cong yang has uploaded this change for review.

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mb/google/geralt: Increase vm18 ldo voltage for Ciri

Since the panel requires 1.8V or more, the current voltage measured
at mainboard side is 1.79V and at panel side is 1.74V. So increased
the circuit voltage by boosting voltage set in the PMIC.

BUG=b:322080023
TEST=Check ciri vm18 ldo voltage
BRANCH=None

Change-Id: I6d6193d45409f53c0b656890c44ddaef253c5e01
---
M src/mainboard/google/geralt/panel_ciri.c
M src/mainboard/google/geralt/regulator.c
2 files changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/80198/1

diff --git a/src/mainboard/google/geralt/panel_ciri.c b/src/mainboard/google/geralt/panel_ciri.c
index 3d01183..4d31711 100644
--- a/src/mainboard/google/geralt/panel_ciri.c
+++ b/src/mainboard/google/geralt/panel_ciri.c
@@ -2,6 +2,7 @@
 
 #include <console/console.h>
 #include <soc/i2c.h>
+#include <soc/regulator.h>
 
 #include "gpio.h"
 #include "panel.h"
@@ -23,6 +24,7 @@
 		.settings = reg_settings,
 		.setting_counts = ARRAY_SIZE(reg_settings),
 	};
+	mainboard_set_regulator_voltage(MTK_REGULATOR_VDD18, 1900000);
 	power_on_mipi_panel(&cfg);
 }
 
diff --git a/src/mainboard/google/geralt/regulator.c b/src/mainboard/google/geralt/regulator.c
index f3b4407..8f0d7cb 100644
--- a/src/mainboard/google/geralt/regulator.c
+++ b/src/mainboard/google/geralt/regulator.c
@@ -38,6 +38,8 @@
 
 	if (id == MT6359P_SIM1)
 		mt6359p_set_vsim1_voltage(voltage_uv);
+	else if (id == MT6359P_VM18)
+		mt6359p_set_vm18_voltage(voltage_uv);
 	else
 		mt6359p_buck_set_voltage(id, voltage_uv);
 }

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