[alsa-devel] Remove depop delay for suspend and resume

[Lin, Mengdong]

> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Friday, November 29, 2013 4:23 PM


> > Thank you for the info! I only tested Baytrail-M platform.
> >
> > Is it possible to add a flag and set the flag a in board-specific fixup?
> 
> Yes, feel free to hack struct alc_spec.

Okay. I'll modify the patch as you suggested, and add a board fixup for Baytrail.

Thanks
Mengdong

> > > > At Fri, 29 Nov 2013 10:48:20 +0800, Kailang wrote:
> > > >>
> > > >> Hi Takashi,
> > > >>
> > > >> Intel test alc262.
> > > >> They find the suspend and resume time were > 50ms.
> > > >> So, I delete the delay for alc_eapd_shutup and alc_resume.
> > > >> If we want to have depop functions, we will follow like alc283.
> > > >
> > > > Which delay value to take is pretty specific to machine.  Removing
> > > > delay will likely cause problem on other machines.
> > > >
> > > > So, if we'd remove delays, do it only for tested machines, not do
> > > > blindly to all machines using the same codec chips.  The pop noise
> > > > isn't only determined by a codec chip but rather influenced by the
> > > > whole hardware analog design.
> > > >
> > > >
> > > > thanks,
> > > >
> > > > Takashi
> > > >
> > > > ------Please consider the environment before printing this e-mail.
> >