TLV320AIC3101: Not showing activity on I2C lines TLV320AIC3101 with Qcs610 Processor

Abhiram A

Part Number: TLV320AIC3101

Hi Team,

We configured the tlv codec [tlv320aic3101] in our dts as per written in the Documentation. We are using the driver code [tlv320aic3x.c]. Our master is the processor, which generates Mclk frequency of 12.28 MHz and Bclk of 1.53MHz

DTS FILE

&qupv3_se3_i2c {
status = "ok";
tlv320aic3x_codec: tlv320aic3x@18 {
compatible = "ti,tlv320aic3x";
reg = <0x18>;
gpio-reset = &tlv320aic321xx_rst_gpio;
DRVDD-supply = <&pm6150_l18>;
AVDD-supply = <&pm6150_l18>;
IOVDD-supply = <&pm6150_l10>;
DVDD-supply = <&pm6150_l10>;
};
};

With the i2cdetect command, its showing that the driver code is using

/ # i2cdetect -r -y 2
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

but while booting we can see that the driver code is using and it gets inside i2cprobe, init and the codec probe from the logs. But we were unable to see the activity on SCL and SDA lines while probing.

Also with manual i2cset command, its able to write and read the data.

The codec is not registered inside the sound card [inside /proc/asound/cards]

but the codec is being registered inside the :

/ # cat /sys/kernel/debug/asoc/codecs
btfmslim_slave
tlv320aic3x-codec.2-0018
snd-soc-dummy

Please help us to find the root cause,

Regards,
Abhiram

over 3 years ago

0 Brian Donoghue over 3 years ago

TI__Intellectual 2620 points

Hi Abhiram,

Our software team will be taking a look at this, expect a response within 48 hours.

Brian

0 Raphael Xu over 3 years ago

TI__Intellectual 940 points

Hi Abhiram,

What's your kernel version?If i2cdump command can works normally?

Regards

Raphael

0 Abhiram A over 3 years ago in reply to Raphael Xu

Prodigy 60 points

Hi Raphael,

Thanks for the reply. Our kernel version is 4.14.206. i2cdump command works only when that force flag is given (-f), otherwise it shows the device is busy.

Regards,
Abhiram

0 Brian Donoghue over 3 years ago in reply to Abhiram A

TI__Intellectual 2620 points

If you are able to share the i2c dump it would be useful for the team.

0 Abhiram A over 3 years ago in reply to Brian Donoghue

Prodigy 60 points

Hi Brian,

Yes I am attaching the i2c dump.

Regards,
Abhiram

0 Raphael Xu over 3 years ago in reply to Abhiram A

TI__Intellectual 940 points

Hi Abhiram,

It looks your soundcard register fail.You can try to force enable simple card as below:

CONFIG_SND_SIMPLE_CARD_UTILS=y

CONFIG_SND_SIMPLE_CARD=y

CONFIG_SND_SIMPLE_SCU_CARD=y

Regards

Raphael

0 Abhiram A over 3 years ago in reply to Raphael Xu

Prodigy 60 points

Hi Raphael,

Actually we are not using the above mentioned sound-card. We are using Qualcomm sound card.

For proper understanding,

/ # cat /proc/asound/cards
0 [sm6150idpsndcar]: sm6150-idp-snd- - sm6150-idp-snd-card
sm6150-idp-snd-card

Regards,
Abhiram

0 Raphael Xu over 3 years ago in reply to Abhiram A

TI__Intellectual 940 points

Hi Abhiram,

For the Qualcomm sound card,I find one reference settings of another device:

https://git.ti.com/cgit/tas256xsw-android/tas2563-android-driver/tree/dai_link.readme

For more Qualcomm sound card register questions,you can consult Qualcomm.

0 Abhiram A over 3 years ago in reply to Raphael Xu

Prodigy 60 points

Hi Raphael,

We already added the correct entry for the sound card register. We checked with another device, also found the registration was correct. But the main problem is the driver code itself not showing activity. Even it enters inside init function and the debug prints were shown on logs, but the write function haven't happened . Also just tried with the aplay command and it was not playing and we have seen some logs regarding the pll :

[ 82.951485] aic3x_hw_params(): unable to setup PLL

[ 82.951506] tlv320aic3x-codec 2-0018: ASoC: can't set tlv320aic3x-hifi hw params: -22

[ 82.951512] QUIN_MI2S_RX: ASoC: hw_params BE failed -22 [ 82.951518] SM6150 Media1: ASoC: hw_params BE failed -22

Regards,
Abhiram

0 Raphael Xu over 3 years ago in reply to Abhiram A

TI__Intellectual 940 points

Hi Abhiram,

Can you check if the MCLK and BCLK normal？

Hi Peter,

Can you check if the PLL register correct?

0 Abhiram A over 3 years ago in reply to Raphael Xu

Prodigy 60 points

Hi Raphael,

As from the master , we are getting an MCLK frequency of 12.288MHz, so we did calculations for the same as
We got value of k= 8.000 [PLL enabled equation] i; J=8 and D = 0000.

So we configured register value for pll as:

#Page 0 Select Register
i2cset -f -y 2 0x18 0 0x00

#SW Reset Register
i2cset -f -y 2 0x18 1 0x00

#Codec Sample Rate Select Register ie; 48KHz
i2cset -f -y 2 0x18 2 0x00

#Page 0/Register 3: PLL Programming Register A ie; Q = 16, P = 1
i2cset -f -y 2 0x18 3 0x81

#Page 0/Register 4: PLL Programming Register B ie; J = 8
i2cset -f -y 2 0x18 4 0x20

#Page 0/Register 5: PLL Programming Register C (1)
i2cset -f -y 2 0x18 5 0x00

#Page 0/Register 6: PLL Programming Register D
i2cset -f -y 2 0x18 6 0x00

Regards,
Abhiram

0 Raphael Xu over 3 years ago in reply to Abhiram A

TI__Intellectual 940 points

Hi Abhiram,

Are you using AIC3101EVM or integrated device on your board?What command do you use?aplay?

Regards

Raphael

0 Abhiram A over 3 years ago in reply to Raphael Xu

Prodigy 60 points

Hi Raphael,

We integrated this codec [tlv320aic3101] in our device .

Also the commands that we use are :

amixer -c 0 cset iface=MIXER,name='QUIN_MI2S_RX SampleRate' 6; --> which selects the sample rate as 48 Khz
amixer -c 0 cset iface=MIXER,name='QUIN_MI2S_RX Channels' 0; --> Channel 0
amixer -c 0 cset iface=MIXER,name='QUIN_MI2S_RX Format' 0; --> 16 bit
amixer -c 0 cset iface=MIXER,name='QUIN_MI2S_RX Audio Mixer MultiMedia1' 1;
aplay -D hw:0,0 testaudio.wav

Also FYI, we have sound card 0 and trying to play using Multimedia 1. QUIN MI2S is one of the I2S channel from Qualcomm Processor.
Also we tried the above aplay command with the qualcomm internal codec [just for testing] and the playback was working on that. But with tlv codec, playback was not happening as I mentioned the logs in the previous thread.

Regards,
Abhiram

0 pdjuandi over 3 years ago in reply to Raphael Xu

TI__Mastermind 29765 points

Hi,

Based on the settings below, it's for 48KHz Fs.

Regards.

0 Raphael Xu over 3 years ago in reply to Abhiram A

TI__Intellectual 940 points

Hi Abhiram,

You can add clock in you DTS.The reference is below:

compatible = "ti,tlv320aic32x4";
	reg = <0x18>;
	clocks = <&clks 201>;
	clock-names = "mclk";

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TLV320AIC3101: Not showing activity on I2C lines TLV320AIC3101 with Qcs610 Processor