On Wed, Nov 18, 2015 at 02:04:24PM +0100, François Revol wrote: > On 17/11/2015 23:14, Rob Herring wrote: > > On Mon, Nov 16, 2015 at 2:38 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > >> > >> > >> On 15/11/2015 03:07, Rob Herring wrote: > >>> We generally don't want DT docs to depend on other kernel documentation. > >> > >> DT docs do not contain a copy of the data sheets, either. There is no > >> reason to say how to use the device (and even then, only doing so > >> partially) in the DT docs. > > > > The difference is datasheets apply to all OS's, kernel documentation > > does not. In theory at least this could be used for other OS's, right? > > Would be nice indeed, as it's part of their intended purpose. > > For now we have to shoehorn things into linux-only stuff (like initrd) > because well, nobody cares enough about NetBSD to compile U-Boot with > its internal API, so let alone adding custom Haiku code. > > And of course, for things linux doesn't care about (like framebuffer > description) then we're stuck trying to guess where it's at and writing > drivers for our bootloader. > > So if at least people were considering they aren't the only users of > this, that'd make life better for everyone. > > > Perhaps QEMU is the right place to thoroughly describe this and DT and > > sysfs docs can refer to it. > > The brilliant idea of FDT was that we could have a canonical source and > blob for it where people could send patches, but of course Linux and BSD > freaks disagreed, so you now find Linux-flavoured DTs for rPi and other > things, as well as BSD versions. > > Please, at least get the binding documentation for this unique and > usable for everyone! That would be 'docs/specs/fw_cfg.txt' in the QEMU source tree. I will avoid cut'n'pasting anything from there into either the proposed Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg (leaving only the sysfs specific bits in there), and also remove any redundant bits from Documentation/devicetree/bindings/arm/fw-cfg.txt. I'm inclined to add (in v5) a mention of 'qemu:docs/specs/fw_cfg.txt' to both the proposed fw_cfg sysfs doc file, and to the existing fw_cfg arm/dt node doc file, unless I get strong objections against doing so... :) Thanks, --Gabriel -- 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
