linux-kernel - Re: [PATCH 1/4] power: supply: axp20x_battery: add support for DT battery

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Message-ID: <20170608155821.n5uuobjpv2gmbl5t@earth>
Date:   Thu, 8 Jun 2017 17:58:21 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Quentin Schulz <quentin.schulz@...e-electrons.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, wens@...e.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, liam@...workimprov.net,
        thomas.petazzoni@...e-electrons.com, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 1/4] power: supply: axp20x_battery: add support for DT
 battery

Hi,

On Thu, May 11, 2017 at 03:42:17PM +0200, Quentin Schulz wrote:
> This adds support in X-Powers AXP20X and AXP22X battery driver for a
> fixed battery in DT.
> 
> It will take the minimum supported voltage by the battery as defined in
> the battery DT node and set the V_OFF register to this value, telling
> the system to shut down if the supplied power is below this value.
> 
> Signed-off-by: Quentin Schulz <quentin.schulz@...e-electrons.com>

Thanks, queued.

-- Sebastian

>  drivers/power/supply/axp20x_battery.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c
> index 5d29b2eab8fc..66f530541735 100644
> --- a/drivers/power/supply/axp20x_battery.c
> +++ b/drivers/power/supply/axp20x_battery.c
> @@ -433,6 +433,7 @@ static int axp20x_power_probe(struct platform_device *pdev)
>  {
>  	struct axp20x_batt_ps *axp20x_batt;
>  	struct power_supply_config psy_cfg = {};
> +	struct power_supply_battery_info info;
>  
>  	if (!of_device_is_available(pdev->dev.of_node))
>  		return -ENODEV;
> @@ -484,6 +485,15 @@ static int axp20x_power_probe(struct platform_device *pdev)
>  		return PTR_ERR(axp20x_batt->batt);
>  	}
>  
> +	if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) {
> +		int vmin = info.voltage_min_design_uv;
> +
> +		if (vmin > 0 && axp20x_set_voltage_min_design(axp20x_batt,
> +							      vmin))
> +			dev_err(&pdev->dev,
> +				"couldn't set voltage_min_design\n");
> +	}
> +
>  	return 0;
>  }
>  
> -- 
> 2.11.0
> 

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