static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wacom_g5_platform_data *pdata;
struct wacom_i2c *wac_i2c;
struct input_dev *input;
int ret = 0;
int error;
int fw_ver;
/*Check I2C functionality */
ret = i2c_check_functionality(client->adapter, I2C_FUNC_I2C);
if (!ret) {
printk(KERN_ERR "%s: No I2C functionality found\n", __func__);
ret = -ENODEV;
goto err_i2c_fail;
}
/*Obtain kernel memory space for wacom i2c */
if (client->dev.of_node) {
pdata = devm_kzalloc(&client->dev,
sizeof(struct wacom_g5_platform_data), GFP_KERNEL);
if (!pdata) {
dev_err(&client->dev,
"%s: Failed to allocate memory\n",
__func__);
return -ENOMEM;
}
error = wacom_parse_dt(&client->dev, pdata);
if (error)
return error;
} else {
pdata = client->dev.platform_data;
if (pdata == NULL) {
dev_err(&client->dev, "%s: no pdata\n", __func__);
ret = -ENODEV;
goto err_i2c_fail;
}
}
wacom_connect_platform_data(pdata);
wacom_request_gpio(pdata);
wac_i2c = kzalloc(sizeof(struct wacom_i2c), GFP_KERNEL);
if (NULL == wac_i2c) {
dev_err(&client->dev,
"%s: failed to allocate wac_i2c.\n",
__func__);
ret = -ENOMEM;
goto err_i2c_fail;
}
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) {
dev_err(&client->dev,
"%s: failed to allocate input device.\n",
__func__);
ret = -ENOMEM;
goto err_freemem;
}
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;
client->irq = gpio_to_irq(pdata->gpio_int);
printk(KERN_ERR "%s: wacom : gpio_to_irq : %d\n",
__func__, client->irq);
wac_i2c->irq = client->irq;
/*Set client data */
i2c_set_clientdata(client, wac_i2c);
i2c_set_clientdata(wac_i2c->client_boot, wac_i2c);
#ifdef WACOM_PDCT_WORK_AROUND
wac_i2c->irq_pdct = gpio_to_irq(pdata->gpio_pen_pdct);
wac_i2c->pen_pdct = PDCT_NOSIGNAL;
#endif
#ifdef WACOM_PEN_DETECT
wac_i2c->gpio_pen_insert = pdata->gpio_pen_insert;
wac_i2c->irq_pen_insert = gpio_to_irq(wac_i2c->gpio_pen_insert);
#endif
#ifdef WACOM_IMPORT_FW_ALGO
wac_i2c->use_offset_table = true;
wac_i2c->use_aveTransition = false;
#endif
#ifdef USE_WACOM_CALLBACK
/*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);
#endif
#ifdef CONFIG_SEC_VIENNA_PROJECT
if (system_rev >= WACOM_BOOT_REVISION) {
wac_i2c->wac_pdata->ic_mpu_ver = MPU_W9007;
wac_i2c->boot_ver = 0x92;
}
#endif
#ifdef CONFIG_SEC_LT03_PROJECT
wac_i2c->boot_ver = 0x92;
#endif
if (wac_i2c->wac_pdata->ic_mpu_ver > 0) {
wac_i2c->ic_mpu_ver = wac_i2c->wac_pdata->ic_mpu_ver;
wac_i2c->wac_pdata->compulsory_flash_mode(wac_i2c, false);
wac_i2c->wac_pdata->wacom_start(wac_i2c);
msleep(200);
} else {
wac_i2c->wac_pdata->compulsory_flash_mode(wac_i2c, true);
/*Reset */
wac_i2c->wac_pdata->wacom_start(wac_i2c);
msleep(200);
ret = wacom_check_mpu_version(wac_i2c);
if (ret == -ETIMEDOUT)
#if defined(CONFIG_SEC_H_PROJECT) || defined(CONFIG_SEC_FRESCO_PROJECT)
goto err_wacom_i2c_send_timeout;
#else
pr_err("[E-PEN] wacom_i2c_send failed.\n");
#endif
wac_i2c->ic_mpu_ver = wacom_check_flash_mode(wac_i2c, BOOT_MPU);
dev_info(&wac_i2c->client->dev,
"%s: mpu version: %x\n", __func__, ret);
if (wac_i2c->ic_mpu_ver == MPU_W9001)
wac_i2c->client_boot = i2c_new_dummy(client->adapter,
WACOM_I2C_9001_BOOT);
else if (wac_i2c->ic_mpu_ver == MPU_W9007) {
ret = wacom_enter_bootloader(wac_i2c);
if (ret < 0) {
dev_info(&wac_i2c->client->dev,
"%s: failed to get BootLoader version, %d\n", __func__, ret);
goto err_wacom_i2c_bootloader_ver;
} else {
dev_info(&wac_i2c->client->dev,
"%s: BootLoader version: %x\n", __func__, ret);
}
}
wac_i2c->wac_pdata->compulsory_flash_mode(wac_i2c, false);
wac_i2c->wac_pdata->reset_platform_hw(wac_i2c);
wac_i2c->power_enable = true;
}
/* Firmware Feature */
wacom_i2c_init_firm_data();
pr_err("%s: wacon ic turn on\n", __func__);
fw_ver = wacom_i2c_query(wac_i2c);
wacom_init_abs_params(wac_i2c);
input_set_drvdata(input, wac_i2c);
/*Initializing for semaphor */
mutex_init(&wac_i2c->lock);
#if defined(CONFIG_SEC_LT03_PROJECT) || defined(CONFIG_SEC_VIENNA_PROJECT)
mutex_init(&wac_i2c->irq_lock);
#endif
#ifdef WACOM_BOOSTER
wacom_init_dvfs(wac_i2c);
#endif
INIT_DELAYED_WORK(&wac_i2c->resume_work, wacom_i2c_resume_work);
#ifdef USE_WACOM_BLOCK_KEYEVENT
INIT_DELAYED_WORK(&wac_i2c->touch_pressed_work, wacom_i2c_touch_pressed_work);
wac_i2c->key_delay_time = 100;
#endif
#ifdef USE_WACOM_LCD_WORKAROUND
wac_i2c->wait_done = true;
wac_i2c->delay_time = 5;
INIT_DELAYED_WORK(&wac_i2c->read_vsync_work, wacom_i2c_read_vsync_work);
wac_i2c->boot_done = false;
INIT_DELAYED_WORK(&wac_i2c->boot_done_work, wacom_i2c_boot_done_work);
#endif
#ifdef WACOM_PEN_DETECT
INIT_DELAYED_WORK(&wac_i2c->pen_insert_dwork, pen_insert_work);
#endif
#ifdef WACOM_RESETPIN_DELAY
INIT_DELAYED_WORK(&wac_i2c->work_wacom_reset, wacom_reset);
#endif
/*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_input_allocate_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)) {
dev_err(&wac_i2c->client->dev,
"%s: Failed to create device(wac_i2c->dev)!\n",
__func__);
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) {
dev_err(&wac_i2c->client->dev,
"%s: failed to create sysfs group\n",
__func__);
goto err_sysfs_create_group;
}
ret = wacom_firmware_update(wac_i2c);
if (ret) {
dev_err(&wac_i2c->client->dev,
"%s: firmware update failed.\n",
__func__);
if (fw_ver > 0 && wac_i2c->ic_mpu_ver < 0)
dev_err(&wac_i2c->client->dev,
"%s: read query but not enter boot mode[%x,%x]\n",
__func__, fw_ver, wac_i2c->ic_mpu_ver);
else
goto err_fw_update;
}
/*Request IRQ */
if (pdata->irq_flags) {
ret =
request_threaded_irq(wac_i2c->irq, NULL, wacom_interrupt,
IRQF_DISABLED | pdata->irq_flags |
IRQF_ONESHOT, wac_i2c->name, wac_i2c);
if (ret < 0) {
dev_err(&wac_i2c->client->dev,
"%s: failed to request irq(%d) - %d\n",
__func__, wac_i2c->irq, ret);
goto err_fw_update;
}
#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) {
dev_err(&wac_i2c->client->dev,
"%s: failed to request irq(%d) - %d\n",
__func__, wac_i2c->irq_pdct, ret);
goto err_request_irq_pdct;
}
#endif
#ifdef WACOM_PEN_DETECT
ret = request_threaded_irq(
wac_i2c->irq_pen_insert, NULL,
wacom_pen_detect,
IRQF_DISABLED | IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"pen_insert", wac_i2c);
if (ret < 0) {
dev_err(&wac_i2c->client->dev,
"%s: failed to request irq(%d) - %d\n",
__func__, wac_i2c->irq_pen_insert, ret);
goto err_request_irq_pen_inster;
}
enable_irq_wake(wac_i2c->irq_pen_insert);
/* update the current status */
schedule_delayed_work(&wac_i2c->pen_insert_dwork, HZ / 2);
#endif
}
#ifdef USE_WACOM_LCD_WORKAROUND
schedule_delayed_work(&wac_i2c->boot_done_work,
msecs_to_jiffies(20 * 1000));
#endif
#ifdef WACOM_RESETPIN_DELAY
schedule_delayed_work(&wac_i2c->work_wacom_reset, msecs_to_jiffies(5000));
#endif
return 0;
err_request_irq_pen_inster:
#ifdef WACOM_PDCT_WORK_AROUND
free_irq(wac_i2c->irq_pdct, wac_i2c);
err_request_irq_pdct:
#endif
free_irq(wac_i2c->irq, wac_i2c);
err_fw_update:
sysfs_remove_group(&wac_i2c->dev->kobj, &epen_attr_group);
err_sysfs_create_group:
wac_i2c->init_fail = true;
input_unregister_device(input);
err_input_allocate_device:
cancel_delayed_work_sync(&wac_i2c->resume_work);
cancel_delayed_work_sync(&wac_i2c->touch_pressed_work);
#ifdef USE_WACOM_LCD_WORKAROUND
cancel_delayed_work_sync(&wac_i2c->read_vsync_work);
cancel_delayed_work_sync(&wac_i2c->boot_done_work);
#endif
cancel_delayed_work_sync(&wac_i2c->pen_insert_dwork);
#ifdef WACOM_RESETPIN_DELAY
cancel_delayed_work_sync(&wac_i2c->work_wacom_reset);
#endif
#ifdef WACOM_BOOSTER
cancel_delayed_work_sync(&wac_i2c->work_dvfs_off);
cancel_delayed_work_sync(&wac_i2c->work_dvfs_chg);
mutex_destroy(&wac_i2c->dvfs_lock);
#endif
wac_i2c->wac_pdata->wacom_stop(wac_i2c);
mutex_destroy(&wac_i2c->lock);
err_wacom_i2c_bootloader_ver:
#if defined(CONFIG_SEC_H_PROJECT) || defined(CONFIG_SEC_FRESCO_PROJECT)
err_wacom_i2c_send_timeout:
#endif
input_free_device(input);
err_freemem:
kfree(wac_i2c);
err_i2c_fail:
return ret;
}
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_alloc_mem;
}
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_alloc_input_dev;
}
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_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 */
wac_i2c->wac_pdata->resume_platform_hw();
msleep(200);
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);
mutex_init(&wac_i2c->update_lock);
mutex_init(&wac_i2c->irq_lock);
wake_lock_init(&wac_i2c->fw_wakelock, WAKE_LOCK_SUSPEND, "wacom");
INIT_DELAYED_WORK(&wac_i2c->resume_work, wacom_i2c_resume_work);
#ifdef LCD_FREQ_SYNC
mutex_init(&wac_i2c->freq_write_lock);
INIT_WORK(&wac_i2c->lcd_freq_work, wacom_i2c_lcd_freq_work);
INIT_DELAYED_WORK(&wac_i2c->lcd_freq_done_work, wacom_i2c_finish_lcd_freq_work);
if (likely(system_rev >= LCD_FREQ_SUPPORT_HWID))
wac_i2c->use_lcd_freq_sync = true;
#endif
#ifdef WACOM_USE_SOFTKEY_BLOCK
INIT_DELAYED_WORK(&wac_i2c->softkey_block_work, wacom_i2c_block_softkey_work);
wac_i2c->block_softkey = false;
#endif
INIT_WORK(&wac_i2c->update_work, wacom_i2c_update_work);
/*init wacom booster*/
#ifdef WACOM_BOOSTER
wacom_init_dvfs(wac_i2c);
wac_i2c->boost_level = WACOM_BOOSTER_LEVEL2;
#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");
ret = -ENODEV;
goto err_create_device;
}
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, fw_ver_file);
/*Request IRQ */
if (wac_i2c->irq_flag) {
ret =
request_threaded_irq(wac_i2c->irq, NULL, wacom_interrupt,
IRQF_DISABLED | EPEN_IRQF_TRIGGER_TYPE |
IRQF_ONESHOT, "sec_epen_irq", 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,
"sec_epen_pdct", 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_PEN_DETECT
init_pen_insert(wac_i2c);
#endif
wac_i2c->update_info.forced = false;
wac_i2c->update_info.fw_path = FW_BUILT_IN;
schedule_work(&wac_i2c->update_work);
/*complete_all(&wac_i2c->init_done);*/
return 0;
err_request_irq:
wake_lock_destroy(&wac_i2c->fw_wakelock);
sysfs_remove_group(&wac_i2c->dev->kobj,
&epen_attr_group);
err_sysfs_create_group:
device_destroy(sec_class, (dev_t)NULL);
err_create_device:
input_unregister_device(input);
input = NULL;
err_register_device:
input_free_device(input);
err_alloc_input_dev:
kfree(wac_i2c);
wac_i2c = NULL;
err_alloc_mem:
err_i2c_fail:
return ret;
}
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;
}
static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wacom_i2c *wac_i2c;
struct wacom_g5_platform_data *pdata = client->dev.platform_data;
int i, ret;
i = ret = 0;
printk(KERN_DEBUG "[E-PEN]:%s:\n", __func__);
/*Check I2C functionality*/
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
goto err3;
/*Obtain kernel memory space for wacom i2c*/
wac_i2c = kzalloc(sizeof(struct wacom_i2c), GFP_KERNEL);
if (wac_i2c == NULL) goto fail;
wac_i2c->wac_feature = &wacom_feature_EMR;
pdata->init_platform_hw();
/*Initializing for semaphor*/
mutex_init(&wac_i2c->lock);
/*Register platform data*/
wac_i2c->wac_pdata = client->dev.platform_data;
/*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);
/*Register wacom i2c to input device*/
wac_i2c->input_dev = input_allocate_device();
if (wac_i2c == NULL || wac_i2c->input_dev == NULL)
goto fail;
wacom_i2c_set_input_values(client, wac_i2c, wac_i2c->input_dev);
wac_i2c->client = client;
wac_i2c->irq = client->irq;
/*Change below if irq is needed*/
wac_i2c->irq_flag = 1;
#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
/*Init Featreus by hw rev*/
#if defined(CONFIG_USA_MODEL_SGH_I717)
if( get_hw_rev() == 0x01 ) {
printk("[E-PEN] Wacom driver is working for 4.4mm pitch pad.\n");
/* Firmware Feature */
Firmware_version_of_file = 0x340;
Binary = Binary_44;
}
else if( get_hw_rev() >= HWREV_PEN_PITCH4P4 ) {
printk("[E-PEN] Wacom driver is working for 4.4mm pitch pad.\n");
/* Firmware Feature */
Firmware_version_of_file = Firmware_version_of_file_44;
Binary = Binary_44;
}
#else
if( get_hw_rev() >= HWREV_PEN_PITCH4P4 ) {
printk("[E-PEN] Wacom driver is working for 4.4mm pitch pad.\n");
/* Firmware Feature */
Firmware_version_of_file = Firmware_version_of_file_44;
Binary = Binary_44;
}
else {
printk("[E-PEN] Wacom driver is working for 4.8mm pitch pad.\n");
/* Firmware Feature */
Firmware_version_of_file = Firmware_version_of_file_48;
Binary = Binary_48;
}
#endif
init_offset_tables();
INIT_WORK(&wac_i2c->update_work, update_work_func);
INIT_DELAYED_WORK(&wac_i2c->resume_work, wacom_i2c_resume_work);
/* Reset IC */
gpio_set_value(GPIO_PEN_RESET, 0);
msleep(200);
gpio_set_value(GPIO_PEN_RESET, 1);
msleep(200);
ret = wacom_i2c_query(wac_i2c);
if( ret < 0 )
epen_reset_result = false;
else
epen_reset_result = true;
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);
input_set_drvdata(wac_i2c->input_dev, wac_i2c);
/*Set client data*/
i2c_set_clientdata(client, wac_i2c);
/*Before registering input device, data in each input_dev must be set*/
if (input_register_device(wac_i2c->input_dev))
goto err2;
g_client = client;
/* if(wac_i2c->irq_flag) */
/* disable_irq(wac_i2c->irq); */
sec_epen= device_create(sec_class, NULL, 0, NULL, "sec_epen");
dev_set_drvdata(sec_epen, wac_i2c);
if (IS_ERR(sec_epen))
printk(KERN_ERR "Failed to create device(sec_epen)!\n");
if (device_create_file(sec_epen, &dev_attr_epen_firm_update)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_firm_update.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_firm_update_status)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_firm_update_status.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_firm_version)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_firm_version.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_rotation)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_rotation.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_hand)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_hand.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_reset)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_reset.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_reset_result)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_reset_result.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_checksum)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_checksum.attr.name);
if (device_create_file(sec_epen, &dev_attr_epen_checksum_result)< 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_epen_checksum_result.attr.name);
if (device_create_file(sec_epen, &dev_attr_set_epen_module_off) < 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_set_epen_module_off.attr.name);
if (device_create_file(sec_epen, &dev_attr_set_epen_module_on) < 0)
printk(KERN_ERR "Failed to create device file(%s)!\n", dev_attr_set_epen_module_on.attr.name);
/*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)
goto err1;
}
/* firmware update */
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);
if( wac_i2c->wac_feature->fw_version < Firmware_version_of_file )
{
#if defined(CONFIG_KOR_MODEL_SHV_E160S) || defined(CONFIG_KOR_MODEL_SHV_E160K) || defined(CONFIG_KOR_MODEL_SHV_E160L) || defined(CONFIG_JPN_MODEL_SC_05D)
printk("[E-PEN] %s\n", __func__);
disable_irq(wac_i2c->irq);
printk(KERN_NOTICE "[E-PEN]: INIT_FIRMWARE_FLASH is enabled.\n");
ret = wacom_i2c_flash(wac_i2c);
msleep(800);
printk(KERN_ERR "[E-PEN]: flashed.(%d)\n", ret);
wacom_i2c_query(wac_i2c);
enable_irq(wac_i2c->irq);
#else
schedule_work(&wac_i2c->update_work);
#endif
}
/* To send exact checksum data at sleep state ... Xtopher */
printk(KERN_ERR"[E-PEN]: Verify CHECKSUM.\n");
epen_checksum_read_atBoot(wac_i2c);
msleep(20);
return 0;
err3:
printk(KERN_ERR "[E-PEN]: No I2C functionality found\n");
return -ENODEV;
err2:
printk(KERN_ERR "[E-PEN]: err2 occured\n");
input_free_device(wac_i2c->input_dev);
return -EIO;
err1:
printk(KERN_ERR "[E-PEN]: err1 occured(num:%d)\n", ret);
input_free_device(wac_i2c->input_dev);
wac_i2c->input_dev = NULL;
return -EIO;
fail:
printk(KERN_ERR "[E-PEN]: fail occured\n");
return -ENOMEM;
}
static int wacom_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wacom_g5_platform_data *wac_pdata = client->dev.platform_data;
struct wacom_i2c *wac_i2c;
struct input_dev *input;
struct device *sec_epen;
int ret = 0;
/*Check I2C functionality*/
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
pr_err("[E-PEN]: No I2C functionality found\n");
ret = -ENODEV;
goto fail;
}
/*Obtain kernel memory space for wacom i2c*/
wac_i2c = kzalloc(sizeof(struct wacom_i2c), GFP_KERNEL);
if (NULL == wac_i2c) {
pr_err("[E-PEN]: failed to allocate wac_i2c.\n");
ret = -ENOMEM;
goto err_freemem;
}
input = input_allocate_device();
if (NULL == input) {
pr_err("[E-PEN]: failed to allocate input device.\n");
ret = -ENOMEM;
goto err_input_allocate_device;
}
wac_i2c->wac_feature = &wacom_feature_EMR;
wac_i2c->wac_pdata = wac_pdata;
wac_i2c->input_dev = input;
wac_i2c->client = client;
wac_i2c->irq = client->irq;
/*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);
wacom_i2c_query(wac_i2c);
#if defined(INIT_FIRMWARE_FLASH)
if (0 == wac_i2c->wac_feature->fw_version)
wacom_i2c_flash(wac_i2c);
#endif
wacom_i2c_set_input_values(client, wac_i2c, input);
if (wac_i2c->wac_pdata->xy_switch) {
input_set_abs_params(input, ABS_X, 0,
wac_i2c->wac_feature->y_max, 4, 0);
input_set_abs_params(input, ABS_Y, 0,
wac_i2c->wac_feature->x_max, 4, 0);
} else {
input_set_abs_params(input, ABS_X, 0,
wac_i2c->wac_feature->x_max, 4, 0);
input_set_abs_params(input, ABS_Y, 0,
wac_i2c->wac_feature->y_max, 4, 0);
}
input_set_abs_params(input, ABS_PRESSURE, 0,
wac_i2c->wac_feature->pressure_max, 0, 0);
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;
}
i2c_set_clientdata(client, wac_i2c);
/* if(wac_i2c->irq_flag) */
/* disable_irq(wac_i2c->irq); */
/*Initializing for semaphor*/
mutex_init(&wac_i2c->lock);
/*Request IRQ*/
if (wac_i2c->irq_flag) {
ret = request_threaded_irq(wac_i2c->irq, NULL,
wacom_interrupt,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
wac_i2c->name, wac_i2c);
if (ret < 0) {
pr_err("[E-PEN]: failed to request irq!\n");
goto err_irq;
}
}
g_client = client;
#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
sec_epen = device_create(sec_class, NULL, 0, wac_i2c, "sec_epen");
if (IS_ERR(sec_epen)) {
pr_err("[E-PEN]: failed to create device(sec_epen)!\n");
goto err_sysfs_create_group;
}
ret = sysfs_create_group(&sec_epen->kobj, &epen_attr_group);
if (ret) {
pr_err("[E-PEN]: failed to create sysfs group\n");
goto err_sysfs_create_group;
}
return 0;
err_sysfs_create_group:
free_irq(wac_i2c->irq, wac_i2c);
err_irq:
err_register_device:
input_unregister_device(input);
input = NULL;
err_input_allocate_device:
input_free_device(input);
err_freemem:
kfree(wac_i2c);
fail:
pr_err("[E-PEN]: fail occured\n");
return ret;
}
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;
}