101 lines
2.3 KiB
YAML
101 lines
2.3 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/atmel,sama5d2-classd.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Atmel ClassD Amplifier
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maintainers:
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- Nicolas Ferre <nicolas.ferre@microchip.com>
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- Alexandre Belloni <alexandre.belloni@bootlin.com>
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- Claudiu Beznea <claudiu.beznea@microchip.com>
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description:
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The Audio Class D Amplifier (CLASSD) is a digital input, Pulse Width
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Modulated (PWM) output stereo Class D amplifier.
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properties:
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compatible:
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const: atmel,sama5d2-classd
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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dmas:
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maxItems: 1
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dma-names:
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const: tx
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clocks:
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maxItems: 2
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clock-names:
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items:
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- const: pclk
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- const: gclk
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atmel,model:
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$ref: /schemas/types.yaml#/definitions/string
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default: CLASSD
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description: The user-visible name of this sound complex.
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atmel,pwm-type:
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$ref: /schemas/types.yaml#/definitions/string
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enum:
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- single
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- diff
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default: single
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description: PWM modulation type.
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atmel,non-overlap-time:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum:
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- 5
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- 10
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- 15
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- 20
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default: 10
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description:
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Set non-overlapping time, the unit is nanosecond(ns).
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Non-overlapping will be disabled if not specified.
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required:
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- compatible
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- reg
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- interrupts
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- dmas
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- dma-names
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- clock-names
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- clocks
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/dma/at91.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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classd: sound@fc048000 {
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compatible = "atmel,sama5d2-classd";
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reg = <0xfc048000 0x100>;
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interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
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dmas = <&dma0
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(AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
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| AT91_XDMAC_DT_PERID(47))>;
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dma-names = "tx";
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clocks = <&classd_clk>, <&classd_gclk>;
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clock-names = "pclk", "gclk";
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assigned-clocks = <&classd_gclk>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_classd_default>;
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atmel,model = "classd @ SAMA5D2-Xplained";
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atmel,pwm-type = "diff";
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atmel,non-overlap-time = <10>;
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};
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