| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Bindings for Linear Technologies LT3593 LED controller |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible: Should be "lltc,lt3593". |
| 5 | - lltc,ctrl-gpios: A handle to the GPIO that is connected to the 'CTRL' |
| 6 | pin of the chip. |
| 7 | |
| 8 | The hardware supports only one LED. The properties of this LED are |
| 9 | configured in a sub-node in the device node. |
| 10 | |
| 11 | Optional sub-node properties: |
| 12 | - function: See Documentation/devicetree/bindings/leds/common.txt |
| 13 | - color: See Documentation/devicetree/bindings/leds/common.txt |
| 14 | - label: A label for the LED. If none is given, the LED will be |
| 15 | named "lt3595::" (deprecated) |
| 16 | - linux,default-trigger: The default trigger for the LED. |
| 17 | See Documentation/devicetree/bindings/leds/common.txt |
| 18 | - default-state: The initial state of the LED. |
| 19 | See Documentation/devicetree/bindings/leds/common.txt |
| 20 | |
| 21 | If multiple chips of this type are found in a design, each one needs to |
| 22 | be handled by its own device node. |
| 23 | |
| 24 | Example: |
| 25 | |
| 26 | #include <dt-bindings/leds/common.h> |
| 27 | |
| 28 | led-controller { |
| 29 | compatible = "lltc,lt3593"; |
| 30 | lltc,ctrl-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>; |
| 31 | |
| 32 | led { |
| 33 | function = LED_FUNCTION_BACKLIGHT; |
| 34 | color = <LED_COLOR_ID_WHITE>; |
| 35 | default-state = "on"; |
| 36 | }; |
| 37 | }; |