[MTD] support driver model updates

Follow-on patch to the previous driver model patch for the MTD
framework.  This one makes various MTD drivers connect to the
driver model tree, so /sys/devices/virtual/mtd/* nodes are no
longer present ... mostly drivers used on boards I have handy.

Based on a patch from Kay Sievers.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 98b0faf..8185b1f 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -672,6 +672,8 @@
 		flash->mtd.erasesize = info->sector_size;
 	}
 
+	flash->mtd.dev.parent = &spi->dev;
+
 	dev_info(&spi->dev, "%s (%lld Kbytes)\n", info->name,
 			(long long)flash->mtd.size >> 10);
 
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index d95f74a..62dee54 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -664,6 +664,8 @@
 	device->write = dataflash_write;
 	device->priv = priv;
 
+	device->dev.parent = &spi->dev;
+
 	if (revision >= 'c')
 		otp_tag = otp_setup(device, revision);