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|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-ahub.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Tegra210 AHUB Device Tree Bindings
description: |
The Audio Hub (AHUB) comprises a collection of hardware accelerators
for audio pre-processing, post-processing and a programmable full
crossbar for routing audio data across these accelerators. It has
external interfaces such as I2S, DMIC, DSPK. It interfaces with ADMA
engine through ADMAIF.
maintainers:
- Jon Hunter <jonathanh@nvidia.com>
- Sameer Pujar <spujar@nvidia.com>
properties:
$nodename:
pattern: "^ahub@[0-9a-f]*$"
compatible:
oneOf:
- enum:
- nvidia,tegra210-ahub
- nvidia,tegra186-ahub
- items:
- const: nvidia,tegra194-ahub
- const: nvidia,tegra186-ahub
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
const: ahub
assigned-clocks:
maxItems: 1
assigned-clock-parents:
maxItems: 1
assigned-clock-rates:
maxItems: 1
"#address-cells":
const: 1
"#size-cells":
const: 1
ranges: true
required:
- compatible
- reg
- clocks
- clock-names
- assigned-clocks
- assigned-clock-parents
- "#address-cells"
- "#size-cells"
- ranges
additionalProperties:
type: object
examples:
- |
#include<dt-bindings/clock/tegra210-car.h>
ahub@702d0800 {
compatible = "nvidia,tegra210-ahub";
reg = <0x702d0800 0x800>;
clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
clock-names = "ahub";
assigned-clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x702d0000 0x702d0000 0x0000e400>;
// All AHUB child nodes below
admaif@702d0000 {
compatible = "nvidia,tegra210-admaif";
reg = <0x702d0000 0x800>;
dmas = <&adma 1>, <&adma 1>,
<&adma 2>, <&adma 2>,
<&adma 3>, <&adma 3>,
<&adma 4>, <&adma 4>,
<&adma 5>, <&adma 5>,
<&adma 6>, <&adma 6>,
<&adma 7>, <&adma 7>,
<&adma 8>, <&adma 8>,
<&adma 9>, <&adma 9>,
<&adma 10>, <&adma 10>;
dma-names = "rx1", "tx1",
"rx2", "tx2",
"rx3", "tx3",
"rx4", "tx4",
"rx5", "tx5",
"rx6", "tx6",
"rx7", "tx7",
"rx8", "tx8",
"rx9", "tx9",
"rx10", "tx10";
};
i2s@702d1000 {
compatible = "nvidia,tegra210-i2s";
reg = <0x702d1000 0x100>;
clocks = <&tegra_car TEGRA210_CLK_I2S0>;
clock-names = "i2s";
assigned-clocks = <&tegra_car TEGRA210_CLK_I2S0>;
assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
assigned-clock-rates = <1536000>;
sound-name-prefix = "I2S1";
};
dmic@702d4000 {
compatible = "nvidia,tegra210-dmic";
reg = <0x702d4000 0x100>;
clocks = <&tegra_car TEGRA210_CLK_DMIC1>;
clock-names = "dmic";
assigned-clocks = <&tegra_car TEGRA210_CLK_DMIC1>;
assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_A_OUT0>;
assigned-clock-rates = <3072000>;
sound-name-prefix = "DMIC1";
};
// More child nodes to follow
};
...
|
