Hi! On Thu, Jan 30, 2014 at 01:40:04PM -0600, delicious quinoa wrote: > On Thu, Dec 12, 2013 at 3:08 AM, Steffen Trumtrar > <s.trumtrar@xxxxxxxxxxxxxx> wrote: > > > Second: The interrupt is registered as "GIC 37", which is a real interrupt on > > the Socfpga. I would expect it to be marked as "GPIO 2xx" (or something in that > > range). The interrupt from the gpiochip itself isn't registered at all ?! > > Hi Stephen, > > Did you export the gpio lines and set the edge in sysfs? Because the > interrupts aren't allocated otherwise. > > For instance: > > root@socfpga_cyclone5:~# echo 195 > /sys/class/gpio/export > root@socfpga_cyclone5:~# echo rising > /sys/class/gpio/gpio195/edge > > Now I can see a pretty nicely named interrupt in /proc/interrupts: > > 256: 0 0 gpio-dwapb 24 gpiolib > I didn't try that and I think this behaviour is pretty uncommon. This should be fixed in the driver. I never wrote a gpiochip-driver, so I don't know what is missing, but maybe just some functioncall ?! All other drivers I came across have that entry from probing without any fiddling. Thanks, Steffen -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
