diff --git a/plat/rockchip/rk3399/drivers/dram/dfs.c b/plat/rockchip/rk3399/drivers/dram/dfs.c
index 481dcc6..d629e4b 100644
--- a/plat/rockchip/rk3399/drivers/dram/dfs.c
+++ b/plat/rockchip/rk3399/drivers/dram/dfs.c
@@ -6,17 +6,16 @@
 
 #include <arch_helpers.h>
 #include <debug.h>
-#include <mmio.h>
+#include <delay_timer.h>
 #include <m0_ctl.h>
+#include <mmio.h>
 #include <plat_private.h>
 #include "dfs.h"
 #include "dram.h"
 #include "dram_spec_timing.h"
-#include "string.h"
-#include "soc.h"
 #include "pmu.h"
-
-#include <delay_timer.h>
+#include "soc.h"
+#include "string.h"
 
 #define ENPER_CS_TRAINING_FREQ	(666)
 #define TDFI_LAT_THRESHOLD_FREQ	(928)
diff --git a/plat/rockchip/rk3399/drivers/dram/dram.c b/plat/rockchip/rk3399/drivers/dram/dram.c
index ad79f9e..42b6294 100644
--- a/plat/rockchip/rk3399/drivers/dram/dram.c
+++ b/plat/rockchip/rk3399/drivers/dram/dram.c
@@ -6,9 +6,9 @@
 
 #include <dram.h>
 #include <plat_private.h>
+#include <rk3399_def.h>
 #include <secure.h>
 #include <soc.h>
-#include <rk3399_def.h>
 
 __pmusramdata struct rk3399_sdram_params sdram_config;
 
diff --git a/plat/rockchip/rk3399/drivers/dram/dram_spec_timing.c b/plat/rockchip/rk3399/drivers/dram/dram_spec_timing.c
index a2b28b7..2e196b5 100644
--- a/plat/rockchip/rk3399/drivers/dram/dram_spec_timing.c
+++ b/plat/rockchip/rk3399/drivers/dram/dram_spec_timing.c
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <string.h>
-#include <stdint.h>
 #include <dram.h>
+#include <stdint.h>
+#include <string.h>
 #include <utils.h>
 #include "dram_spec_timing.h"
 
diff --git a/plat/rockchip/rk3399/drivers/dram/suspend.c b/plat/rockchip/rk3399/drivers/dram/suspend.c
index 617e39b..6867744 100644
--- a/plat/rockchip/rk3399/drivers/dram/suspend.c
+++ b/plat/rockchip/rk3399/drivers/dram/suspend.c
@@ -3,11 +3,12 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#include <debug.h>
+
 #include <arch_helpers.h>
-#include <platform_def.h>
-#include <plat_private.h>
+#include <debug.h>
 #include <dram.h>
+#include <plat_private.h>
+#include <platform_def.h>
 #include <pmu_regs.h>
 #include <rk3399_def.h>
 #include <secure.h>