static int s6e8ax0_probe(struct device *dev)
{
int ret = 0;
struct lcd_info *lcd;
#ifdef SMART_DIMMING
u8 mtp_data[LDI_MTP_LENGTH] = {0,};
#endif
lcd = kzalloc(sizeof(struct lcd_info), GFP_KERNEL);
if (!lcd) {
pr_err("failed to allocate for lcd\n");
ret = -ENOMEM;
goto err_alloc;
}
g_lcd = lcd;
lcd->ld = lcd_device_register("panel", dev, lcd, &s6e8ax0_lcd_ops);
if (IS_ERR(lcd->ld)) {
pr_err("failed to register lcd device\n");
ret = PTR_ERR(lcd->ld);
goto out_free_lcd;
}
lcd->bd = backlight_device_register("panel", dev, lcd, &s6e8ax0_backlight_ops, NULL);
if (IS_ERR(lcd->bd)) {
pr_err("failed to register backlight device\n");
ret = PTR_ERR(lcd->bd);
goto out_free_backlight;
}
lcd->dev = dev;
lcd->dsim = (struct dsim_global *)dev_get_drvdata(dev->parent);
lcd->bd->props.max_brightness = MAX_BRIGHTNESS;
lcd->bd->props.brightness = DEFAULT_BRIGHTNESS;
lcd->bl = DEFAULT_GAMMA_LEVEL;
lcd->current_bl = lcd->bl;
lcd->acl_enable = 0;
lcd->siop_enable = 0;
lcd->current_acl = 0;
lcd->power = FB_BLANK_UNBLANK;
lcd->ldi_enable = 1;
lcd->connected = 1;
lcd->auto_brightness = 0;
ret = device_create_file(&lcd->ld->dev, &dev_attr_power_reduce);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->ld->dev, &dev_attr_siop_enable);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->ld->dev, &dev_attr_lcd_type);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->ld->dev, &dev_attr_gamma_table);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->ld->dev, &dev_attr_read_acl);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->bd->dev, &dev_attr_auto_brightness);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
dev_set_drvdata(dev, lcd);
mutex_init(&lcd->lock);
mutex_init(&lcd->bl_lock);
s6e8ax0_read_id(lcd, lcd->id);
dev_info(&lcd->ld->dev, "ID: %x, %x, %x\n", lcd->id[0], lcd->id[1], lcd->id[2]);
dev_info(&lcd->ld->dev, "s6e8aa0 lcd panel driver has been probed.\n");
#ifdef SMART_DIMMING
s6e8aa0_check_id(lcd, lcd->id);
init_table_info(&lcd->smart);
ret = s6e8ax0_read_mtp(lcd, mtp_data);
if (!ret) {
printk(KERN_ERR "[LCD:ERROR] : %s read mtp failed\n", __func__);
/*return -EPERM;*/
}
calc_voltage_table(&lcd->smart, mtp_data);
if (lcd->support_elvss)
ret = init_elvss_table(lcd);
else {
lcd->elvss_table = (unsigned char **)ELVSS_TABLE;
ret = 0;
}
ret += init_gamma_table(lcd);
#ifdef CONFIG_AID_DIMMING
if (lcd->id[1] == 0x20 || lcd->id[1] == 0x40 || lcd->id[1] == 0x60) {
printk(KERN_INFO "AID Dimming is started. %d\n", lcd->id[1]);
lcd->support_aid = 1;
ret += init_aid_dimming_table(lcd);
}
#endif
if (ret) {
printk(KERN_ERR "gamma table generation is failed\n");
lcd->gamma_table = (unsigned char **)gamma22_table;
lcd->elvss_table = (unsigned char **)ELVSS_TABLE;
}
update_brightness(lcd, 1);
#endif
#if defined(GPIO_OLED_DET)
if (lcd->connected) {
INIT_DELAYED_WORK(&lcd->oled_detection, oled_detection_work);
lcd->irq = gpio_to_irq(GPIO_OLED_DET);
s3c_gpio_cfgpin(GPIO_OLED_DET, S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(GPIO_OLED_DET, S3C_GPIO_PULL_NONE);
if (request_irq(lcd->irq, oled_detection_int,
IRQF_TRIGGER_FALLING, "oled_detection", lcd))
pr_err("failed to reqeust irq. %d\n", lcd->irq);
}
#endif
lcd_early_suspend = s6e8ax0_early_suspend;
lcd_late_resume = s6e8ax0_late_resume;
return 0;
out_free_backlight:
lcd_device_unregister(lcd->ld);
kfree(lcd);
return ret;
out_free_lcd:
kfree(lcd);
return ret;
err_alloc:
return ret;
}
static int s6e8ax0_probe(struct device *dev)
{
int ret = 0;
struct lcd_info *lcd;
u8 mtp_data[LDI_MTP_LENGTH] = {0,};
lcd = kzalloc(sizeof(struct lcd_info), GFP_KERNEL);
if (!lcd) {
pr_err("failed to allocate for lcd\n");
ret = -ENOMEM;
goto err_alloc;
}
g_lcd = lcd;
lcd->ld = lcd_device_register("panel", dev, lcd, &s6e8ax0_lcd_ops);
if (IS_ERR(lcd->ld)) {
pr_err("failed to register lcd device\n");
ret = PTR_ERR(lcd->ld);
goto out_free_lcd;
}
lcd->bd = backlight_device_register("panel", dev, lcd, &s6e8ax0_backlight_ops, NULL);
if (IS_ERR(lcd->bd)) {
pr_err("failed to register backlight device\n");
ret = PTR_ERR(lcd->bd);
goto out_free_backlight;
}
lcd->dev = dev;
lcd->dsim = (struct dsim_global *)dev_get_drvdata(dev->parent);
lcd->bd->props.max_brightness = MAX_BRIGHTNESS;
lcd->bd->props.brightness = DEFAULT_BRIGHTNESS;
lcd->bl = DEFAULT_GAMMA_LEVEL;
lcd->current_bl = lcd->bl;
lcd->acl_enable = 0;
lcd->cur_acl = 0;
lcd->power = FB_BLANK_UNBLANK;
lcd->ldi_enable = 1;
lcd->connected = 1;
lcd->auto_brightness = 0;
ret = device_create_file(&lcd->ld->dev, &dev_attr_power_reduce);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->ld->dev, &dev_attr_lcd_type);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
ret = device_create_file(&lcd->bd->dev, &dev_attr_auto_brightness);
if (ret < 0)
dev_err(&lcd->ld->dev, "failed to add sysfs entries, %d\n", __LINE__);
dev_set_drvdata(dev, lcd);
mutex_init(&lcd->lock);
mutex_init(&lcd->bl_lock);
s6e8ax0_read_id(lcd, lcd->id);
dev_info(&lcd->ld->dev, "ID: %x, %x, %x\n", lcd->id[0], lcd->id[1], lcd->id[2]);
dev_info(&lcd->ld->dev, "lcd panel driver has been probed.\n");
return 0;
out_free_backlight:
lcd_device_unregister(lcd->ld);
kfree(lcd);
return ret;
out_free_lcd:
kfree(lcd);
return ret;
err_alloc:
return ret;
}