Messages in this thread | | | From | Wolfgang Wiedmeyer <> | Subject | Re: [PATCH 2/2] power: supply: max17042_battery: add technology property support | Date | Mon, 26 Sep 2016 14:56:44 +0200 |
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Krzysztof Kozlowski writes:
> On Sun, Sep 25, 2016 at 11:10:11PM +0200, Wolfgang Wiedmeyer wrote: >> This patch reports the battery technology as Li-ion. >> >> Signed-off-by: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> >> --- >> drivers/power/max17042_battery.c | 4 ++++ >> 1 file changed, 4 insertions(+) >> >> diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c >> index 20cb1fd..43cb5df 100644 >> --- a/drivers/power/max17042_battery.c >> +++ b/drivers/power/max17042_battery.c >> @@ -92,6 +92,7 @@ static enum power_supply_property max17042_battery_props[] = { >> POWER_SUPPLY_PROP_TEMP_MIN, >> POWER_SUPPLY_PROP_TEMP_MAX, >> POWER_SUPPLY_PROP_HEALTH, >> + POWER_SUPPLY_PROP_TECHNOLOGY, >> POWER_SUPPLY_PROP_CURRENT_NOW, >> POWER_SUPPLY_PROP_CURRENT_AVG, >> }; >> @@ -296,6 +297,9 @@ static int max17042_get_property(struct power_supply *psy, >> if (ret < 0) >> return ret; >> break; >> + case POWER_SUPPLY_PROP_TECHNOLOGY: >> + val->intval = POWER_SUPPLY_TECHNOLOGY_LION; > > How can you be sure it is always Li-Ion? For wearables and mobiles, rather yes, but > the driver is also used in other devices. Technically, specs are saying > it might be used also with Li-Poly applications.
I suppose that there is no way to detect this. Would it be ok if I add an optional Device Tree property that allows to specify if it's Li-Ion or Li-Poly? If the property is not supplied, then "unknown" is returned.
Thanks, Wolfgang
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