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[ARM] Fix Assabet reboot with SA1100 MTD map driver 

Unfortunately, some devices forgot to reset the flash on reboot.
Arrange for the map driver to suspend & resume the flash to
ensure that it is in a sane state before rebooting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-10-29 16:14:08 +01:00 committed by Russell King
parent 183e1a3494
commit 13bfb34c10
1 changed files with 9 additions and 0 deletions
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9
drivers/mtd/maps/sa1100-flash.c
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@ -440,9 +440,17 @@ static int sa1100_mtd_resume(struct device *dev)
info->mtd->resume(info->mtd); info->mtd->resume(info->mtd);
return 0; return 0;
} }
static void sa1100_mtd_shutdown(struct device *dev)
{
struct sa_info *info = dev_get_drvdata(dev);
if (info && info->mtd->suspend(info->mtd) == 0)
info->mtd->resume(info->mtd);
}
#else #else
#define sa1100_mtd_suspend NULL #define sa1100_mtd_suspend NULL
#define sa1100_mtd_resume NULL #define sa1100_mtd_resume NULL
#define sa1100_mtd_shutdown NULL
#endif #endif
static struct device_driver sa1100_mtd_driver = { static struct device_driver sa1100_mtd_driver = {
@ -452,6 +460,7 @@ static struct device_driver sa1100_mtd_driver = {
.remove = __exit_p(sa1100_mtd_remove), .remove = __exit_p(sa1100_mtd_remove),
.suspend = sa1100_mtd_suspend, .suspend = sa1100_mtd_suspend,
.resume = sa1100_mtd_resume, .resume = sa1100_mtd_resume,
.shutdown = sa1100_mtd_shutdown,
}; };
static int __init sa1100_mtd_init(void) static int __init sa1100_mtd_init(void)