drm/i915: rewrite hsw/bdw audio codec enable/disable sequences

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There's some serious confusion regarding ELD valid bit that gets set and
cleared back and forth etc. Rewrite it all based on the documented audio
codec enable/disable sequences.

v3: replace vblank wait with a comment

v4: expand the comment on what should be done with the vblank wait

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jani Nikula 2014-11-04 10:30:23 +02:00 • committed by Daniel Vetter

parent c46f111f51

commit 5fad84a753

1 changed files with 51 additions and 64 deletions

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drivers/gpu/drm/i915/intel_audio.c

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