1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* 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 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);
mtk_i2c_bus_init(PMIC_TPS65132_I2C, I2C_SPEED_FAST);
mdelay(10);
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 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,
},
};
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));
}
|
