Re: [PATCH 2/2] SoC: dt-bindings: asahi-kasei,ak4619: Add PDN GPIO support

From: Alexander Koch

Date: Mon Sep 28 2026 - 10:34:15 EST


Add documentation for optional property that enables operation of the
'PDN' pin during initialization:

codec@10 {
compatible = "asahi-kasei,ak4619";
reg = <0x10>;
pdn-gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>; // <--
#sound-dai-cells = <0>;
};

Signed-off-by: Alexander Koch <mail@xxxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/sound/asahi-kasei,ak4619.yaml | 8 ++++++++
1 file changed, 8 insertions(+)

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Lexical error: Documentation/devicetree/bindings/sound/asahi-kasei,ak4619.example.dts:25.39-55 Unexpected 'GPIO_ACTIVE_HIGH'
FATAL ERROR: Syntax error parsing input tree
make[2]: *** [scripts/Makefile.dtbs:140: Documentation/devicetree/bindings/sound/asahi-kasei,ak4619.example.dtb] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/builds/robherring/linux-dt-review/Makefile:1714: 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/20260928114019.1441752-3-mail@xxxxxxxxxxxxxxxxx

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.

Thanks for the review and the clarifications!

I must admit I am a bit new to the concept of YAML based DT bindings documentation and did not realize that examples must be syntactically complete.

So for a fixed v2 would you prefer

a) the missing #include added above the i2c block or
b) the new property removed from the example since it is optional anyway?


Best regards,

Alex