v4.19.13 snapshot.
diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h
new file mode 100644
index 0000000..a4a61d6
--- /dev/null
+++ b/drivers/usb/renesas_usbhs/mod.h
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-1.0+
+/*
+ * Renesas USB driver
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ */
+#ifndef RENESAS_USB_MOD_H
+#define RENESAS_USB_MOD_H
+
+#include <linux/spinlock.h>
+#include <linux/usb/renesas_usbhs.h>
+#include "common.h"
+
+/*
+ * struct
+ */
+struct usbhs_irq_state {
+ u16 intsts0;
+ u16 intsts1;
+ u16 brdysts;
+ u16 nrdysts;
+ u16 bempsts;
+};
+
+struct usbhs_mod {
+ char *name;
+
+ /*
+ * entry point from common.c
+ */
+ int (*start)(struct usbhs_priv *priv);
+ int (*stop)(struct usbhs_priv *priv);
+
+ /*
+ * INTSTS0
+ */
+
+ /* DVST (DVSQ) */
+ int (*irq_dev_state)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* CTRT (CTSQ) */
+ int (*irq_ctrl_stage)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* BEMP / BEMPSTS */
+ int (*irq_empty)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+ u16 irq_bempsts;
+
+ /* BRDY / BRDYSTS */
+ int (*irq_ready)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+ u16 irq_brdysts;
+
+ /*
+ * INTSTS1
+ */
+
+ /* ATTCHE */
+ int (*irq_attch)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* DTCHE */
+ int (*irq_dtch)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* SIGN */
+ int (*irq_sign)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* SACK */
+ int (*irq_sack)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ struct usbhs_priv *priv;
+};
+
+struct usbhs_mod_info {
+ struct usbhs_mod *mod[USBHS_MAX];
+ struct usbhs_mod *curt; /* current mod */
+
+ /*
+ * INTSTS0 :: VBINT
+ *
+ * This function will be used as autonomy mode
+ * when platform cannot call notify_hotplug.
+ *
+ * This callback cannot be member of "struct usbhs_mod"
+ * because it will be used even though
+ * host/gadget has not been selected.
+ */
+ int (*irq_vbus)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+};
+
+/*
+ * for host/gadget module
+ */
+struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
+struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
+void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
+int usbhs_mod_is_host(struct usbhs_priv *priv);
+int usbhs_mod_change(struct usbhs_priv *priv, int id);
+int usbhs_mod_probe(struct usbhs_priv *priv);
+void usbhs_mod_remove(struct usbhs_priv *priv);
+
+void usbhs_mod_autonomy_mode(struct usbhs_priv *priv);
+
+/*
+ * status functions
+ */
+int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
+int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
+
+/*
+ * callback functions
+ */
+void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
+
+
+#define usbhs_mod_call(priv, func, param...) \
+ ({ \
+ struct usbhs_mod *mod; \
+ mod = usbhs_mod_get_current(priv); \
+ !mod ? -ENODEV : \
+ !mod->func ? 0 : \
+ mod->func(param); \
+ })
+
+/*
+ * host / gadget control
+ */
+#if defined(CONFIG_USB_RENESAS_USBHS_HCD) || \
+ defined(CONFIG_USB_RENESAS_USBHS_HCD_MODULE)
+extern int usbhs_mod_host_probe(struct usbhs_priv *priv);
+extern int usbhs_mod_host_remove(struct usbhs_priv *priv);
+#else
+static inline int usbhs_mod_host_probe(struct usbhs_priv *priv)
+{
+ return 0;
+}
+static inline void usbhs_mod_host_remove(struct usbhs_priv *priv)
+{
+}
+#endif
+
+#if defined(CONFIG_USB_RENESAS_USBHS_UDC) || \
+ defined(CONFIG_USB_RENESAS_USBHS_UDC_MODULE)
+extern int usbhs_mod_gadget_probe(struct usbhs_priv *priv);
+extern void usbhs_mod_gadget_remove(struct usbhs_priv *priv);
+#else
+static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
+{
+ return 0;
+}
+static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
+{
+}
+#endif
+
+#endif /* RENESAS_USB_MOD_H */