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Commit dbb02642 authored by Xiaozhe Shi's avatar Xiaozhe Shi
Browse files

power: smb349-charger: make the battery capacity writeable 



There are some applications that may want to fake a battery state of
charge (SoC). To standarize this on different devices, make the battery
power supply capacity property writeable.

Change-Id: I0db3b2d7442330ce5fc80aa4dae65c7270b513b8
Signed-off-by: default avatarXiaozhe Shi <xiaozhes@codeaurora.org>
parent ef9bf4d1

drivers/power/smb349-charger.c

+10 −0
Original line number Diff line number Diff line
@@ -170,6 +170,7 @@ struct smb349_charger { 
	int			chg_valid_gpio;

	int			chg_valid_act_low;

	int			chg_present;

	int			fake_battery_soc;

	bool			chg_autonomous_mode;

	bool			disable_apsd;

	bool			battery_missing;
@@ -643,6 +644,9 @@ static int smb349_get_prop_batt_capacity(struct smb349_charger *chip) 
{

	union power_supply_propval ret = {0, };



	if (chip->fake_battery_soc >= 0)

		return chip->fake_battery_soc;



	if (chip->bms_psy) {

		chip->bms_psy->get_property(chip->bms_psy,

				POWER_SUPPLY_PROP_CAPACITY, &ret);
@@ -788,6 +792,7 @@ smb349_batt_property_is_writeable(struct power_supply *psy, 
{

	switch (psp) {

	case POWER_SUPPLY_PROP_CHARGING_ENABLED:

	case POWER_SUPPLY_PROP_CAPACITY:

		return 1;

	default:

		break;
@@ -807,6 +812,10 @@ static int smb349_battery_set_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_CHARGING_ENABLED:

		smb349_charging(chip, val->intval);

		break;

	case POWER_SUPPLY_PROP_CAPACITY:

		chip->fake_battery_soc = val->intval;

		power_supply_changed(&chip->batt_psy);

		break;

	default:

		return -EINVAL;

	}
@@ -1370,6 +1379,7 @@ static int smb349_charger_probe(struct i2c_client *client, 
	chip->client = client;

	chip->dev = &client->dev;

	chip->usb_psy = usb_psy;

	chip->fake_battery_soc = -EINVAL;



	/* probe the device to check if its actually connected */

	rc = smb349_read_reg(chip, CHG_OTH_CURRENT_CTRL_REG, &reg);