From da6170a22337af4cf227bdfb4e53fac21516d143 Mon Sep 17 00:00:00 2001 From: Peichao Wang Date: Thu, 28 Nov 2019 17:26:19 +0800 Subject: mb/google/hatch/akemi: Set touchpad data hold time more than 300ns According to SI team and vendor request, need to tune I2C bus 0 data hold time more than 300ns BUG=b:146163044 TEST=build firmware and measure I2C bus 0 data hold time Signed-off-by: Peichao Wang Change-Id: I75e33419cbaef746487de6ee8628d07cf08adaa9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/37322 Reviewed-by: Tim Wawrzynczak Reviewed-by: Philip Chen Tested-by: build bot (Jenkins) --- src/mainboard/google/hatch/variants/akemi/overridetree.cb | 1 + 1 file changed, 1 insertion(+) diff --git a/src/mainboard/google/hatch/variants/akemi/overridetree.cb b/src/mainboard/google/hatch/variants/akemi/overridetree.cb index 9b0f5f7b60..d236cb0c94 100644 --- a/src/mainboard/google/hatch/variants/akemi/overridetree.cb +++ b/src/mainboard/google/hatch/variants/akemi/overridetree.cb @@ -57,6 +57,7 @@ chip soc/intel/cannonlake .speed = I2C_SPEED_FAST, .rise_time_ns = 50, .fall_time_ns = 15, + .data_hold_time_ns = 400, }, .i2c[1] = { .speed = I2C_SPEED_FAST, -- cgit v1.2.3