diff --git a/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon/0002-Add-power-on-monitor-mechanism.patch b/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon/0002-Add-power-on-monitor-mechanism.patch
deleted file mode 100644
index a3718ea..0000000
--- a/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon/0002-Add-power-on-monitor-mechanism.patch
+++ /dev/null
@@ -1,269 +0,0 @@
-From 5cea18ba476c0cb6ea622be50a09ead00cd47b14 Mon Sep 17 00:00:00 2001
-From: Ivan Li <rli11@lenovo.com>
-Date: Wed, 25 Dec 2019 17:05:00 +0800
-Subject: [PATCH] Add power on monitor mechanism
-
-Summary:
-1. Add "PWRONMON" attribute in sensor configuration file to determine whether it's power-on monitor sensor or not.  (i.e. PWRONMON_temp1 = "ON")
-2. Watching "CurrentHostState" property and then use it to turn on/off threshold alert for power-on monitor sensors.
-
-Test Plan:
-Check if there is any abnormal threshold events occurred in power off state or during power transition
-
-Signed-off-by: Ivan Li <rli11@lenovo.com>
-Change-Id: I76d3a664153141d94636e0011f3a48e4f6dee922
----
- mainloop.cpp   | 102 +++++++++++++++++++++++++++++++++++++++++++++++++
- sensor.cpp     |  11 +++++-
- sensor.hpp     |  13 +++++++
- thresholds.hpp |  24 ------------
- 4 files changed, 125 insertions(+), 25 deletions(-)
-
-diff --git a/mainloop.cpp b/mainloop.cpp
-index 29dc26a..5e27a30 100644
---- a/mainloop.cpp
-+++ b/mainloop.cpp
-@@ -42,6 +42,13 @@
- #include <string>
- #include <unordered_set>
- #include <xyz/openbmc_project/Sensor/Device/error.hpp>
-+#include <boost/asio/io_service.hpp>
-+#include <boost/container/flat_map.hpp>
-+#include <boost/algorithm/string/predicate.hpp>
-+#include <sdbusplus/asio/connection.hpp>
-+#include <sdbusplus/asio/object_server.hpp>
-+#include <sdbusplus/message/types.hpp>
-+#include <sdbusplus/timer.hpp>
- 
- using namespace phosphor::logging;
- 
-@@ -110,6 +117,12 @@ decltype(Thresholds<CriticalObject>::deassertHighSignal)
-     Thresholds<CriticalObject>::deassertHighSignal =
-         &CriticalObject::criticalHighAlarmDeasserted;
- 
-+static std::unique_ptr<phosphor::Timer> cacheTimer = nullptr;
-+static std::unique_ptr<sdbusplus::bus::match::match> powerMatch = nullptr;
-+static bool powerStatusOn = false;
-+static boost::asio::io_service io;
-+static auto conn = std::make_shared<sdbusplus::asio::connection>(io);
-+
- void updateSensorInterfaces(InterfaceMap& ifaces, SensorValueType value)
- {
-     for (auto& iface : ifaces)
-@@ -137,6 +150,83 @@ void updateSensorInterfaces(InterfaceMap& ifaces, SensorValueType value)
-     }
- }
- 
-+void powerStatusSet()
-+{
-+    powerStatusOn = true;
-+    return;
-+}
-+
-+void createTimer()
-+{
-+    if (cacheTimer == nullptr)
-+    {
-+        cacheTimer = std::make_unique<phosphor::Timer>(powerStatusSet);
-+    }
-+}
-+
-+bool isPowerOn(void)
-+{
-+    if (!powerMatch)
-+    {
-+        throw std::runtime_error("Power Match Not Created");
-+    }
-+    return powerStatusOn;
-+}
-+
-+void setupPowerMatch(sdbusplus::bus::bus& bus)
-+{
-+    if (powerMatch)
-+    {
-+        return;
-+    }
-+
-+    powerMatch = std::make_unique<sdbusplus::bus::match::match>(
-+        bus,
-+        "type='signal',interface='org.freedesktop.DBus.Properties',path='/xyz/"
-+        "openbmc_project/state/"
-+        "host0',arg0='xyz.openbmc_project.State.Host'",
-+       [](sdbusplus::message::message& message) {
-+            std::string objectName;
-+            boost::container::flat_map<std::string, std::variant<std::string>>
-+                values;
-+           message.read(objectName, values);
-+           auto findState = values.find("CurrentHostState");
-+           if (findState != values.end())
-+           {
-+               bool on = boost::ends_with(
-+                    std::get<std::string>(findState->second), "Running");
-+               if (!on)
-+                {
-+                   cacheTimer->stop();
-+                    powerStatusOn = false;
-+                    return;
-+                }
-+               cacheTimer->start(std::chrono::duration_cast<std::chrono::microseconds>(
-+                    std::chrono::seconds(10)));
-+           }
-+           else {
-+               powerStatusOn = false;
-+            }
-+       });
-+
-+    conn->async_method_call(
-+        [](boost::system::error_code ec,
-+           const std::variant<std::string>& state) {
-+            if (ec)
-+            {
-+                return;
-+            }
-+            powerStatusOn =
-+                boost::ends_with(std::get<std::string>(state), "Running");
-+        },
-+        "xyz.openbmc_project.State.Host",
-+       "/xyz/openbmc_project/state/host0",
-+       "org.freedesktop.DBus.Properties", "Get",
-+        "xyz.openbmc_project.State.Host", "CurrentHostState");
-+
-+    createTimer();
-+}
-+
- std::string MainLoop::getID(SensorSet::container_t::const_reference sensor)
- {
-     std::string id;
-@@ -418,6 +508,7 @@ void MainLoop::init()
-             _interval = std::strtoull(interval.c_str(), NULL, 10);
-         }
-     }
-+    setupPowerMatch(_bus);
- }
- 
- void MainLoop::read()
-@@ -462,6 +553,12 @@ void MainLoop::read()
- 
-         try
-         {
-+            if(sensor->pwrOnMonitor() && !isPowerOn())
-+            {
-+                statusIface->functional(false);
-+                continue;
-+            }
-+
-             if (sensor->hasFaultFile())
-             {
-                 auto fault = _ioAccess->read(sensorSysfsType, sensorSysfsNum,
-@@ -588,6 +685,11 @@ void MainLoop::read()
-                 }
-             }
- 
-+            if(sensor->pwrOnMonitor() && !isPowerOn())
-+            {
-+                statusIface->functional(false);
-+                continue;
-+            }
-             updateSensorInterfaces(obj, value);
-         }
-         catch (const std::system_error& e)
-diff --git a/sensor.cpp b/sensor.cpp
-index ac2f896..72b45f8 100644
---- a/sensor.cpp
-+++ b/sensor.cpp
-@@ -32,7 +32,7 @@ Sensor::Sensor(const SensorSet::key_type& sensor,
-                const hwmonio::HwmonIOInterface* ioAccess,
-                const std::string& devPath) :
-     _sensor(sensor),
--    _ioAccess(ioAccess), _devPath(devPath), _scale(0), _hasFaultFile(false)
-+    _ioAccess(ioAccess), _devPath(devPath), _scale(0), _hasFaultFile(false), _pwrOnMonitor(false)
- {
-     auto chip = env::getEnv("GPIOCHIP", sensor);
-     auto access = env::getEnv("GPIO", sensor);
-@@ -61,6 +61,15 @@ Sensor::Sensor(const SensorSet::key_type& sensor,
-     auto senRmRCs = env::getEnv("REMOVERCS", sensor);
-     // Add sensor removal return codes defined per sensor
-     addRemoveRCs(senRmRCs);
-+
-+    auto pwrOnMon = env::getEnv("PWRONMON", sensor);
-+    if (!pwrOnMon.empty())
-+    {
-+        if (pwrOnMon == "ON")
-+        {
-+            _pwrOnMonitor = true;
-+        }
-+    }
- }
- 
- void Sensor::addRemoveRCs(const std::string& rcList)
-diff --git a/sensor.hpp b/sensor.hpp
-index 64d6e48..41c0fe7 100644
---- a/sensor.hpp
-+++ b/sensor.hpp
-@@ -151,6 +151,16 @@ class Sensor
-         return _hasFaultFile;
-     }
- 
-+    /**
-+     * @brief Get whether the sensor only need to be monitored in power on state or not.
-+     *
-+     * @return - Boolean on whether the sensor only need to be monitored in power on state
-+     */
-+    inline bool pwrOnMonitor(void) const
-+    {
-+        return _pwrOnMonitor;
-+    }
-+
-   private:
-     /** @brief Sensor object's identifiers */
-     SensorSet::key_type _sensor;
-@@ -172,6 +182,9 @@ class Sensor
- 
-     /** @brief Tracks whether the sensor has a fault file or not. */
-     bool _hasFaultFile;
-+
-+    /** @brief Whether the sensor only need to be monitored in power on state or not. */
-+    bool _pwrOnMonitor;
- };
- 
- /**
-diff --git a/thresholds.hpp b/thresholds.hpp
-index 8d557fc..0ffe0ce 100644
---- a/thresholds.hpp
-+++ b/thresholds.hpp
-@@ -137,32 +137,8 @@ auto addThreshold(const std::string& sensorType, const std::string& sensorID,
-         auto hi = stod(tHi) * std::pow(10, scale);
-         (*iface.*Thresholds<T>::setLo)(lo);
-         (*iface.*Thresholds<T>::setHi)(hi);
--        auto alarmLowState = (*iface.*Thresholds<T>::getAlarmLow)();
--        auto alarmHighState = (*iface.*Thresholds<T>::getAlarmHigh)();
-         (*iface.*Thresholds<T>::alarmLo)(value <= lo);
-         (*iface.*Thresholds<T>::alarmHi)(value >= hi);
--        if (alarmLowState != (value <= lo))
--        {
--            if (value <= lo)
--            {
--                (*iface.*Thresholds<T>::assertLowSignal)(value);
--            }
--            else
--            {
--                (*iface.*Thresholds<T>::deassertLowSignal)(value);
--            }
--        }
--        if (alarmHighState != (value >= hi))
--        {
--            if (value >= hi)
--            {
--                (*iface.*Thresholds<T>::assertHighSignal)(value);
--            }
--            else
--            {
--                (*iface.*Thresholds<T>::deassertHighSignal)(value);
--            }
--        }
-         auto type = Thresholds<T>::type;
-         obj[type] = iface;
-     }
--- 
-2.21.0
-
diff --git a/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend b/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
index 8f3f07f..7307de7 100644
--- a/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
+++ b/meta-quanta/meta-gbs/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
@@ -1,8 +1,5 @@
 FILESEXTRAPATHS_prepend_gbs := "${THISDIR}/${PN}:"
 
-SRC_URI_append_gbs = " file://0002-Add-power-on-monitor-mechanism.patch \
-                     "
-
 DEPENDS += "boost"
 
 GBS_NAMES = " \