On Thu, 01 Jan 2026 17:58:17 +0100, J. Neuschäfer wrote:

Convert the Freescale localbus controller bindings from text form to
YAML. Compared to the .txt version, the YAML binding contains a new
usage example with FCM NAND flash, and a full list of compatible strings
based on current usage in arch/powerpc/boot/dts/.

Note that the both the compatible strings and the unit address format
are kept as-is, for compatibility with existing kernels and device
trees, as well as unit address readability. This results in dts
validation warnings:

  Warning (simple_bus_reg): /example-0/localbus@f0010100/board-control@1,0:
  simple-bus unit address format error, expected "100000000"

Signed-off-by: J. Neuschäfer <redacted>
---

V5:
- fix reference to fsl/lbc.txt in
  Documentation/devicetree/bindings/display/ssd1289fb.txt

V4:
- no changes

V3:
- move this patch after the GPCM/FCM patches to dtschema/dtc warnings
  due to missing bindings for fsl,elbc-gpcm-uio and fsl,elbc-fcm-nand
- add "simple-bus" again, for compatibility with existing DTs/drivers
  based on discussion with Crystal Wood and Rob Herring
- fix fsl,pq2-localbus compatible properties based on mgcoge.dts / ep8248e.dts
  (was missing "simple-bus")
- add board-control (bcsr) example again, now using the compatible
  string listed in Documentation/devicetree/bindings/board/fsl,bcsr.yaml
- remove interrupt-parent property from example
- rework the commit message

V2:
- fix order of properties in examples, according to dts coding style
- move to Documentation/devicetree/bindings/memory-controllers
- clarify the commit message a tiny bit
- remove unnecessary multiline markers (|)
- define address format in patternProperties
- trim subject line (remove "binding")
- remove use of "simple-bus", because it's technically incorrect
---
 .../devicetree/bindings/display/ssd1289fb.txt      |   2 +-
 .../bindings/memory-controllers/fsl,elbc.yaml      | 158 +++++++++++++++++++++
 .../devicetree/bindings/powerpc/fsl/lbc.txt        |  43 ------
 3 files changed, 159 insertions(+), 44 deletions(-)

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/memory-controllers/fsl,elbc.example.dts:29.23-34.15: Warning (simple_bus_reg): /example-0/localbus@f0010100/flash@0,0: simple-bus unit address format error, expected "0"
Documentation/devicetree/bindings/memory-controllers/fsl,elbc.example.dts:36.31-39.15: Warning (simple_bus_reg): /example-0/localbus@f0010100/board-control@1,0: simple-bus unit address format error, expected "100000000"
Documentation/devicetree/bindings/memory-controllers/fsl,elbc.example.dts:41.31-46.15: Warning (simple_bus_reg): /example-0/localbus@f0010100/simple-periph@2,0: simple-bus unit address format error, expected "200000000"
Documentation/devicetree/bindings/memory-controllers/fsl,elbc.example.dts:82.23-89.15: Warning (simple_bus_reg): /example-1/localbus@e0005000/flash@0,0: simple-bus unit address format error, expected "0"
Documentation/devicetree/bindings/memory-controllers/fsl,elbc.example.dts:91.22-97.15: Warning (simple_bus_reg): /example-1/localbus@e0005000/nand@1,0: simple-bus unit address format error, expected "100000000"

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260101-ppcyaml-elbc-v5-4-251c7f14a06c@posteo.net

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.