| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | w1-gpio devicetree bindings |
| 2 | |
| 3 | Required properties: |
| 4 | |
| 5 | - compatible: "w1-gpio" |
| 6 | - gpios: one or two GPIO specs: |
| 7 | - the first one is used as data I/O pin |
| 8 | - the second one is optional. If specified, it is used as |
| 9 | enable pin for an external pin pullup. |
| 10 | |
| 11 | Optional properties: |
| 12 | |
| 13 | - linux,open-drain: if specified, the data pin is considered in |
| 14 | open-drain mode. |
| 15 | |
| 16 | Also refer to the generic w1.txt document. |
| 17 | |
| 18 | Examples: |
| 19 | |
| 20 | onewire { |
| 21 | compatible = "w1-gpio"; |
| 22 | gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; |
| 23 | |
| 24 | battery { |
| 25 | // ... |
| 26 | }; |
| 27 | }; |