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authorYidi Lin <yidilin@chromium.org>2024-05-17 15:35:54 +0800
committerYu-Ping Wu <yupingso@google.com>2024-10-19 04:37:10 +0000
commitd96cc8d2df38d1850e38da909cb7e00c2d6c50a4 (patch)
treeff7e2a271299b0d1a78fbe96ad8ed9319a21fd92 /src/ec/starlabs/merlin/ite.c
parentf789d41539a72d71bad97ce5e19566a05a952244 (diff)
mb/google/rauru: Configure the fingerprint pins
There is no powering-on control in the fingerprint kernel driver. The fingerprint team of ChromeOS suggests powering-on FP MCU in the FW. Follow trogdor to pull down FP_RST_1V8_S3_L, AP_FP_FW_UP_STRAP, EN_PWR_FP and pull up EN_PWR_FP in ramstage for power rail to be stable. BUG=b:340401582 TEST=measure waveform and the fingerprint works on ChromeOS Change-Id: I05600d90fdf922faeb778a36d8a08f68c1bb4125 Signed-off-by: Yidi Lin <yidilin@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/84692 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yidi Lin <yidilin@google.com>
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