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

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Message-ID: <CAKvHMgSPneriwY+HDHVraB3cdWZYx__6LZrExPQJanYNs2aBSA@mail.gmail.com>
Date:   Fri, 26 May 2017 14:22:14 -0700
From:   Liam Breck <liam@...workimprov.net>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     Sebastian Reichel <sre@...nel.org>, Rob Herring <robh@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, 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 Enric,

I'll also incorporate these changes into v14 of my patchset. (See my prev msg.)


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
>