commit 2db15e00984a14ab911766020bcb419e586322e1
author Sudheer Papothi <spapothi@codeaurora.org> Sat Oct 24 03:26:38 2015 +0530
committer Sudheer Papothi <spapothi@codeaurora.org> Tue Nov 03 00:50:18 2015 +0530
tree 6e22821905c75c4d4023a1993ff752e65f14a7a1
parent 6c6171bd589be7eb7d6a4462ab6a6f8824a5ee60

hal: Add performance lock during device switch

Add performance lock during device switch in audio playback
scenario. Acquiring performance lock will improve the device
switch latency. Change acquires performance lock during device
switch in audio playback scenario.

Change-Id: I28b951cb7180e2786d4c5037182169cfb48ba851

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index e6fbc5f..f54e9db 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -2006,8 +2006,13 @@
         if (val != 0) {
             out->devices = val;
 
-            if (!out->standby)
+            if (!out->standby) {
+                audio_extn_perf_lock_acquire(&adev->perf_lock_handle, 0,
+                                             adev->perf_lock_opts,
+                                             adev->perf_lock_opts_size);
                 select_devices(adev, out->usecase);
+                audio_extn_perf_lock_release(&adev->perf_lock_handle);
+            }
 
             if (output_drives_call(adev, out)) {
                 if(!voice_is_in_call(adev)) {