Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c
index c017486..88d409e 100644
--- a/drivers/net/phy/mdio-mux-bcm-iproc.c
+++ b/drivers/net/phy/mdio-mux-bcm-iproc.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2016 Broadcom
- *
- * 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 (the "GPL").
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 (GPLv2) for more details.
- *
- * You should have received a copy of the GNU General Public License
- * version 2 (GPLv2) along with this source code.
  */
 #include <linux/clk.h>
 #include <linux/platform_device.h>
@@ -289,8 +278,7 @@
 #ifdef CONFIG_PM_SLEEP
 static int mdio_mux_iproc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev);
+	struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
 
 	clk_disable_unprepare(md->core_clk);
 
@@ -299,8 +287,7 @@
 
 static int mdio_mux_iproc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev);
+	struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
 
 	clk_prepare_enable(md->core_clk);
 	mdio_mux_iproc_config(md);