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ASoC: dt-bindings: Add bindings for SpacemiT K1
Add dt-binding for the i2s driver of SpacemiT's K1 SoC.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://patch.msgid.link/20251017-k1-i2s-v5-1-401ae3775fcd@linux.spacemit.com
Signed-off-by: Mark Brown <broonie@kernel.org>
authored by
Troy Mitchell
and committed by
Mark Brown
73978d27
93b2838c
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Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
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Documentation/devicetree/bindings/sound/spacemit,k1-i2s.yaml
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# 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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$id: http://devicetree.org/schemas/sound/spacemit,k1-i2s.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: K1 I2S controller
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description:
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The I2S bus (Inter-IC sound bus) is a serial link for digital
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audio data transfer between devices in the system.
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maintainers:
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- Troy Mitchell <troy.mitchell@linux.spacemit.com>
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allOf:
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- $ref: dai-common.yaml#
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properties:
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compatible:
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const: spacemit,k1-i2s
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reg:
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maxItems: 1
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clocks:
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items:
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- description: clock for I2S sysclk
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- description: clock for I2S bclk
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- description: clock for I2S bus
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- description: clock for I2S controller
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clock-names:
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items:
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- const: sysclk
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- const: bclk
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- const: bus
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- const: func
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dmas:
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minItems: 1
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maxItems: 2
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dma-names:
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minItems: 1
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items:
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- const: tx
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- const: rx
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resets:
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maxItems: 1
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port:
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$ref: audio-graph-port.yaml#
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unevaluatedProperties: false
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"#sound-dai-cells":
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const: 0
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- dmas
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- dma-names
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- resets
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- "#sound-dai-cells"
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/spacemit,k1-syscon.h>
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i2s@d4026000 {
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compatible = "spacemit,k1-i2s";
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reg = <0xd4026000 0x30>;
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clocks = <&syscon_mpmu CLK_I2S_SYSCLK>,
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<&syscon_mpmu CLK_I2S_BCLK>,
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<&syscon_apbc CLK_SSPA0_BUS>,
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<&syscon_apbc CLK_SSPA0>;
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clock-names = "sysclk", "bclk", "bus", "func";
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dmas = <&pdma0 21>, <&pdma0 22>;
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dma-names = "tx", "rx";
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resets = <&syscon_apbc RESET_SSPA0>;
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#sound-dai-cells = <0>;
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};