ROCKCHIP multicodecs audio
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Required properties:
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- compatible: "rockchip,multicodecs-card"
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- rockchip,cpu: The phandle of the Rockchip I2S/PDM controller that's
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connected to the CODEC
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- rockchip,codec: The phandle of audio codecs
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Optional properties:
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- rockchip,card-name: User specified audio sound card name, one string property.
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- rockchip,codec-hp-det : Detect the headphone via internal codec.
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- rockchip,wait-card-locked : This is a variable length array, user specified
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these sound cards need to be prepared and locked,
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otherwise the local slave card can be probed.
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- rockchip,audio-routing : sound card dapm routing.
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- hp-det-gpio : headphone detect gpio.
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- io-channels : headset mic/key detect adc channel.
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- io-channel-names : headset mic/key adc channel name.
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- spk-con-gpio : speaker enable/disabled gpio.
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- hp-con-gpio : headphone enable/disabled gpio.
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- keyup-threshold-microvolt: keyup-threshold-microvolt uV.
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- poll-interval : headset adc key poller internal ms.
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- play-pause-key : PLAYPAUSE key, can define the other key like vol+/vol- and so on.
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Optional dai-link subnode properties:
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- rockchip,format : CPU/CODEC common audio format.
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"i2s", "right_j", "left_j" , "dsp_a"
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"dsp_b", "ac97", "pdm", "msb", "lsb".
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- rockchip,frame-master : Indicates dai-link frame master.
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phandle to a cpu or codec subnode.
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- rockchip,bitclock-master : Indicates dai-link bit clock master.
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phandle to a cpu or codec subnode.
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- rockchip,bitclock-inversion : bool property. Add this if the
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dai-link uses bit clock inversion.
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- rockchip,frame-inversion : bool property. Add this if the
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dai-link uses frame clock inversion.
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- rockchip,mclk-fs : Multiplication factor between stream
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rate and codec mclk, applied only for
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the dai-link.
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Example:
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sound {
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compatible = "rockchip,multicodecs-card";
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rockchip,mclk-fs = <256>;
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rockchip,cpu = <&i2s0_8ch>;
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rockchip,codec = <&codec>, <&vad>;
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};
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Example 2 :
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es8388_sound: es8388-sound {
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status = "okay";
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compatible = "rockchip,multicodecs-card";
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rockchip,card-name = "rockchip-es8388";
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hp-det-gpio = <&gpio1 RK_PD5 GPIO_ACTIVE_LOW>;
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io-channels = <&saradc 3>;
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io-channel-names = "adc-detect";
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spk-con-gpio = <&gpio1 RK_PD3 GPIO_ACTIVE_HIGH>;
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hp-con-gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
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rockchip,format = "i2s";
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rockchip,mclk-fs = <256>;
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rockchip,cpu = <&i2s0_8ch>;
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rockchip,codec = <&es8388>;
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rockchip,audio-routing =
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"Headphone", "LOUT1",
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"Headphone", "ROUT1",
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"Speaker", "LOUT2",
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"Speaker", "ROUT2",
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"Headphone", "Headphone Power",
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"Headphone", "Headphone Power",
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"Speaker", "Speaker Power",
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"Speaker", "Speaker Power",
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"LINPUT1", "Main Mic",
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"LINPUT2", "Main Mic",
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"RINPUT1", "Headset Mic",
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"RINPUT2", "Headset Mic";
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pinctrl-names = "default";
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pinctrl-0 = <&hp_det>;
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keyup-threshold-microvolt = <1800000>;
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poll-interval = <100>;
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play-pause-key{
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label = "playpause";
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linux,code = <KEY_PLAYPAUSE>;
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press-threshold-microvolt = <2000>;
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};
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};
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