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authorHans de Goede <hdegoede@redhat.com>2017-04-14 20:32:53 +0200
committerSebastian Reichel <sre@kernel.org>2017-05-01 12:37:37 +0200
commitef7fcdaebfce56bd7f1ac3b916b5d587a3666f10 (patch)
treeb672443f05e546317923cf469a416d1e93f6bd88 /drivers/power/supply
parentpower: supply: max17042_battery: Add external_power_changed callback (diff)
downloadlinux-ef7fcdaebfce56bd7f1ac3b916b5d587a3666f10.tar.xz
linux-ef7fcdaebfce56bd7f1ac3b916b5d587a3666f10.zip
power: supply: max17042_battery: Add support for the TECHNOLOGY attribute
The max17042 is intended for Li-Ion or Li-Po batteries, add a TECHNOLOGY attribute to reflect this. Note this is hardcoded to Li-Ion as there is no way to tell the difference, and Lithium-Ion Polymer batteries are a sub-family of Lithium-Ion so Li-Ion technically is correct for both. Using Li-Ion for both is already done by many drivers and is much better then not providing any technology info at all. Suggested-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Diffstat (limited to 'drivers/power/supply')
-rw-r--r--drivers/power/supply/max17042_battery.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c
index d355ee54b06d..254550038455 100644
--- a/drivers/power/supply/max17042_battery.c
+++ b/drivers/power/supply/max17042_battery.c
@@ -78,6 +78,7 @@ struct max17042_chip {
static enum power_supply_property max17042_battery_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
@@ -238,6 +239,9 @@ static int max17042_get_property(struct power_supply *psy,
else
val->intval = 1;
break;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ break;
case POWER_SUPPLY_PROP_CYCLE_COUNT:
ret = regmap_read(map, MAX17042_Cycles, &data);
if (ret < 0)