APPLIED[B]: [PATCH 0/1][SRU][[B][OEM-B] No audio output from Dell WD19 HDMI/DP after resumed from S3 or s2idle

[Kelsey Skunberg]

On 2020-03-31 09:51:59 , AceLan Kao wrote:
> BugLink: https://bugs.launchpad.net/bugs/1869642
> 
> [Impact]
> Plug-in HDMI/DP cable onto docking station after system resumed from
> S3/s2idle, there is no audio output from HDMI/DP even if you select the
> HDMI/DP audio output manually from sound settings.
> It shows this in dmesg when try testing speakers from sound settings
> [ 2052.030247] snd_hda_codec_hdmi hdaudioC0D2: Unable to sync register 0x2f0d00. -5
> 
> [Fix]
> This issue has been fixed in 4.16-rc1 by below commit
> 4918e1f87c5f PM / runtime: Rework pm_runtime_force_suspend/resume()
> 
> [Test]
> Verified on Dell Latitude 3310 + Dell WD19 docking station
> 
> [Regression Potential]
> Low, it fixes the device usage counter, and should also fix some other
> runpm issues.
> 
> Rafael J. Wysocki (1):
>   PM / runtime: Rework pm_runtime_force_suspend/resume()
> 
>  drivers/base/power/runtime.c | 74 +++++++++++++++++-------------------
>  1 file changed, 34 insertions(+), 40 deletions(-)
> 
> -- 
> 2.17.1
> 
>

Applied to bionic/master-next, thank you!

-Kelsey
 
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