Hi,

On Fri, Apr 14, 2017 at 08:32:59PM +0200, Hans de Goede wrote:
> On the exynos4412-trats2 the max77693 is used together with a
> max17047 fuel-gauge.

exynos4412-trats2 is DT based, so it should use the method
described in Documentation/devicetree/bindings/power/supply/power_supply.txt
to describe the supply chain.

-- Sebastian

> Add supplied_to info containing "main-battery",
> so that the get_status code in the max17042_battery driver can use
> power_supply_am_i_supplied and can properly let userspace know
> if the battery is being charged or not.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
> ---
>  drivers/power/supply/max77693_charger.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/power/supply/max77693_charger.c b/drivers/power/supply/max77693_charger.c
> index 6c78884..1eeed26 100644
> --- a/drivers/power/supply/max77693_charger.c
> +++ b/drivers/power/supply/max77693_charger.c
> @@ -254,6 +254,10 @@ static int max77693_charger_get_property(struct power_supply *psy,
>  	return ret;
>  }
>  
> +static char *max77693_charger_supplied_to[] = {
> +	"main-battery",
> +};
> +
>  static const struct power_supply_desc max77693_charger_desc = {
>  	.name		= MAX77693_CHARGER_NAME,
>  	.type		= POWER_SUPPLY_TYPE_BATTERY,
> @@ -697,6 +701,8 @@ static int max77693_charger_probe(struct platform_device *pdev)
>  	if (ret)
>  		return ret;
>  
> +	psy_cfg.supplied_to = max77693_charger_supplied_to;
> +	psy_cfg.num_supplicants = ARRAY_SIZE(max77693_charger_supplied_to),
>  	psy_cfg.drv_data = chg;
>  
>  	ret = device_create_file(&pdev->dev, &dev_attr_fast_charge_timer);