver provides common support for accessing the device, 457 additional drivers must be enabled in order to use the 458 functionality of the device. 459 460config GPIO_XGENE 461 bool "APM X-Gene GPIO controller support" 462 depends on ARM64 && OF_GPIO 463 help 464 This driver is to support the GPIO block within the APM X-Gene SoC 465 platform's generic flash controller. The GPIO pins are muxed with 466 the generic flash controller's address and data pins. Say yes 467 here to enable the GFC GPIO functionality. 468 469config GPIO_XGENE_SB 470 tristate "APM X-Gene GPIO standby controller support" 471 depends on ARCH_XGENE && OF_GPIO 472 select GPIO_GENERIC 473 select GPIOLIB_IRQCHIP 474 help 475 This driver supports the GPIO block within the APM X-Gene 476 Standby Domain. Say yes here to enable the GPIO functionality. 477 478config GPIO_XILINX 479 tristate "Xilinx GPIO support" 480 depends on OF_GPIO 481 help 482 Say yes here to support the Xilinx FPGA GPIO device 483 484config GPIO_XLP 485 tristate "Netlogic XLP GPIO support" 486 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST) 487 select GPIOLIB_IRQCHIP 488 help 489 This driver provides support for GPIO interface on Netlogic XLP MIPS64 490 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 491 XLP9XX and XLP5XX. 492 493 If unsure, say N. 494 495config GPIO_XTENSA 496 bool "Xtensa GPIO32 support" 497 depends on XTENSA 498 depends on HAVE_XTENSA_GPIO32 499 depends on !SMP 500 help 501 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 502 and EXPSTATE (output) ports 503 504config GPIO_ZEVIO 505 bool "LSI ZEVIO SoC memory mapped GPIOs" 506 depends on ARM && OF_GPIO 507 help 508 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 509 510config GPIO_ZYNQ 511 tristate "Xilinx Zynq GPIO support" 512 depends on ARCH_ZYNQ || ARCH_ZYNQMP 513 select GPIOLIB_IRQCHIP 514 help 515 Say yes here to support Xilinx Zynq GPIO controller. 516 517config GPIO_ZX 518 bool "ZTE ZX GPIO support" 519 select GPIOLIB_IRQCHIP 520 help 521 Say yes here to support the GPIO device on ZTE ZX SoCs. 522 523config GPIO_LOONGSON1 524 tristate "Loongson1 GPIO support" 525 depends on MACH_LOONGSON32 526 select GPIO_GENERIC 527 help 528 Say Y or M here to support GPIO on Loongson1 SoCs. 529 530endmenu 531 532menu "Port-mapped I/O GPIO drivers" 533 depends on X86 # Unconditional I/O space access 534 535config GPIO_104_DIO_48E 536 tristate "ACCES 104-DIO-48E GPIO support" 537 depends on ISA_BUS_API 538 select GPIOLIB_IRQCHIP 539 help 540 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 541 104-DIO-24E). The base port addresses for the devices may be 542 configured via the base module parameter. The interrupt line numbers 543 for the devices may be configured via the irq module parameter. 544 545config GPIO_104_IDIO_16 546 tristate "ACCES 104-IDIO-16 GPIO support" 547 depends on ISA_BUS_API 548 select GPIOLIB_IRQCHIP 549 help 550 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 551 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 552 base port addresses for the devices may be configured via the base 553 module parameter. The interrupt line numbers for the devices may be 554 configured via the irq module parameter. 555 556config GPIO_104_IDI_48 557 tristate "ACCES 104-IDI-48 GPIO support" 558 depends on ISA_BUS_API 559 select GPIOLIB_IRQCHIP 560 help 561 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 562 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 563 the devices may be configured via the base module parameter. The 564 interrupt line numbers for the devices may be configured via the irq 565 module parameter. 566 567config GPIO_F7188X 568 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 569 help 570 This option enables support for GPIOs found on Fintek Super-I/O 571 chips F71869, F71869A, F71882FG, F71889F and F81866. 572 573 To compile this driver as a module, choose M here: the module will 574 be called f7188x-gpio. 575 576config GPIO_IT87 577 tristate "IT87xx GPIO support" 578 help 579 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 580 581 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 582 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well. 583 584 To compile this driver as a module, choose M here: the module will 585 be called gpio_it87 586 587config GPIO_SCH 588 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 589 depends on PCI 590 select MFD_CORE 591 select LPC_SCH 592 help 593 Say yes here to support GPIO interface on Intel Poulsbo SCH, 594 Intel Tunnel Creek processor, Intel Centerton processor or 595 Intel Quark X1000 SoC. 596 597 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 598 powered by the core power rail and are turned off during sleep 599 modes (S3 and higher). The remaining four GPIOs are powered by 600 the Intel SCH suspend power supply. These GPIOs remain 601 active during S3. The suspend powered GPIOs can be used to wake the 602 system from the Suspend-to-RAM state. 603 604 The Intel Tunnel Creek processor has 5 GPIOs powered by the 605 core power rail and 9 from suspend power supply. 606 607 The Intel Centerton processor has a total of 30 GPIO pins. 608 Twenty-one are powered by the core power rail and 9 from the 609 suspend power supply. 610 611 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 612 power well and 6 from the suspend power well. 613 614config GPIO_SCH311X 615 tristate "SMSC SCH311x SuperI/O GPIO" 616 help 617 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 618 SCH3116 "Super I/O" chipsets. 619 620 To compile this driver as a module, choose M here: the module will 621 be called gpio-sch311x. 622 623config GPIO_TS5500 624 tristate "TS-5500 DIO blocks and compatibles" 625 depends on TS5500 || COMPILE_TEST 626 help 627 This driver supports Digital I/O exposed by pin blocks found on some 628 Technologic Systems platforms. It includes, but is not limited to, 3 629 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 630 LCD port. 631 632config GPIO_WS16C48 633 tristate "WinSystems WS16C48 GPIO support" 634 depends on ISA_BUS_API 635 select GPIOLIB_IRQCHIP 636 help 637 Enables GPIO support for the WinSystems WS16C48. The base port 638 addresses for the devices may be configured via the base module 639 parameter. The interrupt line numbers for the devices may be 640 configured via the irq module parameter. 641 642endmenu 643 644menu "I2C GPIO expanders" 645 depends on I2C 646 647config GPIO_ADP5588 648 tristate "ADP5588 I2C GPIO expander" 649 help 650 This option enables support for 18 GPIOs found 651 on Analog Devices ADP5588 GPIO Expanders. 652 653config GPIO_ADP5588_IRQ 654 bool "Interrupt controller support for ADP5588" 655 depends on GPIO_ADP5588=y 656 help 657 Say yes here to enable the adp5588 to be used as an interrupt 658 controller. It requires the driver to be built in the kernel. 659 660config GPIO_ADNP 661 tristate "Avionic Design N-bit GPIO expander" 662 depends on OF_GPIO 663 select GPIOLIB_IRQCHIP 664 help 665 This option enables support for N GPIOs found on Avionic Design 666 I2C GPIO expanders. The register space will be extended by powers 667 of two, so the controller will need to accommodate for that. For 668 example: if a controller provides 48 pins, 6 registers will be 669 enough to represent all pins, but the driver will assume a 670 register layout for 64 pins (8 registers). 671 672config GPIO_MAX7300 673 tristate "Maxim MAX7300 GPIO expander" 674 select GPIO_MAX730X 675 help 676 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 677 678config GPIO_MAX732X 679 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 680 help 681 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 682 Port Expanders. Each IO port on these chips has a fixed role of 683 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 684 Input and Output (designed by 'P'). The combinations are listed 685 below: 686 687 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 688 max7322 (4I4O), max7323 (4P4O) 689 690 16 bits: max7324 (8I8O), max7325 (8P8O), 691 max7326 (4I12O), max7327 (4P12O) 692 693 Board setup code must specify the model to use, and the start 694 number for these GPIOs. 695 696config GPIO_MAX732X_IRQ 697 bool "Interrupt controller support for MAX732x" 698 depends on GPIO_MAX732X=y 699 select GPIOLIB_IRQCHIP 700 help 701 Say yes here to enable the max732x to be used as an interrupt 702 controller. It requires the driver to be built in the kernel. 703 704config GPIO_MC9S08DZ60 705 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 706 depends on I2C=y && MACH_MX35_3DS 707 help 708 Select this to enable the MC9S08DZ60 GPIO driver 709 710config GPIO_PCA953X 711 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 712 help 713 Say yes here to provide access to several register-oriented 714 SMBus I/O expanders, made mostly by NXP or TI. Compatible 715 models include: 716 717 4 bits: pca9536, pca9537 718 719 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 720 pca9556, pca9557, pca9574, tca6408, xra1202 721 722 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 723 tca6416 724 725 24 bits: tca6424 726 727 40 bits: pca9505, pca9698 728 729config GPIO_PCA953X_IRQ 730 bool "Interrupt controller support for PCA953x" 731 depends on GPIO_PCA953X=y 732 select GPIOLIB_IRQCHIP 733 help 734 Say yes here to enable the pca953x to be used as an interrupt 735 controller. It requires the driver to be built in the kernel. 736 737config GPIO_PCF857X 738 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 739 select GPIOLIB_IRQCHIP 740 select IRQ_DOMAIN 741 help 742 Say yes here to provide access to most "quasi-bidirectional" I2C 743 GPIO expanders used for additional digital outputs or inputs. 744 Most of these parts are from NXP, though TI is a second source for 745 some of them. Compatible models include: 746 747 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 748 pca9670, pca9672, pca9674, pca9674a, 749 max7328, max7329 750 751 16 bits: pcf8575, pcf8575c, pca8575, 752 pca9671, pca9673, pca9675 753 754 Your board setup code will need to declare the expanders in 755 use, and assign numbers to the GPIOs they expose. Those GPIOs 756 can then be used from drivers and other kernel code, just like 757 other GPIOs, but only accessible from task contexts. 758 759 This driver provides an in-kernel interface to those GPIOs using 760 platform-neutral GPIO calls. 761 762config GPIO_SX150X 763 bool "Semtech SX150x I2C GPIO expander" 764 depends on I2C=y 765 select GPIOLIB_IRQCHIP 766 default n 767 help 768 Say yes here to provide support for Semtech SX150-series I2C 769 GPIO expanders. Compatible models include: 770 771 8 bits: sx1508q 772 16 bits: sx1509q 773 774config GPIO_TPIC2810 775 tristate "TPIC2810 8-Bit I2C GPO expander" 776 help 777 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 778 779 To compile this driver as a module, choose M here: the module will 780 be called gpio-tpic2810. 781 782endmenu 783 784menu "MFD GPIO expanders" 785 786config GPIO_ADP5520 787 tristate "GPIO Support for ADP5520 PMIC" 788 depends on PMIC_ADP5520 789 help 790 This option enables support for on-chip GPIO found 791 on Analog Devices ADP5520 PMICs. 792 793config GPIO_ARIZONA 794 tristate "Wolfson Microelectronics Arizona class devices" 795 depends on MFD_ARIZONA 796 help 797 Support for GPIOs on Wolfson Arizona class devices. 798 799config GPIO_CRYSTAL_COVE 800 tristate "GPIO support for Crystal Cove PMIC" 801 depends on INTEL_SOC_PMIC 802 select GPIOLIB_IRQCHIP 803 help 804 Support for GPIO pins on Crystal Cove PMIC. 805 806 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 807 inside. 808 809 This driver can also be built as a module. If so, the module will be 810 called gpio-crystalcove. 811 812config GPIO_CS5535 813 tristate "AMD CS5535/CS5536 GPIO support" 814 depends on MFD_CS5535 815 help 816 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 817 can be used for quite a number of things. The CS5535/6 is found on 818 AMD Geode and Lemote Yeeloong devices. 819 820 If unsure, say N. 821 822config GPIO_DA9052 823 tristate "Dialog DA9052 GPIO" 824 depends on PMIC_DA9052 825 help 826 Say yes here to enable the GPIO driver for the DA9052 chip. 827 828config GPIO_DA9055 829 tristate "Dialog Semiconductor DA9055 GPIO" 830 depends on MFD_DA9055 831 help 832 Say yes here to enable the GPIO driver for the DA9055 chip. 833 834 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 835 be controller by this driver. 836 837 If driver is built as a module it will be called gpio-da9055. 838 839config GPIO_DLN2 840 tristate "Diolan DLN2 GPIO support" 841 depends on MFD_DLN2 842 select GPIOLIB_IRQCHIP 843 844 help 845 Select this option to enable GPIO driver for the Diolan DLN2 846 board. 847 848 This driver can also be built as a module. If so, the module 849 will be called gpio-dln2. 850 851config GPIO_JANZ_TTL 852 tristate "Janz VMOD-TTL Digital IO Module" 853 depends on MFD_JANZ_CMODIO 854 help 855 This enables support for the Janz VMOD-TTL Digital IO module. 856 This driver provides support for driving the pins in output 857 mode only. Input mode is not supported. 858 859config GPIO_KEMPLD 860 tristate "Kontron ETX / COMexpress GPIO" 861 depends on MFD_KEMPLD 862 help 863 This enables support for the PLD GPIO interface on some Kontron ETX 864 and COMexpress (ETXexpress) modules. 865 866 This driver can also be built as a module. If so, the module will be 867 called gpio-kempld. 868 869config GPIO_LP3943 870 tristate "TI/National Semiconductor LP3943 GPIO expander" 871 depends on MFD_LP3943 872 help 873 GPIO driver for LP3943 MFD. 874 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 875 Open drain outputs are required for this usage. 876 877config GPIO_MSIC 878 bool "Intel MSIC mixed signal gpio support" 879 depends on MFD_INTEL_MSIC 880 help 881 Enable support for GPIO on intel MSIC controllers found in 882 intel MID devices 883 884config GPIO_PALMAS 885 bool "TI PALMAS series PMICs GPIO" 886 depends on MFD_PALMAS 887 help 888 Select this option to enable GPIO driver for the TI PALMAS 889 series chip family. 890 891config GPIO_RC5T583 892 bool "RICOH RC5T583 GPIO" 893 depends on MFD_RC5T583 894 help 895 Select this option to enable GPIO driver for the Ricoh RC5T583 896 chip family. 897 This driver provides the support for driving/reading the gpio pins 898 of RC5T583 device through standard gpio library. 899 900config GPIO_STMPE 901 bool "STMPE GPIOs" 902 depends on MFD_STMPE 903 depends on OF_GPIO 904 select GPIOLIB_IRQCHIP 905 help 906 This enables support for the GPIOs found on the STMPE I/O 907 Expanders. 908 909config GPIO_TC3589X 910 bool "TC3589X GPIOs" 911 depends on MFD_TC3589X 912 depends on OF_GPIO 913 select GPIOLIB_IRQCHIP 914 help 915 This enables support for the GPIOs found on the TC3589X 916 I/O Expander. 917 918config GPIO_TIMBERDALE 919 bool "Support for timberdale GPIO IP" 920 depends on MFD_TIMBERDALE 921 ---help--- 922 Add support for the GPIO IP in the timberdale FPGA. 923 924config GPIO_TPS65086 925 tristate "TI TPS65086 GPO" 926 depends on MFD_TPS65086 927 help 928 This driver supports the GPO on TI TPS65086x PMICs. 929 930config GPIO_TPS65218 931 tristate "TPS65218 GPIO" 932 depends on MFD_TPS65218 933 help 934 Select this option to enable GPIO driver for the TPS65218 935 chip family. 936 937config GPIO_TPS6586X 938 bool "TPS6586X GPIO" 939 depends on MFD_TPS6586X 940 help 941 Select this option to enable GPIO driver for the TPS6586X 942 chip family. 943 944config GPIO_TPS65910 945 bool "TPS65910 GPIO" 946 depends on MFD_TPS65910 947 help 948 Select this option to enable GPIO driver for the TPS65910 949 chip family. 950 951config GPIO_TPS65912 952 tristate "TI TPS65912 GPIO" 953 depends on MFD_TPS65912 954 help 955 This driver supports TPS65912 gpio chip 956 957config GPIO_TWL4030 958 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 959 depends on TWL4030_CORE 960 help 961 Say yes here to access the GPIO signals of various multi-function 962 power management chips from Texas Instruments. 963 964config GPIO_TWL6040 965 tristate "TWL6040 GPO" 966 depends on TWL6040_CORE 967 help 968 Say yes here to access the GPO signals of twl6040 969 audio chip from Texas Instruments. 970 971config GPIO_UCB1400 972 tristate "Philips UCB1400 GPIO" 973 depends on UCB1400_CORE 974 help 975 This enables support for the Philips UCB1400 GPIO pins. 976 The UCB1400 is an AC97 audio codec. 977 978config GPIO_WM831X 979 tristate "WM831x GPIOs" 980 depends on MFD_WM831X 981 help 982 Say yes here to access the GPIO signals of WM831x power management 983 chips from Wolfson Microelectronics. 984 985config GPIO_WM8350 986 tristate "WM8350 GPIOs" 987 depends on MFD_WM8350 988 help 989 Say yes here to access the GPIO signals of WM8350 power management 990 chips from Wolfson Microelectronics. 991 992config GPIO_WM8994 993 tristate "WM8994 GPIOs" 994 depends on MFD_WM8994 995 help 996 Say yes here to access the GPIO signals of WM8994 audio hub 997 CODECs from Wolfson Microelectronics. 998 999endmenu 1000 1001menu "PCI GPIO expanders" 1002 depends on PCI 1003 1004config GPIO_AMD8111 1005 tristate "AMD 8111 GPIO driver" 1006 help 1007 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1008 1009 Note, that usually system firmware/ACPI handles GPIO pins on their 1010 own and users might easily break their systems with uncarefull usage 1011 of this driver! 1012 1013 If unsure, say N 1014 1015config GPIO_BT8XX 1016 tristate "BT8XX GPIO abuser" 1017 depends on VIDEO_BT848=n 1018 help 1019 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1020 as a cheap PCI GPIO card. 1021 1022 This chip can be found on Miro, Hauppauge and STB TV-cards. 1023 1024 The card needs to be physically altered for using it as a 1025 GPIO card. For more information on how to build a GPIO card 1026 from a BT8xx TV card, see the documentation file at 1027 Documentation/bt8xxgpio.txt 1028 1029 If unsure, say N. 1030 1031config GPIO_INTEL_MID 1032 bool "Intel Mid GPIO support" 1033 depends on X86 1034 select GPIOLIB_IRQCHIP 1035 help 1036 Say Y here to support Intel Mid GPIO. 1037 1038config GPIO_ML_IOH 1039 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1040 select GENERIC_IRQ_CHIP 1041 help 1042 ML7213 is companion chip for Intel Atom E6xx series. 1043 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1044 Hub) which is for IVI(In-Vehicle Infotainment) use. 1045 This driver can access the IOH's GPIO device. 1046 1047config GPIO_PCH 1048 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1049 depends on X86_32 || MIPS || COMPILE_TEST 1050 select GENERIC_IRQ_CHIP 1051 help 1052 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1053 which is an IOH(Input/Output Hub) for x86 embedded processor. 1054 This driver can access PCH GPIO device. 1055 1056 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1057 Output Hub), ML7223 and ML7831. 1058 ML7223 IOH is for MP(Media Phone) use. 1059 ML7831 IOH is for general purpose use. 1060 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1061 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1062 1063config GPIO_RDC321X 1064 tristate "RDC R-321x GPIO support" 1065 select MFD_CORE 1066 select MFD_RDC321X 1067 help 1068 Support for the RDC R321x SoC GPIOs over southbridge 1069 PCI configuration space. 1070 1071config GPIO_SODAVILLE 1072 bool "Intel Sodaville GPIO support" 1073 depends on X86 && OF 1074 select GPIO_GENERIC 1075 select GENERIC_IRQ_CHIP 1076 help 1077 Say Y here to support Intel Sodaville GPIO. 1078 1079endmenu 1080 1081menu "SPI GPIO expanders" 1082 depends on SPI_MASTER 1083 1084config GPIO_74X164 1085 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1086 depends on OF 1087 help 1088 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1089 shift registers. This driver can be used to provide access 1090 to more gpio outputs. 1091 1092config GPIO_MAX7301 1093 tristate "Maxim MAX7301 GPIO expander" 1094 select GPIO_MAX730X 1095 help 1096 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1097 1098config GPIO_MC33880 1099 tristate "Freescale MC33880 high-side/low-side switch" 1100 help 1101 SPI driver for Freescale MC33880 high-side/low-side switch. 1102 This provides GPIO interface supporting inputs and outputs. 1103 1104config GPIO_PISOSR 1105 tristate "Generic parallel-in/serial-out shift register" 1106 help 1107 GPIO driver for SPI compatible parallel-in/serial-out shift 1108 registers. These are input only devices. 1109 1110endmenu 1111 1112menu "SPI or I2C GPIO expanders" 1113 depends on (SPI_MASTER && !I2C) || I2C 1114 1115config GPIO_MCP23S08 1116 tristate "Microchip MCP23xxx I/O expander" 1117 select GPIOLIB_IRQCHIP 1118 help 1119 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1120 I/O expanders. 1121 This provides a GPIO interface supporting inputs and outputs. 1122 The I2C versions of the chips can be used as interrupt-controller. 1123 1124endmenu 1125 1126menu "USB GPIO expanders" 1127 depends on USB 1128 1129config GPIO_VIPERBOARD 1130 tristate "Viperboard GPIO a & b support" 1131 depends on MFD_VIPERBOARD 1132 help 1133 Say yes here to access the GPIO signals of Nano River 1134 Technologies Viperboard. There are two GPIO chips on the 1135 board: gpioa and gpiob. 1136 See viperboard API specification and Nano 1137 River Tech's viperboard.h for detailed meaning 1138 of the module parameters. 1139 1140endmenu 1141 1142endif 1143