Configure I2C high / low time in the device tree to ensure I2C
CLK runs accurately between 380 kHz and 400 kHz.
Measured I2C frequency just as below after tuning:
touchpad:390.4 kHz
BUG=b:192601250
BRANCH=dedede
TEST=Build and check after tuning I2C clock is between 380 kHz and 400 kHz
Signed-off-by: Tao Xia <xiatao5@huaqin.corp-partner.google.com>
Change-Id: Ibe1603a48a3e841b6a50aa0c703697ec615b2854
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56016
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
6c1bdc8939