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

YuYuan Wang

Prodigy 10 points

Part Number: SK-AM62P-LP
Other Parts Discussed in Thread: TLV320AIC3104

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!

3 个月前

0 YuYuan Wang 3 个月前

Prodigy 10 points

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？