| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <boardid.h> |
| #include <boot/coreboot_tables.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <gpio.h> |
| #include <soc/gpio_common.h> |
| #include <soc/i2c.h> |
| #include <soc/regulator.h> |
| #include <soc/tps65132s.h> |
| #include <soc/pmif.h> |
| #include <string.h> |
| |
| #include "display.h" |
| #include "gpio.h" |
| #include "panel.h" |
| |
| #define PMIC_TPS65132_I2C I2C3 |
| |
| static void configure_mipi_pwm_backlight(void) |
| { |
| gpio_output(GPIO_AP_DISP_BKLTEN, 0); |
| gpio_output(GPIO_MIPI_BL_PWM_1V8, 0); |
| } |
| |
| static void configure_edp_backlight(void) |
| { |
| gpio_output(GPIO_AP_DISP_BKLTEN, 0); |
| } |
| |
| static void power_on_mipi_boe_tv110c9m_ll0(void) |
| { |
| const struct tps65132s_reg_setting reg_settings[] = { |
| { PMIC_TPS65132_VPOS, 0x11, 0x1f }, |
| { PMIC_TPS65132_VNEG, 0x11, 0x1f }, |
| { PMIC_TPS65132_DLYX, 0x95, 0xff }, |
| { PMIC_TPS65132_ASSDD, 0x5b, 0xff }, |
| }; |
| const struct tps65132s_cfg cfg = { |
| .i2c_bus = PMIC_TPS65132_I2C, |
| .en = GPIO_EN_PPVAR_MIPI_DISP, |
| .sync = GPIO_EN_PPVAR_MIPI_DISP_150MA, |
| .settings = reg_settings, |
| .setting_counts = ARRAY_SIZE(reg_settings), |
| }; |
| |
| /* Enable VM18V */ |
| mainboard_enable_regulator(MTK_REGULATOR_VDD18, true); |
| if (tps65132s_setup(&cfg) != CB_SUCCESS) |
| printk(BIOS_ERR, "Failed to set up voltage regulator tps65132s\n"); |
| gpio_output(GPIO_DISP_RST_1V8_L, 0); |
| mdelay(1); |
| gpio_output(GPIO_DISP_RST_1V8_L, 1); |
| mdelay(1); |
| gpio_output(GPIO_DISP_RST_1V8_L, 0); |
| mdelay(1); |
| gpio_output(GPIO_DISP_RST_1V8_L, 1); |
| mdelay(6); |
| } |
| |
| static void power_on_edp_samsung_atana33xc20(void) |
| { |
| gpio_output(GPIO_EN_PP3300_EDP_DISP_X, 1); |
| gpio_set_pull(GPIO_EDP_HPD_1V8, GPIO_PULL_ENABLE, GPIO_PULL_UP); |
| gpio_set_mode(GPIO_EDP_HPD_1V8, 4); |
| } |
| |
| static struct panel_description panels[] = { |
| [1] = { |
| .name = "BOE_TV110C9M_LL0", |
| .power_on = power_on_mipi_boe_tv110c9m_ll0, |
| .configure_panel_backlight = configure_mipi_pwm_backlight, |
| .disp_path = DISP_PATH_MIPI, |
| .pwm_ctrl_gpio = true, |
| }, |
| [11] = { |
| .name = "SAMSUNG_ATANA33XC20", |
| .power_on = power_on_edp_samsung_atana33xc20, |
| .configure_panel_backlight = configure_edp_backlight, |
| .disp_path = DISP_PATH_EDP, |
| .pwm_ctrl_gpio = false, |
| }, |
| }; |
| |
| struct panel_description *get_panel_description(uint32_t panel_id) |
| { |
| /* Only PANEL_ID_LOW_CHANNEL value is valid for the reference board. */ |
| uint32_t id = panel_id & 0xF; |
| |
| if (id >= ARRAY_SIZE(panels)) |
| return NULL; |
| |
| return &panels[id]; |
| } |
| |
| void fill_lp_backlight_gpios(struct lb_gpios *gpios) |
| { |
| struct panel_description *panel = get_active_panel(); |
| if (!panel || panel->disp_path == DISP_PATH_NONE) |
| return; |
| |
| struct lb_gpio mipi_pwm_gpios[] = { |
| {GPIO_MIPI_BL_PWM_1V8.id, ACTIVE_HIGH, -1, "PWM control"}, |
| }; |
| |
| struct lb_gpio edp_pwm_gpios[] = { |
| {GPIO_EDP_BL_PWM_1V8.id, ACTIVE_HIGH, -1, "PWM control"}, |
| }; |
| |
| if (panel->pwm_ctrl_gpio) { |
| /* PWM control for typical eDP and MIPI panels */ |
| if (panel->disp_path == DISP_PATH_MIPI) |
| lb_add_gpios(gpios, mipi_pwm_gpios, ARRAY_SIZE(mipi_pwm_gpios)); |
| else |
| lb_add_gpios(gpios, edp_pwm_gpios, ARRAY_SIZE(edp_pwm_gpios)); |
| } |
| |
| struct lb_gpio backlight_gpios[] = { |
| {GPIO_AP_DISP_BKLTEN.id, ACTIVE_HIGH, -1, "backlight enable"}, |
| }; |
| |
| lb_add_gpios(gpios, backlight_gpios, ARRAY_SIZE(backlight_gpios)); |
| } |