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 7title: Tegra210 PEQ 8 9description: 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 16maintainers: 17 - Jon Hunter <jonathanh@nvidia.com> 18 - Mohan Kumar <mkumard@nvidia.com> 19 - Sameer Pujar <spujar@nvidia.com> 20 21properties: 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 35required: 36 - compatible 37 - reg 38 39additionalProperties: false 40 41examples: 42 - | 43 equalizer@702d8100 { 44 compatible = "nvidia,tegra210-peq"; 45 reg = <0x702d8100 0x100>; 46 }; 47 48... 49