My team reproed it on Rembrandt but based on the failure (not getting
deepest state due to gfx) it should repro on Cezanne too.

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https://bugs.launchpad.net/bugs/1968475

Title:
  Fix broken HDMI audio on AMD PRO VII after S3

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-oem-5.14 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Won't Fix
Status in linux-oem-5.14 source package in Focal:
  Fix Committed
Status in linux source package in Jammy:
  Fix Committed
Status in linux-oem-5.14 source package in Jammy:
  Invalid

Bug description:
  [Impact]
  DP/HDMI audio on AMD PRO VII stops working after S3.

  [Fix]
  Ensure HDA function is suspended before ASIC reset so the subsequent
  resume can be carried out successfully.

  [Test]
  With the patch applied, DP/HDMI audio continues to work after S3.

  [Where problems could occur]
  The suspend_noirq phase should not trigger any interrupt, so if
  amdgpu_asic_reset() somehow raised IRQ, it can break the system.

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