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标题: 基于linux系统如何使rk3399平台的hdmi和dp同时输出不同的声音？ [打印本页]

作者: robert 时间: 2021-9-9 10:26
标题: 基于linux系统如何使rk3399平台的hdmi和dp同时输出不同的声音？
目前声卡的dts配置如下：
i2s2: i2s@ff8a0000 {
            compatible = "rockchip,rk3399-i2s", "rockchip,rk3066-i2s";
            reg = <0x0 0xff8a0000 0x0 0x1000>;
            interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH 0>;
            dmas = <&dmac_bus 4>, <&dmac_bus 5>;
            dma-names = "tx";
            clock-names = "i2s_clk", "i2s_hclk";
            clocks = <&cru SCLK_I2S2_8CH>, <&cru HCLK_I2S2_8CH>;
            resets = <&cru SRST_I2S2_8CH>, <&cru SRST_H_I2S2_8CH>;
            reset-names = "reset-m", "reset-h";
            power-domains = <&power RK3399_PD_SDIOAUDIO>;
            status = "disabled";
};
hdmi_dp_sound: hdmi-dp-sound {
            status = "okay";
            compatible = "rockchip,rk3399-hdmi-dp";
            rockchip,cpu = <&i2s2>;
            rockchip,codec = <&hdmi>, <&cdn_dp>;
};
&i2s2 {
      #sound-dai-cells = <0>;
      //dmas = <&dmac_bus 4>;
      //dma-names = "tx";
      status = "okay";
};
哪位大神能帮忙告知如何操作才能使hdmi和dp同时输出不同的声音，万分感谢！！！

作者: robert 时间: 2021-9-10 14:02
有酬请教，酬劳可以商量的。

作者: 395876134 时间: 2021-9-16 10:35
什么板子

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