mtd: nand: omap: drop condition with no effect

The if and the else branch code are identical - so the condition has no
effect on the effective code. This patch removes the condition and the
duplicated code and updates the documentation as suggested by
Roger Quadros <rogerq@ti.com>.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Reviewed-by: Pekon Gupta <pekon@pek-sem.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 9 insertions, 22 deletions

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 63f858e6bf39..60fa89939c24 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1048,10 +1048,9 @@ static int omap_dev_ready(struct mtd_info *mtd)
  * @mtd: MTD device structure
  * @mode: Read/Write mode
  *
- * When using BCH, sector size is hardcoded to 512 bytes.
- * Using wrapping mode 6 both for reading and writing if ELM module not uses
- * for error correction.
- * On writing,
+ * When using BCH with SW correction (i.e. no ELM), sector size is set
+ * to 512 bytes and we use BCH_WRAPMODE_6 wrapping mode
+ * for both reading and writing with:
  * eccsize0 = 0  (no additional protected byte in spare area)
  * eccsize1 = 32 (skip 32 nibbles = 16 bytes per sector in spare area)
  */
@@ -1071,15 +1070,9 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode)
         case OMAP_ECC_BCH4_CODE_HW_DETECTION_SW:
                 bch_type = 0;
                 nsectors = 1;
-                if (mode == NAND_ECC_READ) {
-                        wr_mode   = BCH_WRAPMODE_6;
-                        ecc_size0 = BCH_ECC_SIZE0;
-                        ecc_size1 = BCH_ECC_SIZE1;
-                } else {
-                        wr_mode   = BCH_WRAPMODE_6;
-                        ecc_size0 = BCH_ECC_SIZE0;
-                        ecc_size1 = BCH_ECC_SIZE1;
-                }
+                wr_mode   = BCH_WRAPMODE_6;
+                ecc_size0 = BCH_ECC_SIZE0;
+                ecc_size1 = BCH_ECC_SIZE1;
                 break;
         case OMAP_ECC_BCH4_CODE_HW:
                 bch_type = 0;
@@ -1097,15 +1090,9 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode)
         case OMAP_ECC_BCH8_CODE_HW_DETECTION_SW:
                 bch_type = 1;
                 nsectors = 1;
-                if (mode == NAND_ECC_READ) {
-                        wr_mode   = BCH_WRAPMODE_6;
-                        ecc_size0 = BCH_ECC_SIZE0;
-                        ecc_size1 = BCH_ECC_SIZE1;
-                } else {
-                        wr_mode   = BCH_WRAPMODE_6;
-                        ecc_size0 = BCH_ECC_SIZE0;
-                        ecc_size1 = BCH_ECC_SIZE1;
-                }
+                wr_mode   = BCH_WRAPMODE_6;
+                ecc_size0 = BCH_ECC_SIZE0;
+                ecc_size1 = BCH_ECC_SIZE1;
                 break;
         case OMAP_ECC_BCH8_CODE_HW:
                 bch_type = 1;