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

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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 ]
This commit is contained in:
Masahiro Yamada 2017-09-15 21:44:59 +09:00
parent 6f29c7a8f1
commit fe3fddfad7
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/nand_base.c
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@ -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: