diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index e661a3b..6b23e56 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -53,8 +53,6 @@
 
 #include <powermanager/PowerManager.h>
 
-#include <hardware/audio.h>  // for AUDIO_DEVICE_API_VERSION_...
-
 #include "AudioFlinger.h"
 #include "AudioMixer.h"
 #include "BufferProviders.h"
@@ -3492,7 +3490,7 @@
     mOutDevice = type;
     mPatch = *patch;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
         sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
         status = hwDevice->createAudioPatch(patch->num_sources,
                                             patch->sources,
@@ -3542,7 +3540,7 @@
 
     mOutDevice = AUDIO_DEVICE_NONE;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
         sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
         status = hwDevice->releaseAudioPatch(handle);
     } else {
@@ -7612,7 +7610,7 @@
         }
     }
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+    if (mInput->audioHwDev->supportsAudioPatches()) {
         sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
         status = hwDevice->createAudioPatch(patch->num_sources,
                                             patch->sources,
@@ -7652,7 +7650,7 @@
 
     mInDevice = AUDIO_DEVICE_NONE;
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+    if (mInput->audioHwDev->supportsAudioPatches()) {
         sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
         status = hwDevice->releaseAudioPatch(handle);
     } else {