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| author | Frank Chu <frank_chu@pegatron.corp-partner.google.com> | 2024-03-08 18:24:15 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-03-19 13:35:46 +0000 |
| commit | 19453ec7a63421e7dfe24e8ffec66aba16e7d177 (patch) | |
| tree | 0a177b989994c963629936453636c0dc3492b85a /Documentation/mainboard | |
| parent | b5a7bad724331195a397bb150804dbd2aa39ff2c (diff) | |
mb/google/nissa/var/glassway: Tune I2C timings for 400 kHz
Update touchpad and touchscreen I2C timing.
- Data hold time: 300ns - 900ns
BUG=b:328724191
BRANCH=firmware-nissa-15217.B
TEST=Check wave form and met the spec.
I2C1 (touchscreen) Hold time from 83.58ns to 413.87ns
I2C5 (touchpad) Hold time from 95.93ns to 425.27ns
Change-Id: I65fb1298f9e96ab0b63aba436f6a319f21b38925
Signed-off-by: Frank Chu <frank_chu@pegatron.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81136
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Shawn Ku <shawnku@google.com>
Diffstat (limited to 'Documentation/mainboard')
0 files changed, 0 insertions, 0 deletions