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,tegra210-peq.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Tegra210 PEQ
8
9 description:
10 The Parametric Equalizer (PEQ) is a cascade of biquad filters with
11 each filter tuned based on certain parameters. It can be used to
12 equalize the irregularities in the speaker frequency response.
13 PEQ sits inside Output Processing Engine (OPE) which interfaces
14 with Audio Hub (AHUB) via Audio Client Interface (ACIF).
15
16 maintainers:
17 - Jon Hunter <jonathanh@nvidia.com>
18 - Mohan Kumar <mkumard@nvidia.com>
19 - Sameer Pujar <spujar@nvidia.com>
20
21 properties:
22 compatible:
23 oneOf:
24 - const: nvidia,tegra210-peq
25 - items:
26 - enum:
27 - nvidia,tegra234-peq
28 - nvidia,tegra194-peq
29 - nvidia,tegra186-peq
30 - const: nvidia,tegra210-peq
31
32 reg:
33 maxItems: 1
34
35 required:
36 - compatible
37 - reg
38
39 additionalProperties: false
40
41 examples:
42 - |
43 equalizer@702d8100 {
44 compatible = "nvidia,tegra210-peq";
45 reg = <0x702d8100 0x100>;
46 };
47
48 ...
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