On Sat, Nov 27, 2021 at 11:28:05AM +0200, Oskari Lemmelä wrote: > Hi, > > On 25.11.2021 3.06, Daniel Golle wrote: > > Import patchset allowing loading and applying device tree overlays at > > run-time via configfs. > > > > This will allow for packaging DTOs for hardware add-ons such as the > > various HATs (Hardware Attached on Top) common for SBCs. > > A new kernel config option CONFIG_OF_CONFIGFS is introduced and some > > additional sysfs attributes are added in case CONFIG_OF_OVERLAY is > > enabled. > > Is this something that did not get accepted by upstream linux? > Those patches seem to be almost 8 years old.
I didn't investigate the full history of that patchset, I just found it to be the default and only way available to modify DT from user-space (and hence useful for SBC targets). Quite a few trees on git.kernel.org come with that patch on top and when looking for DT overlay documentation, the docs assume you got that patch applied [1], [2]... [1]: https://elinux.org/R-Car/DT-Overlays [2]: https://www.96boards.org/documentation/consumer/dragonboard/dragonboard410c/guides/dt-overlays.md.html#3-load-overlays-dynamically _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
