Android：展锐charger

可以通过dts设定charger相关信息，比如充电电流，充电截止电流，不同温度充电温控策略等。

charger-manager节点

charger-manager {
	compatible = "charger-manager";
	cm-name = "battery";
	cm-poll-mode = <2>; //“_cm_monitor”轮询模式
	cm-poll-interval = <15000>; //“_cm_monitor”轮询时间间隔
	cm-battery-stat = <2>; //电池在位检测方法，电压法
	cm-fullbatt-vchkdrop-ms = <30000>; //充满电后，检查复充条件的周期
	cm-fullbatt-vchkdrop-volt = <60000>;//满电后复充电压条件
	cm-fullbatt-voltage = <4350000>;//软件满电电压判断阈值，必须配置
	cm-fullbatt-current = <120000>;//软件满电电流判断阈值，必须配置
	cm-fullbatt-capacity = <100>;//电池满电时百分比
	cm-num-chargers = <1>;//charger ic数量
	cm-chargers = "fan54015_charger";//charger ic名字
	cm-fuel-gauge = "sc27xx-fgu";//fgu名字
	/* in deci centigrade */
	cm-battery-cold = <200>; //电池温度CM_EVENT_BATT_COLD阈值
	cm-battery-cold-in-minus; //负温标志
	cm-battery-hot = <800>; //电池温度CM_EVENT_BATT_OVERHEAT阈值
	cm-battery-temp-diff = <100>; //修正异常时COLD 和 OVERHEAT阈值
	
	/* Allow charging for 6hr */
	cm-charging-max = <21600000>; //允许连续充电的最长时间
	/* recovery charging after stop charging 45min */
	cm-discharging-max = <2700000>; //停充后，如果插着充电器，允许复充时间
	/* the interval to feed charger watchdog */
	cm-wdt-interval = <60>; //feed watchdog周期，同时也是开启feedwatchdog的开关

	/* drop voltage in microVolts to allow shutdown */
	cm-shutdown-voltage = <3100000>; //uvlo电压阈值
	/* when 99% of the time is exceeded, it will be forced to 100% */
	cm-tickle-time-out = <1500>; //电量维持在99% 15分钟后跳到100%
	/* how much time to allow capacity change */
	cm-one-cap-time = <30>; //允许电量增加1%最快时间
	/* when the safe charging voltage is exceeded, stop charging */
	cm-charge-voltage-max = <6500000>; //充电器过压保护电压阈值
	/* drop voltage in microVolts to restart charging */
	cm-charge-voltage-drop = <700000>;//复充电压条件
	
	cm-dcp-jeita-temp-table = <1000 1030 0 4400000>, <1150 1180 700000 4400000>,
	<1450 1420 1150000 4400000>, <1600 1570 700000 4100000>;
	cm-sdp-jeita-temp-table = <1000 1030 0 4400000>, <1150 1180 500000 4400000>,
	<1450 1420 500000 4400000>, <1600 1570 500000 4100000>;
	cm-cdp-jeita-temp-table = <1000 1030 0 4400000>, <1150 1180 700000 4400000>,
	<1450 1420 1150000 4400000>, <1600 1570 700000 4100000>;
	cm-unknown-jeita-temp-table = <1000 1030 0 4400000>, <1150 1180 500000 4400000>,
	<1450 1420 500000 4400000>, <1600 1570 500000 4100000>;
	monitored-battery = <&bat>; //电池参数信息，容量自学习必须
	cm-capacity-track; //容量自学习开关
	cm-cap-remap-table = <1 2 3>, <2 3 2>, <98 99 2>, <99 100 3>; //电量再分配
	
	regulator@0 {
		cm-regulator-name = "vddgen0";
		cable@0 {
			cm-cable-name = "USB";
			extcon = <&PMIC_typec>;
		};
	};
};

Charger IC节点

sc2703_pmic: pmic@4C {
	compatible = "sprd,sc2703";
	reg = <0x4c>;
	sc2703-charger {
		compatible = "sprd,sc2703-charger";
		phys = <&ssphy>;
		monitored-battery = <&bat>;
		extcon = <&pmic_typec>;
		sprd,long-key-detection;
		vddvbus:otg-vbus {
			regulator-name = "vddvbus";
		};
	};
};