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| author | Tony Prisk <linux@prisktech.co.nz> | 2013-06-15 09:52:16 +1200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2013-06-15 13:37:08 +0200 |
| commit | 560746eb79d3124a278452c8dd968682b521cc82 (patch) | |
| tree | d27afb9ec1cd900f41bc645001cc3471cf95610e /Documentation | |
| parent | 38d7fadef4973bb94e36897fcb6bb6a12fdd10c9 (diff) | |
| download | linux-560746eb79d3124a278452c8dd968682b521cc82.tar.gz linux-560746eb79d3124a278452c8dd968682b521cc82.tar.xz | |
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 <linux@prisktech.co.nz>
[wsa: fixed one macro to shift 8 instead of 16]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-vt8500.txt | 24 |
1 files changed, 24 insertions, 0 deletions
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 : <IRQ> 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>; + }; |