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authorShawn Guo <shawn.guo@linaro.org>2011-09-08 15:09:35 +0800
committerBen Dooks <ben-linux@fluff.org>2011-09-14 22:16:14 +0100
commitdfcd04b19d16c0016c705ed96a8b3cfa5315a2e9 (patch)
tree8053f44b44ee36faa97ede5914eca19fbb1ed123 /Documentation/devicetree/bindings/i2c
parent593702c71a415b153bd81fbc487394979f3e7a63 (diff)
i2c-imx: add device tree probe support
It adds device tree probe support for i2c-imx driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Darius Augulis <augulis.darius@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
-rw-r--r--Documentation/devicetree/bindings/i2c/fsl-imx-i2c.txt25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/fsl-imx-i2c.txt b/Documentation/devicetree/bindings/i2c/fsl-imx-i2c.txt
new file mode 100644
index 000000000000..f3cf43b66f7e
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/fsl-imx-i2c.txt
@@ -0,0 +1,25 @@
+* Freescale Inter IC (I2C) and High Speed Inter IC (HS-I2C) for i.MX
+
+Required properties:
+- compatible : Should be "fsl,<chip>-i2c"
+- reg : Should contain I2C/HS-I2C registers location and length
+- interrupts : Should contain I2C/HS-I2C interrupt
+
+Optional properties:
+- clock-frequency : Constains desired I2C/HS-I2C bus clock frequency in Hz.
+ The absence of the propoerty indicates the default frequency 100 kHz.
+
+Examples:
+
+i2c@83fc4000 { /* I2C2 on i.MX51 */
+ compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+ reg = <0x83fc4000 0x4000>;
+ interrupts = <63>;
+};
+
+i2c@70038000 { /* HS-I2C on i.MX51 */
+ compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
+ reg = <0x70038000 0x4000>;
+ interrupts = <64>;
+ clock-frequency = <400000>;
+};