tree 3b401dd805e4e6b0fb41cea391a836b7c6b46736
parent 615ed6ac446de32283a1076fbcfa4ca74b5c8c5a
author Ravi Kumar Alamanda <ralama@codeaurora.org> 1416278184 -0800
committer Narsinga Rao Chella <nrchella@codeaurora.org> 1416872423 -0800

hal: ensure EC reference is disabled before enabling

HW echo cancellation is not working after device switch due
to state mismatch between tinyalsa and the kernel.
Ensure that EC reference is disabled always before enabling
EC reference for the new device.

Change-Id: Ia1152402990db836d3f94278a7d36726310dc60c