Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index f85a1a9..d4a5f8a 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  linux/drivers/rtc/rtc-pl030.c
  *
  *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/rtc.h>
@@ -112,6 +109,13 @@
 		goto err_rtc;
 	}
 
+	rtc->rtc = devm_rtc_allocate_device(&dev->dev);
+	if (IS_ERR(rtc->rtc)) {
+		ret = PTR_ERR(rtc->rtc);
+		goto err_rtc;
+	}
+
+	rtc->rtc->ops = &pl030_ops;
 	rtc->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!rtc->base) {
 		ret = -ENOMEM;
@@ -128,12 +132,9 @@
 	if (ret)
 		goto err_irq;
 
-	rtc->rtc = rtc_device_register("pl030", &dev->dev, &pl030_ops,
-				       THIS_MODULE);
-	if (IS_ERR(rtc->rtc)) {
-		ret = PTR_ERR(rtc->rtc);
+	ret = rtc_register_device(rtc->rtc);
+	if (ret)
 		goto err_reg;
-	}
 
 	return 0;
 
@@ -154,7 +155,6 @@
 	writel(0, rtc->base + RTC_CR);
 
 	free_irq(dev->irq[0], rtc);
-	rtc_device_unregister(rtc->rtc);
 	iounmap(rtc->base);
 	amba_release_regions(dev);