Hello,
We have an imx8mp based board from solid run and we are trying to have a simple audio solution with TAS5720L amplifier.
We are connecting TAS5720 to I2C2 and the I2S (SAI3) here are the dts we have
pinctrl_sai3: sai3grp {
fsl,pins = <
MX8MP_IOMUXC_SAI3_TXFS__AUDIOMIX_SAI3_TX_SYNC 0xd6
MX8MP_IOMUXC_SAI3_TXC__AUDIOMIX_SAI3_TX_BCLK 0xd6
MX8MP_IOMUXC_SAI3_RXD__AUDIOMIX_SAI3_RX_DATA00 0xd6
MX8MP_IOMUXC_SAI3_TXD__AUDIOMIX_SAI3_TX_DATA00 0xd6
MX8MP_IOMUXC_SAI3_MCLK__AUDIOMIX_SAI3_MCLK 0xd6
MX8MP_IOMUXC_SAI3_RXC__GPIO4_IO29 0xd6
>;
};
&sai3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sai3>;
assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
assigned-clock-rates = <12288000>;
clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SAI3_IPG>, <&clk IMX8MP_CLK_DUMMY>,
<&audiomix_clk IMX8MP_CLK_AUDIOMIX_SAI3_MCLK1>, <&clk IMX8MP_CLK_DUMMY>,
<&clk IMX8MP_CLK_DUMMY>;
clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3";
fsl,sai-mclk-direction-output;
status = "okay";
};
sound-ti {
compatible = "simple-audio-card";
simple-audio-card,name = "TI_Audio";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&dailink0_master>;
simple-audio-card,frame-master = <&dailink0_master>;
simple-audio-card,widgets =
"Microphone", "Microphone Jack",
"Headphone", "Headphone Jack",
"Speaker", "External Speaker";
simple-audio-card,routing =
"MIC_IN", "Microphone Jack",
"Headphone Jack", "HP_OUT",
"External Speaker", "LINE_OUT";
simple-audio-card,aux-devs = <&tas5720>;
dailink0_master: simple-audio-card,cpu {
sound-dai = <&sai3>;
dai-tdm-slot-num = <4>;
dai-tdm-slot-width = <32>;
};
simple-audio-card,codec {
sound-dai = <&codec1>;
clocks = <&clk IMX8MP_CLK_SAI3>;
};
};
codec1: codec1 {
compatible = "linux,snd-soc-dummy";
//compatible = "linux,bt-sco";
#sound-dai-cells = <0>;
status = "okay";
};
Everything builds fine, but no sound cards detected. There is an error
[ 2.086065] OF: /sound-ti/simple-audio-card,cpu: could not get #sound-dai-cells for /soc@0/bus@30c00000/spba-bus@30c00000/sai@30c30000
[ 2.098596] asoc-simple-card sound-ti: parse error -22
[ 2.104192] asoc-simple-card: probe of sound-ti failed with error -22
[ 2.122108] imx-cdnhdmi sound-hdmi: failed to find SAI platform device
[ 2.128662] imx-cdnhdmi: probe of sound-hdmi failed with error -22
[ 3.053248] No soundcards found.
Could you please guide me on this? Is my approach right. Do you have some sample cases of using TAS5720 on any imx devices?
regards
