Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 203ed4a..b5647e3 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Support for IDE interfaces on PowerMacs.
  *
@@ -7,11 +8,6 @@
  *  Copyright (C) 1998-2003 Paul Mackerras & Ben. Herrenschmidt
  *  Copyright (C) 2007-2008 Bartlomiej Zolnierkiewicz
  *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
  * Some code taken from drivers/ide/ide-dma.c:
  *
  *  Copyright (c) 1995-1998  Mark Lord
@@ -20,7 +16,6 @@
  * get rid of the "rounded" tables used previously, so we have the
  * same table format for all controllers and can then just have one
  * big table
- * 
  */
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -1046,7 +1041,7 @@
 		d.port_ops = &pmac_ide_ata4_port_ops;
 		d.udma_mask = ATA_UDMA5;
 	} else if (of_device_is_compatible(np, "keylargo-ata")) {
-		if (strcmp(np->name, "ata-4") == 0) {
+		if (of_node_name_eq(np, "ata-4")) {
 			pmif->kind = controller_kl_ata4;
 			d.port_ops = &pmac_ide_ata4_port_ops;
 			d.udma_mask = ATA_UDMA4;