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 || COMPILE_TEST 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 406 default y 407 depends on ARCH_TEGRA || COMPILE_TEST 408 409config GPIO_TS4800 410 tristate "TS-4800 DIO blocks and compatibles" 411 depends on OF_GPIO 412 depends on SOC_IMX51 || COMPILE_TEST 413 select GPIO_GENERIC 414 help 415 This driver support TS-4800 FPGA GPIO controllers. 416 417config GPIO_TZ1090 418 bool "Toumaz Xenif TZ1090 GPIO support" 419 depends on SOC_TZ1090 420 select GENERIC_IRQ_CHIP 421 default y 422 help 423 Say yes here to support Toumaz Xenif TZ1090 GPIOs. 424 425config GPIO_TZ1090_PDC 426 bool "Toumaz Xenif TZ1090 PDC GPIO support" 427 depends on SOC_TZ1090 428 default y 429 help 430 Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. 431 432config GPIO_VF610 433 def_bool y 434 depends on ARCH_MXC && SOC_VF610 435 select GPIOLIB_IRQCHIP 436 help 437 Say yes here to support Vybrid vf610 GPIOs. 438 439config GPIO_VR41XX 440 tristate "NEC VR4100 series General-purpose I/O Uint support" 441 depends on CPU_VR41XX 442 help 443 Say yes here to support the NEC VR4100 series General-purpose I/O Uint 444 445config GPIO_VX855 446 tristate "VIA VX855/VX875 GPIO" 447 depends on PCI 448 select MFD_CORE 449 select MFD_VX855 450 help 451 Support access to the VX855/VX875 GPIO lines through the gpio library. 452 453 This driver provides common support for accessing the device, 454 additional drivers must be enabled in order to use the 455 functionality of the device. 456 457config GPIO_XGENE 458 bool "APM X-Gene GPIO controller support" 459 depends on ARM64 && OF_GPIO 460 help 461 This driver is to support the GPIO block within the APM X-Gene SoC 462 platform's generic flash controller. The GPIO pins are muxed with 463 the generic flash controller's address and data pins. Say yes 464 here to enable the GFC GPIO functionality. 465 466config GPIO_XGENE_SB 467 tristate "APM X-Gene GPIO standby controller support" 468 depends on ARCH_XGENE && OF_GPIO 469 select GPIO_GENERIC 470 select GPIOLIB_IRQCHIP 471 help 472 This driver supports the GPIO block within the APM X-Gene 473 Standby Domain. Say yes here to enable the GPIO functionality. 474 475config GPIO_XILINX 476 tristate "Xilinx GPIO support" 477 depends on OF_GPIO 478 help 479 Say yes here to support the Xilinx FPGA GPIO device 480 481config GPIO_XLP 482 tristate "Netlogic XLP GPIO support" 483 depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST) 484 select GPIOLIB_IRQCHIP 485 help 486 This driver provides support for GPIO interface on Netlogic XLP MIPS64 487 SoCs. Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, 488 XLP9XX and XLP5XX. 489 490 If unsure, say N. 491 492config GPIO_XTENSA 493 bool "Xtensa GPIO32 support" 494 depends on XTENSA 495 depends on HAVE_XTENSA_GPIO32 496 depends on !SMP 497 help 498 Say yes here to support the Xtensa internal GPIO32 IMPWIRE (input) 499 and EXPSTATE (output) ports 500 501config GPIO_ZEVIO 502 bool "LSI ZEVIO SoC memory mapped GPIOs" 503 depends on ARM && OF_GPIO 504 help 505 Say yes here to support the GPIO controller in LSI ZEVIO SoCs. 506 507config GPIO_ZYNQ 508 tristate "Xilinx Zynq GPIO support" 509 depends on ARCH_ZYNQ || ARCH_ZYNQMP 510 select GPIOLIB_IRQCHIP 511 help 512 Say yes here to support Xilinx Zynq GPIO controller. 513 514config GPIO_ZX 515 bool "ZTE ZX GPIO support" 516 select GPIOLIB_IRQCHIP 517 help 518 Say yes here to support the GPIO device on ZTE ZX SoCs. 519 520config GPIO_LOONGSON1 521 tristate "Loongson1 GPIO support" 522 depends on MACH_LOONGSON32 523 select GPIO_GENERIC 524 help 525 Say Y or M here to support GPIO on Loongson1 SoCs. 526 527endmenu 528 529menu "Port-mapped I/O GPIO drivers" 530 depends on X86 # Unconditional I/O space access 531 532config GPIO_104_DIO_48E 533 tristate "ACCES 104-DIO-48E GPIO support" 534 depends on ISA_BUS_API 535 select GPIOLIB_IRQCHIP 536 help 537 Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E, 538 104-DIO-24E). The base port addresses for the devices may be 539 configured via the base module parameter. The interrupt line numbers 540 for the devices may be configured via the irq module parameter. 541 542config GPIO_104_IDIO_16 543 tristate "ACCES 104-IDIO-16 GPIO support" 544 depends on ISA_BUS_API 545 select GPIOLIB_IRQCHIP 546 help 547 Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16, 548 104-IDIO-16E, 104-IDO-16, 104-IDIO-8, 104-IDIO-8E, 104-IDO-8). The 549 base port addresses for the devices may be configured via the base 550 module parameter. The interrupt line numbers for the devices may be 551 configured via the irq module parameter. 552 553config GPIO_104_IDI_48 554 tristate "ACCES 104-IDI-48 GPIO support" 555 depends on ISA_BUS_API 556 select GPIOLIB_IRQCHIP 557 help 558 Enables GPIO support for the ACCES 104-IDI-48 family (104-IDI-48A, 559 104-IDI-48AC, 104-IDI-48B, 104-IDI-48BC). The base port addresses for 560 the devices may be configured via the base module parameter. The 561 interrupt line numbers for the devices may be configured via the irq 562 module parameter. 563 564config GPIO_F7188X 565 tristate "F71869, F71869A, F71882FG, F71889F and F81866 GPIO support" 566 help 567 This option enables support for GPIOs found on Fintek Super-I/O 568 chips F71869, F71869A, F71882FG, F71889F and F81866. 569 570 To compile this driver as a module, choose M here: the module will 571 be called f7188x-gpio. 572 573config GPIO_IT87 574 tristate "IT87xx GPIO support" 575 help 576 Say yes here to support GPIO functionality of IT87xx Super I/O chips. 577 578 This driver is tested with ITE IT8728 and IT8732 Super I/O chips, and 579 supports the IT8761E, IT8620E and IT8628E Super I/O chip as well. 580 581 To compile this driver as a module, choose M here: the module will 582 be called gpio_it87 583 584config GPIO_SCH 585 tristate "Intel SCH/TunnelCreek/Centerton/Quark X1000 GPIO" 586 depends on PCI 587 select MFD_CORE 588 select LPC_SCH 589 help 590 Say yes here to support GPIO interface on Intel Poulsbo SCH, 591 Intel Tunnel Creek processor, Intel Centerton processor or 592 Intel Quark X1000 SoC. 593 594 The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are 595 powered by the core power rail and are turned off during sleep 596 modes (S3 and higher). The remaining four GPIOs are powered by 597 the Intel SCH suspend power supply. These GPIOs remain 598 active during S3. The suspend powered GPIOs can be used to wake the 599 system from the Suspend-to-RAM state. 600 601 The Intel Tunnel Creek processor has 5 GPIOs powered by the 602 core power rail and 9 from suspend power supply. 603 604 The Intel Centerton processor has a total of 30 GPIO pins. 605 Twenty-one are powered by the core power rail and 9 from the 606 suspend power supply. 607 608 The Intel Quark X1000 SoC has 2 GPIOs powered by the core 609 power well and 6 from the suspend power well. 610 611config GPIO_SCH311X 612 tristate "SMSC SCH311x SuperI/O GPIO" 613 help 614 Driver to enable the GPIOs found on SMSC SMSC SCH3112, SCH3114 and 615 SCH3116 "Super I/O" chipsets. 616 617 To compile this driver as a module, choose M here: the module will 618 be called gpio-sch311x. 619 620config GPIO_TS5500 621 tristate "TS-5500 DIO blocks and compatibles" 622 depends on TS5500 || COMPILE_TEST 623 help 624 This driver supports Digital I/O exposed by pin blocks found on some 625 Technologic Systems platforms. It includes, but is not limited to, 3 626 blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600 627 LCD port. 628 629config GPIO_WS16C48 630 tristate "WinSystems WS16C48 GPIO support" 631 depends on ISA_BUS_API 632 select GPIOLIB_IRQCHIP 633 help 634 Enables GPIO support for the WinSystems WS16C48. The base port 635 addresses for the devices may be configured via the base module 636 parameter. The interrupt line numbers for the devices may be 637 configured via the irq module parameter. 638 639endmenu 640 641menu "I2C GPIO expanders" 642 depends on I2C 643 644config GPIO_ADP5588 645 tristate "ADP5588 I2C GPIO expander" 646 help 647 This option enables support for 18 GPIOs found 648 on Analog Devices ADP5588 GPIO Expanders. 649 650config GPIO_ADP5588_IRQ 651 bool "Interrupt controller support for ADP5588" 652 depends on GPIO_ADP5588=y 653 help 654 Say yes here to enable the adp5588 to be used as an interrupt 655 controller. It requires the driver to be built in the kernel. 656 657config GPIO_ADNP 658 tristate "Avionic Design N-bit GPIO expander" 659 depends on OF_GPIO 660 select GPIOLIB_IRQCHIP 661 help 662 This option enables support for N GPIOs found on Avionic Design 663 I2C GPIO expanders. The register space will be extended by powers 664 of two, so the controller will need to accommodate for that. For 665 example: if a controller provides 48 pins, 6 registers will be 666 enough to represent all pins, but the driver will assume a 667 register layout for 64 pins (8 registers). 668 669config GPIO_MAX7300 670 tristate "Maxim MAX7300 GPIO expander" 671 select GPIO_MAX730X 672 help 673 GPIO driver for Maxim MAX7300 I2C-based GPIO expander. 674 675config GPIO_MAX732X 676 tristate "MAX7319, MAX7320-7327 I2C Port Expanders" 677 help 678 Say yes here to support the MAX7319, MAX7320-7327 series of I2C 679 Port Expanders. Each IO port on these chips has a fixed role of 680 Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain 681 Input and Output (designed by 'P'). The combinations are listed 682 below: 683 684 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), 685 max7322 (4I4O), max7323 (4P4O) 686 687 16 bits: max7324 (8I8O), max7325 (8P8O), 688 max7326 (4I12O), max7327 (4P12O) 689 690 Board setup code must specify the model to use, and the start 691 number for these GPIOs. 692 693config GPIO_MAX732X_IRQ 694 bool "Interrupt controller support for MAX732x" 695 depends on GPIO_MAX732X=y 696 select GPIOLIB_IRQCHIP 697 help 698 Say yes here to enable the max732x to be used as an interrupt 699 controller. It requires the driver to be built in the kernel. 700 701config GPIO_MC9S08DZ60 702 bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" 703 depends on I2C=y && MACH_MX35_3DS 704 help 705 Select this to enable the MC9S08DZ60 GPIO driver 706 707config GPIO_PCA953X 708 tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" 709 help 710 Say yes here to provide access to several register-oriented 711 SMBus I/O expanders, made mostly by NXP or TI. Compatible 712 models include: 713 714 4 bits: pca9536, pca9537 715 716 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, 717 pca9556, pca9557, pca9574, tca6408, xra1202 718 719 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, 720 tca6416 721 722 24 bits: tca6424 723 724 40 bits: pca9505, pca9698 725 726config GPIO_PCA953X_IRQ 727 bool "Interrupt controller support for PCA953x" 728 depends on GPIO_PCA953X=y 729 select GPIOLIB_IRQCHIP 730 help 731 Say yes here to enable the pca953x to be used as an interrupt 732 controller. It requires the driver to be built in the kernel. 733 734config GPIO_PCF857X 735 tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" 736 select GPIOLIB_IRQCHIP 737 select IRQ_DOMAIN 738 help 739 Say yes here to provide access to most "quasi-bidirectional" I2C 740 GPIO expanders used for additional digital outputs or inputs. 741 Most of these parts are from NXP, though TI is a second source for 742 some of them. Compatible models include: 743 744 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, 745 pca9670, pca9672, pca9674, pca9674a, 746 max7328, max7329 747 748 16 bits: pcf8575, pcf8575c, pca8575, 749 pca9671, pca9673, pca9675 750 751 Your board setup code will need to declare the expanders in 752 use, and assign numbers to the GPIOs they expose. Those GPIOs 753 can then be used from drivers and other kernel code, just like 754 other GPIOs, but only accessible from task contexts. 755 756 This driver provides an in-kernel interface to those GPIOs using 757 platform-neutral GPIO calls. 758 759config GPIO_SX150X 760 bool "Semtech SX150x I2C GPIO expander" 761 depends on I2C=y 762 select GPIOLIB_IRQCHIP 763 default n 764 help 765 Say yes here to provide support for Semtech SX150-series I2C 766 GPIO expanders. Compatible models include: 767 768 8 bits: sx1508q 769 16 bits: sx1509q 770 771config GPIO_TPIC2810 772 tristate "TPIC2810 8-Bit I2C GPO expander" 773 help 774 Say yes here to enable the GPO driver for the TI TPIC2810 chip. 775 776 To compile this driver as a module, choose M here: the module will 777 be called gpio-tpic2810. 778 779endmenu 780 781menu "MFD GPIO expanders" 782 783config GPIO_ADP5520 784 tristate "GPIO Support for ADP5520 PMIC" 785 depends on PMIC_ADP5520 786 help 787 This option enables support for on-chip GPIO found 788 on Analog Devices ADP5520 PMICs. 789 790config GPIO_ARIZONA 791 tristate "Wolfson Microelectronics Arizona class devices" 792 depends on MFD_ARIZONA 793 help 794 Support for GPIOs on Wolfson Arizona class devices. 795 796config GPIO_CRYSTAL_COVE 797 tristate "GPIO support for Crystal Cove PMIC" 798 depends on INTEL_SOC_PMIC 799 select GPIOLIB_IRQCHIP 800 help 801 Support for GPIO pins on Crystal Cove PMIC. 802 803 Say Yes if you have a Intel SoC based tablet with Crystal Cove PMIC 804 inside. 805 806 This driver can also be built as a module. If so, the module will be 807 called gpio-crystalcove. 808 809config GPIO_CS5535 810 tristate "AMD CS5535/CS5536 GPIO support" 811 depends on MFD_CS5535 812 help 813 The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that 814 can be used for quite a number of things. The CS5535/6 is found on 815 AMD Geode and Lemote Yeeloong devices. 816 817 If unsure, say N. 818 819config GPIO_DA9052 820 tristate "Dialog DA9052 GPIO" 821 depends on PMIC_DA9052 822 help 823 Say yes here to enable the GPIO driver for the DA9052 chip. 824 825config GPIO_DA9055 826 tristate "Dialog Semiconductor DA9055 GPIO" 827 depends on MFD_DA9055 828 help 829 Say yes here to enable the GPIO driver for the DA9055 chip. 830 831 The Dialog DA9055 PMIC chip has 3 GPIO pins that can be 832 be controller by this driver. 833 834 If driver is built as a module it will be called gpio-da9055. 835 836config GPIO_DLN2 837 tristate "Diolan DLN2 GPIO support" 838 depends on MFD_DLN2 839 select GPIOLIB_IRQCHIP 840 841 help 842 Select this option to enable GPIO driver for the Diolan DLN2 843 board. 844 845 This driver can also be built as a module. If so, the module 846 will be called gpio-dln2. 847 848config GPIO_JANZ_TTL 849 tristate "Janz VMOD-TTL Digital IO Module" 850 depends on MFD_JANZ_CMODIO 851 help 852 This enables support for the Janz VMOD-TTL Digital IO module. 853 This driver provides support for driving the pins in output 854 mode only. Input mode is not supported. 855 856config GPIO_KEMPLD 857 tristate "Kontron ETX / COMexpress GPIO" 858 depends on MFD_KEMPLD 859 help 860 This enables support for the PLD GPIO interface on some Kontron ETX 861 and COMexpress (ETXexpress) modules. 862 863 This driver can also be built as a module. If so, the module will be 864 called gpio-kempld. 865 866config GPIO_LP3943 867 tristate "TI/National Semiconductor LP3943 GPIO expander" 868 depends on MFD_LP3943 869 help 870 GPIO driver for LP3943 MFD. 871 LP3943 can be used as a GPIO expander which provides up to 16 GPIOs. 872 Open drain outputs are required for this usage. 873 874config GPIO_MSIC 875 bool "Intel MSIC mixed signal gpio support" 876 depends on MFD_INTEL_MSIC 877 help 878 Enable support for GPIO on intel MSIC controllers found in 879 intel MID devices 880 881config GPIO_PALMAS 882 bool "TI PALMAS series PMICs GPIO" 883 depends on MFD_PALMAS 884 help 885 Select this option to enable GPIO driver for the TI PALMAS 886 series chip family. 887 888config GPIO_RC5T583 889 bool "RICOH RC5T583 GPIO" 890 depends on MFD_RC5T583 891 help 892 Select this option to enable GPIO driver for the Ricoh RC5T583 893 chip family. 894 This driver provides the support for driving/reading the gpio pins 895 of RC5T583 device through standard gpio library. 896 897config GPIO_STMPE 898 bool "STMPE GPIOs" 899 depends on MFD_STMPE 900 depends on OF_GPIO 901 select GPIOLIB_IRQCHIP 902 help 903 This enables support for the GPIOs found on the STMPE I/O 904 Expanders. 905 906config GPIO_TC3589X 907 bool "TC3589X GPIOs" 908 depends on MFD_TC3589X 909 depends on OF_GPIO 910 select GPIOLIB_IRQCHIP 911 help 912 This enables support for the GPIOs found on the TC3589X 913 I/O Expander. 914 915config GPIO_TIMBERDALE 916 bool "Support for timberdale GPIO IP" 917 depends on MFD_TIMBERDALE 918 ---help--- 919 Add support for the GPIO IP in the timberdale FPGA. 920 921config GPIO_TPS65086 922 tristate "TI TPS65086 GPO" 923 depends on MFD_TPS65086 924 help 925 This driver supports the GPO on TI TPS65086x PMICs. 926 927config GPIO_TPS65218 928 tristate "TPS65218 GPIO" 929 depends on MFD_TPS65218 930 help 931 Select this option to enable GPIO driver for the TPS65218 932 chip family. 933 934config GPIO_TPS6586X 935 bool "TPS6586X GPIO" 936 depends on MFD_TPS6586X 937 help 938 Select this option to enable GPIO driver for the TPS6586X 939 chip family. 940 941config GPIO_TPS65910 942 bool "TPS65910 GPIO" 943 depends on MFD_TPS65910 944 help 945 Select this option to enable GPIO driver for the TPS65910 946 chip family. 947 948config GPIO_TPS65912 949 tristate "TI TPS65912 GPIO" 950 depends on MFD_TPS65912 951 help 952 This driver supports TPS65912 gpio chip 953 954config GPIO_TWL4030 955 tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" 956 depends on TWL4030_CORE 957 help 958 Say yes here to access the GPIO signals of various multi-function 959 power management chips from Texas Instruments. 960 961config GPIO_TWL6040 962 tristate "TWL6040 GPO" 963 depends on TWL6040_CORE 964 help 965 Say yes here to access the GPO signals of twl6040 966 audio chip from Texas Instruments. 967 968config GPIO_UCB1400 969 tristate "Philips UCB1400 GPIO" 970 depends on UCB1400_CORE 971 help 972 This enables support for the Philips UCB1400 GPIO pins. 973 The UCB1400 is an AC97 audio codec. 974 975config GPIO_WM831X 976 tristate "WM831x GPIOs" 977 depends on MFD_WM831X 978 help 979 Say yes here to access the GPIO signals of WM831x power management 980 chips from Wolfson Microelectronics. 981 982config GPIO_WM8350 983 tristate "WM8350 GPIOs" 984 depends on MFD_WM8350 985 help 986 Say yes here to access the GPIO signals of WM8350 power management 987 chips from Wolfson Microelectronics. 988 989config GPIO_WM8994 990 tristate "WM8994 GPIOs" 991 depends on MFD_WM8994 992 help 993 Say yes here to access the GPIO signals of WM8994 audio hub 994 CODECs from Wolfson Microelectronics. 995 996endmenu 997 998menu "PCI GPIO expanders" 999 depends on PCI 1000 1001config GPIO_AMD8111 1002 tristate "AMD 8111 GPIO driver" 1003 help 1004 The AMD 8111 south bridge contains 32 GPIO pins which can be used. 1005 1006 Note, that usually system firmware/ACPI handles GPIO pins on their 1007 own and users might easily break their systems with uncarefull usage 1008 of this driver! 1009 1010 If unsure, say N 1011 1012config GPIO_BT8XX 1013 tristate "BT8XX GPIO abuser" 1014 depends on VIDEO_BT848=n 1015 help 1016 The BT8xx frame grabber chip has 24 GPIO pins that can be abused 1017 as a cheap PCI GPIO card. 1018 1019 This chip can be found on Miro, Hauppauge and STB TV-cards. 1020 1021 The card needs to be physically altered for using it as a 1022 GPIO card. For more information on how to build a GPIO card 1023 from a BT8xx TV card, see the documentation file at 1024 Documentation/bt8xxgpio.txt 1025 1026 If unsure, say N. 1027 1028config GPIO_INTEL_MID 1029 bool "Intel Mid GPIO support" 1030 depends on X86 1031 select GPIOLIB_IRQCHIP 1032 help 1033 Say Y here to support Intel Mid GPIO. 1034 1035config GPIO_ML_IOH 1036 tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" 1037 select GENERIC_IRQ_CHIP 1038 help 1039 ML7213 is companion chip for Intel Atom E6xx series. 1040 This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output 1041 Hub) which is for IVI(In-Vehicle Infotainment) use. 1042 This driver can access the IOH's GPIO device. 1043 1044config GPIO_PCH 1045 tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" 1046 depends on X86_32 || MIPS || COMPILE_TEST 1047 select GENERIC_IRQ_CHIP 1048 help 1049 This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff 1050 which is an IOH(Input/Output Hub) for x86 embedded processor. 1051 This driver can access PCH GPIO device. 1052 1053 This driver also can be used for LAPIS Semiconductor IOH(Input/ 1054 Output Hub), ML7223 and ML7831. 1055 ML7223 IOH is for MP(Media Phone) use. 1056 ML7831 IOH is for general purpose use. 1057 ML7223/ML7831 is companion chip for Intel Atom E6xx series. 1058 ML7223/ML7831 is completely compatible for Intel EG20T PCH. 1059 1060config GPIO_RDC321X 1061 tristate "RDC R-321x GPIO support" 1062 select MFD_CORE 1063 select MFD_RDC321X 1064 help 1065 Support for the RDC R321x SoC GPIOs over southbridge 1066 PCI configuration space. 1067 1068config GPIO_SODAVILLE 1069 bool "Intel Sodaville GPIO support" 1070 depends on X86 && OF 1071 select GPIO_GENERIC 1072 select GENERIC_IRQ_CHIP 1073 help 1074 Say Y here to support Intel Sodaville GPIO. 1075 1076endmenu 1077 1078menu "SPI GPIO expanders" 1079 depends on SPI_MASTER 1080 1081config GPIO_74X164 1082 tristate "74x164 serial-in/parallel-out 8-bits shift register" 1083 depends on OF 1084 help 1085 Driver for 74x164 compatible serial-in/parallel-out 8-outputs 1086 shift registers. This driver can be used to provide access 1087 to more gpio outputs. 1088 1089config GPIO_MAX7301 1090 tristate "Maxim MAX7301 GPIO expander" 1091 select GPIO_MAX730X 1092 help 1093 GPIO driver for Maxim MAX7301 SPI-based GPIO expander. 1094 1095config GPIO_MC33880 1096 tristate "Freescale MC33880 high-side/low-side switch" 1097 help 1098 SPI driver for Freescale MC33880 high-side/low-side switch. 1099 This provides GPIO interface supporting inputs and outputs. 1100 1101config GPIO_PISOSR 1102 tristate "Generic parallel-in/serial-out shift register" 1103 help 1104 GPIO driver for SPI compatible parallel-in/serial-out shift 1105 registers. These are input only devices. 1106 1107endmenu 1108 1109menu "SPI or I2C GPIO expanders" 1110 depends on (SPI_MASTER && !I2C) || I2C 1111 1112config GPIO_MCP23S08 1113 tristate "Microchip MCP23xxx I/O expander" 1114 select GPIOLIB_IRQCHIP 1115 help 1116 SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 1117 I/O expanders. 1118 This provides a GPIO interface supporting inputs and outputs. 1119 The I2C versions of the chips can be used as interrupt-controller. 1120 1121endmenu 1122 1123menu "USB GPIO expanders" 1124 depends on USB 1125 1126config GPIO_VIPERBOARD 1127 tristate "Viperboard GPIO a & b support" 1128 depends on MFD_VIPERBOARD 1129 help 1130 Say yes here to access the GPIO signals of Nano River 1131 Technologies Viperboard. There are two GPIO chips on the 1132 board: gpioa and gpiob. 1133 See viperboard API specification and Nano 1134 River Tech's viperboard.h for detailed meaning 1135 of the module parameters. 1136 1137endmenu 1138 1139endif 1140