bdk: max17050: add version check

bdk/power/max17050.c

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2011 Samsung Electronics
  * MyungJoo Ham <myungjoo.ham@samsung.com>
- * Copyright (c) 2018 CTCaer
+ * Copyright (c) 2018-2025 CTCaer
  *
  * 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
@@ -60,6 +60,18 @@ static u16 max17050_get_reg(u8 reg)
 	return data;
 }
 
+int max17050_get_version(u32 *value)
+{
+	u16 data = max17050_get_reg(MAX17050_DevName);
+	if (value)
+		*value = data;
+
+	if (data == 0x00AC)
+		return 0;
+	else
+		return -1;
+}
+
 int max17050_get_property(enum MAX17050_reg reg, int *value)
 {
 	u16 data;

bdk/power/max17050.h

@@ -130,6 +130,7 @@ enum MAX17050_reg {
 	MAX17050_VFSOC			= 0xFF,
 };
 
+int  max17050_get_version(u32 *value);
 int  max17050_get_property(enum MAX17050_reg reg, int *value);
 int  max17050_fix_configuration();
 void max17050_dump_regs(void *buf);