mtd: atmel_nand: remove pmecc_bytes_per_sector, use chip->ecc.bytes instead

For PMECC, the pmecc_bytes_per_sector has same meaning as ecc.bytes.
So remove pmecc_bytes_per_sector and use ecc.bytes instead.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 5c76704..19d1e9d 100644 (file)
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -131,7 +131,6 @@ struct atmel_nand_host {
        u32                     pmecc_lookup_table_offset_512;
        u32                     pmecc_lookup_table_offset_1024;
 
-       int                     pmecc_bytes_per_sector;
        int                     pmecc_degree;   /* Degree of remainders */
        int                     pmecc_cw_len;   /* Length of codeword */
 
@@ -843,7 +842,7 @@ static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc,
                                pos, bit_pos, err_byte, *(buf + byte_pos));
                } else {
                        /* Bit flip in OOB area */
-                       tmp = sector_num * host->pmecc_bytes_per_sector
+                       tmp = sector_num * nand_chip->ecc.bytes
                                        + (byte_pos - sector_size);
                        err_byte = ecc[tmp];
                        ecc[tmp] ^= (1 << bit_pos);
@@ -892,7 +891,7 @@ normal_check:
                                return -EIO;
                        } else {
                                pmecc_correct_data(mtd, buf_pos, ecc, i,
-                                       host->pmecc_bytes_per_sector, err_nbr);
+                                       nand_chip->ecc.bytes, err_nbr);
                                mtd->ecc_stats.corrected += err_nbr;
                                total_err += err_nbr;
                        }
@@ -987,10 +986,10 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd,
        }
 
        for (i = 0; i < chip->ecc.steps; i++) {
-               for (j = 0; j < host->pmecc_bytes_per_sector; j++) {
+               for (j = 0; j < chip->ecc.bytes; j++) {
                        int pos;
 
-                       pos = i * host->pmecc_bytes_per_sector + j;
+                       pos = i * chip->ecc.bytes + j;
                        chip->oob_poi[eccpos[pos]] =
                                pmecc_readb_ecc_relaxed(host->ecc, i, j);
                }
@@ -1186,14 +1185,12 @@ static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
                host->pmecc_degree = (sector_size == 512) ?
                        PMECC_GF_DIMENSION_13 : PMECC_GF_DIMENSION_14;
                host->pmecc_cw_len = (1 << host->pmecc_degree) - 1;
-               host->pmecc_bytes_per_sector = pmecc_get_ecc_bytes(
-                       cap, sector_size);
                host->pmecc_alpha_to = pmecc_get_alpha_to(host);
                host->pmecc_index_of = host->pmecc_rom_base +
                        host->pmecc_lookup_table_offset;
 
                nand_chip->ecc.strength = cap;
-               nand_chip->ecc.bytes = host->pmecc_bytes_per_sector;
+               nand_chip->ecc.bytes = pmecc_get_ecc_bytes(cap, sector_size);
                nand_chip->ecc.steps = mtd->writesize / sector_size;
                nand_chip->ecc.total = nand_chip->ecc.bytes *
                        nand_chip->ecc.steps;