Commit 0ff96915 authored by Sebastian Reichel's avatar Sebastian Reichel Committed by Sebastian Reichel
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power: supply: sbs-battery: Add TI BQ20Z65 support 

Add support for BQ20Z65 manufacturer data to the sbs-battery
driver. Implementation has been verified using the public TRM
available from [0] and tested using a GE Flex 3S2P battery.

[0] http://www.ti.com/lit/pdf/sluu386



Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent 601c2a54

Documentation/devicetree/bindings/power/supply/sbs_sbs-battery.txt

+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ Required properties : 
     part number compatible string might be used in order to take care of

     vendor specific registers.

     Known <vendor>,<part-number>:

       ti,bq20z65

       ti,bq20z75



Optional properties :

drivers/power/supply/sbs-battery.c

+10 −5
Original line number Diff line number Diff line
@@ -149,8 +149,8 @@ static enum power_supply_property sbs_properties[] = { 
	POWER_SUPPLY_PROP_MODEL_NAME

};



/* Supports special manufacturer commands from TI BQ20Z75 IC. */

#define SBS_FLAGS_TI_BQ20Z75		BIT(0)

/* Supports special manufacturer commands from TI BQ20Z65 and BQ20Z75 IC. */

#define SBS_FLAGS_TI_BQ20ZX5		BIT(0)



struct sbs_info {

	struct i2c_client		*client;
@@ -626,7 +626,7 @@ static int sbs_get_property(struct power_supply *psy, 
	switch (psp) {

	case POWER_SUPPLY_PROP_PRESENT:

	case POWER_SUPPLY_PROP_HEALTH:

		if (chip->flags & SBS_FLAGS_TI_BQ20Z75)

		if (chip->flags & SBS_FLAGS_TI_BQ20ZX5)

			ret = sbs_get_ti_battery_presence_and_health(client,

								     psp, val);

		else
@@ -950,7 +950,7 @@ static int sbs_suspend(struct device *dev) 
	if (chip->poll_time > 0)

		cancel_delayed_work_sync(&chip->work);



	if (chip->flags & SBS_FLAGS_TI_BQ20Z75) {

	if (chip->flags & SBS_FLAGS_TI_BQ20ZX5) {

		/* Write to manufacturer access with sleep command. */

		ret = sbs_write_word_data(client,

					  sbs_data[REG_MANUFACTURER_DATA].addr,
@@ -970,6 +970,7 @@ static SIMPLE_DEV_PM_OPS(sbs_pm_ops, sbs_suspend, NULL); 
#endif



static const struct i2c_device_id sbs_id[] = {

	{ "bq20z65", 0 },

	{ "bq20z75", 0 },

	{ "sbs-battery", 1 },

	{}
@@ -978,9 +979,13 @@ MODULE_DEVICE_TABLE(i2c, sbs_id); 


static const struct of_device_id sbs_dt_ids[] = {

	{ .compatible = "sbs,sbs-battery" },

	{

		.compatible = "ti,bq20z65",

		.data = (void *)SBS_FLAGS_TI_BQ20ZX5,

	},

	{

		.compatible = "ti,bq20z75",

		.data = (void *)SBS_FLAGS_TI_BQ20Z75,

		.data = (void *)SBS_FLAGS_TI_BQ20ZX5,

	},

	{ }

};