On Thursday 19 July 2012, Tony Prisk wrote: > I have no issue with that. > > I am mainly concerned with the Wondermedia products at the moment. > > Adding device tree support for WM8505 (and WM8650) is my main goal as the > WM8650 > currently isn't supported and trying to get another board file added seems > unlikely with > everything moving to device tree. The VT8500 requires additional/different > patches and > as I don't have a vt8500 I can't test them. > > It does raise the question of applying 'wmt, prizm-pmc' to the vt8500 though. > While it's > fine for the restart patch I submitted, the vt8500 registers are the same but > the bit-fields > are different and therefore not entirely compatible with 'prizm-pmc'. > When it comes to other PMC-related features, in particular the clocks, the > VT8500 is quite > different in its bit-fields. > > The vt8500 isn't technically in the Prizm family, as that is Wondermedia's > name for the SoC's. >
My point is that for each peripheral, we should decide separately what the most descriptive name for it is. If the pmc is common for all wmt prizm chips, then using the "wmt,prizm-pmc" string makes sense, and vt8500 can use "via,vt8500-pmc" or something like that. However for stuff like the rtc that appears to be unchanged between them, I would use the compatible string of the oldest known chip using it, so even a wmt8650 should just claim compatibility with vt8500 there and list both "wmt,wm8650-rtc" and "via,vt8500-rtc" there. Arnd _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss