Kumar Gala wrote:
I disagree. If you update your kernel you should update your device tree (thus we have .dts in the kernel tree and not somewhere else).
No. The device tree is a means to pass information from the firmware to the kernel. It is part of the firmware. That the repository of trees is in the Linux kernel for any boards which are not including the tree inside a bootwrapper is a historical accident.
Updating the dtb with the kernel just shifts the risk of incompatibility to interactions between the firmware and the dtb. The same backwards compatibility considerations when making kernel changes that depend on firmware changes should be made when making kernel changes that depend on dts changes.
-Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
