linux-kernel - Re: [PATCHv1 04/11] power: supply: generic-adc-battery: fix unit scaling

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Message-ID: <e07c2fbf-6432-0065-3e68-aeac2ee51799@gmail.com>
Date:   Mon, 13 Mar 2023 09:52:09 +0200
From:   Matti Vaittinen <mazziesaccount@...il.com>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCHv1 04/11] power: supply: generic-adc-battery: fix unit
 scaling

On 3/10/23 00:50, Sebastian Reichel wrote:
> power-supply properties are reported in µV, µA and µW.
> The IIO API provides mV, mA, mW, so the values need to
> be multiplied by 1000.
> 
> Signed-off-by: Sebastian Reichel <sre@...nel.org>

As Linus wrote, Fixes-tag would be good. With that remark:
Reviewed-by: Matti Vaittinen <mazziesaccount@...il.com>

> ---
>   drivers/power/supply/generic-adc-battery.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/power/supply/generic-adc-battery.c b/drivers/power/supply/generic-adc-battery.c
> index 917bd2a6cc52..535972a332b3 100644
> --- a/drivers/power/supply/generic-adc-battery.c
> +++ b/drivers/power/supply/generic-adc-battery.c
> @@ -136,6 +136,9 @@ static int read_channel(struct gab *adc_bat, enum power_supply_property psp,
>   			result);
>   	if (ret < 0)
>   		pr_err("read channel error\n");
> +	else
> +		*result *= 1000;
> +
>   	return ret;
>   }
>   

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

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