static void lm3530_backlight_on(struct i2c_client *client, int level)
{
struct lm3530_device *dev = i2c_get_clientdata(client);
mutex_lock(&backlight_mtx);
if (backlight_status == BL_OFF) {
pr_info("%s, ++ lm3530_backlight_on \n",__func__);
lm3530_hw_reset(client);
lm3530_write_reg(dev->client, 0xA0, 0x00);
lm3530_write_reg(dev->client, 0x10,
(pwm_status == BL_OFF) ? dev->max_current & 0x1F
: dev->max_current );
}
if (first_boot) {
lm3530_write_reg(dev->client, 0x10,
(pwm_status == BL_OFF) ? dev->max_current & 0x1F
: dev->max_current );
first_boot = false;
}
lm3530_set_main_current_level(dev->client, level);
backlight_status = BL_ON;
mutex_unlock(&backlight_mtx);
}
static void lm3530_wakeup(struct lm3530_driver_data *drvdata)
{
// unsigned int lm3530_intensity;
if (!drvdata || drvdata->state == NORMAL_STATE)
return;
dprintk("operation mode is %s\n", (drvdata->mode == NORMAL_MODE) ? "normal_mode" : "alc_mode");
bl_config_gpio(1);
lm3530_hw_reset(drvdata);
if (drvdata->state == POWEROFF_STATE) {
lm3530_poweron(drvdata);
/* LGE_CHANGE
* Because the lm3530_go_opmode is called in the lm3530_poweron above, so I remove below function.
* If it is called two times when the previous state of AAT2862 is POWEROFF_STATE, it causes malfucction.
* 2010-07-31. [email protected]
*/
//lm3530_go_opmode(drvdata);
} else if (drvdata->state == SLEEP_STATE) {
if (drvdata->mode == NORMAL_MODE) {
lm3530_set_table(drvdata, drvdata->cmds.normal);
lm3530_write(drvdata->client, drvdata->reg_addrs.bl_m, drvdata->intensity);
drvdata->state = NORMAL_STATE;
} else if (drvdata->mode == ALC_MODE) {
/* LGE_CHANGE
* Remove ALC mode
* 2010-07-26. [email protected]
*/
//lm3530_set_table(drvdata, drvdata->cmds.alc);
//drvdata->state = NORMAL_STATE;
}
}
}
void lm3530_backlight_on(int level)
{
if (backlight_status == BL_OFF) {
msleep(17);
printk("%s, ++ lm3530_backlight_on \n",__func__);
lm3530_hw_reset();
lm3530_write_reg(main_lm3530_dev->client, 0xA0, 0x00);
/* reset 0 brightness */
lm3530_write_reg(main_lm3530_dev->client, 0x10,
main_lm3530_dev->max_current);
lm3530_write_reg(main_lm3530_dev->client, 0x30, 0x00);
/* fade in, out */
/* msleep(100); */
}
/* printk("%s received (prev backlight_status: %s)\n",
* __func__, backlight_status?"ON":"OFF");*/
lm3530_set_main_current_level(main_lm3530_dev->client, level);
backlight_status = BL_ON;
return;
}
static int lm3530_probe(struct i2c_client *i2c_dev, const struct i2c_device_id *id)
{
struct backlight_platform_data *pdata;
struct lm3530_device *dev;
struct backlight_device *bl_dev;
struct backlight_properties props;
int err;
printk(KERN_INFO"%s: i2c probe start\n", __func__);
pdata = i2c_dev->dev.platform_data;
lm3530_i2c_client = i2c_dev;
dev = kzalloc(sizeof(struct lm3530_device), GFP_KERNEL);
if(dev == NULL) {
dev_err(&i2c_dev->dev,"fail alloc for lm3530_device\n");
return 0;
}
main_lm3530_dev = dev;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MAX_LEVEL_BL;
props.type = BACKLIGHT_PLATFORM;
bl_dev = backlight_device_register(I2C_BL_NAME, &i2c_dev->dev, NULL, &lm3530_bl_ops, &props);
bl_dev->props.max_brightness = MAX_LEVEL_BL;
bl_dev->props.brightness = DEFAULT_LEVEL;
bl_dev->props.power = FB_BLANK_UNBLANK;
dev->bl_dev = bl_dev;
dev->client = i2c_dev;
dev->gpio = pdata->gpio;
dev->max_current = pdata->max_current;
dev->min_brightness = pdata->min_brightness;
dev->max_brightness = pdata->max_brightness;
i2c_set_clientdata(i2c_dev, dev);
if(dev->gpio && gpio_request(dev->gpio, "lm3530 reset") != 0) {
return -ENODEV;
}
mutex_init(&dev->bl_mutex);
err = device_create_file(&i2c_dev->dev, &dev_attr_lm3530_level);
err = device_create_file(&i2c_dev->dev, &dev_attr_lm3530_backlight_on_off);
#ifdef CONFIG_HAS_EARLYSUSPEND
lm3530_suspension.bl_lm3530_early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB;
lm3530_suspension.bl_lm3530_early_suspend.suspend = bl_early_suspend;
lm3530_suspension.bl_lm3530_early_suspend.resume = bl_early_resume;
register_early_suspend(&lm3530_suspension.bl_lm3530_early_suspend);
lm3530_suspension.suspended = 0;
#endif
lm3530_hw_reset();
return 0;
}
void lm3530_backlight_on(int level)
{
if (backlight_status == LM3530_BL_OFF) {
lm3530_hw_reset();
lm3530_write_reg(main_lm3530_dev->client, 0x10, 0xB5);
lm3530_write_reg(main_lm3530_dev->client, 0x30, 0x09);
}
backlight_status = LM3530_BL_ON;
return;
}
static void lm3530_device_init(struct lm3530_driver_data *drvdata)
{
/* LGE_CHANGE.
* Do not initialize aat28xx when system booting. The aat28xx is already initialized in oemsbl or LK !!
* 2010-08-16, [email protected]
*/
if (system_state == SYSTEM_BOOTING) {
lm3530_go_opmode(drvdata);
return;
}
lm3530_hw_reset(drvdata);
lm3530_go_opmode(drvdata);
}
void lm3530_backlight_on(int level)
{
if (lm3530_suspension.suspended)
return;
if(backlight_status == BL_OFF){
lm3530_hw_reset();
lm3530_write_reg(main_lm3530_dev->client, 0xA0, 0x00); //reset 0 brightness
lm3530_write_reg(main_lm3530_dev->client, 0x10, main_lm3530_dev->max_current);
#ifndef CONFIG_LGIT_VIDEO_CABC
lm3530_write_reg(main_lm3530_dev->client, 0x30, 0x2d); //fade in, out
#endif
}
lm3530_set_main_current_level(main_lm3530_dev->client, level);
backlight_status = BL_ON;
return;
}
