linux/Documentation/ABI/testing/sysfs-class-power-wilco
Crag Wang 46cbd0b057 power: supply: wilco_ec: Add long life charging mode
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>
2020-07-31 14:33:56 +02:00

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What: /sys/class/power_supply/wilco-charger/charge_type
Date: April 2019
KernelVersion: 5.2
Description:
What charging algorithm to use:
Standard: Fully charges battery at a standard rate.
Adaptive: Battery settings adaptively optimized based on
typical battery usage pattern.
Fast: Battery charges over a shorter period.
Trickle: Extends battery lifespan, intended for users who
primarily use their Chromebook while connected to AC.
Custom: A low and high threshold percentage is specified.
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
KernelVersion: 5.2
Description:
Used when charge_type="Custom", as described above. Measured in
percentages. The valid range is [50, 95].
What: /sys/class/power_supply/wilco-charger/charge_control_end_threshold
Date: April 2019
KernelVersion: 5.2
Description:
Used when charge_type="Custom", as described above. Measured in
percentages. The valid range is [55, 100].