Add device tree binding documentation for the Cadence I2C controller.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
---
Changes in v4:
- moved adding DT docs into this dedicated patch
Changes in v3: None
Changes in v2: None
---
.../devicetree/bindings/i2c/i2c-cadence.txt | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-cadence.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-cadence.txt b/Documentation/devicetree/bindings/i2c/i2c-cadence.txt
new file mode 100644
index 000000000000..685adf513111
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-cadence.txt
@@ -0,0 +1,21 @@
+Binding for the Cadence I2C controller
+
+Required properties:
+ compatible: Compatibility string. Must be 'cdns,i2c-r1p10'.
+ clocks: From common clock bindings. Phandle to input clock.
+
+Optional properties:
+ clock-frequency: Desired operating frequency, in Hz, of the bus (actual may
+ be lower). Defaults to 400000 if not specified.
+
+Example:
+
+ i2c@e0004000 {
+ compatible = "cdns,i2c-r1p10";
+ clocks = <&clkc 38>;
+ interrupts = <0 25 4>;
+ reg = <0xE0004000 0x1000>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
--
1.9.1.1.gbb9f595
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