[M] Change in coreboot[main]: mb/google/rauru: Add edp driver in mainboard

[Jarried Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Yidi Lin, Yu-Ping Wu.

Jarried Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/85951?usp=email )

Change subject: mb/google/rauru: Add edp driver in mainboard
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mb/google/rauru: Add edp driver in mainboard

Add edp driver
Adjust training flow and turn off phy power beforce phy
configurate because maby link training fail

TEST=check edp training pass and show log:
EQ training pass
BUG=b:343351631

Signed-off-by: Bincai Liu 
Change-Id: Iea610c97351beb94a49cc1044701a523b7c85a6e
---
M src/mainboard/google/rauru/Kconfig
M src/mainboard/google/rauru/Makefile.mk
M src/mainboard/google/rauru/chromeos.c
M src/mainboard/google/rauru/devicetree.cb
M src/mainboard/google/rauru/gpio.h
A src/mainboard/google/rauru/panel.c
A src/mainboard/google/rauru/panel_navi.c
7 files changed, 105 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/51/85951/1

diff --git a/src/mainboard/google/rauru/Kconfig b/src/mainboard/google/rauru/Kconfig
index 57e8c1b..a686838 100644
--- a/src/mainboard/google/rauru/Kconfig
+++ b/src/mainboard/google/rauru/Kconfig
@@ -33,6 +33,8 @@
    select TPM_GOOGLE_TI50 if VBOOT
    select COMMONLIB_STORAGE
    select COMMONLIB_STORAGE_MMC
+	select FW_CONFIG
+	select FW_CONFIG_SOURCE_CHROMEEC_CBI

config MAINBOARD_DIR
    string
diff --git a/src/mainboard/google/rauru/Makefile.mk b/src/mainboard/google/rauru/Makefile.mk
index 98f5bbd..095d104 100644
--- a/src/mainboard/google/rauru/Makefile.mk
+++ b/src/mainboard/google/rauru/Makefile.mk
@@ -10,4 +10,6 @@

ramstage-y += boardid.c
 ramstage-y += mainboard.c
+ramstage-y += panel.c
+ramstage-y += panel_navi.c
 ramstage-y += regulator.c
diff --git a/src/mainboard/google/rauru/chromeos.c b/src/mainboard/google/rauru/chromeos.c
index 6a34cb9..5bab019 100644
--- a/src/mainboard/google/rauru/chromeos.c
+++ b/src/mainboard/google/rauru/chromeos.c
@@ -56,6 +56,15 @@
    	lb_add_gpios(gpios, alc5645_gpios, ARRAY_SIZE(alc5645_gpios));
    else
    	lb_add_gpios(gpios, nau8318_gpios, ARRAY_SIZE(nau8318_gpios));
+
+	struct lb_gpio edp_pwm_gpios[] = {
+		{GPIO_BL_PWM_1V8.id, ACTIVE_HIGH, -1, "PWM control"},
+	};
+	lb_add_gpios(gpios, edp_pwm_gpios, ARRAY_SIZE(edp_pwm_gpios));
+	struct lb_gpio backlight_gpios[] = {
+		{GPIO_AP_EDP_BKLTEN.id, ACTIVE_HIGH, -1, "backlight enable"},
+	};
+	lb_add_gpios(gpios, backlight_gpios, ARRAY_SIZE(backlight_gpios));
 }

int cr50_plat_irq_status(void)
diff --git a/src/mainboard/google/rauru/devicetree.cb b/src/mainboard/google/rauru/devicetree.cb
index 1705dbe..0127103 100644
--- a/src/mainboard/google/rauru/devicetree.cb
+++ b/src/mainboard/google/rauru/devicetree.cb
@@ -8,6 +8,13 @@
    end
 end

+fw_config
+	field Panel 18 21
+		option DEFAULT 0
+		option OLED 1
+	end
+end
+
 chip soc/mediatek/mt8196
    device cpu_cluster 0 on end

diff --git a/src/mainboard/google/rauru/gpio.h b/src/mainboard/google/rauru/gpio.h
index c1c5b4b..f8ce6f5 100644
--- a/src/mainboard/google/rauru/gpio.h
+++ b/src/mainboard/google/rauru/gpio.h
@@ -15,6 +15,10 @@
 #define GPIO_FP_RST_1V8_S3_L	GPIO(EINT26)
 #define GPIO_AP_FP_FW_UP_STRAP	GPIO(EINT27)
 #define GPIO_EN_PWR_FP		GPIO(PERIPHERAL_EN3)
+#define GPIO_BL_PWM_1V8		GPIO(DISP_PWM)
+#define GPIO_AP_EDP_BKLTEN	GPIO(PERIPHERAL_EN4)
+#define GPIO_EN_PP3300_EDP_X	GPIO(PERIPHERAL_EN2)
+#define GPIO_EDP_HPD_1V8	GPIO(EINT13)

#define GPIO_I2SI4_BCK		GPIO(I2SIN1_BCK)
 #define GPIO_I2SI4_LRCK		GPIO(I2SIN1_LRCK)
diff --git a/src/mainboard/google/rauru/panel.c b/src/mainboard/google/rauru/panel.c
new file mode 100644
index 0000000..c35004c
--- /dev/null
+++ b/src/mainboard/google/rauru/panel.c
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+#include <boardid.h>
+#include <cbfs.h>
+#include <delay.h>
+#include <fw_config.h>
+#include <gpio.h>
+#include <soc/ddp.h>
+#include <soc/dsi.h>
+#include <soc/gpio_common.h>
+#include <soc/mtcmos.h>
+
+#include "gpio.h"
+
+struct panel_description *get_navi_description(void);
+
+/* Set up backlight control pins as output pin and power-off by default */
+static void configure_backlight(void)
+{
+	gpio_output(GPIO_AP_EDP_BKLTEN, 0);
+	gpio_output(GPIO_BL_PWM_1V8, 0);
+}
+
+static void power_on_panel(void)
+{
+	gpio_set_pull(GPIO_EDP_HPD_1V8, GPIO_PULL_ENABLE, GPIO_PULL_UP);
+	gpio_set_mode(GPIO_EDP_HPD_1V8, GPIO_FUNC(EINT13, EDP_TX_HPD));
+}
+
+static struct panel_description panel = {
+	.configure_backlight = configure_backlight,
+	.power_on = power_on_panel,
+	.disp_path = DISP_PATH_EDP,
+	.orientation = LB_FB_ORIENTATION_NORMAL,
+};
+
+struct panel_description *get_active_panel(void)
+{
+	if (fw_config_probe(FW_CONFIG(Panel, OLED))) {
+		return get_navi_description();
+	}
+	return &panel;
+}
diff --git a/src/mainboard/google/rauru/panel_navi.c b/src/mainboard/google/rauru/panel_navi.c
new file mode 100644
index 0000000..176d7b9
--- /dev/null
+++ b/src/mainboard/google/rauru/panel_navi.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+#include <boardid.h>
+#include <cbfs.h>
+#include <delay.h>
+#include <fw_config.h>
+#include <gpio.h>
+#include <soc/ddp.h>
+#include <soc/dsi.h>
+#include <soc/gpio_common.h>
+#include <soc/mtcmos.h>
+
+#include "gpio.h"
+
+struct panel_description *get_navi_description(void);
+
+static void power_on_oled_panel(void)
+{
+	/* Navi power sequence for oled panel. */
+	printk(BIOS_INFO, "%s\n", __func__);
+
+	gpio_output(GPIO_EN_PP3300_EDP_X, 1);
+	gpio_set_mode(GPIO_EDP_HPD_1V8, GPIO_FUNC(EINT13, EDP_TX_HPD));
+	mdelay(400);
+	gpio_output(GPIO_AP_EDP_BKLTEN, 1);
+	gpio_output(GPIO_BL_PWM_1V8, 1);
+}
+
+static struct panel_description oled_panel = {
+	.power_on = power_on_oled_panel,
+	.disp_path = DISP_PATH_EDP,
+	.orientation = LB_FB_ORIENTATION_NORMAL,
+};
+
+struct panel_description *get_navi_description(void)
+{
+	return &oled_panel;
+}