138 lines
2.8 KiB
YAML
138 lines
2.8 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/allwinner,sun50i-a100-ledc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A100 LED Controller
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maintainers:
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- Samuel Holland <samuel@sholland.org>
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description:
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The LED controller found in Allwinner sunxi SoCs uses a one-wire serial
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interface to drive up to 1024 RGB LEDs.
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properties:
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compatible:
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oneOf:
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- const: allwinner,sun50i-a100-ledc
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- items:
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- enum:
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- allwinner,sun20i-d1-ledc
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- allwinner,sun50i-r329-ledc
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- const: allwinner,sun50i-a100-ledc
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reg:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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interrupts:
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maxItems: 1
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clocks:
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items:
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- description: Bus clock
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- description: Module clock
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clock-names:
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items:
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- const: bus
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- const: mod
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resets:
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maxItems: 1
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dmas:
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maxItems: 1
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description: TX DMA channel
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dma-names:
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const: tx
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allwinner,pixel-format:
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description: Pixel format (subpixel transmission order), default is "grb"
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enum:
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- bgr
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- brg
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- gbr
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- grb
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- rbg
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- rgb
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allwinner,t0h-ns:
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default: 336
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description: Length of high pulse when transmitting a "0" bit
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allwinner,t0l-ns:
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default: 840
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description: Length of low pulse when transmitting a "0" bit
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allwinner,t1h-ns:
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default: 882
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description: Length of high pulse when transmitting a "1" bit
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allwinner,t1l-ns:
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default: 294
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description: Length of low pulse when transmitting a "1" bit
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allwinner,treset-ns:
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default: 300000
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description: Minimum delay between transmission frames
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patternProperties:
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"^multi-led@[0-9a-f]+$":
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type: object
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$ref: leds-class-multicolor.yaml#
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unevaluatedProperties: false
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properties:
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reg:
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minimum: 0
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maximum: 1023
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description: Index of the LED in the series (must be contiguous)
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required:
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- reg
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- clock-names
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- resets
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/leds/common.h>
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ledc: led-controller@2008000 {
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compatible = "allwinner,sun20i-d1-ledc",
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"allwinner,sun50i-a100-ledc";
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reg = <0x2008000 0x400>;
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interrupts = <36 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&ccu 12>, <&ccu 34>;
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clock-names = "bus", "mod";
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resets = <&ccu 12>;
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dmas = <&dma 42>;
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dma-names = "tx";
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#address-cells = <1>;
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#size-cells = <0>;
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multi-led@0 {
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reg = <0x0>;
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color = <LED_COLOR_ID_RGB>;
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function = LED_FUNCTION_INDICATOR;
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};
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};
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...
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