static void check_ddi_work(struct work_struct *work)
{
int ret;
unsigned char ddi_status[DDI_STATUS_LEN];
unsigned long ms_jiffies = msecs_to_jiffies(3000);
struct lcd_info *lcd =
container_of(work, struct lcd_info, check_ddi.work);
if (!lcd->connected) {
printk(KERN_INFO "%s, lcd is disconnected\n", __func__);
return;
}
/* check ldi status - should be ldi enabled.*/
if (lcd->ldi_enable != 1) {
printk(KERN_INFO "%s, ldi is disabled\n", __func__);
goto out;
}
if (lcd->current_bl < GAMMA_100CD) {
printk(KERN_INFO "%s, bl=%d\n", __func__, lcd->current_bl);
goto out;
}
ret = s6e8ax0_read_ddi_status_reg(lcd, ddi_status);
if (!ret) {
printk(KERN_INFO "%s, read failed\n", __func__);
set_dsim_hs_clk_toggle_count(0);
s3cfb_reinitialize_lcd();
return;
}
if (0x00 != ddi_status[0]) {/*0x9c*/
/*printk(KERN_INFO "%s,
normal ddi_status 0x%02x \n",__func__, ddi_status[0]);*/
if (lcd->oled_detection_count)
set_dsim_hs_clk_toggle_count(0);
lcd->oled_detection_count = 0;
ms_jiffies = msecs_to_jiffies(3000);
} else {
printk(KERN_INFO "%s, invalid ddi_status [0]=0x%02x\n",
__func__, ddi_status[0]);
if (lcd->oled_detection_count < 3) {
lcd->oled_detection_count++;
set_dsim_hs_clk_toggle_count(15);
ms_jiffies = msecs_to_jiffies(500);
} else {
set_dsim_hs_clk_toggle_count(0);
s3cfb_reinitialize_lcd();
return;
}
}
out:
schedule_delayed_work(&lcd->check_ddi, ms_jiffies);
return;
}
static void check_ddi_work(struct work_struct *work)
{
int ret;
static int reinit_lcd_cnt = 0;
unsigned char ddi_status[DDI_STATUS_LEN];
unsigned long ms_jiffies = msecs_to_jiffies(1000);
struct lcd_info *lcd =
container_of(work, struct lcd_info, check_ddi.work);
int oled_det_level = gpio_get_value(GPIO_OLED_DET);
if (!lcd->connected) {
printk(KERN_INFO "%s, lcd is disconnected\n", __func__);
return;
}
if (lpcharge) {
printk(KERN_INFO "%s, do not detect esd in lpcharge mode\n", __func__);
return;
}
mutex_lock(&s3cfb_lock);
// check ldi status - should be ldi enabled.
if (lcd->ldi_enable != 1) {
printk(KERN_INFO "%s, ldi is disabled\n", __func__);
goto out;
}
if (!oled_det_level) {
printk(KERN_INFO "%s, oled_det_pin detect esd\n", __func__);
s3cfb_esd_detected = true;
if (lcd->oled_detection_count < 10) {
lcd->oled_detection_count++;
set_dsim_hs_clk_toggle_count(15);
ms_jiffies = HZ/8;
} else {
set_dsim_hs_clk_toggle_count(0);
s3cfb_reinitialize_lcd();
reinit_lcd_cnt++;
ms_jiffies = msecs_to_jiffies(1000);
}
goto out;
}
if (oled_det_cnt++ < 3) goto out;
/* if esd has been detected once, read ddi status periodically */
if (!s3cfb_esd_detected) goto out;
/* Do not read ddi status with low brightness */
if (lcd->bl < LOW_GAMMA_LEVEL) goto out;
ret = s6e8ax0_read_ddi_status_reg(lcd, ddi_status);
if (!ret) {
printk(KERN_INFO "%s, read failed\n", __func__);
set_dsim_hs_clk_toggle_count(0);
s3cfb_reinitialize_lcd();
reinit_lcd_cnt++;
ms_jiffies = msecs_to_jiffies(1000);
}
if (0x9C != ddi_status[0]) {
printk(KERN_INFO "%s, invalid ddi_status 0x%x\n", __func__, ddi_status[0]);
if (lcd->oled_detection_count < 3) {
lcd->oled_detection_count++;
set_dsim_hs_clk_toggle_count(15);
ms_jiffies = msecs_to_jiffies(500);
} else {
set_dsim_hs_clk_toggle_count(0);
s3cfb_reinitialize_lcd();
reinit_lcd_cnt++;
ms_jiffies = msecs_to_jiffies(1000);
}
} else {
printk(KERN_INFO "%s, normal ddi_status 0x%x\n", __func__, ddi_status[0]);
if (lcd->oled_detection_count) {
set_dsim_hs_clk_toggle_count(0);
}
lcd->oled_detection_count = 0;
reinit_lcd_cnt = 0;
ms_jiffies = msecs_to_jiffies(1000);
}
oled_det_cnt = 0;
out:
if (reinit_lcd_cnt < MAX_REINIT_CNT) {
// printk(KERN_INFO "%s, schedule_delayed_work(%u msec)\n", __func__, jiffies_to_msecs(ms_jiffies));
schedule_delayed_work(&lcd->check_ddi, ms_jiffies);
}
mutex_unlock(&s3cfb_lock);
return;
}
