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authorDuncan Laurie <dlaurie@chromium.org>2017-07-15 14:13:37 -0700
committerDuncan Laurie <dlaurie@chromium.org>2017-11-14 21:21:27 +0000
commit477942e2536ccadf77d4acfb6b91bb82e6771ad4 (patch)
tree568c3606d64fc045ab745625f616d837e6928b22 /Documentation/technotes
parent4cd93b3b7ff458a53634d71f36d0039b5d3c5520 (diff)
mb/google/eve: Remove ACPI control of touchscreen power
Change the touchscreen power control back to coreboot instead of under the ACPI _ON/_OFF methods, and switch the TOUCHSCREEN_STOP_L pin back to an output. This reverts previous changes to touchscreen GPIOs that were made to get back to a known good/working state. Having ACPI control these pins was resulting in a small percentage of touchscreen not being discovered at boot. This platform is not intending to use S0ix so the ACPI control is not needed. BUG=b:63718744 TEST=manual testing on Eve devices. Change-Id: I3fd64a435a053da1558ef736fe7baceee3c8f3a0 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Change-Id: Ia1e2ae7ca2a8b668c60fbda2aa50373e580646b2 Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/572692 Original-Reviewed-by: Duncan Laurie <dlaurie@google.com> Original-Commit-Queue: Duncan Laurie <dlaurie@google.com> Original-Tested-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/22445 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
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