sf: Minor cleanups.

- Add comments.
- Renamed few macros.
- Add tabs.
Signed-off-by: NJagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: NBo Shen <voice.shen@atmel.com>

drivers/mtd/spi/sf_internal.h

@@ -7,8 +7,8 @@
  * Licensed under the GPL-2 or later.
  */
 
-#ifndef _SPI_FLASH_INTERNAL_H_
-#define _SPI_FLASH_INTERNAL_H_
+#ifndef _SF_INTERNAL_H_
+#define _SF_INTERNAL_H_
 
 #define SPI_FLASH_16MB_BOUN		0x1000000
 
@@ -139,4 +139,4 @@ int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
 int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
 		size_t len, void *data);
 
-#endif /* _SPI_FLASH_INTERNAL_H_ */
+#endif /* _SF_INTERNAL_H_ */

drivers/mtd/spi/sf_ops.c

@@ -292,7 +292,7 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset,
 			return ret;
 		}
 #endif
-		remain_len = (SPI_FLASH_16MB_BOUN * (bank_sel + 1) - offset);
+		remain_len = (SPI_FLASH_16MB_BOUN * (bank_sel + 1)) - offset;
 		if (len < remain_len)
 			read_len = len;
 		else

drivers/mtd/spi/sf_probe.c

@@ -25,7 +25,7 @@ DECLARE_GLOBAL_DATA_PTR;
  * @jedec:		Device jedec ID (0x[1byte_manuf_id][2byte_dev_id])
  * @ext_jedec:		Device ext_jedec ID
  * @sector_size:	Sector size of this device
- * @nr_sectors:	No.of sectors on this device
+ * @nr_sectors:		No.of sectors on this device
  * @flags:		Importent param, for flash specific behaviour
  */
 struct spi_flash_params {
@@ -139,7 +139,7 @@ static const struct spi_flash_params spi_flash_params_table[] = {
 #endif
 	/*
 	 * Note:
-	 * Below paired flash devices has similar spi_flash_params params.
+	 * Below paired flash devices has similar spi_flash params.
 	 * (S25FL129P_64K, S25FL128S_64K)
 	 * (W25Q80BL, W25Q80BV)
 	 * (W25Q16CL, W25Q16DV)
@@ -188,6 +188,7 @@ static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi,
 	}
 	memset(flash, '\0', sizeof(*flash));
 
+	/* Assign spi data */
 	flash->spi = spi;
 	flash->name = params->name;
 	flash->memory_map = spi->memory_map;

include/spi.h

 /*
+ * Common SPI Interface: Controller-specific definitions
+ *
  * (C) Copyright 2001
  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
  *
@@ -8,8 +10,6 @@
 #ifndef _SPI_H_
 #define _SPI_H_
 
-/* Controller-specific definitions: */
-
 /* SPI mode flags */
 #define	SPI_CPHA	0x01			/* clock phase */
 #define	SPI_CPOL	0x02			/* clock polarity */
@@ -241,11 +241,11 @@ static inline int spi_w8r8(struct spi_slave *slave, unsigned char byte)
  * This calls spi_setup_slave() with the correct bus number. Call
  * spi_free_slave() to free it later.
  *
- * @param blob		Device tree blob
- * @param node		SPI peripheral node to use
- * @param cs		Chip select to use
- * @param max_hz	Maximum SCK rate in Hz (0 for default)
- * @param mode		Clock polarity, clock phase and other parameters
+ * @param blob:		Device tree blob
+ * @param node:		SPI peripheral node to use
+ * @param cs:		Chip select to use
+ * @param max_hz:	Maximum SCK rate in Hz (0 for default)
+ * @param mode:		Clock polarity, clock phase and other parameters
  * @return pointer to new spi_slave structure
  */
 struct spi_slave *spi_setup_slave_fdt(const void *blob, int node,