82 lines
2.2 KiB
YAML
82 lines
2.2 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/sound/nvidia,tegra186-asrc.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Tegra186 ASRC
|
||
|
|
|
||
|
|
description: |
|
||
|
|
Asynchronous Sample Rate Converter (ASRC) converts the sampling frequency
|
||
|
|
of the input signal from one frequency to another. It can handle over a
|
||
|
|
wide range of sample rate ratios (freq_in/freq_out) from 1:24 to 24:1.
|
||
|
|
ASRC has two modes of operation. One where ratio can be programmed in SW
|
||
|
|
and the other where it gets the information from ratio estimator module.
|
||
|
|
|
||
|
|
It supports sample rate conversions in the range of 8 to 192 kHz and
|
||
|
|
supports 6 streams upto 12 total channels. The input data size can be
|
||
|
|
16, 24 and 32 bits.
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Jon Hunter <jonathanh@nvidia.com>
|
||
|
|
- Mohan Kumar <mkumard@nvidia.com>
|
||
|
|
- Sameer Pujar <spujar@nvidia.com>
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: dai-common.yaml#
|
||
|
|
|
||
|
|
properties:
|
||
|
|
$nodename:
|
||
|
|
pattern: "^asrc@[0-9a-f]*$"
|
||
|
|
|
||
|
|
compatible:
|
||
|
|
oneOf:
|
||
|
|
- const: nvidia,tegra186-asrc
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- nvidia,tegra234-asrc
|
||
|
|
- nvidia,tegra194-asrc
|
||
|
|
- const: nvidia,tegra186-asrc
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
sound-name-prefix:
|
||
|
|
pattern: "^ASRC[1-9]$"
|
||
|
|
|
||
|
|
ports:
|
||
|
|
$ref: /schemas/graph.yaml#/properties/ports
|
||
|
|
description: |
|
||
|
|
ASRC has seven input ports and six output ports. Accordingly ACIF
|
||
|
|
(Audio Client Interfaces) port nodes are defined to represent the
|
||
|
|
ASRC inputs (port 0 to 6) and outputs (port 7 to 12). These are
|
||
|
|
connected to corresponding ports on AHUB (Audio Hub). Additional
|
||
|
|
input (port 6) is for receiving ratio information from estimator.
|
||
|
|
|
||
|
|
patternProperties:
|
||
|
|
'^port@[0-6]':
|
||
|
|
$ref: audio-graph-port.yaml#
|
||
|
|
unevaluatedProperties: false
|
||
|
|
description: ASRC ACIF input ports
|
||
|
|
'^port@[7-9]|1[1-2]':
|
||
|
|
$ref: audio-graph-port.yaml#
|
||
|
|
unevaluatedProperties: false
|
||
|
|
description: ASRC ACIF output ports
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
|
||
|
|
asrc@2910000 {
|
||
|
|
compatible = "nvidia,tegra186-asrc";
|
||
|
|
reg = <0x2910000 0x2000>;
|
||
|
|
sound-name-prefix = "ASRC1";
|
||
|
|
};
|
||
|
|
|
||
|
|
...
|