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Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
3 files changed, 110 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-designware.txt b/Documentation/devicetree/bindings/i2c/i2c-designware.txt new file mode 100644 index 00000000000..e42a2ee233e --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-designware.txt @@ -0,0 +1,22 @@ +* Synopsys DesignWare I2C + +Required properties : + + - compatible : should be "snps,designware-i2c" + - reg : Offset and length of the register set for the device + - interrupts : <IRQ> where IRQ is the interrupt number. + +Recommended properties : + + - clock-frequency : desired I2C bus clock frequency in Hz. + +Example : + + i2c@f0000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,designware-i2c"; + reg = <0xf0000 0x1000>; + interrupts = <11>; + clock-frequency = <400000>; + }; diff --git a/Documentation/devicetree/bindings/i2c/omap-i2c.txt b/Documentation/devicetree/bindings/i2c/omap-i2c.txt new file mode 100644 index 00000000000..56564aa4b44 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/omap-i2c.txt @@ -0,0 +1,30 @@ +I2C for OMAP platforms + +Required properties : +- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c" +- ti,hwmods : Must be "i2c<n>", n being the instance number (1-based) +- #address-cells = <1>; +- #size-cells = <0>; + +Recommended properties : +- clock-frequency : Desired I2C bus clock frequency in Hz. Otherwise + the default 100 kHz frequency will be used. + +Optional properties: +- Child nodes conforming to i2c bus binding + +Note: Current implementation will fetch base address, irq and dma +from omap hwmod data base during device registration. +Future plan is to migrate hwmod data base contents into device tree +blob so that, all the required data will be used from device tree dts +file. + +Examples : + +i2c1: i2c@0 { + compatible = "ti,omap3-i2c"; + #address-cells = <1>; + #size-cells = <0>; + ti,hwmods = "i2c1"; + clock-frequency = <400000>; +}; diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt new file mode 100644 index 00000000000..1a85f986961 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -0,0 +1,58 @@ +This is a list of trivial i2c devices that have simple device tree +bindings, consisting only of a compatible field, an address and +possibly an interrupt line. + +If a device needs more specific bindings, such as properties to +describe some aspect of it, there needs to be a specific binding +document for it just like any other devices. + + +Compatible Vendor / Chip +========== ============= +ad,ad7414 SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin +ad,adm9240 ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems +adi,adt7461 +/-1C TDM Extended Temp Range I.C +adt7461 +/-1C TDM Extended Temp Range I.C +at,24c08 i2c serial eeprom (24cxx) +atmel,24c02 i2c serial eeprom (24cxx) +catalyst,24c32 i2c serial eeprom +dallas,ds1307 64 x 8, Serial, I2C Real-Time Clock +dallas,ds1338 I2C RTC with 56-Byte NV RAM +dallas,ds1339 I2C Serial Real-Time Clock +dallas,ds1340 I2C RTC with Trickle Charger +dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output +dallas,ds1631 High-Precision Digital Thermometer +dallas,ds1682 Total-Elapsed-Time Recorder with Alarm +dallas,ds1775 Tiny Digital Thermometer and Thermostat +dallas,ds3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM +dallas,ds4510 CPU Supervisor with Nonvolatile Memory and Programmable I/O +dallas,ds75 Digital Thermometer and Thermostat +dialog,da9053 DA9053: flexible system level PMIC with multicore support +epson,rx8025 High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE +epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE +fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer +fsl,mc13892 MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51 +fsl,mma8450 MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer +fsl,mpr121 MPR121: Proximity Capacitive Touch Sensor Controller +fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec +maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator +maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs +maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface +mc,rv3029c2 Real Time Clock Module with I2C-Bus +national,lm75 I2C TEMP SENSOR +national,lm80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor +national,lm92 ±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface +nxp,pca9556 Octal SMBus and I2C registered interface +nxp,pca9557 8-bit I2C-bus and SMBus I/O port with reset +nxp,pcf8563 Real-time clock/calendar +ovti,ov5642 OV5642: Color CMOS QSXGA (5-megapixel) Image Sensor with OmniBSI and Embedded TrueFocus +pericom,pt7c4338 Real-time Clock Module +plx,pex8648 48-Lane, 12-Port PCI Express Gen 2 (5.0 GT/s) Switch +ramtron,24c64 i2c serial eeprom (24cxx) +ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC +samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) +st-micro,24c256 i2c serial eeprom (24cxx) +stm,m41t00 Serial Access TIMEKEEPER +stm,m41t62 Serial real-time clock (RTC) with alarm +stm,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS +ti,tsc2003 I2C Touch-Screen Controller |