diff --git a/src/uniwill_interfaces.h b/src/uniwill_interfaces.h
index ceba580..9273da7 100644
--- a/src/uniwill_interfaces.h
+++ b/src/uniwill_interfaces.h
@@ -64,6 +64,7 @@ typedef void (uniwill_event_callb_t)(u32);
 #define UW_EC_REG_BAREBONE_ID_VALUE_PH6TRX1		0x15
 #define UW_EC_REG_BAREBONE_ID_VALUE_PH6TQxx		0x16
 #define UW_EC_REG_BAREBONE_ID_VALUE_PH4Axxx		0x17
+#define UW_EC_REG_BAREBONE_ID_VALUE_PH4Pxxx		0x18
 
 #define UW_EC_REG_FEATURES_0				0x0765
 #define UW_EC_REG_FEATURES_1				0x0766
diff --git a/src/uniwill_leds.h b/src/uniwill_leds.h
index 26b2b17..d08efc7 100644
--- a/src/uniwill_leds.h
+++ b/src/uniwill_leds.h
@@ -188,7 +188,8 @@ int uniwill_leds_init_early(struct platform_device *dev)
 	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH4TQx1 ||
 	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH6TRX1 ||
 	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH6TQxx ||
-	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH4Axxx) {
+	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH4Axxx ||
+	    data == UW_EC_REG_BAREBONE_ID_VALUE_PH4Pxxx) {
 		ret = uniwill_read_ec_ram(UW_EC_REG_KBD_BL_STATUS, &data);
 		if (ret) {
 			pr_err("Reading keyboard backlight status failed.\n");