linux-kernel - Re: [PATCH v4 1/3] dt-bindings: pwm: Add Xilinx AXI Timer

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Message-Id: <1622554330.014931.242356.nullmailer@robh.at.kernel.org>
Date:   Tue, 01 Jun 2021 08:32:10 -0500
From:   Rob Herring <robh@...nel.org>
To:     Sean Anderson <sean.anderson@...o.com>
Cc:     linux-kernel@...r.kernel.org,
        Alvaro Gamez <alvaro.gamez@...ent.com>,
        devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
        michal.simek@...inx.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/3] dt-bindings: pwm: Add Xilinx AXI Timer

On Fri, 28 May 2021 17:45:20 -0400, Sean Anderson wrote:
> This adds a binding for the Xilinx LogiCORE IP AXI Timer. This device is
> a "soft" block, so it has many parameters which would not be
> configurable in most hardware. This binding is usually automatically
> generated by Xilinx's tools, so the names and values of some properties
> must be kept as they are. Replacement properties have been provided for
> new device trees.
> 
> Because we need to init timer devices so early in boot, the easiest way
> to configure things is to use a device tree property. For the moment
> this is 'xlnx,pwm', but this could be extended/renamed/etc. in the
> future if these is a need for a generic property.
> 
> Signed-off-by: Sean Anderson <sean.anderson@...o.com>
> ---
> 
> Changes in v4:
> - Remove references to generate polarity so this can get merged
> - Predicate PWM driver on the presence of #pwm-cells
> - Make some properties optional for clocksource drivers
> 
> Changes in v3:
> - Mark all boolean-as-int properties as deprecated
> - Add xlnx,pwm and xlnx,gen?-active-low properties.
> - Make newer replacement properties mutually-exclusive with what they
>   replace
> - Add an example with non-deprecated properties only.
> 
> Changes in v2:
> - Use 32-bit addresses for example binding
> 
>  .../bindings/pwm/xlnx,axi-timer.yaml          | 85 +++++++++++++++++++
>  1 file changed, 85 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/xlnx,axi-timer.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
./Documentation/devicetree/bindings/pwm/xlnx,axi-timer.yaml:16:10: [warning] wrong indentation: expected 10 but found 9 (indentation)
./Documentation/devicetree/bindings/pwm/xlnx,axi-timer.yaml:19:10: [warning] wrong indentation: expected 10 but found 9 (indentation)

dtschema/dtc warnings/errors:

See https://patchwork.ozlabs.org/patch/1485318

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

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.