diff --git a/hal/audio_extn/compress_capture.c b/hal/audio_extn/compress_capture.c
index 0a2de36..6559582 100644
--- a/hal/audio_extn/compress_capture.c
+++ b/hal/audio_extn/compress_capture.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013 - 2014, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright (C) 2013 The Android Open Source Project
diff --git a/hal/audio_extn/fm.c b/hal/audio_extn/fm.c
index 325d3f9..0c5bb07 100644
--- a/hal/audio_extn/fm.c
+++ b/hal/audio_extn/fm.c
@@ -122,11 +122,11 @@
     }
 
     /* 2. Get and set stream specific mixer controls */
-    disable_audio_route(adev, uc_info, true);
+    disable_audio_route(adev, uc_info);
 
     /* 3. Disable the rx and tx devices */
-    disable_snd_device(adev, uc_info->out_snd_device, false);
-    disable_snd_device(adev, uc_info->in_snd_device, true);
+    disable_snd_device(adev, uc_info->out_snd_device);
+    disable_snd_device(adev, uc_info->in_snd_device);
 
     list_remove(&uc_info->list);
     free(uc_info);
diff --git a/hal/audio_extn/hfp.c b/hal/audio_extn/hfp.c
index ed253c2..add4a7c 100644
--- a/hal/audio_extn/hfp.c
+++ b/hal/audio_extn/hfp.c
@@ -1,5 +1,5 @@
 /* hfp.c
-Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -245,11 +245,11 @@
     }
 
     /* 2. Get and set stream specific mixer controls */
-    disable_audio_route(adev, uc_info, true);
+    disable_audio_route(adev, uc_info);
 
     /* 3. Disable the rx and tx devices */
-    disable_snd_device(adev, uc_info->out_snd_device, false);
-    disable_snd_device(adev, uc_info->in_snd_device, true);
+    disable_snd_device(adev, uc_info->out_snd_device);
+    disable_snd_device(adev, uc_info->in_snd_device);
 
     list_remove(&uc_info->list);
     free(uc_info);
diff --git a/hal/audio_extn/spkr_protection.c b/hal/audio_extn/spkr_protection.c
index 6c0eec0..ce673ea 100644
--- a/hal/audio_extn/spkr_protection.c
+++ b/hal/audio_extn/spkr_protection.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013 - 2014, The Linux Foundation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -227,8 +227,8 @@
     uc_info_rx->out_snd_device = SND_DEVICE_OUT_SPEAKER_PROTECTED;
     pthread_mutex_lock(&adev->lock);
     disable_rx = true;
-    enable_snd_device(adev, SND_DEVICE_OUT_SPEAKER_PROTECTED, true);
-    enable_audio_route(adev, uc_info_rx, true);
+    enable_snd_device(adev, SND_DEVICE_OUT_SPEAKER_PROTECTED);
+    enable_audio_route(adev, uc_info_rx);
     pthread_mutex_unlock(&adev->lock);
 
     pcm_dev_rx_id = platform_get_pcm_device_id(uc_info_rx->id, PCM_PLAYBACK);
@@ -257,8 +257,8 @@
 
     pthread_mutex_lock(&adev->lock);
     disable_tx = true;
-    enable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK, true);
-    enable_audio_route(adev, uc_info_tx, true);
+    enable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
+    enable_audio_route(adev, uc_info_tx);
     pthread_mutex_unlock(&adev->lock);
 
     pcm_dev_tx_id = platform_get_pcm_device_id(uc_info_tx->id, PCM_CAPTURE);
@@ -336,12 +336,12 @@
         handle.pcm_tx = NULL;
         pthread_mutex_lock(&adev->lock);
         if (disable_rx) {
-            disable_snd_device(adev, SND_DEVICE_OUT_SPEAKER_PROTECTED, true);
-            disable_audio_route(adev, uc_info_rx, true);
+            disable_snd_device(adev, SND_DEVICE_OUT_SPEAKER_PROTECTED);
+            disable_audio_route(adev, uc_info_rx);
         }
         if (disable_tx) {
-            disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK, true);
-            disable_audio_route(adev, uc_info_tx, true);
+            disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
+            disable_audio_route(adev, uc_info_tx);
         }
         pthread_mutex_unlock(&adev->lock);
 
@@ -598,7 +598,7 @@
     }
     ALOGV("%s: snd_device(%d: %s)", __func__, snd_device,
          platform_get_snd_device_name(SND_DEVICE_OUT_SPEAKER_PROTECTED));
-    audio_route_apply_path(adev->audio_route,
+    audio_route_apply_and_update_path(adev->audio_route,
         platform_get_snd_device_name(SND_DEVICE_OUT_SPEAKER_PROTECTED));
 
     pthread_mutex_lock(&handle.mutex_spkr_prot);
@@ -610,8 +610,8 @@
         uc_info_tx.out_snd_device = SND_DEVICE_NONE;
         handle.pcm_tx = NULL;
 
-        enable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK, true);
-        enable_audio_route(adev, &uc_info_tx, true);
+        enable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
+        enable_audio_route(adev, &uc_info_tx);
 
         pcm_dev_tx_id = platform_get_pcm_device_id(uc_info_tx.id, PCM_CAPTURE);
         if (pcm_dev_tx_id < 0) {
@@ -642,8 +642,8 @@
         if (handle.pcm_tx)
             pcm_close(handle.pcm_tx);
         handle.pcm_tx = NULL;
-        disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK, true);
-        disable_audio_route(adev, &uc_info_tx, true);
+        disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
+        disable_audio_route(adev, &uc_info_tx);
     } else
         handle.spkr_processing_state = SPKR_PROCESSING_IN_PROGRESS;
     pthread_mutex_unlock(&handle.mutex_spkr_prot);
@@ -667,12 +667,12 @@
         if (handle.pcm_tx)
             pcm_close(handle.pcm_tx);
         handle.pcm_tx = NULL;
-        disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK, true);
-        disable_audio_route(adev, &uc_info_tx, true);
+        disable_snd_device(adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
+        disable_audio_route(adev, &uc_info_tx);
     }
     handle.spkr_processing_state = SPKR_PROCESSING_IN_IDLE;
     pthread_mutex_unlock(&handle.mutex_spkr_prot);
-    audio_route_reset_path(adev->audio_route,
+    audio_route_reset_and_update_path(adev->audio_route,
       platform_get_snd_device_name(SND_DEVICE_OUT_SPEAKER_PROTECTED));
     ALOGV("%s: Exit", __func__);
 }
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index e8d0d20..97fb87a 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -238,8 +238,7 @@
 }
 
 int enable_audio_route(struct audio_device *adev,
-                              struct audio_usecase *usecase,
-                              bool __unused update_mixer)
+                       struct audio_usecase *usecase)
 {
     snd_device_t snd_device;
     char mixer_path[MIXER_PATH_MAX_LENGTH];
@@ -267,8 +266,7 @@
 }
 
 int disable_audio_route(struct audio_device *adev,
-                        struct audio_usecase *usecase,
-                        bool __unused update_mixer)
+                        struct audio_usecase *usecase)
 {
     snd_device_t snd_device;
     char mixer_path[MIXER_PATH_MAX_LENGTH];
@@ -290,8 +288,7 @@
 }
 
 int enable_snd_device(struct audio_device *adev,
-                             snd_device_t snd_device,
-                             bool __unused update_mixer)
+                      snd_device_t snd_device)
 {
     char device_name[DEVICE_NAME_MAX_SIZE] = {0};
 
@@ -313,18 +310,6 @@
         return 0;
     }
 
-    /* Set BT sample rate before enabling the devices. Adding sample rate mixer
-     * control in use-case does not work because rate update takes place after
-     * AFE port open due to the limitation of mixer control order execution.
-     */
-    if ((snd_device == SND_DEVICE_OUT_BT_SCO) ||
-        (snd_device == SND_DEVICE_IN_BT_SCO_MIC)) {
-        audio_route_apply_and_update_path(adev->audio_route, BT_SCO_SAMPLE_RATE);
-    } else if ((snd_device == SND_DEVICE_OUT_BT_SCO_WB) ||
-               (snd_device == SND_DEVICE_IN_BT_SCO_MIC_WB)) {
-        audio_route_apply_and_update_path(adev->audio_route, BT_SCO_WB_SAMPLE_RATE);
-    }
-
     /* start usb playback thread */
     if(SND_DEVICE_OUT_USB_HEADSET == snd_device ||
        SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET == snd_device)
@@ -360,8 +345,7 @@
 }
 
 int disable_snd_device(struct audio_device *adev,
-                       snd_device_t snd_device,
-                       bool __unused update_mixer)
+                       snd_device_t snd_device)
 {
     char device_name[DEVICE_NAME_MAX_SIZE] = {0};
 
@@ -441,7 +425,7 @@
             ALOGV("%s: Usecase (%s) is active on (%s) - disabling ..",
                   __func__, use_case_table[usecase->id],
                   platform_get_snd_device_name(usecase->out_snd_device));
-            disable_audio_route(adev, usecase, false);
+            disable_audio_route(adev, usecase);
             switch_device[usecase->id] = true;
             num_uc_to_switch++;
         }
@@ -455,14 +439,14 @@
         list_for_each(node, &adev->usecase_list) {
             usecase = node_to_item(node, struct audio_usecase, list);
             if (switch_device[usecase->id]) {
-                disable_snd_device(adev, usecase->out_snd_device, true);
+                disable_snd_device(adev, usecase->out_snd_device);
             }
         }
 
         list_for_each(node, &adev->usecase_list) {
             usecase = node_to_item(node, struct audio_usecase, list);
             if (switch_device[usecase->id]) {
-                enable_snd_device(adev, snd_device, true);
+                enable_snd_device(adev, snd_device);
             }
         }
 
@@ -473,7 +457,7 @@
             /* Update the out_snd_device only before enabling the audio route */
             if (switch_device[usecase->id] ) {
                 usecase->out_snd_device = snd_device;
-                enable_audio_route(adev, usecase, false);
+                enable_audio_route(adev, usecase);
             }
         }
     }
@@ -509,7 +493,7 @@
             ALOGV("%s: Usecase (%s) is active on (%s) - disabling ..",
                   __func__, use_case_table[usecase->id],
                   platform_get_snd_device_name(usecase->in_snd_device));
-            disable_audio_route(adev, usecase, false);
+            disable_audio_route(adev, usecase);
             switch_device[usecase->id] = true;
             num_uc_to_switch++;
         }
@@ -523,14 +507,14 @@
         list_for_each(node, &adev->usecase_list) {
             usecase = node_to_item(node, struct audio_usecase, list);
             if (switch_device[usecase->id]) {
-                disable_snd_device(adev, usecase->in_snd_device, true);
+                disable_snd_device(adev, usecase->in_snd_device);
             }
         }
 
         list_for_each(node, &adev->usecase_list) {
             usecase = node_to_item(node, struct audio_usecase, list);
             if (switch_device[usecase->id]) {
-                enable_snd_device(adev, snd_device, true);
+                enable_snd_device(adev, snd_device);
             }
         }
 
@@ -541,7 +525,7 @@
             /* Update the in_snd_device only before enabling the audio route */
             if (switch_device[usecase->id] ) {
                 usecase->in_snd_device = snd_device;
-                enable_audio_route(adev, usecase, false);
+                enable_audio_route(adev, usecase);
             }
         }
     }
@@ -708,13 +692,13 @@
 
     /* Disable current sound devices */
     if (usecase->out_snd_device != SND_DEVICE_NONE) {
-        disable_audio_route(adev, usecase, true);
-        disable_snd_device(adev, usecase->out_snd_device, true);
+        disable_audio_route(adev, usecase);
+        disable_snd_device(adev, usecase->out_snd_device);
     }
 
     if (usecase->in_snd_device != SND_DEVICE_NONE) {
-        disable_audio_route(adev, usecase, true);
-        disable_snd_device(adev, usecase->in_snd_device, true);
+        disable_audio_route(adev, usecase);
+        disable_snd_device(adev, usecase->in_snd_device);
     }
 
     /* Applicable only on the targets that has external modem.
@@ -730,12 +714,12 @@
     if (out_snd_device != SND_DEVICE_NONE) {
         if (usecase->devices & AUDIO_DEVICE_OUT_ALL_CODEC_BACKEND)
             check_usecases_codec_backend(adev, usecase, out_snd_device);
-        enable_snd_device(adev, out_snd_device, false);
+        enable_snd_device(adev, out_snd_device);
     }
 
     if (in_snd_device != SND_DEVICE_NONE) {
         check_and_route_capture_usecases(adev, usecase, in_snd_device);
-        enable_snd_device(adev, in_snd_device, false);
+        enable_snd_device(adev, in_snd_device);
     }
 
     if (usecase->type == VOICE_CALL || usecase->type == VOIP_CALL)
@@ -746,7 +730,7 @@
     usecase->in_snd_device = in_snd_device;
     usecase->out_snd_device = out_snd_device;
 
-    enable_audio_route(adev, usecase, true);
+    enable_audio_route(adev, usecase);
 
     /* Applicable only on the targets that has external modem.
      * Enable device command should be sent to modem only after
@@ -781,10 +765,10 @@
     voice_check_and_stop_incall_rec_usecase(adev, in);
 
     /* 1. Disable stream specific mixer controls */
-    disable_audio_route(adev, uc_info, true);
+    disable_audio_route(adev, uc_info);
 
     /* 2. Disable the tx device */
-    disable_snd_device(adev, uc_info->in_snd_device, true);
+    disable_snd_device(adev, uc_info->in_snd_device);
 
     list_remove(&uc_info->list);
     free(uc_info);
@@ -1113,7 +1097,7 @@
         usecase = node_to_item(node, struct audio_usecase, list);
         if (usecase->type == PCM_PLAYBACK &&
                 usecase->devices & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
-            disable_audio_route(adev, usecase, true);
+            disable_audio_route(adev, usecase);
         }
     }
 
@@ -1125,7 +1109,7 @@
         usecase = node_to_item(node, struct audio_usecase, list);
         if (usecase->type == PCM_PLAYBACK &&
                 usecase->devices & AUDIO_DEVICE_OUT_AUX_DIGITAL) {
-            enable_audio_route(adev, usecase, true);
+            enable_audio_route(adev, usecase);
         }
     }
 
@@ -1155,10 +1139,10 @@
     }
 
     /* 1. Get and set stream specific mixer controls */
-    disable_audio_route(adev, uc_info, true);
+    disable_audio_route(adev, uc_info);
 
     /* 2. Disable the rx device */
-    disable_snd_device(adev, uc_info->out_snd_device, true);
+    disable_snd_device(adev, uc_info->out_snd_device);
 
     list_remove(&uc_info->list);
     free(uc_info);
diff --git a/hal/audio_hw.h b/hal/audio_hw.h
index 01f5a0c..3115f1a 100644
--- a/hal/audio_hw.h
+++ b/hal/audio_hw.h
@@ -256,17 +256,15 @@
 int select_devices(struct audio_device *adev,
                           audio_usecase_t uc_id);
 int disable_audio_route(struct audio_device *adev,
-                               struct audio_usecase *usecase,
-                               bool update_mixer);
+                        struct audio_usecase *usecase);
 int disable_snd_device(struct audio_device *adev,
-                              snd_device_t snd_device,
-                              bool update_mixer);
+                       snd_device_t snd_device);
 int enable_snd_device(struct audio_device *adev,
-                             snd_device_t snd_device,
-                             bool update_mixer);
+                      snd_device_t snd_device);
+
 int enable_audio_route(struct audio_device *adev,
-                              struct audio_usecase *usecase,
-                              bool update_mixer);
+                       struct audio_usecase *usecase);
+
 struct audio_usecase *get_usecase_from_list(struct audio_device *adev,
                                                    audio_usecase_t uc_id);
 
diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index c6ba144..4a4e408 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -1634,9 +1634,8 @@
         str_parms_del(parms, AUDIO_PARAMETER_KEY_BTSCO);
         my_data->btsco_sample_rate = val;
         if (val == SAMPLE_RATE_16KHZ) {
-            audio_route_apply_path(my_data->adev->audio_route,
+            audio_route_apply_and_update_path(my_data->adev->audio_route,
                                    "bt-sco-wb-samplerate");
-            audio_route_update_mixer(my_data->adev->audio_route);
         }
     }
 
diff --git a/hal/voice.c b/hal/voice.c
index ac067a3..62d01db 100644
--- a/hal/voice.c
+++ b/hal/voice.c
@@ -88,11 +88,11 @@
     }
 
     /* 2. Get and set stream specific mixer controls */
-    disable_audio_route(adev, uc_info, true);
+    disable_audio_route(adev, uc_info);
 
     /* 3. Disable the rx and tx devices */
-    disable_snd_device(adev, uc_info->out_snd_device, false);
-    disable_snd_device(adev, uc_info->in_snd_device, true);
+    disable_snd_device(adev, uc_info->out_snd_device);
+    disable_snd_device(adev, uc_info->in_snd_device);
 
     list_remove(&uc_info->list);
     free(uc_info);
diff --git a/hal/voice_extn/compress_voip.c b/hal/voice_extn/compress_voip.c
index 47ac2c8..deb3172 100644
--- a/hal/voice_extn/compress_voip.c
+++ b/hal/voice_extn/compress_voip.c
@@ -305,11 +305,11 @@
         }
 
         /* 2. Get and set stream specific mixer controls */
-        disable_audio_route(adev, uc_info, true);
+        disable_audio_route(adev, uc_info);
 
         /* 3. Disable the rx and tx devices */
-        disable_snd_device(adev, uc_info->out_snd_device, false);
-        disable_snd_device(adev, uc_info->in_snd_device, true);
+        disable_snd_device(adev, uc_info->out_snd_device);
+        disable_snd_device(adev, uc_info->in_snd_device);
 
         list_remove(&uc_info->list);
         free(uc_info);