> Because dtc will generate phandles automatically when you reference the > node with the & operator.
Yes the same statement I found in dts-bindings for gpio txt, sorry I missed it somehow ... > Do you want your changes to ever make it into the upstream kernel? Yes I would like to do that ... but the reason I asked is as it is my first try so I am thinking that I will edit the same file and do it in the same way ofcourse I will follow for device node gpio-controller the new apporach and later if it works then I will create new dts with upstream Linux base ... Now I have created the mpc8313erdb.dts with gpio-controller device node. I would like to ask that now I should compile it with dtc and generate dtb and I should load this dtb on board/target, Right ? ? ? please correct me if I am wrong ... Also is it possible to compile device tree on Linux host and genreate dtb for powerpc ? ? ? If yes, then how ? ? ? please let me know ... thanks ... Before I tried to generate virtual irq using irq_create_mapping and I got the same number as hw_irq_no i.e. 74 as virtual irq. Also the entry was made in proc/interrupts and trigger was 8 (Level). But when I tried to interrupt and the handler was never called ? ? ? Was it because of gpio device node missing in device tree ? ? ? please let me know ... thanks ... Kindly please acknowledge ... thank you ... Kind Regards, Vijay Nikam On 2/18/09, Scott Wood <scottw...@freescale.com> wrote: > On Wed, Feb 18, 2009 at 05:31:34PM +0530, Vijay Nikam wrote: > > > Don't specify this explicitly. Please base new development off of the > > > device tree that is in upstream Linux, not the very old tree in your BSP. > > > > May I know the reason why I should not specify it explicitly ? ? ? > > Because dtc will generate phandles automatically when you reference the > node with the & operator. > > > Also what would be the problem if I do in the same way as it is given > > in BSP mpc8313erdb.dts ? ? ? > > Do you want your changes to ever make it into the upstream kernel? > > > And should I use gpio-controller as a gpio device node ? ? ? > > Yes, the node should label itself as a gpio controller. > > -Scott > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
