From 19651a20e2fec2620f5614c3e7a197e725d60417 Mon Sep 17 00:00:00 2001 From: Lucas Chen Date: Thu, 18 Oct 2018 11:49:27 +0800 Subject: google/grunt/aleena: Update H1/TP/TS i2c timings After adjustment on aleena EVT Audio: 390.0 KHz H1: 390.0 KHz TP: 399.8 KHz TS: 399.8 kHz BUG=b:116306959 BRANCH=master TEST=emerge-grunt coreboot, scope measuring. Change-Id: I6f621508ce2dbb1b9dcdf529ac35afc80d485f53 Signed-off-by: Lucas Chen Reviewed-on: https://review.coreboot.org/29548 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- src/mainboard/google/kahlee/variants/aleena/devicetree.cb | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'src/mainboard/google/kahlee/variants/aleena') diff --git a/src/mainboard/google/kahlee/variants/aleena/devicetree.cb b/src/mainboard/google/kahlee/variants/aleena/devicetree.cb index 27a8e28cd5..784ea6f414 100644 --- a/src/mainboard/google/kahlee/variants/aleena/devicetree.cb +++ b/src/mainboard/google/kahlee/variants/aleena/devicetree.cb @@ -32,22 +32,22 @@ 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 = 26, + .fall_time_ns = 11, }" # Enable I2C3 for touchscreen at 400kHz register "i2c[3]" = "{ .speed = I2C_SPEED_FAST, - .rise_time_ns = 82, - .fall_time_ns = 67, + .rise_time_ns = 20, + .fall_time_ns = 19, }" register "i2c_scl_reset" = "GPIO_I2C0_SCL | GPIO_I2C1_SCL | \ -- cgit v1.2.3