[PATCH v2] ALSA: HDA: Early Forbid of runtime PM

[Kai Vehmanen]

Hey,

On Fri, 28 Aug 2020, Takashi Iwai wrote:

> On Fri, 28 Aug 2020 01:05:36 +0200, Harsha Priya wrote:
> > This issue being common across all codecs, pm_runtime_forbid() is 
> > called when the codec object is created to fix this issue. 
> > A codec enables or disables runtime pm in its own probe function.
> 
> Thanks.  The only concern is about the influence on the relevant ASoC
> code, especially hdac_hda.c.
> 
> Kai, could you check whether this still works?

I believe Harsha is testing mostly with ASoC, so hdac_hda.c should be 
covered. 

I did queue a SOF CI job for this v2 patch and I'm seeing some failures
in module load/unload test that might be related and need checking before
we merge:

https://sof-ci.01.org/linuxpr/PR2403/build4400/devicetest/

The actual runtime-PM tests in our test set pass, but module load/unload 
has failures on some platforms. I'll follow-up when I have a better 
understanding what goes wrong.

Br, Kai