28.04.2015 11:57, Jacek Anaszewski пишет: > Hi Stas, > > Have you tested it? Of course I did. Works with gpio driver and provides up to 10usec precision on armada-xp board. This is 1000 times better than without my patch - the precision was 10ms (jiffy). > I tried it with Samsung M0 board and > my leds-aat1290 driver. It didn't work well. And for small delay > intervals it will not have a chance to work reliably with all drivers, > especially the ones which use mutex in their brightness_set op, > since mutex can sleep. OK, I can remove the nsec resolution. I added it for the future, it doesn't work for me either, but hrtimer has an API for it, so I thought it may work on another hw. I don't see why it can't stay, but if it bothers you that much, I'll remove it. > I am afraid that we have to stay with what we have currently. This is a counter-productive conclusion. My patch does 1000 times precision improvement with gpio driver. If you only want nsec to be removed as it doesn't work - that's fine with me. -- To unsubscribe from this list: send the line "unsubscribe linux-leds" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
