Merge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-3.10.git] / Documentation / devicetree / bindings / i2c / gpio-i2c.txt
1 Device-Tree bindings for i2c gpio driver
2
3 Required properties:
4         - compatible = "i2c-gpio";
5         - gpios: sda and scl gpio
6
7
8 Optional properties:
9         - i2c-gpio,sda-open-drain: sda as open drain
10         - i2c-gpio,scl-open-drain: scl as open drain
11         - i2c-gpio,scl-output-only: scl as output only
12         - i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform)
13         - i2c-gpio,timeout-ms: timeout to get data
14
15 Example nodes:
16
17 i2c@0 {
18         compatible = "i2c-gpio";
19         gpios = <&pioA 23 0 /* sda */
20                  &pioA 24 0 /* scl */
21                 >;
22         i2c-gpio,sda-open-drain;
23         i2c-gpio,scl-open-drain;
24         i2c-gpio,delay-us = <2>;        /* ~100 kHz */
25         #address-cells = <1>;
26         #size-cells = <0>;
27
28         rv3029c2@56 {
29                 compatible = "rv3029c2";
30                 reg = <0x56>;
31         };
32 };