drivers: renesas: rcar: io: Code cleanup

This patch fixes checkpatch warnings and arrange header
as per TF-A coding style.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I46cd4d9b2851202324fe714e776cf3ad2ee1d923

drivers/renesas/rcar/io/io_emmcdrv.c

 /*
- * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -10,13 +10,13 @@
 #include <drivers/io/io_driver.h>
 #include <drivers/io/io_storage.h>
 
-#include "io_common.h"
-#include "io_emmcdrv.h"
-#include "io_private.h"
 #include "emmc_config.h"
+#include "emmc_def.h"
 #include "emmc_hal.h"
 #include "emmc_std.h"
-#include "emmc_def.h"
+#include "io_common.h"
+#include "io_emmcdrv.h"
+#include "io_private.h"
 
 static int32_t emmcdrv_dev_open(const uintptr_t spec __attribute__ ((unused)),
 				io_dev_info_t **dev_info);
@@ -41,8 +41,9 @@ static io_type_t device_type_emmcdrv(void)
 static int32_t emmcdrv_block_seek(io_entity_t *entity, int32_t mode,
 				  signed long long offset)
 {
-	if (mode != IO_SEEK_SET)
+	if (mode != IO_SEEK_SET) {
 		return IO_FAIL;
+	}
 
 	((file_state_t *) entity->info)->file_pos = offset;
 
@@ -64,12 +65,14 @@ static int32_t emmcdrv_block_read(io_entity_t *entity, uintptr_t buffer,
 	       current_file.partition, current_file.file_pos,
 	       sector_add, length, sector_num);
 
-	if ((buffer + length - 1U) <= (uintptr_t)UINT32_MAX)
+	if ((buffer + length - 1U) <= (uintptr_t)UINT32_MAX) {
 		emmc_dma = LOADIMAGE_FLAGS_DMA_ENABLE;
+	}
 
 	if (emmc_read_sector((uint32_t *) buffer, sector_add, sector_num,
-			     emmc_dma) != EMMC_SUCCESS)
+			     emmc_dma) != EMMC_SUCCESS) {
 		result = IO_FAIL;
+	}
 
 	*length_read = length;
 	fp->file_pos += (signed long long)length;
@@ -92,8 +95,8 @@ static int32_t emmcdrv_block_open(io_dev_info_t *dev_info,
 
 	if (emmcdrv_bootpartition == PARTITION_ID_USER) {
 		emmcdrv_bootpartition = mmc_drv_obj.boot_partition_en;
-		if ((PARTITION_ID_BOOT_1 == emmcdrv_bootpartition) ||
-		    (PARTITION_ID_BOOT_2 == emmcdrv_bootpartition)) {
+		if ((emmcdrv_bootpartition == PARTITION_ID_BOOT_1) ||
+		    (emmcdrv_bootpartition == PARTITION_ID_BOOT_2)) {
 			current_file.partition = emmcdrv_bootpartition;
 
 			NOTICE("BL2: eMMC boot from partition %d\n",
@@ -103,16 +106,18 @@ static int32_t emmcdrv_block_open(io_dev_info_t *dev_info,
 		return IO_FAIL;
 	}
 
-	if ((PARTITION_ID_USER == block_spec->partition) ||
-	    (PARTITION_ID_BOOT_1 == block_spec->partition) ||
-	    (PARTITION_ID_BOOT_2 == block_spec->partition))
+	if ((block_spec->partition == PARTITION_ID_USER) ||
+	    (block_spec->partition == PARTITION_ID_BOOT_1) ||
+	    (block_spec->partition == PARTITION_ID_BOOT_2)) {
 		current_file.partition = block_spec->partition;
-	else
+	} else {
 		current_file.partition = emmcdrv_bootpartition;
+	}
 
 done:
-	if (emmc_select_partition(current_file.partition) != EMMC_SUCCESS)
+	if (emmc_select_partition(current_file.partition) != EMMC_SUCCESS) {
 		return IO_FAIL;
+	}
 
 	entity->info = (uintptr_t) &current_file;
 
@@ -166,8 +171,9 @@ int32_t rcar_register_io_dev_emmcdrv(const io_dev_connector_t **dev_con)
 	int32_t rc;
 
 	rc = io_register_device(&emmcdrv_dev_info);
-	if (rc == IO_SUCCESS)
+	if (rc == IO_SUCCESS) {
 		*dev_con = &emmcdrv_dev_connector;
+	}
 
 	return rc;
 }

drivers/renesas/rcar/io/io_memdrv.c

 /*
- * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -11,8 +11,8 @@
 #include <drivers/io/io_storage.h>
 
 #include "io_common.h"
-#include "io_private.h"
 #include "io_memdrv.h"
+#include "io_private.h"
 #include "rcar_def.h"
 
 extern void rcar_dma_exec(uintptr_t dst, uint32_t src, uint32_t len);
@@ -21,7 +21,8 @@ static int32_t memdrv_dev_open(const uintptr_t dev __attribute__ ((unused)),
 			       io_dev_info_t **dev_info);
 static int32_t memdrv_dev_close(io_dev_info_t *dev_info);
 
-/* As we need to be able to keep state for seek, only one file can be open
+/*
+ * As we need to be able to keep state for seek, only one file can be open
  * at a time. Make this a structure and point to the entity->info. When we
  * can malloc memory we can change this to support more open files.
  */
@@ -43,12 +44,14 @@ static int32_t memdrv_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
 {
 	const io_drv_spec_t *block_spec = (io_drv_spec_t *) spec;
 
-	/* Since we need to track open state for seek() we only allow one open
+	/*
+	 * Since we need to track open state for seek() we only allow one open
 	 * spec at a time. When we have dynamic memory we can malloc and set
 	 * entity->info.
 	 */
-	if (current_file.in_use != 0U)
+	if (current_file.in_use != 0U) {
 		return IO_RESOURCES_EXHAUSTED;
+	}
 
 	/* File cursor offset for seek and incremental reads etc. */
 	current_file.base = block_spec->offset;
@@ -63,8 +66,9 @@ static int32_t memdrv_block_open(io_dev_info_t *dev_info, const uintptr_t spec,
 static int32_t memdrv_block_seek(io_entity_t *entity, int32_t mode,
 				 signed long long offset)
 {
-	if (mode != IO_SEEK_SET)
+	if (mode != IO_SEEK_SET) {
 		return IO_FAIL;
+	}
 
 	((file_state_t *) entity->info)->file_pos = offset;
 
@@ -142,8 +146,9 @@ int32_t rcar_register_io_dev_memdrv(const io_dev_connector_t **dev_con)
 	int32_t result;
 
 	result = io_register_device(&memdrv_dev_info);
-	if (result == IO_SUCCESS)
+	if (result == IO_SUCCESS) {
 		*dev_con = &memdrv_dev_connector;
+	}
 
 	return result;
 }

drivers/renesas/rcar/io/io_rcar.c

 /*
- * Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved.
+ * Copyright (c) 2015-2021, Renesas Electronics Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -8,8 +8,6 @@
 #include <stdint.h>
 #include <string.h>
 
-#include <platform_def.h>
-
 #include <arch_helpers.h>
 #include <common/bl_common.h>
 #include <common/debug.h>
@@ -24,6 +22,7 @@
 #include "io_rcar.h"
 #include "io_common.h"
 #include "io_private.h"
+#include <platform_def.h>
 
 extern int32_t plat_get_drv_source(uint32_t id, uintptr_t *dev,
 				   uintptr_t *image_spec);
@@ -39,7 +38,8 @@ typedef struct {
 } plat_rcar_name_offset_t;
 
 typedef struct {
-	/* Put position above the struct to allow {0} on static init.
+	/*
+	 * Put position above the struct to allow {0} on static init.
 	 * It is a workaround for a known bug in GCC
 	 * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
 	 */
@@ -59,7 +59,7 @@ typedef struct {
 #define RCAR_ATTR_SET_ISNOLOAD(a)	(((a) & 0x1) << 16U)
 #define RCAR_ATTR_SET_CERTOFF(a)	(((a) & 0xF) << 8U)
 #define RCAR_ATTR_SET_ALL(a, b, c)	((uint32_t)(RCAR_ATTR_SET_CALCADDR(a) |\
-					RCAR_ATTR_SET_ISNOLOAD(b) | 	\
+					RCAR_ATTR_SET_ISNOLOAD(b) |\
 					RCAR_ATTR_SET_CERTOFF(c)))
 
 #define RCAR_ATTR_GET_CALCADDR(a)	((a) & 0xFU)
@@ -136,9 +136,11 @@ int32_t rcar_get_certificate(const int32_t name, uint32_t *cert)
 {
 #if TRUSTED_BOARD_BOOT
 	int32_t i;
+
 	for (i = 0; i < ARRAY_SIZE(cert_offset); i++) {
-		if (name != cert_offset[i].name)
+		if (name != cert_offset[i].name) {
 			continue;
+		}
 
 		*cert = RCAR_CERT_SIZE;
 		*cert *= RCAR_ATTR_GET_CERTOFF(cert_offset[i].attr);
@@ -157,12 +159,14 @@ static int32_t file_to_offset(const int32_t name, uintptr_t *offset,
 	int32_t i;
 
 	for (i = 0; i < ARRAY_SIZE(name_offset); i++) {
-		if (name != name_offset[i].name)
+		if (name != name_offset[i].name) {
 			continue;
+		}
 
 		addr = RCAR_ATTR_GET_CALCADDR(name_offset[i].attr);
-		if (rcar_image_number + 2 < addr)
+		if (rcar_image_number + 2U < addr) {
 			continue;
+		}
 
 		*offset = rcar_image_header[addr];
 		*cert = RCAR_CERT_SIZE;
@@ -175,8 +179,9 @@ static int32_t file_to_offset(const int32_t name, uintptr_t *offset,
 
 #if TRUSTED_BOARD_BOOT
 	for (i = 0; i < ARRAY_SIZE(cert_offset); i++) {
-		if (name != cert_offset[i].name)
+		if (name != cert_offset[i].name) {
 			continue;
+		}
 
 		*no_load = RCAR_ATTR_GET_ISNOLOAD(cert_offset[i].attr);
 		*partition = 0U;
@@ -282,8 +287,9 @@ static int32_t check_load_area(uintptr_t dst, uintptr_t len)
 		result = IO_FAIL;
 	}
 done:
-	if (result == IO_FAIL)
+	if (result == IO_FAIL) {
 		ERROR("BL2: Out of range : dst=0x%lx len=0x%lx\n", dst, len);
+	}
 
 	return result;
 }
@@ -307,14 +313,15 @@ static int32_t load_bl33x(void)
 		BL338_IMAGE_ID
 	};
 
-	if (loaded != IO_NOT_SUPPORTED)
+	if (loaded != IO_NOT_SUPPORTED) {
 		return loaded;
+	}
 
 	for (i = 1; i < rcar_image_number; i++) {
 		rc = file_to_offset(img[i], &offset, &cert, &noload,
 				    &partition);
 		if (rc != IO_SUCCESS) {
-			WARN("load_bl33x: failed to get offset\n");
+			WARN("%s: failed to get offset\n", __func__);
 			loaded = IO_FAIL;
 			return loaded;
 		}
@@ -324,34 +331,34 @@ static int32_t load_bl33x(void)
 
 		rc = io_open(rcar_handle, rcar_spec, &handle);
 		if (rc != IO_SUCCESS) {
-			WARN("Failed to open FIP (%i)\n", rc);
+			WARN("%s: Failed to open FIP (%i)\n", __func__, rc);
 			loaded = IO_FAIL;
 			return loaded;
 		}
 
 		rc = io_seek(handle, IO_SEEK_SET, offset);
 		if (rc != IO_SUCCESS) {
-			WARN("load_bl33x: failed to seek\n");
+			WARN("%s: failed to seek\n", __func__);
 			loaded = IO_FAIL;
 			return loaded;
 		}
 
 		rc = check_load_area(dst, len);
 		if (rc != IO_SUCCESS) {
-			WARN("load_bl33x: check load area\n");
+			WARN("%s: check load area\n", __func__);
 			loaded = IO_FAIL;
 			return loaded;
 		}
 
 		rc = io_read(handle, dst, len, &cnt);
 		if (rc != IO_SUCCESS) {
-			WARN("load_bl33x: failed to read\n");
+			WARN("%s: failed to read\n", __func__);
 			loaded = IO_FAIL;
 			return loaded;
 		}
 #if TRUSTED_BOARD_BOOT
 		rc = auth_mod_verify_img(img[i], (void *)dst, len);
-		if (rc) {
+		if (rc != 0) {
 			memset((void *)dst, 0x00, len);
 			loaded = IO_FAIL;
 			return loaded;
@@ -367,8 +374,7 @@ static int32_t load_bl33x(void)
 
 static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name)
 {
-	uint64_t header[64] __aligned(FLASH_TRANS_SIZE_UNIT) = {
-	0};
+	uint64_t header[64] __aligned(FLASH_TRANS_SIZE_UNIT) = {0UL};
 	uintptr_t handle;
 	ssize_t offset;
 	uint32_t i;
@@ -382,8 +388,9 @@ static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name)
 		return IO_FAIL;
 	}
 
-	if (RCAR_CERT_LOAD == rcar_cert_load)
+	if (rcar_cert_load == RCAR_CERT_LOAD) {
 		return IO_SUCCESS;
+	}
 
 	rc = io_open(rcar_handle, rcar_spec, &handle);
 	if (rc != IO_SUCCESS) {
@@ -391,16 +398,18 @@ static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name)
 		return IO_FAIL;
 	}
 
-	/* get start address list   */
-	/* [0] address num          */
-	/* [1] BL33-1 image address */
-	/* [2] BL33-2 image address */
-	/* [3] BL33-3 image address */
-	/* [4] BL33-4 image address */
-	/* [5] BL33-5 image address */
-	/* [6] BL33-6 image address */
-	/* [7] BL33-7 image address */
-	/* [8] BL33-8 image address */
+	/*
+	 * get start address list
+	 * [0] address num
+	 * [1] BL33-1 image address
+	 * [2] BL33-2 image address
+	 * [3] BL33-3 image address
+	 * [4] BL33-4 image address
+	 * [5] BL33-5 image address
+	 * [6] BL33-6 image address
+	 * [7] BL33-7 image address
+	 * [8] BL33-8 image address
+	 */
 	offset = name == EMMC_DEV_ID ? RCAR_EMMC_CERT_HEADER :
 	    RCAR_FLASH_CERT_HEADER;
 	rc = io_seek(handle, IO_SEEK_SET, offset);
@@ -447,8 +456,9 @@ static int32_t rcar_dev_init(io_dev_info_t *dev_info, const uintptr_t name)
 	rcar_cert_load = RCAR_CERT_LOAD;
 error:
 
-	if (rc != IO_SUCCESS)
+	if (rc != IO_SUCCESS) {
 		rc = IO_FAIL;
+	}
 
 	io_close(handle);
 
@@ -464,13 +474,15 @@ static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec,
 	uint32_t noload, cert, len;
 	int32_t rc;
 
-	/* Only one file open at a time. We need to  track state (ie, file
-	 * cursor position). Since the header lives at * offset zero, this entry
+	/*
+	 * Only one file open at a time. We need to  track state (ie, file
+	 * cursor position). Since the header lives at offset zero, this entry
 	 * should never be zero in an active file.
 	 * Once the system supports dynamic memory allocation we will allow more
-	 * than one open file at a time. */
+	 * than one open file at a time.
+	 */
 	if (current_file.offset != 0U) {
-		WARN("rcar_file_open : Only one open file at a time.\n");
+		WARN("%s: Only one open file at a time.\n", __func__);
 		return IO_RESOURCES_EXHAUSTED;
 	}
 
@@ -480,7 +492,7 @@ static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec,
 		return IO_FAIL;
 	}
 
-	if (noload) {
+	if (noload != 0U) {
 		current_file.offset = 1;
 		current_file.dst = 0;
 		current_file.size = 1;
@@ -494,12 +506,10 @@ static int32_t rcar_file_open(io_dev_info_t *info, const uintptr_t file_spec,
 
 	rcar_read_certificate((uint64_t) cert, &len, &dst);
 
-	/*----------------*
-	 * Baylibre: HACK *
-	 *----------------*/
-	if (BL31_IMAGE_ID == spec->offset && len < RCAR_TRUSTED_SRAM_SIZE) {
-		WARN("r-car ignoring the BL31 size from certificate,"
-		     "using RCAR_TRUSTED_SRAM_SIZE instead\n");
+	/* Baylibre: HACK */
+	if (spec->offset == BL31_IMAGE_ID && len < RCAR_TRUSTED_SRAM_SIZE) {
+		WARN("%s,%s\n", "r-car ignoring the BL31 size from certificate",
+		     "using RCAR_TRUSTED_SRAM_SIZE instead");
 		len = RCAR_TRUSTED_SRAM_SIZE;
 	}
 
@@ -536,7 +546,7 @@ static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer,
 #else
 	static uint32_t load_bl33x_counter;
 #endif
-	if (current_file.no_load) {
+	if (current_file.no_load != 0U) {
 		*cnt = length;
 		return IO_SUCCESS;
 	}
@@ -551,14 +561,14 @@ static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer,
 
 	rc = io_seek(handle, IO_SEEK_SET, offset);
 	if (rc != IO_SUCCESS) {
-		WARN("rcar_file_read: failed to seek\n");
+		WARN("%s: failed to seek\n", __func__);
 		goto error;
 	}
 
 	if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33) {
 		rc = check_load_area(buffer, length);
 		if (rc != IO_SUCCESS) {
-			WARN("rcar_file_read: load area err\n");
+			WARN("%s: load area err\n", __func__);
 			goto error;
 		}
 	}
@@ -573,8 +583,9 @@ static int32_t rcar_file_read(io_entity_t *entity, uintptr_t buffer,
 	io_close(handle);
 
 	load_bl33x_counter += 1;
-	if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33X)
+	if (load_bl33x_counter == RCAR_COUNT_LOAD_BL33X) {
 		return load_bl33x();
+	}
 
 	return IO_SUCCESS;
 error:
@@ -584,8 +595,9 @@ error:
 
 static int32_t rcar_file_close(io_entity_t *entity)
 {
-	if (current_file.offset)
+	if (current_file.offset != 0U) {
 		memset(&current_file, 0, sizeof(current_file));
+	}
 
 	entity->info = 0U;
 
@@ -634,8 +646,9 @@ int32_t rcar_register_io_dev(const io_dev_connector_t **dev_con)
 	int32_t result;
 
 	result = io_register_device(&rcar_dev_info);
-	if (result == IO_SUCCESS)
+	if (result == IO_SUCCESS) {
 		*dev_con = &rcar_dev_connector;
+	}
 
 	return result;
 }