1aa56a9deSSameer Pujar# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2aa56a9deSSameer Pujar%YAML 1.2 3aa56a9deSSameer Pujar--- 4aa56a9deSSameer Pujar$id: http://devicetree.org/schemas/sound/nvidia,tegra210-amx.yaml# 5aa56a9deSSameer Pujar$schema: http://devicetree.org/meta-schemas/core.yaml# 6aa56a9deSSameer Pujar 7*dd3cb467SAndrew Lunntitle: Tegra210 AMX 8aa56a9deSSameer Pujar 9aa56a9deSSameer Pujardescription: | 10aa56a9deSSameer Pujar The Audio Multiplexer (AMX) block can multiplex up to four input streams 11aa56a9deSSameer Pujar each of which can have maximum 16 channels and generate an output stream 12aa56a9deSSameer Pujar with maximum 16 channels. A byte RAM helps to form an output frame by 13aa56a9deSSameer Pujar any combination of bytes from the input frames. 14aa56a9deSSameer Pujar 15aa56a9deSSameer Pujarmaintainers: 16aa56a9deSSameer Pujar - Jon Hunter <jonathanh@nvidia.com> 17aa56a9deSSameer Pujar - Mohan Kumar <mkumard@nvidia.com> 18aa56a9deSSameer Pujar - Sameer Pujar <spujar@nvidia.com> 19aa56a9deSSameer Pujar 20aa56a9deSSameer PujarallOf: 21aa56a9deSSameer Pujar - $ref: name-prefix.yaml# 22aa56a9deSSameer Pujar 23aa56a9deSSameer Pujarproperties: 24aa56a9deSSameer Pujar $nodename: 25aa56a9deSSameer Pujar pattern: "^amx@[0-9a-f]*$" 26aa56a9deSSameer Pujar 27aa56a9deSSameer Pujar compatible: 28aa56a9deSSameer Pujar oneOf: 29aa56a9deSSameer Pujar - const: nvidia,tegra210-amx 30aa56a9deSSameer Pujar - items: 31aa56a9deSSameer Pujar - const: nvidia,tegra186-amx 32aa56a9deSSameer Pujar - const: nvidia,tegra210-amx 33aa56a9deSSameer Pujar - const: nvidia,tegra194-amx 34fed44d6cSSameer Pujar - items: 35fed44d6cSSameer Pujar - const: nvidia,tegra234-amx 36fed44d6cSSameer Pujar - const: nvidia,tegra194-amx 37aa56a9deSSameer Pujar 38aa56a9deSSameer Pujar reg: 39aa56a9deSSameer Pujar maxItems: 1 40aa56a9deSSameer Pujar 41aa56a9deSSameer Pujar sound-name-prefix: 42aa56a9deSSameer Pujar pattern: "^AMX[1-9]$" 43aa56a9deSSameer Pujar 44aa56a9deSSameer Pujar ports: 45aa56a9deSSameer Pujar $ref: /schemas/graph.yaml#/properties/ports 46aa56a9deSSameer Pujar description: | 47aa56a9deSSameer Pujar AMX has four inputs and one output. Accordingly ACIF (Audio Client 48aa56a9deSSameer Pujar Interfaces) port nodes are defined to represent AMX inputs (port 0 49aa56a9deSSameer Pujar to 3) and output (port 4). These are connected to corresponding 50aa56a9deSSameer Pujar ports on AHUB (Audio Hub). 51aa56a9deSSameer Pujar 52aa56a9deSSameer Pujar patternProperties: 53aa56a9deSSameer Pujar '^port@[0-3]': 54aa56a9deSSameer Pujar $ref: audio-graph-port.yaml# 55aa56a9deSSameer Pujar unevaluatedProperties: false 56aa56a9deSSameer Pujar description: AMX ACIF input ports 57aa56a9deSSameer Pujar 58aa56a9deSSameer Pujar properties: 59aa56a9deSSameer Pujar port@4: 60aa56a9deSSameer Pujar $ref: audio-graph-port.yaml# 61aa56a9deSSameer Pujar unevaluatedProperties: false 62aa56a9deSSameer Pujar description: AMX ACIF output port 63aa56a9deSSameer Pujar 64aa56a9deSSameer Pujarrequired: 65aa56a9deSSameer Pujar - compatible 66aa56a9deSSameer Pujar - reg 67aa56a9deSSameer Pujar 68aa56a9deSSameer PujaradditionalProperties: false 69aa56a9deSSameer Pujar 70aa56a9deSSameer Pujarexamples: 71aa56a9deSSameer Pujar - | 72aa56a9deSSameer Pujar 73aa56a9deSSameer Pujar amx@702d3000 { 74aa56a9deSSameer Pujar compatible = "nvidia,tegra210-amx"; 75aa56a9deSSameer Pujar reg = <0x702d3000 0x100>; 76aa56a9deSSameer Pujar sound-name-prefix = "AMX1"; 77aa56a9deSSameer Pujar }; 78aa56a9deSSameer Pujar 79aa56a9deSSameer Pujar... 80