From 6f29c7a8f1fa8abef167d9017947cf090e39d60e Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 15 Sep 2017 21:44:58 +0900 Subject: [PATCH] mtd: nand: do not check R/B# for CMD_READID in nand_command(_lp) 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 Signed-off-by: Boris Brezillon [ Linux commit: 3158fa0e739615769cc047d2428f30f4c3b6640e ] --- 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 b025001337..be2dc15887 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -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: -- 2.39.5