On Thursday 06 April 2017 09:54 PM, Thierry Reding wrote:
> * PGP Signed by an unknown key
>
> On Thu, Apr 06, 2017 at 07:50:59PM +0530, Laxman Dewangan wrote:
>> The rate of the PWM calculated as follows:
>> 	hz = NSEC_PER_SEC / period_ns;
>>   	rate = (rate + (hz / 2)) / hz;
>>
>> This has the precision loss in lower PWM rate.
>> Changing this to have more precision as:
>> 	hz = DIV_ROUND_CLOSE(NSEC_PER_SEC * 100, period_ns);
>> 	rate = DIV_ROUND_CLOSE(rate * 100, hz)
> DIV_ROUND_CLOSEST(). And I much prefer this to the actual code below. I
> don't think it's necessary to have a local variable for the precision.
Do you suggest to use DIV_ROUND_CLOSEST() instead of 
DIV_ROUND_CLOSEST_ULL()?

This is ULL division and so we need to use this one.

Or am I missing something