40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
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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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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