Change in coreboot[master]: google/grunt: Update Audio/H1/TP i2c timings

[Chris Zhou (Code Review)]

Chris Zhou has uploaded this change for review. ( https://review.coreboot.org/28397

Change subject: google/grunt: Update Audio/H1/TP i2c timings
......................................................................

google/grunt: Update Audio/H1/TP i2c timings

After adjustment on Liara Proto
Audio: 399.2 KHz
H1: 398.3 KHz
TP: 399.0 KHz

BUG=b:113319200
BRANCH=master
TEST=emerge-grunt coreboot chromeos-bootimage
     measure by scope

Change-Id: Ibba8c823ed8451a804cf731d49e7568a94ac7c6b
Signed-off-by: Chris Zhou 
---
M src/mainboard/google/kahlee/variants/liara/devicetree.cb
1 file changed, 4 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/97/28397/1

diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
index b330ec5..cf6dd5f 100644
--- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
@@ -24,7 +24,7 @@
    # Enable I2C0 for audio, USB3 hub at 400kHz
    register "i2c[0]" = "{
    	.speed = I2C_SPEED_FAST,
-		.rise_time_ns = 95,
+		.rise_time_ns = 85,
    	.fall_time_ns = 3,
    }"

@@ -32,15 +32,15 @@
    register "i2c[1]" = "{
    	.early_init = 1,
    	.speed = I2C_SPEED_FAST,
-		.rise_time_ns = 84,
+		.rise_time_ns = 45,
    	.fall_time_ns = 4,
    }"

# Enable I2C2 for trackpad, pen at 400kHz
    register "i2c[2]" = "{
    	.speed = I2C_SPEED_FAST,
-		.rise_time_ns = 117,
-		.fall_time_ns = 113,
+		.rise_time_ns = 48,
+		.fall_time_ns = 37,
    }"

# Enable I2C3 for touchscreen at 400kHz