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The SPDIF hardware block in the A523 SoC has the same layout as the H616 for the transmitter side. However unlike previous generations, the hardware block now takes separate module clocks for the TX and RX sides. This presumably allows the hardware to send and receive audio streams at different sample rates. The new hardware also gained RX insertion detection, and some extra information registers. Add a new compatible for it without any fallbacks. Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Chen-Yu Tsai <wens@kernel.org> Link: https://patch.msgid.link/20251027125655.793277-4-wens@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
159 lines
3.3 KiB
YAML
159 lines
3.3 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-spdif.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner A10 S/PDIF Controller
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Liam Girdwood <lgirdwood@gmail.com>
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- Mark Brown <broonie@kernel.org>
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- Maxime Ripard <mripard@kernel.org>
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properties:
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"#sound-dai-cells":
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const: 0
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compatible:
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oneOf:
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- const: allwinner,sun4i-a10-spdif
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- const: allwinner,sun6i-a31-spdif
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- const: allwinner,sun8i-h3-spdif
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- const: allwinner,sun50i-h6-spdif
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- const: allwinner,sun50i-h616-spdif
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- const: allwinner,sun55i-a523-spdif
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- items:
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- const: allwinner,sun8i-a83t-spdif
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- const: allwinner,sun8i-h3-spdif
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- items:
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- const: allwinner,sun50i-a64-spdif
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- const: allwinner,sun8i-h3-spdif
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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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minItems: 2
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maxItems: 3
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clock-names:
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minItems: 2
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maxItems: 3
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# Even though it only applies to subschemas under the conditionals,
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# not listing them here will trigger a warning because of the
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# additionalsProperties set to false.
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dmas: true
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dma-names: true
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resets:
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maxItems: 1
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allOf:
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- $ref: dai-common.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- allwinner,sun6i-a31-spdif
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- allwinner,sun8i-h3-spdif
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- allwinner,sun50i-h6-spdif
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- allwinner,sun50i-h616-spdif
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- allwinner,sun55i-a523-spdif
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then:
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required:
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- resets
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- if:
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properties:
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compatible:
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contains:
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enum:
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- allwinner,sun8i-h3-spdif
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- allwinner,sun50i-h616-spdif
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then:
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properties:
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dmas:
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description: TX DMA Channel
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dma-names:
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const: tx
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else:
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properties:
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dmas:
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items:
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- description: RX DMA Channel
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- description: TX DMA Channel
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dma-names:
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items:
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- const: rx
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- const: tx
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- if:
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properties:
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compatible:
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contains:
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enum:
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- allwinner,sun55i-a523-spdif
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then:
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properties:
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clocks:
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items:
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- description: Bus Clock
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- description: TX Clock
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- description: RX Clock
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clock-names:
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items:
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- const: apb
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- const: tx
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- const: rx
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else:
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properties:
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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: apb
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- const: spdif
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required:
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- "#sound-dai-cells"
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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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- dmas
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- dma-names
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unevaluatedProperties: false
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examples:
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- |
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spdif: spdif@1c21000 {
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#sound-dai-cells = <0>;
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compatible = "allwinner,sun4i-a10-spdif";
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reg = <0x01c21000 0x40>;
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interrupts = <13>;
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clocks = <&apb0_gates 1>, <&spdif_clk>;
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clock-names = "apb", "spdif";
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dmas = <&dma 0 2>, <&dma 0 2>;
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dma-names = "rx", "tx";
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};
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...
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