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From: Anton Vorontsov <anton@enomsg.org>
To: Jonghwa Lee <jonghwa3.lee@samsung.com>
Cc: linux-pm@vger.kernel.org, dwmw2@infradead.org,
	myungjoo.ham@samsung.com, cw00.choi@samsung.com
Subject: Re: [PATCH] battery: max17042: Fix temperature unit to milli centigrade.
Date: Fri, 25 Oct 2013 16:17:20 -0700	[thread overview]
Message-ID: <20131025231720.GB9015@teo> (raw)
In-Reply-To: <1382676798-27835-1-git-send-email-jonghwa3.lee@samsung.com>

On Fri, Oct 25, 2013 at 01:53:18PM +0900, Jonghwa Lee wrote:
> Standard temp node represents temperature of power supply class
> in milli centigrade. So fix max17042 fuel gauge driver to follow
> the standard. (deci-centigrade --> milli-centigrade)

Maybe I am confused, but the doc says:

 * All voltages, currents, charges, energies, time and temperatures in uV,      
 * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise          
 * stated

So, the current code seems to be correct.

Thanks,

Anton

> Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
> ---
>  drivers/power/max17042_battery.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
> index d664ef5..892ecfc 100644
> --- a/drivers/power/max17042_battery.c
> +++ b/drivers/power/max17042_battery.c
> @@ -220,9 +220,9 @@ static int max17042_get_property(struct power_supply *psy,
>  			val->intval = (0x7fff & ~val->intval) + 1;
>  			val->intval *= -1;
>  		}
> -		/* The value is converted into deci-centigrade scale */
> +		/* The value is converted into milli-centigrade scale */
>  		/* Units of LSB = 1 / 256 degree Celsius */
> -		val->intval = val->intval * 10 / 256;
> +		val->intval = val->intval * 1000 / 256;
>  		break;
>  	case POWER_SUPPLY_PROP_CURRENT_NOW:
>  		if (chip->pdata->enable_current_sense) {
> -- 
> 1.7.9.5

  reply	other threads:[~2013-10-25 23:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-25  4:53 [PATCH] battery: max17042: Fix temperature unit to milli centigrade Jonghwa Lee
2013-10-25 23:17 ` Anton Vorontsov [this message]
2013-10-28  2:00   ` jonghwa3.lee
2013-10-28  5:27     ` [PATCH] power_supply: Fix documentation for TEMP_*ALERT* properties Anton Vorontsov
2013-10-28  6:22       ` jonghwa3.lee
2013-10-28  6:43         ` Anton Vorontsov
2013-10-28 17:20       ` Mark A. Greer
2013-10-29  3:13         ` Anton Vorontsov

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