Add samsung specific changes

include/linux/host_notify.h

@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *  Host notify class driver
+ *
+ * Copyright (C) 2011-2023 Samsung, Inc.
+ * Author: Dongrak Shin <dongrak.shin@samsung.com>
+ *
+ */
+
+ /* usb notify layer v4.0 */
+
+#ifndef __LINUX_HOST_NOTIFY_H__
+#define __LINUX_HOST_NOTIFY_H__
+
+enum host_uevent_state {
+	NOTIFY_HOST_NONE,
+	NOTIFY_HOST_ADD,
+	NOTIFY_HOST_REMOVE,
+	NOTIFY_HOST_OVERCURRENT,
+	NOTIFY_HOST_LOWBATT,
+	NOTIFY_HOST_BLOCK,
+	NOTIFY_HOST_UNKNOWN,
+	NOTIFY_HOST_SOURCE,
+	NOTIFY_HOST_SINK,
+};
+
+enum host_uevent_type {
+	NOTIFY_UNKNOWN_STATE,
+	NOTIFY_HOST_STATE,
+	NOTIFY_POWER_STATE,
+};
+
+enum otg_hostnotify_mode {
+	NOTIFY_NONE_MODE,
+	NOTIFY_HOST_MODE,
+	NOTIFY_PERIPHERAL_MODE,
+	NOTIFY_TEST_MODE,
+};
+
+enum booster_power {
+	NOTIFY_POWER_OFF,
+	NOTIFY_POWER_ON,
+};
+
+enum set_command {
+	NOTIFY_SET_OFF,
+	NOTIFY_SET_ON,
+};
+
+struct host_notify_dev {
+	const char *name;
+	struct device *dev;
+	int index;
+	int host_state;
+	int host_change;
+	int power_state;
+	int power_change;
+	int mode;
+	int booster;
+	int (*set_mode)(bool on);
+	int (*set_booster)(bool on);
+};
+
+#ifdef CONFIG_USB_HOST_NOTIFY
+extern int host_state_notify(struct host_notify_dev *ndev, int state);
+extern int host_notify_dev_register(struct host_notify_dev *ndev);
+extern void host_notify_dev_unregister(struct host_notify_dev *ndev);
+#else
+static inline int host_state_notify(struct host_notify_dev *ndev, int state)
+	{return 0; }
+static inline int host_notify_dev_register(struct host_notify_dev *ndev)
+	{return 0; }
+static inline void host_notify_dev_unregister(struct host_notify_dev *ndev) {}
+#endif
+
+#endif /* __LINUX_HOST_NOTIFY_H__ */