power: supply: bq256xx: Introduce the BQ256XX charger driver

The BQ256XX family of devices are highly integrated buck chargers
for single cell batteries.
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/Kconfig

@@ -646,6 +646,17 @@ config CHARGER_BQ25980
 	  Say Y to enable support for the TI BQ25980, BQ25975 and BQ25960
 	  series of fast battery chargers.
 
+config CHARGER_BQ256XX
+	tristate "TI BQ256XX battery charger driver"
+	depends on I2C
+	depends on GPIOLIB || COMPILE_TEST
+	select REGMAP_I2C
+	help
+	  Say Y to enable support for the TI BQ256XX battery chargers. The
+	  BQ256XX family of devices are highly-integrated, switch-mode battery
+	  charge management and system power path management devices for single
+	  cell Li-ion and Li-polymer batteries.
+
 config CHARGER_SMB347
 	tristate "Summit Microelectronics SMB3XX Battery Charger"
 	depends on I2C

drivers/power/supply/Makefile

@@ -85,6 +85,7 @@ obj-$(CONFIG_CHARGER_BQ24735)	+= bq24735-charger.o
 obj-$(CONFIG_CHARGER_BQ2515X)	+= bq2515x_charger.o
 obj-$(CONFIG_CHARGER_BQ25890)	+= bq25890_charger.o
 obj-$(CONFIG_CHARGER_BQ25980)	+= bq25980_charger.o
+obj-$(CONFIG_CHARGER_BQ256XX)	+= bq256xx_charger.o
 obj-$(CONFIG_CHARGER_SMB347)	+= smb347-charger.o
 obj-$(CONFIG_CHARGER_TPS65090)	+= tps65090-charger.o
 obj-$(CONFIG_CHARGER_TPS65217)	+= tps65217_charger.o