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ASoC: meson: g12a: add toacodec dt-binding documentation

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Add the DT bindings and documentation of the internal audio DAC glue found
on Amlogic g12a and sm1 SoC families

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200221153607.1585499-2-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Jerome Brunet 2020-02-21 16:36:05 +01:00 committed by Mark Brown
parent bf726b1c86
commit bd56e593da
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Documentation/devicetree/bindings/sound/amlogic,g12a-toacodec.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/amlogic,g12a-toacodec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Amlogic G12a Internal DAC Control Glue
maintainers:
- Jerome Brunet <jbrunet@baylibre.com>
properties:
$nodename:
pattern: "^audio-controller@.*"
"#sound-dai-cells":
const: 1
compatible:
oneOf:
- items:
- const:
amlogic,g12a-toacodec
- items:
- enum:
- amlogic,sm1-toacodec
- const:
amlogic,g12a-toacodec
reg:
maxItems: 1
resets:
maxItems: 1
required:
- "#sound-dai-cells"
- compatible
- reg
- resets
examples:
- |
#include <dt-bindings/reset/amlogic,meson-g12a-audio-reset.h>
toacodec: audio-controller@740 {
compatible = "amlogic,g12a-toacodec";
reg = <0x0 0x740 0x0 0x4>;
#sound-dai-cells = <1>;
resets = <&clkc_audio AUD_RESET_TOACODEC>;
};

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include/dt-bindings/sound/meson-g12a-toacodec.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __DT_MESON_G12A_TOACODEC_H
#define __DT_MESON_G12A_TOACODEC_H
#define TOACODEC_IN_A 0
#define TOACODEC_IN_B 1
#define TOACODEC_IN_C 2
#define TOACODEC_OUT 3
#endif /* __DT_MESON_G12A_TOACODEC_H */