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

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=c5d664aa5a4c4b257a54eb35045031630d105f49
Commit:     c5d664aa5a4c4b257a54eb35045031630d105f49
Parent:     3158fa0e739615769cc047d2428f30f4c3b6640e
Author:     Masahiro Yamada <yamada.masahiro at socionext.com>
AuthorDate: Thu Mar 23 09:17:50 2017 +0900
Committer:  Boris Brezillon <boris.brezillon at free-electrons.com>
CommitDate: Fri Mar 24 10:07:40 2017 +0100

    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 at socionext.com>
    Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
 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 b7daede..c4c3386 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: