From 1e7d69944d3c406bae4c31ac21e7967681f432a6 Mon Sep 17 00:00:00 2001
From: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Date: Wed, 16 Jan 2019 18:07:46 +0800
Subject: mb/google/sarien/variants/sarien: Adjust TP/TS/H1 I2C CLK to meet
 spec

After adjustment on Sarien EVT
TouchScreen: 380.7 KHz
TouchPad: 379.3 KHz
H1: 392.2 KHz

BUG=b:122657195
BRANCH=master
TEST=emerge-sarien coreboot chromeos-bootimage
     measure by scope

Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I0dd92b054d934b38a17898dc8ce9cc18bda1633f
Reviewed-on: https://review.coreboot.org/c/30949
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 src/mainboard/google/sarien/variants/sarien/devicetree.cb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
index 4334c45083..59f1f30c88 100644
--- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb
+++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb
@@ -81,17 +81,19 @@ chip soc/intel/cannonlake
 		.chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT,
 		.i2c[0] = {
 			.speed = I2C_SPEED_FAST,
+			.rise_time_ns = 190,
+			.fall_time_ns = 120,
 		},
 		.i2c[1] = {
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 176,
-			.fall_time_ns = 15,
+			.rise_time_ns = 52,
+			.fall_time_ns = 110,
 		},
 		.i2c[4] = {
 			.early_init = 1,
 			.speed = I2C_SPEED_FAST,
-			.rise_time_ns = 280,
-			.fall_time_ns = 90,
+			.rise_time_ns = 36,
+			.fall_time_ns = 99,
 		},
 	}"
 
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