power: supply: charger: add cps5601x charger driver

Signed-off-by: Chen Shunqing <csq@rock-chips.com>
Change-Id: I83378ef4952a7f946e517cf34b0a91b3c79b8ffd

Documentation/devicetree/bindings/power/supply/cps5601x_charger.txt

@@ -0,0 +1,32 @@
+Binding for cps5601x battery charger
+
+Required properties:
+- compatible: "cps,cps5601x" for cps5601x Charger Power Supply
+- monitored-battery: phandle of battery characteristics devicetree node
+- input-voltage-limit-microvolt: integer, input voltage level in uV, used to
+				 decrease voltage level when the over current
+				 of the input power source occurs.
+- input-current-limit-microamp: integer, input current value in uA drained by the
+				charger from the power source.Default: 500000 uA (500mA)
+
+child nodes:
+- vbus5v0_typec:
+  Usage: optional
+  Description: Regulator that is used to control the VBUS voltage direction for
+               either USB host mode or for charging on the OTG port.
+
+Example:
+
+cps5601x: cps5601x@60 {
+                compatible = "cps,cps5601x";
+                reg = <0x60>;
+                input-voltage-limit-microvolt = <4500000>;
+                input-current-limit-microamp = <3000000>;
+                monitored-battery = <&bat>;
+                regulators {
+                        vbus5v0_typec: vbus5v0-typec {
+                                regulator-compatible = "otg-vbus";
+                                regulator-name = "vbus5v0_typec";
+                        };
+                };
+        };

drivers/power/supply/Kconfig

@@ -490,6 +490,14 @@ config CHARGER_CPCAP
 	  Say Y to enable support for CPCAP PMIC charger driver for Motorola
 	  mobile devices such as Droid 4.
 
+config CHARGER_CPS5601X
+	tristate "CPS5601X charger driver"
+	depends on I2C
+	depends on GPIOLIB || COMPILE_TEST
+	select REGMAP_I2C
+	help
+	  Say Y to enable support for the CPS5601X battery charger.
+
 config CHARGER_ISP1704
 	tristate "ISP1704 USB Charger Detection"
 	depends on USB_PHY

drivers/power/supply/Makefile

@@ -66,6 +66,7 @@ obj-$(CONFIG_CHARGER_PCF50633)	+= pcf50633-charger.o
 obj-$(CONFIG_BATTERY_RX51)	+= rx51_battery.o
 obj-$(CONFIG_AB8500_BM)		+= ab8500_bmdata.o ab8500_charger.o ab8500_fg.o ab8500_btemp.o ab8500_chargalg.o
 obj-$(CONFIG_CHARGER_CPCAP)	+= cpcap-charger.o
+obj-$(CONFIG_CHARGER_CPS5601X)	+= cps5601x_charger.o
 obj-$(CONFIG_CHARGER_ISP1704)	+= isp1704_charger.o
 obj-$(CONFIG_CHARGER_MAX8903)	+= max8903_charger.o
 obj-$(CONFIG_CHARGER_TWL4030)	+= twl4030_charger.o