[PATCH v8 0/5] Add Texas Instruments BQ25703A Charger

[Chris Morgan <macroalpha82@gmail.com>]

From: Chris Morgan <macromorgan@hotmail.com>

Add support for the Texas Instruments BQ25703A charger manager. The
device integrates a boost converter with the charger manager. This
series adds the device as an MFD with separate regulator and power
supply drivers. This allows us to manage a circular dependency with
a type-c port manager which depends on the regulator for usb-otg
but supplies power to the BQ25703A charger.

---
Changes since RFC
 - Corrected some minor issues with code and device-tree labels.
 - Replaced most of the manufacturer specific device-tree properties
   with monitored-battery properties.
Changes since V2
 - Added reference to power-supply.yaml and removed note for i2c
   address per recommendation from Sebastian.
 - Corrected documentation error for charger driver found by kernel
   test robot.
 - Corrected duplicate POWER_SUPPLY_USB_TYPE_PD entry and corrected
   ichg logic in power supply changed function.
 - Corrected missing linux/bitfield.h header in regulator driver found
   by kernel test robot.
Changes since V3
 - Changed name of regulator from usb_otg_vbus to just vbus to align
   with datasheet.
 - Additional cleanup of the device tree documentation.
Changes since V4
 - Replaced instances of dev_err followed by a return in the probe
   functions with a return of dev_err_probe instead.
 - Simplified cell definition of main driver for probe.
 - Updated copyright year to 2025 on copyright strings.
Changes since V5
 - Removed erroneous Reviewed-by tag from mfd patch.
 - Made mfd_cells static const in mfd probe function.
 - Removed unneeded enum from header file.
Changes since V6
 - Fixed https://lore.kernel.org/all/202508181503.GrRD2T4C-lkp@intel.com/
   by explicitly setting the register in question to 0 and adding a
   note to describe the change.
 - Fixed https://lore.kernel.org/all/202508210308.Lw2Klipk-lkp@intel.com/
   by changing an IS_ERR_OR_NULL() to just an IS_ERR().
 - Fixed https://lore.kernel.org/all/202508141051.hwl2Erq6-lkp@intel.com/
   by removing the uninitalized variable in question which is not
   needed.
Changes since V7:
 - Changed regmap cache type in mfd to REGCACHE_MAPLE.
 - Corrected mfd_cell struct location.
 - Added whitespace for readability. 

Chris Morgan (5):
  dt-bindings: mfd: ti,bq25703a: Add TI BQ25703A Charger
  mfd: bq257xx: Add support for BQ25703A core driver
  power: supply: bq257xx: Add support for BQ257XX charger
  regulator: bq257xx: Add bq257xx boost regulator driver
  arm64: dts: rockchip: Add USB and charger to Gameforce Ace

 .../devicetree/bindings/mfd/ti,bq25703a.yaml  | 117 +++
 .../dts/rockchip/rk3588s-gameforce-ace.dts    | 122 +++
 drivers/mfd/Kconfig                           |  11 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/bq257xx.c                         |  99 +++
 drivers/power/supply/Kconfig                  |   7 +
 drivers/power/supply/Makefile                 |   1 +
 drivers/power/supply/bq257xx_charger.c        | 755 ++++++++++++++++++
 drivers/regulator/Kconfig                     |   8 +
 drivers/regulator/Makefile                    |   1 +
 drivers/regulator/bq257xx-regulator.c         | 186 +++++
 include/linux/mfd/bq257xx.h                   | 104 +++
 12 files changed, 1412 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/ti,bq25703a.yaml
 create mode 100644 drivers/mfd/bq257xx.c
 create mode 100644 drivers/power/supply/bq257xx_charger.c
 create mode 100644 drivers/regulator/bq257xx-regulator.c
 create mode 100644 include/linux/mfd/bq257xx.h

-- 
2.43.0