1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/sound/rockchip,rk3328-codec.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Rockchip rk3328 internal codec 8 9maintainers: 10 - Heiko Stuebner <heiko@sntech.de> 11 12properties: 13 compatible: 14 const: rockchip,rk3328-codec 15 16 reg: 17 maxItems: 1 18 19 clocks: 20 items: 21 - description: clock for audio codec 22 - description: clock for I2S master clock 23 24 clock-names: 25 items: 26 - const: pclk 27 - const: mclk 28 29 rockchip,grf: 30 $ref: /schemas/types.yaml#/definitions/phandle 31 description: 32 The phandle of the syscon node for the GRF register. 33 34 spk-depop-time-ms: 35 default: 200 36 description: 37 Speaker depop time in msec. 38 39 mute-gpios: 40 maxItems: 1 41 description: 42 GPIO specifier for external line driver control (typically the 43 dedicated GPIO_MUTE pin) 44 45 "#sound-dai-cells": 46 const: 0 47 48required: 49 - compatible 50 - reg 51 - clocks 52 - clock-names 53 - rockchip,grf 54 - "#sound-dai-cells" 55 56examples: 57 - | 58 #include <dt-bindings/gpio/gpio.h> 59 #include <dt-bindings/clock/rk3328-cru.h> 60 codec: codec@ff410000 { 61 compatible = "rockchip,rk3328-codec"; 62 reg = <0xff410000 0x1000>; 63 clocks = <&cru PCLK_ACODECPHY>, <&cru SCLK_I2S1>; 64 clock-names = "pclk", "mclk"; 65 rockchip,grf = <&grf>; 66 mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>; 67 spk-depop-time-ms = <100>; 68 #sound-dai-cells = <0>; 69 }; 70