AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-26 09:40:54 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

mtd: chips: cfi_cmdset_0002: Match ENABLE_VPP()/DISABLE_VPP() calls

Browse Source 
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 ensures that only those flash operations which call ENABLE_VPP() can
then call DISABLE_VPP(). Other operations should never call DISABLE_VPP().

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>
This commit is contained in:
Paul Parsons 2012-03-07 14:11:16 +00:00 committed by David Woodhouse
parent 85e5b2f298
commit e7d9377e04
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mtd/chips/cfi_cmdset_0002.c
View File

@ -774,8 +774,6 @@ static void put_chip(struct map_info *map, struct flchip *chip, unsigned long ad
case FL_READY:
case FL_STATUS:
/* We should really make set_vpp() count, rather than doing this */
DISABLE_VPP(map);
break;
default:
printk(KERN_ERR "MTD: put_chip() called with oldstate %d!!\n", chip->oldstate);
@ -1229,6 +1227,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
xip_enable(map, chip, adr);
op_done:
chip->state = FL_READY;
DISABLE_VPP(map);
put_chip(map, chip, adr);
mutex_unlock(&chip->mutex);
@ -1467,6 +1466,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
ret = -EIO;
op_done:
chip->state = FL_READY;
DISABLE_VPP(map);
put_chip(map, chip, adr);
mutex_unlock(&chip->mutex);
@ -1868,6 +1868,7 @@ static int __xipram do_erase_chip(struct map_info *map, struct flchip *chip)
chip->state = FL_READY;
xip_enable(map, chip, adr);
DISABLE_VPP(map);
put_chip(map, chip, adr);
mutex_unlock(&chip->mutex);
@ -1958,6 +1959,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
}
chip->state = FL_READY;
DISABLE_VPP(map);
put_chip(map, chip, adr);
mutex_unlock(&chip->mutex);
return ret;