Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index a459a5e..a84cc88 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * machine.h -- SoC Regulator support, machine/board driver API.
  *
@@ -5,10 +6,6 @@
  *
  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
  *
- * 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.
- *
  * Regulator Machine/Board Interface.
  */
 
@@ -156,7 +153,10 @@
 	int system_load;
 
 	/* used for coupled regulators */
-	int max_spread;
+	u32 *max_spread;
+
+	/* used for changing voltage in steps */
+	int max_uV_step;
 
 	/* valid regulator operating modes for this machine */
 	unsigned int valid_modes_mask;