Add psu_fan target speed

device/accton/x86_64-accton_as7726_32x-r0/platform.json

@@ -178,7 +178,7 @@
                 "name": "MB_RearMAC_temp(0x48)"
             },
             {
-                "name": "CPU Temp"
+                "name": "coretemp-isa-0000"
             }
         ],
         "sfps": [

device/accton/x86_64-accton_as7726_32x-r0/system_health_monitoring_config.json

@@ -3,9 +3,7 @@
     "devices_to_ignore": [
         "asic",
         "psu.voltage",
-        "psu.temperature",
-        "PSU-1 FAN-1.speed",
-        "PSU-2 FAN-1.speed"
+        "psu.temperature"
     ],
     "user_defined_checkers": [],
     "polling_interval": 60,

platform/broadcom/sonic-platform-modules-accton/as7726-32x/sonic_platform/chassis.py

@@ -85,7 +85,7 @@ class Chassis(PddfChassis):
             sys.stderr.write("SFP index {} out of range (1-{})\n".format(
                              index, len(self._sfp_list)))
         return sfp
-  
+
     def initizalize_system_led(self):
         return
 
@@ -101,3 +101,32 @@ class Chassis(PddfChassis):
             return SfpBase.SFP_PORT_TYPE_BIT_QSFP | SfpBase.SFP_PORT_TYPE_BIT_QSFP_PLUS | SfpBase.SFP_PORT_TYPE_BIT_QSFP28
         else:
             return SfpBase.SFP_PORT_TYPE_BIT_SFP | SfpBase.SFP_PORT_TYPE_BIT_SFP_PLUS
+
+    def get_position_in_parent(self):
+        """
+        Retrieves 1-based relative physical position in parent device.
+        If the agent cannot determine the parent-relative position
+        for some reason, or if the associated value of
+        entPhysicalContainedIn is'0', then the value '-1' is returned
+        Returns:
+            integer: The 1-based relative physical position in parent device
+            or -1 if cannot determine the position
+        """
+        return -1
+
+    def is_replaceable(self):
+        """
+        Indicate whether this device is replaceable.
+        Returns:
+            bool: True if it is replaceable.
+        """
+        return False    
+        
+    def get_revision(self):
+        """
+        Retrieves the hardware revision of the device
+
+        Returns:
+            string: Revision value of device
+        """
+        return 'N/A'

platform/broadcom/sonic-platform-modules-accton/as7726-32x/sonic_platform/fan.py

@@ -50,3 +50,16 @@ class Fan(PddfFan):
             string: Serial number of device
         """
         return "N/A"
+
+    def get_target_speed(self):
+        """
+        Retrieves the target (expected) speed of the fan
+
+        Returns:
+            An integer, the percentage of full fan speed, in the range 0 (off)
+                 to 100 (full speed)
+        """
+        if self.is_psu_fan:
+            return super().get_speed()
+        else:
+            return super().get_target_speed()