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authorHsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>2020-12-28 21:31:30 +0800
committerHung-Te Lin <hungte@chromium.org>2021-01-20 14:00:27 +0000
commit2fc597674039e53c3396ff82f3f26e9d2d2e656f (patch)
tree7f5243dbb7f28122db8b144862c6dc4f76fe8dd8 /Documentation/superio/nuvoton/npcd378.md
parent8572e33e5c44b14a184c9e0024df283595077386 (diff)
soc/mediatek/mt8192: pmic: unlock key protection before initial setting
We need to write some special values to key protection registers before applying init_setting table and lp_setting table to PMIC. Otherwise, those settings won't take effect. After applying init_setting table and lp_setting table, we lock the settings by writing zero to key protection registers. Reference datasheet: MT6359_PMIC_Data_Sheet_V1.5.docx, RH-D-2018-0205. BUG=b:172636735 BRANCH=none TEST=boot asurada correctly Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com> Change-Id: I593d4e02bf0b62ac297957caf4ae1c1837f1f38d Reviewed-on: https://review.coreboot.org/c/coreboot/+/48954 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
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