mtd: maps: physmap: Add reference counter to set_vpp()

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This patch is part of a set which fixes unnecessary flash erase and write errors
resulting from the MTD CFI driver turning off vpp while an erase is in progress.
This patch allows physmap_set_vpp() calls to be nested by adding a reference
counter.

omap1_set_vpp() already used a reference counter. Since it is called from
physmap_set_vpp(), omap1_set_vpp() can now be simplified.

simtec_nor_vpp() already disabled hard interrupts. Since it is called from
physmap_set_vpp(), simtec_nor_vpp() can now be simplified.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

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Paul Parsons 2012-03-07 14:12:08 +00:00 • committed by David Woodhouse

parent e7d9377e04

commit 876fe76d79

3 changed files with 26 additions and 19 deletions

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20

arch/arm/mach-omap1/flash.c

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3

arch/arm/mach-s3c2410/nor-simtec.c

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22

drivers/mtd/maps/physmap.c

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