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authorIan Feng <ian_feng@compal.corp-partner.google.com>2023-04-28 13:32:16 +0800
committerMatt DeVillier <matt.devillier@amd.corp-partner.google.com>2023-05-12 14:52:16 +0000
commitb757a67ae1bc7e80fa6b16d77fafa9467be33a51 (patch)
treed86f933fd566f847300d16ef806e00a7ce2e4a43 /src/mainboard/google/brya/variants/zydron/overridetree.cb
parenta4298bc3f82f476ce82e3e948f6573f5e38dfb25 (diff)
mb/google/nissa/var/uldren: Fix Touch screen power sequence
Based on touchscreen product spec. For uldren 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). BUG=b:279989974 TEST=Build and boot to OS in uldren. Touch screen is workable. Change-Id: Ib1b1ce80aa1dd8c312e3663fc50c9e9f53cc07fe Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/74835 Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Diffstat (limited to 'src/mainboard/google/brya/variants/zydron/overridetree.cb')
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