From 6a0e47019733890307d93329de79fc58f71ced77 Mon Sep 17 00:00:00 2001
From: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Date: Tue, 19 Jul 2022 07:32:43 +0800
Subject: [PATCH] mb/google/brya/var/agah: Adjust I2C speed

Adjust I2C speed for codec, TPM, touchpad.

BUG=b:237691531
TEST=Built and verified adjusted I2C speed < 400KHz

Change-Id: I203d137d61019235ddf38ef74607427db2a7e975
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65957
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
---
 src/mainboard/google/brya/variants/agah/overridetree.cb | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/mainboard/google/brya/variants/agah/overridetree.cb b/src/mainboard/google/brya/variants/agah/overridetree.cb
index a50a9d4cb8..0f50f96712 100644
--- a/src/mainboard/google/brya/variants/agah/overridetree.cb
+++ b/src/mainboard/google/brya/variants/agah/overridetree.cb
@@ -14,6 +14,9 @@ chip soc/intel/alderlake
 	register "common_soc_config" = "{
 		.i2c[0] = {
 			.speed = I2C_SPEED_FAST,
+			.rise_time_ns = 650,
+			.fall_time_ns = 400,
+			.data_hold_time_ns = 50,
 		},
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,
@@ -24,9 +27,15 @@ chip soc/intel/alderlake
 		.i2c[3] = {
 			.early_init = 1,
 			.speed = I2C_SPEED_FAST,
+			.rise_time_ns = 600,
+			.fall_time_ns = 400,
+			.data_hold_time_ns = 50,
 		},
 		.i2c[5] = {
 			.speed = I2C_SPEED_FAST,
+			.rise_time_ns = 650,
+			.fall_time_ns = 400,
+			.data_hold_time_ns = 50,
 		},
 	}"