mb/google/geralt: Add power-on sequence for BOE_TV110C9M_LL0

For Geralt, we use BOE_TV110C9M_LL0 as MIPI firmware display, so add the
power-on sequence for BOE_TV110C9M_LL0.

BUG=b:244208960
TEST=test firmware display pass for BOE_TV110C9M_LL0 on Geralt.

Change-Id: I3ef0b2e26d8cc0dc35c2985363ee4c3557dac8a9
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Signed-off-by: Liju-Clr Chen <liju-clr.chen@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72749
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

src/mainboard/google/geralt/gpio.h

@@ -18,6 +18,9 @@
 #define GPIO_EDP_HPD_1V8		GPIO(GPIO17)
 #define GPIO_EN_PP3300_EDP_DISP_X	GPIO(DSI1_LCM_RST)
 
+#define GPIO_DISP_RST_1V8_L		GPIO(DSI0_LCM_RST)
+#define GPIO_EN_PPVAR_MIPI_DISP		GPIO(GPIO03)
+#define GPIO_EN_PPVAR_MIPI_DISP_150MA	GPIO(GPIO04)
 #define GPIO_MIPI_BL_PWM_1V8		GPIO(DISP_PWM0)
 
 #define GPIO_SD_CD_ODL			GPIO(I2SIN_MCK)

src/mainboard/google/geralt/panel.c

@@ -3,6 +3,7 @@
 #include <boardid.h>
 #include <cbfs.h>
 #include <console/console.h>
+#include <device/i2c_simple.h>
 #include <edid.h>
 #include <gpio.h>
 #include <soc/gpio_common.h>
@@ -11,6 +12,21 @@
 #include "gpio.h"
 #include "panel.h"
 
+int panel_pmic_reg_mask(u32 bus, u8 chip, u8 addr, u8 val, u8 mask)
+{
+	u8 msg = 0;
+
+	if (i2c_read_field(bus, chip, addr, &msg, 0xFF, 0) < 0) {
+		printk(BIOS_ERR, "Failed to read i2c: addr(%u)\n", addr);
+		return -1;
+	}
+
+	msg &= ~mask;
+	msg |= val;
+
+	return i2c_write_field(bus, chip, addr, msg, 0xFF, 0);
+}
+
 static void get_mipi_cmd_from_cbfs(struct panel_description *desc)
 {
 	/*

src/mainboard/google/geralt/panel.h

@@ -17,6 +17,7 @@ struct panel_description {
 };
 
 void fill_lp_backlight_gpios(struct lb_gpios *gpios);
+int panel_pmic_reg_mask(u32 bus, u8 chip, u8 addr, u8 val, u8 mask);
 uint32_t panel_id(void);
 struct panel_description *get_panel_description(uint32_t panel_id);
 struct panel_description *get_active_panel(void);

src/mainboard/google/geralt/panel_geralt.c

@@ -2,13 +2,21 @@
 
 #include <boardid.h>
 #include <boot/coreboot_tables.h>
+#include <console/console.h>
+#include <delay.h>
 #include <gpio.h>
 #include <soc/gpio_common.h>
+#include <soc/i2c.h>
+#include <soc/regulator.h>
+#include <soc/pmif.h>
 #include <string.h>
 
 #include "gpio.h"
 #include "panel.h"
 
+#define PMIC_TPS65132_I2C	I2C3
+#define PMIC_TPS65132_SLAVE	0x3E
+
 static void configure_mipi_pwm_backlight(void)
 {
 	gpio_output(GPIO_AP_DISP_BKLTEN, 0);
@@ -22,7 +30,34 @@ static void configure_edp_aux_backlight(void)
 
 static void power_on_mipi_boe_tv110c9m_ll0(void)
 {
-	/* TODO: Add the poweron for BOE_TV110C9M_LL0 when we get BOE_TV110C9M_LL0 */
+	/* 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);
+	mdelay(1);
+	gpio_output(GPIO_DISP_RST_1V8_L, 1);
+	mdelay(6);
 }
 
 static void power_on_edp_mutto_b152731e1(void)

src/soc/mediatek/mt8188/Makefile.inc

@@ -49,6 +49,7 @@ ramstage-y += ../common/mt6359p.c mt6359p.c
 ramstage-y += ../common/mtcmos.c mtcmos.c
 ramstage-y += ../common/pmif.c ../common/pmif_clk.c pmif_clk.c
 ramstage-y += ../common/pmif_spi.c pmif_spi.c
+ramstage-y += ../common/pmif_spmi.c pmif_spmi.c
 ramstage-y += ../common/rtc.c ../common/rtc_osc_init.c ../common/rtc_mt6359p.c
 ramstage-y += soc.c
 ramstage-y += ../common/spm.c spm.c