[alsa-devel] ASoC: bug report for ssm2602

[Scott Jiang]

Hi Mark and Lars,

>
> If it is the above patch is the problem perhaps that the register map
> isn't getting marked as dirty so the cache sync is being suppressed?
>

I print some info in regcache_sync_block_single() and found some registers
are skipped because the regmap thinks it's the same as default. I guess it's
a bug here. When I use regmap_read(), these values are not equal to default.

>> I believe this patch isn't related to the pm bug here.
>> By the way, have you ever tested your patches on any blackfin board?
>> Your patches for adau1761, ssm2602 and bf5xx-i2s all failed to run.
>
> I guess this is addressed to Lars-Peter but could you be more specific
> about the problems you are seeing?

bf5xx-i2s-pcm, I have sent a patch to Mark for this.

commit 30443408fd7201fd1911b09daccf92fae3cc700d
Author: Scott Jiang <scott.jiang.linux at gmail.com>
Date:   Fri Jul 18 16:14:57 2014 +0800

    ASoC: blackfin: use samples to set silence

    The third parameter for snd_pcm_format_set_silence needs the number
    of samples instead of sample bytes.

In fact, test cases still report bugs for this driver after I fix this
bug. There are
many Xrun for TDM codecs. I guess you change the parameters in
bf5xx_pcm_hardware
for TDM to I2S.

ssm2602, can't recover registers after resume.
adau1761, I'm not sure what the problem is. I'll take a look later.

Thanks,
Scott