nvidia,tegra210-dmic.yaml (2301B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/nvidia,tegra210-dmic.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Tegra210 DMIC Controller Device Tree Bindings 8 9description: | 10 The Digital MIC (DMIC) Controller is used to interface with Pulse 11 Density Modulation (PDM) input devices. It converts PDM signals to 12 Pulse Coded Modulation (PCM) signals. DMIC can be viewed as a PDM 13 receiver. 14 15maintainers: 16 - Jon Hunter <jonathanh@nvidia.com> 17 - Sameer Pujar <spujar@nvidia.com> 18 19allOf: 20 - $ref: name-prefix.yaml# 21 22properties: 23 $nodename: 24 pattern: "^dmic@[0-9a-f]*$" 25 26 compatible: 27 oneOf: 28 - const: nvidia,tegra210-dmic 29 - items: 30 - enum: 31 - nvidia,tegra234-dmic 32 - nvidia,tegra194-dmic 33 - nvidia,tegra186-dmic 34 - const: nvidia,tegra210-dmic 35 36 reg: 37 maxItems: 1 38 39 clocks: 40 maxItems: 1 41 42 clock-names: 43 const: dmic 44 45 assigned-clocks: 46 maxItems: 1 47 48 assigned-clock-parents: 49 maxItems: 1 50 51 assigned-clock-rates: 52 maxItems: 1 53 54 sound-name-prefix: 55 pattern: "^DMIC[1-9]$" 56 57 ports: 58 $ref: /schemas/graph.yaml#/properties/ports 59 properties: 60 port@0: 61 $ref: audio-graph-port.yaml# 62 unevaluatedProperties: false 63 description: | 64 DMIC ACIF (Audio Client Interface) port connected to the 65 corresponding AHUB (Audio Hub) ACIF port. 66 67 port@1: 68 $ref: audio-graph-port.yaml# 69 unevaluatedProperties: false 70 description: | 71 DMIC DAP (Digital Audio Port) interface which can be connected 72 to external audio codec for capture. 73 74required: 75 - compatible 76 - reg 77 - clocks 78 - clock-names 79 - assigned-clocks 80 - assigned-clock-parents 81 82additionalProperties: false 83 84examples: 85 - | 86 #include<dt-bindings/clock/tegra210-car.h> 87 88 dmic@702d4000 { 89 compatible = "nvidia,tegra210-dmic"; 90 reg = <0x702d4000 0x100>; 91 clocks = <&tegra_car TEGRA210_CLK_DMIC1>; 92 clock-names = "dmic"; 93 assigned-clocks = <&tegra_car TEGRA210_CLK_DMIC1>; 94 assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>; 95 assigned-clock-rates = <3072000>; 96 sound-name-prefix = "DMIC1"; 97 }; 98 99...