Em Mon, 29 Oct 2012 11:25:38 +0000 Simon Farnsworth <simon.farnsworth@xxxxxxxxxxxx> escreveu: > On Monday 22 October 2012 12:50:11 Simon Farnsworth wrote: > > The SAA7134 appears to have trouble buffering more than one line of video > > when doing DMA. Rather than try to fix the driver to cope (as has been done > > by Andy Walls for the cx18 driver), put in a pm_qos_request to limit deep > > sleep exit latencies. > > > > The visible effect of not having this is that seemingly random lines are > > only partly transferred - if you feed in a static image, you see a portion > > of the image "flicker" into place. > > > > Signed-off-by: Simon Farnsworth <simon.farnsworth@xxxxxxxxxxxx> > > Hello Mauro, > > I've just noticed that I forgot to CC you in on this patch I sent last week - > Patchwork grabbed it at https://patchwork.kernel.org/patch/1625311/ but if you > want me to resend it so that you've got it in a mailbox for consideration, > just let me know. I prefer if you don't c/c me on that ;) Patchwork is the main source that I use on my patch reviews. Btw, I saw your patch yesterday (and skipped it, for now), as I never played with those pm QoS stuff before, nor I ever noticed anything like what you reported on saa7134 (but I can't even remember the last time I tested something on a saa7134 board ;) - so, it can be some new bug). So, I'll postpone its review to when I have some time to actually test it especially as the same issue might also be happening on other drivers. Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
