• Nick Crews's avatar
    power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties · 813cab8f
    Nick Crews authored
    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: default avatarNick Crews <ncrews@chromium.org>
    Reviewed-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
    Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
    813cab8f
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