ROCKCHIP multi dais driver
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Required properties:
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- compatible: "rockchip,multi-dais"
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- "rockchip,rk3308-multi-dais"
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- dais: The phandle of sub dais, such i2s, pdm etc.
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- capture,channel-mapping: map channels, one for each in dais,
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capture,channel-mapping = <2 6> means:
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i2s 2ch + pdm 6ch --> total 8ch capture.
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- playback,channel-mapping: map channels, one for each in dais.
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playback,channel-mapping = <4 4> means:
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i2s 4ch + pdm 4ch --> total 8ch playback.
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Required properties for i2s 16ch:
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- rockchip,grf: the phandle of the syscon node for GRF register.
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Optional properties:
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- frame-master: bool properties, frame master, one for each in dais.
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- bitclock-master: bool properties, bit clock master, one for each in dais.
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- bitclock-inversion: bool properties, bit clock inversion, one for each in dais.
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- frame-inversion: bool properties, frame clock inversion, one for each in dais.
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Example:
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multi_dais: multi-dais {
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status = "okay";
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compatible = "rockchip,multi-dais";
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dais = <&i2s_8ch_2>, <&pdm_8ch>;
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capture,channel-mapping = <2 6>;
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playback,channel-mapping = <4 4>;
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bitclock-master = <1 0>;
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frame-master = <1 0>;
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bitclock-inversion = <0 0>;
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frame-inversion = <0 0>;
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rockchip,grf = <&grf>;
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};
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&i2s_8ch_2 {
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status = "okay";
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rockchip,no-dmaengine;
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};
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&pdm_8ch {
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status = "okay";
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rockchip,no-dmaengine;
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};
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vad-sound {
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status = "okay";
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compatible = "rockchip,multicodecs-card";
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rockchip,card-name = "rockchip,rk3308-vad";
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rockchip,cpu = <&multi_dais>;
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rockchip,codec = <&acodec>, <&vad>;
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};
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