On Wed, May 21, 2014 at 1:54 AM, Feng Kan <fkan@xxxxxxx> wrote: > I see each bank as separate gpio chip. It is a simple way to > abstract the banks since they can operate independently. I think they should also be separate devices, and separate nodes in the device tree. > It also > provided me a way to fix the sysfs gpio base number, regardless if > a particular bank node is pulled out. The GPIO sysfs is unpredictable for this and many other reasons and should not be relied upon. > This is also done in similar way > in some other gpio drivers such as the dwapb gpio driver. I think the dwapb has it's registers mingled while your banks seem to be separate chunks. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html