i2c: mxs: add device tree probe support

Add device tree probe support for i2c-mxs driver.  So far, it's only
been tested on imx28.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>

1 files changed, 16 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mxs.txt b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt
new file mode 100644
index 000000000000..1bfc02de1b0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt
@@ -0,0 +1,16 @@
+* Freescale MXS Inter IC (I2C) Controller
+
+Required properties:
+- compatible: Should be "fsl,<chip>-i2c"
+- reg: Should contain registers location and length
+- interrupts: Should contain ERROR and DMA interrupts
+
+Examples:
+
+i2c0: i2c@80058000 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        compatible = "fsl,imx28-i2c";
+        reg = <0x80058000 2000>;
+        interrupts = <111 68>;
+};