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max17042_battery: Support CHARGE_COUNTER power supply attribute

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This patch adds the support for CHARGE_COUNTER power supply attribute
to max17042/47 driver.

Note:QH(Charge Counter) register is not documented in max17042 the Spec.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
Ramakrishna Pallala 2012-05-07 10:25:58 +05:30 committed by Anton Vorontsov
parent 19dd6bcd11
commit 5fc55bc822
1 changed files with 8 additions and 0 deletions
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8
drivers/power/max17042_battery.c
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@ -113,6 +113,7 @@ static enum power_supply_property max17042_battery_props[] = {
POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_COUNTER,
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
@ -199,6 +200,13 @@ static int max17042_get_property(struct power_supply *psy,
if (ret < 0)
return ret;
val->intval = ret * 1000 / 2;
break;
case POWER_SUPPLY_PROP_CHARGE_COUNTER:
ret = max17042_read_reg(chip->client, MAX17042_QH);
if (ret < 0)
return ret;
val->intval = ret * 1000 / 2;
break;
case POWER_SUPPLY_PROP_TEMP: