Bias voltage thresholds (#907)

* Initial commit for bias and voltage thresholds
* Specify that the thresholds are compared against the instant parameter of the measured value

release/models/platform/openconfig-platform-transceiver.yang

@@ -66,7 +66,13 @@ module openconfig-platform-transceiver {
       specify a physical-channel within a TRANSCEIVER component
       (i.e. gray optic) that it is associated with.";
 
-  oc-ext:openconfig-version "0.11.0";
+  oc-ext:openconfig-version "0.12.0";
+
+  revision "2023-06-27" {
+    description
+      "Add tx bias and voltage thresholds";
+    reference "0.12.0";
+  }
 
   revision "2023-05-03" {
     description
@@ -439,7 +445,9 @@ module openconfig-platform-transceiver {
 
     container thresholds {
       description
-        "Enclosing container for transceiver alarm thresholds.";
+        "Enclosing container for transceiver alarm thresholds.
+        Each threshold is compared to the instant value of the
+        measured parameter corresponding to the threshold";
 
       list threshold {
         key "severity";
@@ -803,6 +811,38 @@ module openconfig-platform-transceiver {
       description
         "The lower power threshold for the laser input power.";
     }
+    leaf laser-bias-current-upper{
+      description
+        "The upper threshold for the laser bias current.";
+      type decimal64 {
+        fraction-digits 2;
+      }
+      units mA;
+    }
+    leaf laser-bias-current-lower{
+      description
+        "The lower threshold for the laser bias current.";
+      type decimal64 {
+        fraction-digits 2;
+      }
+      units mA;
+    }
+    leaf supply-voltage-upper{
+      description
+        "The upper threshold for the transceiver supply voltage.";
+      type decimal64 {
+        fraction-digits 2;
+      }
+      units volts;
+    }
+    leaf supply-voltage-lower{
+      description
+        "The lower threshold for the transceiver supply voltage.";
+      type decimal64 {
+        fraction-digits 2;
+      }
+      units volts;
+    }
   }
 
   grouping port-transceiver-top {