| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/auxdisplay/gpio-7-segment.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: GPIO based LED segment display |
| 8 | |
| 9 | maintainers: |
| 10 | - Chris Packham <chris.packham@alliedtelesis.co.nz> |
| 11 | |
| 12 | properties: |
| 13 | compatible: |
| 14 | const: gpio-7-segment |
| 15 | |
| 16 | segment-gpios: |
| 17 | description: | |
| 18 | An array of GPIOs one per segment. The first GPIO corresponds to the A |
| 19 | segment, the seventh GPIO corresponds to the G segment. Some LED blocks |
| 20 | also have a decimal point which can be specified as an optional eighth |
| 21 | segment. |
| 22 | |
| 23 | -a- |
| 24 | | | |
| 25 | f b |
| 26 | | | |
| 27 | -g- |
| 28 | | | |
| 29 | e c |
| 30 | | | |
| 31 | -d- dp |
| 32 | |
| 33 | minItems: 7 |
| 34 | maxItems: 8 |
| 35 | |
| 36 | required: |
| 37 | - segment-gpios |
| 38 | |
| 39 | additionalProperties: false |
| 40 | |
| 41 | examples: |
| 42 | - | |
| 43 | |
| 44 | #include <dt-bindings/gpio/gpio.h> |
| 45 | |
| 46 | led-7seg { |
| 47 | compatible = "gpio-7-segment"; |
| 48 | segment-gpios = <&gpio 0 GPIO_ACTIVE_LOW>, |
| 49 | <&gpio 1 GPIO_ACTIVE_LOW>, |
| 50 | <&gpio 2 GPIO_ACTIVE_LOW>, |
| 51 | <&gpio 3 GPIO_ACTIVE_LOW>, |
| 52 | <&gpio 4 GPIO_ACTIVE_LOW>, |
| 53 | <&gpio 5 GPIO_ACTIVE_LOW>, |
| 54 | <&gpio 6 GPIO_ACTIVE_LOW>; |
| 55 | }; |