daudio0 {
    mclk_div    = <0x01>;
    frametype   = <0x00>;
    tdm_config  = <0x01>; 
    sign_extend     = <0x00>;
    msb_lsb_first   = <0x00>;
    pcm_lrck_period = <0x80>;
    slot_width_select = <0x20>;
    pinctrl-names   = "default", "sleep";
    pinctrl-0       = <&daudio0_pins_a>; 
    pinctrl-1       = <&daudio0_pins_b>;
    pinctrl_used    = <0x0>;
    status = "okay";
};

但是如果配置为tdm模式,并且指定tdm的通道数呢?
查看um手册有一个i2s/pcm_chcfg的配置,如下

是否是这里配置呢?但是这个貌似是snd有关的,是否是在应用层配置的时候设置tdm的输出通道数呢?有没有示例可以参考一下?