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SubjectRe: [PATCH 02/14] POWER: bq27x00: Improve temperature precession
On Sun, Feb 06, 2011 at 01:47:59AM +0100, Lars-Peter Clausen wrote:
> This patch improves the precession of the temperature property of the bq27x00
> driver.
> By dividing before multiplying the current code effectively cuts of the last
> decimal digit. This patch fixes it by multiplying before dividing.
>
> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
> ---
> drivers/power/bq27x00_battery.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
> index bb043f9..4f74659 100644
> --- a/drivers/power/bq27x00_battery.c
> +++ b/drivers/power/bq27x00_battery.c
> @@ -109,7 +109,7 @@ static int bq27x00_battery_temperature(struct bq27x00_device_info *di)
> if (di->chip == BQ27500)
> return temp - 2731;
> else
> - return ((temp >> 2) - 273) * 10;
> + return ((temp * 5) - 5463) / 2;
> }
>
> /*
> --
> 1.7.2.3

Acked-by: Rodolfo Giometti <giometti@linux.it>

--

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Linux Device Driver giometti@linux.it
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UNIX programming skype: rodolfo.giometti
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