diff --git a/src/mainboard/google/brya/variants/pirrha/overridetree.cb b/src/mainboard/google/brya/variants/pirrha/overridetree.cb
index 81e6edb9f5..6ba61418c0 100644
--- a/src/mainboard/google/brya/variants/pirrha/overridetree.cb
+++ b/src/mainboard/google/brya/variants/pirrha/overridetree.cb
@@ -210,6 +210,7 @@ chip soc/intel/alderlake
 				register "options.tsr[0].desc" = ""Memory""
 				register "options.tsr[1].desc" = ""Charger""
 				register "options.tsr[2].desc" = ""Ambient""
+				register "options.tsr[3].desc" = ""Sub Charger""
 
 				# TODO: below values are initial reference values only
 				## Passive Policy
@@ -218,6 +219,7 @@ chip soc/intel/alderlake
 					[1] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_0, 75, 5000),
 					[2] = DPTF_PASSIVE(CHARGER,     TEMP_SENSOR_1, 75, 5000),
 					[3] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_2, 75, 5000),
+					[3] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_3, 75, 5000),
 				}"
 
 				## Critical Policy
@@ -226,6 +228,7 @@ chip soc/intel/alderlake
 					[1] = DPTF_CRITICAL(TEMP_SENSOR_0,      85, SHUTDOWN),
 					[2] = DPTF_CRITICAL(TEMP_SENSOR_1,      85, SHUTDOWN),
 					[3] = DPTF_CRITICAL(TEMP_SENSOR_2,      85, SHUTDOWN),
+					[4] = DPTF_CRITICAL(TEMP_SENSOR_3,      85, SHUTDOWN),
 				}"
 
 				register "controls.power_limits" = "{