From ce7bc17149b3220cd4b2589a77cc92ff3719dc63 Mon Sep 17 00:00:00 2001 From: Chris Zhou Date: Thu, 30 Aug 2018 16:35:49 +0800 Subject: mb/google/kahlee/variants/liara: 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 Reviewed-on: https://review.coreboot.org/28397 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth Reviewed-by: Daniel Kurtz Reviewed-by: Raul Rangel --- src/mainboard/google/kahlee/variants/liara/devicetree.cb | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'src/mainboard/google/kahlee') diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb index b330ec5189..cf6dd5f3ff 100644 --- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb @@ -24,7 +24,7 @@ chip soc/amd/stoneyridge # 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 @@ chip soc/amd/stoneyridge 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 -- cgit v1.2.3