diff --git a/target/linux/realtek/rtl838x/config-6.6 b/target/linux/realtek/rtl838x/config-6.6
index 9ac001b0d2..a9d406f98d 100644
--- a/target/linux/realtek/rtl838x/config-6.6
+++ b/target/linux/realtek/rtl838x/config-6.6
@@ -208,6 +208,7 @@ CONFIG_RATIONAL=y
 CONFIG_REALTEK_OTTO_TIMER=y
 CONFIG_REALTEK_OTTO_WDT=y
 CONFIG_REALTEK_PHY=y
+CONFIG_REALTEK_PHY_HWMON=y
 CONFIG_REALTEK_SOC_PHY=y
 CONFIG_REALTEK_THERMAL=y
 CONFIG_REGMAP=y
diff --git a/target/linux/realtek/rtl839x/config-6.6 b/target/linux/realtek/rtl839x/config-6.6
index 594514914d..7ea9f707cb 100644
--- a/target/linux/realtek/rtl839x/config-6.6
+++ b/target/linux/realtek/rtl839x/config-6.6
@@ -216,6 +216,7 @@ CONFIG_RATIONAL=y
 CONFIG_REALTEK_OTTO_TIMER=y
 CONFIG_REALTEK_OTTO_WDT=y
 CONFIG_REALTEK_PHY=y
+CONFIG_REALTEK_PHY_HWMON=y
 CONFIG_REALTEK_SOC_PHY=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_I2C=y
diff --git a/target/linux/realtek/rtl930x/config-6.6 b/target/linux/realtek/rtl930x/config-6.6
index 497ca59ff5..772240e4fc 100644
--- a/target/linux/realtek/rtl930x/config-6.6
+++ b/target/linux/realtek/rtl930x/config-6.6
@@ -186,6 +186,7 @@ CONFIG_RATIONAL=y
 CONFIG_REALTEK_OTTO_TIMER=y
 CONFIG_REALTEK_OTTO_WDT=y
 CONFIG_REALTEK_PHY=y
+CONFIG_REALTEK_PHY_HWMON=y
 CONFIG_REALTEK_SOC_PHY=y
 CONFIG_REALTEK_THERMAL=y
 CONFIG_REGMAP=y