| Jean-Christophe PLAGNIOL-VILLARD | 8ffaa0f | 2012-02-05 18:22:34 +0800 | [diff] [blame] | 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 | }; |