# # Multifunction miscellaneous devices # if HAS_IOMEM menu "Multifunction device drivers" config MFD_CORE tristate select IRQ_DOMAIN default n config MFD_CS5535 tristate "AMD CS5535 and CS5536 southbridge core functions" select MFD_CORE depends on PCI && (X86_32 || (X86 && COMPILE_TEST)) ---help--- This is the core driver for CS5535/CS5536 MFD functions. This is necessary for using the board's GPIO and MFGPT functionality. config MFD_ALTERA_A10SR bool "Altera Arria10 DevKit System Resource chip" depends on ARCH_SOCFPGA && SPI_MASTER=y && OF select REGMAP_SPI select MFD_CORE help Support for the Altera Arria10 DevKit MAX5 System Resource chip using the SPI interface. This driver provides common support for accessing the external gpio extender (LEDs & buttons) and power supply alarms (hwmon). config MFD_ACT8945A tristate "Active-semi ACT8945A" select MFD_CORE select REGMAP_I2C depends on I2C && OF help Support for the ACT8945A PMIC from Active-semi. This device features three step-down DC/DC converters and four low-dropout linear regulators, along with a complete ActivePath battery charger. config MFD_SUN4I_GPADC tristate "Allwinner sunxi platforms' GPADC MFD driver" select MFD_CORE select REGMAP_MMIO select REGMAP_IRQ depends on ARCH_SUNXI || COMPILE_TEST depends on !TOUCHSCREEN_SUN4I help Select this to get support for Allwinner SoCs (A10, A13 and A31) ADC. This driver will only map the hardware interrupt and registers, you have to select individual drivers based on this MFD to be able to use the ADC or the thermal sensor. This will try to probe the ADC driver sun4i-gpadc-iio and the hwmon driver iio_hwmon. To compile this driver as a module, choose M here: the module will be called sun4i-gpadc. config MFD_AS3711 bool "AMS AS3711" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C=y help Support for the AS3711 PMIC from AMS config MFD_AS3722 tristate "ams AS3722 Power Management IC" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C=y && OF help The ams AS3722 is a compact system PMU suitable for mobile phones, tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down controllers, 11 LDOs, RTC, automatic battery, temperature and over current monitoring, GPIOs, ADC and a watchdog. config PMIC_ADP5520 bool "Analog Devices ADP5520/01 MFD PMIC Core Support" depends on I2C=y help Say yes here to add support for Analog Devices AD5520 and ADP5501, Multifunction Power Management IC. This includes the I2C driver and the core APIs _only_, you have to select individual components like LCD backlight, LEDs, GPIOs and Kepad under the corresponding menus. config MFD_AAT2870_CORE bool "AnalogicTech AAT2870" select MFD_CORE depends on I2C=y depends on GPIOLIB || COMPILE_TEST help If you say yes here you get support for the AAT2870. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_ATMEL_FLEXCOM tristate "Atmel Flexcom (Flexible Serial Communication Unit)" select MFD_CORE depends on OF help Select this to get support for Atmel Flexcom. This is a wrapper which embeds a SPI controller, a I2C controller and a USART. Only one function can be used at a time. The choice is done at boot time by the probe function of this MFD driver according to a device tree property. config MFD_ATMEL_HLCDC tristate "Atmel HLCDC (High-end LCD Controller)" select MFD_CORE select REGMAP_MMIO depends on OF help If you say yes here you get support for the HLCDC block. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_ATMEL_SMC bool select MFD_SYSCON config MFD_BCM590XX tristate "Broadcom BCM590xx PMUs" select MFD_CORE select REGMAP_I2C depends on I2C help Support for the BCM590xx PMUs from Broadcom config MFD_BD9571MWV tristate "ROHM BD9571MWV PMIC" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C help Support for the ROHM BD9571MWV PMIC, which contains single voltage regulator, voltage sampling units, GPIO block and watchdog block. This driver can also be built as a module. If so, the module will be called bd9571mwv. config MFD_AC100 tristate "X-Powers AC100" select MFD_CORE depends on SUNXI_RSB help If you say Y here you get support for the X-Powers AC100 audio codec IC. This driver include only the core APIs. You have to select individual components like codecs or RTC under the corresponding menus. config MFD_AXP20X tristate select MFD_CORE select REGMAP_IRQ config MFD_AXP20X_I2C tristate "X-Powers AXP series PMICs with I2C" select MFD_AXP20X select REGMAP_I2C depends on I2C help If you say Y here you get support for the X-Powers AXP series power management ICs (PMICs) controlled with I2C. This driver include only the core APIs. You have to select individual components like regulators or the PEK (Power Enable Key) under the corresponding menus. Note on x86 this provides an ACPI OpRegion, so this must be 'y' (builtin) and not a module, as the OpRegion must be available as soon as possible. For the same reason the I2C bus driver options I2C_DESIGNWARE_PLATFORM and I2C_DESIGNWARE_BAYTRAIL must be 'y' too. config MFD_AXP20X_RSB tristate "X-Powers AXP series PMICs with RSB" select MFD_AXP20X depends on SUNXI_RSB help If you say Y here you get support for the X-Powers AXP series power management ICs (PMICs) controlled with RSB. This driver include only the core APIs. You have to select individual components like regulators or the PEK (Power Enable Key) under the corresponding menus. config MFD_CROS_EC tristate "ChromeOS Embedded Controller" select MFD_CORE select CHROME_PLATFORMS select CROS_EC_PROTO depends on X86 || ARM || ARM64 || COMPILE_TEST help If you say Y here you get support for the ChromeOS Embedded Controller (EC) providing keyboard, battery and power services. You also need to enable the driver for the bus you are using. The protocol for talking to the EC is defined by the bus driver. config MFD_CROS_EC_I2C tristate "ChromeOS Embedded Controller (I2C)" depends on MFD_CROS_EC && I2C help If you say Y here, you get support for talking to the ChromeOS EC through an I2C bus. This uses a simple byte-level protocol with a checksum. Failing accesses will be retried three times to improve reliability. config MFD_CROS_EC_SPI tristate "ChromeOS Embedded Controller (SPI)" depends on MFD_CROS_EC && SPI ---help--- If you say Y here, you get support for talking to the ChromeOS EC through a SPI bus, using a byte-level protocol. Since the EC's response time cannot be guaranteed, we support ignoring 'pre-amble' bytes before the response actually starts. config MFD_ASIC3 bool "Compaq ASIC3" depends on GPIOLIB && ARM select MFD_CORE ---help--- This driver supports the ASIC3 multifunction chip found on many PDAs (mainly iPAQ and HTC based ones) config PMIC_DA903X bool "Dialog Semiconductor DA9030/DA9034 PMIC Support" depends on I2C=y help Say yes here to add support for Dialog Semiconductor DA9030 (a.k.a ARAVA) and DA9034 (a.k.a MICCO), these are Power Management IC usually found on PXA processors-based platforms. This includes the I2C driver and the core APIs _only_, you have to select individual components like LCD backlight, voltage regulators, LEDs and battery-charger under the corresponding menus. config PMIC_DA9052 bool select MFD_CORE config MFD_DA9052_SPI bool "Dialog Semiconductor DA9052/53 PMIC variants with SPI" select REGMAP_SPI select REGMAP_IRQ select PMIC_DA9052 depends on SPI_MASTER=y help Support for the Dialog Semiconductor DA9052 PMIC when controlled using SPI. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_DA9052_I2C bool "Dialog Semiconductor DA9052/53 PMIC variants with I2C" select REGMAP_I2C select REGMAP_IRQ select PMIC_DA9052 depends on I2C=y help Support for the Dialog Semiconductor DA9052 PMIC when controlled using I2C. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_DA9055 bool "Dialog Semiconductor DA9055 PMIC Support" select REGMAP_I2C select REGMAP_IRQ select MFD_CORE depends on I2C=y help Say yes here for support of Dialog Semiconductor DA9055. This is a Power Management IC. This driver provides common support for accessing the device as well as the I2C interface to the chip itself. Additional drivers must be enabled in order to use the functionality of the device. This driver can be built as a module. If built as a module it will be called "da9055" config MFD_DA9062 tristate "Dialog Semiconductor DA9062/61 PMIC Support" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C help Say yes here for support for the Dialog Semiconductor DA9061 and DA9062 PMICs. This includes the I2C driver and core APIs. Additional drivers must be enabled in order to use the functionality of the device. config MFD_DA9063 tristate "Dialog Semiconductor DA9063 PMIC Support" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C help Say yes here for support for the Dialog Semiconductor DA9063 PMIC. This includes the I2C driver and core APIs. Additional drivers must be enabled in order to use the functionality of the device. config MFD_DA9150 tristate "Dialog Semiconductor DA9150 Charger Fuel-Gauge chip" depends on I2C select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help This adds support for the DA9150 integrated charger and fuel-gauge chip. This driver provides common support for accessing the device. Additional drivers must be enabled in order to use the specific features of the device. config MFD_DLN2 tristate "Diolan DLN2 support" select MFD_CORE depends on USB help This adds support for Diolan USB-I2C/SPI/GPIO Master Adapter DLN-2. Additional drivers such as I2C_DLN2, GPIO_DLN2, etc. must be enabled in order to use the functionality of the device. config MFD_EXYNOS_LPASS tristate "Samsung Exynos SoC Low Power Audio Subsystem" depends on ARCH_EXYNOS || COMPILE_TEST select MFD_CORE select REGMAP_MMIO help Select this option to enable support for Samsung Exynos Low Power Audio Subsystem. config MFD_MC13XXX tristate depends on (SPI_MASTER || I2C) select MFD_CORE select REGMAP_IRQ help Enable support for the Freescale MC13783 and MC13892 PMICs. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_MC13XXX_SPI tristate "Freescale MC13783 and MC13892 SPI interface" depends on SPI_MASTER select REGMAP_SPI select MFD_MC13XXX help Select this if your MC13xxx is connected via an SPI bus. config MFD_MC13XXX_I2C tristate "Freescale MC13892 I2C interface" depends on I2C select REGMAP_I2C select MFD_MC13XXX help Select this if your MC13xxx is connected via an I2C bus. config MFD_MXS_LRADC tristate "Freescale i.MX23/i.MX28 LRADC" depends on ARCH_MXS || COMPILE_TEST select MFD_CORE select STMP_DEVICE help Say yes here to build support for the Low Resolution Analog-to-Digital Converter (LRADC) found on the i.MX23 and i.MX28 processors. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device: mxs-lradc-adc for ADC readings mxs-lradc-ts for touchscreen support This driver can also be built as a module. If so, the module will be called mxs-lradc. config MFD_MX25_TSADC tristate "Freescale i.MX25 integrated Touchscreen and ADC unit" select REGMAP_MMIO depends on (SOC_IMX25 && OF) || COMPILE_TEST help Enable support for the integrated Touchscreen and ADC unit of the i.MX25 processors. They consist of a conversion queue for general purpose ADC and a queue for Touchscreens. config MFD_HI6421_PMIC tristate "HiSilicon Hi6421 PMU/Codec IC" depends on OF select MFD_CORE select REGMAP_MMIO help Add support for HiSilicon Hi6421 PMIC. Hi6421 includes multi- functions, such as regulators, RTC, codec, Coulomb counter, etc. This driver includes core APIs _only_. You have to select individul components like voltage regulators under corresponding menus in order to enable them. We communicate with the Hi6421 via memory-mapped I/O. config MFD_HI655X_PMIC tristate "HiSilicon Hi655X series PMU/Codec IC" depends on ARCH_HISI || COMPILE_TEST depends on OF select MFD_CORE select REGMAP_MMIO select REGMAP_IRQ help Select this option to enable Hisilicon hi655x series pmic driver. config HTC_PASIC3 tristate "HTC PASIC3 LED/DS1WM chip support" select MFD_CORE help This core driver provides register access for the LED/DS1WM chips labeled "AIC2" and "AIC3", found on HTC Blueangel and HTC Magician devices, respectively. Actual functionality is handled by the leds-pasic3 and ds1wm drivers. config HTC_I2CPLD bool "HTC I2C PLD chip support" depends on I2C=y && GPIOLIB help If you say yes here you get support for the supposed CPLD found on omap850 HTC devices like the HTC Wizard and HTC Herald. This device provides input and output GPIOs through an I2C interface to one or more sub-chips. config MFD_INTEL_QUARK_I2C_GPIO tristate "Intel Quark MFD I2C GPIO" depends on PCI depends on X86 depends on COMMON_CLK select MFD_CORE help This MFD provides support for I2C and GPIO that exist only in a single PCI device. It splits the 2 IO devices to their respective IO driver. The GPIO exports a total amount of 8 interrupt-capable GPIOs. config LPC_ICH tristate "Intel ICH LPC" depends on PCI select MFD_CORE help The LPC bridge function of the Intel ICH provides support for many functional units. This driver provides needed support for other drivers to control these functions, currently GPIO and watchdog. config LPC_SCH tristate "Intel SCH LPC" depends on PCI select MFD_CORE help LPC bridge function of the Intel SCH provides support for System Management Bus and General Purpose I/O. config INTEL_SOC_PMIC bool "Support for Crystal Cove PMIC" depends on HAS_IOMEM && I2C=y && GPIOLIB && COMMON_CLK depends on X86 || COMPILE_TEST select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select I2C_DESIGNWARE_PLATFORM if ACPI help Select this option to enable support for Crystal Cove PMIC on some Intel SoC systems. The PMIC provides ADC, GPIO, thermal, charger and related power management functions on these systems. This option is a bool as it provides an ACPI OpRegion which must be available before any devices using it are probed. This option also causes the designware-i2c driver to be builtin for the same reason. config INTEL_SOC_PMIC_BXTWC tristate "Support for Intel Broxton Whiskey Cove PMIC" depends on INTEL_PMC_IPC select MFD_CORE select REGMAP_IRQ help Select this option to enable support for Whiskey Cove PMIC on Intel Broxton systems. The PMIC provides ADC, GPIO, thermal, charger and related power management functions on these systems. config INTEL_SOC_PMIC_CHTWC tristate "Support for Intel Cherry Trail Whiskey Cove PMIC" depends on ACPI && HAS_IOMEM && I2C=y && COMMON_CLK depends on X86 || COMPILE_TEST select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select I2C_DESIGNWARE_PLATFORM help Select this option to enable support for the Intel Cherry Trail Whiskey Cove PMIC found on some Intel Cherry Trail systems. This option is a bool as it provides an ACPI OpRegion which must be available before any devices using it are probed. This option also causes the designware-i2c driver to be builtin for the same reason. config MFD_INTEL_LPSS tristate select COMMON_CLK select MFD_CORE config MFD_INTEL_LPSS_ACPI tristate "Intel Low Power Subsystem support in ACPI mode" select MFD_INTEL_LPSS depends on X86 && ACPI help This driver supports Intel Low Power Subsystem (LPSS) devices such as I2C, SPI and HS-UART starting from Intel Sunrisepoint (Intel Skylake PCH) in ACPI mode. config MFD_INTEL_LPSS_PCI tristate "Intel Low Power Subsystem support in PCI mode" select MFD_INTEL_LPSS depends on X86 && PCI help This driver supports Intel Low Power Subsystem (LPSS) devices such as I2C, SPI and HS-UART starting from Intel Sunrisepoint (Intel Skylake PCH) in PCI mode. config MFD_INTEL_MSIC bool "Intel MSIC" depends on INTEL_SCU_IPC select MFD_CORE help Select this option to enable access to Intel MSIC (Avatele Passage) chip. This chip embeds audio, battery, GPIO, etc. devices used in Intel Medfield platforms. config MFD_IPAQ_MICRO bool "Atmel Micro ASIC (iPAQ h3100/h3600/h3700) Support" depends on SA1100_H3100 || SA1100_H3600 select MFD_CORE help Select this to get support for the Microcontroller found in the Compaq iPAQ handheld computers. This is an Atmel AT90LS8535 microcontroller flashed with a special iPAQ firmware using the custom protocol implemented in this driver. config MFD_JANZ_CMODIO tristate "Janz CMOD-IO PCI MODULbus Carrier Board" select MFD_CORE depends on PCI help This is the core driver for the Janz CMOD-IO PCI MODULbus carrier board. This device is a PCI to MODULbus bridge which may host many different types of MODULbus daughterboards, including CAN and GPIO controllers. config MFD_JZ4740_ADC bool "Janz JZ4740 ADC core" select MFD_CORE select GENERIC_IRQ_CHIP depends on MACH_JZ4740 help Say yes here if you want support for the ADC unit in the JZ4740 SoC. This driver is necessary for jz4740-battery and jz4740-hwmon driver. config MFD_KEMPLD tristate "Kontron module PLD device" select MFD_CORE help This is the core driver for the PLD (Programmable Logic Device) found on some Kontron ETX and COMexpress (ETXexpress) modules. The PLD device may provide functions like watchdog, GPIO, UART and I2C bus. The following modules are supported: * COMe-bBD# * COMe-bBL6 * COMe-bHL6 * COMe-bSL6 * COMe-bIP# * COMe-bKL6 * COMe-bPC2 (ETXexpress-PC) * COMe-bSC# (ETXexpress-SC T#) * COMe-cAL6 * COMe-cBL6 * COMe-cBT6 * COMe-cBW6 * COMe-cCT6 * COMe-cDC2 (microETXexpress-DC) * COMe-cHL6 * COMe-cKL6 * COMe-cPC2 (microETXexpress-PC) * COMe-cSL6 * COMe-mAL10 * COMe-mBT10 * COMe-mCT10 * COMe-mTT10 (nanoETXexpress-TT) * ETX-OH This driver can also be built as a module. If so, the module will be called kempld-core. config MFD_88PM800 tristate "Marvell 88PM800" depends on I2C select REGMAP_I2C select REGMAP_IRQ select MFD_CORE help This supports for Marvell 88PM800 Power Management IC. This includes the I2C driver and the core APIs _only_, you have to select individual components like voltage regulators, RTC and battery-charger under the corresponding menus. config MFD_88PM805 tristate "Marvell 88PM805" depends on I2C select REGMAP_I2C select REGMAP_IRQ select MFD_CORE help This supports for Marvell 88PM805 Power Management IC. This includes the I2C driver and the core APIs _only_, you have to select individual components like codec device, headset/Mic device under the corresponding menus. config MFD_88PM860X bool "Marvell 88PM8606/88PM8607" depends on I2C=y select REGMAP_I2C select MFD_CORE help This supports for Marvell 88PM8606/88PM8607 Power Management IC. This includes the I2C driver and the core APIs _only_, you have to select individual components like voltage regulators, RTC and battery-charger under the corresponding menus. config MFD_MAX14577 tristate "Maxim Semiconductor MAX14577/77836 MUIC + Charger Support" depends on I2C select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select IRQ_DOMAIN help Say yes here to add support for Maxim Semiconductor MAX14577 and MAX77836 Micro-USB ICs with battery charger. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX77620 bool "Maxim Semiconductor MAX77620 and MAX20024 PMIC Support" depends on I2C=y depends on OF || COMPILE_TEST select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select IRQ_DOMAIN help Say yes here to add support for Maxim Semiconductor MAX77620 and MAX20024 which are Power Management IC with General purpose pins, RTC, regulators, clock generator, watchdog etc. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX77686 tristate "Maxim Semiconductor MAX77686/802 PMIC Support" depends on I2C depends on OF || COMPILE_TEST select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select IRQ_DOMAIN help Say yes here to add support for Maxim Semiconductor MAX77686 and MAX77802 which are Power Management IC with an RTC on chip. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX77693 tristate "Maxim Semiconductor MAX77693 PMIC Support" depends on I2C select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help Say yes here to add support for Maxim Semiconductor MAX77693. This is a companion Power Management IC with Flash, Haptic, Charger, and MUIC(Micro USB Interface Controller) controls on chip. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX77843 bool "Maxim Semiconductor MAX77843 PMIC Support" depends on I2C=y select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help Say yes here to add support for Maxim Semiconductor MAX77843. This is companion Power Management IC with LEDs, Haptic, Charger, Fuel Gauge, MUIC(Micro USB Interface Controller) controls on chip. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX8907 tristate "Maxim Semiconductor MAX8907 PMIC Support" select MFD_CORE depends on I2C select REGMAP_I2C select REGMAP_IRQ help Say yes here to add support for Maxim Semiconductor MAX8907. This is a Power Management IC. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX8925 bool "Maxim Semiconductor MAX8925 PMIC Support" depends on I2C=y select MFD_CORE help Say yes here to add support for Maxim Semiconductor MAX8925. This is a Power Management IC. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX8997 bool "Maxim Semiconductor MAX8997/8966 PMIC Support" depends on I2C=y select MFD_CORE select IRQ_DOMAIN help Say yes here to add support for Maxim Semiconductor MAX8997/8966. This is a Power Management IC with RTC, Flash, Fuel Gauge, Haptic, MUIC controls on chip. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MAX8998 bool "Maxim Semiconductor MAX8998/National LP3974 PMIC Support" depends on I2C=y select MFD_CORE select IRQ_DOMAIN help Say yes here to add support for Maxim Semiconductor MAX8998 and National Semiconductor LP3974. This is a Power Management IC. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_MT6397 tristate "MediaTek MT6397 PMIC Support" select MFD_CORE select IRQ_DOMAIN help Say yes here to add support for MediaTek MT6397 PMIC. This is a Power Management IC. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. config MFD_MENF21BMC tristate "MEN 14F021P00 Board Management Controller Support" depends on I2C select MFD_CORE help Say yes here to add support for the MEN 14F021P00 BMC which is a Board Management Controller connected to the I2C bus. The device supports multiple sub-devices like LED, HWMON and WDT. This driver provides common support for accessing the devices; additional drivers must be enabled in order to use the functionality of the BMC device. This driver can also be built as a module. If so the module will be called menf21bmc. config EZX_PCAP bool "Motorola EZXPCAP Support" depends on SPI_MASTER help This enables the PCAP ASIC present on EZX Phones. This is needed for MMC, TouchScreen, Sound, USB, etc.. config MFD_CPCAP tristate "Support for Motorola CPCAP" depends on SPI depends on OF || COMPILE_TEST select REGMAP_SPI select REGMAP_IRQ help Say yes here if you want to include driver for CPCAP. It is used on many Motorola phones and tablets as a PMIC. At least Motorola Droid 4 is known to use CPCAP. config MFD_VIPERBOARD tristate "Nano River Technologies Viperboard" select MFD_CORE depends on USB default n help Say yes here if you want support for Nano River Technologies Viperboard. There are mfd cell drivers available for i2c master, adc and both gpios found on the board. The spi part does not yet have a driver. You need to select the mfd cell drivers separately. The drivers do not support all features the board exposes. config MFD_RETU tristate "Nokia Retu and Tahvo multi-function device" select MFD_CORE depends on I2C select REGMAP_IRQ help Retu and Tahvo are a multi-function devices found on Nokia Internet Tablets (770, N800 and N810). config MFD_PCF50633 tristate "NXP PCF50633" depends on I2C select REGMAP_I2C help Say yes here if you have NXP PCF50633 chip on your board. This core driver provides register access and IRQ handling facilities, and registers devices for the various functions so that function-specific drivers can bind to them. config PCF50633_ADC tristate "NXP PCF50633 ADC" depends on MFD_PCF50633 help Say yes here if you want to include support for ADC in the NXP PCF50633 chip. config PCF50633_GPIO tristate "NXP PCF50633 GPIO" depends on MFD_PCF50633 help Say yes here if you want to include support GPIO for pins on the PCF50633 chip. config UCB1400_CORE tristate "Philips UCB1400 Core driver" depends on AC97_BUS depends on GPIOLIB help This enables support for the Philips UCB1400 core functions. The UCB1400 is an AC97 audio codec. To compile this driver as a module, choose M here: the module will be called ucb1400_core. config MFD_PM8XXX tristate "Qualcomm PM8xxx PMIC chips driver" depends on (ARM || HEXAGON) select IRQ_DOMAIN select MFD_CORE select REGMAP help If you say yes to this option, support will be included for the built-in PM8xxx PMIC chips. This is required if your board has a PM8xxx and uses its features, such as: MPPs, GPIOs, regulators, interrupts, and PWM. Say M here if you want to include support for PM8xxx chips as a module. This will build a module called "pm8xxx-core". config MFD_QCOM_RPM tristate "Qualcomm Resource Power Manager (RPM)" depends on ARCH_QCOM && OF help If you say yes to this option, support will be included for the Resource Power Manager system found in the Qualcomm 8660, 8960 and 8064 based devices. This is required to access many regulators, clocks and bus frequencies controlled by the RPM on these devices. Say M here if you want to include support for the Qualcomm RPM as a module. This will build a module called "qcom_rpm". config MFD_SPMI_PMIC tristate "Qualcomm SPMI PMICs" depends on ARCH_QCOM || COMPILE_TEST depends on OF depends on SPMI select REGMAP_SPMI help This enables support for the Qualcomm SPMI PMICs. These PMICs are currently used with the Snapdragon 800 series of SoCs. Note, that this will only be useful paired with descriptions of the independent functions as children nodes in the device tree. Say M here if you want to include support for the SPMI PMIC series as a module. The module will be called "qcom-spmi-pmic". config MFD_RDC321X tristate "RDC R-321x southbridge" select MFD_CORE depends on PCI help Say yes here if you want to have support for the RDC R-321x SoC southbridge which provides access to GPIOs and Watchdog using the southbridge PCI device configuration space. config MFD_RTSX_PCI tristate "Realtek PCI-E card reader" depends on PCI select MFD_CORE help This supports for Realtek PCI-Express card reader including rts5209, rts5227, rts522A, rts5229, rts5249, rts524A, rts525A, rtl8411, etc. Realtek card reader supports access to many types of memory cards, such as Memory Stick, Memory Stick Pro, Secure Digital and MultiMediaCard. config MFD_RT5033 tristate "Richtek RT5033 Power Management IC" depends on I2C select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help This driver provides for the Richtek RT5033 Power Management IC, which includes the I2C driver and the Core APIs. This driver provides common support for accessing the device. The device supports multiple sub-devices like charger, fuel gauge, flash LED, current source, LDO and Buck. config MFD_RTSX_USB tristate "Realtek USB card reader" depends on USB select MFD_CORE help Select this option to get support for Realtek USB 2.0 card readers including RTS5129, RTS5139, RTS5179 and RTS5170. Realtek card reader supports access to many types of memory cards, such as Memory Stick Pro, Secure Digital and MultiMediaCard. config MFD_RC5T583 bool "Ricoh RC5T583 Power Management system device" depends on I2C=y select MFD_CORE select REGMAP_I2C help Select this option to get support for the RICOH583 Power Management system device. This driver provides common support for accessing the device through i2c interface. The device supports multiple sub-devices like GPIO, interrupts, RTC, LDO and DCDC regulators, onkey. Additional drivers must be enabled in order to use the different functionality of the device. config MFD_RK808 tristate "Rockchip RK805/RK808/RK818 Power Management Chip" depends on I2C && OF select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help If you say yes here you get support for the RK805, RK808 and RK818 Power Management chips. This driver provides common support for accessing the device through I2C interface. The device supports multiple sub-devices including interrupts, RTC, LDO & DCDC regulators, and onkey. config MFD_RN5T618 tristate "Ricoh RN5T567/618 PMIC" depends on I2C depends on OF select MFD_CORE select REGMAP_I2C help Say yes here to add support for the Ricoh RN5T567, RN5T618, RC5T619 PMIC. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_SEC_CORE bool "SAMSUNG Electronics PMIC Series Support" depends on I2C=y select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help Support for the Samsung Electronics MFD series. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device config MFD_SI476X_CORE tristate "Silicon Laboratories 4761/64/68 AM/FM radio." depends on I2C select MFD_CORE select REGMAP_I2C help This is the core driver for the SI476x series of AM/FM radio. This MFD driver connects the radio-si476x V4L2 module and the si476x audio codec. To compile this driver as a module, choose M here: the module will be called si476x-core. config MFD_SM501 tristate "Silicon Motion SM501" ---help--- This is the core driver for the Silicon Motion SM501 multimedia companion chip. This device is a multifunction device which may provide numerous interfaces including USB host controller, USB gadget, asynchronous serial ports, audio functions, and a dual display video interface. The device may be connected by PCI or local bus with varying functions enabled. config MFD_SM501_GPIO bool "Export GPIO via GPIO layer" depends on MFD_SM501 && GPIOLIB ---help--- This option uses the gpio library layer to export the 64 GPIO lines on the SM501. The platform data is used to supply the base number for the first GPIO line to register. config MFD_SKY81452 tristate "Skyworks Solutions SKY81452" select MFD_CORE select REGMAP_I2C depends on I2C help This is the core driver for the Skyworks SKY81452 backlight and voltage regulator device. This driver can also be built as a module. If so, the module will be called sky81452. config MFD_SMSC bool "SMSC ECE1099 series chips" depends on I2C=y select MFD_CORE select REGMAP_I2C help If you say yes here you get support for the ece1099 chips from SMSC. To compile this driver as a module, choose M here: the module will be called smsc. config ABX500_CORE bool "ST-Ericsson ABX500 Mixed Signal Circuit register functions" default y if ARCH_U300 || ARCH_U8500 || COMPILE_TEST help Say yes here if you have the ABX500 Mixed Signal IC family chips. This core driver expose register access functions. Functionality specific drivers using these functions can remain unchanged when IC changes. Binding of the functions to actual register access is done by the IC core driver. config AB3100_CORE bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions" depends on I2C=y && ABX500_CORE select MFD_CORE default y if ARCH_U300 help Select this to enable the AB3100 Mixed Signal IC core functionality. This connects to a AB3100 on the I2C bus and expose a number of symbols needed for dependent devices to read and write registers and subscribe to events from this multi-functional IC. This is needed to use other features of the AB3100 such as battery-backed RTC, charging control, LEDs, vibrator, system power and temperature, power management and ALSA sound. config AB3100_OTP tristate "ST-Ericsson AB3100 OTP functions" depends on AB3100_CORE default y if AB3100_CORE help Select this to enable the AB3100 Mixed Signal IC OTP (one-time programmable memory) support. This exposes a sysfs file to read out OTP values. config AB8500_CORE bool "ST-Ericsson AB8500 Mixed Signal Power Management chip" depends on ABX500_CORE && MFD_DB8500_PRCMU select POWER_SUPPLY select MFD_CORE select IRQ_DOMAIN help Select this option to enable access to AB8500 power management chip. This connects to U8500 either on the SSP/SPI bus (deprecated since hardware version v1.0) or the I2C bus via PRCMU. It also adds the irq_chip parts for handling the Mixed Signal chip events. This chip embeds various other multimedia funtionalities as well. config AB8500_DEBUG bool "Enable debug info via debugfs" depends on AB8500_GPADC && DEBUG_FS default y if DEBUG_FS help Select this option if you want debug information using the debug filesystem, debugfs. config AB8500_GPADC bool "ST-Ericsson AB8500 GPADC driver" depends on AB8500_CORE && REGULATOR_AB8500 default y help AB8500 GPADC driver used to convert Acc and battery/ac/usb voltage config MFD_DB8500_PRCMU bool "ST-Ericsson DB8500 Power Reset Control Management Unit" depends on UX500_SOC_DB8500 select MFD_CORE help Select this option to enable support for the DB8500 Power Reset and Control Management Unit. This is basically an autonomous system controller running an XP70 microprocessor, which is accessed through a register map. config MFD_STMPE bool "STMicroelectronics STMPE" depends on (I2C=y || SPI_MASTER=y) depends on OF select MFD_CORE help Support for the STMPE family of I/O Expanders from STMicroelectronics. Currently supported devices are: STMPE811: GPIO, Touchscreen STMPE1601: GPIO, Keypad STMPE1801: GPIO, Keypad STMPE2401: GPIO, Keypad STMPE2403: GPIO, Keypad This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. Currently available sub drivers are: GPIO: stmpe-gpio Keypad: stmpe-keypad Touchscreen: stmpe-ts menu "STMicroelectronics STMPE Interface Drivers" depends on MFD_STMPE config STMPE_I2C bool "STMicroelectronics STMPE I2C Interface" depends on I2C=y default y help This is used to enable I2C interface of STMPE config STMPE_SPI bool "STMicroelectronics STMPE SPI Interface" depends on SPI_MASTER help This is used to enable SPI interface of STMPE endmenu config MFD_STA2X11 bool "STMicroelectronics STA2X11" depends on STA2X11 select MFD_CORE select REGMAP_MMIO config MFD_SUN6I_PRCM bool "Allwinner A31 PRCM controller" depends on ARCH_SUNXI select MFD_CORE help Support for the PRCM (Power/Reset/Clock Management) unit available in A31 SoC. config MFD_SYSCON bool "System Controller Register R/W Based on Regmap" select REGMAP_MMIO help Select this option to enable accessing system control registers via regmap. config MFD_DAVINCI_VOICECODEC tristate select MFD_CORE select REGMAP_MMIO config MFD_TI_AM335X_TSCADC tristate "TI ADC / Touch Screen chip support" select MFD_CORE select REGMAP select REGMAP_MMIO help If you say yes here you get support for Texas Instruments series of Touch Screen /ADC chips. To compile this driver as a module, choose M here: the module will be called ti_am335x_tscadc. config MFD_DM355EVM_MSP bool "TI DaVinci DM355 EVM microcontroller" depends on I2C=y && MACH_DAVINCI_DM355_EVM help This driver supports the MSP430 microcontroller used on these boards. MSP430 firmware manages resets and power sequencing, inputs from buttons and the IR remote, LEDs, an RTC, and more. config MFD_LP3943 tristate "TI/National Semiconductor LP3943 MFD Driver" depends on I2C select MFD_CORE select REGMAP_I2C help Support for the TI/National Semiconductor LP3943. This driver consists of GPIO and PWM drivers. With these functionalities, it can be used for LED string control or general usage such like a GPIO controller and a PWM controller. config MFD_LP8788 bool "TI LP8788 Power Management Unit Driver" depends on I2C=y select MFD_CORE select REGMAP_I2C select IRQ_DOMAIN help TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight driver and current sinks. config MFD_TI_LMU tristate "TI Lighting Management Unit driver" depends on I2C select MFD_CORE select REGMAP_I2C help Say yes here to enable support for TI LMU chips. TI LMU MFD supports LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697. It consists of backlight, LED and regulator driver. It provides consistent device controls for lighting functions. config MFD_OMAP_USB_HOST bool "TI OMAP USBHS core and TLL driver" depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3 default y help This is the core driver for the OAMP EHCI and OHCI drivers. This MFD driver does the required setup functionalities for OMAP USB Host drivers. config MFD_PALMAS bool "TI Palmas series chips" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C=y help If you say yes here you get support for the Palmas series of PMIC chips from Texas Instruments. config TPS6105X tristate "TI TPS61050/61052 Boost Converters" depends on I2C select REGMAP_I2C select REGULATOR select MFD_CORE select REGULATOR_FIXED_VOLTAGE help This option enables a driver for the TP61050/TPS61052 high-power "white LED driver". This boost converter is sometimes used for other things than white LEDs, and also contains a GPIO pin. config TPS65010 tristate "TI TPS6501x Power Management chips" depends on I2C && GPIOLIB default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK help If you say yes here you get support for the TPS6501x series of Power Management chips. These include voltage regulators, lithium ion/polymer battery charging, and other features that are often used in portable devices like cell phones and cameras. This driver can also be built as a module. If so, the module will be called tps65010. config TPS6507X tristate "TI TPS6507x Power Management / Touch Screen chips" select MFD_CORE depends on I2C help If you say yes here you get support for the TPS6507x series of Power Management / Touch Screen chips. These include voltage regulators, lithium ion/polymer battery charging, touch screen and other features that are often used in portable devices. This driver can also be built as a module. If so, the module will be called tps6507x. config MFD_TPS65086 tristate "TI TPS65086 Power Management Integrated Chips (PMICs)" select MFD_CORE select REGMAP select REGMAP_IRQ select REGMAP_I2C depends on I2C help If you say yes here you get support for the TPS65086 series of Power Management chips. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config TPS65911_COMPARATOR tristate config MFD_TPS65090 bool "TI TPS65090 Power Management chips" depends on I2C=y select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help If you say yes here you get support for the TPS65090 series of Power Management chips. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_TPS65217 tristate "TI TPS65217 Power Management / White LED chips" depends on I2C select MFD_CORE select REGMAP_I2C select IRQ_DOMAIN help If you say yes here you get support for the TPS65217 series of Power Management / White LED chips. These include voltage regulators, lithium ion/polymer battery charger, wled and other features that are often used in portable devices. This driver can also be built as a module. If so, the module will be called tps65217. config MFD_TPS68470 bool "TI TPS68470 Power Management / LED chips" depends on ACPI && I2C=y select MFD_CORE select REGMAP_I2C select I2C_DESIGNWARE_PLATFORM help If you say yes here you get support for the TPS68470 series of Power Management / LED chips. These include voltage regulators, LEDs and other features that are often used in portable devices. This option is a bool as it provides an ACPI operation region, which must be available before any of the devices using this are probed. This option also configures the designware-i2c driver to be built-in, for the same reason. config MFD_TI_LP873X tristate "TI LP873X Power Management IC" depends on I2C select MFD_CORE select REGMAP_I2C help If you say yes here then you get support for the LP873X series of Power Management Integrated Circuits (PMIC). These include voltage regulators, thermal protection, configurable General Purpose Outputs (GPO) that are used in portable devices. This driver can also be built as a module. If so, the module will be called lp873x. config MFD_TI_LP87565 tristate "TI LP87565 Power Management IC" depends on I2C && OF select MFD_CORE select REGMAP_I2C help If you say yes here then you get support for the LP87565 series of Power Management Integrated Circuits (PMIC). These include voltage regulators, thermal protection, configurable General Purpose Outputs (GPO) that are used in portable devices. This driver can also be built as a module. If so, the module will be called lp87565. config MFD_TPS65218 tristate "TI TPS65218 Power Management chips" depends on I2C select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help If you say yes here you get support for the TPS65218 series of Power Management chips. These include voltage regulators, gpio and other features that are often used in portable devices. Only regulator component is currently supported. This driver can also be built as a module. If so, the module will be called tps65218. config MFD_TPS6586X bool "TI TPS6586x Power Management chips" depends on I2C=y select MFD_CORE select REGMAP_I2C help If you say yes here you get support for the TPS6586X series of Power Management chips. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. This driver can also be built as a module. If so, the module will be called tps6586x. config MFD_TPS65910 bool "TI TPS65910 Power Management chip" depends on I2C=y depends on GPIOLIB || COMPILE_TEST select MFD_CORE select REGMAP_I2C select REGMAP_IRQ select IRQ_DOMAIN help if you say yes here you get support for the TPS65910 series of Power Management chips. config MFD_TPS65912 tristate select MFD_CORE select REGMAP select REGMAP_IRQ config MFD_TPS65912_I2C tristate "TI TPS65912 Power Management chip with I2C" select MFD_TPS65912 select REGMAP_I2C depends on I2C help If you say yes here you get support for the TPS65912 series of PM chips with I2C interface. config MFD_TPS65912_SPI tristate "TI TPS65912 Power Management chip with SPI" select MFD_TPS65912 select REGMAP_SPI depends on SPI_MASTER help If you say yes here you get support for the TPS65912 series of PM chips with SPI interface. config MFD_TPS80031 bool "TI TPS80031/TPS80032 Power Management chips" depends on I2C=y select MFD_CORE select REGMAP_I2C select REGMAP_IRQ help If you say yes here you get support for the Texas Instruments TPS80031/ TPS80032 Fully Integrated Power Management with Power Path and Battery Charger. The device provides five configurable step-down converters, 11 general purpose LDOs, USB OTG Module, ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with Power Path from USB, 32K clock generator. config TWL4030_CORE bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support" depends on I2C=y select IRQ_DOMAIN select REGMAP_I2C help Say yes here if you have TWL4030 / TWL6030 family chip on your board. This core driver provides register access and IRQ handling facilities, and registers devices for the various functions so that function-specific drivers can bind to them. These multi-function chips are found on many OMAP2 and OMAP3 boards, providing power management, RTC, GPIO, keypad, a high speed USB OTG transceiver, an audio codec (on most versions) and many other features. config TWL4030_POWER bool "TI TWL4030 power resources" depends on TWL4030_CORE && ARM help Say yes here if you want to use the power resources on the TWL4030 family chips. Most of these resources are regulators, which have a separate driver; some are control signals, such as clock request handshaking. This driver uses board-specific data to initialize the resources and load scripts controlling which resources are switched off/on or reset when a sleep, wakeup or warm reset event occurs. config MFD_TWL4030_AUDIO bool "TI TWL4030 Audio" depends on TWL4030_CORE select MFD_CORE default n config TWL6040_CORE bool "TI TWL6040 audio codec" depends on I2C=y select MFD_CORE select REGMAP_I2C select REGMAP_IRQ default n help Say yes here if you want support for Texas Instruments TWL6040 audio codec. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device (audio, vibra). config MENELAUS bool "TI TWL92330/Menelaus PM chip" depends on I2C=y && ARCH_OMAP2 help If you say yes here you get support for the Texas Instruments TWL92330/Menelaus Power Management chip. This include voltage regulators, Dual slot memory card transceivers, real-time clock and other features that are often used in portable devices like cell phones and PDAs. config MFD_WL1273_CORE tristate "TI WL1273 FM radio" depends on I2C select MFD_CORE default n help This is the core driver for the TI WL1273 FM radio. This MFD driver connects the radio-wl1273 V4L2 module and the wl1273 audio codec. config MFD_LM3533 tristate "TI/National Semiconductor LM3533 Lighting Power chip" depends on I2C select MFD_CORE select REGMAP_I2C help Say yes here to enable support for National Semiconductor / TI LM3533 Lighting Power chips. This driver provides common support for accessing the device; additional drivers must be enabled in order to use the LED, backlight or ambient-light-sensor functionality of the device. config MFD_TIMBERDALE tristate "Timberdale FPGA" select MFD_CORE depends on PCI && GPIOLIB && (X86_32 || COMPILE_TEST) ---help--- This is the core driver for the timberdale FPGA. This device is a multifunction device which exposes numerous platform devices. The timberdale FPGA can be found on the Intel Atom development board for in-vehicle infontainment, called Russellville. config MFD_TC3589X bool "Toshiba TC35892 and variants" depends on I2C=y depends on OF select MFD_CORE help Support for the Toshiba TC35892 and variants I/O Expander. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_TMIO bool default n config MFD_T7L66XB bool "Toshiba T7L66XB" depends on ARM && HAVE_CLK select MFD_CORE select MFD_TMIO help Support for Toshiba Mobile IO Controller T7L66XB config MFD_TC6387XB bool "Toshiba TC6387XB" depends on ARM && HAVE_CLK select MFD_CORE select MFD_TMIO help Support for Toshiba Mobile IO Controller TC6387XB config MFD_TC6393XB bool "Toshiba TC6393XB" depends on ARM && HAVE_CLK select GPIOLIB select MFD_CORE select MFD_TMIO help Support for Toshiba Mobile IO Controller TC6393XB config MFD_VX855 tristate "VIA VX855/VX875 integrated south bridge" depends on PCI select MFD_CORE help Say yes here to enable support for various functions of the VIA VX855/VX875 south bridge. You will need to enable the vx855_spi and/or vx855_gpio drivers for this to do anything useful. config MFD_ARIZONA select REGMAP select REGMAP_IRQ select MFD_CORE bool config MFD_ARIZONA_I2C tristate "Cirrus Logic/Wolfson Microelectronics Arizona platform with I2C" select MFD_ARIZONA select REGMAP_I2C depends on I2C help Support for the Cirrus Logic/Wolfson Microelectronics Arizona platform audio SoC core functionality controlled via I2C. config MFD_ARIZONA_SPI tristate "Cirrus Logic/Wolfson Microelectronics Arizona platform with SPI" select MFD_ARIZONA select REGMAP_SPI depends on SPI_MASTER help Support for the Cirrus Logic/Wolfson Microelectronics Arizona platform audio SoC core functionality controlled via SPI. config MFD_CS47L24 bool "Cirrus Logic CS47L24 and WM1831" depends on MFD_ARIZONA help Support for Cirrus Logic CS47L24 and WM1831 low power audio SoC config MFD_WM5102 bool "Wolfson Microelectronics WM5102" depends on MFD_ARIZONA help Support for Wolfson Microelectronics WM5102 low power audio SoC config MFD_WM5110 bool "Wolfson Microelectronics WM5110 and WM8280/WM8281" depends on MFD_ARIZONA help Support for Wolfson Microelectronics WM5110 and WM8280/WM8281 low power audio SoC config MFD_WM8997 bool "Wolfson Microelectronics WM8997" depends on MFD_ARIZONA help Support for Wolfson Microelectronics WM8997 low power audio SoC config MFD_WM8998 bool "Wolfson Microelectronics WM8998" depends on MFD_ARIZONA help Support for Wolfson Microelectronics WM8998 low power audio SoC config MFD_WM8400 bool "Wolfson Microelectronics WM8400" select MFD_CORE depends on I2C=y select REGMAP_I2C help Support for the Wolfson Microelecronics WM8400 PMIC and audio CODEC. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_WM831X bool config MFD_WM831X_I2C bool "Wolfson Microelectronics WM831x/2x PMICs with I2C" select MFD_CORE select MFD_WM831X select REGMAP_I2C select IRQ_DOMAIN depends on I2C=y help Support for the Wolfson Microelecronics WM831x and WM832x PMICs when controlled using I2C. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_WM831X_SPI bool "Wolfson Microelectronics WM831x/2x PMICs with SPI" select MFD_CORE select MFD_WM831X select REGMAP_SPI select IRQ_DOMAIN depends on SPI_MASTER help Support for the Wolfson Microelecronics WM831x and WM832x PMICs when controlled using SPI. This driver provides common support for accessing the device, additional drivers must be enabled in order to use the functionality of the device. config MFD_WM8350 bool config MFD_WM8350_I2C bool "Wolfson Microelectronics WM8350 with I2C" select MFD_WM8350 select REGMAP_I2C depends on I2C=y help The WM8350 is an integrated audio and power management subsystem with watchdog and RTC functionality for embedded systems. This option enables core support for the WM8350 with I2C as the control interface. Additional options must be selected to enable support for the functionality of the chip. config MFD_WM8994 tristate "Wolfson Microelectronics WM8994" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ depends on I2C help The WM8994 is a highly integrated hi-fi CODEC designed for smartphone applications. As well as audio functionality it has on board GPIO and regulator functionality which is supported via the relevant subsystems. This driver provides core support for the WM8994, in order to use the actual functionaltiy of the device other drivers must be enabled. config MFD_STW481X tristate "Support for ST Microelectronics STw481x" depends on I2C && (ARCH_NOMADIK || COMPILE_TEST) select REGMAP_I2C select MFD_CORE help Select this option to enable the STw481x chip driver used in various ST Microelectronics and ST-Ericsson embedded Nomadik series. config MFD_STM32_LPTIMER tristate "Support for STM32 Low-Power Timer" depends on (ARCH_STM32 && OF) || COMPILE_TEST select MFD_CORE select REGMAP select REGMAP_MMIO help Select this option to enable STM32 Low-Power Timer driver used for PWM, IIO Trigger, IIO Encoder and Counter. Shared resources are also dealt with here. To compile this driver as a module, choose M here: the module will be called stm32-lptimer. config MFD_STM32_TIMERS tristate "Support for STM32 Timers" depends on (ARCH_STM32 && OF) || COMPILE_TEST select MFD_CORE select REGMAP select REGMAP_MMIO help Select this option to enable STM32 timers driver used for PWM and IIO Timer. This driver allow to share the registers between the others drivers. menu "Multimedia Capabilities Port drivers" depends on ARCH_SA1100 config MCP tristate # Interface drivers config MCP_SA11X0 tristate "Support SA11x0 MCP interface" depends on ARCH_SA1100 select MCP # Chip drivers config MCP_UCB1200 tristate "Support for UCB1200 / UCB1300" depends on MCP_SA11X0 select MCP config MCP_UCB1200_TS tristate "Touchscreen interface support" depends on MCP_UCB1200 && INPUT endmenu config MFD_VEXPRESS_SYSREG bool "Versatile Express System Registers" depends on VEXPRESS_CONFIG && GPIOLIB && !ARCH_USES_GETTIMEOFFSET default y select CLKSRC_MMIO select GPIO_GENERIC_PLATFORM select MFD_CORE select MFD_SYSCON help System Registers are the platform configuration block on the ARM Ltd. Versatile Express board. endmenu endif