Public bug reported:
===SRU Justification===
[Impact]
AMD Raven Ridge's audio controller doesn't get runtime suspended. It consumes
unnecessary power.
[Test]
With the patch, it can get runtime suspended and save ~1W for the system.
It can also get runtime resumed correctly when doing audio input/output.
[Fix]
Add AZX_DCAPS_PM_RUNTIME flag to let sound subsystem know it supports runtime
PM.
[Regression Potential]
Low. This change limits to Raven Ridge's audio controller.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: originate-from-1778861 somerville
** Tags added: originate-from-1778861 somerville
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https://bugs.launchpad.net/bugs/1782540
Title:
Allow Raven Ridge's audio controller to be runtime suspended
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