From fe3fddfad71aa228eedcc78a58b34d056724b2c9 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 15 Sep 2017 21:44:59 +0900 Subject: [PATCH] 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 Signed-off-by: Boris Brezillon [ Linux commit: c5d664aa5a4c4b257a54eb35045031630d105f49 ] --- 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 be2dc15887..5bb4ea859b 100644 --- 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: -- 2.39.5