Re: [PATCH v3 3/5] iio: common: ssp_sensors: Add sensorhub iio commons

[Hartmut Knaack]

Karol Wrona schrieb am 05.12.2014 um 20:54:
> This patch adds common library for sensorhub iio drivers.
> 
Looks good to me, overall. Just one very small nitpick.
> Change-Id: I1038cb31c051f7e8ffde696a4121518daa5af081
> Signed-off-by: Karol Wrona <k.wrona@xxxxxxxxxxx>
> Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> ---
>  drivers/iio/common/ssp_sensors/ssp_iio.c        |   82 +++++++++++++++++++++++
>  drivers/iio/common/ssp_sensors/ssp_iio_sensor.h |   56 ++++++++++++++++
>  2 files changed, 138 insertions(+)
>  create mode 100644 drivers/iio/common/ssp_sensors/ssp_iio.c
>  create mode 100644 drivers/iio/common/ssp_sensors/ssp_iio_sensor.h
> 

> +/* Converts time in ms to frequency */
> +static inline void ssp_convert_to_freq(u32 time, int *integer_part,
> +				       int *fractional)
> +{
> +	if (time == 0) {
> +		*fractional = 0;
> +		*integer_part = 0;
> +		return;
> +	}
> +
> +	*integer_part = SSP_DIVIDEND / time;
> +	*fractional = do_div(*integer_part, SSP_DIVISOR);
> +}
> +
> +/* Converts frequency to time in ms*/
Missing whitespace at end of comment.
> +static inline int ssp_convert_to_time(int integer_part, int fractional)
> +{
> +	u64 value;
> +
> +	value = integer_part * SSP_DIVISOR + fractional;
> +	if (value == 0)
> +		return 0;
> +
> +	return div_u64(SSP_DIVIDEND, value);
> +}
> +#endif /* __SSP_IIO_SENSOR_H__ */
> 

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