For future reference, following barebox changes were applied
on top of the scripts/checkpatch.pl copied from upstream:

4a7f56056d ("scripts: Adapt checkpatch.pl for barebox.")
2671c30c25 ("scripts/checkpatch.pl: don't search for Doxyfile when checking top_of_kernel_tree()")
ad3c55fbf2 ("scripts/checkpatch.pl: don't search for CREDITS when checking top_of_kernel_tree()")
13b0f4666d ("checkpatch: don't check TODO file presence")

	These adjust sub top_of_kernel_tree's @tree_check to eventually contain
		(
			"arch", "commands", "common", "COPYING", "defaultenv",
			"Documentation", "drivers", "fs", "include", "lib",
			"MAKEALL", "Makefile", "net", "README", "scripts"
		);

9e809ef431 ("scripts: allow lines longer than 80 cols with printf() in checkpatch")

	adds an exception for printf, same as printk.

9496896fbf ("checkpatch: add DT compatible string documentation checks")

	searches dts/Bindings as well as Documentation/devicetree/bindings
	for compatibles.

Cc: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>