[PATCH v2 2/4] dt-bindings: auxdisplay: Add bindings for generic 7 segment LED

Chris Packham
2024-02-27T21:22:48Z

Add bindings for a generic 7 segment LED display using GPIOs.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---

Notes:
Changes in v2:
- Use compatible = "generic-gpio-7seg" to keep checkpatch.pl happy

.../auxdisplay/generic-gpio-7seg.yaml | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/auxdisplay/generic-gpio-7seg.yaml

diff --git a/Documentation/devicetree/bindings/auxdisplay/generic-gpio-7seg.yaml b/Documentation/devicetree/bindings/auxdisplay/generic-gpio-7seg.yaml
new file mode 100644
index 000000000000..46d53ebdf413
--- /dev/null
+++ b/Documentation/devicetree/bindings/auxdisplay/generic-gpio-7seg.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/auxdisplay/generic,gpio-7seg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO based LED segment display
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+properties:
+ compatible:
+ const: generic-gpio-7seg
+
+ segment-gpios:
+ description:
+ An array of GPIOs one per segment.
+ minItems: 7
+
+required:
+ - segment-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/gpio/gpio.h>
+
+ led-7seg {
+ compatible = "generic-gpio-7seg";
+ segment-gpios = <&gpio 0 GPIO_ACTIVE_LOW
+ &gpio 1 GPIO_ACTIVE_LOW
+ &gpio 2 GPIO_ACTIVE_LOW
+ &gpio 3 GPIO_ACTIVE_LOW
+ &gpio 4 GPIO_ACTIVE_LOW
+ &gpio 5 GPIO_ACTIVE_LOW
+ &gpio 6 GPIO_ACTIVE_LOW>;
+ };
--
2.43.2