FROMLIST: hwmon: Add Qualcomm PMIC BCL hardware monitor driver

Add support for Qualcomm PMIC Battery Current Limiting (BCL) hardware
monitor driver. The BCL peripheral is present in Qualcomm PMICs and
provides real-time monitoring and protection against battery
overcurrent and under voltage conditions.

The driver monitors:
- Battery voltage with configurable low voltage thresholds
- Battery current with configurable high current thresholds
- Two limit alarm interrupts (max/min, critical)

The driver integrates with the Linux hwmon subsystem and provides
standard hwmon attributes for monitoring battery conditions.

Signed-off-by: Manaf Meethalavalappu Pallikunhi <manaf.pallikunhi@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260206-qcom-bcl-hwmon-v1-2-7b426f0b77a1@oss.qualcomm.com

Author: quic-manafm

MAINTAINERS

@@ -21056,6 +21056,15 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/net/qcom,bam-dmux.yaml
 F:	drivers/net/wwan/qcom_bam_dmux.c
 
+QUALCOMM BCL HARDWARE MONITOR DRIVER
+M:	Manaf Meethalavalappu Pallikunhi <manaf.pallikunhi@oss.qualcomm.com>
+L:	linux-hwmon@vger.kernel.org
+L:	linux-arm-msm@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/hwmon/qcom,bcl-hwmon.yaml
+F:	drivers/hwmon/qcom-bcl-hwmon.c
+F:	drivers/hwmon/qcom-bcl-hwmon.h
+
 QUALCOMM BLUETOOTH DRIVER
 L:	linux-arm-msm@vger.kernel.org
 S:	Maintained

drivers/hwmon/Kconfig

@@ -1893,6 +1893,15 @@ config SENSORS_PWM_FAN
 	  This driver can also be built as a module. If so, the module
 	  will be called pwm-fan.
 
+config SENSORS_QCOM_BCL
+	tristate "Qualcomm BCL hardware monitoring"
+	help
+	  Say yes here to enable support for Qualcomm battery over current
+	  and under voltage alarms monitor.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called qcom-bcl-hwmon.
+
 config SENSORS_QNAP_MCU_HWMON
 	tristate "QNAP MCU hardware monitoring"
 	depends on MFD_QNAP_MCU

drivers/hwmon/Makefile

@@ -196,6 +196,7 @@ obj-$(CONFIG_SENSORS_POWERZ)	+= powerz.o
 obj-$(CONFIG_SENSORS_POWR1220)  += powr1220.o
 obj-$(CONFIG_SENSORS_PT5161L)	+= pt5161l.o
 obj-$(CONFIG_SENSORS_PWM_FAN)	+= pwm-fan.o
+obj-$(CONFIG_SENSORS_QCOM_BCL)	+= qcom-bcl-hwmon.o
 obj-$(CONFIG_SENSORS_QNAP_MCU_HWMON)	+= qnap-mcu-hwmon.o
 obj-$(CONFIG_SENSORS_RASPBERRYPI_HWMON)	+= raspberrypi-hwmon.o
 obj-$(CONFIG_SENSORS_SA67MCU)	+= sa67mcu-hwmon.o