On Fri, 23 Feb 2018 11:07:17 +0000 Bean Huo <beanhuo@xxxxxxxxxxx> wrote: > Boris, > thanks for the review. > > >> + - dual-die-stack: boolean to enable support for the devices with the > >> + two dies in stack. > > >How about making that more future proof and adding a property that > >directly contains the number of dies (num-dies)? > > Exactly, I also thought here should add a property, through which it can be compatible > with all kinds of PNOR for the future more dies stacked device. > But currently, it doesn't exist PNOR device with more than two dies, and we > have no idea about 4/6 dies stacked device operation sequence. so I simply add a boolean > entry and try to only enable dual-die stacked PNOR firstly. Actually, I think it's better to think about future evolutions now than adding a new property every time a vendor decides to add more dies (I guess the number of dies will always be a power-of-2). > > Maybe I can try to do that in next version patch. the software implementation is so flexible. > > >> > >> For JEDEC compatible devices, the following additional properties > >> are defined: > -- Boris Brezillon, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com -- 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