Re: [PATCH AUTOSEL 4.19 031/123] ASoC: Intel: Power down links before turning off display audio power

[Pierre-Louis Bossart]

On 12/5/18 3:48 AM, Mark Brown wrote:
> On Wed, Dec 05, 2018 at 04:34:23AM -0500, Sasha Levin wrote:
> > From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
> >
> > [ Upstream commit 4c10473d6ddf12ec124c9ff71a5d23bb5388478b ]
> >
> > On certain platforms, Display HDMI HDA codec was not going to sleep state
> > after the use when links are powered down after turning off the display
> > power. As per the HW recommendation, links are powered down before turning
> > off the display power to ensure that the codec goes to sleep state.
>
> Are we sure there's no dependencies here?

If you are referring to dependencies to other patches, not that I can 
think of. Based on timelines there isn't a strong link with 4.19: the 
patch was initially submitted in August (and missed), before v4.19 came 
out, and has also been used in 4.14 backports.