[PATCH] GTA01: Add "present" property to power_supply

[Nelson Castillo]

Small patch to add /sys/class/power_supply/battery/present.
You must not run a GTA01 without battery thus it is always 1.

Signed-off-by: Nelson Castillo <arhu...@freaks-unidos.net>
---

 drivers/power/gta01_battery.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/power/gta01_battery.c b/drivers/power/gta01_battery.c
index 909f7fe..81a0fe7 100644
--- a/drivers/power/gta01_battery.c
+++ b/drivers/power/gta01_battery.c
@@ -19,6 +19,7 @@ struct gta01_battery {
 };
 
 static enum power_supply_property gta01_bat_props[] = {
+       POWER_SUPPLY_PROP_PRESENT,
        POWER_SUPPLY_PROP_STATUS,
        POWER_SUPPLY_PROP_VOLTAGE_NOW,
        POWER_SUPPLY_PROP_CURRENT_NOW,
@@ -43,6 +44,9 @@ static int gta01_bat_get_property(struct power_supply *psy,
        case POWER_SUPPLY_PROP_CURRENT_NOW:
                val->intval = bat->pdata->get_current();
                break;
+       case POWER_SUPPLY_PROP_PRESENT:
+               val->intval = 1; /* You must never run GTA01 without battery. */
+               break;
        default:
                return -EINVAL;
        }