Re: [PATCH] dt-bindings: mmc: brcm,iproc-sdhci: allow dma-coherent property

["Rob Herring (Arm)" <robh@kernel.org>]

On Fri, 06 Mar 2026 08:47:03 +0900, Lee Yongjun wrote:
> The Broadcom iProc SDHCI controller supports DMA, but its binding
> schema does not allow the 'dma-coherent' property.
> 
> As a result, dtbs_check reports the following validation errors
> on the Northstar2 SoC:
> 
>   mmc@66420000 (brcm,sdhci-iproc-cygnus): Unevaluated properties
>   are not allowed ('dma-coherent' was unexpected)
>   mmc@66430000 (brcm,sdhci-iproc-cygnus): Unevaluated properties
>   are not allowed ('dma-coherent' was unexpected)
> 
> Allow the 'dma-coherent' property in the schema to fix the validation
> errors and accurately reflect the hardware capability.
> 
> Signed-off-by: Lee Yongjun <jun85566@gmail.com>
> ---
>  Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

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

yamllint warnings/errors:
./Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml:46:3: [error] duplication of key "dma-coherent" in mapping (key-duplicates)

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml: ignoring, error parsing file
./Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml:46:3: found duplicate key "dma-coherent" with value "True" (original value: "True")
make[2]: *** Deleting file 'Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.example.dts'
Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml:46:3: found duplicate key "dma-coherent" with value "True" (original value: "True")
make[2]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.example.dts] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1605: dt_binding_check] Error 2
make: *** [Makefile:248: __sub-make] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260305234703.38490-1-jun85566@gmail.com

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.