tree 2d2783b633c73a13e4727e3226cd60bf86e014a2
parent a03b18012db5277f77b68b4c0d58e0672b943adc
author Tao Xia <xiatao5@huaqin.corp-partner.google.com> 1614410244 +0800
committer Patrick Georgi <pgeorgi@google.com> 1614586870 +0000

mb/google/dedede/var/sasukette: Configure I2C times for touchpad/codec/AMP

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:372 kHz
audio codec RT5682:386.8 kHz
speaker AMP L:387.5 kHz
speaker AMP R:388.9 kHz

BUG=b:181342340
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: I05d78c088190e349281a34b2aeed39ae8d867dc2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51112
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>