tree 248d8c072014e27e7c752c98406d24f223b4dcd3
parent 2fa96eb33eeefa745b2ac8639e3c9d48fe6778e0
author Tao Xia <xiatao5@huaqin.corp-partner.google.com> 1616055486 +0800
committer Patrick Georgi <pgeorgi@google.com> 1616947374 +0000

mb/google/dedede/var/storo: Configure I2C times for I2C devices

Configure I2C high / low time in device tree to ensure I2C
CLK runs accurately at I2C_SPEED_FAST (400 kHz).

Measured I2C frequency just as below after tuning:
touchpad:371.63 kHz
touchpanel:368.24 kHz
audio codec RT5682:369.13 kHz
speaker AMP L:366.21 kHz
speaker AMP R:365.8 kHz
P-sensor:368.34 kHz
MIPI Camera:363.35 kHz

BUG=b:181589325
BRANCH=dedede
TEST=Build and check after tuning I2C clock is under 400kHz

Signed-off-by: Tao Xia <xiatao5@huaqin.corp-partner.google.com>
Change-Id: I1a755a54540e106b41ac427f84989ed7e8037558
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51624
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>