drm/i915/audio: Fix audio enumeration issue on BXT
authorGaurav K Singh <gaurav.k.singh@intel.com>
Thu, 5 Apr 2018 16:42:24 +0000 (22:12 +0530)
committerJani Nikula <jani.nikula@intel.com>
Fri, 6 Apr 2018 08:37:29 +0000 (11:37 +0300)
commitb651bd2a3ae33f6a98d6ea36ef2518f5211bdc4f
tree5555dc12230a61f6b2024ff7268b0060d0302490
parent46a67c4d16ec86ca84a93f7dc92c54138e38a129
drm/i915/audio: Fix audio enumeration issue on BXT

On Apollolake, with stress test warm reboot, audio card was not getting
enumerated after reboot. This was a spurious issue happening on
Apollolake. HW codec and HD audio controller link was going out of sync
for which there was a fix in i915 driver but was not getting invoked for
BXT. Extending this fix to BXT as well.

Tested on apollolake chromebook by stress test warm reboot with 2500
iterations.

Bspec: 21829

Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1522946544-11524-1-git-send-email-gaurav.k.singh@intel.com
drivers/gpu/drm/i915/intel_audio.c