mirror of https://gitee.com/openkylin/linux.git
power: supply: max17040: Add POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN
Adds the property POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN to export the chip->low_soc_alert and add the property as writeable, implementing max17040_prop_writeable and max17040_set_property, so with that the user space can readjust the alerts. Signed-off-by: Matheus Castello <matheus@castello.eng.br> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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@ -69,6 +69,9 @@ static int max17040_get_property(struct power_supply *psy,
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case POWER_SUPPLY_PROP_CAPACITY:
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val->intval = chip->soc;
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break;
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case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
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val->intval = chip->low_soc_alert;
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break;
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default:
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return -EINVAL;
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}
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@ -256,17 +259,55 @@ static int max17040_enable_alert_irq(struct max17040_chip *chip)
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return ret;
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}
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static int max17040_prop_writeable(struct power_supply *psy,
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enum power_supply_property psp)
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{
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switch (psp) {
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case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
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return 1;
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default:
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return 0;
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}
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}
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static int max17040_set_property(struct power_supply *psy,
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enum power_supply_property psp,
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const union power_supply_propval *val)
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{
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struct max17040_chip *chip = power_supply_get_drvdata(psy);
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int ret;
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switch (psp) {
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case POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN:
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/* alert threshold can be programmed from 1% up to 32% */
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if ((val->intval < 1) || (val->intval > 32)) {
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ret = -EINVAL;
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break;
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}
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ret = max17040_set_low_soc_alert(chip->client, val->intval);
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chip->low_soc_alert = val->intval;
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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static enum power_supply_property max17040_battery_props[] = {
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POWER_SUPPLY_PROP_STATUS,
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POWER_SUPPLY_PROP_ONLINE,
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POWER_SUPPLY_PROP_VOLTAGE_NOW,
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POWER_SUPPLY_PROP_CAPACITY,
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POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN,
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};
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static const struct power_supply_desc max17040_battery_desc = {
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.name = "battery",
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.type = POWER_SUPPLY_TYPE_BATTERY,
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.get_property = max17040_get_property,
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.set_property = max17040_set_property,
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.property_is_writeable = max17040_prop_writeable,
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.properties = max17040_battery_props,
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.num_properties = ARRAY_SIZE(max17040_battery_props),
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};
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