# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/sound/rockchip,rk3399-gru-sound.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Rockchip with MAX98357A/RT5514/DA7219 codecs on GRU boards maintainers: - Heiko Stuebner properties: compatible: const: rockchip,rk3399-gru-sound rockchip,cpu: $ref: /schemas/types.yaml#/definitions/phandle-array description: | List of phandles to the Rockchip CPU DAI controllers connected to codecs minItems: 1 items: - items: - description: Phandle to the Rockchip I2S controllers - items: - description: | Phandle to the Rockchip SPDIF controller. Required when a DisplayPort audio codec is referenced in rockchip,codec rockchip,codec: $ref: /schemas/types.yaml#/definitions/phandle-array description: | The phandles of the audio codecs connected to the Rockchip CPU DAI controllers minItems: 1 maxItems: 6 items: maxItems: 1 dmic-wakeup-delay-ms: description: | specify delay time (ms) for DMIC ready. If this option is specified, a delay is required for DMIC to get ready so that rt5514 can avoid recording before DMIC sends valid data required: - compatible - rockchip,cpu - rockchip,codec additionalProperties: false examples: - | sound { compatible = "rockchip,rk3399-gru-sound"; rockchip,cpu = <&i2s0 &spdif>; rockchip,codec = <&max98357a &rt5514 &da7219 &cdn_dp>; dmic-wakeup-delay-ms = <20>; };