From: Frank Rowand <frank.rowand@xxxxxxxx>
Symbols in a loaded overlay are not currently available to subsequently
loaded overlays because the properties in the overlay's __symbols__
node are not loaded into the live device tree.
Patch 1 is unittests to test patches 2 and 3.
Patch 2 fixes a problem discovered while developing patch 3. If
a node name in an overlay has a unit-address then the overlay
code does not correctly match the node name against an existing
node in the live tree.
Patch 3 adds the properties in an overlay's __symbol__ node to
the overlay changeset.
changes since v3:
- fix make W=2 warnings in overlay_base.dts and overlay.dts
- update the test results in the patch comments to match the
.dts changes
changes since v2:
- test on 4.13-rc1
- remove redundant comments from patch headers of patch 0 and patch 1
- guard make of overlay .dtb files with CONFIG_OF_OVERLAY
- guard unittest.c references to overlay .dtb files with
CONFIG_OF_OVERLAY
changes since v1:
- patch 2: Use for_each_child_of_node() instead of open coding,
which allowed removing the new function child_by_full_name().
Frank Rowand (3):
of: overlay: add overlay unittest data for node names and symbols
of: overlay: correctly apply overlay node with unit-address
of: overlay: add overlay symbols to live device tree
drivers/of/overlay.c | 121 ++++++++++++++++++++++--
drivers/of/unittest-data/Makefile | 19 +++-
drivers/of/unittest-data/overlay.dts | 25 ++++-
drivers/of/unittest-data/overlay_bad_symbol.dts | 22 +++++
drivers/of/unittest-data/overlay_base.dts | 11 +++
drivers/of/unittest.c | 10 +-
6 files changed, 190 insertions(+), 18 deletions(-)
create mode 100644 drivers/of/unittest-data/overlay_bad_symbol.dts
--
Frank Rowand <frank.rowand@xxxxxxxx>
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