86 lines
2.0 KiB
YAML
86 lines
2.0 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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$id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Atmel I2S controller
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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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Atmel I2S (Inter-IC Sound Controller) bus is the standard
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interface for connecting audio devices, such as audio codecs.
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properties:
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compatible:
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const: atmel,sama5d2-i2s
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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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clocks:
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items:
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- description: Peripheral clock
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- description: Generated clock (Optional)
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- description: I2S mux clock (Optional). Set
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with gclk when Master Mode is required.
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minItems: 1
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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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- const: muxclk
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minItems: 1
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dmas:
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items:
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- description: TX DMA Channel
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- description: RX DMA Channel
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dma-names:
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items:
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- const: tx
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- const: rx
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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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- clocks
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- clock-names
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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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i2s@f8050000 {
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compatible = "atmel,sama5d2-i2s";
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reg = <0xf8050000 0x300>;
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interrupts = <54 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(31))>,
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<&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(32))>;
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dma-names = "tx", "rx";
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clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>;
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clock-names = "pclk", "gclk", "muxclk";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_i2s0_default>;
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};
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