[参考译文] TLV320DAC3100EVM-U：tlv320aic31xx-codec 1-0018：aic31xx_setup_PLL：采样率(48000)和格式不受支持！

尊敬的 Jeff：  

感谢您让我知道。  

Ahmed

您好、Ahmed：

好的。 他们可能需要半天左右的时间来审查您的问题、因为问题在假期出现、但他们会很快与您联系。

再次感谢、
Jeff McPherson

最新动态：

我按如下所示修改了器件树：  

reg_audio_pwr_5v: regulator-audio-pwr_5v {
		compatible = "regulator-fixed";
		regulator-name = "audio-pwr_5v";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		regulator-always-on;
	};

	reg_audio_pwr_3v3: regulator-audio-pwr_3v3 {
		compatible = "regulator-fixed";
		regulator-name = "audio-pwr_3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		enable-active-high;
		regulator-always-on;
	};

	reg_audio_pwr_1v8: regulator-audio-pwr_1v8 {
		compatible = "regulator-fixed";
		regulator-name = "audio-pwr_1v8";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		enable-active-high;
		regulator-always-on;
	};

	audio_clk: audio-clk {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <12288000>;
	};
	
	codec_audio: sound {
		compatible = "simple-audio-card";
		simple-audio-card,name = "tlv320dac3100-codec";
		simple-audio-card,format = "i2s";
		simple-audio-card,bitclock-master = <&cpu_dai>;
		simple-audio-card,frame-master = <&cpu_dai>;
		simple-audio-card,widgets =
    		"Microphone", "Mic Jack",
			"Line", "Line In",
			"Line", "Line Out",
			"Headphone", "Headphone Jack",
			"Speaker", "Speaker Out";
		simple-audio-card,routing =
			"Mic Jack", "MICBIAS",
    		"Line In", "AIN1",      // Line input route
   			"Line Out", "HPL",      // Line out to left headphone
    		"Line Out", "HPR",      // Line out to right headphone
			"Headphone Jack", "HPL",
    		"Headphone Jack", "HPR";
		status = "okay";
		cpu_dai: simple-audio-card,cpu {
			sound-dai = <&sai1>;
		};
		codec_dai: simple-audio-card,codec {
			sound-dai = <&audio_codec>;
			clocks = <&audio_clk>;
		};
	};

&sai1 {
	#sound-dai-cells = <0>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_sai1>;
	assigned-clocks = <&clk IMX93_CLK_SAI1>;
	assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>;
	assigned-clock-rates = <12288000>;
	fsl,sai-mclk-direction-output;
	status = "okay";	
};

&lpi2c2 {
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_lpi2c2>;
	scl-gpios = <&gpio1 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
	sda-gpios = <&gpio1 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
	status = "okay";

	// Add TLV320AIC3100 audio codec node
	audio_codec: codec@18 {
		compatible = "ti,tlv320dac3100";
		pinctrl-names = "default";
		reg = <0x18>;
		#sound-dai-cells = <0>;
		ai31xx-micbias-vg = <MICBIAS_2_5V>;
		reset-gpio = <&gpio4 9 GPIO_ACTIVE_LOW>;
		HPVDD-supply = <&reg_audio_pwr_3v3>;
		AVDD-supply = <&reg_audio_pwr_3v3>;
		DVDD-supply = <&reg_audio_pwr_1v8>;
		IOVDD-supply = <&reg_audio_pwr_3v3>;
		SPRVDD-supply = <&reg_audio_pwr_3v3>;
		SPLVDD-supply = <&reg_audio_pwr_3v3>;
		SPKVDD-supply = <&reg_audio_pwr_5v>;
	};
};	

root@qs93-5210:~# speaker-test -D plughw:0,0 -r 441000 -F S16_LE -t sine -f 500 -c 2

speaker-test 1.2.8

Playback device is plughw:0,0
Stream parameters are 441000Hz, S16_LE, 2 channels
Sine wave rate is 500.0000Hz
Rate set to 441000Hz (requested 441000Hz)
Buffer size range from 73 to 301056
Period size range from 36 to 18798
Using max buffer size 301056
Periods = 4
was set period_size = 9408
was set buffer_size = 301056
 0 - Front Left
 1 - Front Right
...

root@qs93-5210:~# speaker-test -D plughw:0,0 -r 48000 -F S16_LE -t sine -f 500 -c 2

speaker-test 1.2.8

Playback device is plughw:[   77.992689] tlv320aic31xx-codec 1-0018: aic31xx_setup_pll: Sample rate (48000) and format not supported
0,0
Stream param[   78.003218] tlv320aic31xx-codec 1-0018: ASoC: error at snd_soc_dai_hw_params on tlv320dac31xx-hifi: -22
eters are 48000Hz[   78.014054]  443b0000.sai-tlv320dac31xx-hifi: ASoC: error at __soc_pcm_hw_params on 443b0000.sai-tlv320dac31xx-hifi: -22
, S16_LE, 2 channels
Sine wave rate is 500.0000Hz
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 32 to 131072
Period size range from 16 to 8184
Using max buffer size 131072
Periods = 4
Unable to set hw params for playback: Invalid argument
Setting of hwparams failed: Invalid argument

您好、Ahmed：

我们能否获得以下信息：

1) 1)在功能情况下和器件不工作的情况下器件配置寄存器的 I2C 转储？

2) 2)我们可以在示波器上监控480kHz 和48kHz 记录命令的 I2S 信号(BCLK、WCLK)吗？

谢谢。此致、

Lakshmi Narasimhan

您好、Ahmed：

很高兴知道它 现在正在工作。

上面的代码根据 MCLK 频率和采样率列出了器件的内部时钟配置。 由于对于48kHz 采样率、这里列出了12MHz 而不是12.288MHz 的时钟配置、因此12.288MHz 设置存在问题。

谢谢。此致、

Lakshmi Narasimhan