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