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器件型号：AM625 主题：TLV320AIC3106 中讨论的其他器件
工具/软件：
问题描述：
我使用了 TLV320AIC3106、并发现当中的 MIC 录制声音时、它无法做到这一点。 但是、此芯片的输入线路和 SPK 功能正常。
我的 DTS 配置：
/{
......
tlv320_mclk: clk-0 {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <12288000>;
};
codec_audio: sound {
compatible = "simple-audio-card";
simple-audio-card,name = "scb7138-audio";
simple-audio-card,widgets =
"Headphone", "Headphone Jack",
"Line", "Line In",
"Microphone", "Microphone Jack";
simple-audio-card,routing =
"Headphone Jack", "HPLOUT",
"Headphone Jack", "HPROUT",
"LINE1L", "Line In",
"LINE1R", "Line In",
"LINE2L", "Microphone Jack",
"Microphone Jack", "Mic Bias";
simple-audio-card,format = "dsp_b";
simple-audio-card,bitclock-master = <&sound_master>;
simple-audio-card,frame-master = <&sound_master>;
simple-audio-card,bitclock-inversion;
simple-audio-card,cpu {
sound-dai = <&mcasp1>;
};
sound_master: simple-audio-card,codec {
sound-dai = <&tlv320aic3106>;
clocks = <&tlv320_mclk>;
};
};
};
&main_pmx0 {
main_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17/A17) I2C1_SCL */
AM62X_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17/A16) I2C1_SDA */
>;
};
main_mcasp1_pins_default: main-mcasp1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x090, PIN_INPUT, 2) /* (M24) GPMC0_BE0N_CLE.MCASP1_ACLKX */
AM62X_IOPAD(0x098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
AM62X_IOPAD(0x08c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEN.MCASP1_AXR0 */
AM62X_IOPAD(0x084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */
>;
};
};
&mcasp1 {
status = "okay";
#sound-dai-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&main_mcasp1_pins_default>;
op-mode = <0>; /* MCASP_IIS_MODE */
tdm-slots = <2>;
serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
1 0 2 0
0 0 0 0
0 0 0 0
0 0 0 0
>;
tx-num-evt = <0>;
rx-num-evt = <0>;
};
&main_i2c1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&main_i2c1_pins_default>;
clock-frequency = <100000>;
tlv320aic3106: audio-codec@1b {
#sound-dai-cells = <0>;
compatible = "ti,tlv320aic3106";
reg = <0x1b>;
ai3x-micbias-vg = <0x2>; /* 2.5V */
/* Regulators */
AVDD-supply = <&vcc_3v3_sys>;
IOVDD-supply = <&vcc_3v3_sys>;
DRVDD-supply = <&vcc_3v3_sys>;
DVDD-supply = <&vcc_1v8>;
};
};
