linux/drivers/usb/dwc3/ulpi.c

// SPDX-License-Identifier: GPL-2.0
/*
 * ulpi.c - DesignWare USB3 Controller's ULPI PHY interface
 *
 * Copyright (C) 2015 Intel Corporation
 *
 * Author: Heikki Krogerus <[email protected]>
 */

#include <linux/delay.h>
#include <linux/time64.h>
#include <linux/ulpi/regs.h>

#include "core.h"
#include "io.h"

#define DWC3_ULPI_ADDR(a) …

#define DWC3_ULPI_BASE_DELAY …

static int dwc3_ulpi_busyloop(struct dwc3 *dwc, u8 addr, bool read)
{ … }

static int dwc3_ulpi_read(struct device *dev, u8 addr)
{ … }

static int dwc3_ulpi_write(struct device *dev, u8 addr, u8 val)
{ … }

static const struct ulpi_ops dwc3_ulpi_ops = …;

int dwc3_ulpi_init(struct dwc3 *dwc)
{ … }

void dwc3_ulpi_exit(struct dwc3 *dwc)
{ … }