Example #1
0
static int fusion3_mtp_panel_power(int enable)
{
	unsigned int lcd_id_det = 2;
	if (enable) {
		/* Set and enabale LDO2 1.2V for  VDDA_MIPI_DSI0/1_PLL */
		pm8921_ldo_set_voltage(LDO_2, LDO_VOLTAGE_1_2V);

		mi_display_gpio_init();

		/* Initial condition */
		pmic8921_gpio_set(PM8921_GPIO_PANEL_RESET, 0);
		pmic8921_gpio_set(PM8921_GPIO_LCD_DCDC_EN, 0);
		pm8921_ldo_clear_voltage(LDO_23);
		mdelay(8);

		/* Enable LVS7 */
		pm8921_low_voltage_switch_enable(lvs_7);
		pm8921_ldo_set_voltage(LDO_23, LDO_VOLTAGE_1_8V);
		mdelay(10);

		/* Enable VSP VSN */
		pmic8921_gpio_set(PM8921_GPIO_LCD_DCDC_EN, 1);
		mdelay(8);

		/* Reset */
		pmic8921_gpio_set(PM8921_GPIO_PANEL_RESET, 1);
		mdelay(3);

		lcd_id_det = pmic8921_gpio_get(PM8921_GPIO_PANEL_ID);
	} else {
		if (!target_cont_splash_screen()) {
			/* Reset down */
			pmic8921_gpio_set(PM8921_GPIO_PANEL_RESET, 0);

			/* Disable VSP VSN */
			pmic8921_gpio_set(PM8921_GPIO_LCD_DCDC_EN, 0);
			mdelay(8);

			/* Disable 1V8 */
			pm8921_ldo_clear_voltage(LDO_23);
		}
	}

	return 0;
}
Example #2
0
static int panel_id_detection(void)
{
	unsigned int lcd_id_det = 2;
	lcd_id_det = pmic8921_gpio_get(PM8921_GPIO_PANEL_ID);
	return lcd_id_det;
}