From: Hermes Zhang <chenhuiz@xxxxxxxx>
Document the device tree bindings of the multiple GPIOs LED driver
Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml.
Signed-off-by: Hermes Zhang <chenhuiz@xxxxxxxx>
---
Notes:
Fix typo and missing item
.../bindings/leds/leds-multi-gpio.yaml | 49 +++++++++++++++++++
1 file changed, 49 insertions(+)
create mode 100644 Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml
diff --git a/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml b/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml
new file mode 100644
index 000000000000..bc19d1758d92
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-multi-gpio.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-multi-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Multiple GPIOs LED driver
+
+maintainers:
+ - Hermes Zhang <chenhuiz@xxxxxxxx>
+
+description:
+ This will support some LED made of multiple GPIOs and the brightness of the
+ LED could map to different states of the GPIOs.
+
+properties:
+ compatible:
+ const: multi-gpio-led
+
+ led-gpios:
+ description: Array of one or more GPIOs pins used to control the LED.
+ minItems: 1
+ maxItems: 8 # Should be enough
+
+ led-states:
+ description: |
+ The array list the supported states here which will map to brightness
+ from 0 to maximum. Each item in the array will present all the GPIOs
+ value by bit.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ minItems: 1
+
+required:
+ - compatible
+ - led-gpios
+ - led-states
+
+additionalProperties: false
+
+examples:
+ - |
+ gpios-led {
+ compatible = "multi-gpio-led";
+
+ led-gpios = <&gpio0 23 0x1>,
+ <&gpio0 24 0x1>;
+ led-states = /bits/ 8 <0x00 0x01 0x02 0x03>;
+ };
+...
--
2.20.1
