Hi,

I've encountered a case where the DT_SPLIT_BINDING_PATCH warning was
emitted even though I didn't change anything outside of Documentation/
devicetree/bindings. I just converted a binding from plain text to YAML.

Here's a transcript of checkpatch (from Linux 5.11-rc1)'s output:

  $ scripts/checkpatch.pl --strict patches-wpcm/0001-dt-bindings-arm-Convert-nuvoton-npcm750-binding-to-Y.patch
  WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
  #31:
  deleted file mode 100644
  
  WARNING: DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.rst
  
  WARNING: DT binding docs and includes should be a separate patch. See: Documentation/devicetree/bindings/submitting-patches.rst
  
  total: 0 errors, 3 warnings, 0 checks, 21 lines checked
  
  NOTE: For some of the reported defects, checkpatch may be able to
        mechanically convert to the typical style using --fix or --fix-inplace.
  
  patches-wpcm/0001-dt-bindings-arm-Convert-nuvoton-npcm750-binding-to-Y.patch has style problems, please review.
  
  NOTE: If any of the errors are false positives, please report
        them to the maintainer, see CHECKPATCH in MAINTAINERS.


I attached the patch, for reference.


Best regards,
Jonathan Neuschäfer