power: supply: sbs-battery: Don't needlessly set CAPACITY_MODE

According to the smart battery spec (1), the CAPACITY_MODE bit does not
influence the value read from RelativeStateOfCharge(), so don't bother
changing CAPACITY_MODE when doing such a read.

(1) - Smart Battery Data Specification, Rev 1.1, Dec. 11, 1998

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c
index cdc1d71..f705945 100644 (file)
--- a/drivers/power/supply/sbs-battery.c
+++ b/drivers/power/supply/sbs-battery.c
@@ -438,6 +438,11 @@ static int sbs_get_battery_property(struct i2c_client *client,
        } else {
                if (psp == POWER_SUPPLY_PROP_STATUS)
                        val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+               else if (psp == POWER_SUPPLY_PROP_CAPACITY)
+                       /* sbs spec says that this can be >100 %
+                        * even if max value is 100 %
+                        */
+                       val->intval = min(ret, 100);
                else
                        val->intval = 0;
        }
@@ -548,12 +553,7 @@ static int sbs_get_battery_capacity(struct i2c_client *client,
        if (ret < 0)
                return ret;
 
-       if (psp == POWER_SUPPLY_PROP_CAPACITY) {
-               /* sbs spec says that this can be >100 %
-               * even if max value is 100 % */
-               val->intval = min(ret, 100);
-       } else
-               val->intval = ret;
+       val->intval = ret;
 
        ret = sbs_set_battery_mode(client, mode);
        if (ret < 0)
@@ -618,7 +618,6 @@ static int sbs_get_property(struct power_supply *psy,
        case POWER_SUPPLY_PROP_CHARGE_NOW:
        case POWER_SUPPLY_PROP_CHARGE_FULL:
        case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
-       case POWER_SUPPLY_PROP_CAPACITY:
                ret = sbs_get_property_index(client, psp);
                if (ret < 0)
                        break;
@@ -646,6 +645,7 @@ static int sbs_get_property(struct power_supply *psy,
        case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG:
        case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
        case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+       case POWER_SUPPLY_PROP_CAPACITY:
                ret = sbs_get_property_index(client, psp);
                if (ret < 0)
                        break;