Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/clk/imx/clk-fixup-mux.c b/drivers/clk/imx/clk-fixup-mux.c
index c9b327e..b569d91 100644
--- a/drivers/clk/imx/clk-fixup-mux.c
+++ b/drivers/clk/imx/clk-fixup-mux.c
@@ -1,12 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (C) 2013 Freescale Semiconductor, Inc.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
  */
 
 #include <linux/clk-provider.h>
@@ -69,13 +63,14 @@
 	.set_parent = clk_fixup_mux_set_parent,
 };
 
-struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
-			      u8 shift, u8 width, const char **parents,
+struct clk_hw *imx_clk_hw_fixup_mux(const char *name, void __iomem *reg,
+			      u8 shift, u8 width, const char * const *parents,
 			      int num_parents, void (*fixup)(u32 *val))
 {
 	struct clk_fixup_mux *fixup_mux;
-	struct clk *clk;
+	struct clk_hw *hw;
 	struct clk_init_data init;
+	int ret;
 
 	if (!fixup)
 		return ERR_PTR(-EINVAL);
@@ -98,9 +93,13 @@
 	fixup_mux->ops = &clk_mux_ops;
 	fixup_mux->fixup = fixup;
 
-	clk = clk_register(NULL, &fixup_mux->mux.hw);
-	if (IS_ERR(clk))
-		kfree(fixup_mux);
+	hw = &fixup_mux->mux.hw;
 
-	return clk;
+	ret = clk_hw_register(NULL, hw);
+	if (ret) {
+		kfree(fixup_mux);
+		return ERR_PTR(ret);
+	}
+
+	return hw;
 }