[PATCH v6 1/3] dt-bindings: leds: add cznic,turris-omnia-leds binding
From: Marek Behún <hidden>
Date: 2020-07-21 12:59:28
Also in:
linux-leds
Subsystem:
arm/cz.nic turris support, led subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Marek Behún, Lee Jones, Pavel Machek, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add device-tree bindings documentation for Turris Omnia RGB LEDs. Signed-off-by: Marek Behún <redacted> Reviewed-by: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org --- .../leds/cznic,turris-omnia-leds.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
diff --git a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
new file mode 100644
index 000000000000..24ad1446445e
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml@@ -0,0 +1,90 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/cznic,turris-omnia-leds.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: CZ.NIC's Turris Omnia LEDs driver + +maintainers: + - Marek Behún <marek.behun@nic.cz> + +description: + This module adds support for the RGB LEDs found on the front panel of the + Turris Omnia router. There are 12 RGB LEDs that are controlled by a + microcontroller that communicates via the I2C bus. Each LED is described + as a subnode of this I2C device. + +properties: + compatible: + const: cznic,turris-omnia-leds + + reg: + description: I2C slave address of the microcontroller. + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^multi-led[0-9a-f]$": + type: object + allOf: + - $ref: leds-class-multicolor.yaml# + description: + This node represents one of the RGB LED devices on Turris Omnia. + No subnodes need to be added for subchannels since this controller only + supports RGB LEDs. + + properties: + reg: + minimum: 0 + maximum: 11 + description: + This property identifies one of the LEDs on the front panel of the + Turris Omnia router. + + required: + - reg + +additionalProperties: false + +examples: + - | + + #include <dt-bindings/leds/common.h> + + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + led-controller@2b { + compatible = "cznic,turris-omnia-leds"; + reg = <0x2b>; + #address-cells = <1>; + #size-cells = <0>; + + multi-led@0 { + /* + * No subnodes are needed, this controller only supports RGB + * LEDs. + */ + reg = <0>; + color = <LED_COLOR_ID_MULTI>; + function = LED_FUNCTION_POWER; + linux,default-trigger = "heartbeat"; + }; + + multi-led@a { + reg = <0xa>; + color = <LED_COLOR_ID_MULTI>; + function = LED_FUNCTION_INDICATOR; + function-enumerator = <1>; + }; + }; + }; + +...
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2.26.2