linux-kernel - Re: [PATCH v4 7/8] power: supply: rt5033_battery: Adopt status property from charger

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Date:   Mon, 8 May 2023 13:35:18 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Jakob Hauser <jahau@...ketmail.com>
Cc:     Lee Jones <lee@...nel.org>, Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Beomho Seo <beomho.seo@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Raymond Hackley <raymondhackley@...tonmail.com>,
        Pavel Machek <pavel@....cz>, Axel Lin <axel.lin@...ics.com>,
        ChiYuan Huang <cy_huang@...htek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Henrik Grimler <henrik@...mler.se>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH v4 7/8] power: supply: rt5033_battery: Adopt status
 property from charger

Hi,

On Sat, May 06, 2023 at 05:54:34PM +0200, Jakob Hauser wrote:
> The rt5033-battery fuelgauge can't get a status by itself. The rt5033-charger
> can, let's get this value.
> 
> Tested-by: Raymond Hackley <raymondhackley@...tonmail.com>
> Signed-off-by: Jakob Hauser <jahau@...ketmail.com>
> ---
>  drivers/power/supply/rt5033_battery.c | 24 ++++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/drivers/power/supply/rt5033_battery.c b/drivers/power/supply/rt5033_battery.c
> index 5c04cf305219..a6520716d813 100644
> --- a/drivers/power/supply/rt5033_battery.c
> +++ b/drivers/power/supply/rt5033_battery.c
> @@ -12,6 +12,26 @@
>  #include <linux/mfd/rt5033-private.h>
>  #include <linux/mfd/rt5033.h>
>  
> +static int rt5033_battery_get_status(struct i2c_client *client)
> +{
> +	struct power_supply *charger;
> +	union power_supply_propval val;
> +	int ret;
> +
> +	charger = power_supply_get_by_name("rt5033-charger");
> +	if (!charger)
> +		return POWER_SUPPLY_STATUS_UNKNOWN;
> +
> +	ret = power_supply_get_property(charger, POWER_SUPPLY_PROP_STATUS, &val);
> +	if (ret) {
> +		power_supply_put(charger);
> +		return POWER_SUPPLY_STATUS_UNKNOWN;
> +	}

struct rt5033_battery *battery = i2c_get_clientdata(client);
ret = power_supply_get_property_from_supplier(battery->psy, POWER_SUPPLY_PROP_STATUS, &val);
if (ret)
    val.intval = POWER_SUPPLY_STATUS_UNKNOWN;

> +
> +	power_supply_put(charger);
> +	return val.intval;
> +}
> +
>  static int rt5033_battery_get_capacity(struct i2c_client *client)
>  {
>  	struct rt5033_battery *battery = i2c_get_clientdata(client);
> @@ -84,6 +104,9 @@ static int rt5033_battery_get_property(struct power_supply *psy,
>  	case POWER_SUPPLY_PROP_CAPACITY:
>  		val->intval = rt5033_battery_get_capacity(battery->client);
>  		break;
> +	case POWER_SUPPLY_PROP_STATUS:
> +		val->intval = rt5033_battery_get_status(battery->client);
> +		break;
>  	default:
>  		return -EINVAL;
>  	}
> @@ -96,6 +119,7 @@ static enum power_supply_property rt5033_battery_props[] = {
>  	POWER_SUPPLY_PROP_VOLTAGE_OCV,
>  	POWER_SUPPLY_PROP_PRESENT,
>  	POWER_SUPPLY_PROP_CAPACITY,
> +	POWER_SUPPLY_PROP_STATUS,
>  };
>  
>  static const struct regmap_config rt5033_battery_regmap_config = {
> -- 
> 2.39.2
> 

Otherwise LGTM.

-- Sebastian

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