Hi Vaibhav, On Tue, Nov 08, 2011 at 20:37:17, Bedia, Vaibhav wrote: > On Tue, Nov 08, 2011 at 20:13:26, Manjunathappa, Prakash wrote: > > In a system scenario other modules were using eventq1 and McASP was > > using eventq 0. But fix in 48519f0ae03bc7e86b3dc93e56f1334d53803770 for > > driver to pick eventq specified via platform data leads to starvation > > issue on audio side because other module also uses same queue(EVENTQ_1). > > Patch fixes the issue by changing McASP edma queue to EVENTQ_0 because > > it is the eventq audio was using before fix in the above mentioned commit > > ID. > > > > The commit you indicated doesn't seem to have the changed the eventq for > DA850. > Is the patch description accurate?
I will update description with below and send out version2. Since there was bug in the audio driver, it was not picking the eventq specified(EVENTQ_1) via platform data and was using EVENTQ_0. And in system scenario other modules(say video) were using EVENTQ_1. 48519f0ae03bc7e86b3dc93e56f1334d53803770 fixes the bug in driver to pick specified eventq via platform data. As a result starvation issue is observed on audio side when audio/video uses same eventq for transfers. Patch fixes the issue by changing eventq number to EVENTQ_0 for audio. Thanks, Prakash > > Regards, > Vaibhav > _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
