diff --git a/target/linux/realtek/rtl838x/config-6.6 b/target/linux/realtek/rtl838x/config-6.6
index 274073fd63..c93a8c7878 100644
--- a/target/linux/realtek/rtl838x/config-6.6
+++ b/target/linux/realtek/rtl838x/config-6.6
@@ -193,6 +193,7 @@ 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/rtl839x/config-6.6 b/target/linux/realtek/rtl839x/config-6.6
index f29533dab5..e10730ac87 100644
--- a/target/linux/realtek/rtl839x/config-6.6
+++ b/target/linux/realtek/rtl839x/config-6.6
@@ -201,6 +201,7 @@ 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 2d46945991..c0f3b39c41 100644
--- a/target/linux/realtek/rtl930x/config-6.6
+++ b/target/linux/realtek/rtl930x/config-6.6
@@ -167,6 +167,7 @@ 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