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 depends on HAS_IOMEM 54 55config GPIO_ACPI 56 def_bool y 57 depends on ACPI 58 59config GPIOLIB_IRQCHIP 60 select IRQ_DOMAIN 61 bool 62 63config DEBUG_GPIO 64 bool "Debug GPIO calls" 65 depends on DEBUG_KERNEL 66 help 67 Say Y here to add some extra checks and diagnostics to GPIO calls. 68 These checks help ensure that GPIOs have been properly initialized 69 before they are used, and that sleeping calls are not made from 70 non-sleeping contexts. They can make bitbanged serial protocols 71 slower. The diagnostics help catch the type of setup errors 72 that are most common when setting up new platforms or boards. 73 74config GPIO_SYSFS 75 bool "/sys/class/gpio/... (sysfs interface)" 76 depends on SYSFS 77 help 78 Say Y here to add a sysfs interface for GPIOs. 79 80 This is mostly useful to work around omissions in a system's 81 kernel support. Those are common in custom and semicustom 82 hardware assembled using standard kernels with a minimum of 83 custom patches. In those cases, userspace code may import 84 a given GPIO from the kernel, if no kernel driver requested it. 85 86 Kernel drivers may also request that a particular GPIO be 87 exported to userspace; this can be useful when debugging. 88 89config GPIO_GENERIC 90 tristate 91 92# put drivers in the right section, in alphabetical order 93 94# This symbol is selected by both I2C and SPI expanders 95config GPIO_MAX730X 96 tristate 97 98menu "Memory mapped GPIO drivers" 99 100config GPIO_74XX_MMIO 101 tristate "GPIO driver for 74xx-ICs with MMIO access" 102 depends on OF_GPIO 103 select GPIO_GENERIC 104 help 105 Say yes here to support GPIO functionality for 74xx-compatible ICs 106 with MMIO access. Compatible models include: 107 1 bit: 741G125 (Input), 741G74 (Output) 108 2 bits: 742G125 (Input), 7474 (Output) 109 4 bits: 74125 (Input), 74175 (Output) 110 6 bits: 74365 (Input), 74174 (Output) 111 8 bits: 74244 (Input), 74273 (Output) 112 16 bits: 741624 (Input), 7416374 (Output) 113 114config GPIO_ALTERA 115 tristate "Altera GPIO" 116 depends on OF_GPIO 117 select GPIOLIB_IRQCHIP 118 help 119 Say Y or M here to build support for the Altera PIO device. 120 121 If driver is built as a module it will be called gpio-altera. 122 123config GPIO_AMDPT 124 tristate "AMD Promontory GPIO support" 125 depends on ACPI 126 select GPIO_GENERIC 127 help 128 driver for GPIO functionality on Promontory IOHub 129 Require ACPI ASL code to enumerate as a platform device. 130 131config GPIO_ATH79 132 tristate "Atheros AR71XX/AR724X/AR913X GPIO support" 133 default y if ATH79 134 depends on ATH79 || COMPILE_TEST 135 select GPIO_GENERIC 136 select GPIOLIB_IRQCHIP 137 help 138 Select this option to enable GPIO driver for 139 Atheros AR71XX/AR724X/AR913X SoC devices. 140 141config GPIO_BCM_KONA 142 bool "Broadcom Kona GPIO" 143 depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST) 144 help 145 Turn on GPIO support for Broadcom "Kona" chips. 146 147config GPIO_BRCMSTB 148 tristate "BRCMSTB GPIO support" 149 default y if (ARCH_BRCMSTB || BMIPS_GENERIC) 150 depends on OF_GPIO && (ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST) 151 select GPIO_GENERIC 152 select GPIOLIB_IRQCHIP 153 help 154 Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. 155 156config GPIO_CLPS711X 157 tristate "CLPS711X GPIO support" 158 depends on ARCH_CLPS711X || COMPILE_TEST 159 select GPIO_GENERIC 160 help 161 Say yes here to support GPIO on CLPS711X SoCs. 162 163config GPIO_DAVINCI 164 bool "TI Davinci/Keystone GPIO support" 165 default y if ARCH_DAVINCI 166 depends on ARM && (ARCH_DAVINCI || ARCH_KEYSTONE) 167 help 168 Say yes here to enable GPIO support for TI Davinci/Keystone SoCs. 169 170config GPIO_DWAPB 171 tristate "Synopsys DesignWare APB GPIO driver" 172 select GPIO_GENERIC 173 select GENERIC_IRQ_CHIP 174 help 175 Say Y or M here to build support for the Synopsys DesignWare APB 176 GPIO block. 177 178config GPIO_EM 179 tristate "Emma Mobile GPIO" 180 depends on ARM && OF_GPIO 181 help 182 Say yes here to support GPIO on Renesas Emma Mobile SoCs. 183 184config GPIO_EP93XX 185 def_bool y 186 depends on ARCH_EP93XX 187 select GPIO_GENERIC 188 189config GPIO_ETRAXFS 190 bool "Axis ETRAX FS General I/O" 191 depends on CRIS || COMPILE_TEST 192 depends on OF_GPIO 193 select GPIO_GENERIC 194 select GPIOLIB_IRQCHIP 195 help 196 Say yes here to support the GPIO controller on Axis ETRAX FS SoCs. 197 198config GPIO_GE_FPGA 199 bool "GE FPGA based GPIO" 200 depends on GE_FPGA 201 select GPIO_GENERIC 202 help 203 Support for common GPIO functionality provided on some GE Single Board 204 Computers. 205 206 This driver provides basic support (configure as input or output, read 207 and write pin state) for GPIO implemented in a number of GE single 208 board computers. 209 210config GPIO_GENERIC_PLATFORM 211 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" 212 select GPIO_GENERIC 213 help 214 Say yes here to support basic platform_device memory-mapped GPIO controllers. 215 216config GPIO_GRGPIO 217 tristate "Aeroflex Gaisler GRGPIO support" 218 depends on OF_GPIO 219 select GPIO_GENERIC 220 select IRQ_DOMAIN 221 help 222 Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB 223 VHDL IP core library. 224 225config GPIO_ICH 226 tristate "Intel ICH GPIO" 227 depends on PCI && X86 228 select MFD_CORE 229 select LPC_ICH 230 help 231 Say yes here to support the GPIO functionality of a number of Intel 232 ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 233 ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg 234 Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). 235 236 If unsure, say N. 237 238config GPIO_IOP 239 tristate "Intel IOP GPIO" 240 depends on ARM && (ARCH_IOP32X || ARCH_IOP33X) 241 help 242 Say yes here to support the GPIO functionality of a number of Intel 243 IOP32X or IOP33X. 244 245 If unsure, say N. 246 247config GPIO_LOONGSON 248 bool "Loongson-2/3 GPIO support" 249 depends on CPU_LOONGSON2 || CPU_LOONGSON3 250 help 251 driver for GPIO functionality on Loongson-2F/3A/3B processors. 252 253config GPIO_LPC18XX 254 tristate "NXP LPC18XX/43XX GPIO support" 255 default y if ARCH_LPC18XX 256 depends on OF_GPIO && (ARCH_LPC18XX || COMPILE_TEST) 257 help 258 Select this option to enable GPIO driver for 259 NXP LPC18XX/43XX devices. 260 261config GPIO_LYNXPOINT 262 tristate "Intel Lynxpoint GPIO support" 263 depends on ACPI && X86 264 select GPIOLIB_IRQCHIP 265 help 266 driver for GPIO functionality on Intel Lynxpoint PCH chipset 267 Requires ACPI device enumeration code to set up a platform device. 268 269config GPIO_MB86S7X 270 bool "GPIO support for Fujitsu MB86S7x Platforms" 271 depends on ARCH_MB86S7X || COMPILE_TEST 272 help 273 Say yes here to support the GPIO controller in Fujitsu MB86S70 SoCs. 274 275config GPIO_MENZ127 276 tristate "MEN 16Z127 GPIO support" 277 depends on MCB 278 select GPIO_GENERIC 279 help 280 Say yes here to support the MEN 16Z127 GPIO Controller 281 282config GPIO_MM_LANTIQ 283 bool "Lantiq Memory mapped GPIOs" 284 depends on LANTIQ && SOC_XWAY 285 help 286 This enables support for memory mapped GPIOs on the External Bus Unit 287 (EBU) found on Lantiq SoCs. The gpios are output only as they are 288 created by attaching a 16bit latch to the bus. 289 290config GPIO_MOXART 291 bool "MOXART GPIO support" 292 depends on ARCH_MOXART || COMPILE_TEST 293 select GPIO_GENERIC 294 help 295 Select this option to enable GPIO driver for 296 MOXA ART SoC devices. 297 298config GPIO_MPC5200 299 def_bool y 300 depends on PPC_MPC52xx 301 302config GPIO_MPC8XXX 303 bool "MPC512x/MPC8xxx/QorIQ GPIO support" 304 depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ 305 FSL_SOC_BOOKE || PPC_86xx || ARCH_LAYERSCAPE || ARM || \ 306 COMPILE_TEST 307 select GPIO_GENERIC 308 select IRQ_DOMAIN 309 help 310 Say Y here if you're going to use hardware that connects to the 311 MPC512x/831x/834x/837x/8572/8610/QorIQ GPIOs. 312 313config GPIO_MVEBU 314 def_bool y 315 depends on PLAT_ORION 316 depends on OF_GPIO 317 select GENERIC_IRQ_CHIP 318 319config GPIO_MXC 320 def_bool y 321 depends on ARCH_MXC 322 select GPIO_GENERIC 323 select GENERIC_IRQ_CHIP 324 325config GPIO_MXS 326 def_bool y 327 depends on ARCH_MXS 328 select GPIO_GENERIC 329 select GENERIC_IRQ_CHIP 330 331config GPIO_OCTEON 332 tristate "Cavium OCTEON GPIO" 333 depends on GPIOLIB && CAVIUM_OCTEON_SOC 334 default y 335 help 336 Say yes here to support the on-chip GPIO lines on the OCTEON 337 family of SOCs. 338 339config GPIO_OMAP 340 tristate "TI OMAP GPIO support" if ARCH_OMAP2PLUS || COMPILE_TEST 341 default y if ARCH_OMAP 342 depends on ARM 343 select GENERIC_IRQ_CHIP 344 select GPIOLIB_IRQCHIP 345 help 346 Say yes here to enable GPIO support for TI OMAP SoCs. 347 348config GPIO_PL061 349 bool "PrimeCell PL061 GPIO support" 350 depends on ARM_AMBA 351 select IRQ_DOMAIN 352 select GPIOLIB_IRQCHIP 353 help 354 Say yes here to support the PrimeCell PL061 GPIO device 355 356config GPIO_PXA 357 bool "PXA GPIO support" 358 depends on ARCH_PXA || ARCH_MMP 359 help 360 Say yes here to support the PXA GPIO device 361 362config GPIO_RCAR 363 tristate "Renesas R-Car GPIO" 364 depends on ARCH_RENESAS || COMPILE_TEST 365 select GPIOLIB_IRQCHIP 366 help 367 Say yes here to support GPIO on Renesas R-Car SoCs. 368 369config GPIO_SPEAR_SPICS 370 bool "ST SPEAr13xx SPI Chip Select as GPIO support" 371 depends on PLAT_SPEAR 372 select GENERIC_IRQ_CHIP 373 help 374 Say yes here to support ST SPEAr SPI Chip Select as GPIO device 375 376config GPIO_STA2X11 377 bool "STA2x11/ConneXt GPIO support" 378 depends on MFD_STA2X11 379 select GENERIC_IRQ_CHIP 380 help 381 Say yes here to support the STA2x11/ConneXt GPIO device. 382 The GPIO module has 128 GPIO pins with alternate functions. 383 384config GPIO_STP_XWAY 385 bool "XWAY STP GPIOs" 386 depends on SOC_XWAY 387 help 388 This enables support for the Serial To Parallel (STP) unit found on 389 XWAY SoC. The STP allows the SoC to drive a shift registers cascade, 390 that can be up to 24 bit. This peripheral is aimed at driving leds. 391 Some of the gpios/leds can be auto updated by the soc with dsl and 392 phy status. 393 394config GPIO_SYSCON 395 tristate "GPIO based on SYSCON" 396 depends on MFD_SYSCON && OF 397 help 398 Say yes here to support GPIO functionality though SYSCON driver. 399 400config GPIO_TB10X 401 bool 402 select GENERIC_IRQ_CHIP 403 select OF_GPIO 404 405config GPIO_TEGRA 406 bool "NVIDIA Tegra GPIO support" 407 default ARCH_TEGRA 408 depends on ARCH_TEGRA || COMPILE_TEST 409 depends on OF_GPIO 410 help 411 Say yes here to support GPIO pins on NVIDIA Tegra SoCs. 412 413config GPIO_TS4800 414 tristate "TS-4800 DIO blocks and compatibles" 415 depends on OF_GPIO 416 depends on SOC_IMX51 || COMPILE_TEST 417 select GPIO_GENERIC 418 help 419 This driver support TS-4800 FPGA GPIO controllers. 420 421config GPIO_TZ1090 422 bool "Toumaz Xenif TZ1090 GPIO support" 423 depends on SOC_TZ1090 424 select GENERIC_IRQ_CHIP 425 default y 426 help 427 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 428 429config GPIO_TZ1090_PDC 430 bool "Toumaz Xenif TZ1090 PDC GPIO support" 431 depends on SOC_TZ1090 432 default y 433 help 434 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 435 436config GPIO_VF610 437 def_bool y 438 depends on ARCH_MXC && SOC_VF610 439 select GPIOLIB_IRQCHIP 440 help 441 Say yes here to support Vybrid vf610 GPIOs. 442 443config GPIO_VR41XX 444 tristate "NEC VR4100 series General-purpose I/O Uint support" 445 depends on CPU_VR41XX 446 help 447 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 448 449config GPIO_VX855 450 tristate "VIA VX855/VX875 GPIO" 451 depends on PCI 452 select MFD_CORE 453 select MFD_VX855 454 help 455 Support access to the VX855/VX875 GPIO lines through the gpio library. 456 457 This driver provides common support for accessing the device, 458 additional drivers must be enabled in order to use the 459 functionality of the device. 460 461config GPIO_XGENE 462 bool "APM X-Gene GPIO controller support" 463 depends on ARM64 && OF_GPIO 464 help 465 This driver is to support the GPIO block within the APM X-Gene SoC 466 platform's generic flash controller. The GPIO pins are muxed with 467 the generic flash controller's address and data pins. Say yes 468 here to enable the GFC GPIO functionality. 469 470config GPIO_XGENE_SB 471 tristate "APM X-Gene GPIO standby controller support" 472 depends on ARCH_XGENE && OF_GPIO 473 select GPIO_GENERIC 474 select GPIOLIB_IRQCHIP 475 help 476 This driver supports the GPIO block within the APM X-Gene 477 Standby Domain. Say yes here to enable the GPIO functionality. 478 479config GPIO_XILINX 480 tristate "Xilinx GPIO support" 481 depends on OF_GPIO 482 help 483 Say yes here to support the Xilinx FPGA GPIO device 484 485config GPIO_XLP 486 tristate "Netlogic XLP GPIO support" 487 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST) 488 select GPIOLIB_IRQCHIP 489 help 490 This driver provides support for GPIO interface on Netlogic XLP MIPS64 491 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 492 XLP9XX and XLP5XX. 493 494 If unsure, say N. 495 496config GPIO_XTENSA 497 bool "Xtensa GPIO32 support" 498 depends on XTENSA 499 depends on HAVE_XTENSA_GPIO32 500 depends on !SMP 501 help 502 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 503 and EXPSTATE (output) ports 504 505config GPIO_ZEVIO 506 bool "LSI ZEVIO SoC memory mapped GPIOs" 507 depends on ARM && OF_GPIO 508 help 509 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 510 511config GPIO_ZYNQ 512 tristate "Xilinx Zynq GPIO support" 513 depends on ARCH_ZYNQ || ARCH_ZYNQMP 514 select GPIOLIB_IRQCHIP 515 help 516 Say yes here to support Xilinx Zynq GPIO controller. 517 518config GPIO_ZX 519 bool "ZTE ZX GPIO support" 520 select GPIOLIB_IRQCHIP 521 help 522 Say yes here to support the GPIO device on ZTE ZX SoCs. 523 524config GPIO_LOONGSON1 525 tristate "Loongson1 GPIO support" 526 depends on MACH_LOONGSON32 527 select GPIO_GENERIC 528 help 529 Say Y or M here to support GPIO on Loongson1 SoCs. 530 531endmenu 532 533menu "Port-mapped I/O GPIO drivers" 534 depends on X86 # Unconditional I/O space access 535 536config GPIO_104_DIO_48E 537 tristate "ACCES 104-DIO-48E GPIO support" 538 depends on ISA_BUS_API 539 select GPIOLIB_IRQCHIP 540 help 541 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 542 104-DIO-24E). The base port addresses for the devices may be 543 configured via the base module parameter. The interrupt line numbers 544 for the devices may be configured via the irq module parameter. 545 546config GPIO_104_IDIO_16 547 tristate "ACCES 104-IDIO-16 GPIO support" 548 depends on ISA_BUS_API 549 select GPIOLIB_IRQCHIP 550 help 551 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 552 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 553 base port addresses for the devices may be configured via the base 554 module parameter. The interrupt line numbers for the devices may be 555 configured via the irq module parameter. 556 557config GPIO_104_IDI_48 558 tristate "ACCES 104-IDI-48 GPIO support" 559 depends on ISA_BUS_API 560 select GPIOLIB_IRQCHIP 561 help 562 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 563 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 564 the devices may be configured via the base module parameter. The 565 interrupt line numbers for the devices may be configured via the irq 566 module parameter. 567 568config GPIO_F7188X 569 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 570 help 571 This option enables support for GPIOs found on Fintek Super-I/O 572 chips F71869, F71869A, F71882FG, F71889F and F81866. 573 574 To compile this driver as a module, choose M here: the module will 575 be called f7188x-gpio. 576 577config GPIO_IT87 578 tristate "IT87xx GPIO support" 579 help 580 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 581 582 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 583 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well. 584 585 To compile this driver as a module, choose M here: the module will 586 be called gpio_it87 587 588config GPIO_SCH 589 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 590 depends on PCI 591 select MFD_CORE 592 select LPC_SCH 593 help 594 Say yes here to support GPIO interface on Intel Poulsbo SCH, 595 Intel Tunnel Creek processor, Intel Centerton processor or 596 Intel Quark X1000 SoC. 597 598 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 599 powered by the core power rail and are turned off during sleep 600 modes (S3 and higher). The remaining four GPIOs are powered by 601 the Intel SCH suspend power supply. These GPIOs remain 602 active during S3. The suspend powered GPIOs can be used to wake the 603 system from the Suspend-to-RAM state. 604 605 The Intel Tunnel Creek processor has 5 GPIOs powered by the 606 core power rail and 9 from suspend power supply. 607 608 The Intel Centerton processor has a total of 30 GPIO pins. 609 Twenty-one are powered by the core power rail and 9 from the 610 suspend power supply. 611 612 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 613 power well and 6 from the suspend power well. 614 615config GPIO_SCH311X 616 tristate "SMSC SCH311x SuperI/O GPIO" 617 help 618 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 619 SCH3116 "Super I/O" chipsets. 620 621 To compile this driver as a module, choose M here: the module will 622 be called gpio-sch311x. 623 624config GPIO_TS5500 625 tristate "TS-5500 DIO blocks and compatibles" 626 depends on TS5500 || COMPILE_TEST 627 help 628 This driver supports Digital I/O exposed by pin blocks found on some 629 Technologic Systems platforms. It includes, but is not limited to, 3 630 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 631 LCD port. 632 633config GPIO_WS16C48 634 tristate "WinSystems WS16C48 GPIO support" 635 depends on ISA_BUS_API 636 select GPIOLIB_IRQCHIP 637 help 638 Enables GPIO support for the WinSystems WS16C48. The base port 639 addresses for the devices may be configured via the base module 640 parameter. The interrupt line numbers for the devices may be 641 configured via the irq module parameter. 642 643endmenu 644 645menu "I2C GPIO expanders" 646 depends on I2C 647 648config GPIO_ADP5588 649 tristate "ADP5588 I2C GPIO expander" 650 help 651 This option enables support for 18 GPIOs found 652 on Analog Devices ADP5588 GPIO Expanders. 653 654config GPIO_ADP5588_IRQ 655 bool "Interrupt controller support for ADP5588" 656 depends on GPIO_ADP5588=y 657 help 658 Say yes here to enable the adp5588 to be used as an interrupt 659 controller. It requires the driver to be built in the kernel. 660 661config GPIO_ADNP 662 tristate "Avionic Design N-bit GPIO expander" 663 depends on OF_GPIO 664 select GPIOLIB_IRQCHIP 665 help 666 This option enables support for N GPIOs found on Avionic Design 667 I2C GPIO expanders. The register space will be extended by powers 668 of two, so the controller will need to accommodate for that. For 669 example: if a controller provides 48 pins, 6 registers will be 670 enough to represent all pins, but the driver will assume a 671 register layout for 64 pins (8 registers). 672 673config GPIO_MAX7300 674 tristate "Maxim MAX7300 GPIO expander" 675 select GPIO_MAX730X 676 help 677 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 678 679config GPIO_MAX732X 680 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 681 help 682 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 683 Port Expanders. Each IO port on these chips has a fixed role of 684 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 685 Input and Output (designed by 'P'). The combinations are listed 686 below: 687 688 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 689 max7322 (4I4O), max7323 (4P4O) 690 691 16 bits: max7324 (8I8O), max7325 (8P8O), 692 max7326 (4I12O), max7327 (4P12O) 693 694 Board setup code must specify the model to use, and the start 695 number for these GPIOs. 696 697config GPIO_MAX732X_IRQ 698 bool "Interrupt controller support for MAX732x" 699 depends on GPIO_MAX732X=y 700 select GPIOLIB_IRQCHIP 701 help 702 Say yes here to enable the max732x to be used as an interrupt 703 controller. It requires the driver to be built in the kernel. 704 705config GPIO_MC9S08DZ60 706 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 707 depends on I2C=y && MACH_MX35_3DS 708 help 709 Select this to enable the MC9S08DZ60 GPIO driver 710 711config GPIO_PCA953X 712 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 713 help 714 Say yes here to provide access to several register-oriented 715 SMBus I/O expanders, made mostly by NXP or TI. Compatible 716 models include: 717 718 4 bits: pca9536, pca9537 719 720 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 721 pca9556, pca9557, pca9574, tca6408, xra1202 722 723 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 724 tca6416 725 726 24 bits: tca6424 727 728 40 bits: pca9505, pca9698 729 730config GPIO_PCA953X_IRQ 731 bool "Interrupt controller support for PCA953x" 732 depends on GPIO_PCA953X=y 733 select GPIOLIB_IRQCHIP 734 help 735 Say yes here to enable the pca953x to be used as an interrupt 736 controller. It requires the driver to be built in the kernel. 737 738config GPIO_PCF857X 739 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 740 select GPIOLIB_IRQCHIP 741 select IRQ_DOMAIN 742 help 743 Say yes here to provide access to most "quasi-bidirectional" I2C 744 GPIO expanders used for additional digital outputs or inputs. 745 Most of these parts are from NXP, though TI is a second source for 746 some of them. Compatible models include: 747 748 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 749 pca9670, pca9672, pca9674, pca9674a, 750 max7328, max7329 751 752 16 bits: pcf8575, pcf8575c, pca8575, 753 pca9671, pca9673, pca9675 754 755 Your board setup code will need to declare the expanders in 756 use, and assign numbers to the GPIOs they expose. Those GPIOs 757 can then be used from drivers and other kernel code, just like 758 other GPIOs, but only accessible from task contexts. 759 760 This driver provides an in-kernel interface to those GPIOs using 761 platform-neutral GPIO calls. 762 763config GPIO_SX150X 764 bool "Semtech SX150x I2C GPIO expander" 765 depends on I2C=y 766 select GPIOLIB_IRQCHIP 767 default n 768 help 769 Say yes here to provide support for Semtech SX150-series I2C 770 GPIO expanders. Compatible models include: 771 772 8 bits: sx1508q 773 16 bits: sx1509q 774 775config GPIO_TPIC2810 776 tristate "TPIC2810 8-Bit I2C GPO expander" 777 help 778 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 779 780 To compile this driver as a module, choose M here: the module will 781 be called gpio-tpic2810. 782 783endmenu 784 785menu "MFD GPIO expanders" 786 787config GPIO_ADP5520 788 tristate "GPIO Support for ADP5520 PMIC" 789 depends on PMIC_ADP5520 790 help 791 This option enables support for on-chip GPIO found 792 on Analog Devices ADP5520 PMICs. 793 794config GPIO_ARIZONA 795 tristate "Wolfson Microelectronics Arizona class devices" 796 depends on MFD_ARIZONA 797 help 798 Support for GPIOs on Wolfson Arizona class devices. 799 800config GPIO_CRYSTAL_COVE 801 tristate "GPIO support for Crystal Cove PMIC" 802 depends on INTEL_SOC_PMIC 803 select GPIOLIB_IRQCHIP 804 help 805 Support for GPIO pins on Crystal Cove PMIC. 806 807 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 808 inside. 809 810 This driver can also be built as a module. If so, the module will be 811 called gpio-crystalcove. 812 813config GPIO_CS5535 814 tristate "AMD CS5535/CS5536 GPIO support" 815 depends on MFD_CS5535 816 help 817 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 818 can be used for quite a number of things. The CS5535/6 is found on 819 AMD Geode and Lemote Yeeloong devices. 820 821 If unsure, say N. 822 823config GPIO_DA9052 824 tristate "Dialog DA9052 GPIO" 825 depends on PMIC_DA9052 826 help 827 Say yes here to enable the GPIO driver for the DA9052 chip. 828 829config GPIO_DA9055 830 tristate "Dialog Semiconductor DA9055 GPIO" 831 depends on MFD_DA9055 832 help 833 Say yes here to enable the GPIO driver for the DA9055 chip. 834 835 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 836 be controller by this driver. 837 838 If driver is built as a module it will be called gpio-da9055. 839 840config GPIO_DLN2 841 tristate "Diolan DLN2 GPIO support" 842 depends on MFD_DLN2 843 select GPIOLIB_IRQCHIP 844 845 help 846 Select this option to enable GPIO driver for the Diolan DLN2 847 board. 848 849 This driver can also be built as a module. If so, the module 850 will be called gpio-dln2. 851 852config GPIO_JANZ_TTL 853 tristate "Janz VMOD-TTL Digital IO Module" 854 depends on MFD_JANZ_CMODIO 855 help 856 This enables support for the Janz VMOD-TTL Digital IO module. 857 This driver provides support for driving the pins in output 858 mode only. Input mode is not supported. 859 860config GPIO_KEMPLD 861 tristate "Kontron ETX / COMexpress GPIO" 862 depends on MFD_KEMPLD 863 help 864 This enables support for the PLD GPIO interface on some Kontron ETX 865 and COMexpress (ETXexpress) modules. 866 867 This driver can also be built as a module. If so, the module will be 868 called gpio-kempld. 869 870config GPIO_LP3943 871 tristate "TI/National Semiconductor LP3943 GPIO expander" 872 depends on MFD_LP3943 873 help 874 GPIO driver for LP3943 MFD. 875 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 876 Open drain outputs are required for this usage. 877 878config GPIO_MAX77620 879 tristate "GPIO support for PMIC MAX77620 and MAX20024" 880 depends on MFD_MAX77620 881 help 882 GPIO driver for MAX77620 and MAX20024 PMIC from Maxim Semiconductor. 883 MAX77620 PMIC has 8 pins that can be configured as GPIOs. The 884 driver also provides interrupt support for each of the gpios. 885 Say yes here to enable the max77620 to be used as gpio controller. 886 887config GPIO_MSIC 888 bool "Intel MSIC mixed signal gpio support" 889 depends on MFD_INTEL_MSIC 890 help 891 Enable support for GPIO on intel MSIC controllers found in 892 intel MID devices 893 894config GPIO_PALMAS 895 bool "TI PALMAS series PMICs GPIO" 896 depends on MFD_PALMAS 897 help 898 Select this option to enable GPIO driver for the TI PALMAS 899 series chip family. 900 901config GPIO_RC5T583 902 bool "RICOH RC5T583 GPIO" 903 depends on MFD_RC5T583 904 help 905 Select this option to enable GPIO driver for the Ricoh RC5T583 906 chip family. 907 This driver provides the support for driving/reading the gpio pins 908 of RC5T583 device through standard gpio library. 909 910config GPIO_STMPE 911 bool "STMPE GPIOs" 912 depends on MFD_STMPE 913 depends on OF_GPIO 914 select GPIOLIB_IRQCHIP 915 help 916 This enables support for the GPIOs found on the STMPE I/O 917 Expanders. 918 919config GPIO_TC3589X 920 bool "TC3589X GPIOs" 921 depends on MFD_TC3589X 922 depends on OF_GPIO 923 select GPIOLIB_IRQCHIP 924 help 925 This enables support for the GPIOs found on the TC3589X 926 I/O Expander. 927 928config GPIO_TIMBERDALE 929 bool "Support for timberdale GPIO IP" 930 depends on MFD_TIMBERDALE 931 ---help--- 932 Add support for the GPIO IP in the timberdale FPGA. 933 934config GPIO_TPS65086 935 tristate "TI TPS65086 GPO" 936 depends on MFD_TPS65086 937 help 938 This driver supports the GPO on TI TPS65086x PMICs. 939 940config GPIO_TPS65218 941 tristate "TPS65218 GPIO" 942 depends on MFD_TPS65218 943 help 944 Select this option to enable GPIO driver for the TPS65218 945 chip family. 946 947config GPIO_TPS6586X 948 bool "TPS6586X GPIO" 949 depends on MFD_TPS6586X 950 help 951 Select this option to enable GPIO driver for the TPS6586X 952 chip family. 953 954config GPIO_TPS65910 955 bool "TPS65910 GPIO" 956 depends on MFD_TPS65910 957 help 958 Select this option to enable GPIO driver for the TPS65910 959 chip family. 960 961config GPIO_TPS65912 962 tristate "TI TPS65912 GPIO" 963 depends on MFD_TPS65912 964 help 965 This driver supports TPS65912 gpio chip 966 967config GPIO_TWL4030 968 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 969 depends on TWL4030_CORE 970 help 971 Say yes here to access the GPIO signals of various multi-function 972 power management chips from Texas Instruments. 973 974config GPIO_TWL6040 975 tristate "TWL6040 GPO" 976 depends on TWL6040_CORE 977 help 978 Say yes here to access the GPO signals of twl6040 979 audio chip from Texas Instruments. 980 981config GPIO_UCB1400 982 tristate "Philips UCB1400 GPIO" 983 depends on UCB1400_CORE 984 help 985 This enables support for the Philips UCB1400 GPIO pins. 986 The UCB1400 is an AC97 audio codec. 987 988config GPIO_WM831X 989 tristate "WM831x GPIOs" 990 depends on MFD_WM831X 991 help 992 Say yes here to access the GPIO signals of WM831x power management 993 chips from Wolfson Microelectronics. 994 995config GPIO_WM8350 996 tristate "WM8350 GPIOs" 997 depends on MFD_WM8350 998 help 999 Say yes here to access the GPIO signals of WM8350 power management 1000 chips from Wolfson Microelectronics. 1001 1002config GPIO_WM8994 1003 tristate "WM8994 GPIOs" 1004 depends on MFD_WM8994 1005 help 1006 Say yes here to access the GPIO signals of WM8994 audio hub 1007 CODECs from Wolfson Microelectronics. 1008 1009endmenu 1010 1011menu "PCI GPIO expanders" 1012 depends on PCI 1013 1014config GPIO_AMD8111 1015 tristate "AMD 8111 GPIO driver" 1016 help 1017 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1018 1019 Note, that usually system firmware/ACPI handles GPIO pins on their 1020 own and users might easily break their systems with uncarefull usage 1021 of this driver! 1022 1023 If unsure, say N 1024 1025config GPIO_BT8XX 1026 tristate "BT8XX GPIO abuser" 1027 depends on VIDEO_BT848=n 1028 help 1029 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1030 as a cheap PCI GPIO card. 1031 1032 This chip can be found on Miro, Hauppauge and STB TV-cards. 1033 1034 The card needs to be physically altered for using it as a 1035 GPIO card. For more information on how to build a GPIO card 1036 from a BT8xx TV card, see the documentation file at 1037 Documentation/bt8xxgpio.txt 1038 1039 If unsure, say N. 1040 1041config GPIO_INTEL_MID 1042 bool "Intel MID GPIO support" 1043 depends on X86_INTEL_MID 1044 select GPIOLIB_IRQCHIP 1045 help 1046 Say Y here to support Intel MID GPIO. 1047 1048config GPIO_MERRIFIELD 1049 tristate "Intel Merrifield GPIO support" 1050 depends on X86_INTEL_MID 1051 select GPIOLIB_IRQCHIP 1052 help 1053 Say Y here to support Intel Merrifield GPIO. 1054 1055config GPIO_ML_IOH 1056 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1057 select GENERIC_IRQ_CHIP 1058 help 1059 ML7213 is companion chip for Intel Atom E6xx series. 1060 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1061 Hub) which is for IVI(In-Vehicle Infotainment) use. 1062 This driver can access the IOH's GPIO device. 1063 1064config GPIO_PCH 1065 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1066 depends on X86_32 || MIPS || COMPILE_TEST 1067 select GENERIC_IRQ_CHIP 1068 help 1069 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1070 which is an IOH(Input/Output Hub) for x86 embedded processor. 1071 This driver can access PCH GPIO device. 1072 1073 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1074 Output Hub), ML7223 and ML7831. 1075 ML7223 IOH is for MP(Media Phone) use. 1076 ML7831 IOH is for general purpose use. 1077 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1078 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1079 1080config GPIO_RDC321X 1081 tristate "RDC R-321x GPIO support" 1082 select MFD_CORE 1083 select MFD_RDC321X 1084 help 1085 Support for the RDC R321x SoC GPIOs over southbridge 1086 PCI configuration space. 1087 1088config GPIO_SODAVILLE 1089 bool "Intel Sodaville GPIO support" 1090 depends on X86 && OF 1091 select GPIO_GENERIC 1092 select GENERIC_IRQ_CHIP 1093 help 1094 Say Y here to support Intel Sodaville GPIO. 1095 1096endmenu 1097 1098menu "SPI GPIO expanders" 1099 depends on SPI_MASTER 1100 1101config GPIO_74X164 1102 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1103 depends on OF_GPIO 1104 help 1105 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1106 shift registers. This driver can be used to provide access 1107 to more gpio outputs. 1108 1109config GPIO_MAX7301 1110 tristate "Maxim MAX7301 GPIO expander" 1111 select GPIO_MAX730X 1112 help 1113 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1114 1115config GPIO_MC33880 1116 tristate "Freescale MC33880 high-side/low-side switch" 1117 help 1118 SPI driver for Freescale MC33880 high-side/low-side switch. 1119 This provides GPIO interface supporting inputs and outputs. 1120 1121config GPIO_PISOSR 1122 tristate "Generic parallel-in/serial-out shift register" 1123 help 1124 GPIO driver for SPI compatible parallel-in/serial-out shift 1125 registers. These are input only devices. 1126 1127endmenu 1128 1129menu "SPI or I2C GPIO expanders" 1130 depends on (SPI_MASTER && !I2C) || I2C 1131 1132config GPIO_MCP23S08 1133 tristate "Microchip MCP23xxx I/O expander" 1134 select GPIOLIB_IRQCHIP 1135 help 1136 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1137 I/O expanders. 1138 This provides a GPIO interface supporting inputs and outputs. 1139 The I2C versions of the chips can be used as interrupt-controller. 1140 1141endmenu 1142 1143menu "USB GPIO expanders" 1144 depends on USB 1145 1146config GPIO_VIPERBOARD 1147 tristate "Viperboard GPIO a & b support" 1148 depends on MFD_VIPERBOARD 1149 help 1150 Say yes here to access the GPIO signals of Nano River 1151 Technologies Viperboard. There are two GPIO chips on the 1152 board: gpioa and gpiob. 1153 See viperboard API specification and Nano 1154 River Tech's viperboard.h for detailed meaning 1155 of the module parameters. 1156 1157endmenu 1158 1159endif 1160