From: Keguang Zhang <keguang.zhang@xxxxxxxxx> Add devicetree binding document for Loongson-1 AC97 controller. Signed-off-by: Keguang Zhang <keguang.zhang@xxxxxxxxx> --- .../bindings/sound/loongson,ls1b-ac97.yaml | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/loongson,ls1b-ac97.yaml b/Documentation/devicetree/bindings/sound/loongson,ls1b-ac97.yaml new file mode 100644 index 000000000000..1c6a2771f942 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/loongson,ls1b-ac97.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/loongson,ls1b-ac97.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 AC97 Controller + +maintainers: + - Keguang Zhang <keguang.zhang@xxxxxxxxx> + +description: + The Loongson-1 AC97 controller supports 2-channel stereo output and input. + It is paired with the DMA engine to handle playback and capture functions. + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + oneOf: + - const: loongson,ls1b-ac97 + - items: + - enum: + - loongson,ls1a-ac97 + - loongson,ls1c-ac97 + - const: loongson,ls1b-ac97 + + reg: + maxItems: 3 + + reg-names: + items: + - const: ac97 + - const: audio-tx + - const: audio-rx + + dmas: + maxItems: 2 + + dma-names: + items: + - const: tx + - const: rx + + '#sound-dai-cells': + const: 0 + +required: + - compatible + - reg + - reg-names + - dmas + - dma-names + - '#sound-dai-cells' + +unevaluatedProperties: false + +examples: + - | + audio-controller@1fe74000 { + compatible = "loongson,ls1b-ac97"; + reg = <0x1fe74000 0x60>, <0x1fe72420 0x4>, <0x1fe74c4c 0x4>; + reg-names = "ac97", "audio-tx", "audio-rx"; + dmas = <&dma 1>, <&dma 2>; + dma-names = "tx", "rx"; + #sound-dai-cells = <0>; + }; -- 2.43.0
