On Fri, Mar 18, 2011 at 11:27:00AM -0700, Kevin Hilman wrote: > "G, Manjunath Kondaiah" <manjugk@xxxxxx> writes: > > > On Thu, Mar 17, 2011 at 02:29:18PM -0700, Kevin Hilman wrote: > >> "G, Manjunath Kondaiah" <manjugk@xxxxxx> writes: > >> > >> > Patch series to support mstandby mode handling and enabling runtime PM > >> > support for DMA driver. > >> > >> I still have the same problems as with the previous revision: > >> > >> > >> This is still not runtime-suspending when I use my DMA test in linking > >> mode. > >> > >> If I put a large enough period between transfers, it should autosuspend > >> during transfers. It seems to do auto-suspend and resume once, but then > >> it never suspends again. > >> > >> I tested with my dmatest module[1], and loaded with: > >> > >> # insmod ./dmatest.ko linking=1 forever=1 forever_period=1024 > >> > >> Not only does it not auto-suspend between transfers (which I expected), > >> it also doesn't suspend after removing the module which stops all active > >> channels. > > > > Tested again on 2.6.38 with patches pulled from patchworks and for me, > > the same test case seems to be passing. Here is the log: > > http://pastebin.com/ccEmTZS5 > > > > The above test case is executed on blaze and same result is observed > > with other OMAP2+ boards also. > > Can you try again with dmatest loaded without 'debug=1' > > What's strange is that I noticed it worked with debug=1 also, but didn't > with debug disabled. > > I *think* it's a bug in my test, which I fixed, but can you try the > above before pulling a new version of my test? done. without pulling latest dmatest changes, your observation is correct. With latest changes, it is working fine. -Manjunath -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
