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power: supply: wilco_ec: Add long life charging mode

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This is a long life mode set in the factory for extended warranty
battery, the power charging rate is customized so that battery at
work last longer.

Presently switching to a different battery charging mode is through
EC PID 0x0710 to configure the battery firmware, this operation will
be blocked by EC with failure code 0x01 when PLL mode is already
in use.

Signed-off-by: Crag Wang <crag.wang@dell.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Crag Wang
2020-07-30 11:26:09 +08:00
committed by Sebastian Reichel
parent 707d678a5c
commit 46cbd0b057
4 changed files with 11 additions and 0 deletions
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Documentation/ABI/testing/sysfs-class-power-wilco
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@@ -14,6 +14,10 @@ Description:
Charging begins when level drops below
charge_control_start_threshold, and ceases when
level is above charge_control_end_threshold.
Long Life: Customized charge rate for last longer battery life.
On Wilco device this mode is pre-configured in the factory
through EC's private PID. Swiching to a different mode will
be denied by Wilco EC when Long Life mode is enabled.
What: /sys/class/power_supply/wilco-charger/charge_control_start_threshold
Date: April 2019