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




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.