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| author | Nick Crews <ncrews@chromium.org> | 2019-04-18 10:43:13 -0600 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2019-05-02 01:11:32 +0200 |
| commit | 813cab8f3994250e136819ae48fbd1c95d980466 (patch) | |
| tree | 96e4922d1df5ceea63e9fbc914929595c58350a8 /drivers/power | |
| parent | ba6cc85084178e5bce50f6a00411e457c21c47df (diff) | |
| download | linux-813cab8f3994250e136819ae48fbd1c95d980466.tar.bz2 | |
power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
Add POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD
and POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties, to expand
the existing CHARGE_CONTROL_* properties. I am adding them in order
to support a new Chrome OS device, but these properties should be
general enough that they can be used on other devices.
When the charge_type is "Custom", the charge controller uses the
POWER_SUPPLY_PROP_CHARGE_CONTROL_* properties as configuration for some
other algorithm. For example, in the use case that I am supporting,
this means the battery begins charging when the percentage
level drops below POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
charging ceases when the percentage level goes above
POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD.
v5 changes:
- Add the other missing CHARGE_CONTROL_* properties documentation in
a separate commit
- Split up adding the charge types and adding the
POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD and
POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD properties into
two different commits.
v4 changes:
- Add documentation for the new properties, and add documentation for
the the previously missing charge_control_limit and
charge_control_limit_max properties.
Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/power_supply_sysfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c index 64dff5cfecc3..6104a3f03d46 100644 --- a/drivers/power/supply/power_supply_sysfs.c +++ b/drivers/power/supply/power_supply_sysfs.c @@ -274,6 +274,8 @@ static struct device_attribute power_supply_attrs[] = { POWER_SUPPLY_ATTR(constant_charge_voltage_max), POWER_SUPPLY_ATTR(charge_control_limit), POWER_SUPPLY_ATTR(charge_control_limit_max), + POWER_SUPPLY_ATTR(charge_control_start_threshold), + POWER_SUPPLY_ATTR(charge_control_end_threshold), POWER_SUPPLY_ATTR(input_current_limit), POWER_SUPPLY_ATTR(energy_full_design), POWER_SUPPLY_ATTR(energy_empty_design), |