Commit | Line | Data |
---|---|---|
8ffaa0f4 JCPV |
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 | }; |