static void lm3533_backlight_on(struct i2c_client *client, int level)
{
struct lm3533_device *dev = i2c_get_clientdata(client);
dev_dbg(&client->dev, "backlight on...\n");
lm3533_hw_reset(dev);
lm3533_bl_write_reg(client, 0x10, 0x0); //HVLED 1 & 2 are controlled by Bank A
#if defined(ENABLE_PWM_SIGNAL)
lm3533_bl_write_reg(client, 0x14, 0x1); //
#else
lm3533_bl_write_reg(client, 0x14, 0x0); //PWM input is disabled for CABC
#endif
lm3533_bl_write_reg(client, 0x1A, 0x2); //Linear & Control Bank A is configured for register Current control
lm3533_bl_write_reg(client, 0x27, 0x1); //Control Bank A is enable
#if !defined(CONFIG_MACH_HD5_LGD)
lm3533_bl_write_reg(client, 0x2C, 0x0A); //
#else
lm3533_bl_write_reg(client, 0x2C, 0x0C); //Active High, OVP(24V), Boost Frequency(500 khz)
#endif
lm3533_set_main_current_level(client, level);
//
dev->bl_status = BL_ON;
return;
}
static int bl_set_intensity(struct backlight_device *bd)
{
struct i2c_client *client = to_i2c_client(bd->dev.parent);
lm3533_set_main_current_level(client, bd->props.brightness);
cur_main_lcd_level = bd->props.brightness;
return 0;
}
static void lm3533_lcd_backlight_set_maxcurrent(struct i2c_client *client,
int level)
{
struct lm3533_device *dev = i2c_get_clientdata(client);
if (level > LM3533_BL_MAX_MAXCURRENT)
level = LM3533_BL_MAX_MAXCURRENT;
if (level < LM3533_BL_MIN_MAXCURRENT)
level = LM3533_BL_MIN_MAXCURRENT;
dev->cur_maxcurrent = level;
lm3533_set_main_current_level(client, dev->saved_main_lcd_level);
}
static void leds_brightness_set(struct led_classdev *led_cdev, enum led_brightness value)
{
struct lm3533_device *drvdata = dev_get_drvdata(led_cdev->dev->parent);
if (!drvdata) {
printk("Error getting drvier data\n");
return;
}
mutex_lock(&lm3533dev->bl_mutex_saved);
drvdata->saved_main_lcd_level = value;
lm3533_set_main_current_level(drvdata->client, value);
mutex_unlock(&lm3533dev->bl_mutex_saved);
}
void lm3533_backlight_off(struct early_suspend * h)
#endif
{
int gpio = main_lm3533_dev->gpio;
if (backlight_status == BL_OFF)
return;
saved_main_lcd_level = cur_main_lcd_level;
lm3533_set_main_current_level(main_lm3533_dev->client, 0);
backlight_status = BL_OFF;
gpio_direction_output(gpio, 0);
msleep(6);
return;
}
void lm3533_backlight_on(int level)
{
#if defined(CONFIG_HAS_EARLYSUSPEND) && \
(defined(CONFIG_FB_MSM_MIPI_LGIT_CMD_WVGA_INVERSE_PT_PANEL) || \
defined(CONFIG_FB_MSM_MIPI_LGIT_VIDEO_WVGA_INVERSE_PT_PANEL))
if(is_early_suspended)
{
requested_in_early_suspend_lcd_level = level;
return;
}
#endif /* CONFIG_HAS_EARLYSUSPEND */
if (backlight_status == BL_OFF) {
lm3533_hw_reset();
lm3533_write_reg(main_lm3533_dev->client, 0x10, 0x0); /* HVLED 1 & 2 are controlled by Bank A */
/*
*/
#if defined(CONFIG_LGE_BACKLIGHT_CABC)
lm3533_write_reg(main_lm3533_dev->client, 0x14, 0x1); /* PWM input is enabled */
#else
lm3533_write_reg(main_lm3533_dev->client, 0x14, 0x0); /* PWM input is disabled */
#endif
lm3533_write_reg(main_lm3533_dev->client, 0x1A, 0x00); /* Linear & Control Bank A is configured for register Current control */
lm3533_write_reg(main_lm3533_dev->client, 0x1F, 0x13); /* Full-Scale Current (20.2mA) */
lm3533_write_reg(main_lm3533_dev->client, 0x27, 0x1); /* Control Bank A is enable */
#if defined(CONFIG_FB_MSM_MIPI_LGIT_CMD_WVGA_INVERSE_PT_PANEL) || \
defined(CONFIG_FB_MSM_MIPI_LGIT_VIDEO_WVGA_INVERSE_PT_PANEL)
lm3533_write_reg(main_lm3533_dev->client, 0x2C, 0xC); /* Active High, OVP(32V), Boost Frequency(500khz) */
lm3533_write_reg(main_lm3533_dev->client, 0x12, 0x9); /* START UP/SHUTDOWN TRANSITION */
lm3533_write_reg(main_lm3533_dev->client, 0x13, 0x9); /* RUN-TIME TRANSITION */
#else
lm3533_write_reg(main_lm3533_dev->client, 0x2C, 0xE); /*Active High, OVP(40V), Boost Frequency(500khz) */
#endif
}
lm3533_set_main_current_level(main_lm3533_dev->client, level);
backlight_status = BL_ON;
return;
}
static ssize_t lcd_backlight_store_level(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
int level;
struct i2c_client *client = to_i2c_client(dev);
if (!count)
return -EINVAL;
level = simple_strtoul(buf, NULL, 10);
if (level > MAX_BRIGHTNESS_lm3533)
level = MAX_BRIGHTNESS_lm3533;
lm3533_set_main_current_level(client, level);
cur_main_lcd_level = level;
return count;
}
static void lm3533_backlight_off(struct i2c_client *client)
{
struct lm3533_device *dev = i2c_get_clientdata(client);
int gpio = dev->hwen_gpio;
if (dev->bl_status == BL_OFF) {
dev_dbg(&client->dev, "Already turned off\n");
return;
}
dev_dbg(&client->dev, "backlight off...\n");
lm3533_set_main_current_level(client, 0);
gpio_set_value(gpio, 0);
dev->bl_status = BL_OFF;
mdelay(10);
}
static void lm3533_backlight_on(struct i2c_client *client, int level)
{
struct lm3533_device *dev = i2c_get_clientdata(client);
dev_dbg(&client->dev, "backlight on...\n");
lm3533_hw_reset(dev);
lm3533_bl_write_reg(client, 0x10, 0x0); //HVLED 1 & 2 are controlled by Bank A
lm3533_bl_write_reg(client, 0x14, 0x0); //PWM input is disabled for CABC
lm3533_bl_write_reg(client, 0x1A, 0x2); //Linear & Control Bank A is configured for register Current control
lm3533_bl_write_reg(client, 0x1F, dev->cur_maxcurrent); //Full-Scale Current (default 20.2mA)
lm3533_bl_write_reg(client, 0x27, 0x1); //Control Bank A is enable
lm3533_bl_write_reg(client, 0x2C, 0x0A); //Active High, OVP(24V), Boost Frequency(500 khz)
lm3533_set_main_current_level(client, level);
dev->bl_status = BL_ON;
return;
}
void lm3533_backlight_off(struct early_suspend * h)
#endif
{
int gpio = main_lm3533_dev->gpio;
pr_info("%s, on: %d\n", __func__, backlight_status);
mutex_lock(&backlight_mtx);
if (backlight_status == BL_OFF){
mutex_unlock(&backlight_mtx);
return;
}
saved_main_lcd_level = cur_main_lcd_level;
lm3533_set_main_current_level(main_lm3533_dev->client, 0);
backlight_status = BL_OFF;
gpio_direction_output(gpio, 0);
msleep(6);
mutex_unlock(&backlight_mtx);
return;
}
