On Tue, Apr 3, 2012 at 3:17 PM, Will Deacon <will.deacon@xxxxxxx> wrote: > On Tue, Apr 03, 2012 at 10:42:30AM +0100, Shilimkar, Santosh wrote: >> On Tue, Apr 3, 2012 at 2:55 PM, Will Deacon <will.deacon@xxxxxxx> wrote: >> > Did you ever get to the bottom of this? This change really is required in >> > order to generate PMU interrupts with the CTI and I don't know of any >> > alternative to the above. >> > >> > Any suggestions? >> > >> Sorry I lost track of this one. There is one relevant patch in Kevin's queue >> for 3.4/fixes. [1] which I generated for perf time stamp issue. > > Thanks, I'll take a look. > >> Can you try that patch and see if it helps the CTI issue as well ? There >> is an outside chance that it might help. If it doesn't, we should commit >> Ming Lei patch. > > It seems that they're both needed to get reliable PMU operation. Without the > CLKDM_CAN_SWSUP fix, no interrupts are generated at all. Without the patch > below ([1]), it seems that we don't generate enough. So it looks like we > need them both. > I see. Can you please confirm if it is still the case with [1]. If yes then am nou sure how to proceed. because permanently setting EMU CD to CLKDM_CAN_SWSUP will break PM. >> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2012-March/089679.html > -- 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
