From 168f046d71ae8ec3ffc2c180a71ba2fde852f1e2 Mon Sep 17 00:00:00 2001 From: Casper Chang Date: Mon, 28 Jan 2019 21:29:01 +0800 Subject: mb/google/sarien/variants/arcada: Adjust TP/TS/H1 I2C CLK to meet spec After adjustment on Arcada EVT TouchScreen: 390 KHz TouchPad: 389 KHz H1: 389 KHz BUG=b:120584026, b:120584561 BRANCH=master TEST=emerge-sarien coreboot chromeos-bootimage measure by scope Signed-off-by: Casper Chang Change-Id: Ia6eb332e7a664b211a5025ad07e0d01bf7f8d5bb Reviewed-on: https://review.coreboot.org/c/31124 Tested-by: build bot (Jenkins) Reviewed-by: Lijian Zhao --- src/mainboard/google/sarien/variants/arcada/devicetree.cb | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'src/mainboard/google') diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb index 2b0408e217..f9d458208d 100644 --- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb +++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb @@ -77,17 +77,19 @@ chip soc/intel/cannonlake .chipset_lockdown = CHIPSET_LOCKDOWN_COREBOOT, .i2c[0] = { .speed = I2C_SPEED_FAST, + .rise_time_ns = 52, + .fall_time_ns = 110, }, .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 = 452, - .fall_time_ns = 110, + .rise_time_ns = 36, + .fall_time_ns = 99, }, }" -- cgit v1.2.3