[PATCHv3,00/14] Add DT support for generic ADC battery

Message

Sebastian Reichel March 17, 2023, 10:56 p.m. UTC

Hi,

This series cleans up the generic ADC battery driver and adds
devicetree support. The plan is to use the driver to add upstream
support for a handheld thermal camera.

Instead of reading and exposing the monitored battery data manually
I started the series with an addition to the power-supply core,
which allows automatic handling of the static battery information.
It simplifies the generic-adc-battery driver a lot and should also
be useful for other battery drivers.

Changes since PATCHv2:
 * collect more Reviewed-by (again skipped PATCH 1)
 * updated battery-info auto-exposure to only do it for TYPE_BATTERY
   power-supply devices.
 * Fix battery-info auto-exposure to avoid duplicated uevent variables
 * Added two more cleanup patches at the end of the series

Changes since PATCHv1:
 * collect Reviewed-by
   (I did not collect them for the auto-exposure because of the
   code changes)
 * always auto expose battery data (without opt-in)
 * update DT binding according to feedback
 * add temperature support
 * fix issues pointed out by the Intel build bot
  - move power_supply_battery_info_properties to power_supply_core.c
  - restore accidently removed EXPORT_SYMBOL for power_supply_get_property

-- Sebastian

Sebastian Reichel (14):
  dt-bindings: power: supply: adc-battery: add binding
  power: supply: core: auto-exposure of simple-battery data
  power: supply: generic-adc-battery: convert to managed resources
  power: supply: generic-adc-battery: fix unit scaling
  power: supply: generic-adc-battery: drop jitter delay support
  power: supply: generic-adc-battery: drop charge now support
  power: supply: generic-adc-battery: drop memory alloc error message
  power: supply: generic-adc-battery: use simple-battery API
  power: supply: generic-adc-battery: simplify read_channel logic
  power: supply: generic-adc-battery: add temperature support
  power: supply: generic-adc-battery: add DT support
  power: supply: generic-adc-battery: update copyright info
  power: supply: generic-adc-battery: improve error message
  power: supply: generic-adc-battery: style fixes

 .../bindings/power/supply/adc-battery.yaml    |  70 +++++
 drivers/power/supply/generic-adc-battery.c    | 245 +++++-------------
 drivers/power/supply/power_supply_core.c      | 179 +++++++++++--
 drivers/power/supply/power_supply_sysfs.c     |  23 +-
 include/linux/power/generic-adc-battery.h     |  23 --
 include/linux/power_supply.h                  |   8 +
 6 files changed, 325 insertions(+), 223 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/supply/adc-battery.yaml
 delete mode 100644 include/linux/power/generic-adc-battery.h