From 560746eb79d3124a278452c8dd968682b521cc82 Mon Sep 17 00:00:00 2001 From: Tony Prisk Date: Sat, 15 Jun 2013 09:52:16 +1200 Subject: i2c: vt8500: Add support for I2C bus on Wondermedia SoCs This patch adds support for the I2C bus controllers found on Wondermedia 8xxx-series SoCs. Only master-mode is supported. Signed-off-by: Tony Prisk [wsa: fixed one macro to shift 8 instead of 16] Signed-off-by: Wolfram Sang --- .../devicetree/bindings/i2c/i2c-vt8500.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-vt8500.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-vt8500.txt b/Documentation/devicetree/bindings/i2c/i2c-vt8500.txt new file mode 100644 index 000000000000..94a425eaa6c7 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-vt8500.txt @@ -0,0 +1,24 @@ +* Wondermedia I2C Controller + +Required properties : + + - compatible : should be "wm,wm8505-i2c" + - reg : Offset and length of the register set for the device + - interrupts : where IRQ is the interrupt number + - clocks : phandle to the I2C clock source + +Optional properties : + + - clock-frequency : desired I2C bus clock frequency in Hz. + Valid values are 100000 and 400000. + Default to 100000 if not specified, or invalid value. + +Example : + + i2c_0: i2c@d8280000 { + compatible = "wm,wm8505-i2c"; + reg = <0xd8280000 0x1000>; + interrupts = <19>; + clocks = <&clki2c0>; + clock-frequency = <400000>; + }; -- cgit v1.2.3