diff --git a/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/HpdSignal.aidl b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/HpdSignal.aidl
new file mode 100644
index 0000000..eef4025
--- /dev/null
+++ b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/HpdSignal.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.tv.hdmi;
+@Backing(type="byte") @VintfStability
+enum HpdSignal {
+  HDMI_HPD_PHYSICAL = 0,
+  HDMI_HPD_STATUS_BIT = 1,
+}
diff --git a/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/IHdmi.aidl b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/IHdmi.aidl
index 3fc7f41..809d392 100644
--- a/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/IHdmi.aidl
+++ b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/IHdmi.aidl
@@ -37,4 +37,6 @@
   android.hardware.tv.hdmi.HdmiPortInfo[] getPortInfo();
   boolean isConnected(in int portId);
   void setCallback(in android.hardware.tv.hdmi.IHdmiCallback callback);
+  void setHpdSignal(android.hardware.tv.hdmi.HpdSignal signal);
+  android.hardware.tv.hdmi.HpdSignal getHpdSignal();
 }
diff --git a/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/Result.aidl b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/Result.aidl
new file mode 100644
index 0000000..b6b0eb3
--- /dev/null
+++ b/tv/hdmi/aidl/aidl_api/android.hardware.tv.hdmi/current/android/hardware/tv/hdmi/Result.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.tv.hdmi;
+@VintfStability
+enum Result {
+  SUCCESS = 0,
+  FAILURE_UNKNOWN = 1,
+  FAILURE_INVALID_ARGS = 2,
+  FAILURE_INVALID_STATE = 3,
+  FAILURE_NOT_SUPPORTED = 4,
+}
diff --git a/tv/hdmi/aidl/android/hardware/tv/hdmi/HpdSignal.aidl b/tv/hdmi/aidl/android/hardware/tv/hdmi/HpdSignal.aidl
new file mode 100644
index 0000000..05963f2
--- /dev/null
+++ b/tv/hdmi/aidl/android/hardware/tv/hdmi/HpdSignal.aidl
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.hdmi;
+
+/**
+ * HPD (Hotplug Detection) Signal Types
+ */
+@VintfStability
+@Backing(type="byte")
+enum HpdSignal {
+    HDMI_HPD_PHYSICAL = 0,
+    HDMI_HPD_STATUS_BIT = 1,
+}
diff --git a/tv/hdmi/aidl/android/hardware/tv/hdmi/IHdmi.aidl b/tv/hdmi/aidl/android/hardware/tv/hdmi/IHdmi.aidl
index 5536846..457234d 100644
--- a/tv/hdmi/aidl/android/hardware/tv/hdmi/IHdmi.aidl
+++ b/tv/hdmi/aidl/android/hardware/tv/hdmi/IHdmi.aidl
@@ -17,6 +17,7 @@
 package android.hardware.tv.hdmi;
 
 import android.hardware.tv.hdmi.HdmiPortInfo;
+import android.hardware.tv.hdmi.HpdSignal;
 import android.hardware.tv.hdmi.IHdmiCallback;
 
 /**
@@ -48,4 +49,17 @@
      *        setCallback(null) should deregister the callback.
      */
     void setCallback(in IHdmiCallback callback);
+
+    /**
+     * Method to set the HPD (Hot Plug Detection) signal the HAL should use for HPD signaling (e.g.
+     * signaling EDID updates). By default, the HAL will use {@code HDMI_HPD_PHYSICAL} (the physical
+     * hotplug signal). When set to {@code HDMI_HPD_STATUS_BIT} the HAL should use the HDP status
+     * bit.
+     */
+    void setHpdSignal(HpdSignal signal);
+
+    /**
+     * Get the current signal the HAL is using for HPD
+     */
+    HpdSignal getHpdSignal();
 }
diff --git a/tv/hdmi/aidl/android/hardware/tv/hdmi/Result.aidl b/tv/hdmi/aidl/android/hardware/tv/hdmi/Result.aidl
new file mode 100644
index 0000000..d2a1fef
--- /dev/null
+++ b/tv/hdmi/aidl/android/hardware/tv/hdmi/Result.aidl
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.tv.hdmi;
+
+/**
+ * Result enum for return values. Used by the HDMI related AIDL.
+ */
+@VintfStability
+enum Result {
+    /**
+     * The HPD Signal type was set successfully.
+     */
+    SUCCESS = 0,
+
+    /**
+     * The HPD Signal type could not be set because of an unknown failure.
+     */
+    FAILURE_UNKNOWN = 1,
+
+    /**
+     * The HPD Signal type could not be set because the arguments were invalid.
+     */
+    FAILURE_INVALID_ARGS = 2,
+
+    /**
+     * The HPD Signal type could not be set because the HAL is in an invalid state.
+     */
+    FAILURE_INVALID_STATE = 3,
+
+    /**
+     * The HPD Signal type could not be set as the signal type is not supported.
+     */
+    FAILURE_NOT_SUPPORTED = 4,
+}
diff --git a/tv/hdmi/aidl/default/HdmiMock.cpp b/tv/hdmi/aidl/default/HdmiMock.cpp
index bbc4705..7cd9bb7 100644
--- a/tv/hdmi/aidl/default/HdmiMock.cpp
+++ b/tv/hdmi/aidl/default/HdmiMock.cpp
@@ -67,6 +67,21 @@
     return ScopedAStatus::ok();
 }
 
+ScopedAStatus HdmiMock::setHpdSignal(HpdSignal signal) {
+    if (mHdmiThreadRun) {
+        mHpdSignal = signal;
+        return ScopedAStatus::ok();
+    } else {
+        return ScopedAStatus::fromServiceSpecificError(
+                static_cast<int32_t>(Result::FAILURE_INVALID_STATE));
+    }
+}
+
+ScopedAStatus HdmiMock::getHpdSignal(HpdSignal* _aidl_return) {
+    *_aidl_return = mHpdSignal;
+    return ScopedAStatus::ok();
+}
+
 void* HdmiMock::__threadLoop(void* user) {
     HdmiMock* const self = static_cast<HdmiMock*>(user);
     self->threadLoop();
diff --git a/tv/hdmi/aidl/default/HdmiMock.h b/tv/hdmi/aidl/default/HdmiMock.h
index 05795dd..51abaff 100644
--- a/tv/hdmi/aidl/default/HdmiMock.h
+++ b/tv/hdmi/aidl/default/HdmiMock.h
@@ -15,6 +15,7 @@
  */
 
 #include <aidl/android/hardware/tv/hdmi/BnHdmi.h>
+#include <aidl/android/hardware/tv/hdmi/Result.h>
 #include <algorithm>
 #include <vector>
 
@@ -29,8 +30,10 @@
 using ::aidl::android::hardware::tv::hdmi::BnHdmi;
 using ::aidl::android::hardware::tv::hdmi::HdmiPortInfo;
 using ::aidl::android::hardware::tv::hdmi::HdmiPortType;
+using ::aidl::android::hardware::tv::hdmi::HpdSignal;
 using ::aidl::android::hardware::tv::hdmi::IHdmi;
 using ::aidl::android::hardware::tv::hdmi::IHdmiCallback;
+using ::aidl::android::hardware::tv::hdmi::Result;
 
 #define HDMI_MSG_IN_FIFO "/dev/hdmi_in_pipe"
 #define MESSAGE_BODY_MAX_LENGTH 4
@@ -41,6 +44,8 @@
     ::ndk::ScopedAStatus getPortInfo(std::vector<HdmiPortInfo>* _aidl_return) override;
     ::ndk::ScopedAStatus isConnected(int32_t portId, bool* _aidl_return) override;
     ::ndk::ScopedAStatus setCallback(const std::shared_ptr<IHdmiCallback>& callback) override;
+    ::ndk::ScopedAStatus setHpdSignal(HpdSignal signal) override;
+    ::ndk::ScopedAStatus getHpdSignal(HpdSignal* _aidl_return) override;
 
     void printEventBuf(const char* msg_buf, int len);
 
@@ -62,6 +67,9 @@
     uint16_t mPhysicalAddress = 0xFFFF;
     int mTotalPorts = 1;
 
+    // HPD Signal being used
+    HpdSignal mHpdSignal = HpdSignal::HDMI_HPD_PHYSICAL;
+
     // Testing variables
     // Input file descriptor
     int mInputFile;
diff --git a/tv/hdmi/aidl/vts/functional/VtsHalTvHdmiAidlTargetTest.cpp b/tv/hdmi/aidl/vts/functional/VtsHalTvHdmiAidlTargetTest.cpp
index 78c2590..fd4d94f 100644
--- a/tv/hdmi/aidl/vts/functional/VtsHalTvHdmiAidlTargetTest.cpp
+++ b/tv/hdmi/aidl/vts/functional/VtsHalTvHdmiAidlTargetTest.cpp
@@ -31,6 +31,7 @@
 using ::aidl::android::hardware::tv::hdmi::BnHdmiCallback;
 using ::aidl::android::hardware::tv::hdmi::HdmiPortInfo;
 using ::aidl::android::hardware::tv::hdmi::HdmiPortType;
+using ::aidl::android::hardware::tv::hdmi::HpdSignal;
 using ::aidl::android::hardware::tv::hdmi::IHdmi;
 using ::aidl::android::hardware::tv::hdmi::IHdmiCallback;
 using ::ndk::SpAIBinder;
@@ -101,3 +102,18 @@
         ASSERT_TRUE(hdmi->isConnected(ports[i].portId, &connected).isOk());
     }
 }
+
+TEST_P(HdmiTest, HdpSignal) {
+    HpdSignal originalSignal;
+    HpdSignal signal = HpdSignal::HDMI_HPD_STATUS_BIT;
+    HpdSignal readSignal;
+    ASSERT_TRUE(hdmi->getHpdSignal(&originalSignal).isOk());
+    ASSERT_TRUE(hdmi->setHpdSignal(signal).isOk());
+    ASSERT_TRUE(hdmi->getHpdSignal(&readSignal).isOk());
+    EXPECT_EQ(readSignal, signal);
+    signal = HpdSignal::HDMI_HPD_PHYSICAL;
+    ASSERT_TRUE(hdmi->setHpdSignal(signal).isOk());
+    ASSERT_TRUE(hdmi->getHpdSignal(&readSignal).isOk());
+    EXPECT_EQ(readSignal, signal);
+    ASSERT_TRUE(hdmi->setHpdSignal(originalSignal).isOk());
+}