src/mainboard/google/corsola/panel_anx7625.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <delay.h>
   5 #include <drivers/analogix/anx7625/anx7625.h>
   6 #include <edid.h>
   7 #include <gpio.h>
   8 #include <soc/i2c.h>
   9
  10 #include "gpio.h"
  11 #include "panel.h"
  12
  13 static void bridge_anx7625_power_on(void)
  14 {
  15         /* Turn on bridge */
  16         gpio_output(GPIO_EDPBRDG_RST_L, 0);
  17         gpio_output(GPIO_EN_PP1000_EDPBRDG, 1);
  18         gpio_output(GPIO_EN_PP1800_EDPBRDG, 1);
  19         gpio_output(GPIO_EN_PP3300_EDPBRDG, 1);
  20         mdelay(14);
  21         gpio_output(GPIO_EDPBRDG_PWREN, 1);
  22         mdelay(80);
  23         gpio_output(GPIO_EDPBRDG_RST_L, 1);
  24 }
  25
  26 static int bridge_anx7625_get_edid(struct edid *edid)
  27 {
  28         if (anx7625_init(BRIDGE_I2C) < 0) {
  29                 printk(BIOS_ERR, "%s: Can't init ANX7625 bridge\n", __func__);
  30                 return -1;
  31         }
  32         if (anx7625_dp_get_edid(BRIDGE_I2C, edid) < 0) {
  33                 printk(BIOS_ERR, "%s: Can't get panel's edid\n", __func__);
  34                 return -1;
  35         }
  36         return 0;
  37 }
  38
  39 static int bridge_anx7625_post_power_on(const struct edid *edid)
  40 {
  41         return anx7625_dp_start(BRIDGE_I2C, edid);
  42 }
  43
  44 static void panel_power_on(void)
  45 {
  46         /* Turn on the panel */
  47         gpio_output(GPIO_EN_PP3300_DISP_X, 1);
  48         bridge_anx7625_power_on();
  49 }
  50
  51 static struct panel_description anx7625_bridge = {
  52         .configure_backlight = backlight_control,
  53         .power_on = panel_power_on,
  54         .get_edid = bridge_anx7625_get_edid,
  55         .post_power_on = bridge_anx7625_post_power_on,
  56         .disp_path = DISP_PATH_MIPI,
  57         .orientation = LB_FB_ORIENTATION_NORMAL,
  58 };
  59
  60 struct panel_description *get_anx7625_description(void)
  61 {
  62         mtk_i2c_bus_init(BRIDGE_I2C, I2C_SPEED_FAST);
  63         return &anx7625_bridge;
  64 }