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authorFrank Chu <frank_chu@pegatron.corp-partner.google.com>2024-03-08 18:24:15 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-03-19 13:35:46 +0000
commit19453ec7a63421e7dfe24e8ffec66aba16e7d177 (patch)
tree0a177b989994c963629936453636c0dc3492b85a /src/mainboard/google/volteer/variants/drobit
parentb5a7bad724331195a397bb150804dbd2aa39ff2c (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>
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