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authorMatt DeVillier <matt.devillier@amd.corp-partner.google.com>2022-11-03 16:16:25 -0500
committerFelix Held <felix-coreboot@felixheld.de>2022-11-07 14:17:00 +0000
commitc848ff6eb7cca53a3afa89e37d05c6398cf5d2e5 (patch)
tree6ca873a4bbf8fa5b1c2f4418e1692eb6ede69f88 /util/nvramtool/compute_ip_checksum.c
parent65a0e5a92def54a505a2053b57e96d3b4dfe5289 (diff)
mb/google/guybrush: Implement touchscreen power sequencing
As all variants have a touchscreen option, in baseboard table set the enable GPIO high and hold in reset during romstage, then release reset in ramstage. This will allow the touchscreen to make use of the runtime I2C detect feature (enabled in a subsequent commit) so that an ACPI device entry is created only for the touchscreen actually present. Variants/SKUs which do not have a touchscreen (if any) can use the romstage/ramstage GPIO override tables to set the associated enable/ reset GPIOs to NC. This mirrors the change to skyrim in CB:67778. BUG=b:121309055 TEST=build/boot guybrush with rest of patch series Change-Id: I9b3356b8b3a0e68a307838a4b18775d25b32e548 Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69178 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
Diffstat (limited to 'util/nvramtool/compute_ip_checksum.c')
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