linux-imx

// SPDX-License-Identifier: GPL-2.0

/**

 * ulpi.c - USB ULPI PHY bus

 *

 * Copyright (C) 2015 Intel Corporation

 *

 * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>

 */

​

#include <linux/ulpi/interface.h>

#include <linux/ulpi/driver.h>

#include <linux/ulpi/regs.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/acpi.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/clk/clk-conf.h>

​

/* -------------------------------------------------------------------------- */

​

int ulpi_read(struct ulpi *ulpi, u8 addr)

{

    return ulpi->ops->read(ulpi->dev.parent, addr);

}

EXPORT_SYMBOL_GPL(ulpi_read);

​

int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val)

{

    return ulpi->ops->write(ulpi->dev.parent, addr, val);

}

EXPORT_SYMBOL_GPL(ulpi_write);

​

/* -------------------------------------------------------------------------- */

​

static int ulpi_match(struct device *dev, struct device_driver *driver)

{

    struct ulpi_driver *drv = to_ulpi_driver(driver);

    struct ulpi *ulpi = to_ulpi_dev(dev);

    const struct ulpi_device_id *id;

​

    /* Some ULPI devices don't have a vendor id so rely on OF match */

    if (ulpi->id.vendor == 0)

        return of_driver_match_device(dev, driver);

​

    for (id = drv->id_table; id->vendor; id++)

        if (id->vendor == ulpi->id.vendor &&

            id->product == ulpi->id.product)

            return 1;

​

    return 0;

}

​

static int ulpi_uevent(struct device *dev, struct kobj_uevent_env *env)

{

    struct ulpi *ulpi = to_ulpi_dev(dev);

    int ret;

​

    ret = of_device_uevent_modalias(dev, env);

    if (ret != -ENODEV)

        return ret;

​

    if (add_uevent_var(env, "MODALIAS=ulpi:v%04xp%04x",