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RK3399-HDMI音频


RK3399-HDMI音频:


背景
Platform: RK3399
OS: Android7.1.2
Kernel: v4.4.103
主要针对HDMI-OUT, HDMI-IN这里不做讨论

内核HDMI声卡驱动
HDMI相关的声卡驱动官方已支持,只需修改DTS配置:
dts:

CODE
 hdmi_sound: hdmi-sound {
     status = "disabled";
     compatible = "simple-audio-card";
     simple-audio-card,format = "i2s";
     simple-audio-card,mclk-fs = <256>;
     simple-audio-card,name = "rockchip,hdmi";    simple-audio-card,cpu {
         sound-dai = <&i2s2>;
     };
     simple-audio-card,codec {
         sound-dai = <&hdmi>;
     };
 };

........

作者: Shell

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