| # |
| # GPIO infrastructure and drivers |
| # |
| |
| config ARCH_HAVE_CUSTOM_GPIO_H |
| bool |
| help |
| Selecting this config option from the architecture Kconfig allows |
| the architecture to provide a custom asm/gpio.h implementation |
| overriding the default implementations. New uses of this are |
| strongly discouraged. |
| |
| config ARCH_WANT_OPTIONAL_GPIOLIB |
| bool |
| help |
| Select this config option from the architecture Kconfig, if |
| it is possible to use gpiolib on the architecture, but let the |
| user decide whether to actually build it or not. |
| Select this instead of ARCH_REQUIRE_GPIOLIB, if your architecture does |
| not depend on GPIOs being available, but rather let the user |
| decide whether he needs it or not. |
| |
| config ARCH_REQUIRE_GPIOLIB |
| bool |
| select GPIOLIB |
| help |
| Platforms select gpiolib if they use this infrastructure |
| for all their GPIOs, usually starting with ones integrated |
| into SOC processors. |
| Selecting this from the architecture code will cause the gpiolib |
| code to always get built in. |
| |
| |
| |
| menuconfig GPIOLIB |
| bool "GPIO Support" |
| depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB |
| select GENERIC_GPIO |
| help |
| This enables GPIO support through the generic GPIO library. |
| You only need to enable this, if you also want to enable |
| one or more of the GPIO drivers below. |
| |
| If unsure, say N. |
| |
| if GPIOLIB |
| |
| config OF_GPIO |
| def_bool y |
| depends on OF && !SPARC |
| |
| config DEBUG_GPIO |
| bool "Debug GPIO calls" |
| depends on DEBUG_KERNEL |
| help |
| Say Y here to add some extra checks and diagnostics to GPIO calls. |
| These checks help ensure that GPIOs have been properly initialized |
| before they are used, and that sleeping calls are not made from |
| non-sleeping contexts. They can make bitbanged serial protocols |
| slower. The diagnostics help catch the type of setup errors |
| that are most common when setting up new platforms or boards. |
| |
| config GPIO_SYSFS |
| bool "/sys/class/gpio/... (sysfs interface)" |
| depends on SYSFS && EXPERIMENTAL |
| help |
| Say Y here to add a sysfs interface for GPIOs. |
| |
| This is mostly useful to work around omissions in a system's |
| kernel support. Those are common in custom and semicustom |
| hardware assembled using standard kernels with a minimum of |
| custom patches. In those cases, userspace code may import |
| a given GPIO from the kernel, if no kernel driver requested it. |
| |
| Kernel drivers may also request that a particular GPIO be |
| exported to userspace; this can be useful when debugging. |
| |
| config GPIO_GENERIC |
| tristate |
| |
| # put drivers in the right section, in alphabetical order |
| |
| config GPIO_DA9052 |
| tristate "Dialog DA9052 GPIO" |
| depends on PMIC_DA9052 && BROKEN |
| help |
| Say yes here to enable the GPIO driver for the DA9052 chip. |
| |
| config GPIO_MAX730X |
| tristate |
| |
| comment "Memory mapped GPIO drivers:" |
| |
| config GPIO_GENERIC_PLATFORM |
| tristate "Generic memory-mapped GPIO controller support (MMIO platform device)" |
| select GPIO_GENERIC |
| help |
| Say yes here to support basic platform_device memory-mapped GPIO controllers. |
| |
| config GPIO_IT8761E |
| tristate "IT8761E GPIO support" |
| depends on X86 # unconditional access to IO space. |
| help |
| Say yes here to support GPIO functionality of IT8761E super I/O chip. |
| |
| config GPIO_EM |
| tristate "Emma Mobile GPIO" |
| depends on ARM |
| help |
| Say yes here to support GPIO on Renesas Emma Mobile SoCs. |
| |
| config GPIO_EP93XX |
| def_bool y |
| depends on ARCH_EP93XX |
| select GPIO_GENERIC |
| |
| config GPIO_MM_LANTIQ |
| bool "Lantiq Memory mapped GPIOs" |
| depends on LANTIQ && SOC_XWAY |
| help |
| This enables support for memory mapped GPIOs on the External Bus Unit |
| (EBU) found on Lantiq SoCs. The gpios are output only as they are |
| created by attaching a 16bit latch to the bus. |
| |
| config GPIO_MPC5200 |
| def_bool y |
| depends on PPC_MPC52xx |
| |
| config GPIO_MPC8XXX |
| bool "MPC512x/MPC8xxx GPIO support" |
| depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ |
| FSL_SOC_BOOKE || PPC_86xx |
| help |
| Say Y here if you're going to use hardware that connects to the |
| MPC512x/831x/834x/837x/8572/8610 GPIOs. |
| |
| config GPIO_MSM_V1 |
| tristate "Qualcomm MSM GPIO v1" |
| depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) |
| help |
| Say yes here to support the GPIO interface on ARM v6 based |
| Qualcomm MSM chips. Most of the pins on the MSM can be |
| selected for GPIO, and are controlled by this driver. |
| |
| config GPIO_MSM_V2 |
| tristate "Qualcomm MSM GPIO v2" |
| depends on GPIOLIB && ARCH_MSM |
| help |
| Say yes here to support the GPIO interface on ARM v7 based |
| Qualcomm MSM chips. Most of the pins on the MSM can be |
| selected for GPIO, and are controlled by this driver. |
| |
| config GPIO_MXC |
| def_bool y |
| depends on ARCH_MXC |
| select GPIO_GENERIC |
| select GENERIC_IRQ_CHIP |
| |
| config GPIO_MXS |
| def_bool y |
| depends on ARCH_MXS |
| select GPIO_GENERIC |
| select GENERIC_IRQ_CHIP |
| |
| config GPIO_PL061 |
| bool "PrimeCell PL061 GPIO support" |
| depends on ARM_AMBA |
| select GENERIC_IRQ_CHIP |
| help |
| Say yes here to support the PrimeCell PL061 GPIO device |
| |
| config GPIO_PXA |
| bool "PXA GPIO support" |
| depends on ARCH_PXA || ARCH_MMP |
| help |
| Say yes here to support the PXA GPIO device |
| |
| config GPIO_STA2X11 |
| bool "STA2x11/ConneXt GPIO support" |
| depends on MFD_STA2X11 |
| select GENERIC_IRQ_CHIP |
| help |
| Say yes here to support the STA2x11/ConneXt GPIO device. |
| The GPIO module has 128 GPIO pins with alternate functions. |
| |
| config GPIO_XILINX |
| bool "Xilinx GPIO support" |
| depends on PPC_OF || MICROBLAZE |
| help |
| Say yes here to support the Xilinx FPGA GPIO device |
| |
| config GPIO_VR41XX |
| tristate "NEC VR4100 series General-purpose I/O Uint support" |
| depends on CPU_VR41XX |
| help |
| Say yes here to support the NEC VR4100 series General-purpose I/O Uint |
| |
| config GPIO_SCH |
| tristate "Intel SCH/TunnelCreek/Centerton GPIO" |
| depends on PCI && X86 |
| select MFD_CORE |
| select LPC_SCH |
| help |
| Say yes here to support GPIO interface on Intel Poulsbo SCH, |
| Intel Tunnel Creek processor or Intel Centerton processor. |
| The Intel SCH contains a total of 14 GPIO pins. Ten GPIOs are |
| powered by the core power rail and are turned off during sleep |
| modes (S3 and higher). The remaining four GPIOs are powered by |
| the Intel SCH suspend power supply. These GPIOs remain |
| active during S3. The suspend powered GPIOs can be used to wake the |
| system from the Suspend-to-RAM state. |
| The Intel Tunnel Creek processor has 5 GPIOs powered by the |
| core power rail and 9 from suspend power supply. |
| The Intel Centerton processor has a total of 30 GPIO pins. |
| Twenty-one are powered by the core power rail and 9 from the |
| suspend power supply. |
| |
| config GPIO_ICH |
| tristate "Intel ICH GPIO" |
| depends on PCI && X86 |
| select MFD_CORE |
| select LPC_ICH |
| help |
| Say yes here to support the GPIO functionality of a number of Intel |
| ICH-based chipsets. Currently supported devices: ICH6, ICH7, ICH8 |
| ICH9, ICH10, Series 5/3400 (eg Ibex Peak), Series 6/C200 (eg |
| Cougar Point), NM10 (Tiger Point), and 3100 (Whitmore Lake). |
| |
| If unsure, say N. |
| |
| config GPIO_VX855 |
| tristate "VIA VX855/VX875 GPIO" |
| depends on PCI |
| select MFD_CORE |
| select MFD_VX855 |
| help |
| Support access to the VX855/VX875 GPIO lines through the gpio library. |
| |
| This driver provides common support for accessing the device, |
| additional drivers must be enabled in order to use the |
| functionality of the device. |
| |
| config GPIO_GE_FPGA |
| bool "GE FPGA based GPIO" |
| depends on GE_FPGA |
| help |
| Support for common GPIO functionality provided on some GE Single Board |
| Computers. |
| |
| This driver provides basic support (configure as input or output, read |
| and write pin state) for GPIO implemented in a number of GE single |
| board computers. |
| |
| comment "I2C GPIO expanders:" |
| |
| config GPIO_ARIZONA |
| tristate "Wolfson Microelectronics Arizona class devices" |
| depends on MFD_ARIZONA |
| help |
| Support for GPIOs on Wolfson Arizona class devices. |
| |
| config GPIO_MAX7300 |
| tristate "Maxim MAX7300 GPIO expander" |
| depends on I2C |
| select GPIO_MAX730X |
| help |
| GPIO driver for Maxim MAX7301 I2C-based GPIO expander. |
| |
| config GPIO_MAX732X |
| tristate "MAX7319, MAX7320-7327 I2C Port Expanders" |
| depends on I2C |
| help |
| Say yes here to support the MAX7319, MAX7320-7327 series of I2C |
| Port Expanders. Each IO port on these chips has a fixed role of |
| Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain |
| Input and Output (designed by 'P'). The combinations are listed |
| below: |
| |
| 8 bits: max7319 (8I), max7320 (8O), max7321 (8P), |
| max7322 (4I4O), max7323 (4P4O) |
| |
| 16 bits: max7324 (8I8O), max7325 (8P8O), |
| max7326 (4I12O), max7327 (4P12O) |
| |
| Board setup code must specify the model to use, and the start |
| number for these GPIOs. |
| |
| config GPIO_MAX732X_IRQ |
| bool "Interrupt controller support for MAX732x" |
| depends on GPIO_MAX732X=y && GENERIC_HARDIRQS |
| help |
| Say yes here to enable the max732x to be used as an interrupt |
| controller. It requires the driver to be built in the kernel. |
| |
| config GPIO_MC9S08DZ60 |
| bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions" |
| depends on I2C && MACH_MX35_3DS |
| help |
| Select this to enable the MC9S08DZ60 GPIO driver |
| |
| config GPIO_PCA953X |
| tristate "PCA953x, PCA955x, PCA957x, TCA64xx, and MAX7310 I/O ports" |
| depends on I2C |
| help |
| Say yes here to provide access to several register-oriented |
| SMBus I/O expanders, made mostly by NXP or TI. Compatible |
| models include: |
| |
| 4 bits: pca9536, pca9537 |
| |
| 8 bits: max7310, max7315, pca6107, pca9534, pca9538, pca9554, |
| pca9556, pca9557, pca9574, tca6408 |
| |
| 16 bits: max7312, max7313, pca9535, pca9539, pca9555, pca9575, |
| tca6416 |
| |
| config GPIO_PCA953X_IRQ |
| bool "Interrupt controller support for PCA953x" |
| depends on GPIO_PCA953X=y |
| help |
| Say yes here to enable the pca953x to be used as an interrupt |
| controller. It requires the driver to be built in the kernel. |
| |
| config GPIO_PCF857X |
| tristate "PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders" |
| depends on I2C |
| help |
| Say yes here to provide access to most "quasi-bidirectional" I2C |
| GPIO expanders used for additional digital outputs or inputs. |
| Most of these parts are from NXP, though TI is a second source for |
| some of them. Compatible models include: |
| |
| 8 bits: pcf8574, pcf8574a, pca8574, pca8574a, |
| pca9670, pca9672, pca9674, pca9674a, |
| max7328, max7329 |
| |
| 16 bits: pcf8575, pcf8575c, pca8575, |
| pca9671, pca9673, pca9675 |
| |
| Your board setup code will need to declare the expanders in |
| use, and assign numbers to the GPIOs they expose. Those GPIOs |
| can then be used from drivers and other kernel code, just like |
| other GPIOs, but only accessible from task contexts. |
| |
| This driver provides an in-kernel interface to those GPIOs using |
| platform-neutral GPIO calls. |
| |
| config GPIO_RC5T583 |
| bool "RICOH RC5T583 GPIO" |
| depends on MFD_RC5T583 |
| help |
| Select this option to enable GPIO driver for the Ricoh RC5T583 |
| chip family. |
| This driver provides the support for driving/reading the gpio pins |
| of RC5T583 device through standard gpio library. |
| |
| config GPIO_SX150X |
| bool "Semtech SX150x I2C GPIO expander" |
| depends on I2C=y |
| default n |
| help |
| Say yes here to provide support for Semtech SX150-series I2C |
| GPIO expanders. Compatible models include: |
| |
| 8 bits: sx1508q |
| 16 bits: sx1509q |
| |
| config GPIO_STMPE |
| bool "STMPE GPIOs" |
| depends on MFD_STMPE |
| help |
| This enables support for the GPIOs found on the STMPE I/O |
| Expanders. |
| |
| config GPIO_STP_XWAY |
| bool "XWAY STP GPIOs" |
| depends on SOC_XWAY |
| help |
| This enables support for the Serial To Parallel (STP) unit found on |
| XWAY SoC. The STP allows the SoC to drive a shift registers cascade, |
| that can be up to 24 bit. This peripheral is aimed at driving leds. |
| Some of the gpios/leds can be auto updated by the soc with dsl and |
| phy status. |
| |
| config GPIO_TC3589X |
| bool "TC3589X GPIOs" |
| depends on MFD_TC3589X |
| help |
| This enables support for the GPIOs found on the TC3589X |
| I/O Expander. |
| |
| config GPIO_TPS65912 |
| tristate "TI TPS65912 GPIO" |
| depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) |
| help |
| This driver supports TPS65912 gpio chip |
| |
| config GPIO_TWL4030 |
| tristate "TWL4030, TWL5030, and TPS659x0 GPIOs" |
| depends on TWL4030_CORE |
| help |
| Say yes here to access the GPIO signals of various multi-function |
| power management chips from Texas Instruments. |
| |
| config GPIO_WM831X |
| tristate "WM831x GPIOs" |
| depends on MFD_WM831X |
| help |
| Say yes here to access the GPIO signals of WM831x power management |
| chips from Wolfson Microelectronics. |
| |
| config GPIO_WM8350 |
| tristate "WM8350 GPIOs" |
| depends on MFD_WM8350 |
| help |
| Say yes here to access the GPIO signals of WM8350 power management |
| chips from Wolfson Microelectronics. |
| |
| config GPIO_WM8994 |
| tristate "WM8994 GPIOs" |
| depends on MFD_WM8994 |
| help |
| Say yes here to access the GPIO signals of WM8994 audio hub |
| CODECs from Wolfson Microelectronics. |
| |
| config GPIO_ADP5520 |
| tristate "GPIO Support for ADP5520 PMIC" |
| depends on PMIC_ADP5520 |
| help |
| This option enables support for on-chip GPIO found |
| on Analog Devices ADP5520 PMICs. |
| |
| config GPIO_ADP5588 |
| tristate "ADP5588 I2C GPIO expander" |
| depends on I2C |
| help |
| This option enables support for 18 GPIOs found |
| on Analog Devices ADP5588 GPIO Expanders. |
| |
| config GPIO_ADP5588_IRQ |
| bool "Interrupt controller support for ADP5588" |
| depends on GPIO_ADP5588=y |
| help |
| Say yes here to enable the adp5588 to be used as an interrupt |
| controller. It requires the driver to be built in the kernel. |
| |
| comment "PCI GPIO expanders:" |
| |
| config GPIO_CS5535 |
| tristate "AMD CS5535/CS5536 GPIO support" |
| depends on PCI && X86 && MFD_CS5535 |
| help |
| The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that |
| can be used for quite a number of things. The CS5535/6 is found on |
| AMD Geode and Lemote Yeeloong devices. |
| |
| If unsure, say N. |
| |
| config GPIO_BT8XX |
| tristate "BT8XX GPIO abuser" |
| depends on PCI && VIDEO_BT848=n |
| help |
| The BT8xx frame grabber chip has 24 GPIO pins than can be abused |
| as a cheap PCI GPIO card. |
| |
| This chip can be found on Miro, Hauppauge and STB TV-cards. |
| |
| The card needs to be physically altered for using it as a |
| GPIO card. For more information on how to build a GPIO card |
| from a BT8xx TV card, see the documentation file at |
| Documentation/bt8xxgpio.txt |
| |
| If unsure, say N. |
| |
| config GPIO_AMD8111 |
| tristate "AMD 8111 GPIO driver" |
| depends on PCI |
| help |
| The AMD 8111 south bridge contains 32 GPIO pins which can be used. |
| |
| Note, that usually system firmware/ACPI handles GPIO pins on their |
| own and users might easily break their systems with uncarefull usage |
| of this driver! |
| |
| If unsure, say N |
| |
| config GPIO_LANGWELL |
| bool "Intel Langwell/Penwell GPIO support" |
| depends on PCI && X86 |
| select IRQ_DOMAIN |
| help |
| Say Y here to support Intel Langwell/Penwell GPIO. |
| |
| config GPIO_PCH |
| tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO" |
| depends on PCI && X86 |
| select GENERIC_IRQ_CHIP |
| help |
| This driver is for PCH(Platform controller Hub) GPIO of Intel Topcliff |
| which is an IOH(Input/Output Hub) for x86 embedded processor. |
| This driver can access PCH GPIO device. |
| |
| This driver also can be used for LAPIS Semiconductor IOH(Input/ |
| Output Hub), ML7223 and ML7831. |
| ML7223 IOH is for MP(Media Phone) use. |
| ML7831 IOH is for general purpose use. |
| ML7223/ML7831 is companion chip for Intel Atom E6xx series. |
| ML7223/ML7831 is completely compatible for Intel EG20T PCH. |
| |
| config GPIO_ML_IOH |
| tristate "OKI SEMICONDUCTOR ML7213 IOH GPIO support" |
| depends on PCI |
| select GENERIC_IRQ_CHIP |
| help |
| ML7213 is companion chip for Intel Atom E6xx series. |
| This driver can be used for OKI SEMICONDUCTOR ML7213 IOH(Input/Output |
| Hub) which is for IVI(In-Vehicle Infotainment) use. |
| This driver can access the IOH's GPIO device. |
| |
| config GPIO_SODAVILLE |
| bool "Intel Sodaville GPIO support" |
| depends on X86 && PCI && OF |
| select GPIO_GENERIC |
| select GENERIC_IRQ_CHIP |
| help |
| Say Y here to support Intel Sodaville GPIO. |
| |
| config GPIO_TIMBERDALE |
| bool "Support for timberdale GPIO IP" |
| depends on MFD_TIMBERDALE && HAS_IOMEM |
| ---help--- |
| Add support for the GPIO IP in the timberdale FPGA. |
| |
| config GPIO_RDC321X |
| tristate "RDC R-321x GPIO support" |
| depends on PCI |
| select MFD_CORE |
| select MFD_RDC321X |
| help |
| Support for the RDC R321x SoC GPIOs over southbridge |
| PCI configuration space. |
| |
| comment "SPI GPIO expanders:" |
| |
| config GPIO_MAX7301 |
| tristate "Maxim MAX7301 GPIO expander" |
| depends on SPI_MASTER |
| select GPIO_MAX730X |
| help |
| GPIO driver for Maxim MAX7301 SPI-based GPIO expander. |
| |
| config GPIO_MCP23S08 |
| tristate "Microchip MCP23xxx I/O expander" |
| depends on SPI_MASTER || I2C |
| help |
| SPI/I2C driver for Microchip MCP23S08/MCP23S17/MCP23008/MCP23017 |
| I/O expanders. |
| This provides a GPIO interface supporting inputs and outputs. |
| |
| config GPIO_MC33880 |
| tristate "Freescale MC33880 high-side/low-side switch" |
| depends on SPI_MASTER |
| help |
| SPI driver for Freescale MC33880 high-side/low-side switch. |
| This provides GPIO interface supporting inputs and outputs. |
| |
| config GPIO_74X164 |
| tristate "74x164 serial-in/parallel-out 8-bits shift register" |
| depends on SPI_MASTER |
| help |
| Platform driver for 74x164 compatible serial-in/parallel-out |
| 8-outputs shift registers. This driver can be used to provide access |
| to more gpio outputs. |
| |
| comment "AC97 GPIO expanders:" |
| |
| config GPIO_UCB1400 |
| bool "Philips UCB1400 GPIO" |
| depends on UCB1400_CORE |
| help |
| This enables support for the Philips UCB1400 GPIO pins. |
| The UCB1400 is an AC97 audio codec. |
| |
| comment "MODULbus GPIO expanders:" |
| |
| config GPIO_JANZ_TTL |
| tristate "Janz VMOD-TTL Digital IO Module" |
| depends on MFD_JANZ_CMODIO |
| help |
| This enables support for the Janz VMOD-TTL Digital IO module. |
| This driver provides support for driving the pins in output |
| mode only. Input mode is not supported. |
| |
| config GPIO_AB8500 |
| bool "ST-Ericsson AB8500 Mixed Signal Circuit gpio functions" |
| depends on AB8500_CORE && BROKEN |
| help |
| Select this to enable the AB8500 IC GPIO driver |
| |
| config GPIO_TPS6586X |
| bool "TPS6586X GPIO" |
| depends on MFD_TPS6586X |
| help |
| Select this option to enable GPIO driver for the TPS6586X |
| chip family. |
| |
| config GPIO_TPS65910 |
| bool "TPS65910 GPIO" |
| depends on MFD_TPS65910 |
| help |
| Select this option to enable GPIO driver for the TPS65910 |
| chip family. |
| |
| config GPIO_MSIC |
| bool "Intel MSIC mixed signal gpio support" |
| depends on MFD_INTEL_MSIC |
| help |
| Enable support for GPIO on intel MSIC controllers found in |
| intel MID devices |
| |
| endif |