forked from Minki/linux
558 lines
13 KiB
C
558 lines
13 KiB
C
|
/*
|
||
|
* fsa9480.c - FSA9480 micro USB switch device driver
|
||
|
*
|
||
|
* Copyright (C) 2010 Samsung Electronics
|
||
|
* Minkyu Kang <mk7.kang@samsung.com>
|
||
|
* Wonguk Jeong <wonguk.jeong@samsung.com>
|
||
|
*
|
||
|
* 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.
|
||
|
*/
|
||
|
|
||
|
#include <linux/kernel.h>
|
||
|
#include <linux/module.h>
|
||
|
#include <linux/err.h>
|
||
|
#include <linux/i2c.h>
|
||
|
#include <linux/platform_data/fsa9480.h>
|
||
|
#include <linux/irq.h>
|
||
|
#include <linux/interrupt.h>
|
||
|
#include <linux/workqueue.h>
|
||
|
#include <linux/platform_device.h>
|
||
|
#include <linux/slab.h>
|
||
|
#include <linux/pm_runtime.h>
|
||
|
|
||
|
/* FSA9480 I2C registers */
|
||
|
#define FSA9480_REG_DEVID 0x01
|
||
|
#define FSA9480_REG_CTRL 0x02
|
||
|
#define FSA9480_REG_INT1 0x03
|
||
|
#define FSA9480_REG_INT2 0x04
|
||
|
#define FSA9480_REG_INT1_MASK 0x05
|
||
|
#define FSA9480_REG_INT2_MASK 0x06
|
||
|
#define FSA9480_REG_ADC 0x07
|
||
|
#define FSA9480_REG_TIMING1 0x08
|
||
|
#define FSA9480_REG_TIMING2 0x09
|
||
|
#define FSA9480_REG_DEV_T1 0x0a
|
||
|
#define FSA9480_REG_DEV_T2 0x0b
|
||
|
#define FSA9480_REG_BTN1 0x0c
|
||
|
#define FSA9480_REG_BTN2 0x0d
|
||
|
#define FSA9480_REG_CK 0x0e
|
||
|
#define FSA9480_REG_CK_INT1 0x0f
|
||
|
#define FSA9480_REG_CK_INT2 0x10
|
||
|
#define FSA9480_REG_CK_INTMASK1 0x11
|
||
|
#define FSA9480_REG_CK_INTMASK2 0x12
|
||
|
#define FSA9480_REG_MANSW1 0x13
|
||
|
#define FSA9480_REG_MANSW2 0x14
|
||
|
|
||
|
/* Control */
|
||
|
#define CON_SWITCH_OPEN (1 << 4)
|
||
|
#define CON_RAW_DATA (1 << 3)
|
||
|
#define CON_MANUAL_SW (1 << 2)
|
||
|
#define CON_WAIT (1 << 1)
|
||
|
#define CON_INT_MASK (1 << 0)
|
||
|
#define CON_MASK (CON_SWITCH_OPEN | CON_RAW_DATA | \
|
||
|
CON_MANUAL_SW | CON_WAIT)
|
||
|
|
||
|
/* Device Type 1 */
|
||
|
#define DEV_USB_OTG (1 << 7)
|
||
|
#define DEV_DEDICATED_CHG (1 << 6)
|
||
|
#define DEV_USB_CHG (1 << 5)
|
||
|
#define DEV_CAR_KIT (1 << 4)
|
||
|
#define DEV_UART (1 << 3)
|
||
|
#define DEV_USB (1 << 2)
|
||
|
#define DEV_AUDIO_2 (1 << 1)
|
||
|
#define DEV_AUDIO_1 (1 << 0)
|
||
|
|
||
|
#define DEV_T1_USB_MASK (DEV_USB_OTG | DEV_USB)
|
||
|
#define DEV_T1_UART_MASK (DEV_UART)
|
||
|
#define DEV_T1_CHARGER_MASK (DEV_DEDICATED_CHG | DEV_USB_CHG)
|
||
|
|
||
|
/* Device Type 2 */
|
||
|
#define DEV_AV (1 << 6)
|
||
|
#define DEV_TTY (1 << 5)
|
||
|
#define DEV_PPD (1 << 4)
|
||
|
#define DEV_JIG_UART_OFF (1 << 3)
|
||
|
#define DEV_JIG_UART_ON (1 << 2)
|
||
|
#define DEV_JIG_USB_OFF (1 << 1)
|
||
|
#define DEV_JIG_USB_ON (1 << 0)
|
||
|
|
||
|
#define DEV_T2_USB_MASK (DEV_JIG_USB_OFF | DEV_JIG_USB_ON)
|
||
|
#define DEV_T2_UART_MASK (DEV_JIG_UART_OFF | DEV_JIG_UART_ON)
|
||
|
#define DEV_T2_JIG_MASK (DEV_JIG_USB_OFF | DEV_JIG_USB_ON | \
|
||
|
DEV_JIG_UART_OFF | DEV_JIG_UART_ON)
|
||
|
|
||
|
/*
|
||
|
* Manual Switch
|
||
|
* D- [7:5] / D+ [4:2]
|
||
|
* 000: Open all / 001: USB / 010: AUDIO / 011: UART / 100: V_AUDIO
|
||
|
*/
|
||
|
#define SW_VAUDIO ((4 << 5) | (4 << 2))
|
||
|
#define SW_UART ((3 << 5) | (3 << 2))
|
||
|
#define SW_AUDIO ((2 << 5) | (2 << 2))
|
||
|
#define SW_DHOST ((1 << 5) | (1 << 2))
|
||
|
#define SW_AUTO ((0 << 5) | (0 << 2))
|
||
|
|
||
|
/* Interrupt 1 */
|
||
|
#define INT_DETACH (1 << 1)
|
||
|
#define INT_ATTACH (1 << 0)
|
||
|
|
||
|
struct fsa9480_usbsw {
|
||
|
struct i2c_client *client;
|
||
|
struct fsa9480_platform_data *pdata;
|
||
|
int dev1;
|
||
|
int dev2;
|
||
|
int mansw;
|
||
|
};
|
||
|
|
||
|
static struct fsa9480_usbsw *chip;
|
||
|
|
||
|
static int fsa9480_write_reg(struct i2c_client *client,
|
||
|
int reg, int value)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
ret = i2c_smbus_write_byte_data(client, reg, value);
|
||
|
|
||
|
if (ret < 0)
|
||
|
dev_err(&client->dev, "%s: err %d\n", __func__, ret);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int fsa9480_read_reg(struct i2c_client *client, int reg)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
ret = i2c_smbus_read_byte_data(client, reg);
|
||
|
|
||
|
if (ret < 0)
|
||
|
dev_err(&client->dev, "%s: err %d\n", __func__, ret);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int fsa9480_read_irq(struct i2c_client *client, int *value)
|
||
|
{
|
||
|
int ret;
|
||
|
|
||
|
ret = i2c_smbus_read_i2c_block_data(client,
|
||
|
FSA9480_REG_INT1, 2, (u8 *)value);
|
||
|
*value &= 0xffff;
|
||
|
|
||
|
if (ret < 0)
|
||
|
dev_err(&client->dev, "%s: err %d\n", __func__, ret);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void fsa9480_set_switch(const char *buf)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = chip;
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
unsigned int value;
|
||
|
unsigned int path = 0;
|
||
|
|
||
|
value = fsa9480_read_reg(client, FSA9480_REG_CTRL);
|
||
|
|
||
|
if (!strncmp(buf, "VAUDIO", 6)) {
|
||
|
path = SW_VAUDIO;
|
||
|
value &= ~CON_MANUAL_SW;
|
||
|
} else if (!strncmp(buf, "UART", 4)) {
|
||
|
path = SW_UART;
|
||
|
value &= ~CON_MANUAL_SW;
|
||
|
} else if (!strncmp(buf, "AUDIO", 5)) {
|
||
|
path = SW_AUDIO;
|
||
|
value &= ~CON_MANUAL_SW;
|
||
|
} else if (!strncmp(buf, "DHOST", 5)) {
|
||
|
path = SW_DHOST;
|
||
|
value &= ~CON_MANUAL_SW;
|
||
|
} else if (!strncmp(buf, "AUTO", 4)) {
|
||
|
path = SW_AUTO;
|
||
|
value |= CON_MANUAL_SW;
|
||
|
} else {
|
||
|
printk(KERN_ERR "Wrong command\n");
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
usbsw->mansw = path;
|
||
|
fsa9480_write_reg(client, FSA9480_REG_MANSW1, path);
|
||
|
fsa9480_write_reg(client, FSA9480_REG_CTRL, value);
|
||
|
}
|
||
|
|
||
|
static ssize_t fsa9480_get_switch(char *buf)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = chip;
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
unsigned int value;
|
||
|
|
||
|
value = fsa9480_read_reg(client, FSA9480_REG_MANSW1);
|
||
|
|
||
|
if (value == SW_VAUDIO)
|
||
|
return sprintf(buf, "VAUDIO\n");
|
||
|
else if (value == SW_UART)
|
||
|
return sprintf(buf, "UART\n");
|
||
|
else if (value == SW_AUDIO)
|
||
|
return sprintf(buf, "AUDIO\n");
|
||
|
else if (value == SW_DHOST)
|
||
|
return sprintf(buf, "DHOST\n");
|
||
|
else if (value == SW_AUTO)
|
||
|
return sprintf(buf, "AUTO\n");
|
||
|
else
|
||
|
return sprintf(buf, "%x", value);
|
||
|
}
|
||
|
|
||
|
static ssize_t fsa9480_show_device(struct device *dev,
|
||
|
struct device_attribute *attr,
|
||
|
char *buf)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = dev_get_drvdata(dev);
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
int dev1, dev2;
|
||
|
|
||
|
dev1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1);
|
||
|
dev2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2);
|
||
|
|
||
|
if (!dev1 && !dev2)
|
||
|
return sprintf(buf, "NONE\n");
|
||
|
|
||
|
/* USB */
|
||
|
if (dev1 & DEV_T1_USB_MASK || dev2 & DEV_T2_USB_MASK)
|
||
|
return sprintf(buf, "USB\n");
|
||
|
|
||
|
/* UART */
|
||
|
if (dev1 & DEV_T1_UART_MASK || dev2 & DEV_T2_UART_MASK)
|
||
|
return sprintf(buf, "UART\n");
|
||
|
|
||
|
/* CHARGER */
|
||
|
if (dev1 & DEV_T1_CHARGER_MASK)
|
||
|
return sprintf(buf, "CHARGER\n");
|
||
|
|
||
|
/* JIG */
|
||
|
if (dev2 & DEV_T2_JIG_MASK)
|
||
|
return sprintf(buf, "JIG\n");
|
||
|
|
||
|
return sprintf(buf, "UNKNOWN\n");
|
||
|
}
|
||
|
|
||
|
static ssize_t fsa9480_show_manualsw(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
return fsa9480_get_switch(buf);
|
||
|
|
||
|
}
|
||
|
|
||
|
static ssize_t fsa9480_set_manualsw(struct device *dev,
|
||
|
struct device_attribute *attr,
|
||
|
const char *buf, size_t count)
|
||
|
{
|
||
|
fsa9480_set_switch(buf);
|
||
|
|
||
|
return count;
|
||
|
}
|
||
|
|
||
|
static DEVICE_ATTR(device, S_IRUGO, fsa9480_show_device, NULL);
|
||
|
static DEVICE_ATTR(switch, S_IRUGO | S_IWUSR,
|
||
|
fsa9480_show_manualsw, fsa9480_set_manualsw);
|
||
|
|
||
|
static struct attribute *fsa9480_attributes[] = {
|
||
|
&dev_attr_device.attr,
|
||
|
&dev_attr_switch.attr,
|
||
|
NULL
|
||
|
};
|
||
|
|
||
|
static const struct attribute_group fsa9480_group = {
|
||
|
.attrs = fsa9480_attributes,
|
||
|
};
|
||
|
|
||
|
static void fsa9480_detect_dev(struct fsa9480_usbsw *usbsw, int intr)
|
||
|
{
|
||
|
int val1, val2, ctrl;
|
||
|
struct fsa9480_platform_data *pdata = usbsw->pdata;
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
|
||
|
val1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1);
|
||
|
val2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2);
|
||
|
ctrl = fsa9480_read_reg(client, FSA9480_REG_CTRL);
|
||
|
|
||
|
dev_info(&client->dev, "intr: 0x%x, dev1: 0x%x, dev2: 0x%x\n",
|
||
|
intr, val1, val2);
|
||
|
|
||
|
if (!intr)
|
||
|
goto out;
|
||
|
|
||
|
if (intr & INT_ATTACH) { /* Attached */
|
||
|
/* USB */
|
||
|
if (val1 & DEV_T1_USB_MASK || val2 & DEV_T2_USB_MASK) {
|
||
|
if (pdata->usb_cb)
|
||
|
pdata->usb_cb(FSA9480_ATTACHED);
|
||
|
|
||
|
if (usbsw->mansw) {
|
||
|
fsa9480_write_reg(client,
|
||
|
FSA9480_REG_MANSW1, usbsw->mansw);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* UART */
|
||
|
if (val1 & DEV_T1_UART_MASK || val2 & DEV_T2_UART_MASK) {
|
||
|
if (pdata->uart_cb)
|
||
|
pdata->uart_cb(FSA9480_ATTACHED);
|
||
|
|
||
|
if (!(ctrl & CON_MANUAL_SW)) {
|
||
|
fsa9480_write_reg(client,
|
||
|
FSA9480_REG_MANSW1, SW_UART);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* CHARGER */
|
||
|
if (val1 & DEV_T1_CHARGER_MASK) {
|
||
|
if (pdata->charger_cb)
|
||
|
pdata->charger_cb(FSA9480_ATTACHED);
|
||
|
}
|
||
|
|
||
|
/* JIG */
|
||
|
if (val2 & DEV_T2_JIG_MASK) {
|
||
|
if (pdata->jig_cb)
|
||
|
pdata->jig_cb(FSA9480_ATTACHED);
|
||
|
}
|
||
|
} else if (intr & INT_DETACH) { /* Detached */
|
||
|
/* USB */
|
||
|
if (usbsw->dev1 & DEV_T1_USB_MASK ||
|
||
|
usbsw->dev2 & DEV_T2_USB_MASK) {
|
||
|
if (pdata->usb_cb)
|
||
|
pdata->usb_cb(FSA9480_DETACHED);
|
||
|
}
|
||
|
|
||
|
/* UART */
|
||
|
if (usbsw->dev1 & DEV_T1_UART_MASK ||
|
||
|
usbsw->dev2 & DEV_T2_UART_MASK) {
|
||
|
if (pdata->uart_cb)
|
||
|
pdata->uart_cb(FSA9480_DETACHED);
|
||
|
}
|
||
|
|
||
|
/* CHARGER */
|
||
|
if (usbsw->dev1 & DEV_T1_CHARGER_MASK) {
|
||
|
if (pdata->charger_cb)
|
||
|
pdata->charger_cb(FSA9480_DETACHED);
|
||
|
}
|
||
|
|
||
|
/* JIG */
|
||
|
if (usbsw->dev2 & DEV_T2_JIG_MASK) {
|
||
|
if (pdata->jig_cb)
|
||
|
pdata->jig_cb(FSA9480_DETACHED);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
usbsw->dev1 = val1;
|
||
|
usbsw->dev2 = val2;
|
||
|
|
||
|
out:
|
||
|
ctrl &= ~CON_INT_MASK;
|
||
|
fsa9480_write_reg(client, FSA9480_REG_CTRL, ctrl);
|
||
|
}
|
||
|
|
||
|
static irqreturn_t fsa9480_irq_handler(int irq, void *data)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = data;
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
int intr;
|
||
|
|
||
|
/* clear interrupt */
|
||
|
fsa9480_read_irq(client, &intr);
|
||
|
|
||
|
/* device detection */
|
||
|
fsa9480_detect_dev(usbsw, intr);
|
||
|
|
||
|
return IRQ_HANDLED;
|
||
|
}
|
||
|
|
||
|
static int fsa9480_irq_init(struct fsa9480_usbsw *usbsw)
|
||
|
{
|
||
|
struct fsa9480_platform_data *pdata = usbsw->pdata;
|
||
|
struct i2c_client *client = usbsw->client;
|
||
|
int ret;
|
||
|
int intr;
|
||
|
unsigned int ctrl = CON_MASK;
|
||
|
|
||
|
/* clear interrupt */
|
||
|
fsa9480_read_irq(client, &intr);
|
||
|
|
||
|
/* unmask interrupt (attach/detach only) */
|
||
|
fsa9480_write_reg(client, FSA9480_REG_INT1_MASK, 0xfc);
|
||
|
fsa9480_write_reg(client, FSA9480_REG_INT2_MASK, 0x1f);
|
||
|
|
||
|
usbsw->mansw = fsa9480_read_reg(client, FSA9480_REG_MANSW1);
|
||
|
|
||
|
if (usbsw->mansw)
|
||
|
ctrl &= ~CON_MANUAL_SW; /* Manual Switching Mode */
|
||
|
|
||
|
fsa9480_write_reg(client, FSA9480_REG_CTRL, ctrl);
|
||
|
|
||
|
if (pdata && pdata->cfg_gpio)
|
||
|
pdata->cfg_gpio();
|
||
|
|
||
|
if (client->irq) {
|
||
|
ret = request_threaded_irq(client->irq, NULL,
|
||
|
fsa9480_irq_handler,
|
||
|
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
|
||
|
"fsa9480 micro USB", usbsw);
|
||
|
if (ret) {
|
||
|
dev_err(&client->dev, "failed to reqeust IRQ\n");
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
device_init_wakeup(&client->dev, pdata->wakeup);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int __devinit fsa9480_probe(struct i2c_client *client,
|
||
|
const struct i2c_device_id *id)
|
||
|
{
|
||
|
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
|
||
|
struct fsa9480_usbsw *usbsw;
|
||
|
int ret = 0;
|
||
|
|
||
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
||
|
return -EIO;
|
||
|
|
||
|
usbsw = kzalloc(sizeof(struct fsa9480_usbsw), GFP_KERNEL);
|
||
|
if (!usbsw) {
|
||
|
dev_err(&client->dev, "failed to allocate driver data\n");
|
||
|
return -ENOMEM;
|
||
|
}
|
||
|
|
||
|
usbsw->client = client;
|
||
|
usbsw->pdata = client->dev.platform_data;
|
||
|
|
||
|
chip = usbsw;
|
||
|
|
||
|
i2c_set_clientdata(client, usbsw);
|
||
|
|
||
|
ret = fsa9480_irq_init(usbsw);
|
||
|
if (ret)
|
||
|
goto fail1;
|
||
|
|
||
|
ret = sysfs_create_group(&client->dev.kobj, &fsa9480_group);
|
||
|
if (ret) {
|
||
|
dev_err(&client->dev,
|
||
|
"failed to create fsa9480 attribute group\n");
|
||
|
goto fail2;
|
||
|
}
|
||
|
|
||
|
/* ADC Detect Time: 500ms */
|
||
|
fsa9480_write_reg(client, FSA9480_REG_TIMING1, 0x6);
|
||
|
|
||
|
if (chip->pdata->reset_cb)
|
||
|
chip->pdata->reset_cb();
|
||
|
|
||
|
/* device detection */
|
||
|
fsa9480_detect_dev(usbsw, INT_ATTACH);
|
||
|
|
||
|
pm_runtime_set_active(&client->dev);
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
fail2:
|
||
|
if (client->irq)
|
||
|
free_irq(client->irq, NULL);
|
||
|
fail1:
|
||
|
i2c_set_clientdata(client, NULL);
|
||
|
kfree(usbsw);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int __devexit fsa9480_remove(struct i2c_client *client)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client);
|
||
|
if (client->irq)
|
||
|
free_irq(client->irq, NULL);
|
||
|
i2c_set_clientdata(client, NULL);
|
||
|
|
||
|
sysfs_remove_group(&client->dev.kobj, &fsa9480_group);
|
||
|
device_init_wakeup(&client->dev, 0);
|
||
|
kfree(usbsw);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
#ifdef CONFIG_PM
|
||
|
|
||
|
static int fsa9480_suspend(struct i2c_client *client, pm_message_t state)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client);
|
||
|
struct fsa9480_platform_data *pdata = usbsw->pdata;
|
||
|
|
||
|
if (device_may_wakeup(&client->dev) && client->irq)
|
||
|
enable_irq_wake(client->irq);
|
||
|
|
||
|
if (pdata->usb_power)
|
||
|
pdata->usb_power(0);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int fsa9480_resume(struct i2c_client *client)
|
||
|
{
|
||
|
struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client);
|
||
|
int dev1, dev2;
|
||
|
|
||
|
if (device_may_wakeup(&client->dev) && client->irq)
|
||
|
disable_irq_wake(client->irq);
|
||
|
|
||
|
/*
|
||
|
* Clear Pending interrupt. Note that detect_dev does what
|
||
|
* the interrupt handler does. So, we don't miss pending and
|
||
|
* we reenable interrupt if there is one.
|
||
|
*/
|
||
|
fsa9480_read_reg(client, FSA9480_REG_INT1);
|
||
|
fsa9480_read_reg(client, FSA9480_REG_INT2);
|
||
|
|
||
|
dev1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1);
|
||
|
dev2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2);
|
||
|
|
||
|
/* device detection */
|
||
|
fsa9480_detect_dev(usbsw, (dev1 || dev2) ? INT_ATTACH : INT_DETACH);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
#else
|
||
|
|
||
|
#define fsa9480_suspend NULL
|
||
|
#define fsa9480_resume NULL
|
||
|
|
||
|
#endif /* CONFIG_PM */
|
||
|
|
||
|
static const struct i2c_device_id fsa9480_id[] = {
|
||
|
{"fsa9480", 0},
|
||
|
{}
|
||
|
};
|
||
|
MODULE_DEVICE_TABLE(i2c, fsa9480_id);
|
||
|
|
||
|
static struct i2c_driver fsa9480_i2c_driver = {
|
||
|
.driver = {
|
||
|
.name = "fsa9480",
|
||
|
},
|
||
|
.probe = fsa9480_probe,
|
||
|
.remove = __devexit_p(fsa9480_remove),
|
||
|
.resume = fsa9480_resume,
|
||
|
.suspend = fsa9480_suspend,
|
||
|
.id_table = fsa9480_id,
|
||
|
};
|
||
|
|
||
|
static int __init fsa9480_init(void)
|
||
|
{
|
||
|
return i2c_add_driver(&fsa9480_i2c_driver);
|
||
|
}
|
||
|
module_init(fsa9480_init);
|
||
|
|
||
|
static void __exit fsa9480_exit(void)
|
||
|
{
|
||
|
i2c_del_driver(&fsa9480_i2c_driver);
|
||
|
}
|
||
|
module_exit(fsa9480_exit);
|
||
|
|
||
|
MODULE_AUTHOR("Minkyu Kang <mk7.kang@samsung.com>");
|
||
|
MODULE_DESCRIPTION("FSA9480 USB Switch driver");
|
||
|
MODULE_LICENSE("GPL");
|