topic IMX8MP TLV320AIC3101 codec issues in i.MX Processors

IMX8MP TLV320AIC3101 codec issues

petertseng — Wed, 12 Jun 2024 09:59:28 GMT

I'm currently using i.MX Linux Yocto BSP (mickledore-6.1.22-2.0.0)

And I try to porting TLV320AIC3101 to IMX8MP processor.

In the hardware circuit, MCLK of TLV320AIC3101 is not used.

I can already detect the sound card

$ cat /proc/asound/cards 0 [TLV320AIC3101 ]: simple-card - TLV320AIC3101 TLV320AIC3101 1 [audiohdmi ]: audio-hdmi - audio-hdmi audio-hdmi

When I am trying to play audio

$ aplay -D hw:0 /usr/share/sounds/alsa/Front_Left.wav

I am getting following error :

[ 138.854902] tlv320aic31xx-codec 1-0018: aic31xx_set_dai_sysclk: Unsupported frequency 0 [ 138.865847] tlv320aic31xx-codec 1-0018: ASoC: error at snd_soc_dai_set_sysclk on tlv320aic31xx-hifi: -22

Here I attached my DTS tree

sound-tlv320aic310x { compatible = "simple-audio-card"; simple-audio-card,name = "TLV320AIC3101"; simple-audio-card,format = "i2s"; simple-audio-card,bitclock-master = <&dailink_master>; simple-audio-card,frame-master = <&dailink_master>; simple-audio-card,mclk-fs = <256>; simple-audio-card,widgets = "Headphone", "Headphone Jack"; simple-audio-card,routing = "Headphone Jack", "HPL", "Headphone Jack", "HPR"; dailink_master: simple-audio-card,cpu { sound-dai = <&sai3>; }; simple-audio-card,codec { sound-dai = <&codec>; clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIO_BLK_CTRL_SAI3_MCLK1>; }; }; &i2c2 { clock-frequency = <400000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c2>; status = "okay"; /* TLV320AIC3101 */ codec: tlv320aic3101@18 { #sound-dai-cells = <0>; compatible = "ti,tlv320aic310x"; reg = <0x18>; HPVDD-supply = <&buck4>; SPRVDD-supply = <&reg_audio_pwr>; SPLVDD-supply = <&reg_audio_pwr>; IOVDD-supply = <&buck5>; DVDD-supply = <&buck5>; AVDD-supply = <&buck4>; }; }; &sai3 { #sound-dai-cells = <0>; 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 = <&audio_blk_ctrl IMX8MP_CLK_AUDIO_BLK_CTRL_SAI3_IPG>, <&clk IMX8MP_CLK_DUMMY>, <&audio_blk_ctrl IMX8MP_CLK_AUDIO_BLK_CTRL_SAI3_MCLK1>, <&clk IMX8MP_CLK_DUMMY>, <&clk IMX8MP_CLK_DUMMY>; clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3"; //fsl,sai-mclk-direction-output; status = "okay"; }; pinctrl_sai3: sai3grp { fsl,pins = < MX8MP_IOMUXC_NAND_DATA01__AUDIOMIX_SAI3_TX_SYNC 0xd6 /* AUD_TXFS */ MX8MP_IOMUXC_NAND_ALE__AUDIOMIX_SAI3_TX_BCLK 0xd6 /* AUD_TXC */ MX8MP_IOMUXC_NAND_CE0_B__AUDIOMIX_SAI3_TX_DATA00 0xd6 /* AUD_TXD */ >; };

Anything I am missing out in dts tree.

Please help me in resolving this error

Thanks in advance,

Best Regards
Peter

Re: IMX8MP TLV320AIC3101 codec issues

JorgeCas — Wed, 12 Jun 2024 16:36:09 GMT

Hello,

The TLV320AIC3100 audio CODEC is not supported by default on our BSP. To use this CODEC to your system, you need to add a third-party driver provided by Texas Instruments and configure your device tree.

Unfortunately, there is no a guide to port this specific CODEC to the BSP. The references we have are the i.MX porting guide and EVK device tree (WM8960).

Maybe these threads could be helpful:

Verdin imx8mm with sound codec TLV320DAC3100

TLV320AIC3100: CLOCK Frequency issue

Best regards.

Re: IMX8MP TLV320AIC3101 codec issues

petertseng — Fri, 14 Jun 2024 07:45:17 GMT

Hi JorgeCas,

Sorry I used the wrong driver before.

Here I attach my changed DTS tree

&i2c2 { clock-frequency = <400000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c2>; status = "okay"; codec: tlv320aic3101@18 { #sound-dai-cells = <0>; compatible = "ti,tlv320aic3x"; reg = <0x18>; AVDD-supply = <&buck4>; IOVDD-supply = <&buck5>; DRVDD-supply = <&reg_audio_pwr>; DVDD-supply = <&buck5>; }; };

Then I tried to add TLV320AIC3101 in /sound/soc/fsl/fsl-asoc-card.c

--- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -807,6 +807,15 @@ static int fsl_asoc_card_probe(struct platform_device *pdev) codec_dai_name = "tlv320aic32x4-hifi"; priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP; priv->card_type = CARD_TLV320AIC32X4; + } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic3x")) { + codec_dai_name = "tlv320aic3x-hifi"; + priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + priv->dai_link[1].dpcm_capture = 0; + priv->dai_link[2].dpcm_capture = 0; + priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT; + priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT; + priv->card.dapm_routes = audio_map_tx; + priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx); } else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic31xx")) { codec_dai_name = "tlv320dac31xx-hifi"; priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; @@ -1186,6 +1195,7 @@ static const struct of_device_id fsl_asoc_card_dt_ids[] = { { .compatible = "fsl,imx-audio-cs42888", }, { .compatible = "fsl,imx-audio-cs427x", }, { .compatible = "fsl,imx-audio-tlv320aic32x4", }, + { .compatible = "fsl,imx-audio-tlv320aic3x", }, { .compatible = "fsl,imx-audio-tlv320aic31xx", }, { .compatible = "fsl,imx-audio-sgtl5000", }, { .compatible = "fsl,imx-audio-wm8962", },

Device Tree

sound-tlv320aic310x { compatible = "fsl,imx-audio-tlv320aic3x"; model = "tlv320aic3x-hifi"; audio-cpu = <&sai3>; audio-codec = <&codec>; audio-routing = "Headphone Jack", "HPLOUT", "Headphone Jack", "HPROUT"; mclk-id = <2>; };

The sound card can also be detected after turning on.

$ cat /proc/asound/cards 0 [audiohdmi ]: audio-hdmi - audio-hdmi audio-hdmi 1 [tlv320aic3xhifi]: tlv320aic3x-hif - tlv320aic3x-hifi tlv320aic3x-hifi

When I am trying to play audio

$ aplay -D hw:0 /usr/share/sounds/alsa/Front_Left.wav

I am getting following error :

Playing WAVE '/usr/share/sounds/alsa/Front_Left.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono aplay: set_params:1358: Channels count non available

Where did the error occur?
please help me

Best Regards
Peter