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 can be found here: https://lore.kernel.org/linux-arm-msm/20220323162820.110806-1-caleb@xxxxxxxxxxxxx/ 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 (6): power: supply: add Qualcomm PMI8998 SMB2 Charger driver arm64: dts: qcom: pmi8998: add charger node arm64: dts: sdm845-oneplus: enable pmi8998 charger arm64: dts: qcom: sdm845-db845c: enable pmi8998 charger arm64: dts: qcom: sdm845-xiaomi-beryllium enable pmi8998 charger dt-bindings: power: supply: qcom,pmi8998-charger: add bindings for smb2 driver .../power/supply/qcom,pmi8998-charger.yaml | 83 ++ arch/arm64/boot/dts/qcom/pmi8998.dtsi | 17 + arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 18 + .../boot/dts/qcom/sdm845-oneplus-common.dtsi | 4 + .../dts/qcom/sdm845-oneplus-enchilada.dts | 4 + .../boot/dts/qcom/sdm845-oneplus-fajita.dts | 4 + .../boot/dts/qcom/sdm845-xiaomi-beryllium.dts | 13 + drivers/power/supply/Kconfig | 9 + drivers/power/supply/Makefile | 1 + drivers/power/supply/qcom_pmi8998_charger.c | 1070 +++++++++++++++++ 10 files changed, 1223 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/qcom,pmi8998-charger.yaml create mode 100644 drivers/power/supply/qcom_pmi8998_charger.c -- 2.36.0
