100 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/sound/nvidia,tegra210-dmic.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Tegra210 DMIC Controller8 9description: |10 The Digital MIC (DMIC) Controller is used to interface with Pulse11 Density Modulation (PDM) input devices. It converts PDM signals to12 Pulse Coded Modulation (PCM) signals. DMIC can be viewed as a PDM13 receiver.14 15maintainers:16 - Jon Hunter <jonathanh@nvidia.com>17 - Sameer Pujar <spujar@nvidia.com>18 19allOf:20 - $ref: dai-common.yaml#21 22properties:23 $nodename:24 pattern: "^dmic@[0-9a-f]*$"25 26 compatible:27 oneOf:28 - const: nvidia,tegra210-dmic29 - items:30 - enum:31 - nvidia,tegra234-dmic32 - nvidia,tegra194-dmic33 - nvidia,tegra186-dmic34 - const: nvidia,tegra210-dmic35 36 reg:37 maxItems: 138 39 clocks:40 maxItems: 141 42 clock-names:43 const: dmic44 45 assigned-clocks:46 maxItems: 147 48 assigned-clock-parents:49 maxItems: 150 51 assigned-clock-rates:52 maxItems: 153 54 sound-name-prefix:55 pattern: "^DMIC[1-9]$"56 57 ports:58 $ref: /schemas/graph.yaml#/properties/ports59 properties:60 port@0:61 $ref: audio-graph-port.yaml#62 unevaluatedProperties: false63 description: |64 DMIC ACIF (Audio Client Interface) port connected to the65 corresponding AHUB (Audio Hub) ACIF port.66 67 port@1:68 $ref: audio-graph-port.yaml#69 unevaluatedProperties: false70 description: |71 DMIC DAP (Digital Audio Port) interface which can be connected72 to external audio codec for capture.73 74required:75 - compatible76 - reg77 - clocks78 - clock-names79 - assigned-clocks80 - assigned-clock-parents81 82additionalProperties: false83 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...100