[alsa-devel] Where to find recent fix for HD-Audio runtime PM?
mengdong.lin at intel.com
Mon Dec 16 06:36:21 CET 2013
Many thanks for your patches, Takashi!
They fixed the PM bug on the kernel v3.9.
> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Friday, December 13, 2013 10:34 PM
> To: Lin, Mengdong
> Cc: alsa-devel at alsa-project.org
> Subject: Re: Where to find recent fix for HD-Audio runtime PM?
> At Fri, 13 Dec 2013 14:30:04 +0000,
> Lin, Mengdong wrote:
> > Hi Takashi,
> > If convenient, would you please point out your previous patches to
> make HD-Audio runtime PM stable?
> > I guess 'ALSA: hda - Refactor pm notification in hda_codec.c' is only one
> of them.
> > We observed audio failure (dead communication) after S3 if runtime PM
> is enabled on Haswell with Kernel v3.9.
> > We hope to back port your previous fix and further check this issue.
> The S3 problem might be rather the runtime refcount unbalance. There
> are multiple fixes: e6bbe666673ab044a3d39ddb74e4d9a401cf1d6f and
> commit 0fc28fc030a85aa3d6d14e9e9fca0c8237c9ffb5
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