Standardise header guards across codebase

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

53 files changed, 163 insertions, 166 deletions

diff --git a/drivers/arm/ccn/ccn_private.h b/drivers/arm/ccn/ccn_private.h
index c17c27425..8a936d976 100644
--- a/drivers/arm/ccn/ccn_private.h
+++ b/drivers/arm/ccn/ccn_private.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __CCN_PRIVATE_H__
-#define __CCN_PRIVATE_H__
+#ifndef CCN_PRIVATE_H
+#define CCN_PRIVATE_H
 
 /*
  * A CCN implementation can have a maximum of 64 Request nodes with node IDs
@@ -230,4 +230,4 @@ static inline unsigned int count_set_bits(unsigned long long bitmap)
 #define CCN_GET_HN_NODEID_MAP(periphbase, mn_hn_id_reg_offset)		\
 	ccn_reg_read(periphbase, MN_REGION_ID, mn_hn_id_reg_offset)
 
-#endif /* __CCN_PRIVATE_H__ */
+#endif /* CCN_PRIVATE_H */
diff --git a/drivers/arm/gic/common/gic_common_private.h b/drivers/arm/gic/common/gic_common_private.h
index fa34e477c..9d9e8c7ba 100644
--- a/drivers/arm/gic/common/gic_common_private.h
+++ b/drivers/arm/gic/common/gic_common_private.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef GIC_COMMON_PRIVATE_H_
-#define GIC_COMMON_PRIVATE_H_
+#ifndef GIC_COMMON_PRIVATE_H
+#define GIC_COMMON_PRIVATE_H
 
 #include <gic_common.h>
 #include <mmio.h>
@@ -85,4 +85,4 @@ void gicd_set_icactiver(uintptr_t base, unsigned int id);
 void gicd_set_ipriorityr(uintptr_t base, unsigned int id, unsigned int pri);
 void gicd_set_icfgr(uintptr_t base, unsigned int id, unsigned int cfg);
 
-#endif /* GIC_COMMON_PRIVATE_H_ */
+#endif /* GIC_COMMON_PRIVATE_H */
diff --git a/drivers/arm/gic/v2/gicv2_private.h b/drivers/arm/gic/v2/gicv2_private.h
index 1eb6d9d51..ccfad78cd 100644
--- a/drivers/arm/gic/v2/gicv2_private.h
+++ b/drivers/arm/gic/v2/gicv2_private.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __GICV2_PRIVATE_H__
-#define __GICV2_PRIVATE_H__
+#ifndef GICV2_PRIVATE_H
+#define GICV2_PRIVATE_H
 
 #include <gicv2.h>
 #include <mmio.h>
@@ -146,4 +146,4 @@ static inline void gicc_write_dir(uintptr_t base, unsigned int val)
 	mmio_write_32(base + GICC_DIR, val);
 }
 
-#endif /* __GICV2_PRIVATE_H__ */
+#endif /* GICV2_PRIVATE_H */
diff --git a/drivers/arm/gic/v3/gicv3_private.h b/drivers/arm/gic/v3/gicv3_private.h
index 85231ad9d..188e71168 100644
--- a/drivers/arm/gic/v3/gicv3_private.h
+++ b/drivers/arm/gic/v3/gicv3_private.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __GICV3_PRIVATE_H__
-#define __GICV3_PRIVATE_H__
+#ifndef GICV3_PRIVATE_H
+#define GICV3_PRIVATE_H
 
 #include <assert.h>
 #include <gic_common.h>
@@ -387,4 +387,4 @@ static inline void gits_wait_for_quiescent_bit(uintptr_t gits_base)
 }
 
 
-#endif /* __GICV3_PRIVATE_H__ */
+#endif /* GICV3_PRIVATE_H */
diff --git a/drivers/imx/timer/imx_gpt.h b/drivers/imx/timer/imx_gpt.h
index 6416c3cbd..24326330b 100644
--- a/drivers/imx/timer/imx_gpt.h
+++ b/drivers/imx/timer/imx_gpt.h
@@ -4,11 +4,11 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __IMX_GPT_H__
-#define __IMX_GPT_H__
+#ifndef IMX_GPT_H
+#define IMX_GPT_H
 
 #include <stdint.h>
 
 void imx_gpt_ops_init(uintptr_t reg_base);
 
-#endif /* __IMX_GPT_H__ */
+#endif /* IMX_GPT_H */
diff --git a/drivers/imx/uart/imx_uart.h b/drivers/imx/uart/imx_uart.h
index de421256f..c3edbc72a 100644
--- a/drivers/imx/uart/imx_uart.h
+++ b/drivers/imx/uart/imx_uart.h
@@ -3,8 +3,8 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
-#ifndef __IMX_CONSOLE_H__
-#define __IMX_CONSOLE_H__
+#ifndef IMX_UART_H
+#define IMX_UART_H
 
 #define IMX_UART_RXD_OFFSET	0x00
 #define IMX_UART_RXD_CHARRDY	BIT(15)
@@ -150,4 +150,4 @@
 #define IMX_UART_TS_RXFULL	BIT(3)
 #define IMX_UART_TS_SOFTRST	BIT(0)
 
-#endif /* __IMX_UART_H__ */
+#endif /* IMX_UART_H */
diff --git a/drivers/imx/usdhc/imx_usdhc.h b/drivers/imx/usdhc/imx_usdhc.h
index 6214cc145..9ff3298df 100644
--- a/drivers/imx/usdhc/imx_usdhc.h
+++ b/drivers/imx/usdhc/imx_usdhc.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef __IMX_USDHC_H__
-#define	__IMX_USDHC_H__
+#ifndef IMX_USDHC_H
+#define IMX_USDHC_H
 
 #include <mmc.h>
 
@@ -134,4 +134,4 @@ void imx_usdhc_init(imx_usdhc_params_t *params,
 #define mmio_clrbits32(addr, clear)		mmio_write_32(addr, mmio_read_32(addr) & ~(clear))
 #define mmio_setbits32(addr, set)		mmio_write_32(addr, mmio_read_32(addr) | (set))
 
-#endif  /* __IMX_USDHC_H__ */
+#endif /* IMX_USDHC_H */
diff --git a/drivers/marvell/comphy.h b/drivers/marvell/comphy.h
index 788b1b605..fab564ef0 100644
--- a/drivers/marvell/comphy.h
+++ b/drivers/marvell/comphy.h
@@ -7,8 +7,8 @@
 
 /* Driver for COMPHY unit that is part or Marvell A8K SoCs */
 
-#ifndef _COMPHY_H_
-#define _COMPHY_H_
+#ifndef COMPHY_H
+#define COMPHY_H
 
 /* COMPHY registers */
 #define COMMON_PHY_CFG1_REG			0x0
@@ -469,5 +469,4 @@
 #define HPIPE_GLOBAL_PM_RXDLOZ_WAIT_MASK	\
 			(0xFF << HPIPE_GLOBAL_PM_RXDLOZ_WAIT_OFFSET)
 
-#endif /* _COMPHY_H_ */
-
+#endif /* COMPHY_H */
diff --git a/drivers/marvell/comphy/comphy-cp110.h b/drivers/marvell/comphy/comphy-cp110.h
index 1d7aec88f..6eb7fd0d2 100644
--- a/drivers/marvell/comphy/comphy-cp110.h
+++ b/drivers/marvell/comphy/comphy-cp110.h
@@ -7,8 +7,8 @@
 
 /* Marvell CP110 SoC COMPHY unit driver */
 
-#ifndef _PHY_COMPHY_CP110_H
-#define _PHY_COMPHY_CP110_H
+#ifndef COMPHY_CP110_H
+#define COMPHY_CP110_H
 
 #define SD_ADDR(base, lane)			(base + 0x1000 * lane)
 #define HPIPE_ADDR(base, lane)			(SD_ADDR(base, lane) + 0x800)
@@ -862,5 +862,4 @@
 /* General defines */
 #define PLL_LOCK_TIMEOUT			15000
 
-#endif /* _PHY_COMPHY_CP110_H */
-
+#endif /* COMPHY_CP110_H */
diff --git a/drivers/marvell/comphy/phy-comphy-3700.h b/drivers/marvell/comphy/phy-comphy-3700.h
index 714a41c5e..1628e36ce 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.h
+++ b/drivers/marvell/comphy/phy-comphy-3700.h
@@ -5,8 +5,8 @@
  * https://spdx.org/licenses
  */
 
-#ifndef _PHY_COMPHY_3700_H
-#define _PHY_COMPHY_3700_H
+#ifndef PHY_COMPHY_3700_H
+#define PHY_COMPHY_3700_H
 
 #define PLL_SET_DELAY_US			600
 #define COMPHY_PLL_TIMEOUT			1000
@@ -255,4 +255,4 @@ enum {
 int mvebu_3700_comphy_is_pll_locked(uint8_t comphy_index, uint32_t comphy_mode);
 int mvebu_3700_comphy_power_off(uint8_t comphy_index, uint32_t comphy_mode);
 int mvebu_3700_comphy_power_on(uint8_t comphy_index, uint32_t comphy_mode);
-#endif /* _PHY_COMPHY_3700_H */
+#endif /* PHY_COMPHY_3700_H */
diff --git a/drivers/marvell/comphy/phy-comphy-common.h b/drivers/marvell/comphy/phy-comphy-common.h
index ba1a83cef..78c7a38fc 100644
--- a/drivers/marvell/comphy/phy-comphy-common.h
+++ b/drivers/marvell/comphy/phy-comphy-common.h
@@ -7,8 +7,8 @@
 
 /* Marvell CP110 ana A3700 common */
 
-#ifndef _PHY_COMPHY_COMMON_H
-#define _PHY_COMPHY_COMMON_H
+#ifndef PHY_COMPHY_COMMON_H
+#define PHY_COMPHY_COMMON_H
 
 /* #define DEBUG_COMPHY */
 #ifdef DEBUG_COMPHY
@@ -153,4 +153,4 @@ static inline void __unused reg_set16(uintptr_t addr, uint16_t data,
 	debug("new val 0x%x\n", mmio_read_16(addr));
 }
 
-#endif /* _PHY_COMPHY_COMMON_H */
+#endif /* PHY_COMPHY_COMMON_H */
diff --git a/drivers/marvell/comphy/phy-default-porting-layer.h b/drivers/marvell/comphy/phy-default-porting-layer.h
index 39cd1819a..b3ad7eb14 100644
--- a/drivers/marvell/comphy/phy-default-porting-layer.h
+++ b/drivers/marvell/comphy/phy-default-porting-layer.h
@@ -5,8 +5,8 @@
  * https://spdx.org/licenses
  */
 
-#ifndef __PHY_DEFAULT_PORTING_LAYER_H
-#define __PHY_DEFAULT_PORTING_LAYER_H
+#ifndef PHY_DEFAULT_PORTING_LAYER_H
+#define PHY_DEFAULT_PORTING_LAYER_H
 
 
 #define MAX_LANE_NR		6
@@ -48,4 +48,4 @@ static const struct sata_params
 		.valid = 0x1
 	},
 };
-#endif /* __PHY_DEFAULT_PORTING_LAYER_H */
+#endif /* PHY_DEFAULT_PORTING_LAYER_H */
diff --git a/drivers/marvell/mc_trustzone/mc_trustzone.h b/drivers/marvell/mc_trustzone/mc_trustzone.h
index 8a0692331..d36dcb5c0 100644
--- a/drivers/marvell/mc_trustzone/mc_trustzone.h
+++ b/drivers/marvell/mc_trustzone/mc_trustzone.h
@@ -5,8 +5,8 @@
  * https://spdx.org/licenses
  */
 
-#ifndef _MC_TRUSTZONE_H
-#define _MC_TRUSTZONE_H
+#ifndef MC_TRUSTZONE_H
+#define MC_TRUSTZONE_H
 
 #include <addr_map.h>
 
@@ -24,4 +24,4 @@
 
 void tz_enable_win(int ap_index, const struct addr_map_win *win, int win_id);
 
-#endif /* _MC_TRUSTZONE_H */
+#endif /* MC_TRUSTZONE_H */
diff --git a/drivers/marvell/uart/a3700_console.h b/drivers/marvell/uart/a3700_console.h
index 1831360eb..de7c4fc59 100644
--- a/drivers/marvell/uart/a3700_console.h
+++ b/drivers/marvell/uart/a3700_console.h
@@ -5,8 +5,8 @@
  * https://spdx.org/licenses
  */
 
-#ifndef __A3700_CONSOLE_H__
-#define __A3700_CONSOLE_H__
+#ifndef A3700_CONSOLE_H
+#define A3700_CONSOLE_H
 
 /* MVEBU UART Registers */
 #define UART_RX_REG		0x00
@@ -52,4 +52,4 @@
 #define UART_CTRL_TXFIFO_RESET	(1 << 15)
 #define UARTLSR_TXFIFOEMPTY	(1 << 6)
 
-#endif	/* __A3700_CONSOLE_H__ */
+#endif /* A3700_CONSOLE_H */
diff --git a/drivers/renesas/rcar/avs/avs_driver.h b/drivers/renesas/rcar/avs/avs_driver.h
index e86892871..aa773b604 100644
--- a/drivers/renesas/rcar/avs/avs_driver.h
+++ b/drivers/renesas/rcar/avs/avs_driver.h
@@ -5,8 +5,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef AVS_DRIVER_H__
-#define AVS_DRIVER_H__
+#ifndef AVS_DRIVER_H
+#define AVS_DRIVER_H
 
 /* AVS Setting. 1:enable / 0:disable */
 #ifndef AVS_SETTING_ENABLE
@@ -17,4 +17,4 @@ void rcar_avs_init(void);
 void rcar_avs_setting(void);
 void rcar_avs_end(void);
 
-#endif /* AVS_DRIVER_H__ */
+#endif /* AVS_DRIVER_H */
diff --git a/drivers/renesas/rcar/board/board.h b/drivers/renesas/rcar/board/board.h
index 15d80b9b4..7bb2a0626 100644
--- a/drivers/renesas/rcar/board/board.h
+++ b/drivers/renesas/rcar/board/board.h
@@ -5,8 +5,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef BOARD_H_
-#define BOARD_H_
+#ifndef BOARD_H
+#define BOARD_H
 
 #define BOARD_SALVATOR_X		(0x00)
 #define BOARD_KRIEK			(0x01)
@@ -32,4 +32,4 @@ extern const char *g_board_tbl[];
 
 int32_t rcar_get_board_type(uint32_t *type, uint32_t *rev);
 
-#endif
+#endif /* BOARD_H */
diff --git a/drivers/renesas/rcar/console/rcar_printf.h b/drivers/renesas/rcar/console/rcar_printf.h
index dd7a61b03..bcb00c341 100644
--- a/drivers/renesas/rcar/console/rcar_printf.h
+++ b/drivers/renesas/rcar/console/rcar_printf.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef	RCAR_PRINTF_H__
-#define	RCAR_PRINTF_H__
+#ifndef RCAR_PRINTF_H
+#define RCAR_PRINTF_H
 
 #include <string.h>
 
@@ -16,4 +16,4 @@ int32_t rcar_log_init(void);
 extern uint64_t rcar_stack_generic_timer[5];
 #endif
 
-#endif
+#endif /* RCAR_PRINTF_H */
diff --git a/drivers/renesas/rcar/delay/micro_delay.h b/drivers/renesas/rcar/delay/micro_delay.h
index f5983949d..458959fd8 100644
--- a/drivers/renesas/rcar/delay/micro_delay.h
+++ b/drivers/renesas/rcar/delay/micro_delay.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef MICRO_DELAY_H__
-#define MICRO_DELAY_H__
+#ifndef MICRO_DELAY_H
+#define MICRO_DELAY_H
 
 #define TMU3_MEASUREMENT	(0)
 
@@ -23,4 +23,4 @@ uint32_t tcnt3_snapshot(void);
 
 #endif
 
-#endif
+#endif /* MICRO_DELAY_H */
diff --git a/drivers/renesas/rcar/emmc/emmc_config.h b/drivers/renesas/rcar/emmc/emmc_config.h
index 16dcea199..686ccb99c 100644
--- a/drivers/renesas/rcar/emmc/emmc_config.h
+++ b/drivers/renesas/rcar/emmc/emmc_config.h
@@ -10,8 +10,8 @@
  *
  */
 
-#ifndef __EMMC_CONFIG_H__
-#define __EMMC_CONFIG_H__
+#ifndef EMMC_CONFIG_H
+#define EMMC_CONFIG_H
 
 /* ************************ HEADER (INCLUDE) SECTION *********************** */
 
@@ -36,5 +36,5 @@
 
 /* ********************************* CODE ********************************** */
 
-#endif /* #ifndef __EMMC_CONFIG_H__ */
+#endif /* EMMC_CONFIG_H */
 /* ******************************** END ************************************ */
diff --git a/drivers/renesas/rcar/emmc/emmc_def.h b/drivers/renesas/rcar/emmc/emmc_def.h
index 2944515e9..178c795b9 100644
--- a/drivers/renesas/rcar/emmc/emmc_def.h
+++ b/drivers/renesas/rcar/emmc/emmc_def.h
@@ -10,8 +10,8 @@
  *
  */
 
-#ifndef __EMMC_DEF_H__
-#define __EMMC_DEF_H__
+#ifndef EMMC_DEF_H
+#define EMMC_DEF_H
 
 #include "emmc_std.h"
 
@@ -74,5 +74,5 @@ void emmc_write_error_info_func_no(uint16_t func_no);
 
 /* ********************************* CODE ********************************** */
 
-#endif /* #define __EMMC_DEF_H__ */
+#endif /* EMMC_DEF_H */
 /* ******************************** END ************************************ */
diff --git a/drivers/renesas/rcar/emmc/emmc_hal.h b/drivers/renesas/rcar/emmc/emmc_hal.h
index 633446c94..f0b7e9d77 100644
--- a/drivers/renesas/rcar/emmc/emmc_hal.h
+++ b/drivers/renesas/rcar/emmc/emmc_hal.h
@@ -10,8 +10,8 @@
  *
  */
 
-#ifndef __EMMC_HAL_H__
-#define __EMMC_HAL_H__
+#ifndef EMMC_HAL_H
+#define EMMC_HAL_H
 /* ************************ HEADER (INCLUDE) SECTION *********************** */
 #include <stdint.h>
 /* ***************** MACROS, CONSTANTS, COMPILATION FLAGS ****************** */
@@ -313,6 +313,6 @@ typedef struct {
 
 /* ********************************* CODE ********************************** */
 
-#endif /* __EMMC_HAL_H__ */
+#endif /* EMMC_HAL_H */
 
 /* ******************************** END ************************************ */
diff --git a/drivers/renesas/rcar/emmc/emmc_registers.h b/drivers/renesas/rcar/emmc/emmc_registers.h
index a670ab7ef..55ff33d8c 100644
--- a/drivers/renesas/rcar/emmc/emmc_registers.h
+++ b/drivers/renesas/rcar/emmc/emmc_registers.h
@@ -10,8 +10,8 @@
  *
  */
 
-#ifndef __EMMC_REGISTERS_H__
-#define __EMMC_REGISTERS_H__
+#ifndef EMMC_REGISTERS_H
+#define EMMC_REGISTERS_H
 
 /* ************************ HEADER (INCLUDE) SECTION *********************** */
 
@@ -256,5 +256,5 @@
 
 /* ********************************* CODE ********************************** */
 
-#endif /* __EMMC_REGISTERS_H__ */
+#endif /* EMMC_REGISTERS_H */
 /* ******************************** END ************************************ */
diff --git a/drivers/renesas/rcar/emmc/emmc_std.h b/drivers/renesas/rcar/emmc/emmc_std.h
index f4ce19817..99cb6b992 100644
--- a/drivers/renesas/rcar/emmc/emmc_std.h
+++ b/drivers/renesas/rcar/emmc/emmc_std.h
@@ -10,8 +10,8 @@
  *
  */
 
-#ifndef __EMMC_STD_H__
-#define __EMMC_STD_H__
+#ifndef EMMC_STD_H
+#define EMMC_STD_H
 
 #include "emmc_hal.h"
 
@@ -471,4 +471,4 @@ uint32_t emmc_get_csd_time(void);
 /* ********************************* CODE ********************************** */
 
 /* ******************************** END ************************************ */
-#endif /* __EMMC_STD_H__ */
+#endif /* EMMC_STD_H */
diff --git a/drivers/renesas/rcar/iic_dvfs/iic_dvfs.h b/drivers/renesas/rcar/iic_dvfs/iic_dvfs.h
index 3c4a9a552..2dec58f64 100644
--- a/drivers/renesas/rcar/iic_dvfs/iic_dvfs.h
+++ b/drivers/renesas/rcar/iic_dvfs/iic_dvfs.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IIC_DVFS_H__
-#define IIC_DVFS_H__
+#ifndef IIC_DVFS_H
+#define IIC_DVFS_H
 
 /* PMIC slave */
 #define PMIC			(0x30)
@@ -20,4 +20,4 @@
 int32_t rcar_iic_dvfs_receive(uint8_t slave, uint8_t reg, uint8_t *data);
 int32_t rcar_iic_dvfs_send(uint8_t slave, uint8_t regr, uint8_t data);
 
-#endif
+#endif /* IIC_DVFS_H */
diff --git a/drivers/renesas/rcar/io/io_common.h b/drivers/renesas/rcar/io/io_common.h
index c5729b897..6eb77777a 100644
--- a/drivers/renesas/rcar/io/io_common.h
+++ b/drivers/renesas/rcar/io/io_common.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IO_COMMON_H__
-#define IO_COMMON_H__
+#ifndef IO_COMMON_H
+#define IO_COMMON_H
 
 typedef struct io_drv_spec {
 	size_t offset;
@@ -13,4 +13,4 @@ typedef struct io_drv_spec {
 	uint32_t partition;
 } io_drv_spec_t;
 
-#endif
+#endif /* IO_COMMON_H */
diff --git a/drivers/renesas/rcar/io/io_emmcdrv.h b/drivers/renesas/rcar/io/io_emmcdrv.h
index 82c6c5168..95070f24b 100644
--- a/drivers/renesas/rcar/io/io_emmcdrv.h
+++ b/drivers/renesas/rcar/io/io_emmcdrv.h
@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IO_EMMCDRV_H__
-#define IO_EMMCDRV_H__
+#ifndef IO_EMMCDRV_H
+#define IO_EMMCDRV_H
 
 struct io_dev_connector;
 int32_t rcar_register_io_dev_emmcdrv(const io_dev_connector_t **connector);
 
-#endif
+#endif /* IO_EMMCDRV_H */
diff --git a/drivers/renesas/rcar/io/io_memdrv.h b/drivers/renesas/rcar/io/io_memdrv.h
index 41727d3a8..90e68123e 100644
--- a/drivers/renesas/rcar/io/io_memdrv.h
+++ b/drivers/renesas/rcar/io/io_memdrv.h
@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IO_MEMDRV_H__
-#define IO_MEMDRV_H__
+#ifndef IO_MEMDRV_H
+#define IO_MEMDRV_H
 
 struct io_dev_connector;
 int32_t rcar_register_io_dev_memdrv(const io_dev_connector_t **connector);
 
-#endif
+#endif /* IO_MEMDRV_H */
diff --git a/drivers/renesas/rcar/io/io_private.h b/drivers/renesas/rcar/io/io_private.h
index d0e66c01b..207523a73 100644
--- a/drivers/renesas/rcar/io/io_private.h
+++ b/drivers/renesas/rcar/io/io_private.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IO_PRIVATE_H_
-#define IO_PRIVATE_H_
+#ifndef IO_PRIVATE_H
+#define IO_PRIVATE_H
 
 /*
  * Return codes reported by 'io_*' APIs
@@ -17,4 +17,4 @@
 #define IO_NOT_SUPPORTED	(-0x82)
 #define IO_RESOURCES_EXHAUSTED	(-0x83)
 
-#endif
+#endif /* IO_PRIVATE_H */
diff --git a/drivers/renesas/rcar/io/io_rcar.h b/drivers/renesas/rcar/io/io_rcar.h
index 242090241..c26a61767 100644
--- a/drivers/renesas/rcar/io/io_rcar.h
+++ b/drivers/renesas/rcar/io/io_rcar.h
@@ -4,11 +4,11 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef IO_RCAR_H__
-#define IO_RCAR_H__
+#ifndef IO_RCAR_H
+#define IO_RCAR_H
 
 int32_t rcar_register_io_dev(const io_dev_connector_t **dev_con);
 int32_t rcar_get_certificate(const int32_t name, uint32_t *cert);
 void rcar_read_certificate(uint64_t cert, uint32_t *size, uintptr_t *dest);
 
-#endif
+#endif /* IO_RCAR_H */
diff --git a/drivers/renesas/rcar/pwrc/pwrc.h b/drivers/renesas/rcar/pwrc/pwrc.h
index 166886ec5..3cdac694c 100644
--- a/drivers/renesas/rcar/pwrc/pwrc.h
+++ b/drivers/renesas/rcar/pwrc/pwrc.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef RCAR_PWRC_H__
-#define RCAR_PWRC_H__
+#ifndef PWRC_H
+#define PWRC_H
 
 #define PPOFFR_OFF		0x0
 #define PPONR_OFF		0x4
@@ -74,4 +74,4 @@ extern uint64_t rcar_stack_generic_timer[5];
 
 #endif
 
-#endif
+#endif /* PWRC_H */
diff --git a/drivers/renesas/rcar/rom/rom_api.h b/drivers/renesas/rcar/rom/rom_api.h
index 85105ef52..1d5b03d7f 100644
--- a/drivers/renesas/rcar/rom/rom_api.h
+++ b/drivers/renesas/rcar/rom/rom_api.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef ROM_API_H__
-#define ROM_API_H__
+#ifndef ROM_API_H
+#define ROM_API_H
 
 #include <stdint.h>
 
@@ -28,4 +28,4 @@ uint32_t rcar_rom_secure_boot_api(uint32_t *key, uint32_t *cert,
 				  rom_read_flash_f f);
 uint32_t rcar_rom_get_lcs(uint32_t *lcs);
 
-#endif
+#endif /* ROM_API_H */
diff --git a/drivers/renesas/rcar/rpc/rpc_registers.h b/drivers/renesas/rcar/rpc/rpc_registers.h
index 326519d72..79aea8599 100644
--- a/drivers/renesas/rcar/rpc/rpc_registers.h
+++ b/drivers/renesas/rcar/rpc/rpc_registers.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef RPC_REGISTER_H__
-#define RPC_REGISTER_H__
+#ifndef RPC_REGISTERS_H
+#define RPC_REGISTERS_H
 
 #define RPC_BASE	(0xEE200000U)
 #define RPC_CMNCR	(RPC_BASE + 0x0000U)
@@ -22,4 +22,4 @@
 #define RPC_PHYCNT	(RPC_BASE + 0x007CU)
 #define RPC_PHYINT	(RPC_BASE + 0x0088U)
 
-#endif
+#endif /* RPC_REGISTERS_H */
diff --git a/drivers/staging/renesas/rcar/ddr/boot_init_dram.h b/drivers/staging/renesas/rcar/ddr/boot_init_dram.h
index 7ec2930a2..4b0a9ebe4 100644
--- a/drivers/staging/renesas/rcar/ddr/boot_init_dram.h
+++ b/drivers/staging/renesas/rcar/ddr/boot_init_dram.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef	__BOOT_INIT_DRAM_
-#define	__BOOT_INIT_DRAM_
+#ifndef BOOT_INIT_DRAM_H
+#define BOOT_INIT_DRAM_H
 
 extern int32_t rcar_dram_init(void);
 
@@ -15,4 +15,4 @@ extern int32_t rcar_dram_init(void);
 #define INITDRAM_ERR_O (0xfffffffe)
 #define INITDRAM_ERR_T (0xfffffff0)
 
-#endif
+#endif /* BOOT_INIT_DRAM_H */
diff --git a/drivers/staging/renesas/rcar/ddr/ddr_a/boot_init_dram_regdef_e3.h b/drivers/staging/renesas/rcar/ddr/ddr_a/boot_init_dram_regdef_e3.h
index 80e3eecc8..8606f76d2 100644
--- a/drivers/staging/renesas/rcar/ddr/ddr_a/boot_init_dram_regdef_e3.h
+++ b/drivers/staging/renesas/rcar/ddr/ddr_a/boot_init_dram_regdef_e3.h
@@ -4,13 +4,12 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-
-#ifndef BOOT_INIT_DRAM_REGDEF_E3_H_
-#define BOOT_INIT_DRAM_REGDEF_E3_H_
+#ifndef BOOT_INIT_DRAM_REGDEF_E3_H
+#define BOOT_INIT_DRAM_REGDEF_E3_H
 
 #ifdef __cplusplus
 extern "C" {
-#endif				/* __cplusplus */
+#endif /* __cplusplus */
 
 #define				BIT0						0x00000001U
 #define				BIT11						0x00000800U
@@ -111,5 +110,6 @@ extern "C" {
 
 #ifdef __cplusplus
 }
-#endif				/* __cplusplus */
-#endif				/* BOOT_INIT_DRAM_REGDEF_E3_H_ */
+#endif /* __cplusplus */
+
+#endif /* BOOT_INIT_DRAM_REGDEF_E3_H */
diff --git a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
index 115765b13..47fe07bab 100644
--- a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
+++ b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
@@ -4,11 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#pragma once
-#include <stdint.h>
+#ifndef DDR_INIT_E3_H
+#define DDR_INIT_E3_H
 
-#ifndef	__DDR_INIT_E3_
-#define	__DDR_INIT_E3_
+#include <stdint.h>
 
 #define RCAR_E3_DDR_VERSION    "rev.0.09"
 
@@ -31,4 +30,4 @@ extern int32_t rcar_dram_init(void);
 #define INITDRAM_ERR_O (0xfffffffe)
 #define INITDRAM_ERR_T (0xfffffff0)
 
-#endif /* __DDR_INIT_E3_ */
+#endif /* DDR_INIT_E3_H */
diff --git a/drivers/staging/renesas/rcar/ddr/dram_sub_func.h b/drivers/staging/renesas/rcar/ddr/dram_sub_func.h
index e083bfbbc..7e88f4222 100644
--- a/drivers/staging/renesas/rcar/ddr/dram_sub_func.h
+++ b/drivers/staging/renesas/rcar/ddr/dram_sub_func.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef DRAM_SUB_FUNC_H_
-#define DRAM_SUB_FUNC_H_
+#ifndef DRAM_SUB_FUNC_H
+#define DRAM_SUB_FUNC_H
 
 #define DRAM_UPDATE_STATUS_ERR	(-1)
 #define DRAM_BOOT_STATUS_COLD	(0)
@@ -14,4 +14,4 @@
 int32_t rcar_dram_update_boot_status(uint32_t status);
 void rcar_dram_get_boot_status(uint32_t * status);
 
-#endif
+#endif /* DRAM_SUB_FUNC_H */
diff --git a/drivers/staging/renesas/rcar/pfc/E3/pfc_init_e3.h b/drivers/staging/renesas/rcar/pfc/E3/pfc_init_e3.h
index 041a778fd..647a937d1 100644
--- a/drivers/staging/renesas/rcar/pfc/E3/pfc_init_e3.h
+++ b/drivers/staging/renesas/rcar/pfc/E3/pfc_init_e3.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PFC_INIT_E3_H__
-#define PFC_INIT_E3_H__
+#ifndef PFC_INIT_E3_H
+#define PFC_INIT_E3_H
 
 void pfc_init_e3(void);
 
-#endif /* PFC_INIT_E3_H__ */
+#endif /* PFC_INIT_E3_H */
diff --git a/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v1.h b/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v1.h
index 844c1b995..2478e1c08 100644
--- a/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v1.h
+++ b/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v1.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PFC_INIT_H3_V1_H__
-#define PFC_INIT_H3_V1_H__
+#ifndef PFC_INIT_H3_V1_H
+#define PFC_INIT_H3_V1_H
 
 void pfc_init_h3_v1(void);
 
-#endif /* PFC_INIT_H3_V1_H__ */
+#endif /* PFC_INIT_H3_V1_H */
diff --git a/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v2.h b/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v2.h
index 3f691f8e9..b02f93eb2 100644
--- a/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v2.h
+++ b/drivers/staging/renesas/rcar/pfc/H3/pfc_init_h3_v2.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PFC_INIT_H3_V2_H__
-#define PFC_INIT_H3_V2_H__
+#ifndef PFC_INIT_H3_V2_H
+#define PFC_INIT_H3_V2_H
 
 void pfc_init_h3_v2(void);
 
-#endif /* PFC_INIT_H3_V2_H__ */
+#endif /* PFC_INIT_H3_V2_H */
diff --git a/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h b/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h
index c6ee69393..70885de79 100644
--- a/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h
+++ b/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PFC_INIT_M3_H__
-#define PFC_INIT_M3_H__
+#ifndef PFC_INIT_M3_H
+#define PFC_INIT_M3_H
 
 void pfc_init_m3(void);
 
-#endif /* PFC_INIT_M3_H__ */
+#endif /* PFC_INIT_M3_H */
diff --git a/drivers/staging/renesas/rcar/pfc/M3N/pfc_init_m3n.h b/drivers/staging/renesas/rcar/pfc/M3N/pfc_init_m3n.h
index 9e08e5833..3e6f87944 100644
--- a/drivers/staging/renesas/rcar/pfc/M3N/pfc_init_m3n.h
+++ b/drivers/staging/renesas/rcar/pfc/M3N/pfc_init_m3n.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef PFC_INIT_M3N_H__
-#define PFC_INIT_M3N_H__
+#ifndef PFC_INIT_M3N_H
+#define PFC_INIT_M3N_H
 
 void pfc_init_m3n(void);
 
-#endif /* PFC_INIT_M3N_H__ */
+#endif /* PFC_INIT_M3N_H */
diff --git a/drivers/staging/renesas/rcar/qos/E3/qos_init_e3_v10.h b/drivers/staging/renesas/rcar/qos/E3/qos_init_e3_v10.h
index ab82e9632..2c1d8c580 100644
--- a/drivers/staging/renesas/rcar/qos/E3/qos_init_e3_v10.h
+++ b/drivers/staging/renesas/rcar/qos/E3/qos_init_e3_v10.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_E3_V10__
-#define QOS_INIT_H_E3_V10__
+#ifndef QOS_INIT_E3_V10_H
+#define QOS_INIT_E3_V10_H
 
 void qos_init_e3_v10(void);
 
-#endif /* QOS_INIT_H_E3_V10__ */
+#endif /* QOS_INIT_E3_V10_H */
diff --git a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v10.h b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v10.h
index e55f7746c..f96182aa6 100644
--- a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v10.h
+++ b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v10.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_H3_V10__
-#define QOS_INIT_H_H3_V10__
+#ifndef QOS_INIT_H3_V10_H
+#define QOS_INIT_H3_V10_H
 
 void qos_init_h3_v10(void);
 
-#endif /* QOS_INIT_H_H3_V10__ */
+#endif /* QOS_INIT_H3_V10_H */
diff --git a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v11.h b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v11.h
index 759e58b3e..3faeb4f72 100644
--- a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v11.h
+++ b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v11.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_H3_V11__
-#define QOS_INIT_H_H3_V11__
+#ifndef QOS_INIT_H3_V11_H
+#define QOS_INIT_H3_V11_H
 
 void qos_init_h3_v11(void);
 
-#endif /* QOS_INIT_H_H3_V11__ */
+#endif /* QOS_INIT_H3_V11_H */
diff --git a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v20.h b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v20.h
index 59c1bdbb9..9b7619ea1 100644
--- a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v20.h
+++ b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v20.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_H3_V20__
-#define QOS_INIT_H_H3_V20__
+#ifndef QOS_INIT_H3_V20_H
+#define QOS_INIT_H3_V20_H
 
 void qos_init_h3_v20(void);
 
-#endif /* QOS_INIT_H_H3_V20__ */
+#endif /* QOS_INIT_H3_V20_H */
diff --git a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v30.h b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v30.h
index 5441f55de..d33b43c5f 100644
--- a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v30.h
+++ b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v30.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_H3_V30__
-#define QOS_INIT_H_H3_V30__
+#ifndef QOS_INIT_H3_V30_H
+#define QOS_INIT_H3_V30_H
 
 void qos_init_h3_v30(void);
 
-#endif /* QOS_INIT_H_H3_V20__ */
+#endif /* QOS_INIT_H3_V30_H */
diff --git a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3n_v30.h b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3n_v30.h
index 73fe69493..46f344059 100644
--- a/drivers/staging/renesas/rcar/qos/H3/qos_init_h3n_v30.h
+++ b/drivers/staging/renesas/rcar/qos/H3/qos_init_h3n_v30.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_H3N_V30__
-#define QOS_INIT_H_H3N_V30__
+#ifndef QOS_INIT_H3N_V30_H
+#define QOS_INIT_H3N_V30_H
 
 void qos_init_h3n_v30(void);
 
-#endif /* QOS_INIT_H_H3N_V30__ */
+#endif /* QOS_INIT_H3N_V30_H */
diff --git a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.h b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.h
index 837107512..01ef46c2d 100644
--- a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.h
+++ b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_M3_V10__
-#define QOS_INIT_H_M3_V10__
+#ifndef QOS_INIT_M3_V10_H
+#define QOS_INIT_M3_V10_H
 
 void qos_init_m3_v10(void);
 
-#endif /* QOS_INIT_H_M3_V10__ */
+#endif /* QOS_INIT_M3_V10_H */
diff --git a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.h b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.h
index 6e3bc574d..1552fb660 100644
--- a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.h
+++ b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_M3_V11__
-#define QOS_INIT_H_M3_V11__
+#ifndef QOS_INIT_M3_V11_H
+#define QOS_INIT_M3_V11_H
 
 void qos_init_m3_v11(void);
 
-#endif /* QOS_INIT_H_M3_V11__ */
+#endif /* QOS_INIT_M3_V11_H */
diff --git a/drivers/staging/renesas/rcar/qos/M3N/qos_init_m3n_v10.h b/drivers/staging/renesas/rcar/qos/M3N/qos_init_m3n_v10.h
index ae7d2e279..0cd0c85a8 100644
--- a/drivers/staging/renesas/rcar/qos/M3N/qos_init_m3n_v10.h
+++ b/drivers/staging/renesas/rcar/qos/M3N/qos_init_m3n_v10.h
@@ -4,9 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_M3N_V10__
-#define QOS_INIT_H_M3N_V10__
+#ifndef QOS_INIT_M3N_V10_H
+#define QOS_INIT_M3N_V10_H
 
 void qos_init_m3n_v10(void);
 
-#endif /* QOS_INIT_H_M3N_V10__ */
+#endif /* QOS_INIT_M3N_V10_H */
diff --git a/drivers/staging/renesas/rcar/qos/qos_common.h b/drivers/staging/renesas/rcar/qos/qos_common.h
index a5963f394..0174d5bfc 100644
--- a/drivers/staging/renesas/rcar/qos/qos_common.h
+++ b/drivers/staging/renesas/rcar/qos/qos_common.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_COMMON_H_
-#define QOS_COMMON_H_
+#ifndef QOS_COMMON_H
+#define QOS_COMMON_H
 
 #define RCAR_REF_DEFAULT		(0U)
 
@@ -110,4 +110,4 @@ typedef struct {
 extern uint32_t qos_init_ddr_ch;
 extern uint8_t qos_init_ddr_phyvalid;
 
-#endif /* QOS_COMMON_H_ */
+#endif /* QOS_COMMON_H */
diff --git a/drivers/staging/renesas/rcar/qos/qos_init.h b/drivers/staging/renesas/rcar/qos/qos_init.h
index d2f3ec8f1..1b6499284 100644
--- a/drivers/staging/renesas/rcar/qos/qos_init.h
+++ b/drivers/staging/renesas/rcar/qos/qos_init.h
@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_INIT_H_
-#define QOS_INIT_H_
+#ifndef QOS_INIT_H
+#define QOS_INIT_H
 
 extern void rcar_qos_init(void);
 extern uint8_t get_boardcnf_phyvalid(void);
 
-#endif /* QOS_INIT_H_ */
+#endif /* QOS_INIT_H */
diff --git a/drivers/staging/renesas/rcar/qos/qos_reg.h b/drivers/staging/renesas/rcar/qos/qos_reg.h
index 1bf70b2f8..759816fdc 100644
--- a/drivers/staging/renesas/rcar/qos/qos_reg.h
+++ b/drivers/staging/renesas/rcar/qos/qos_reg.h
@@ -4,8 +4,8 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef QOS_REG_H_
-#define QOS_REG_H_
+#ifndef QOS_REG_H
+#define QOS_REG_H
 
 #define	RCAR_QOS_NONE				(3U)
 #define	RCAR_QOS_TYPE_DEFAULT		(0U)
@@ -118,4 +118,4 @@
 #define	QOSWT_WTSET0				(QOS_BASE0 + 0x8038U)
 #define	QOSWT_WTSET1				(QOS_BASE0 + 0x803CU)
 
-#endif /* QOS_REG_H_ */
+#endif /* QOS_REG_H */