static void update_fw_p4(struct wacom_i2c *wac_i2c)
{
int ret = 0;
int retry = 3;
#if !defined(CONFIG_TARGET_LOCALE_USA)
/* the firmware should be updated in factory mode durring the boot */
if (!epen_check_factory_mode())
retry = 0;
#endif
while (retry--) {
printk(KERN_DEBUG "epen:INIT_FIRMWARE_FLASH is enabled.\n");
ret = wacom_i2c_flash(wac_i2c);
if (ret == 0)
break;
printk(KERN_DEBUG "epen:update failed. retry %d, ret %d\n",
retry, ret);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
}
printk(KERN_DEBUG "epen:flashed.(%d)\n", ret);
}
static ssize_t epen_reset_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct wacom_i2c *wac_i2c = dev_get_drvdata(dev);
int ret;
int val;
sscanf(buf, "%d", &val);
if (val == 1) {
wacom_enable_irq(wac_i2c, false);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
/* I2C Test */
wacom_i2c_query(wac_i2c);
wacom_enable_irq(wac_i2c, true);
printk(KERN_DEBUG "epen:%s, result %d\n", __func__,
wac_i2c->query_status);
}
return count;
}
static ssize_t epen_reset_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct wacom_i2c *wac_i2c = dev_get_drvdata(dev);
int ret;
int val;
sscanf(buf, "%d", &val);
if (val == 1) {
disable_irq(wac_i2c->client->irq);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
/* I2C Test */
ret = wacom_i2c_query(wac_i2c);
enable_irq(wac_i2c->client->irq);
if (ret < 0)
epen_reset_result = false;
else
epen_reset_result = true;
printk(KERN_DEBUG "[E-PEN] %s, result %d\n", __func__,
epen_reset_result);
}
return count;
}
static void update_work_func(struct work_struct *work)
{
int ret;
int retry = 2;
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, update_work);
printk(KERN_DEBUG "[E-PEN] %s\n", __func__);
disable_irq(wac_i2c->irq);
while (retry--) {
printk(KERN_DEBUG "[E-PEN] INIT_FIRMWARE_FLASH is enabled.\n");
ret = wacom_i2c_flash(wac_i2c);
if (ret == 0)
break;
printk(KERN_DEBUG "[E-PEN] update failed. retry %d, ret %d\n",
retry, ret);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
}
msleep(800);
printk(KERN_DEBUG "[E-PEN] flashed.(%d)\n", ret);
wacom_i2c_query(wac_i2c);
enable_irq(wac_i2c->irq);
}
int wacom_i2c_firm_update(struct wacom_i2c *wac_i2c)
{
int ret;
int retry = 3;
const struct firmware *firm_data = NULL;
firmware_updating_state = true;
while (retry--) {
ret =
request_firmware(&firm_data, firmware_name,
&wac_i2c->client->dev);
if (ret < 0) {
printk(KERN_ERR
"[E-PEN] Unable to open firmware. ret %d retry %d\n",
ret, retry);
continue;
}
wacom_i2c_set_firm_data((unsigned char *)firm_data->data);
ret = wacom_i2c_flash(wac_i2c);
if (ret == 0) {
release_firmware(firm_data);
break;
}
printk(KERN_ERR "[E-PEN] failed to write firmware(%d)\n", ret);
release_firmware(firm_data);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
}
firmware_updating_state = false;
if (ret < 0)
return -1;
return 0;
}
static void wacom_i2c_update_work(struct work_struct *work)
{
struct wacom_i2c *wac_i2c =
container_of(work, struct wacom_i2c, update_work);
u32 fw_ver_ic = wac_i2c->wac_feature->fw_version;
int ret;
int retry = 3;
mutex_lock(&wac_i2c->update_lock);
wacom_enable_irq(wac_i2c, false);
printk(KERN_DEBUG"epen:%s\n", __func__);
if (!wac_i2c->update_info.forced) {
#if defined(CONFIG_SAMSUNG_PRODUCT_SHIP)
if (fw_ver_ic == fw_ver_file) {
#else
if (fw_ver_ic >= fw_ver_file) {
#endif
printk(KERN_DEBUG"epen:pass fw update, ic ver %#x, img ver %#x\n",
fw_ver_ic, fw_ver_file);
goto err_update_load_fw;
}
}
wac_i2c->wac_feature->firm_update_status = 1;
ret = wacom_i2c_load_fw(wac_i2c);
if (ret < 0) {
printk(KERN_DEBUG"epen:failed to load fw(%d)\n", ret);
goto err_update_load_fw;
}
while (retry--) {
ret = wacom_i2c_flash(wac_i2c);
if (ret) {
printk(KERN_DEBUG"epen:failed to flash fw(%d)\n", ret);
continue;
}
break;
}
if (ret)
goto err_update_fw;
ret = wacom_i2c_query(wac_i2c);
if (ret < 0) {
printk(KERN_DEBUG"epen:failed to query to IC(%d)\n", ret);
goto err_update_fw;
}
err_update_fw:
wacom_i2c_unload_fw(wac_i2c);
err_update_load_fw:
wac_i2c->wac_feature->firm_update_status = 2;
wacom_enable_irq(wac_i2c, true);
mutex_unlock(&wac_i2c->update_lock);
}
static ssize_t epen_reset_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct wacom_i2c *wac_i2c = dev_get_drvdata(dev);
int val;
sscanf(buf, "%d", &val);
if (val == 1) {
wacom_enable_irq(wac_i2c, false);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
/* I2C Test */
wacom_i2c_query(wac_i2c);
wacom_enable_irq(wac_i2c, true);
printk(KERN_DEBUG "epen:%s, result %d\n", __func__,
wac_i2c->query_status);
}
return count;
}
static ssize_t epen_reset_result_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct wacom_i2c *wac_i2c = dev_get_drvdata(dev);
if (wac_i2c->query_status) {
printk(KERN_DEBUG "epen:%s, PASS\n", __func__);
return sprintf(buf, "PASS\n");
} else {
printk(KERN_DEBUG "epen:%s, FAIL\n", __func__);
return sprintf(buf, "FAIL\n");
}
}
#ifdef WACOM_USE_AVE_TRANSITION
static ssize_t epen_ave_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int v1, v2, v3, v4, v5;
int height;
sscanf(buf, "%d%d%d%d%d%d", &height, &v1, &v2, &v3, &v4, &v5);
if (height < 0 || height > 2) {
printk(KERN_DEBUG"epen:Height err %d\n", height);
return count;
}
g_aveLevel_C[height] = v1;
g_aveLevel_X[height] = v2;
g_aveLevel_Y[height] = v3;
g_aveLevel_Trs[height] = v4;
g_aveLevel_Cor[height] = v5;
printk(KERN_DEBUG "epen:%s, v1 %d v2 %d v3 %d v4 %d\n", __func__,
v1, v2, v3, v4);
return count;
}
static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wacom_g5_platform_data *pdata = client->dev.platform_data;
struct wacom_i2c *wac_i2c;
struct input_dev *input;
int ret = 0;
if (pdata == NULL) {
printk(KERN_ERR "%s: no pdata\n", __func__);
ret = -ENODEV;
goto err_i2c_fail;
}
/*Check I2C functionality */
ret = i2c_check_functionality(client->adapter, I2C_FUNC_I2C);
if (!ret) {
printk(KERN_ERR "epen:No I2C functionality found\n");
ret = -ENODEV;
goto err_i2c_fail;
}
/*Obtain kernel memory space for wacom i2c */
wac_i2c = kzalloc(sizeof(struct wacom_i2c), GFP_KERNEL);
if (NULL == wac_i2c) {
printk(KERN_ERR "epen:failed to allocate wac_i2c.\n");
ret = -ENOMEM;
goto err_freemem;
}
wac_i2c->client_boot = i2c_new_dummy(client->adapter,
WACOM_I2C_BOOT);
if (!wac_i2c->client_boot) {
dev_err(&client->dev, "Fail to register sub client[0x%x]\n",
WACOM_I2C_BOOT);
}
input = input_allocate_device();
if (NULL == input) {
printk(KERN_ERR "epen:failed to allocate input device.\n");
ret = -ENOMEM;
goto err_input_allocate_device;
}
wacom_i2c_set_input_values(client, wac_i2c, input);
wac_i2c->wac_feature = &wacom_feature_EMR;
wac_i2c->wac_pdata = pdata;
wac_i2c->input_dev = input;
wac_i2c->client = client;
wac_i2c->irq = client->irq;
/*init_completion(&wac_i2c->init_done);*/
#ifdef WACOM_PDCT_WORK_AROUND
wac_i2c->irq_pdct = gpio_to_irq(pdata->gpio_pendct);
wac_i2c->pen_pdct = PDCT_NOSIGNAL;
#endif
#ifdef WACOM_PEN_DETECT
wac_i2c->gpio_pen_insert = pdata->gpio_pen_insert;
#endif
#ifdef WACOM_HAVE_FWE_PIN
wac_i2c->have_fwe_pin = true;
#ifdef CONFIG_MACH_T0
if (system_rev < WACOM_FWE1_HWID)
wac_i2c->have_fwe_pin = false;
#endif
#endif
#ifdef WACOM_IMPORT_FW_ALGO
wac_i2c->use_offset_table = true;
wac_i2c->use_aveTransition = false;
wacom_init_fw_algo(wac_i2c);
#endif
/*Change below if irq is needed */
wac_i2c->irq_flag = 1;
/*Register callbacks */
wac_i2c->callbacks.check_prox = wacom_check_emr_prox;
if (wac_i2c->wac_pdata->register_cb)
wac_i2c->wac_pdata->register_cb(&wac_i2c->callbacks);
/* Firmware Feature */
wacom_i2c_init_firm_data();
/* Power on */
#if defined(CONFIG_MACH_Q1_BD)
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
#else
wac_i2c->wac_pdata->resume_platform_hw();
msleep(200);
#endif
wac_i2c->power_enable = true;
wacom_i2c_query(wac_i2c);
wacom_init_abs_params(wac_i2c);
input_set_drvdata(input, wac_i2c);
/*Change below if irq is needed */
wac_i2c->irq_flag = 1;
/*Set client data */
i2c_set_clientdata(client, wac_i2c);
i2c_set_clientdata(wac_i2c->client_boot, wac_i2c);
/*Initializing for semaphor */
mutex_init(&wac_i2c->lock);
wake_lock_init(&wac_i2c->wakelock, WAKE_LOCK_SUSPEND, "wacom");
INIT_DELAYED_WORK(&wac_i2c->resume_work, wacom_i2c_resume_work);
#if defined(WACOM_IRQ_WORK_AROUND)
INIT_DELAYED_WORK(&wac_i2c->pendct_dwork, wacom_i2c_pendct_work);
#endif
#ifdef WACOM_STATE_CHECK
INIT_DELAYED_WORK(&wac_i2c->wac_statecheck_work, wac_statecheck_work);
#endif
/*Before registering input device, data in each input_dev must be set */
ret = input_register_device(input);
if (ret) {
pr_err("epen:failed to register input device.\n");
goto err_register_device;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
wac_i2c->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
wac_i2c->early_suspend.suspend = wacom_i2c_early_suspend;
wac_i2c->early_suspend.resume = wacom_i2c_late_resume;
register_early_suspend(&wac_i2c->early_suspend);
#endif
wac_i2c->dev = device_create(sec_class, NULL, 0, NULL, "sec_epen");
if (IS_ERR(wac_i2c->dev)) {
printk(KERN_ERR "Failed to create device(wac_i2c->dev)!\n");
goto err_sysfs_create_group;
}
dev_set_drvdata(wac_i2c->dev, wac_i2c);
ret = sysfs_create_group(&wac_i2c->dev->kobj, &epen_attr_group);
if (ret) {
printk(KERN_ERR
"epen:failed to create sysfs group\n");
goto err_sysfs_create_group;
}
/* firmware info */
printk(KERN_NOTICE "epen:wacom fw ver : 0x%x, new fw ver : 0x%x\n",
wac_i2c->wac_feature->fw_version, Firmware_version_of_file);
#ifdef CONFIG_SEC_TOUCHSCREEN_DVFS_LOCK
INIT_DELAYED_WORK(&wac_i2c->dvfs_work, free_dvfs_lock);
if (exynos_cpufreq_get_level(WACOM_DVFS_LOCK_FREQ,
&wac_i2c->cpufreq_level))
printk(KERN_ERR "epen:exynos_cpufreq_get_level Error\n");
#ifdef SEC_BUS_LOCK
wac_i2c->dvfs_lock_status = false;
#if defined(CONFIG_MACH_P4NOTE) || defined(CONFIG_MACH_KONA)
wac_i2c->bus_dev = dev_get("exynos-busfreq");
#endif /* CONFIG_MACH_P4NOTE */
#endif /* SEC_BUS_LOCK */
#endif /* CONFIG_SEC_TOUCHSCREEN_DVFS_LOCK */
/*Request IRQ */
if (wac_i2c->irq_flag) {
ret =
request_threaded_irq(wac_i2c->irq, NULL, wacom_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_ONESHOT, wac_i2c->name, wac_i2c);
if (ret < 0) {
printk(KERN_ERR
"epen:failed to request irq(%d) - %d\n",
wac_i2c->irq, ret);
goto err_request_irq;
}
#if defined(WACOM_PDCT_WORK_AROUND)
ret =
request_threaded_irq(wac_i2c->irq_pdct, NULL,
wacom_interrupt_pdct,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
wac_i2c->name, wac_i2c);
if (ret < 0) {
printk(KERN_ERR
"epen:failed to request irq(%d) - %d\n",
wac_i2c->irq_pdct, ret);
goto err_request_irq;
}
#endif
}
#ifdef WACOM_DEBOUNCEINT_BY_ESD
/*Invert gpio value for first irq.
schedule_delayed_work in wacom_i2c_input_open*/
pen_insert_state = gpio_get_value(wac_i2c->gpio_pen_insert);
wac_i2c->pen_insert = pen_insert_state;
#if defined(CONFIG_MACH_T0)
if (wac_i2c->invert_pen_insert) {
wac_i2c->pen_insert = !wac_i2c->pen_insert;
pen_insert_state = wac_i2c->pen_insert;
}
#endif
#endif
/*complete_all(&wac_i2c->init_done);*/
return 0;
err_request_irq:
err_sysfs_create_group:
err_register_device:
input_unregister_device(input);
err_input_allocate_device:
input_free_device(input);
err_freemem:
kfree(wac_i2c);
err_i2c_fail:
return ret;
}
int wacom_i2c_firm_update(struct wacom_i2c *wac_i2c)
{
int ret;
int retry = 3;
const struct firmware *firm_data = NULL;
#if defined(CONFIG_MACH_KONA)
u8 *flash_data;
flash_data = kmalloc(65536*2, GFP_KERNEL);
if (IS_ERR(flash_data)) {
printk(KERN_ERR
"[E-PEN] %s, kmalloc failed\n", __func__);
return -1;
}
memset((void *)flash_data, 0xff, 65536*2);
#endif
firmware_updating_state = true;
while (retry--) {
ret =
request_firmware(&firm_data, firmware_name,
&wac_i2c->client->dev);
if (ret < 0) {
printk(KERN_ERR
"[E-PEN] Unable to open firmware. ret %d retry %d\n",
ret, retry);
continue;
}
#if defined(CONFIG_MACH_KONA)
memcpy((void *)flash_data,
(const void *)firm_data->data,
firm_data->size);
wacom_i2c_set_firm_data((unsigned char *)flash_data);
#else
wacom_i2c_set_firm_data((unsigned char *)firm_data->data);
#endif
ret = wacom_i2c_flash(wac_i2c);
if (ret == 0) {
release_firmware(firm_data);
break;
}
printk(KERN_ERR "[E-PEN] failed to write firmware(%d)\n", ret);
release_firmware(firm_data);
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
}
firmware_updating_state = false;
#if defined(CONFIG_MACH_KONA)
kfree(flash_data);
#endif
if (ret < 0)
return -1;
return 0;
}
static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wacom_g5_platform_data *pdata = client->dev.platform_data;
struct wacom_i2c *wac_i2c;
struct input_dev *input;
int ret = 0;
if (pdata == NULL) {
printk(KERN_ERR "%s: no pdata\n", __func__);
ret = -ENODEV;
goto err_i2c_fail;
}
/*Check I2C functionality */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
printk(KERN_ERR "[E-PEN] No I2C functionality found\n");
ret = -ENODEV;
goto err_i2c_fail;
}
/*Obtain kernel memory space for wacom i2c */
wac_i2c = kzalloc(sizeof(struct wacom_i2c), GFP_KERNEL);
if (NULL == wac_i2c) {
printk(KERN_ERR "[E-PEN] failed to allocate wac_i2c.\n");
ret = -ENOMEM;
goto err_freemem;
}
input = input_allocate_device();
if (NULL == input) {
printk(KERN_ERR "[E-PEN] failed to allocate input device.\n");
ret = -ENOMEM;
goto err_input_allocate_device;
} else
wacom_i2c_set_input_values(client, wac_i2c, input);
wac_i2c->wac_feature = &wacom_feature_EMR;
wac_i2c->wac_pdata = pdata;
wac_i2c->input_dev = input;
wac_i2c->client = client;
wac_i2c->irq = client->irq;
#ifdef WACOM_PDCT_WORK_AROUND
wac_i2c->irq_pdct = gpio_to_irq(pdata->gpio_pendct);
#endif
/*Change below if irq is needed */
wac_i2c->irq_flag = 1;
/*Register callbacks */
wac_i2c->callbacks.check_prox = wacom_check_emr_prox;
if (wac_i2c->wac_pdata->register_cb)
wac_i2c->wac_pdata->register_cb(&wac_i2c->callbacks);
/* Firmware Feature */
wacom_i2c_init_firm_data();
#if defined(CONFIG_MACH_Q1_BD)
/* Change Origin offset by rev */
if (system_rev < 6) {
origin_offset[0] = origin_offset_48[0];
origin_offset[1] = origin_offset_48[1];
}
/* Reset IC */
wacom_i2c_reset_hw(wac_i2c->wac_pdata);
#endif
#if defined(CONFIG_MACH_Q1_BD) || defined(CONFIG_MACH_P4NOTE)
wac_i2c->wac_pdata->resume_platform_hw();
msleep(200);
#endif
ret = wacom_i2c_query(wac_i2c);
if (ret < 0)
epen_reset_result = false;
else
epen_reset_result = true;
INIT_WORK(&wac_i2c->update_work, update_work_func);
#if defined(CONFIG_MACH_P4NOTE)
if (pdata->xy_switch) {
input_set_abs_params(input, ABS_X, WACOM_POSY_OFFSET,
wac_i2c->wac_feature->y_max, 4, 0);
input_set_abs_params(input, ABS_Y, WACOM_POSX_OFFSET,
wac_i2c->wac_feature->x_max, 4, 0);
} else {
input_set_abs_params(input, ABS_X, WACOM_POSX_OFFSET,
wac_i2c->wac_feature->x_max, 4, 0);
input_set_abs_params(input, ABS_Y, WACOM_POSY_OFFSET,
wac_i2c->wac_feature->y_max, 4, 0);
}
input_set_abs_params(input, ABS_PRESSURE, 0,
wac_i2c->wac_feature->pressure_max, 0, 0);
#else
input_set_abs_params(wac_i2c->input_dev, ABS_X, pdata->min_x,
pdata->max_x, 4, 0);
input_set_abs_params(wac_i2c->input_dev, ABS_Y, pdata->min_y,
pdata->max_y, 4, 0);
input_set_abs_params(wac_i2c->input_dev, ABS_PRESSURE,
pdata->min_pressure, pdata->max_pressure, 0, 0);
#endif
input_set_drvdata(input, wac_i2c);
/*Before registering input device, data in each input_dev must be set */
ret = input_register_device(input);
if (ret) {
pr_err("[E-PEN] failed to register input device.\n");
goto err_register_device;
}
/*Change below if irq is needed */
wac_i2c->irq_flag = 1;
/*Set client data */
i2c_set_clientdata(client, wac_i2c);
/*Initializing for semaphor */
mutex_init(&wac_i2c->lock);
wake_lock_init(&wac_i2c->wakelock, WAKE_LOCK_SUSPEND, "wacom");
INIT_DELAYED_WORK(&wac_i2c->resume_work, wacom_i2c_resume_work);
#if defined(WACOM_IRQ_WORK_AROUND)
INIT_DELAYED_WORK(&wac_i2c->pendct_dwork, wacom_i2c_pendct_work);
#endif
/*Request IRQ */
if (wac_i2c->irq_flag) {
ret =
request_threaded_irq(wac_i2c->irq, NULL, wacom_interrupt,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_ONESHOT, wac_i2c->name, wac_i2c);
if (ret < 0) {
printk(KERN_ERR
"[E-PEN]: failed to request irq(%d) - %d\n",
wac_i2c->irq, ret);
goto err_request_irq;
}
#if defined(WACOM_PDCT_WORK_AROUND)
ret =
request_threaded_irq(wac_i2c->irq_pdct, NULL,
wacom_interrupt_pdct,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
wac_i2c->name, wac_i2c);
if (ret < 0) {
printk(KERN_ERR
"[E-PEN]: failed to request irq(%d) - %d\n",
wac_i2c->irq_pdct, ret);
goto err_request_irq;
}
#endif
}
#ifdef CONFIG_HAS_EARLYSUSPEND
wac_i2c->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
wac_i2c->early_suspend.suspend = wacom_i2c_early_suspend;
wac_i2c->early_suspend.resume = wacom_i2c_late_resume;
register_early_suspend(&wac_i2c->early_suspend);
#endif
wac_i2c->dev = device_create(sec_class, NULL, 0, NULL, "sec_epen");
if (IS_ERR(wac_i2c->dev))
printk(KERN_ERR "Failed to create device(wac_i2c->dev)!\n");
else {
dev_set_drvdata(wac_i2c->dev, wac_i2c);
ret = sysfs_create_group(&wac_i2c->dev->kobj, &epen_attr_group);
if (ret) {
printk(KERN_ERR
"[E-PEN]: failed to create sysfs group\n");
goto err_sysfs_create_group;
}
}
/* firmware info */
printk(KERN_NOTICE "[E-PEN] wacom fw ver : 0x%x, new fw ver : 0x%x\n",
wac_i2c->wac_feature->fw_version, Firmware_version_of_file);
#ifdef CONFIG_SEC_TOUCHSCREEN_DVFS_LOCK
INIT_DELAYED_WORK(&wac_i2c->dvfs_work, free_dvfs_lock);
if (exynos_cpufreq_get_level(500000, &wac_i2c->cpufreq_level))
printk(KERN_ERR "[E-PEN] exynos_cpufreq_get_level Error\n");
#ifdef SEC_BUS_LOCK
wac_i2c->dvfs_lock_status = false;
#if defined(CONFIG_MACH_P4NOTE)
wac_i2c->bus_dev = dev_get("exynos-busfreq");
#endif /* CONFIG_MACH_P4NOTE */
#endif /* SEC_BUS_LOCK */
#endif /* CONFIG_SEC_TOUCHSCREEN_DVFS_LOCK */
return 0;
err_sysfs_create_group:
free_irq(wac_i2c->irq, wac_i2c);
#ifdef WACOM_PDCT_WORK_AROUND
free_irq(wac_i2c->irq_pdct, wac_i2c);
#endif
err_request_irq:
err_register_device:
input_unregister_device(input);
input = NULL;
err_input_allocate_device:
input_free_device(input);
err_freemem:
kfree(wac_i2c);
err_i2c_fail:
return ret;
}
