From 4f176913c102599c59c98c0729cc198ad19adda4 Mon Sep 17 00:00:00 2001 From: Edward O'Callaghan Date: Fri, 17 Jan 2020 18:47:11 +1100 Subject: mainboard/puff: Tune ALC5682I rise_fall times on i2c Tunes the headphone amp i2c with measured signal shape. BUG=b:147192377 BRANCH=none TEST=builds and measured i2c frequency below 400khz Change-Id: I60f73bcf60ed140f595c953be371b982a63f7b95 Signed-off-by: Edward O'Callaghan Reviewed-on: https://review.coreboot.org/c/coreboot/+/38459 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh Reviewed-by: Edward O'Callaghan Reviewed-by: Daniel Kurtz Reviewed-by: Paul Menzel --- src/mainboard/google/hatch/variants/puff/overridetree.cb | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/mainboard') diff --git a/src/mainboard/google/hatch/variants/puff/overridetree.cb b/src/mainboard/google/hatch/variants/puff/overridetree.cb index bf9120adbc..3507e6d5eb 100644 --- a/src/mainboard/google/hatch/variants/puff/overridetree.cb +++ b/src/mainboard/google/hatch/variants/puff/overridetree.cb @@ -161,8 +161,8 @@ chip soc/intel/cannonlake }, .i2c[4] = { .speed = I2C_SPEED_FAST, - .rise_time_ns = 0, - .fall_time_ns = 0, + .rise_time_ns = 60, + .fall_time_ns = 60, }, }" -- cgit v1.2.3