[PATCH v2 00/11] Add FIT image overlay support

[Marco Felsch <m.felsch@pengutronix.de>]

Hi,

this series add the support to load FIT image supplied devicetree overlays.
The v1 of this series can be found here [1].

The overlay loading wasn't coupled to bootm due to the following
reasons:
 - By making use of the common overlay handling we can specifiy a
   different/separate FIT image which provides only overlays.
 - It should be possible to apply FIT image overlay to the barebox
   live-tree (not implemented yet).
 - Loading a single overlay takes ~20ms (depending on the overlay size)
   if the same FIT image is used to supply the kernel, initrd,
   devicetree and devicetree-overlays. This is an improvement compared to
   the v1 of this series which required ~1sec.

Regards,
  Marco

[1] https://lore.pengutronix.de/barebox/20240322164953.1772129-1-m.felsch@pengutronix.de/

Marco Felsch (11):
  FIT: fix missing free in fit_open error path
  of: overlay: add of.overlay.fitconfigpattern param
  FIT: skip possible overlay config nodes
  of: overlay: make the pattern match function more generic
  of: overlay: make search dir/path more generic
  FIT: expose useful helpers
  of: overlay: add FIT overlay support
  of: overlay: drop unnecessary empty check in
    of_overlay_global_fixup_dir
  of: overlay: replace filename with an more unique name
  FIT: save filename during fit_open
  FIT: add support to cache opened fit images

 common/image-fit.c   |  69 +++++++++++++-
 drivers/of/overlay.c | 212 ++++++++++++++++++++++++++++++++++---------
 include/image-fit.h  |   7 ++
 include/of.h         |   3 +-
 4 files changed, 246 insertions(+), 45 deletions(-)

-- 
2.39.2