Add a driver for the Qualcomm PMI8998/PM660 Switch-Mode Battery Charger. This is the second generation SMB charger, and replaces the previous SMBB hardware found in older PMICs. This driver provides basic support for initialising the hardware, configuring the USB input current limit and reporting information about the state of the charger. Features like type-c dual role support and OTG switching will be added in future patches. This patch series depends on my previous series adding support for the Round Robin ADC which is used for reading the USB voltage and current, it is currently queued in linux-next, and can be found here: https://lore.kernel.org/linux-arm-msm/20220429220904.137297-1-caleb.connolly@xxxxxxxxxx/ This has now been merged Changes since v4: * Fix typo when setting FAST_CHARGE_CURRENT_CFG - the OnePlus 6 now charges properly! * Limited charge current to 1A until we better understand the thermal protection features and how to use them. * Address Sebastian's comments (thanks for your patience with this) * re-run clang-format Changes since v3: * Drop DTS patches, to be sent in a future series * Add POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT so that the charger will be exposed as a cooling device, see https://lore.kernel.org/linux-pm/164f2458-fb66-f238-7143-bdbe1e200870@xxxxxxxxxx * Run clang-format and prevent it from breaking the formatting of the defines * Apply Sebastian's suggested fixes Changes since v2: * Use devm_delayed_work_autocancel * Minor driver fixes * Pick up Krzysztof's R-b on the DT patch Changes since v1: * Rename the driver to pmi8998_charger * Drop unnecessary (and very broken) mutex * Rework the driver based on feedback to v1 * Fix some minor bugs and improve Automatic Input Current Limit support Caleb Connolly (2): power: supply: add Qualcomm PMI8998 SMB2 Charger driver dt-bindings: power: supply: qcom,pmi8998-charger: add bindings for smb2 driver .../power/supply/qcom,pmi8998-charger.yaml | 82 ++ drivers/power/supply/Kconfig | 16 + drivers/power/supply/Makefile | 1 + drivers/power/supply/qcom_pmi8998_charger.c | 1040 +++++++++++++++++ 4 files changed, 1139 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/qcom,pmi8998-charger.yaml create mode 100644 drivers/power/supply/qcom_pmi8998_charger.c -- 2.38.0
