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| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2013-09-12 14:36:46 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2013-09-30 06:02:32 +0200 |
| commit | 7679c0e19120ee7839adf1f05904cbfcc7a7c2b9 (patch) | |
| tree | 41ca01d38eea96b54a53e10c286289c19b39393c /Documentation | |
| parent | i2c: rcar: get clock rate only once and simplify calculation (diff) | |
| download | linux-7679c0e19120ee7839adf1f05904cbfcc7a7c2b9.tar.xz 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')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-rcar.txt | 23 |
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 new file mode 100644 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>; +}; |