From 0cdd4125bea28bdf150fd13067cc8abce0410869 Mon Sep 17 00:00:00 2001
From: Luca Lai <luca.lai@lcfc.corp-partner.google.com>
Date: Mon, 2 Jun 2025 13:27:09 +0800
Subject: [PATCH] mb/trulo/var/pujjolo: Fix touchscreen function and boot up
 issue

1. Add serial_io_i2c_mode to fix can not boot up to OS issue.
2. Change level from low to high to fix parade touchscreen issue.

BUG=b:395763555
BRANCH=none
TEST=Build and boot to pujjolo. Verify functions work.

Change-Id: Ic0a02daa39f4d1d0287115ecab12f45201704227
Signed-off-by: Luca Lai <luca.lai@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87909
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 .../google/brya/variants/pujjolo/overridetree.cb   | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/mainboard/google/brya/variants/pujjolo/overridetree.cb b/src/mainboard/google/brya/variants/pujjolo/overridetree.cb
index 2f89d72859..7588a8bfb5 100644
--- a/src/mainboard/google/brya/variants/pujjolo/overridetree.cb
+++ b/src/mainboard/google/brya/variants/pujjolo/overridetree.cb
@@ -62,7 +62,8 @@ chip soc/intel/alderlake
 	#|                   | required to set up a BAR  |
 	#|                   | for TPM communication     |
 	#| I2C1              | Touchscreen               |
-	#| I2C2              | Sub-board(PSensor)/WCAM   |
+	#| I2C2              | Psensor                   |
+	#| I2C4              | Mipi camera               |
 	#| I2C5              | Trackpad                  |
 	#+-------------------+---------------------------+
 	register "common_soc_config" = "{
@@ -114,6 +115,15 @@ chip soc/intel/alderlake
 		},
 	}"
 
+	register "serial_io_i2c_mode" = "{
+		[PchSerialIoIndexI2C0] = PchSerialIoPci,
+		[PchSerialIoIndexI2C1] = PchSerialIoPci,
+		[PchSerialIoIndexI2C2] = PchSerialIoPci,
+		[PchSerialIoIndexI2C3] = PchSerialIoDisabled,
+		[PchSerialIoIndexI2C4] = PchSerialIoPci,
+		[PchSerialIoIndexI2C5] = PchSerialIoPci,
+	}"
+
 	register "serial_io_gspi_mode" = "{
 		[PchSerialIoIndexGSPI0] = PchSerialIoPci,
 		[PchSerialIoIndexGSPI1] = PchSerialIoPci,
@@ -166,7 +176,7 @@ chip soc/intel/alderlake
 			chip drivers/i2c/hid
 				register "generic.hid" = ""PARA3408""
 				register "generic.desc" = ""Parade Touchscreen""
-				register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E11_IRQ)"
+				register "generic.irq" = "ACPI_IRQ_LEVEL_HIGH(GPP_E11_IRQ)"
 				register "generic.detect" = "1"
 				register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
 				register "generic.reset_delay_ms" = "20"