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Commit 13bfb34c authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[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: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 183e1a34

drivers/mtd/maps/sa1100-flash.c

+9 −0
Original line number Diff line number Diff line
@@ -440,9 +440,17 @@ static int sa1100_mtd_resume(struct device *dev) 
		info->mtd->resume(info->mtd);

	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

#define sa1100_mtd_suspend NULL

#define sa1100_mtd_resume  NULL

#define sa1100_mtd_shutdown NULL

#endif



static struct device_driver sa1100_mtd_driver = {
@@ -452,6 +460,7 @@ static struct device_driver sa1100_mtd_driver = { 
	.remove		= __exit_p(sa1100_mtd_remove),

	.suspend	= sa1100_mtd_suspend,

	.resume		= sa1100_mtd_resume,

	.shutdown	= sa1100_mtd_shutdown,

};



static int __init sa1100_mtd_init(void)