summaryrefslogtreecommitdiff
path: root/src/mainboard/google/kukui
diff options
context:
space:
mode:
authorHung-Te Lin <hungte@chromium.org>2019-11-12 15:04:26 +0800
committerPatrick Georgi <pgeorgi@google.com>2020-01-14 18:24:58 +0000
commit8eef3bf3ca27e8a79862422fe9ee0c505b0567cc (patch)
treef99760faff6730069b6ce0d0ccf2af8a9bafd22b /src/mainboard/google/kukui
parent40d816e964be09dd67ba06fe60eeea003b4fdc53 (diff)
downloadcoreboot-8eef3bf3ca27e8a79862422fe9ee0c505b0567cc.tar.xz
mb/google/kukui: Support panels using ANX7625
For Kukui followers using ANX7625 eDP bridge to access panel. BUG=b:140132295 TEST=make # board = kukui Change-Id: I7dc9c68d076fd0ba4e963cde9414d25c17b332cb Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/mainboard/google/kukui')
-rw-r--r--src/mainboard/google/kukui/Kconfig1
-rw-r--r--src/mainboard/google/kukui/Makefile.inc2
-rw-r--r--src/mainboard/google/kukui/panel_anx7625.c79
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;
+}