linux_dsm_epyc7002/drivers/usb/chipidea/otg.h
Peter Chen a107f8c505 usb: chipidea: add vbus interrupt handler
We add vbus interrupt handler at ci_otg_work, it uses OTGSC_BSV(at otgsc)
to know it is connect or disconnet event.
Meanwhile, we introduce two flags id_event and b_sess_valid_event to
indicate it is an id interrupt or a vbus interrupt.

Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-14 12:37:20 -07:00

36 lines
965 B
C

/*
* Copyright (C) 2013 Freescale Semiconductor, Inc.
*
* Author: Peter Chen
*
* 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 __DRIVERS_USB_CHIPIDEA_OTG_H
#define __DRIVERS_USB_CHIPIDEA_OTG_H
static inline void ci_clear_otg_interrupt(struct ci_hdrc *ci, u32 bits)
{
/* Only clear request bits */
hw_write(ci, OP_OTGSC, OTGSC_INT_STATUS_BITS, bits);
}
static inline void ci_enable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
{
hw_write(ci, OP_OTGSC, bits, bits);
}
static inline void ci_disable_otg_interrupt(struct ci_hdrc *ci, u32 bits)
{
hw_write(ci, OP_OTGSC, bits, 0);
}
int ci_hdrc_otg_init(struct ci_hdrc *ci);
void ci_hdrc_otg_destroy(struct ci_hdrc *ci);
enum ci_role ci_otg_role(struct ci_hdrc *ci);
void ci_handle_vbus_change(struct ci_hdrc *ci);
#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */