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authorQinghong Zeng <zengqinghong@huaqin.corp-partner.google.com>2024-03-16 15:13:17 +0800
committerFelix Held <felix-coreboot@felixheld.de>2024-03-22 13:38:11 +0000
commitb417cb88df515efc60b2b016b8e138d438fd7f5d (patch)
tree20075ba58d10eb891056e167b6854c4c891fc142 /src/mainboard/lenovo/t520
parente8f9d18e8860575724e6b2ab134b4d1eba8a61f7 (diff)
mb/google/nissa/var/anraggar: Update touchscreen enable pin to GPP_C0
Assign GPP_C0 and enable only the touchscreen. Before modification, GPP_C0 supplies power to the touchscreen and sensor at the same time. Now the hardware circuit has been modified, GPP_C0 supplies power to the touchscreen alone. After the software is synchronously modified, when the device enters suspend(S0ix), GPP_C0 will not enable VDD, which can reduce the standby power consumption of the touchscreen when it is suspended(S0ix), which is about 2.1mW. BUG=b:304920262 TEST= touchscreen function workable Change-Id: Ia06209aa8303be4fc0669c5d6e5d7a06e8e9ab99 Signed-off-by: Qinghong Zeng <zengqinghong@huaqin.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81265 Reviewed-by: Eric Lai <ericllai@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Weimin Wu <wuweimin@huaqin.corp-partner.google.com>
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