linux-kernel - Re: [PATCH v3 2/4] power: supply: core: add charging voltage/current battery info

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Date:   Sat, 27 May 2017 22:12:35 +0200
From:   Enric Balletbo Serra <eballetbo@...il.com>
To:     Liam Breck <liam@...workimprov.net>
Cc:     Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-pm@...r.kernel.org,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Liam Breck <kernel@...workimprov.net>
Subject: Re: [PATCH v3 2/4] power: supply: core: add charging voltage/current
 battery info

Hi Liam,

2017-05-26 23:22 GMT+02:00 Liam Breck <liam@...workimprov.net>:
> Hi Enric,
>
> I'll also incorporate these changes into v14 of my patchset. (See my prev msg.)
>

Perfect, thanks


>
> On Fri, May 26, 2017 at 4:04 AM, Enric Balletbo i Serra
> <enric.balletbo@...labora.com> wrote:
>> Add the parameters to define the battery charging voltage and charging
>> current. Charger driver can get this information from the struct
>> power_supply_battery_info and apply the desired value.
>>
>> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
>> ---
>> 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
>>
>>  drivers/power/supply/power_supply_core.c | 6 ++++++
>>  include/linux/power_supply.h             | 2 ++
>>  2 files changed, 8 insertions(+)
>>
>> diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
>> index 862fa8fc..a6857c2 100644
>> --- a/drivers/power/supply/power_supply_core.c
>> +++ b/drivers/power/supply/power_supply_core.c
>> @@ -530,6 +530,8 @@ int power_supply_get_battery_info(struct power_supply *psy,
>>         info->energy_full_design_uwh = -EINVAL;
>>         info->charge_full_design_uah = -EINVAL;
>>         info->voltage_min_design_uv  = -EINVAL;
>> +       info->charge_voltage_uv = -EINVAL;
>> +       info->charge_current_ua = -EINVAL;
>>
>>         if (!psy->of_node) {
>>                 dev_warn(&psy->dev, "%s currently only supports devicetree\n",
>> @@ -559,6 +561,10 @@ int power_supply_get_battery_info(struct power_supply *psy,
>>                              &info->charge_full_design_uah);
>>         of_property_read_u32(battery_np, "voltage-min-design-microvolt",
>>                              &info->voltage_min_design_uv);
>> +       of_property_read_u32(battery_np, "charge-voltage-microvolt",
>> +                            &info->charge_voltage_uv);
>> +       of_property_read_u32(battery_np, "charge-current-microamp",
>> +                            &info->charge_current_ua);
>>
>>         return 0;
>>  }
>> diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
>> index 8220f7b..3eea323 100644
>> --- a/include/linux/power_supply.h
>> +++ b/include/linux/power_supply.h
>> @@ -302,6 +302,8 @@ struct power_supply_battery_info {
>>         int energy_full_design_uwh;     /* microWatt-hours */
>>         int charge_full_design_uah;     /* microAmp-hours */
>>         int voltage_min_design_uv;      /* microVolts */
>> +       int charge_voltage_uv;          /* microVolts */
>> +       int charge_current_ua;          /* microAmp */
>>  };
>>
>>  extern struct atomic_notifier_head power_supply_notifier;
>> --
>> 2.9.3
>>