static int flashlight_probe(struct platform_device *pdev)
{
struct flashlight_platform_data *flashlight = pdev->dev.platform_data;
struct flashlight_struct *fl_str;
int err = 0;
fl_str = kzalloc(sizeof(struct flashlight_struct), GFP_KERNEL);
if (!fl_str) {
printk(KERN_ERR "%s: kzalloc fail !!!\n", __func__);
return -ENOMEM;
}
err = flashlight_setup_gpio(flashlight, fl_str);
if (err < 0) {
printk(KERN_ERR "%s: setup GPIO fail !!!\n", __func__);
goto fail_free_mem;
}
spin_lock_init(&fl_str->spin_lock);
wake_lock_init(&fl_str->wake_lock, WAKE_LOCK_SUSPEND, pdev->name);
fl_str->fl_lcdev.name = pdev->name;
fl_str->fl_lcdev.brightness_set = fl_lcdev_brightness_set;
fl_str->fl_lcdev.brightness = 0;
err = led_classdev_register(&pdev->dev, &fl_str->fl_lcdev);
if (err < 0) {
printk(KERN_ERR "failed on led_classdev_register\n");
goto fail_free_gpio;
}
#ifdef FLASHLIGHT_ADJ_FUNC
if (fl_str->gpio_flash_adj) {
printk(KERN_DEBUG "%s: flash_adj exist, create attr file\n",
__func__);
err = device_create_file(fl_str->fl_lcdev.dev,
&dev_attr_flash_adj);
if (err != 0)
printk(KERN_WARNING "dev_attr_flash_adj failed\n");
}
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
fl_str->early_suspend_flashlight.suspend = flashlight_early_suspend;
fl_str->early_suspend_flashlight.resume = flashlight_late_resume;
register_early_suspend(&fl_str->early_suspend_flashlight);
#endif
hrtimer_init(&fl_str->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
fl_str->timer.function = flashlight_hrtimer_func;
fl_str->led_count = flashlight->led_count;
pr_info("%s: led_count = %d\n", __func__, fl_str->led_count);
this_fl_str = fl_str;
printk(KERN_INFO "%s: The Flashlight Driver is ready\n", __func__);
return 0;
fail_free_gpio:
wake_lock_destroy(&fl_str->wake_lock);
flashlight_free_gpio(flashlight, fl_str);
fail_free_mem:
kfree(fl_str);
printk(KERN_ERR "%s: The Flashlight driver is Failure\n", __func__);
return err;
}
static int flashlight_remove(struct platform_device *pdev)
{
struct flashlight_platform_data *flashlight = pdev->dev.platform_data;
flashlight_turn_off();
hrtimer_cancel(&this_fl_str->timer);
unregister_early_suspend(&this_fl_str->early_suspend_flashlight);
led_classdev_unregister(&this_fl_str->fl_lcdev);
flashlight_free_gpio(flashlight, this_fl_str);
kfree(this_fl_str);
return 0;
}
static int flashlight_probe(struct platform_device *pdev)
{
struct flashlight_platform_data *flashlight = pdev->dev.platform_data;
struct flashlight_struct *fl_str;
int err = 0;
fl_str = kzalloc(sizeof(struct flashlight_struct), GFP_KERNEL);
if (!fl_str) {
FLT_ERR_LOG("%s: kzalloc fail !!!\n", __func__);
return -ENOMEM;
}
err = flashlight_setup_gpio(flashlight, fl_str);
if (err < 0) {
FLT_ERR_LOG("%s: setup GPIO fail !!!\n", __func__);
goto fail_free_mem;
}
spin_lock_init(&fl_str->spin_lock);
fl_str->fl_lcdev.name = FLASHLIGHT_NAME;
fl_str->fl_lcdev.brightness_set = fl_lcdev_brightness_set;
fl_str->fl_lcdev.brightness = 0;
if (flashlight->flash_duration_ms)
fl_str->flash_sw_timeout_ms = flashlight->flash_duration_ms;
else /* load default value */
fl_str->flash_sw_timeout_ms = 600;
err = led_classdev_register(&pdev->dev, &fl_str->fl_lcdev);
if (err < 0) {
FLT_ERR_LOG("%s: failed on led_classdev_register\n", __func__);
goto fail_free_gpio;
}
#ifdef CONFIG_HAS_EARLYSUSPEND
fl_str->early_suspend_flashlight.suspend = flashlight_early_suspend;
fl_str->early_suspend_flashlight.resume = flashlight_late_resume;
register_early_suspend(&fl_str->early_suspend_flashlight);
#endif
hrtimer_init(&fl_str->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
fl_str->timer.function = flashlight_hrtimer_func;
this_fl_str = fl_str;
FLT_INFO_LOG("%s: The Flashlight Driver is ready\n", __func__);
return 0;
fail_free_gpio:
flashlight_free_gpio(flashlight, fl_str);
fail_free_mem:
kfree(fl_str);
return err;
}
static int flashlight_remove(struct platform_device *pdev)
{
struct flashlight_platform_data *flashlight = pdev->dev.platform_data;
flashlight_turn_off();
hrtimer_cancel(&this_fl_str->timer);
unregister_early_suspend(&this_fl_str->early_suspend_flashlight);
#ifdef FLASHLIGHT_ADJ_FUNC
if (this_fl_str->gpio_flash_adj) {
device_remove_file(this_fl_str->fl_lcdev.dev,
&dev_attr_flash_adj);
}
#endif
led_classdev_unregister(&this_fl_str->fl_lcdev);
flashlight_free_gpio(flashlight, this_fl_str);
kfree(this_fl_str);
return 0;
}