SK-AM62P-LP: 想詢問audio 晶片 TLV320AIC3104IRHBR 是否支持？

我們參考了這片EVM 來開發我們的板子

硬件這邊更換了audio chip 為 TLV320AIC3104IRHBR

我的BSP 是參考這邊使用Yocto 編譯出來的

https://software-dl.ti.com/processor-sdk-linux/esd/AM62PX/09_02_01_10/exports/docs/linux/Overview_Building_the_SDK.html

但是在kernel linux-ti-staging_6.1.bb

並沒有找到此晶片driver

可否提供該如何加入驅動以及dts的設定？

Thanks!

YuYuan Wang：

抱歉, 看起來這隻driver 有存在 kernel source 裡

build/arago-tmp-default-glibc/work-shared/am62pxx-evm/kernel-source/Documentation/devicetree/bindings/sound/tlv320aic3x.txt

在這邊找到了文件

目前參考EVM 關於sound 的dts 如下.

/ {tlv320_mclk: clk-0 {#clock-cells = <0>;compatible = "fixed-clock";clock-frequency = <12288000>;};codec_audio: sound {compatible = "simple-audio-card";simple-audio-card,name = "AM62x-SKEVM";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","MIC3R","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_i2c1 {status = "okay";pinctrl-names = "default";pinctrl-0 = <&main_i2c1_pins_default>;clock-frequency = <100000>;bootph-all;tlv320aic3106: audio-codec@1b {#sound-dai-cells = <0>;compatible = "ti,tlv320aic3106";reg = <0x1b>;ai3x-micbias-vg = <1>;/* 2.0V */};
}

如果要改成支援 "TLV320AIC3104IRHBR" 

有什麼需要注意的？

,

Alice：

您好，

      TLV320AIC3104的linux驱动在产品网页上有，您参考一下。

      TLV320AIC3104 数据表、产品信息和支持 | 德州仪器 TI.com.cn

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YuYuan Wang：

感謝！目前已經有看到驅動在kernel source code 裡面.

但是對於dts 要如何修改 是否有文件可以參考？

,

Alice：

您好，

     请参考  [FAQ] Linux Drivers: Device drivers for AIC31xx/DAC31xx/AIC325x/AIC320x/AIC326x/AIC321x – Audio forum – Audio – TI E2E support forums

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YuYuan Wang：

非常感謝！！有很多有用的資訊