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/* SPDX-License-Identifier: GPL-2.0-only */
#include <boardid.h>
#include <cbfs.h>
#include <console/console.h>
#include <edid.h>
#include <gpio.h>
#include <soc/ddp.h>
#include <soc/dsi.h>
#include <soc/gpio_common.h>
#include <soc/mtcmos.h>
#include "display.h"
#include "gpio.h"
static void backlight_control(void)
{
/* Disable backlight before turning on bridge */
gpio_output(GPIO_AP_EDP_BKLTEN, 0);
gpio_output(GPIO_BL_PWM_1V8, 0);
gpio_output(GPIO_EN_PP3300_DISP_X, 1);
}
struct panel_description *get_panel_from_cbfs(struct panel_description *desc)
{
char cbfs_name[64];
static union {
u8 raw[4 * 1024];
struct panel_serializable_data s;
} buffer;
if (!desc->name)
return NULL;
snprintf(cbfs_name, sizeof(cbfs_name), "panel-%s", desc->name);
if (cbfs_load(cbfs_name, buffer.raw, sizeof(buffer)))
desc->s = &buffer.s;
else
printk(BIOS_ERR, "Missing %s in CBFS.\n", cbfs_name);
return desc->s ? desc : NULL;
}
static struct panel_description *get_active_panel(void)
{
if (CONFIG(BOARD_GOOGLE_KINGLER_COMMON))
if (CONFIG(BOARD_GOOGLE_STEELIX) && board_id() < 2)
return get_ps8640_description();
else
return get_anx7625_description();
else if (CONFIG(BOARD_GOOGLE_KRABBY_COMMON))
return get_ps8640_description();
else if (CONFIG(BOARD_GOOGLE_STARYU_COMMON))
return get_panel_description();
else
return NULL;
}
int configure_display(void)
{
/* Set up backlight control pins as output pin and power-off by default */
backlight_control();
const struct panel_description *panel = get_active_panel();
if (!panel)
return -1;
printk(BIOS_INFO, "%s: Starting display init\n", __func__);
if (panel->power_on)
panel->power_on();
struct edid edid = panel->s->edid;
const char *name = edid.ascii_string;
if (name[0] == '\0')
name = "unknown name";
printk(BIOS_INFO, "%s: '%s %s' %dx%d@%dHz\n", __func__,
edid.manufacturer_name, name, edid.mode.ha, edid.mode.va,
edid.mode.refresh);
mtcmos_display_power_on();
mtcmos_protect_display_bus();
edid_set_framebuffer_bits_per_pixel(&edid, 32, 0);
mtk_ddp_init();
u32 mipi_dsi_flags = (MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM |
MIPI_DSI_MODE_EOT_PACKET);
if (mtk_dsi_init(mipi_dsi_flags, MIPI_DSI_FMT_RGB888, 4, &edid,
panel->s->init) < 0) {
printk(BIOS_ERR, "%s: Failed in DSI init\n", __func__);
return -1;
}
if (panel->post_power_on && panel->post_power_on(BRIDGE_I2C, &edid) < 0) {
printk(BIOS_ERR, "%s: Failed to post power on bridge\n", __func__);
return -1;
}
mtk_ddp_mode_set(&edid);
struct fb_info *info = fb_new_framebuffer_info_from_edid(&edid,
(uintptr_t)0);
if (info)
fb_set_orientation(info, panel->orientation);
return 0;
}
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