TAS2563: Driver for Linux

Pablo García Robledo

Part Number: TAS2563
Other Parts Discussed in Thread: TAS2562, TAS2781

Dear all,
we are currently facing some issues while trying to tune the TAS2563 related to the Linux Drivers.

We are using TAS2563 with iMX8 on this archictecture:
- Yocto 5.10 Hardknott
- Linux Kernel 5.10.72 aarch64

We have found that we have two options to choose for the Driver:
1) Linux Kernel driver for TAS2562 supporting TAS2563.
https://source.codeaurora.org/external/imx/linux-imx/tree/sound/soc/codecs?h=lf-5.10.72-2.2.2
This driver lets us control Volume in alsamixer but we can't load the PurePath bin file.

2) Android driver available on
https://git.ti.com/cgit/tas256xsw-android/tas2563-android-driver
This driver lets us load PurePath bin file but we can't control Volume.

What is TI recommendation for us? Is there any driver that can be used directly with all the features?

over 3 years ago

0 Ivan Salazar over 3 years ago

TI__Guru** 109625 points

Hi Pablo,

I'd say the driver code on git.ti.com is the way to go.
I'm looping in our SW experts to comment on the driver capabilities, please allow a couple days for them to check this out.

Best regards,
-Ivan Salazar
Applications Engineer

0 Pablo García Robledo over 3 years ago in reply to Ivan Salazar

Prodigy 150 points

Hi Ivan, have you had any news on this?

Kind regards!

0 Ivan Salazar over 3 years ago in reply to Pablo García Robledo

TI__Guru** 109625 points

Hi Pablo,

Let me ping my team again on this one. Sorry for the delayed response.

Best regards,
-Ivan Salazar
Applications Engineer

0 Pablo García Robledo over 2 years ago in reply to Ivan Salazar

Prodigy 150 points

Hi Ivan, have you had any feedback on this topic?

Best regards!

0 Ivan Salazar over 2 years ago in reply to Pablo García Robledo

TI__Guru** 109625 points

Hi Pablo,

I apologize for the long wait time on this thread. I've asked again for feedback on this case. Please allow a couple more days as our SW/driver team is located in Asia.

Best regards,
-Ivan Salazar
Applications Engineer

0 Shenghao Ding over 2 years ago

TI__Genius 11630 points

Kindly use tas2563 driver code, and have you load the bin file successfully?

0 Gustavo Plaza over 2 years ago in reply to Shenghao Ding

Prodigy 90 points

Dear Mr. Ding,

Yes, we have loaded the bin file successfully. Our question has to do with the lack of volume control in alsamixer. How do we can control volume with tas2563 driver (https://git.ti.com/cgit/tas256xsw-android/tas2563-android-driver).

Best regards,

Gustavo.

0 Shenghao Ding over 2 years ago in reply to Gustavo Plaza

TI__Genius 11630 points

Hi Gustavo

Would you be so kind share the register dump with me during setting?

Shenghao Ding

0 Gustavo Plaza over 2 years ago in reply to Shenghao Ding

Prodigy 90 points

After loading the driver and binary, the i2cdump we get is the following:

root@tv100:~# i2cdump -f -y 2 0x4c
No size specified (using byte-data access)
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef
00: 00 00 02 20 c6 22 09 03 40 10 01 42 40 04 05 06    ..? ?"??@??B@???
10: 07 27 12 76 00 2e 60 0e 0c 00 f8 b1 df ef ff 04    ?'?v..`??.????.?
20: 00 00 80 00 04 00 11 80 00 5c 34 f0 7f b4 80 a0    ..?.?.??.\4?????
30: 59 40 80 34 4b 84 08 00 00 0c be 38 38 08 10 00    Y@?4K??..??88??.
40: b6 41 00 c0 10 21 00 b4 ac 34 80 00 00 00 00 00    ?A.??!.??4?.....
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
70: 00 00 00 f0 00 0f 00 00 80 00 00 00 00 10 28 00    ...?.?..?....?(.
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

0 Juan Alfonso Reyes Ajenjo over 2 years ago in reply to Gustavo Plaza

Prodigy 20 points

Dear Mr Ding,

the register dump is attached above. Our doubts have to do with volume control, as we can see in TAS2562 driver there are two controls:

Amp Gain Volume, that modifies PAGE 0x00 REG 0x03: PB_CFG1
Digital Volume Control, that modifies PAGE 0x02 REG 0x0C: DVC_CFG1

On the other hand, the TAS2563 driver only has one control:

Amp output level, that modifies PAGE 0x00 REG 0x03: PB_CFG1

With TAS2563 driver we cannot change digital volume, so we cannot manage different volumes, from mute to max volume. Why does this control not exist in TAS2563 driver?