Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 079063d..138841e 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for CS4231 sound chips found on Sparcs.
  * Copyright (C) 2002, 2008 David S. Miller <davem@davemloft.net>
@@ -2071,12 +2072,12 @@
 static int cs4231_probe(struct platform_device *op)
 {
 #ifdef EBUS_SUPPORT
-	if (!strcmp(op->dev.of_node->parent->name, "ebus"))
+	if (of_node_name_eq(op->dev.of_node->parent, "ebus"))
 		return cs4231_ebus_probe(op);
 #endif
 #ifdef SBUS_SUPPORT
-	if (!strcmp(op->dev.of_node->parent->name, "sbus") ||
-	    !strcmp(op->dev.of_node->parent->name, "sbi"))
+	if (of_node_name_eq(op->dev.of_node->parent, "sbus") ||
+	    of_node_name_eq(op->dev.of_node->parent, "sbi"))
 		return cs4231_sbus_probe(op);
 #endif
 	return -ENODEV;