[PATCH] ALSA: hda/hdmi: add keep-alive support for ADL-P and DG2

[Kai Vehmanen]

Hi,

On Wed, 16 Feb 2022, Takashi Iwai wrote:

> >  static void silent_stream_enable(struct hda_codec *codec,
> >  				 struct hdmi_spec_per_pin *per_pin)
> >  {
(snip)
> >   unlock_out:
> >  	mutex_unlock(&per_pin->lock);
> > +
> > +	if (err || !keep_power)
> > +		snd_hda_power_down_pm(codec);
> 
> So this may leave the power up.  But where is the corresponding part
> that turns it down?  The newly added snd_hda_power_up_pm() in
> silent_stream_disable() is paired with the one at the tail of that
> function, so it looks like a refcount unbalance.  Kai?

indeed it is. I'll send a V2 with this fixed. 

Br, Kai