From 08678b850cd0c49cc49c7fed0c93f720f85368e8 Mon Sep 17 00:00:00 2001 From: Anders Berg Date: Fri, 3 Oct 2014 13:08:02 +0200 Subject: i2c: axxia: Add I2C driver for AXM55xx Add I2C bus driver for the controller found in the LSI Axxia family SoCs. The driver implements 10-bit addressing and SMBus transfer modes via emulation (including SMBus block data read). Signed-off-by: Anders Berg Signed-off-by: Wolfram Sang --- .../devicetree/bindings/i2c/i2c-axxia.txt | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-axxia.txt (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/i2c/i2c-axxia.txt b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt new file mode 100644 index 000000000000..2296d782b4c2 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt @@ -0,0 +1,30 @@ +LSI Axxia I2C + +Required properties : +- compatible : Must be "lsi,api2c" +- reg : Offset and length of the register set for the device +- interrupts : the interrupt specifier +- #address-cells : Must be <1>; +- #size-cells : Must be <0>; +- clock-names : Must contain "i2c". +- clocks: Must contain an entry for each name in clock-names. See the common + clock bindings. + +Optional properties : +- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified, + the default 100 kHz frequency will be used. As only Normal and Fast modes + are supported, possible values are 100000 and 400000. + +Example : + +i2c@02010084000 { + compatible = "lsi,api2c"; + device_type = "i2c"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x20 0x10084000 0x00 0x1000>; + interrupts = <0 19 4>; + clocks = <&clk_per>; + clock-names = "i2c"; + clock-frequency = <400000>; +}; -- cgit v1.2.3