diff --git a/broadcastradio/2.0/types.hal b/broadcastradio/2.0/types.hal
index fc5809f..dacc820 100644
--- a/broadcastradio/2.0/types.hal
+++ b/broadcastradio/2.0/types.hal
@@ -86,21 +86,17 @@
      */
     RDS_REG,
 
-    /**
-     * Enables DAB implicit linking, based on program identifiers
-     * (DAB SId, RDS PI).
-     */
-    DAB_IMPLICIT_LINKING,
+    /** Enables DAB-DAB hard- and implicit-linking (the same content). */
+    DAB_DAB_LINKING,
 
-    /**
-     * Enables DAB hard linking (the same content).
-     */
-    DAB_HARD_LINKING,
+    /** Enables DAB-FM hard- and implicit-linking (the same content). */
+    DAB_FM_LINKING,
 
-    /**
-     * Enables DAB hard linking (related content).
-     */
-    DAB_SOFT_LINKING,
+    /** Enables DAB-DAB soft-linking (related content). */
+    DAB_DAB_SOFT_LINKING,
+
+    /** Enables DAB-FM soft-linking (related content). */
+    DAB_FM_SOFT_LINKING,
 };
 
 /**
diff --git a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
index d0e4144..c9e83f0 100644
--- a/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
+++ b/broadcastradio/2.0/vts/functional/VtsHalBroadcastradioV2_0TargetTest.cpp
@@ -58,9 +58,15 @@
 }  // namespace timeout
 
 static const ConfigFlag gConfigFlagValues[] = {
-    ConfigFlag::FORCE_MONO,       ConfigFlag::FORCE_ANALOG,     ConfigFlag::FORCE_DIGITAL,
-    ConfigFlag::RDS_AF,           ConfigFlag::RDS_REG,          ConfigFlag::DAB_IMPLICIT_LINKING,
-    ConfigFlag::DAB_HARD_LINKING, ConfigFlag::DAB_SOFT_LINKING,
+    ConfigFlag::FORCE_MONO,
+    ConfigFlag::FORCE_ANALOG,
+    ConfigFlag::FORCE_DIGITAL,
+    ConfigFlag::RDS_AF,
+    ConfigFlag::RDS_REG,
+    ConfigFlag::DAB_DAB_LINKING,
+    ConfigFlag::DAB_FM_LINKING,
+    ConfigFlag::DAB_DAB_SOFT_LINKING,
+    ConfigFlag::DAB_FM_SOFT_LINKING,
 };
 
 struct TunerCallbackMock : public ITunerCallback {
diff --git a/current.txt b/current.txt
index 3a9abe8..c18153a 100644
--- a/current.txt
+++ b/current.txt
@@ -190,7 +190,6 @@
 c2c50ec74c87a583c683b4493f8f9f2e454a8d41c57af5b3eb88823a999f0ea4 android.hardware.radio@1.0::IRadioResponse # Added for b/65230472 for Android O
 4922dd58e89a03181ed1c48a6e118e47633b73b11090bdfed5aa920d25a7592b android.hardware.radio@1.0::IRadioResponse # Added for b/65230472 for Android O DR
 28e929b453df3d9f5060af2764e6cdb123ddb893e3e86923c877f6ff7e5f02c9 android.hardware.wifi@1.0::types
-bfd81bcafa3c97519cd56ad29e9fa48e23d1d323b89dbcc85899282a8c628194 android.hardware.automotive.vehicle@2.0::types
 df1d7b27e644bfed0a4f606a8c44d35d45cafce82c7c648494c8a25c7cd4a949 android.hardware.wifi@1.0::types
 
 # HALs released in Android O MR1 (Initial Set)
@@ -251,7 +250,6 @@
 c8bc853546dd55584611def2a9fa1d99f657e3366c976d2f60fe6b8aa6d2cb87 android.hardware.thermal@1.1::IThermalCallback
 
 # ABI preserving changes to HALs during Android P
-d4c10cb28318dba8efb22231a8c23e86ad8853f85775187c40b42a878a5ef4d5 android.hardware.automotive.vehicle@2.0::types
 cf72ff5a52bfa4d08e9e1000cf3ab5952a2d280c7f13cdad5ab7905c08050766 android.hardware.camera.metadata@3.2::types
 6fa9804a17a8bb7923a56bd10493a5483c20007e4c9026fd04287bee7c945a8c android.hardware.gnss@1.0::IGnssCallback
 fb92e2b40f8e9d494e8fd3b4ac18499a3216342e7cff160714c3bbf3660b6e79 android.hardware.gnss@1.0::IGnssConfiguration
diff --git a/graphics/composer/2.1/default/ComposerBase.h b/graphics/composer/2.1/default/ComposerBase.h
index 85b1a4d..e1c9d33 100644
--- a/graphics/composer/2.1/default/ComposerBase.h
+++ b/graphics/composer/2.1/default/ComposerBase.h
@@ -38,6 +38,8 @@
 public:
     virtual ~ComposerBase() {};
 
+    virtual bool hasCapability(hwc2_capability_t capability) = 0;
+
     virtual void removeClient() = 0;
     virtual void enableCallback(bool enable) = 0;
     virtual uint32_t getMaxVirtualDisplayCount() = 0;
diff --git a/graphics/composer/2.1/default/ComposerClient.cpp b/graphics/composer/2.1/default/ComposerClient.cpp
index e792034..4e6dd4f 100644
--- a/graphics/composer/2.1/default/ComposerClient.cpp
+++ b/graphics/composer/2.1/default/ComposerClient.cpp
@@ -748,15 +748,17 @@
     }
 
     // First try to Present as is.
-    int presentFence = -1;
-    std::vector<Layer> layers;
-    std::vector<int> fences;
-    auto err = mHal.presentDisplay(mDisplay, &presentFence, &layers, &fences);
-    if (err == Error::NONE) {
-        mWriter.setPresentOrValidateResult(1);
-        mWriter.setPresentFence(presentFence);
-        mWriter.setReleaseFences(layers, fences);
-        return true;
+    if (mHal.hasCapability(HWC2_CAPABILITY_SKIP_VALIDATE)) {
+        int presentFence = -1;
+        std::vector<Layer> layers;
+        std::vector<int> fences;
+        auto err = mHal.presentDisplay(mDisplay, &presentFence, &layers, &fences);
+        if (err == Error::NONE) {
+            mWriter.setPresentOrValidateResult(1);
+            mWriter.setPresentFence(presentFence);
+            mWriter.setReleaseFences(layers, fences);
+            return true;
+        }
     }
 
     // Present has failed. We need to fallback to validate
@@ -766,9 +768,8 @@
     std::vector<Layer> requestedLayers;
     std::vector<uint32_t> requestMasks;
 
-    err = mHal.validateDisplay(mDisplay, &changedLayers,
-                               &compositionTypes, &displayRequestMask,
-                               &requestedLayers, &requestMasks);
+    auto err = mHal.validateDisplay(mDisplay, &changedLayers, &compositionTypes,
+                                    &displayRequestMask, &requestedLayers, &requestMasks);
     if (err == Error::NONE) {
         mWriter.setPresentOrValidateResult(0);
         mWriter.setChangedCompositionTypes(changedLayers,
diff --git a/graphics/composer/2.1/default/Hwc.cpp b/graphics/composer/2.1/default/Hwc.cpp
index fdb4af8..cb393ec 100644
--- a/graphics/composer/2.1/default/Hwc.cpp
+++ b/graphics/composer/2.1/default/Hwc.cpp
@@ -47,8 +47,7 @@
     }
 
     initCapabilities();
-    if (majorVersion >= 2 &&
-        hasCapability(Capability::PRESENT_FENCE_IS_NOT_RELIABLE)) {
+    if (majorVersion >= 2 && hasCapability(HWC2_CAPABILITY_PRESENT_FENCE_IS_NOT_RELIABLE)) {
         ALOGE("Present fence must be reliable from HWC2 on.");
         abort();
     }
@@ -114,12 +113,14 @@
     uint32_t count = 0;
     mDevice->getCapabilities(mDevice, &count, nullptr);
 
-    std::vector<Capability> caps(count);
-    mDevice->getCapabilities(mDevice, &count, reinterpret_cast<
-              std::underlying_type<Capability>::type*>(caps.data()));
+    std::vector<int32_t> caps(count);
+    mDevice->getCapabilities(mDevice, &count, caps.data());
     caps.resize(count);
 
-    mCapabilities.insert(caps.cbegin(), caps.cend());
+    mCapabilities.reserve(count);
+    for (auto cap : caps) {
+        mCapabilities.insert(static_cast<hwc2_capability_t>(cap));
+    }
 }
 
 template<typename T>
@@ -188,7 +189,7 @@
     initDispatch(HWC2_FUNCTION_SET_LAYER_PLANE_ALPHA,
             &mDispatch.setLayerPlaneAlpha);
 
-    if (hasCapability(Capability::SIDEBAND_STREAM)) {
+    if (hasCapability(HWC2_CAPABILITY_SIDEBAND_STREAM)) {
         initDispatch(HWC2_FUNCTION_SET_LAYER_SIDEBAND_STREAM,
                 &mDispatch.setLayerSidebandStream);
     }
@@ -208,15 +209,26 @@
     initDispatch(HWC2_FUNCTION_VALIDATE_DISPLAY, &mDispatch.validateDisplay);
 }
 
-bool HwcHal::hasCapability(Capability capability) const
-{
+bool HwcHal::hasCapability(hwc2_capability_t capability) {
     return (mCapabilities.count(capability) > 0);
 }
 
 Return<void> HwcHal::getCapabilities(getCapabilities_cb hidl_cb)
 {
-    std::vector<Capability> caps(
-            mCapabilities.cbegin(), mCapabilities.cend());
+    std::vector<Capability> caps;
+    caps.reserve(mCapabilities.size());
+    for (auto cap : mCapabilities) {
+        switch (cap) {
+            case HWC2_CAPABILITY_SIDEBAND_STREAM:
+            case HWC2_CAPABILITY_SKIP_CLIENT_COLOR_TRANSFORM:
+            case HWC2_CAPABILITY_PRESENT_FENCE_IS_NOT_RELIABLE:
+                caps.push_back(static_cast<Capability>(cap));
+                break;
+            default:
+                // not all HWC2 caps are defined in HIDL
+                break;
+        }
+    }
 
     hidl_vec<Capability> caps_reply;
     caps_reply.setToExternal(caps.data(), caps.size());
diff --git a/graphics/composer/2.1/default/Hwc.h b/graphics/composer/2.1/default/Hwc.h
index 32c6b0b..e3f5ce6 100644
--- a/graphics/composer/2.1/default/Hwc.h
+++ b/graphics/composer/2.1/default/Hwc.h
@@ -58,14 +58,13 @@
     HwcHal(const hw_module_t* module);
     virtual ~HwcHal();
 
-    bool hasCapability(Capability capability) const;
-
     // IComposer interface
     Return<void> getCapabilities(getCapabilities_cb hidl_cb) override;
     Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
     Return<void> createClient(createClient_cb hidl_cb) override;
 
     // ComposerBase interface
+    bool hasCapability(hwc2_capability_t capability) override;
     void removeClient() override;
     void enableCallback(bool enable) override;
     uint32_t getMaxVirtualDisplayCount() override;
@@ -168,7 +167,7 @@
 
     hwc2_device_t* mDevice;
 
-    std::unordered_set<Capability> mCapabilities;
+    std::unordered_set<hwc2_capability_t> mCapabilities;
 
     struct {
         HWC2_PFN_ACCEPT_DISPLAY_CHANGES acceptDisplayChanges;