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authorMatt DeVillier <matt.devillier@gmail.com>2023-04-27 09:55:51 -0500
committerFelix Held <felix-coreboot@felixheld.de>2023-08-09 13:40:15 +0000
commitd7d74f106d7460709ca6ac069a33cf03790db293 (patch)
treee0745c6a2dd445c48c0b730e3508d655cc3fcf18 /src/superio/nsc/pc87417
parent204ffcb98d5594983aed047ec2430e0b6aa515a0 (diff)
mb/google/brya: Implement touchscreen power sequencing
For brya variants with a touchscreen, drive the enable GPIO high starting in romstage while holding in reset, then disable the reset GPIO in ramstage (done in the baseboard). This will allow coreboot to detect the presence of i2c touchscreens during ACPI SSDT generation (implemented in a subsequent commit). BUG=b:121309055 TEST=tested with rest of patch train Change-Id: I8e56ac4834ce69de18bef2d34f5c361a7fda1aab Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74928 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src/superio/nsc/pc87417')
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