drm/i915/audio: Fix audio detection issue on GLK
authorGaurav K Singh <gaurav.k.singh@intel.com>
Tue, 17 Apr 2018 18:22:18 +0000 (23:52 +0530)
committerJani Nikula <jani.nikula@intel.com>
Wed, 18 Apr 2018 08:04:26 +0000 (11:04 +0300)
commit8221229046e862977ae93ec9d34aa583fbd10397
tree91383316c259d4332ada1488bbc377a08b9dbd69
parent94f8dfc6cdfc3c48c3aea59ce528fa93cb54a69f
drm/i915/audio: Fix audio detection issue on GLK

On Geminilake, sometimes audio card is not getting
detected after reboot. This is a spurious issue happening on
Geminilake. 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 GLK. Extending this fix to GLK as well.

Tested by Du,Wenkai on GLK board.

Bspec: 21829

v2: Instead of checking GEN9_BC, BXT and GLK macros, use IS_GEN9 macro (Jani N)

Cc: <stable@vger.kernel.org> # b651bd2a3ae3 ("drm/i915/audio: Fix audio enumeration issue on BXT")
Cc: <stable@vger.kernel.org>
Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com>
Reviewed-by: Abhay Kumar <abhay.Kumar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1523989338-29677-1-git-send-email-gaurav.k.singh@intel.com
drivers/gpu/drm/i915/intel_audio.c