Caveh Jalali uploaded patch set #2 to this change.

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mb/google/volteer: Define stop_gpio for goodix touch screen

This applies to the goodix touch screen on both the volteer and
volteer2 variants: Define GPP_E3 as the stop_gpio for the touch screen
"Report_Switch" signal. Goodix defines a 1ms (minimum) delay after
stop off. In addition, no longer drive this GPIO high by default as it
is now controlled by the kernel through ACPI.

BUG=b:153705232
TEST=touch screen still functional on volteer; confirmed timings with
	scope (VDD, RESET, REPORT_SWITCH)

Change-Id: I3ead9cf79812d08c4917be4585ed273050465a9b
Signed-off-by: Caveh Jalali <caveh@chromium.org>
---
M src/mainboard/google/volteer/variants/volteer/gpio.c
M src/mainboard/google/volteer/variants/volteer/overridetree.cb
M src/mainboard/google/volteer/variants/volteer2/gpio.c
M src/mainboard/google/volteer/variants/volteer2/overridetree.cb
4 files changed, 14 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/44356/2

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