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authorFrank Chu <frank_chu@pegatron.corp-partner.google.com>2024-03-08 17:58:39 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-03-19 13:35:11 +0000
commitb5a7bad724331195a397bb150804dbd2aa39ff2c (patch)
tree3247b659a2413d0ef68baadb192b9f2f31fcfc5d /Documentation/util/ifdtool/index.md
parent194128a3af2c954cbdb496b6bada99208029bb73 (diff)
mb/google/nissa/var/glassway: Adjust touchscreen power sequencing
Adjust touchscreen power sequencing for eKTH5015M. The INX touch panel (eKTH5015M) contains a pull-up register which causes TCHSCR_REPORT_EN pull-up abnormally from Z1 power on.Because the t25 must be at least greater than 20ms, TCHSCR_REPORT_EN is initialized to GPO_L in the early stage (romstage) to meet the spec. BUG=b:328170008 BRANCH=firmware-nissa-15217.B TEST=Build and check I2C devices timing meet spec. [INFO ] input: Elan Touchscreen as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-10/i2c-ELAN0001:00/input/in4 Change-Id: I50f9c21ddee2bc9c1d313f63049cb587b4ae047a Signed-off-by: Frank Chu <frank_chu@pegatron.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81135 Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-by: Eric Lai <ericllai@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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