你好：
我们的系统中用到了TDMB的I2S的输入以及蓝牙耳机的音频TDMA，我发现测试中一个问题只能使用一个音频设备。
aml_audiobus_write(actrl, EE_AUDIO_CLK_GATE_EN0, 0xffffffff);|
//aml_audiobus_write(actrl, EE_AUDIO_CLK_GATE_EN1, 0xffffffff);|
上面两个都使能则可以使用TDMB的I2S的输入，如果注释掉EE_AUDIO_CLK_GATE_EN1就可以使用蓝牙耳机的音频，这个问题通过配置dts可以解决吗？
下面是我目前用的dts配置：
compatible = “amlogic, g12a-sound-card”;
aml-audio-card,name = “AML-AUGESOUND”;
//aml-audio-card,aux-devs = <&amlogic_codec>;
/*for audio effect ,eqdrc */
aml-audio-card,effect = <&audio_effect>;
aml-audio-card,dai-link@0 {
format = "dsp_a";
mclk-fs = <512>;
//continuous-clock;
//bitclock-inversion;
//frame-inversion;
//bitclock-master = <&tdmacodec>;
//frame-master = <&tdmacodec>;
/* suffix-name, sync with android audio hal
* what's the dai link used for
*/
suffix-name = "alsaPORT-pcm";
tdmacpu: cpu {
sound-dai = <&aml_tdma>;
dai-tdm-slot-tx-mask =
<1 0 0 0 0 0 0 0>;
dai-tdm-slot-rx-mask =
<1 0 0 0 0 0 0 0>;
dai-tdm-slot-num = <8>;
dai-tdm-slot-width = <32>;
system-clock-frequency = <24576000>;
};
tdmacodec: codec {
sound-dai = <&dummy_codec &dummy_codec>;
};
};
aml-audio-card,dai-link@1 {
format = "i2s";
mclk-fs = <256>;
continuous-clock;
//bitclock-inversion;
//frame-inversion;
bitclock-master = <&aml_tdmb>;
frame-master = <&aml_tdmb>;
//bitclock-master = <&tdmbcodec>;
//frame-master = <&tdmbcodec>;
/* suffix-name, sync with android audio hal
* what's the dai link used for
*/
suffix-name = "alsaPORT-i2s";
cpu {
sound-dai = <&aml_tdmb>;
dai-tdm-slot-tx-mask = <1 1>;
dai-tdm-slot-rx-mask = <1 1>;
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <32>;
system-clock-frequency = <12288000>;
};
tdmbcodec: codec {
sound-dai = <&dummy_codec &dummy_codec
&amlogic_codec>;
};
};
aml_tdma: tdma {
compatible = "amlogic, g12a-snd-tdma";
#sound-dai-cells = <0>;
dai-tdm-lane-slot-mask-in = <0 1>;
dai-tdm-lane-oe-slot-mask-out = <1 0>;
dai-tdm-clk-sel = <0>;
clocks = <&clkaudio CLKID_AUDIO_MCLK_A
&clkc CLKID_MPLL0>;
clock-names = "mclk", "clk_srcpll";
pinctrl-names = "tdm_pins";
pinctrl-0 = <&tdmout_a &tdmin_a>;
};
aml_tdmb: tdmb {
compatible = "amlogic, g12a-snd-tdmb";
#sound-dai-cells = <0>;
dai-tdm-lane-slot-mask-in = <0 1 0 0>;
dai-tdm-lane-slot-mask-out = <1 0 0 0>;
dai-tdm-clk-sel = <1>;
clocks = <&clkaudio CLKID_AUDIO_MCLK_B
&clkc CLKID_MPLL1
&clkc CLKID_MPLL0
&clkaudio CLKID_AUDIO_SPDIFOUT_CTRL>;
clock-names = "mclk", "clk_srcpll",
"samesource_srcpll", "samesource_clk";
pinctrl-names = "tdm_pins";
pinctrl-0 = <&tdmb_mclk &tdmout_b &tdmin_b>;
mclk_pad = <0>; /* 0: mclk_0; 1: mclk_1 */
/*
* 0: tdmout_a;
* 1: tdmout_b;
* 2: tdmout_c;
* 3: spdifout;
* 4: spdifout_b;
*/
samesource_sel = <3>;
};