Hi Enric,
On Sat, May 27, 2017 at 1:11 PM, Enric Balletbo Serra
<eballetbo@xxxxxxxxx> wrote:
> Hi Liam,
>
> 2017-05-26 23:20 GMT+02:00 Liam Breck <liam@xxxxxxxxxxxxxxxxx>:
>> Hi Enric,
>>
>> On Fri, May 26, 2017 at 4:04 AM, Enric Balletbo i Serra
>> <enric.balletbo@xxxxxxxxxxxxx> wrote:
>>> Add charging voltage and current characteristics to the battery DT for
>>> proper handling of the battery by fuel-gauge and charger chips.
>>>
>>> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
>>> ---
>>> Changes since v2:
>>> - Requested by Sebastian Reichel
>>> - Move to its own patch and apply to simple-battery framework.
>>> Changes since v1:
>>> - Requested by Rob Herring
>>> - Rename ti,charge-* to charge-* to be standard properties.
>>> - Use unit suffixes as per bindings/property-units.txt
>>>
>>> Documentation/devicetree/bindings/power/supply/battery.txt | 4 ++++
>>> 1 file changed, 4 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/power/supply/battery.txt b/Documentation/devicetree/bindings/power/supply/battery.txt
>>> index 63a7028..c87a439 100644
>>> --- a/Documentation/devicetree/bindings/power/supply/battery.txt
>>> +++ b/Documentation/devicetree/bindings/power/supply/battery.txt
>>> @@ -12,6 +12,8 @@ Optional Properties:
>>> - voltage-min-design-microvolt: drained battery voltage
>>> - energy-full-design-microwatt-hours: battery design energy
>>> - charge-full-design-microamp-hours: battery design capacity
>>> + - charge-voltage-microvolt: battery charging voltage
>>> + - charge-current-microamp: battery charging current
>>
>> I think you mean constant-charge-* which is how you surface these
>> properties in your tps65217_charger patch.
>>
>
> Yes, to be strict this is constant-charge-*
The DT battery node should carry static battery characteristics. So on
reflection, I think you want
constant-charge-current-max-microamp
constant-charge-voltage-max-microvolt
The charger or the user could then safely apply any value <= those.
Thoughts?
>> I'll add these to v14 of my patchset which adds simple-battery
>> support. Rob requested a single patch for this file.
>>
>
> Ok, I'll send the tps charger series without this patch, so please,
> include this patch in your series.
>
>> I've been waiting for feedback on v13.2 from Sebastian. If I don't
>> hear from him within a few days, I'll post v14.
>>
>>> Batteries must be referenced by chargers and/or fuel-gauges
>>> using a phandle. The phandle's property should be named
>>> @@ -24,6 +26,8 @@ Example:
>>> voltage-min-design-microvolt = <3200000>;
>>> energy-full-design-microwatt-hours = <5290000>;
>>> charge-full-design-microamp-hours = <1430000>;
>>> + charge-voltage-microvolt = <4100000>;
>>> + charge-current-microamp = <300000>;
>>> };
>>>
>>> charger: charger@11 {
>>> --
>>> 2.9.3
>>>
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