linux/drivers/phy/motorola/phy-mapphone-mdm6600.c
Tony Lindgren 3b384cc74b phy: mapphone-mdm6600: Fix pinctrl_pm handling for sleep pins
Looks like the driver sleep pins configuration is unusable. Adding the
sleep pins causes the usb phy to not respond. We need to use the default
pins in probe, and only set sleep pins at phy_mdm6600_device_power_off().

As the modem can also be booted to a serial port mode for firmware
flashing, let's make the pin changes limited to probe and remove. For
probe, we get the default pins automatically. We only need to set the
sleep pins in phy_mdm6600_device_power_off() to prevent the modem from
waking up because the gpio line glitches.

If it turns out that we need a separate state for phy_mdm6600_power_on()
and phy_mdm6600_power_off(), we can use the pinctrl idle state.

Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Fixes: 2ad2af0816 ("phy: mapphone-mdm6600: Improve phy related runtime PM calls")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230913060433.48373-3-tony@atomide.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-09-14 17:05:27 +05:30

672 lines
18 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Motorola Mapphone MDM6600 modem GPIO controlled USB PHY driver
* Copyright (C) 2018 Tony Lindgren <tony@atomide.com>
*/
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio/consumer.h>
#include <linux/of_platform.h>
#include <linux/phy/phy.h>
#include <linux/pinctrl/consumer.h>
#define PHY_MDM6600_PHY_DELAY_MS 4000 /* PHY enable 2.2s to 3.5s */
#define PHY_MDM6600_ENABLED_DELAY_MS 8000 /* 8s more total for MDM6600 */
#define PHY_MDM6600_WAKE_KICK_MS 600 /* time on after GPIO toggle */
#define MDM6600_MODEM_IDLE_DELAY_MS 1000 /* modem after USB suspend */
#define MDM6600_MODEM_WAKE_DELAY_MS 200 /* modem response after idle */
enum phy_mdm6600_ctrl_lines {
PHY_MDM6600_ENABLE, /* USB PHY enable */
PHY_MDM6600_POWER, /* Device power */
PHY_MDM6600_RESET, /* Device reset */
PHY_MDM6600_NR_CTRL_LINES,
};
enum phy_mdm6600_bootmode_lines {
PHY_MDM6600_MODE0, /* out USB mode0 and OOB wake */
PHY_MDM6600_MODE1, /* out USB mode1, in OOB wake */
PHY_MDM6600_NR_MODE_LINES,
};
enum phy_mdm6600_cmd_lines {
PHY_MDM6600_CMD0,
PHY_MDM6600_CMD1,
PHY_MDM6600_CMD2,
PHY_MDM6600_NR_CMD_LINES,
};
enum phy_mdm6600_status_lines {
PHY_MDM6600_STATUS0,
PHY_MDM6600_STATUS1,
PHY_MDM6600_STATUS2,
PHY_MDM6600_NR_STATUS_LINES,
};
/*
* MDM6600 command codes. These are based on Motorola Mapphone Linux
* kernel tree.
*/
enum phy_mdm6600_cmd {
PHY_MDM6600_CMD_BP_PANIC_ACK,
PHY_MDM6600_CMD_DATA_ONLY_BYPASS, /* Reroute USB to CPCAP PHY */
PHY_MDM6600_CMD_FULL_BYPASS, /* Reroute USB to CPCAP PHY */
PHY_MDM6600_CMD_NO_BYPASS, /* Request normal USB mode */
PHY_MDM6600_CMD_BP_SHUTDOWN_REQ, /* Request device power off */
PHY_MDM6600_CMD_BP_UNKNOWN_5,
PHY_MDM6600_CMD_BP_UNKNOWN_6,
PHY_MDM6600_CMD_UNDEFINED,
};
/*
* MDM6600 status codes. These are based on Motorola Mapphone Linux
* kernel tree.
*/
enum phy_mdm6600_status {
PHY_MDM6600_STATUS_PANIC, /* Seems to be really off */
PHY_MDM6600_STATUS_PANIC_BUSY_WAIT,
PHY_MDM6600_STATUS_QC_DLOAD,
PHY_MDM6600_STATUS_RAM_DOWNLOADER, /* MDM6600 USB flashing mode */
PHY_MDM6600_STATUS_PHONE_CODE_AWAKE, /* MDM6600 normal USB mode */
PHY_MDM6600_STATUS_PHONE_CODE_ASLEEP,
PHY_MDM6600_STATUS_SHUTDOWN_ACK,
PHY_MDM6600_STATUS_UNDEFINED,
};
static const char * const
phy_mdm6600_status_name[] = {
"off", "busy", "qc_dl", "ram_dl", "awake",
"asleep", "shutdown", "undefined",
};
struct phy_mdm6600 {
struct device *dev;
struct phy *generic_phy;
struct phy_provider *phy_provider;
struct gpio_desc *ctrl_gpios[PHY_MDM6600_NR_CTRL_LINES];
struct gpio_descs *mode_gpios;
struct gpio_descs *status_gpios;
struct gpio_descs *cmd_gpios;
struct delayed_work bootup_work;
struct delayed_work status_work;
struct delayed_work modem_wake_work;
struct completion ack;
bool enabled; /* mdm6600 phy enabled */
bool running; /* mdm6600 boot done */
bool awake; /* mdm6600 respnds on n_gsm */
int status;
};
static int phy_mdm6600_init(struct phy *x)
{
struct phy_mdm6600 *ddata = phy_get_drvdata(x);
struct gpio_desc *enable_gpio = ddata->ctrl_gpios[PHY_MDM6600_ENABLE];
if (!ddata->enabled)
return -EPROBE_DEFER;
gpiod_set_value_cansleep(enable_gpio, 0);
return 0;
}
static int phy_mdm6600_power_on(struct phy *x)
{
struct phy_mdm6600 *ddata = phy_get_drvdata(x);
struct gpio_desc *enable_gpio = ddata->ctrl_gpios[PHY_MDM6600_ENABLE];
if (!ddata->enabled)
return -ENODEV;
gpiod_set_value_cansleep(enable_gpio, 1);
/* Allow aggressive PM for USB, it's only needed for n_gsm port */
if (pm_runtime_enabled(&x->dev))
phy_pm_runtime_put(x);
return 0;
}
static int phy_mdm6600_power_off(struct phy *x)
{
struct phy_mdm6600 *ddata = phy_get_drvdata(x);
struct gpio_desc *enable_gpio = ddata->ctrl_gpios[PHY_MDM6600_ENABLE];
int error;
if (!ddata->enabled)
return -ENODEV;
/* Paired with phy_pm_runtime_put() in phy_mdm6600_power_on() */
if (pm_runtime_enabled(&x->dev)) {
error = phy_pm_runtime_get(x);
if (error < 0 && error != -EINPROGRESS)
dev_warn(ddata->dev, "%s: phy_pm_runtime_get: %i\n",
__func__, error);
}
gpiod_set_value_cansleep(enable_gpio, 0);
return 0;
}
static const struct phy_ops gpio_usb_ops = {
.init = phy_mdm6600_init,
.power_on = phy_mdm6600_power_on,
.power_off = phy_mdm6600_power_off,
.owner = THIS_MODULE,
};
/**
* phy_mdm6600_cmd() - send a command request to mdm6600
* @ddata: device driver data
* @val: value of cmd to be set
*
* Configures the three command request GPIOs to the specified value.
*/
static void phy_mdm6600_cmd(struct phy_mdm6600 *ddata, int val)
{
DECLARE_BITMAP(values, PHY_MDM6600_NR_CMD_LINES);
values[0] = val;
gpiod_set_array_value_cansleep(PHY_MDM6600_NR_CMD_LINES,
ddata->cmd_gpios->desc,
ddata->cmd_gpios->info, values);
}
/**
* phy_mdm6600_status() - read mdm6600 status lines
* @work: work structure
*/
static void phy_mdm6600_status(struct work_struct *work)
{
struct phy_mdm6600 *ddata;
struct device *dev;
DECLARE_BITMAP(values, PHY_MDM6600_NR_STATUS_LINES);
int error;
ddata = container_of(work, struct phy_mdm6600, status_work.work);
dev = ddata->dev;
error = gpiod_get_array_value_cansleep(PHY_MDM6600_NR_STATUS_LINES,
ddata->status_gpios->desc,
ddata->status_gpios->info,
values);
if (error)
return;
ddata->status = values[0] & ((1 << PHY_MDM6600_NR_STATUS_LINES) - 1);
dev_info(dev, "modem status: %i %s\n",
ddata->status,
phy_mdm6600_status_name[ddata->status]);
complete(&ddata->ack);
}
static irqreturn_t phy_mdm6600_irq_thread(int irq, void *data)
{
struct phy_mdm6600 *ddata = data;
schedule_delayed_work(&ddata->status_work, msecs_to_jiffies(10));
return IRQ_HANDLED;
}
/**
* phy_mdm6600_wakeirq_thread - handle mode1 line OOB wake after booting
* @irq: interrupt
* @data: interrupt handler data
*
* GPIO mode1 is used initially as output to configure the USB boot
* mode for mdm6600. After booting it is used as input for OOB wake
* signal from mdm6600 to the SoC. Just use it for debug info only
* for now.
*/
static irqreturn_t phy_mdm6600_wakeirq_thread(int irq, void *data)
{
struct phy_mdm6600 *ddata = data;
struct gpio_desc *mode_gpio1;
int error, wakeup;
mode_gpio1 = ddata->mode_gpios->desc[PHY_MDM6600_MODE1];
wakeup = gpiod_get_value(mode_gpio1);
if (!wakeup)
return IRQ_NONE;
dev_dbg(ddata->dev, "OOB wake on mode_gpio1: %i\n", wakeup);
error = pm_runtime_get_sync(ddata->dev);
if (error < 0) {
pm_runtime_put_noidle(ddata->dev);
return IRQ_NONE;
}
/* Just wake-up and kick the autosuspend timer */
pm_runtime_mark_last_busy(ddata->dev);
pm_runtime_put_autosuspend(ddata->dev);
return IRQ_HANDLED;
}
/**
* phy_mdm6600_init_irq() - initialize mdm6600 status IRQ lines
* @ddata: device driver data
*/
static void phy_mdm6600_init_irq(struct phy_mdm6600 *ddata)
{
struct device *dev = ddata->dev;
int i, error, irq;
for (i = PHY_MDM6600_STATUS0;
i <= PHY_MDM6600_STATUS2; i++) {
struct gpio_desc *gpio = ddata->status_gpios->desc[i];
irq = gpiod_to_irq(gpio);
if (irq <= 0)
continue;
error = devm_request_threaded_irq(dev, irq, NULL,
phy_mdm6600_irq_thread,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"mdm6600",
ddata);
if (error)
dev_warn(dev, "no modem status irq%i: %i\n",
irq, error);
}
}
struct phy_mdm6600_map {
const char *name;
int direction;
};
static const struct phy_mdm6600_map
phy_mdm6600_ctrl_gpio_map[PHY_MDM6600_NR_CTRL_LINES] = {
{ "enable", GPIOD_OUT_LOW, }, /* low = phy disabled */
{ "power", GPIOD_OUT_LOW, }, /* low = off */
{ "reset", GPIOD_OUT_HIGH, }, /* high = reset */
};
/**
* phy_mdm6600_init_lines() - initialize mdm6600 GPIO lines
* @ddata: device driver data
*/
static int phy_mdm6600_init_lines(struct phy_mdm6600 *ddata)
{
struct device *dev = ddata->dev;
int i;
/* MDM6600 control lines */
for (i = 0; i < ARRAY_SIZE(phy_mdm6600_ctrl_gpio_map); i++) {
const struct phy_mdm6600_map *map =
&phy_mdm6600_ctrl_gpio_map[i];
struct gpio_desc **gpio = &ddata->ctrl_gpios[i];
*gpio = devm_gpiod_get(dev, map->name, map->direction);
if (IS_ERR(*gpio)) {
dev_info(dev, "gpio %s error %li\n",
map->name, PTR_ERR(*gpio));
return PTR_ERR(*gpio);
}
}
/* MDM6600 USB start-up mode output lines */
ddata->mode_gpios = devm_gpiod_get_array(dev, "motorola,mode",
GPIOD_OUT_LOW);
if (IS_ERR(ddata->mode_gpios))
return PTR_ERR(ddata->mode_gpios);
if (ddata->mode_gpios->ndescs != PHY_MDM6600_NR_MODE_LINES)
return -EINVAL;
/* MDM6600 status input lines */
ddata->status_gpios = devm_gpiod_get_array(dev, "motorola,status",
GPIOD_IN);
if (IS_ERR(ddata->status_gpios))
return PTR_ERR(ddata->status_gpios);
if (ddata->status_gpios->ndescs != PHY_MDM6600_NR_STATUS_LINES)
return -EINVAL;
/* MDM6600 cmd output lines */
ddata->cmd_gpios = devm_gpiod_get_array(dev, "motorola,cmd",
GPIOD_OUT_LOW);
if (IS_ERR(ddata->cmd_gpios))
return PTR_ERR(ddata->cmd_gpios);
if (ddata->cmd_gpios->ndescs != PHY_MDM6600_NR_CMD_LINES)
return -EINVAL;
return 0;
}
/**
* phy_mdm6600_device_power_on() - power on mdm6600 device
* @ddata: device driver data
*
* To get the integrated USB phy in MDM6600 takes some hoops. We must ensure
* the shared USB bootmode GPIOs are configured, then request modem start-up,
* reset and power-up.. And then we need to recycle the shared USB bootmode
* GPIOs as they are also used for Out of Band (OOB) wake for the USB and
* TS 27.010 serial mux.
*/
static int phy_mdm6600_device_power_on(struct phy_mdm6600 *ddata)
{
struct gpio_desc *mode_gpio0, *mode_gpio1, *reset_gpio, *power_gpio;
int error = 0, wakeirq;
mode_gpio0 = ddata->mode_gpios->desc[PHY_MDM6600_MODE0];
mode_gpio1 = ddata->mode_gpios->desc[PHY_MDM6600_MODE1];
reset_gpio = ddata->ctrl_gpios[PHY_MDM6600_RESET];
power_gpio = ddata->ctrl_gpios[PHY_MDM6600_POWER];
/*
* Shared GPIOs must be low for normal USB mode. After booting
* they are used for OOB wake signaling. These can be also used
* to configure USB flashing mode later on based on a module
* parameter.
*/
gpiod_set_value_cansleep(mode_gpio0, 0);
gpiod_set_value_cansleep(mode_gpio1, 0);
/* Request start-up mode */
phy_mdm6600_cmd(ddata, PHY_MDM6600_CMD_NO_BYPASS);
/* Request a reset first */
gpiod_set_value_cansleep(reset_gpio, 0);
msleep(100);
/* Toggle power GPIO to request mdm6600 to start */
gpiod_set_value_cansleep(power_gpio, 1);
msleep(100);
gpiod_set_value_cansleep(power_gpio, 0);
/*
* Looks like the USB PHY needs between 2.2 to 4 seconds.
* If we try to use it before that, we will get L3 errors
* from omap-usb-host trying to access the PHY. See also
* phy_mdm6600_init() for -EPROBE_DEFER.
*/
msleep(PHY_MDM6600_PHY_DELAY_MS);
ddata->enabled = true;
/* Booting up the rest of MDM6600 will take total about 8 seconds */
dev_info(ddata->dev, "Waiting for power up request to complete..\n");
if (wait_for_completion_timeout(&ddata->ack,
msecs_to_jiffies(PHY_MDM6600_ENABLED_DELAY_MS))) {
if (ddata->status > PHY_MDM6600_STATUS_PANIC &&
ddata->status < PHY_MDM6600_STATUS_SHUTDOWN_ACK)
dev_info(ddata->dev, "Powered up OK\n");
} else {
ddata->enabled = false;
error = -ETIMEDOUT;
dev_err(ddata->dev, "Timed out powering up\n");
}
/* Reconfigure mode1 GPIO as input for OOB wake */
gpiod_direction_input(mode_gpio1);
wakeirq = gpiod_to_irq(mode_gpio1);
if (wakeirq <= 0)
return wakeirq;
error = devm_request_threaded_irq(ddata->dev, wakeirq, NULL,
phy_mdm6600_wakeirq_thread,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING |
IRQF_ONESHOT,
"mdm6600-wake",
ddata);
if (error)
dev_warn(ddata->dev, "no modem wakeirq irq%i: %i\n",
wakeirq, error);
ddata->running = true;
return error;
}
/**
* phy_mdm6600_device_power_off() - power off mdm6600 device
* @ddata: device driver data
*/
static void phy_mdm6600_device_power_off(struct phy_mdm6600 *ddata)
{
struct gpio_desc *reset_gpio =
ddata->ctrl_gpios[PHY_MDM6600_RESET];
int error;
ddata->enabled = false;
phy_mdm6600_cmd(ddata, PHY_MDM6600_CMD_BP_SHUTDOWN_REQ);
msleep(100);
gpiod_set_value_cansleep(reset_gpio, 1);
dev_info(ddata->dev, "Waiting for power down request to complete.. ");
if (wait_for_completion_timeout(&ddata->ack,
msecs_to_jiffies(5000))) {
if (ddata->status == PHY_MDM6600_STATUS_PANIC)
dev_info(ddata->dev, "Powered down OK\n");
} else {
dev_err(ddata->dev, "Timed out powering down\n");
}
/*
* Keep reset gpio high with padconf internal pull-up resistor to
* prevent modem from waking up during deeper SoC idle states. The
* gpio bank lines can have glitches if not in the always-on wkup
* domain.
*/
error = pinctrl_pm_select_sleep_state(ddata->dev);
if (error)
dev_warn(ddata->dev, "%s: error with sleep_state: %i\n",
__func__, error);
}
static void phy_mdm6600_deferred_power_on(struct work_struct *work)
{
struct phy_mdm6600 *ddata;
int error;
ddata = container_of(work, struct phy_mdm6600, bootup_work.work);
error = phy_mdm6600_device_power_on(ddata);
if (error)
dev_err(ddata->dev, "Device not functional\n");
}
/*
* USB suspend puts mdm6600 into low power mode. For any n_gsm using apps,
* we need to keep the modem awake by kicking it's mode0 GPIO. This will
* keep the modem awake for about 1.2 seconds. When no n_gsm apps are using
* the modem, runtime PM auto mode can be enabled so modem can enter low
* power mode.
*/
static void phy_mdm6600_wake_modem(struct phy_mdm6600 *ddata)
{
struct gpio_desc *mode_gpio0;
mode_gpio0 = ddata->mode_gpios->desc[PHY_MDM6600_MODE0];
gpiod_set_value_cansleep(mode_gpio0, 1);
usleep_range(5, 15);
gpiod_set_value_cansleep(mode_gpio0, 0);
if (ddata->awake)
usleep_range(5, 15);
else
msleep(MDM6600_MODEM_WAKE_DELAY_MS);
}
static void phy_mdm6600_modem_wake(struct work_struct *work)
{
struct phy_mdm6600 *ddata;
ddata = container_of(work, struct phy_mdm6600, modem_wake_work.work);
phy_mdm6600_wake_modem(ddata);
/*
* The modem does not always stay awake 1.2 seconds after toggling
* the wake GPIO, and sometimes it idles after about some 600 ms
* making writes time out.
*/
schedule_delayed_work(&ddata->modem_wake_work,
msecs_to_jiffies(PHY_MDM6600_WAKE_KICK_MS));
}
static int __maybe_unused phy_mdm6600_runtime_suspend(struct device *dev)
{
struct phy_mdm6600 *ddata = dev_get_drvdata(dev);
cancel_delayed_work_sync(&ddata->modem_wake_work);
ddata->awake = false;
return 0;
}
static int __maybe_unused phy_mdm6600_runtime_resume(struct device *dev)
{
struct phy_mdm6600 *ddata = dev_get_drvdata(dev);
phy_mdm6600_modem_wake(&ddata->modem_wake_work.work);
ddata->awake = true;
return 0;
}
static const struct dev_pm_ops phy_mdm6600_pm_ops = {
SET_RUNTIME_PM_OPS(phy_mdm6600_runtime_suspend,
phy_mdm6600_runtime_resume, NULL)
};
static const struct of_device_id phy_mdm6600_id_table[] = {
{ .compatible = "motorola,mapphone-mdm6600", },
{},
};
MODULE_DEVICE_TABLE(of, phy_mdm6600_id_table);
static int phy_mdm6600_probe(struct platform_device *pdev)
{
struct phy_mdm6600 *ddata;
int error;
ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
INIT_DELAYED_WORK(&ddata->bootup_work,
phy_mdm6600_deferred_power_on);
INIT_DELAYED_WORK(&ddata->status_work, phy_mdm6600_status);
INIT_DELAYED_WORK(&ddata->modem_wake_work, phy_mdm6600_modem_wake);
init_completion(&ddata->ack);
ddata->dev = &pdev->dev;
platform_set_drvdata(pdev, ddata);
error = phy_mdm6600_init_lines(ddata);
if (error)
return error;
phy_mdm6600_init_irq(ddata);
schedule_delayed_work(&ddata->bootup_work, 0);
/*
* See phy_mdm6600_device_power_on(). We should be able
* to remove this eventually when ohci-platform can deal
* with -EPROBE_DEFER.
*/
msleep(PHY_MDM6600_PHY_DELAY_MS + 500);
/*
* Enable PM runtime only after PHY has been powered up properly.
* It is currently only needed after USB suspends mdm6600 and n_gsm
* needs to access the device. We don't want to do this earlier as
* gpio mode0 pin doubles as mdm6600 wake-up gpio.
*/
pm_runtime_use_autosuspend(ddata->dev);
pm_runtime_set_autosuspend_delay(ddata->dev,
MDM6600_MODEM_IDLE_DELAY_MS);
pm_runtime_enable(ddata->dev);
error = pm_runtime_get_sync(ddata->dev);
if (error < 0) {
dev_warn(ddata->dev, "failed to wake modem: %i\n", error);
pm_runtime_put_noidle(ddata->dev);
goto cleanup;
}
ddata->generic_phy = devm_phy_create(ddata->dev, NULL, &gpio_usb_ops);
if (IS_ERR(ddata->generic_phy)) {
error = PTR_ERR(ddata->generic_phy);
goto idle;
}
phy_set_drvdata(ddata->generic_phy, ddata);
ddata->phy_provider =
devm_of_phy_provider_register(ddata->dev,
of_phy_simple_xlate);
if (IS_ERR(ddata->phy_provider))
error = PTR_ERR(ddata->phy_provider);
idle:
pm_runtime_mark_last_busy(ddata->dev);
pm_runtime_put_autosuspend(ddata->dev);
cleanup:
if (error < 0) {
phy_mdm6600_device_power_off(ddata);
pm_runtime_disable(ddata->dev);
pm_runtime_dont_use_autosuspend(ddata->dev);
}
return error;
}
static void phy_mdm6600_remove(struct platform_device *pdev)
{
struct phy_mdm6600 *ddata = platform_get_drvdata(pdev);
struct gpio_desc *reset_gpio = ddata->ctrl_gpios[PHY_MDM6600_RESET];
pm_runtime_get_noresume(ddata->dev);
pm_runtime_dont_use_autosuspend(ddata->dev);
pm_runtime_put_sync(ddata->dev);
pm_runtime_disable(ddata->dev);
if (!ddata->running)
wait_for_completion_timeout(&ddata->ack,
msecs_to_jiffies(PHY_MDM6600_ENABLED_DELAY_MS));
gpiod_set_value_cansleep(reset_gpio, 1);
phy_mdm6600_device_power_off(ddata);
cancel_delayed_work_sync(&ddata->modem_wake_work);
cancel_delayed_work_sync(&ddata->bootup_work);
cancel_delayed_work_sync(&ddata->status_work);
}
static struct platform_driver phy_mdm6600_driver = {
.probe = phy_mdm6600_probe,
.remove_new = phy_mdm6600_remove,
.driver = {
.name = "phy-mapphone-mdm6600",
.pm = &phy_mdm6600_pm_ops,
.of_match_table = of_match_ptr(phy_mdm6600_id_table),
},
};
module_platform_driver(phy_mdm6600_driver);
MODULE_ALIAS("platform:gpio_usb");
MODULE_AUTHOR("Tony Lindgren <tony@atomide.com>");
MODULE_DESCRIPTION("mdm6600 gpio usb phy driver");
MODULE_LICENSE("GPL v2");