This series revives the new style of overlay syntax that never got merged. David said he wanted to handle it outside of the parse phase[1], and he proposed a patch to move overlay application to the livetree phase. I've applied that patch and reworked Pantelis' last two patches for the new style "syntactic sugar" on top[2].
In addition, I've included the new /expansion/ keyword support for overlays that don't reference any labels that are outside of the input file. The new expansion keyword just transforms the unresolved references into strings that go into a new 'target-alias' property instead of the 'target' property. This is in line with what David has proposed on the mailing list a few months ago[3]. RFC part: The current syntax requires a root node or overlays are rejected. Making the root node optional would require some non-trivial rework of the grammar to support it. This means the proposed 'new style' syntax doesn't work without the root node. [1] https://lkml.kernel.org/r/20161125041124.gb12...@umbus.fritz.box [2] https://lkml.kernel.org/r/1481114903-8197-7-git-send-email-pantelis.anton...@konsulko.com [3] https://lkml.kernel.org/r/20160718142037.gs16...@voom.fritz.box David Gibson (1): Start moving overlay handling from parser into dtc core Pantelis Antoniou (1): tests: Add a test for overlays syntactic sugar Stephen Boyd (2): dtc: Add syntactic sugar version of overlays dtc: Add /expansion/ support checks.c | 2 +- dtc-lexer.l | 6 +++ dtc-parser.y | 68 +++++++++++++++++----------------- dtc.c | 16 +++++++- dtc.h | 20 +++++++++- flattree.c | 2 +- fstree.c | 2 +- livetree.c | 80 +++++++++++++++++++++++++++++++++++++++- tests/overlay_overlay_simple.dts | 3 ++ tests/run_tests.sh | 6 +++ 10 files changed, 163 insertions(+), 42 deletions(-) -- 2.10.0.297.gf6727b0
