static int adp5520_bl_probe(struct platform_device *pdev)
{
struct backlight_properties props;
struct backlight_device *bl;
struct adp5520_bl *data;
int ret = 0;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
data->master = pdev->dev.parent;
data->pdata = dev_get_platdata(&pdev->dev);
if (data->pdata == NULL) {
dev_err(&pdev->dev, "missing platform data\n");
return -ENODEV;
}
data->id = pdev->id;
data->current_brightness = 0;
mutex_init(&data->lock);
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = ADP5020_MAX_BRIGHTNESS;
bl = devm_backlight_device_register(&pdev->dev, pdev->name,
data->master, data, &adp5520_bl_ops,
&props);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
return PTR_ERR(bl);
}
bl->props.brightness = ADP5020_MAX_BRIGHTNESS;
if (data->pdata->en_ambl_sens)
ret = sysfs_create_group(&bl->dev.kobj,
&adp5520_bl_attr_group);
if (ret) {
dev_err(&pdev->dev, "failed to register sysfs\n");
return ret;
}
platform_set_drvdata(pdev, bl);
ret = adp5520_bl_setup(bl);
if (ret) {
dev_err(&pdev->dev, "failed to setup\n");
if (data->pdata->en_ambl_sens)
sysfs_remove_group(&bl->dev.kobj,
&adp5520_bl_attr_group);
return ret;
}
backlight_update_status(bl);
return 0;
}
static int __devinit adp5520_bl_probe(struct platform_device *pdev)
{
struct backlight_device *bl;
struct adp5520_bl *data;
int ret = 0;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL)
return -ENOMEM;
data->master = pdev->dev.parent;
data->pdata = pdev->dev.platform_data;
if (data->pdata == NULL) {
dev_err(&pdev->dev, "missing platform data\n");
kfree(data);
return -ENODEV;
}
data->id = pdev->id;
data->current_brightness = 0;
mutex_init(&data->lock);
bl = backlight_device_register(pdev->name, data->master,
data, &adp5520_bl_ops);
if (IS_ERR(bl)) {
dev_err(&pdev->dev, "failed to register backlight\n");
kfree(data);
return PTR_ERR(bl);
}
bl->props.max_brightness =
bl->props.brightness = ADP5020_MAX_BRIGHTNESS;
if (data->pdata->en_ambl_sens)
ret = sysfs_create_group(&bl->dev.kobj,
&adp5520_bl_attr_group);
if (ret) {
dev_err(&pdev->dev, "failed to register sysfs\n");
backlight_device_unregister(bl);
kfree(data);
}
platform_set_drvdata(pdev, bl);
ret |= adp5520_bl_setup(bl);
backlight_update_status(bl);
return ret;
}