nvidia,tegra186-asrc.yaml (2266B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/nvidia,tegra186-asrc.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Tegra186 ASRC Device Tree Bindings 8 9description: | 10 Asynchronous Sample Rate Converter (ASRC) converts the sampling frequency 11 of the input signal from one frequency to another. It can handle over a 12 wide range of sample rate ratios (freq_in/freq_out) from 1:24 to 24:1. 13 ASRC has two modes of operation. One where ratio can be programmed in SW 14 and the other where it gets the information from ratio estimator module. 15 16 It supports sample rate conversions in the range of 8 to 192 kHz and 17 supports 6 streams upto 12 total channels. The input data size can be 18 16, 24 and 32 bits. 19 20maintainers: 21 - Jon Hunter <jonathanh@nvidia.com> 22 - Mohan Kumar <mkumard@nvidia.com> 23 - Sameer Pujar <spujar@nvidia.com> 24 25allOf: 26 - $ref: name-prefix.yaml# 27 28properties: 29 $nodename: 30 pattern: "^asrc@[0-9a-f]*$" 31 32 compatible: 33 oneOf: 34 - const: nvidia,tegra186-asrc 35 - items: 36 - enum: 37 - nvidia,tegra234-asrc 38 - nvidia,tegra194-asrc 39 - const: nvidia,tegra186-asrc 40 41 reg: 42 maxItems: 1 43 44 sound-name-prefix: 45 pattern: "^ASRC[1-9]$" 46 47 ports: 48 $ref: /schemas/graph.yaml#/properties/ports 49 description: | 50 ASRC has seven input ports and six output ports. Accordingly ACIF 51 (Audio Client Interfaces) port nodes are defined to represent the 52 ASRC inputs (port 0 to 6) and outputs (port 7 to 12). These are 53 connected to corresponding ports on AHUB (Audio Hub). Additional 54 input (port 6) is for receiving ratio information from estimator. 55 56 patternProperties: 57 '^port@[0-6]': 58 $ref: audio-graph-port.yaml# 59 unevaluatedProperties: false 60 description: ASRC ACIF input ports 61 '^port@[7-9]|1[1-2]': 62 $ref: audio-graph-port.yaml# 63 unevaluatedProperties: false 64 description: ASRC ACIF output ports 65 66required: 67 - compatible 68 - reg 69 70additionalProperties: false 71 72examples: 73 - | 74 75 asrc@2910000 { 76 compatible = "nvidia,tegra186-asrc"; 77 reg = <0x2910000 0x2000>; 78 sound-name-prefix = "ASRC1"; 79 }; 80 81...