snd_hda_intel/sst-acpi sound breakage on suspend/resume since 5.6-rc1

[Pierre-Louis Bossart]

On 3/19/20 11:51 AM, Dominik Brodowski wrote:
> On Thu, Mar 19, 2020 at 04:48:03PM +0100, Cezary Rojewski wrote:
>> On 2020-03-19 14:41, Mark Brown wrote:
>>> On Thu, Mar 19, 2020 at 02:00:49PM +0100, Dominik Brodowski wrote:
>>>
>>>> Have some good news now, namely that a bisect is complete: That pointed to
>>>> 1272063a7ee4 ("ASoC: soc-core: care .ignore_suspend for Component suspend");
>>>> therefore I've added Kuninori Morimoto to this e-mail thread.
>>>
>>> If that's an issue it feels more like a driver bug in that if the driver
>>> asked for ignore_suspend then it should expect not to have the suspend
>>> callback called.
>>>
>>
>> Requested for tests with following diff applied:
>>
>> diff --git a/sound/soc/intel/boards/broadwell.c
>> b/sound/soc/intel/boards/broadwell.c
>> index db7e1e87156d..6ed4c1b0a515 100644
>> --- a/sound/soc/intel/boards/broadwell.c
>> +++ b/sound/soc/intel/boards/broadwell.c
>> @@ -212,7 +212,6 @@ static struct snd_soc_dai_link broadwell_rt286_dais[] =
>> {
>>                  .init = broadwell_rt286_codec_init,
>>                  .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
>>                          SND_SOC_DAIFMT_CBS_CFS,
>> -               .ignore_suspend = 1,
>>                  .ignore_pmdown_time = 1,
>>                  .be_hw_params_fixup = broadwell_ssp0_fixup,
>>                  .ops = &broadwell_rt286_ops,
> 
> That patch fixes the issue(s). I didn't even need to revert 64df6afa0dab
> ("ASoC: Intel: broadwell: change cpu_dai and platform components for SOF")
> on top of that. But you can assess better whether that patch needs care for
> other reasons; for me, this one-liner you have suggested is perfect.

.ignore_suspend is set for bdw-rt5677.c and bdw-rt5650.c as well. I 
don't know if that was intentional.