diff --git a/audio/aidl/default/alsa/Utils.cpp b/audio/aidl/default/alsa/Utils.cpp
index c08836c..8eaf162 100644
--- a/audio/aidl/default/alsa/Utils.cpp
+++ b/audio/aidl/default/alsa/Utils.cpp
@@ -80,11 +80,8 @@
 
 const AudioChannelCountToMaskMap& getSupportedChannelOutLayoutMap() {
     static const std::set<AudioChannelLayout> supportedOutChannelLayouts = {
-            DEFINE_CHANNEL_LAYOUT_MASK(MONO),          DEFINE_CHANNEL_LAYOUT_MASK(STEREO),
-            DEFINE_CHANNEL_LAYOUT_MASK(2POINT1),       DEFINE_CHANNEL_LAYOUT_MASK(QUAD),
-            DEFINE_CHANNEL_LAYOUT_MASK(PENTA),         DEFINE_CHANNEL_LAYOUT_MASK(5POINT1),
-            DEFINE_CHANNEL_LAYOUT_MASK(6POINT1),       DEFINE_CHANNEL_LAYOUT_MASK(7POINT1),
-            DEFINE_CHANNEL_LAYOUT_MASK(7POINT1POINT4), DEFINE_CHANNEL_LAYOUT_MASK(22POINT2),
+            DEFINE_CHANNEL_LAYOUT_MASK(MONO),
+            DEFINE_CHANNEL_LAYOUT_MASK(STEREO),
     };
     static const AudioChannelCountToMaskMap outLayouts =
             make_ChannelCountToMaskMap(supportedOutChannelLayouts);
diff --git a/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp b/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
index ca3f91a..a266b54 100644
--- a/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
+++ b/audio/aidl/default/r_submix/StreamRemoteSubmix.cpp
@@ -285,9 +285,12 @@
     char* buff = (char*)buffer;
     size_t actuallyRead = 0;
     long remainingFrames = frameCount;
-    const int64_t deadlineTimeNs =
-            ::android::uptimeNanos() +
-            getDelayInUsForFrameCount(frameCount) * NANOS_PER_MICROSECOND / 2;
+    // Try to wait as long as possible for the audio duration, but leave some time for the call to
+    // 'transfer' to complete. 'kReadAttemptSleepUs' is a good constant for this purpose because it
+    // is by definition "strictly inferior" to the typical buffer duration.
+    const long durationUs =
+            std::max(0L, getDelayInUsForFrameCount(frameCount) - kReadAttemptSleepUs);
+    const int64_t deadlineTimeNs = ::android::uptimeNanos() + durationUs * NANOS_PER_MICROSECOND;
     while (remainingFrames > 0) {
         ssize_t framesRead = source->read(buff, remainingFrames);
         LOG(VERBOSE) << __func__ << ": frames read " << framesRead;
diff --git a/staging/security/see/hwcrypto/aidl/Android.bp b/staging/security/see/hwcrypto/aidl/Android.bp
index 3e7ee9e..0a7e8be 100644
--- a/staging/security/see/hwcrypto/aidl/Android.bp
+++ b/staging/security/see/hwcrypto/aidl/Android.bp
@@ -10,6 +10,8 @@
 aidl_interface {
     name: "android.hardware.security.see",
     unstable: false,
+    // TODO Remove this owner field when this interface is moved out of /staging
+    owner: "google_while_staging",
     host_supported: true,
     srcs: [
         "android/hardware/security/see/hwcrypto/*.aidl",