mfd: Move twl-core device_init_wakeup to after platform_device_add

device_init_wakeup uses the dev_name() of the device to set the
name of the wakeup_source which appears in
/sys/kernel/debug/wakeup_sources.

For a platform device, that name is not set until platform_device_add
calls dev_set_name.

So the call to device_init_wakeup() must be after the call to
platform_device_add().
Making this change causes correct names to appear in the
wakeup_sources file.
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/twl-core.c

@@ -568,7 +568,6 @@ add_numbered_child(unsigned chip, const char *name, int num,
 		goto err;
 	}
 
-	device_init_wakeup(&pdev->dev, can_wakeup);
 	pdev->dev.parent = &twl->client->dev;
 
 	if (pdata) {
@@ -593,6 +592,8 @@ add_numbered_child(unsigned chip, const char *name, int num,
 	}
 
 	status = platform_device_add(pdev);
+	if (status == 0)
+		device_init_wakeup(&pdev->dev, can_wakeup);
 
 err:
 	if (status < 0) {