3 files changed, 51 insertions, 15 deletions

diff --git a/src/mainboard/google/geralt/display.c b/src/mainboard/google/geralt/display.c
index bbdd808fa1..243ed6d739 100644
--- a/src/mainboard/google/geralt/display.c
+++ b/src/mainboard/google/geralt/display.c
@@ -3,6 +3,7 @@
 #include <assert.h>
 #include <console/console.h>
 #include <delay.h>
+#include <device/i2c_simple.h>
 #include <edid.h>
 #include <framebuffer_info.h>
 #include <gpio.h>
@@ -10,11 +11,16 @@
 #include <soc/dptx.h>
 #include <soc/dsi.h>
 #include <soc/gpio_common.h>
+#include <soc/i2c.h>
 #include <soc/mtcmos.h>
 
 #include "display.h"
+#include "gpio.h"
 #include "panel.h"
 
+#define PMIC_TPS65132_I2C	I2C3
+#define PMIC_TPS65132_SLAVE	0x3E
+
 int configure_display(void)
 {
 	struct edid edid;
@@ -72,3 +78,44 @@ int configure_display(void)
 
 	return 0;
 }
+
+void tps65132s_program_eeprom(void)
+{
+	u8 value = 0;
+	u8 value1 = 0;
+
+	/* Initialize I2C3 for PMIC TPS65132 */
+	mtk_i2c_bus_init(PMIC_TPS65132_I2C, I2C_SPEED_FAST);
+	mdelay(10);
+
+	gpio_output(GPIO_EN_PPVAR_MIPI_DISP, 1);
+	gpio_output(GPIO_EN_PPVAR_MIPI_DISP_150MA, 1);
+	mdelay(10);
+
+	i2c_read_field(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x00, &value, 0xFF, 0);
+	i2c_read_field(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x01, &value1, 0xFF, 0);
+
+	if (value != 0x11 || value1 != 0x11) {
+		printk(BIOS_INFO, "Just set AVDD AVEE 5.7V to EEPROM Data in first time.\n");
+
+		/* Set AVDD = 5.7V */
+		if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x00, 0x11,
+					0x1F) < 0)
+			return;
+
+		/* Set AVEE = -5.7V */
+		if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x01, 0x11,
+					0x1F) < 0)
+			return;
+
+		/* Set EEPROM Data */
+		if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0xFF, 0x80,
+					0xFC) < 0)
+			return;
+		mdelay(50);
+	}
+
+	gpio_output(GPIO_EN_PPVAR_MIPI_DISP, 0);
+	gpio_output(GPIO_EN_PPVAR_MIPI_DISP_150MA, 0);
+	mdelay(5);
+}
diff --git a/src/mainboard/google/geralt/display.h b/src/mainboard/google/geralt/display.h
index 29153b303c..71e0e08392 100644
--- a/src/mainboard/google/geralt/display.h
+++ b/src/mainboard/google/geralt/display.h
@@ -4,5 +4,6 @@
 #define __MAINBOARD_GOOGLE_GERALT_DISPLAY_H__
 
 int configure_display(void);
+void tps65132s_program_eeprom(void);
 
 #endif
diff --git a/src/mainboard/google/geralt/panel_geralt.c b/src/mainboard/google/geralt/panel_geralt.c
index 2991360506..7828651397 100644
--- a/src/mainboard/google/geralt/panel_geralt.c
+++ b/src/mainboard/google/geralt/panel_geralt.c
@@ -11,11 +11,10 @@
 #include <soc/pmif.h>
 #include <string.h>
 
+#include "display.h"
 #include "gpio.h"
 #include "panel.h"
 
-#define PMIC_TPS65132_I2C	I2C3
-#define PMIC_TPS65132_SLAVE	0x3E
 
 static void configure_mipi_pwm_backlight(void)
 {
@@ -30,28 +29,17 @@ static void configure_edp_aux_backlight(void)
 
 static void power_on_mipi_boe_tv110c9m_ll0(void)
 {
+	tps65132s_program_eeprom();
+
 	/* Enable VM18V */
 	mainboard_enable_regulator(MTK_REGULATOR_VDD18, true);
 
-	/* Initialize I2C3 for PMIC TPS65132 */
-	mtk_i2c_bus_init(PMIC_TPS65132_I2C, I2C_SPEED_FAST);
-	mdelay(10);
-
 	gpio_output(GPIO_DISP_RST_1V8_L, 0);
 	mdelay(1);
 
 	gpio_output(GPIO_EN_PPVAR_MIPI_DISP, 1);
 	gpio_output(GPIO_EN_PPVAR_MIPI_DISP_150MA, 1);
 	mdelay(10);
-
-	/* Set AVDD = 5.7V */
-	if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x00, 0x11, 0x1F) < 0)
-		return;
-
-	/* Set AVEE = -5.7V */
-	if (panel_pmic_reg_mask(PMIC_TPS65132_I2C, PMIC_TPS65132_SLAVE, 0x01, 0x11, 0x1F) < 0)
-		return;
-
 	gpio_output(GPIO_DISP_RST_1V8_L, 1);
 	mdelay(1);
 	gpio_output(GPIO_DISP_RST_1V8_L, 0);