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1# SPDX-License-Identifier: GPL-2.02%YAML 1.23---4$id: http://devicetree.org/schemas/sound/dmic-codec.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Generic PDM Digital microphone (DMIC) codec8 9maintainers:10 - Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>11 12allOf:13 - $ref: dai-common.yaml#14 15properties:16 compatible:17 const: dmic-codec18 19 '#sound-dai-cells':20 const: 021 22 dmicen-gpios:23 description: GPIO specifier for DMIC to control start and stop24 maxItems: 125 26 num-channels:27 description: Number of microphones on this DAI28 $ref: /schemas/types.yaml#/definitions/uint3229 minimum: 130 maximum: 831 default: 832 33 modeswitch-delay-ms:34 description: Delay (in ms) to complete DMIC mode switch35 36 wakeup-delay-ms:37 description: Delay (in ms) after enabling the DMIC38 39required:40 - compatible41 42unevaluatedProperties: false43 44examples:45 - |46 #include <dt-bindings/gpio/gpio.h>47 48 dmic {49 compatible = "dmic-codec";50 dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;51 num-channels = <1>;52 wakeup-delay-ms = <50>;53 modeswitch-delay-ms = <35>;54 };55...56