mtd: rawnand: Avoid a typedef

In new code, the use of typedef is discouraged. Turn this one in the
raw NAND core into a regular enumeration.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200526195633.11543-3-miquel.raynal@bootlin.com

drivers/mtd/nand/raw/nand_base.c

@@ -5099,8 +5099,8 @@ static int of_get_nand_ecc_mode(struct device_node *np)
 
 	/*
 	 * For backward compatibility we support few obsoleted values that don't
-	 * have their mappings into nand_ecc_modes_t anymore (they were merged
-	 * with other enums).
+	 * have their mappings into the nand_ecc_mode enum anymore (they were
+	 * merged with other enums).
 	 */
 	if (!strcasecmp(pm, "soft_bch"))
 		return NAND_ECC_SOFT;

include/linux/mtd/rawnand.h

@@ -83,14 +83,14 @@ struct nand_chip;
 /*
  * Constants for ECC_MODES
  */
-typedef enum {
+enum nand_ecc_mode {
 	NAND_ECC_NONE,
 	NAND_ECC_SOFT,
 	NAND_ECC_HW,
 	NAND_ECC_HW_SYNDROME,
 	NAND_ECC_HW_OOB_FIRST,
 	NAND_ECC_ON_DIE,
-} nand_ecc_modes_t;
+};
 
 enum nand_ecc_algo {
 	NAND_ECC_UNKNOWN,
@@ -362,7 +362,7 @@ static const struct nand_ecc_caps __name = {			\
  * @write_oob:	function to write chip OOB data
  */
 struct nand_ecc_ctrl {
-	nand_ecc_modes_t mode;
+	enum nand_ecc_mode mode;
 	enum nand_ecc_algo algo;
 	int steps;
 	int size;

include/linux/platform_data/mtd-davinci.h

@@ -68,7 +68,7 @@ struct davinci_nand_pdata {		/* platform_data */
 	 * Newer ones also support 4-bit ECC, but are awkward
 	 * using it with large page chips.
 	 */
-	nand_ecc_modes_t	ecc_mode;
+	enum nand_ecc_mode	ecc_mode;
 	u8			ecc_bits;
 
 	/* e.g. NAND_BUSWIDTH_16 */

include/linux/platform_data/mtd-nand-s3c2410.h

@@ -49,7 +49,7 @@ struct s3c2410_platform_nand {
 
 	unsigned int	ignore_unset_ecc:1;
 
-	nand_ecc_modes_t	ecc_mode;
+	enum nand_ecc_mode	ecc_mode;
 
 	int			nr_sets;
 	struct s3c2410_nand_set *sets;