mtd: nand: do not check R/B# for CMD_SET_FEATURES in nand_command(_lp)

Set Features (0xEF) command toggles the R/B# pin after 4 sub feature
parameters are written.

Currently, nand_command(_lp) calls chip->dev_ready immediately after
the address cycle because NAND_CMD_SET_FEATURES falls into default:
label.  No wait is needed at this point.

If you see nand_onfi_set_features(), R/B# is already cared by the
chip->waitfunc call.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[ Linux commit: c5d664aa5a4c4b257a54eb35045031630d105f49 ]

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index be2dc15..5bb4ea8 100644 (file)
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -652,6 +652,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
        case NAND_CMD_SEQIN:
        case NAND_CMD_STATUS:
        case NAND_CMD_READID:
+       case NAND_CMD_SET_FEATURES:
                return;
 
        case NAND_CMD_RESET:
@@ -750,6 +751,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
        case NAND_CMD_RNDIN:
        case NAND_CMD_STATUS:
        case NAND_CMD_READID:
+       case NAND_CMD_SET_FEATURES:
                return;
 
        case NAND_CMD_RESET: