:: Re: [maemo-leste] [PATCH] power: su…
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Author: Sebastian Reichel
Date:  
To: Sicelo A. Mhlongo
CC: linux-pm, maemo-leste, pali
Subject: Re: [maemo-leste] [PATCH] power: supply: bq2415x_charger: report online status
Hi,

On Mon, Feb 26, 2024 at 09:44:32PM +0200, Sicelo A. Mhlongo wrote:
> Provide the Online property. This chip does not have specific flags to
> indicate the presence of an input voltage, but this can be inferred from
> the reported charging status.


The datasheet suggests, that you can get the status from the fault
bits:

011 - Poor input source or VBUS < UVLO

Greetings,

-- Sebastian

>
> Signed-off-by: Sicelo A. Mhlongo <absicsz@???>
> ---
> drivers/power/supply/bq2415x_charger.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/power/supply/bq2415x_charger.c b/drivers/power/supply/bq2415x_charger.c
> index 6a4798a62588..5b47a1d0a51a 100644
> --- a/drivers/power/supply/bq2415x_charger.c
> +++ b/drivers/power/supply/bq2415x_charger.c
> @@ -991,6 +991,7 @@ static enum power_supply_property bq2415x_power_supply_props[] = {
>      /* TODO: maybe add more power supply properties */
>      POWER_SUPPLY_PROP_STATUS,
>      POWER_SUPPLY_PROP_MODEL_NAME,
> +    POWER_SUPPLY_PROP_ONLINE,
>  };

>
>  static int bq2415x_power_supply_get_property(struct power_supply *psy,
> @@ -1017,6 +1018,14 @@ static int bq2415x_power_supply_get_property(struct power_supply *psy,
>      case POWER_SUPPLY_PROP_MODEL_NAME:
>          val->strval = bq->model;
>          break;
> +    case POWER_SUPPLY_PROP_ONLINE:
> +        ret = bq2415x_exec_command(bq, BQ2415X_CHARGE_STATUS);
> +        /* Charger is Online when Charging or Full are reported. It is
> +         * also likely online for the Unknown/Fault state too, but
> +         * there is no way to be absolutely sure.
> +         */
> +        val->intval = (ret == 1 || ret == 2);
> +        break;
>      default:
>          return -EINVAL;
>      }
> -- 
> 2.43.0

>