+Luotao Fu On Sat, Nov 03, 2012 at 00:25:53, Stephen Warren wrote: > On 11/02/2012 05:03 AM, AnilKumar Ch wrote: > > Add device tree support to matrix keypad driver and usage details > > are added to device tree documentation. Driver was tested on AM335x > > EVM. > > > +++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt > > > +Optional Properties: > > > +- clustered-irq: have clustered irq number, that is needed if the irq > > + is a combined irq source for the whole matix keypad. > > + This is useful if rows and columns of the keypad are > > + connected to a GPIO expander. > > +- clustered-irq-flags: clustered irq flags > > Shouldn't the GPIO expander itself be an IRQ controller too? What are > the clustered-irq-flags values?
These are clustered-irq corresponding flags whether the IRQ is IRQF_TRIGGER_RISING (or) IRQF_TRIGGER_FALLING (or) both and etc. I have given the pointers based on this patch https://lkml.org/lkml/2010/5/27/45 I am not able to provide the further details because my hardware is different. Luotao Fu have added the clustered-irq support he might have some pointers here. Hi Luotao Fu, Do you have any comments here? Thanks AnilKumar _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss
