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Yidi Lin dfd5ccee75 mb/google/asurada: Implement enable_regulator and regulator_is_enabled 
SD Card driver needs to access two regulators - MT6360_LDO5 and
MT6360_LDO3. These two regulators are disabled by default.

Two APIs are implemented:
- mainboard_enable_regulator: Configure the regulator as enabled/disabled.
- mainboard_regulator_is_enabled: Query if the regulator is enabled.

BUG=b:168863056,b:147789962
BRANCH=none
TEST=emerge-asurada coreboot

Change-Id: I391f908fcb33ffdcccc53063644482eabc863ac4
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46687
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-11-18 06:13:26 +00:00
..
common mb/google/asurada: Implement enable_regulator and regulator_is_enabled 2020-11-18 06:13:26 +00:00
mt8173 soc/mediatek: Add function to raise the CPU frequency of MT8192 2020-10-08 11:58:42 +00:00
mt8183 soc/mediatek: Add function to raise the CPU frequency of MT8192 2020-10-08 11:58:42 +00:00
mt8192 mb/google/asurada: Implement board-specific regulator controls 2020-11-18 06:13:03 +00:00
Kconfig