Hi,

On Tue, Mar 21, 2017 at 03:09:17PM -0700, Liam Breck wrote:
> From: Liam Breck <kernel@networkimprov.net>
> 
> Battery chargers use precharge_current_ua and endcharge_current_ua
> at the beginning and end of a charging cycle. These values are set
> according to battery capacity.
> 
> Depends-on: https://patchwork.kernel.org/patch/9633613/
> Signed-off-by: Liam Breck <kernel@networkimprov.net>
> ---
>  drivers/power/supply/power_supply_core.c | 6 ++++++
>  include/linux/power_supply.h             | 5 +++++
>  2 files changed, 11 insertions(+)
> 
> diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
> index 61e20b1..17088c5 100644
> --- a/drivers/power/supply/power_supply_core.c
> +++ b/drivers/power/supply/power_supply_core.c
> @@ -498,6 +498,8 @@ 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->precharge_current_ua   = -EINVAL;
> +	info->endcharge_current_ua   = -EINVAL;
>  
>  	if (!psy->of_node) {
>  		dev_warn(&psy->dev, "%s currently only supports devicetree\n",
> @@ -527,6 +529,10 @@ 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, "precharge-current-microamp",
> +			     &info->precharge_current_ua);
> +	of_property_read_u32(battery_np, "endcharge-current-microamp",
> +			     &info->endcharge_current_ua);
>  
>  	return 0;
>  }
> diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
> index e84f1d3..864214c 100644
> --- a/include/linux/power_supply.h
> +++ b/include/linux/power_supply.h
> @@ -152,6 +152,9 @@ enum power_supply_property {
>  	POWER_SUPPLY_PROP_MODEL_NAME,
>  	POWER_SUPPLY_PROP_MANUFACTURER,
>  	POWER_SUPPLY_PROP_SERIAL_NUMBER,
> +/* where to place these? inserting above causes sysfs errors */
> +	POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
> +	POWER_SUPPLY_PROP_ENDCHARGE_CURRENT,
>  };

Ack on adding standard property for charge current of pre & end
phase. Please do this in its own patch. This requires modification
of a few places, see for example the following commit adding
CHARGE_CURRENT_MAX: 2815b786c3bb86fff97f1f6e2f0874903ff2339b

>  enum power_supply_type {
> @@ -301,6 +304,8 @@ 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 precharge_current_ua;	/* microAmps */
> +	int endcharge_current_ua;       /* microAmps */
>  };
>  
>  extern struct atomic_notifier_head power_supply_notifier;
> -- 
> 2.9.3
>