Hi Christophe, On Tue, Oct 25, 2011 at 8:58 AM, Christophe Aeschlimann <[email protected]> wrote: > Hi Ben, > > Sorry for bumping that old thread out of the ash :) > > On 11.02.2011 15:34, Ben Gardiner wrote: >> Hi Sudhakar, >> >> On Fri, Feb 11, 2011 at 6:03 AM, Rajashekhara, Sudhakar >> <[email protected]> wrote: >>> When I enable the "gpio-keys" driver I am getting the below error message >>> when kernel is booting: >>> >>> "gpio-keys gpio-keys.0: Unable to get irq number for GPIO 152, error -6" >> >> This error looks familiar to me; please excuse me if I presume too much. >> >> It looks like you may be trying to use the gpio-keys driver on an i2c >> expander. This driver requires interrupt-capable GPIOs and i2c >> expander GPIOs are not interrupt capable -- yet. The support needed >> for chained interrupts is being developed by Lennert Buytenhek as part >> of the ARM device tree support [1]. > > Do you know if that has been implemented since then ? I have not found > anything about that subject.
I'm sorry I haven't followed that activity closely enough and I haven't tested multiple interrupt controllers lately. Best Regards, Ben Gardiner --- Nanometrics Inc. http://www.nanometrics.ca _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
