[Bug][SDW][CML_2 RTC1308] Paplay via speaker only has Left Channel Output.

[ClarexZhou]

Describe the bug
Paplay via speaker only has Left Channel Output. Because Paplay is using device 2: SDW1-speakers.
And device 2: SDW1-speakers is using Left channel. device 3: SDW2-speakers is using Right Channel.

UCM is using one 1308 UCM https://github.com/thesofproject/alsa-ucm-conf/tree/master/ucm/sof-sdw-rt711-1308-715 commit: 39528c5

To Reproduce

1. Do system reboot via "sudo reboot"
2. Run ./rt1308_mixer.sh to setup amixer setting for speaker
   rt1308_mixer.txt
3. Open Setting->Sound, select Speaker as Output Source.
4. paplay 48California_Dreaming.wav -vvv

Reproduce Rate
100%

Actual result
Only Left channel has output. Paplay is using device 2: SDW1-speakers.
And device 2: SDW1-speakers is using Left channel. device 3: SDW2-speakers is using Right

ubuntu@ubuntu-XPS-17-9700-02:~$ paplay 48California_Dreaming.wav -vvv
Opening a playback stream with sample specification 's16le 2ch 48000Hz' and channel map 'front-left,front-right'.
Connection established.
Stream successfully created.
Buffer metrics: maxlength=4194304, tlength=384000, prebuf=380164, minreq=3840
Using sample spec 's16le 2ch 48000Hz', channel map 'front-left,front-right'.
Connected to device alsa_output.pci-0000_00_1f.3-platform-sdw_rt711_rt1308_rt715.HiFi__hw_sofsdwrt7111308_2__sink (index: 4, suspended: no).
Stream started.

Expected result
Both L and R channel should have output when paplay via speaker.

Environment
Firmware: decd206 cml-009-drop-stable
Kernel: d6078f9 on integration/soundwire-latest
Kernel config: Run https://github.com/thesofproject/kconfig/blob/master/kconfig-sof-default.sh
Topology: Same with FW branch, sof-cml-rt711-rt1308-rt715.tplg
platform: CML Laptop with codec ALC711, 2 x RT1308, RT715 in SDW mode
UCM: https://github.com/thesofproject/alsa-ucm-conf/tree/master/ucm/sof-sdw-rt711-1308-715 commit: 39528c5

logger.txt
dmesg.txt

[ClarexZhou]

use UCM https://github.com/bardliao/alsa-ucm-conf/tree/separate-speakers/ucm/sof-sdw-rt711-1308-715 And PR #1567
2 RTC1308 Speaker are listed separately in sound setting. As below snapshot.
Is it expected? Or should list one speaker and output on both 2 RTC1308 at same time?

[bardliao]

use UCM https://github.com/bardliao/alsa-ucm-conf/tree/separate-speakers/ucm/sof-sdw-rt711-1308-715 And PR #1567
2 RTC1308 Speaker are listed separately in sound setting. As below snapshot.
Is it expected? Or should list one speaker and output on both 2 RTC1308 at same time?

@ClarexZhou It is expected for now. The two rt1308 are on different sdw link. Use multi-codecs in a dai link is a new feature on Soundwire and we will implement it soon.

[mengdonglin]

Depend on the new feature of synchronized playbackm #1644 is to address the feature in driver and WIP

[bardliao]

FW change is also required for the issue. A WIP PR is thesofproject/sof#2258

[sinahuang]

Issue can't be seen with sof-dev(commit：8f1c6ad) +PR #2058 (note :PR2058 is for other blocked issue #2031) and master (commit:af38b20b), closed it.