Commit 856f6fd1 authored by Mike Rapoport's avatar Mike Rapoport Committed by Samuel Ortiz
Browse files

mfd: Dialog DA9030 battery charger MFD driver 



This patch amends DA903x MFD driver with definitions and methods
needed for battery charger driver.

Signed-off-by: default avatarMike Rapoport <mike@compulab.co.il>
Signed-off-by: default avatarSamuel Ortiz <sameo@openedhand.com>
parent b8380c1a

drivers/mfd/da903x.c

+12 −0
Original line number Diff line number Diff line
@@ -151,12 +151,24 @@ int da903x_write(struct device *dev, int reg, uint8_t val) 
}

EXPORT_SYMBOL_GPL(da903x_write);



int da903x_writes(struct device *dev, int reg, int len, uint8_t *val)

{

	return __da903x_writes(to_i2c_client(dev), reg, len, val);

}

EXPORT_SYMBOL_GPL(da903x_writes);



int da903x_read(struct device *dev, int reg, uint8_t *val)

{

	return __da903x_read(to_i2c_client(dev), reg, val);

}

EXPORT_SYMBOL_GPL(da903x_read);



int da903x_reads(struct device *dev, int reg, int len, uint8_t *val)

{

	return __da903x_reads(to_i2c_client(dev), reg, len, val);

}

EXPORT_SYMBOL_GPL(da903x_reads);



int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask)

{

	struct da903x_chip *chip = dev_get_drvdata(dev);

include/linux/mfd/da903x.h

+42 −2
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ enum { 
	DA9030_ID_LDO18,

	DA9030_ID_LDO19,

	DA9030_ID_LDO_INT,	/* LDO Internal */

	DA9030_ID_BAT,		/* battery charger */



	DA9034_ID_LED_1,

	DA9034_ID_LED_2,
@@ -93,6 +94,43 @@ struct da9034_touch_pdata { 
	int	y_inverted;

};



/* DA9030 battery charger data */

struct power_supply_info;



struct da9030_battery_info {

	/* battery parameters */

	struct power_supply_info *battery_info;



	/* current and voltage to use for battery charging */

	unsigned int charge_milliamp;

	unsigned int charge_millivolt;



	/* voltage thresholds (in millivolts) */

	int vbat_low;

	int vbat_crit;

	int vbat_charge_start;

	int vbat_charge_stop;

	int vbat_charge_restart;



	/* battery nominal minimal and maximal voltages in millivolts */

	int vcharge_min;

	int vcharge_max;



	/* Temperature thresholds. These are DA9030 register values

	   "as is" and should be measured for each battery type */

	int tbat_low;

	int tbat_high;

	int tbat_restart;





	/* battery monitor interval (seconds) */

	unsigned int batmon_interval;



	/* platform callbacks for battery low and critical events */

	void (*battery_low)(void);

	void (*battery_critical)(void);

};



struct da903x_subdev_info {

	int		id;

	const char	*name;
@@ -190,11 +228,13 @@ extern int da903x_unregister_notifier(struct device *dev, 
extern int da903x_query_status(struct device *dev, unsigned int status);





/* NOTE: the two functions below are not intended for use outside

 * of the DA9034 sub-device drivers

/* NOTE: the functions below are not intended for use outside

 * of the DA903x sub-device drivers

 */

extern int da903x_write(struct device *dev, int reg, uint8_t val);

extern int da903x_writes(struct device *dev, int reg, int len, uint8_t *val);

extern int da903x_read(struct device *dev, int reg, uint8_t *val);

extern int da903x_reads(struct device *dev, int reg, int len, uint8_t *val);

extern int da903x_update(struct device *dev, int reg, uint8_t val, uint8_t mask);

extern int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask);

extern int da903x_clr_bits(struct device *dev, int reg, uint8_t bit_mask);