On Tuesday 01 July 2014 09:44 PM, Stephen Warren wrote: > Sekhar Nori wrote at Tuesday, July 01, 2014 3:52 AM: >> Nick, >> >> I have been using your for-next branch to base my development of >> touchscreen support on TI's DRA7x EVM. With the recent updates, >> it has worked out great and once I got the configuration right, >> it was just a question of adding DT data for the platform. >> >> Now, there is one problem with Stephen's patch defaulting the irqflags >> to IRQF_TRIGGER_FALLING. The interrupt controller I am using (ARM GIC) >> does not seem to support that and the device fails to probe: > > On the Tegra systems I have, IRQF_TRIGGER_FALLING is the correct (or at > least a valid) choice. That's probably because the Atmel IRQ signal is > routed to our GPIO controller, which is also an IRQ controller, and then > "forwarded" up the chain to the GIC, with the polarity the GIC expects. > > If IRQ_TRIGGER_FALLING doesn't work everywhere, then we'll need to add > some kind of DT property to configure the polarity of the IRQ output. Yeah, I think so too. Nick, If you are going to rebase your branch, will you be able to fold in the patch in my previous e-mail? Else, I can send a more formal patch to you. Thanks, Sekhar -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
