diff options
| -rw-r--r-- | src/mainboard/google/kukui/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/google/kukui/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/mainboard/google/kukui/panel_anx7625.c | 79 |
3 files changed, 82 insertions, 0 deletions
diff --git a/src/mainboard/google/kukui/Kconfig b/src/mainboard/google/kukui/Kconfig index 098ce494ab..6236ea9f8a 100644 --- a/src/mainboard/google/kukui/Kconfig +++ b/src/mainboard/google/kukui/Kconfig @@ -42,6 +42,7 @@ config BOARD_SPECIFIC_OPTIONS select MAINBOARD_FORCE_NATIVE_VGA_INIT select HAVE_LINEAR_FRAMEBUFFER select DRIVER_PARADE_PS8640 if BOARD_GOOGLE_JACUZZI + select DRIVER_ANALOGIX_ANX7625 if BOARD_GOOGLE_JUNIPER || BOARD_GOOGLE_DAMU || BOARD_GOOGLE_KAPPA select MT8183_DRAM_EMCP if BOARD_GOOGLE_KRANE config MAINBOARD_DIR diff --git a/src/mainboard/google/kukui/Makefile.inc b/src/mainboard/google/kukui/Makefile.inc index 2e8a79ad82..7839422f93 100644 --- a/src/mainboard/google/kukui/Makefile.inc +++ b/src/mainboard/google/kukui/Makefile.inc @@ -30,4 +30,6 @@ ramstage-$(CONFIG_BOARD_GOOGLE_KODAMA) += panel_kodama.c ramstage-$(CONFIG_BOARD_GOOGLE_KRANE) += panel_krane.c ramstage-$(CONFIG_BOARD_GOOGLE_KUKUI) += panel_kukui.c ramstage-$(CONFIG_DRIVER_PARADE_PS8640) += panel_ps8640.c +ramstage-$(CONFIG_DRIVER_ANALOGIX_ANX7625) += panel_anx7625.c + ramstage-y += reset.c diff --git a/src/mainboard/google/kukui/panel_anx7625.c b/src/mainboard/google/kukui/panel_anx7625.c new file mode 100644 index 0000000000..b6a57e4c14 --- /dev/null +++ b/src/mainboard/google/kukui/panel_anx7625.c @@ -0,0 +1,79 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2019 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <delay.h> +#include <drivers/analogix/anx7625/anx7625.h> +#include <edid.h> +#include <gpio.h> +#include <soc/i2c.h> +#include <string.h> + +#include "panel.h" + + +static void power_on_anx7625(void) +{ + gpio_output(GPIO_MIPIBRDG_RST_L_1V8, 0); + gpio_output(GPIO_PP1200_MIPIBRDG_EN, 1); + gpio_output(GPIO_VDDIO_MIPIBRDG_EN, 1); + gpio_output(GPIO_PP1800_LCM_EN, 1); + mdelay(2); + gpio_output(GPIO_MIPIBRDG_PWRDN_L_1V8, 1); + mdelay(10); + gpio_output(GPIO_MIPIBRDG_RST_L_1V8, 1); + gpio_output(GPIO_PP3300_LCM_EN, 1); +} + +static void dummy_power_on(void) +{ + /* The panel has been already powered on when getting panel information + * so we should do nothing here. + */ +} + +static struct panel_serializable_data anx7625_data = { + .orientation = LB_FB_ORIENTATION_NORMAL, + .init = { INIT_END_CMD }, +}; + +static struct panel_description anx7625_panel = { + .s = &anx7625_data, + .power_on = dummy_power_on, +}; + +struct panel_description *get_panel_description(int panel_id) +{ + /* To read panel EDID, we have to first power on anx7625. */ + power_on_anx7625(); + + u8 i2c_bus = 4; + mtk_i2c_bus_init(i2c_bus); + + if (anx7625_init(i2c_bus)) { + printk(BIOS_ERR, "Can't init ANX7625 bridge.\n"); + return NULL; + } + struct edid *edid = &anx7625_data.edid; + if (anx7625_dp_get_edid(i2c_bus, edid)) { + printk(BIOS_ERR, "Can't get panel's edid.\n"); + return NULL; + } + if (anx7625_dp_start(i2c_bus, edid) < 0) { + printk(BIOS_ERR, "Can't start display via ANX7625.\n"); + return NULL; + } + return &anx7625_panel; +} |