From: Mark Fortescue <mark@xxxxxxxxxxxxxxxxxx> Date: Sat, 21 Jul 2007 18:49:46 +0100 (BST) > __ndelay and __udelay have not been delaying >= specified time. > The problem with __ndelay has been tacked down to the rounding of the > multiplier constant. By changing this, delays > app 18us are correctly > calculated. > The problem with __udelay has also been tracked down to rounding issues. > Changing the multiplier constant (to match that used in sparc64) corrects > for large delays and adding in a rounding constant corrects for trunctaion > errors in the claculations for short delays. > Many short delays will return without looping. This is not an error as there > is the fixed delay of doing all the maths to calculate the loop count. > > Signed-off-by: Mark Fortescue <mark@xxxxxxxxxxxxxxxxxx> Thanks for investigating this Mark, I'll merge this in after I look over it a bit. - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
