diff --git a/arch/arm/configs/rockchip_defconfig b/arch/arm/configs/rockchip_defconfig
index 55046b5dc27d..fa47b6ede65e 100644
--- a/arch/arm/configs/rockchip_defconfig
+++ b/arch/arm/configs/rockchip_defconfig
@@ -193,6 +193,7 @@ CONFIG_CFG80211=y
 CONFIG_NL80211_TESTMODE=y
 CONFIG_CFG80211_WEXT=y
 CONFIG_RFKILL=y
+CONFIG_DEVTMPFS=y
 CONFIG_CMA=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_UID_STAT=y