static int lcdc_chimei_panel_on(struct platform_device *pdev)
{
int ret;
/* */
ret = gpio_request(lvds_pwr_down, "lvds_pwr_down");
if (ret == 0) {
/* */
gpio_direction_output(lvds_pwr_down, 1);
} else {
pr_err("%s: lvds_pwr_down=%d, gpio_request failed\n",
__func__, lvds_pwr_down);
}
msleep(200);
/* */
if (chimei_bl_level == 0)
chimei_bl_level = 1;
lcdc_chimei_set_backlight(chimei_bl_level);
msleep(10);
ret = gpio_request(led_en, "led_en");
if (ret == 0) {
/* */
gpio_direction_output(led_en, 1);
} else {
pr_err("%s: led_en=%d, gpio_request failed\n",
__func__, led_en);
}
return ret;
}
static int lcdc_chimei_panel_off(struct platform_device *pdev)
{
/* */
gpio_set_value_cansleep(led_en, 0);
gpio_free(led_en);
msleep(10);
lcdc_chimei_set_backlight(0);
msleep(200);
/* */
/* */
gpio_set_value_cansleep(lvds_pwr_down, 0);
gpio_free(lvds_pwr_down);
/* */
return 0;
}
static int lcdc_chimei_panel_off(struct platform_device *pdev)
{
/* pull low to disable */
gpio_set_value_cansleep(led_en, 0);
gpio_free(led_en);
msleep(10);
lcdc_chimei_set_backlight(0);
msleep(200);
/* power off led pwm power >= 200 ms */
/* pull low to shut down lvds */
gpio_set_value_cansleep(lvds_pwr_down, 0);
gpio_free(lvds_pwr_down);
/* panel power off here */
return 0;
}
static void lcdc_chimei_panel_backlight(struct msm_fb_data_type *mfd)
{
lcdc_chimei_set_backlight(mfd->bl_level);
}
static int lcdc_chimei_panel_off(struct platform_device *pdev)
{
unsigned int my_bl_level = 0;
printk(KERN_INFO "lcdc_chimei_panel_off---------------begin");
/* pull low to disable */
if (1 == display_panel_operate)
{
return 0;
}
display_panel_operate = 1;
if (0 == display_panel_on)
{
display_panel_operate = 0;
return 0;
}
display_panel_on = 0;
gpio_set_value_cansleep(led_en, 0);
gpio_free(led_en);
msleep(10);
if (my_hpd_state) {
my_bl_level = chimei_bl_level;
}
lcdc_chimei_set_backlight(0);
if (my_hpd_state) {
chimei_bl_level = my_bl_level;
}
msleep(10);
#if S7_HWID_L3H(S7, S7301, B)
gpio_set_value_cansleep(led_vccs_en, 0);
gpio_free(led_vccs_en);
#endif
/* power off led pwm power >= 200 ms */
msleep(200);
/* pull low to shut down lvds */
gpio_set_value_cansleep(lvds_pwr_down, 0);
gpio_free(lvds_pwr_down);
gpio_set_value_cansleep(lcd_cabc_en, 0);
gpio_free(lcd_cabc_en);
gpio_set_value_cansleep(LCDC_GPIO_COLOR_EN, 0);
gpio_free(LCDC_GPIO_COLOR_EN);
GpioColorRequestStatusFlags = 0;
/* panel power off here */
display_panel_power(0);
lcdc_gpio_config(0);
display_panel_operate = 0;
status_of_lcd = LCD_STATUS_OFF;
printk(KERN_INFO "lcdc_chimei_panel_off---------------end");
return 0;
}
static int lcdc_chimei_panel_on(struct platform_device *pdev)
{
int ret = 0;
#if 1
printk(KERN_INFO "lcdc_chimei_panel_on---------------begin");
if (1 == display_panel_operate)
{
return ret;
}
display_panel_operate = 1;
if (1 == display_panel_on)
{
display_panel_operate = 0;
return ret;
}
display_panel_on = 1;
/* panel powered on here */
display_panel_power(1);
ret = gpio_request(lvds_pwr_down, "lvds_pwr_down");
if (ret == 0) {
/* output, pull high to enable */
gpio_direction_output(lvds_pwr_down, 1);
} else {
pr_err("%s: lvds_pwr_down=%d, gpio_request failed\n",
__func__, lvds_pwr_down);
}
msleep(200);
/* power on led pwm power >= 200 ms */
#if S7_HWID_L3H(S7, S7301, B)
ret = gpio_request(led_vccs_en, "led_vccs_en");
if (ret == 0) {
/* output, pull high to enable */
gpio_direction_output(led_vccs_en, 1);
} else {
pr_err("%s: led_vccs_en=%d, gpio_request failed\n",
__func__, led_vccs_en);
}
#endif
msleep(10);
#if 0
lcdc_chimei_set_backlight(chimei_bl_level);
msleep(10);
#endif
ret = gpio_request(led_en, "led_en");
if (ret == 0) {
/* output, pull high */
gpio_direction_output(led_en, 1);
} else {
pr_err("%s: led_en=%d, gpio_request failed\n",
__func__, led_en);
}
/* LCD_CABC_EN */
ret = gpio_request(lcd_cabc_en, "lcd_cabc_en");
if (ret == 0)
{
/* output, pull low to disable */
gpio_direction_output(lcd_cabc_en, 0);
}
else
{
pr_err("%s: cabc_en=%d, gpio_request failed\n",
__func__, lcd_cabc_en);
}
ret = gpio_request(LCDC_GPIO_COLOR_EN, "lcdc_gpio_color_en");
if (ret == 0)
{
GpioColorRequestStatusFlags = 1;
gpio_direction_output(LCDC_GPIO_COLOR_EN, colorEn_state);
}
else
{
pr_err("%s: LCDC_GPIO_COLOR_EN=%d, gpio_request failed\n",
__func__, LCDC_GPIO_COLOR_EN);
}
lcdc_gpio_config(1);
msleep(20);
lcdc_chimei_set_backlight(chimei_bl_level);
printk(KERN_INFO "lcdc_chimei_panel_on---------------end");
#endif
status_of_lcd = LCD_STATUS_ON;
if (-EINVAL == ret)
{
display_panel_on = 0;
}
display_panel_operate = 0;
return ret;
}
