[RESEND PATCH v2 41/53] mtd: nand: do not check R/B# for CMD_SET_FEATURES in nand_command(_lp)
Masahiro Yamada
yamada.masahiro at socionext.com
Wed Mar 22 17:17:50 PDT 2017
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 at socionext.com>
---
Changes in v2:
- Newly added
drivers/mtd/nand/nand_base.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index c4c3329..e13f959 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -669,6 +669,7 @@ 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:
@@ -788,6 +789,7 @@ static void nand_command_lp(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_RNDIN:
--
2.7.4
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