> -----Original Message----- > From: David Gibson [mailto:david@xxxxxxxxxxxxxxxxxxxxx] > Sent: Wednesday, April 04, 2018 6:31 PM > To: Rob Herring > Cc: Yuan, Linyu (NSB - CN/Shanghai); devicetree-spec@xxxxxxxxxxxxxxx; Jon > Loeliger; Devicetree Compiler > Subject: Re: integer lost format from dtb to dts > > On Tue, Apr 03, 2018 at 01:49:46PM -0500, Rob Herring wrote: > > On Mon, Apr 2, 2018 at 4:15 AM, Yuan, Linyu (NSB - CN/Shanghai) > > <linyu.yuan@xxxxxxxxxxxxxxx> wrote: > > > Hi all, > > > > > > When use dtc to compile dtb to dts, always lost integer format, > > > For example, clock frequency, normally it should not print as hexadecimal, > other issue from my view is integer lower than 255, normally should not print > as hexadecimal too. > > > > > > Any good method to solve this issue ? > > > > No. The dtb format doesn't have type information, nor formatting > > information. > > Right. In the dtb format the properties are just bytestrings. Like > any decompilation process the results won't exactly match the original > input. > > > Adding this is certainly desired, > > That's not really true. We're looking at adding temporary type > information so that -I dts -O dts will give a better approximation to > the input, but that's just types, not formatting down to the level of > decimal vs. hex representation. I don't think there's any reason to > do that or any plans to do so. I do found some colleague in our company use coverted dts from dtb directly, which is not good. > > Plus that's talking about adding type information as a temporary, and > possibly translating it into a yaml based format. Actually putting > the type information into the dtb is a different matter entirely. > > > but no one has come up > > with a way to add the information in a backwards compatible way. > > Adding type information to the dtb really doesn't make sense, the > format simply isn't designed for it. Adding type information > essentially means creating an entirely new device information format. > > -- > David Gibson | I'll have my music baroque, and my code > david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ > _other_ > | _way_ _around_! > http://www.ozlabs.org/~dgibson -- To unsubscribe from this list: send the line "unsubscribe devicetree-compiler" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
