[SRU][D/OEM-B-OSP1/E/unstable][PATCH 0/2] drm/i915: Fix the issue of "azx_get_response timeout" for hdmi audio on ICL platforms

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/1847192

Since Bionic kernel doesn't support ICL platforms (i915), so these two
patches will not be sent to Bionic kernel.

[Impact]
On the ICL platforms, the hdmi can't work well, the audio driver
will print "azx_get_response timeout" randomly, then the whole
audio doesn't work anymore.

[Fix]
Intel provide these two fixes to us, and we tested these two
patches, it really fixed the issue.

[Test Case]
Boot and check the hdmi audio, then suspend and resume, check
the hdmi audio, all work well.

[Regression Risk]
Low, Only enable the audio PIN and enable the clock for ICL. we
tested on both ICL and non-ICL, all worked well as before.


Kai Vehmanen (2):
  UBUNTU: SAUCE: drm/i915: Fix audio power up sequence for gen10+
    display
  UBUNTU: SAUCE: drm/i915: extend audio CDCLK>=2*BCLK constraint to more
    platforms

 drivers/gpu/drm/i915/i915_reg.h    |  3 +++
 drivers/gpu/drm/i915/intel_audio.c | 11 ++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

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2.17.1