v4.19.13 snapshot.
diff --git a/include/linux/pda_power.h b/include/linux/pda_power.h
new file mode 100644
index 0000000..2bb62bf
--- /dev/null
+++ b/include/linux/pda_power.h
@@ -0,0 +1,42 @@
+/*
+ * Common power driver for PDAs and phones with one or two external
+ * power supplies (AC/USB) connected to main and backup batteries,
+ * and optional builtin charger.
+ *
+ * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
+ *
+ * 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.
+ */
+
+#ifndef __PDA_POWER_H__
+#define __PDA_POWER_H__
+
+#define PDA_POWER_CHARGE_AC  (1 << 0)
+#define PDA_POWER_CHARGE_USB (1 << 1)
+
+struct device;
+
+struct pda_power_pdata {
+	int (*init)(struct device *dev);
+	int (*is_ac_online)(void);
+	int (*is_usb_online)(void);
+	void (*set_charge)(int flags);
+	void (*exit)(struct device *dev);
+	int (*suspend)(pm_message_t state);
+	int (*resume)(void);
+
+	char **supplied_to;
+	size_t num_supplicants;
+
+	unsigned int wait_for_status; /* msecs, default is 500 */
+	unsigned int wait_for_charger; /* msecs, default is 500 */
+	unsigned int polling_interval; /* msecs, default is 2000 */
+
+	unsigned long ac_max_uA; /* current to draw when on AC */
+
+	bool use_otg_notifier;
+};
+
+#endif /* __PDA_POWER_H__ */