Re: [PATCH] power: supply: max8998_charger: Correct ONLINE and add STATUS props

[Sebastian Reichel]

Hi,

On Sat, May 16, 2020 at 03:35:44PM -0700, Jonathan Bakker wrote:
> The ONLINE prop should be when the charger is present (ie able to
> charge), however, it was for when it was actually charging or not.
> Instead, add the STATUS prop to show whether charging is actually
> going on or not.
> 
> The magic numbers have been ported from a downstream kernel for the
> SGH-T959V.
> 
> Signed-off-by: Jonathan Bakker <xc-rac...@live.ca>
> ---

Thanks, queued.

-- Sebastian

>  drivers/power/supply/max8998_charger.c | 25 ++++++++++++++++++++++---
>  1 file changed, 22 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/power/supply/max8998_charger.c 
> b/drivers/power/supply/max8998_charger.c
> index 9a926c7c0f22..c26023b19f26 100644
> --- a/drivers/power/supply/max8998_charger.c
> +++ b/drivers/power/supply/max8998_charger.c
> @@ -23,6 +23,7 @@ struct max8998_battery_data {
>  static enum power_supply_property max8998_battery_props[] = {
>       POWER_SUPPLY_PROP_PRESENT, /* the presence of battery */
>       POWER_SUPPLY_PROP_ONLINE, /* charger is active or not */
> +     POWER_SUPPLY_PROP_STATUS, /* charger is charging/discharging/full */
>  };
>  
>  /* Note that the charger control is done by a current regulator "CHARGER" */
> @@ -49,10 +50,28 @@ static int max8998_battery_get_property(struct 
> power_supply *psy,
>               ret = max8998_read_reg(i2c, MAX8998_REG_STATUS2, &reg);
>               if (ret)
>                       return ret;
> -             if (reg & (1 << 3))
> -                     val->intval = 0;
> -             else
> +
> +             if (reg & (1 << 5))
>                       val->intval = 1;
> +             else
> +                     val->intval = 0;
> +
> +             break;
> +     case POWER_SUPPLY_PROP_STATUS:
> +             ret = max8998_read_reg(i2c, MAX8998_REG_STATUS2, &reg);
> +             if (ret)
> +                     return ret;
> +
> +             if (!(reg & (1 << 5))) {
> +                     val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
> +             } else {
> +                     if (reg & (1 << 6))
> +                             val->intval = POWER_SUPPLY_STATUS_FULL;
> +                     else if (reg & (1 << 3))
> +                             val->intval = POWER_SUPPLY_STATUS_CHARGING;
> +                     else
> +                             val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
> +             }
>               break;
>       default:
>               return -EINVAL;
> -- 
> 2.20.1
> 

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