Change in coreboot[master]: mb/google/trogdor: mipi panel support for mrbland

[zanxi chen (Code Review)]

zanxi chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/57336 )

Change subject: mb/google/trogdor: mipi panel support for mrbland
......................................................................

mb/google/trogdor: mipi panel support for mrbland

Add mipi panel support for mrbland
- setup gpio and modify LCD sequence.
- use the following panel for mrbland:
  AUO B101UAN08.3
  BOE TV101WUM-N53
- use panel_id to distinguish which mipi panel to use.

BUG=b:195516474
BRANCH=none
TEST=builds mrbland image and working properly

Change-Id: Ib7cd2da429b114bf6bad5af312044a0f01319b46
Signed-off-by: Zanxi Chen 
---
M src/mainboard/google/trogdor/Kconfig
M src/mainboard/google/trogdor/board.h
M src/mainboard/google/trogdor/chromeos.c
M src/mainboard/google/trogdor/mainboard.c
4 files changed, 50 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/36/57336/1

diff --git a/src/mainboard/google/trogdor/Kconfig b/src/mainboard/google/trogdor/Kconfig
index 164c05f..88e72dc 100644
--- a/src/mainboard/google/trogdor/Kconfig
+++ b/src/mainboard/google/trogdor/Kconfig
@@ -14,8 +14,10 @@

config TROGDOR_HAS_MIPI_PANEL
    bool
+	default y if BOARD_GOOGLE_MRBLAND
+	select MIPI_PANEL_AUO_B101UAN08_3 if BOARD_GOOGLE_MRBLAND
+	select MIPI_PANEL_BOE_TV101WUM_N53 if BOARD_GOOGLE_MRBLAND
    default n
-	select MIPI_PANEL_VIS_RM69299

config TROGDOR_HAS_FINGERPRINT
    bool
diff --git a/src/mainboard/google/trogdor/board.h b/src/mainboard/google/trogdor/board.h
index 79dafc0..663c793 100644
--- a/src/mainboard/google/trogdor/board.h
+++ b/src/mainboard/google/trogdor/board.h
@@ -15,13 +15,18 @@
 #define GPIO_AMP_ENABLE	GPIO(23)

/* Display specific GPIOS */
-#define GPIO_BACKLIGHT_ENABLE  GPIO(12)
+#define GPIO_BACKLIGHT_ENABLE  ((CONFIG(BOARD_GOOGLE_MRBLAND)) ? \
+								 GPIO(85) : GPIO(12))
 #define GPIO_EDP_BRIDGE_ENABLE (CONFIG(TROGDOR_REV0) ? GPIO(14) : GPIO(104))
 #define GPIO_EN_PP3300_DX_EDP  (CONFIG(TROGDOR_REV0) ? GPIO(106) : \
    (CONFIG(BOARD_GOOGLE_TROGDOR) && board_id() == 1 ? GPIO(30) : \
    (CONFIG(BOARD_GOOGLE_COACHZ) && board_id() == 0 ? GPIO(52) : \
    (CONFIG(BOARD_GOOGLE_LAZOR) || CONFIG(BOARD_GOOGLE_POMPOM) ? GPIO(30) : \
    GPIO(67)))))
+#define GPIO_MIPI_1V8_ENABLE  GPIO(86)
+#define GPIO_AVDD_LCD_ENABLE  GPIO(88)
+#define GPIO_AVEE_LCD_ENABLE  GPIO(21)
+#define GPIO_VDD_RESET_1V8    GPIO(87)

/* Fingerprint-specific GPIOs. Only for fingerprint-enabled devices (e.g. CoachZ). */
 #if CONFIG(TROGDOR_HAS_FINGERPRINT)
diff --git a/src/mainboard/google/trogdor/chromeos.c b/src/mainboard/google/trogdor/chromeos.c
index c218388..051480c 100644
--- a/src/mainboard/google/trogdor/chromeos.c
+++ b/src/mainboard/google/trogdor/chromeos.c
@@ -17,6 +17,13 @@
    gpio_output(GPIO_EN_PP3300_DX_EDP, 0);
    gpio_output(GPIO_EDP_BRIDGE_ENABLE, 0);

+	if (CONFIG(TROGDOR_HAS_MIPI_PANEL)) {
+		gpio_output(GPIO_MIPI_1V8_ENABLE, 0);
+		gpio_output(GPIO_AVDD_LCD_ENABLE, 0);
+		gpio_output(GPIO_VDD_RESET_1V8, 0);
+		gpio_output(GPIO_AVEE_LCD_ENABLE, 0);
+	}
+
    if (CONFIG(TROGDOR_HAS_FINGERPRINT)) {
    	gpio_output(GPIO_FPMCU_BOOT0, 0);
    	gpio_output(GPIO_FP_RST_L, 0);
diff --git a/src/mainboard/google/trogdor/mainboard.c b/src/mainboard/google/trogdor/mainboard.c
index 4b395ba..ba8b6ab 100644
--- a/src/mainboard/google/trogdor/mainboard.c
+++ b/src/mainboard/google/trogdor/mainboard.c
@@ -78,9 +78,41 @@
    gpio_output(GPIO_EN_PP3300_DX_EDP, 1);
 }

+static void configure_mipi_panel(void)
+{
+	int panel_id = sku_id() >> 4;
+	gpio_output(GPIO_MIPI_1V8_ENABLE, 1);
+	mdelay(5);
+	gpio_output(GPIO_AVDD_LCD_ENABLE, 1);
+	mdelay(5);
+	gpio_output(GPIO_AVEE_LCD_ENABLE, 1);
+	mdelay(15);
+	gpio_output(GPIO_VDD_RESET_1V8, 1);
+	mdelay(15);
+	if (CONFIG(BOARD_GOOGLE_MRBLAND)&(panel_id)) {
+		gpio_output(GPIO_VDD_RESET_1V8, 0);
+		mdelay(5);
+		gpio_output(GPIO_VDD_RESET_1V8, 1);
+	}
+}
+
 static struct panel_serializable_data *get_mipi_panel(void)
 {
-	const char *cbfs_filename = "panel-VIS_RM69299";
+	const char *cbfs_filename;
+	int panel_id = sku_id() >> 4;
+
+	if (CONFIG(BOARD_GOOGLE_MRBLAND)) {
+		switch (panel_id) {
+		case 0:
+			cbfs_filename = "panel-AUO_B101UAN08_3";
+			break;
+		case 1:
+			cbfs_filename = "panel-BOE_TV101WUM_N53";
+			break;
+		default:
+			return NULL;
+		}
+	}

struct panel_serializable_data *panel = cbfs_map(cbfs_filename, NULL);
    if (!panel) {
@@ -126,6 +158,7 @@

if (CONFIG(TROGDOR_HAS_MIPI_PANEL)) {
    	panel = get_mipi_panel();
+		configure_mipi_panel();
    	if (!panel)
    		return;
    } else {