David et al., I've mentioned before the problem posed for overlays by boolean properties, i.e. that a boolean property that is "true" in a base DTB cannot be made "false" by an overlay because doing so requires that the property be deleted. A solution for this problem would be to define a new FDT tag - FDT_DEL_PROP, say - that is used to encode any /delete-property/ found in a node during overlay compilation. When the overlay is applied, the named property would be deleted if present. A heuristic would be needed to decide whether this property should be encoded or just acted on immediately - the use of the '-@' command line parameter would seem to fit the bill. Although one might consider extending this mechanism to cover node deletion, in practice I think this would be too problematic in terms of broken phandle references etc., and in most cases 'status = "disabled"' achieves the same objective, so I'm not proposing this be added. Is such a change something you would consider supporting, or do you have an alternative preferred solution? Thanks, Phil -- To unsubscribe from this list: send the line "unsubscribe devicetree-compiler" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
