Re: [PATCH v1 1/2] dt-bindings: pwm: convert pwm-rockchip.txt to YAML

[Rob Herring]

On Tue, Apr 06, 2021 at 09:04:29PM +0200, Johan Jonker wrote:
> Hi,
> 
> Question for Heiko:
> rv1108.dtsi and rk3328.dtsi have a undocumented "interrupts" property
> AFAICT without driver support.
> Please advise what to do with it.
> 
> 
> See build log:
> https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20210406155053.29101-1-jbx6244@xxxxxxxxx/
> 
> ====
> 
> Question for Rob:
> It looks like that recent "improvements" with regard to checking for
> undocumented compatible strings make it almost impossible to do any
> useful dt_checking, let alone for the average user. Maybe reduce the
> notification blurb output a bit for things that have nothing to do with
> this document. 

It's off by default for dt_binding_check until the 80 or so warnings are 
killed. It's on for the PW checks so new ones don't get added. It's also 
off for dtbs_check if you set DT_SCHEMA_FILES. 

> Unable to fall back to previous versions for older kernels.

Sorry, don't understand this sentence.

> 
> pip3 install git+https://github.com/devicetree-org/dt-schema.git@master
> --upgrade
> 
> make ARCH=arm dtbs_check
> make ARCH=arm dtbs_check
> DT_SCHEMA_FILES=Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
> 
> make ARCH=arm64 dtbs_check
> make ARCH=arm64 dtbs_check
> DT_SCHEMA_FILES=Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml