1NVIDIA Tegra audio complex, with RT5640 CODEC 2 3Required properties: 4- compatible : "nvidia,tegra-audio-rt5640" 5- clocks : Must contain an entry for each entry in clock-names. 6 See ../clocks/clock-bindings.txt for details. 7- clock-names : Must include the following entries: 8 - pll_a 9 - pll_a_out0 10 - mclk (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk) 11- nvidia,model : The user-visible name of this sound complex. 12- nvidia,audio-routing : A list of the connections between audio components. 13 Each entry is a pair of strings, the first being the connection's sink, 14 the second being the connection's source. Valid names for sources and 15 sinks are the RT5640's pins (as documented in its binding), and the jacks 16 on the board: 17 18 * Headphones 19 * Speakers 20 * Mic Jack 21 22- nvidia,i2s-controller : The phandle of the Tegra I2S controller that's 23 connected to the CODEC. 24- nvidia,audio-codec : The phandle of the RT5640 audio codec. This binding 25 assumes that AIF1 on the CODEC is connected to Tegra. 26 27Optional properties: 28- nvidia,hp-det-gpios : The GPIO that detects headphones are plugged in 29 30Example: 31 32sound { 33 compatible = "nvidia,tegra-audio-rt5640-dalmore", 34 "nvidia,tegra-audio-rt5640"; 35 nvidia,model = "NVIDIA Tegra Dalmore"; 36 37 nvidia,audio-routing = 38 "Headphones", "HPOR", 39 "Headphones", "HPOL", 40 "Speakers", "SPORP", 41 "Speakers", "SPORN", 42 "Speakers", "SPOLP", 43 "Speakers", "SPOLN"; 44 45 nvidia,i2s-controller = <&tegra_i2s1>; 46 nvidia,audio-codec = <&rt5640>; 47 48 nvidia,hp-det-gpios = <&gpio 143 0>; /* GPIO PR7 */ 49 50 clocks = <&tegra_car 216>, <&tegra_car 217>, <&tegra_car 120>; 51 clock-names = "pll_a", "pll_a_out0", "mclk"; 52}; 53