On Mon, Nov 16, 2020 at 10:06 PM Mark Brown <broo...@kernel.org> wrote: > On Wed, Nov 11, 2020 at 02:36:07PM +0100, Linus Walleij wrote:
> > I don't know if we ever formalized it, there is nowadays a rule akin to > > > "if a property can be determined from the compatible-string, and if the > > compatible-string is identifying the variant of the electronic component, > > then do not add this property to the device tree description. Just > > deduce it from the compatible-string, assign it with code to the device > > model of the operating system and handle it inside the operating system." > > > I think this, while clear and intuitive, wasn't at all clear and intuitive > > in > > the recent past. > > I think the main push in the other direction has always been people who > want to not have to write a driver at all and put absolutely everything > into DT which has scaling issues :/ What I can't understand is what gave them that idea. This thing looks like a dream to these people for example: https://gist.github.com/Minecrell/56c2b20118ba00a9723f0785301bc5ec#file-dsi_panel_s6e88a0_ams452ef01_qhd_octa_video-dtsi And it looks like a nightmare to me. (There is even a tool to convert this description into a proper display driver now.) It just seems to be one of those golden hammer things: everything start to look like nails. Yours, Linus Walleij
