drm/i915/audio: fix hdmi audio noise issue

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Some monitors will have noise or even no sound after
applying the patch 6014ac12.

In patch 6014ac12, it will reset the cts value to 0 for HDMI.
However, we need to disable Enable CTS or M Prog bit. This is
the initial setting after HW reset.

Fixes: 6014ac122e ("drm/i915/audio: set proper N/M in modeset")
Signed-off-by: Libin Yang <libin.yang@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1478853988-139842-1-git-send-email-libin.yang@intel.com
(cherry picked from commit 60abfbb86a)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

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This commit is contained in:

Libin Yang 2016-11-11 16:46:28 +08:00 • committed by Jani Nikula

parent 3acd240175

commit b9f16ff273

1 changed files with 5 additions and 2 deletions

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drivers/gpu/drm/i915/intel_audio.c

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