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mtd: rawnand: initialize ntargets with maxchips 

memorg->ntargets is initialized with '1'. It should be initialized with
the maxchips argument from nand_scan() instead. Otherwise multi chip
support errors out on the secondary chip selects when trying to call
nand_reset() on them:

WARNING: CPU: 0 PID: 1 at drivers/mtd/nand/raw/internals.h:114
nand_reset_op+0x194/0x1c4

With this memorg->ntargets is initialized with the maximum number of
chip selects supported by the driver. After having detected the number
of actually connected chips memory->ntargets is updated with that
number.

Fixes: 32813e2884 ("mtd: rawnand: Get rid of chip->numchips")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
hifive-unleashed-5.2
Sascha Hauer 2019-05-21 10:43:35 +02:00 committed by Miquel Raynal
parent a188339ca5
commit b2b5921fe4
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/nand/raw/nand_base.c
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@ -4666,7 +4666,6 @@ static int nand_detect(struct nand_chip *chip, struct nand_flash_dev *type)
memorg = nanddev_get_memorg(&chip->base);
memorg->planes_per_lun = 1;
memorg->luns_per_target = 1;
memorg->ntargets = 1;
/*
* Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
@ -5031,6 +5030,8 @@ static int nand_scan_ident(struct nand_chip *chip, unsigned int maxchips,
if (ret)
return ret;
memorg->ntargets = maxchips;
/* Read the flash type */
ret = nand_detect(chip, table);
if (ret) {