mtd: rawnand: Pass the CS line to be selected in struct nand_operation

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In order to deprecate the ->select_chip hook we need to pass the CS
line a NAND operations are targeting. This is done through the
addition of a cs field to the nand_operation struct.

We also need to keep track of the currently selected target to
properly initialize op->cs, hence the ->cur_cs field addition to the
nand_chip struct.

Note that op->cs is not assigned in nand_exec_op() because we might
rework the way we execute NAND operations in the future (adopt a
queuing mechanism instead of the serialization we have right now).

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

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This commit is contained in:

Boris Brezillon 2018-11-11 08:55:15 +01:00 • committed by Miquel Raynal

parent 1d0178593d

commit ae2294b10b

4 changed files with 37 additions and 20 deletions

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3

drivers/mtd/nand/raw/internals.h

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39

drivers/mtd/nand/raw/nand_base.c

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4

drivers/mtd/nand/raw/nand_hynix.c

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11

include/linux/mtd/rawnand.h

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