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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2013-09-12 14:36:46 +0200
committerWolfram Sang <wsa@the-dreams.de>2013-09-30 06:02:32 +0200
commit7679c0e19120ee7839adf1f05904cbfcc7a7c2b9 (patch)
tree41ca01d38eea96b54a53e10c286289c19b39393c /Documentation/devicetree
parent8d0494037bb2af32a22563d40703c1263fca318d (diff)
downloadtalos-op-linux-7679c0e19120ee7839adf1f05904cbfcc7a7c2b9.tar.gz
talos-op-linux-7679c0e19120ee7839adf1f05904cbfcc7a7c2b9.zip
i2c: rcar: add Device Tree support
This patch adds Device Tree support to the i2c-rcar driver and respective documentation. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/i2c/i2c-rcar.txt23
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
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index 000000000000..897cfcd5ce92
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
@@ -0,0 +1,23 @@
+I2C for R-Car platforms
+
+Required properties:
+- compatible: Must be one of
+ "renesas,i2c-rcar"
+ "renesas,i2c-r8a7778"
+ "renesas,i2c-r8a7779"
+ "renesas,i2c-r8a7790"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: interrupt specifier.
+
+Optional properties:
+- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
+ propoerty indicates the default frequency 100 kHz.
+
+Examples :
+
+i2c0: i2c@e6500000 {
+ compatible = "renesas,i2c-rcar-h2";
+ reg = <0 0xe6500000 0 0x428>;
+ interrupts = <0 174 0x4>;
+};
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