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authorSeunghwan Kim <sh_.kim@samsung.corp-partner.google.com>2021-12-17 15:57:52 +0900
committerTim Wawrzynczak <twawrzynczak@chromium.org>2022-01-03 21:15:07 +0000
commit1106bcce0df6569a93a36a02326e1eb34b181068 (patch)
tree388be0758486fe96d43a1b80abfeff2e04f7f49c /src/mainboard/sifive
parent2a4858afed4c8618182a78a6de965d1cad6e8630 (diff)
mb/google/dedede/var/bugzzy: Initialize display signals on user mode
Bugzzy uses panel-built-in touch screen, it needs to set panel power and reset signal to high for touch screen to work. On user mode, coreboot doesn't initialize graphics since there is no screen display before OS. So we would add a WA to initialize required signals on user mode. It takes under 30 ms delay on booting time. BUG=b:205496327 BRANCH=dedede TEST=Verified touch screen worked with test coreboot and test touch screen 028D firmware Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com> Change-Id: Iaa4d16deb932f43ae1ab33ff5b4e74120ab670db Reviewed-on: https://review.coreboot.org/c/coreboot/+/60190 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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