> Date: Fri, 4 May 2018 20:56:07 +0300 > From: Artturi Alm <artturi....@gmail.com> > > Hi, > > currently, I don't see how it is possible to write generic > i2c-parent-controller-independent attachment glue in dev/fdt/, > ie. for drivers in dev/i2c. The usual way how they are written with > doesn't work as the devices in dev/i2c attach "at i2c" already. > > visa@ just commited something in the direction i wish you would > continue, and that would be adding "needs-flag" to > > dev/ofw/files.ofw: > 3: file dev/ofw/fdt.c fdt > -> > 3: file dev/ofw/fdt.c fdt needs-flag > > which would allow writing cleaner glue with less pollution, imo.. > > I have some examples, if this isn't totally out of the question, > of which i think most wanted might be for maxrtc(4), as many boards > come with lacking RTC/battery and maxrtc(4) is a cheap&easy fix for it.
You completely fail to explain what the problem is. There are several i2c drivers for RTC chips in the tree that work on armv7 and/or arm64 and they are completely fdt-agnostic. See for example dev/i2c/isl1208.c.
