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

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Read ID (0x90) command does not toggle the R/B# pin.  Without this
patch, NAND_CMD_READID falls into the default: label, then R/B# is
checked by chip->dev_ready().

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

[ Linux commit: 3158fa0e739615769cc047d2428f30f4c3b6640e ]
This commit is contained in:
Masahiro Yamada 2017-09-15 21:44:58 +09:00
parent ce3ba458a8
commit 6f29c7a8f1
1 changed files with 2 additions and 0 deletions
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2
drivers/mtd/nand/nand_base.c
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@ -651,6 +651,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_ERASE2:
case NAND_CMD_SEQIN:
case NAND_CMD_STATUS:
case NAND_CMD_READID:
return;
case NAND_CMD_RESET:
@ -748,6 +749,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_SEQIN:
case NAND_CMD_RNDIN:
case NAND_CMD_STATUS:
case NAND_CMD_READID:
return;
case NAND_CMD_RESET: