Merge "power: Add snapshot of STC311x FG driver"

STC311x Fuel Gauge device

STC311x FG provides interface to clients to read properties related

to the battery. Its main function is to retrieve the State of Charge (SOC),

a 0-100 percentage representing the amount of charge left in the battery.

- compatible

	Usage:		Required

	Value:		<string>

	Definition:	Must be  "st,stc311x" for the driver.

- reg

	Usage:		Required

	Value:		<u32>

	Definition:	The device 7-bit I2C address.

- st,float-voltage-mv

	Usage:		Required

	Value type:	<u32> in mV.

	Definition:	Float Voltage in mV - the maximum voltage up to which

			the battery is charged.

- st,rsense-mohm

	Usage:		Required

	Value type:	<u32> in mohm.

	Definition:	Current sense resistance value.

- st,nom-capacity-mah

	Usage:		Required

	Value type:	<u32> in mah.

	Definition:	This specifies nominal capacity of battery.

- st,rbatt-mohm

	Usage:		Required

	Value type:	<u32> in mohm.

	Definition:	This specifies battery internal resistance.

- st,ocv-tbl

	Usage:		Required

	Value type:	<u16 array> in mV.

	Definition:	This specifies an array of battery open circuit voltages at

			different SOC points.

			SOC points: [0 3 6 10 15 20 25 30 40 50 60 65 70 80 90

					100].

- st,vmtemp-tbl

	Usage:		Required

	Value type:	<u16 array>

	Definition:	This specifies an array of VCNF compensation table at

			different temperatures.

- st,temp-tbl

	Usage:		Required

	Value type:	<s16 array in DeciDegC>

	Definition:	This specifies an array of temperature points used in

			vtemp table and adaptive capacity tables.

- st,cutoff-voltage-mv

	Usage:		Optional

	Value type:	<u32> in mV

	Definition:	This is the minimum allowed system voltage. The FG

			will report SOC = 0 at this volatge. This value is

			also used to configure alarm voltage threshold.

			If not specified default value is set to 3400mV.

- st,alarm-soc

	Usage:		Optional

	Value type:	<u32> in %

	Definition:	This is the alarm SOC threshold.

			If not specified default value is set to 10%.

- st,term-current-ma

	Usage:		Optional

	Value type:	<u32> in mA

	Definition:	This is the maximum current threshold limit used to

			decide end of charge.

			If not specified value is set to

- st,relax-current-ma

	Usage:		Optional

	Value type:	<u32> in mA

	Definition:	This is the current threshold to decide automatic mode

			switch between voltage and moxec mode.

			If not specified value is set to

- st,adaptive-capacity-tbl

	Usage:		Optional

	Value type:	<u16 array, each element is in 0.1%>

	Definition:	This table specifies capacity degradation with

			temperature.

- st,force-voltage-mode

	Usage:		Optional

	Value type:	Boolean

	Definition:	This is to force FG always in low power voltage mode.

Example:

	st-fg@70 {

		compatible = "st,stc3117";

		reg = <0x70>;

		st,rbatt-mohm = <210>;

		st,nom-capacity-mah = <1500>;

		st,rsense-mohm = <10>;

		st,float-voltage-mv = <4200>;

		st,alarm-soc = <10>;

		st,alarm-voltage-mv = <3400>;

		st,term-current-ma = <150>;

		st,relax-current-ma = <200>;

		st,adaptive-capacity-tbl = /bits/ 16 <0 0 0 5 13 42 71>;

		st,ocv-tbl = /bits/ 16 <3300 3528 3667 3731 3753 3765 3772

					3792 3827 3900 3929 3957 3513 4072

					4167>;

		st,vmtemp-tbl = /bits/ 16 <85 90 100 160 320 440 840>

		st,temp-tbl = /bits/ 16 <60 40 25 10 0 (-10) (-20)>;

	};

	  The driver also offers relevant information to userspace via the

	  power supply framework.

config FUELGAUGE_STC3117

	tristate "STC3117 fuel gauge driver"

	default n

	depends on I2C

	help

	  Say Y to include support

	  for STC3117 fuel gauge driver for batteries.

	  This driver source code implemented

	  all functions for STC3117 fuel gauge.

config QPNP_FG

	tristate "QPNP fuel gauge driver"

	depends on SPMI || MSM_SPMI

obj-$(CONFIG_CHARGER_BQ2415X)	+= bq2415x_charger.o

obj-$(CONFIG_CHARGER_BQ24190)	+= bq24190_charger.o

obj-$(CONFIG_CHARGER_BQ24735)	+= bq24735-charger.o

obj-$(CONFIG_FUELGAUGE_STC3117)	+= stc3117_battery.o

obj-$(CONFIG_POWER_AVS)		+= avs/

obj-$(CONFIG_CHARGER_SMB347)	+= smb347-charger.o

obj-$(CONFIG_SMB349_USB_CHARGER)   += smb349-charger.o

#if CONFIG_BATTERY_STC3117

int null_fn(void)

{

	return 0;                // for discharging status

}

int Temperature_fn(void)

{

	return (25);

}

static struct stc311x_platform_data stc3117_data = {

	.battery_online = NULL,

	.charger_online = null_fn, 		// used in stc311x_get_status()

	.charger_enable = null_fn,		// used in stc311x_get_status()

	.power_supply_register = NULL,

	.power_supply_unregister = NULL,

	.Vmode= 0,       /*REG_MODE, BIT_VMODE 1=Voltage mode, 0=mixed mode */

	.Alm_SOC = 10,      /* SOC alm level %*/

	.Alm_Vbat = 3600,   /* Vbat alm level mV*/

	.CC_cnf = 525,      /* nominal CC_cnf, coming from battery characterisation*/

	.VM_cnf = 558,      /* nominal VM cnf , coming from battery characterisation*/

	.Rint = 200,			/* nominal internal impedance*/

	.Cnom = 2600,       /* nominal capacity in mAh, coming from battery characterisation*/

	.Rsense = 10,       /* sense resistor mOhms*/

	.RelaxCurrent = 150, /* current for relaxation in mA (< C/20) */

	.Adaptive = 1,     /* 1=Adaptive mode enabled, 0=Adaptive mode disabled */

	/* Elentec Co Ltd Battery pack - 80 means 8% */

	.CapDerating[6] = 71,   /* capacity derating in 0.1%, for temp = -20C */

	.CapDerating[5] = 42,   /* capacity derating in 0.1%, for temp = -10C */

	.CapDerating[4] = 13,   /* capacity derating in 0.1%, for temp = 0C */

	.CapDerating[3] = 5,   /* capacity derating in 0.1%, for temp = 10C */

	.CapDerating[2] = 0,   /* capacity derating in 0.1%, for temp = 25C */

	.CapDerating[1] = 0,   /* capacity derating in 0.1%, for temp = 40C */

	.CapDerating[0] = 0,   /* capacity derating in 0.1%, for temp = 60C */

	.OCVValue[15] = 0,   /* OCV curve adjustment */

	.OCVValue[14] = 0,   /* OCV curve adjustment */

	.OCVValue[13] = 0,   /* OCV curve adjustment */

	.OCVValue[12] = 0,   /* OCV curve adjustment */

	.OCVValue[11] = 0,   /* OCV curve adjustment */

	.OCVValue[10] = 0,   /* OCV curve adjustment */

	.OCVValue[9] = 0,    /* OCV curve adjustment */

	.OCVValue[8] = 0,    /* OCV curve adjustment */

	.OCVValue[7] = 0,    /* OCV curve adjustment */

	.OCVValue[6] = 0,    /* OCV curve adjustment */

	.OCVValue[5] = 0,    /* OCV curve adjustment */

	.OCVValue[4] = 0,    /* OCV curve adjustment */

	.OCVValue[3] = 0,    /* OCV curve adjustment */

	.OCVValue[2] = 0,    /* OCV curve adjustment */

	.OCVValue[1] = 0,    /* OCV curve adjustment */

	.OCVValue[0] = 0,    /* OCV curve adjustment */

	/*if the application temperature data is preferred than the STC3117 temperature*/

	.ExternalTemperature = Temperature_fn, /*External temperature fonction, return C*/

	.ForceExternalTemperature = 0, /* 1=External temperature, 0=STC3117 temperature */

};

#endif

static struct i2c_board_info __initdata beagle_i2c2_boardinfo[] = {

#if CONFIG_BATTERY_STC3117

	{

		I2C_BOARD_INFO("stc3117", 0x70),

			.platform_data = &stc3117_data,

	},

#endif

};