Re: [PATCH v2 0/4] soundwire: qcom: stablity fixes

From: Srinivas Kandagatla
Date: Wed Jun 07 2023 - 05:37:13 EST




On 05/06/2023 10:08, Johan Hovold wrote:
On Thu, May 25, 2023 at 02:38:08PM +0100, Srinivas Kandagatla wrote:
During x13s audio testing we hit few corner cases due to issues
in codec drivers and some obvious code bugs.

Here are the fixes for those issues, mostly the issues are around
devices loosing the sync in between runtime pm suspend resume path.

With codec fixes along with these fixes, audio on x13s is pretty stable.

Thanks,
Srini

Changes since v1:
- dropped runtime pm changes patch as unable to reproduced it anymore
- fixed clk stop flag as suggested by Pierre
- rebased on top of linux-next

I tried to update to this series on my 6.4-rc5 branch for the X13s and
the above changes appear to lead to breakages again.

These patches are based on linux next, we can not cleanly apply them on rc5 i guess without the depended patches.

I have tried these patches with your rc4 branch along with other depended patches my branch is at: https://git.linaro.org/people/srinivas.kandagatla/linux.git/log/?h=wip/sc8280xp-v6.4-rc4

this works fine for me, not seeing any issues so far.
tested both speakers and headset.


Specifically, with the updated clk stop flag (simple_clk_stop_capable) I
see:

[ 14.789533] wcd9380-codec sdw:0:0217:010d:00:3: Slave 1 state check1: UNATTACHED, status was 1
[ 14.789717] qcom-soundwire 3330000.soundwire-controller: qcom_swrm_irq_handler: SWR bus clsh detected
[ 14.796164] wcd9380-codec sdw:0:0217:010d:00:3: Slave 1 state check1: UNATTACHED, status was 1


and without the runtime pm patch that you dropped in v2 I get
intermittent (e.g. twice in five boots):

[ 11.527301] snd-sc8280xp sound: ASoC: adding FE link failed
[ 11.527409] snd-sc8280xp sound: ASoC: topology: could not load header: -517
Never seen this, looks like some corrupted tplg to me.. I might be wrong.

[ 11.527557] qcom-apm gprsvc:service:2:1: tplg component load failed-517
[ 11.527640] qcom-apm gprsvc:service:2:1: ASoC: error at snd_soc_component_probe on gprsvc:service:2:1: -22
[ 11.528079] snd-sc8280xp sound: ASoC: failed to instantiate card -22
[ 11.533388] snd-sc8280xp: probe of sound failed with error -22

Again, this was with 6.4-rc5, but these problems are likely still there
also with linux-next.

Have you tried linux-next?


--srini

Johan