rtc: make rtc-ds1742 driver hotplug-aware

The rtc-ds1742 platform driver name doesn't match its module name,
which might prevents it from properly hotplugging.  There is only two
in-tree user of its driver, which are fixed by this patch too.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/mips/jmr3927/rbhma3100/setup.c

@@ -425,7 +425,7 @@ static int __init jmr3927_rtc_init(void)
 		.flags	= IORESOURCE_MEM,
 	};
 	struct platform_device *dev;
-	dev = platform_device_register_simple("ds1742", -1, &res, 1);
+	dev = platform_device_register_simple("rtc-ds1742", -1, &res, 1);
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 device_initcall(jmr3927_rtc_init);

arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c

@@ -963,7 +963,7 @@ static int __init toshiba_rbtx4927_rtc_init(void)
 		.flags	= IORESOURCE_MEM,
 	};
 	struct platform_device *dev =
-		platform_device_register_simple("ds1742", -1, &res, 1);
+		platform_device_register_simple("rtc-ds1742", -1, &res, 1);
 	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
 }
 device_initcall(toshiba_rbtx4927_rtc_init);

drivers/rtc/rtc-ds1742.c

@@ -251,7 +251,7 @@ static struct platform_driver ds1742_rtc_driver = {
 	.probe		= ds1742_rtc_probe,
 	.remove		= __devexit_p(ds1742_rtc_remove),
 	.driver		= {
-		.name	= "ds1742",
+		.name	= "rtc-ds1742",
 		.owner	= THIS_MODULE,
 	},
 };