linux-kernel - Re: [RFC PATCH v3 1/7] dt-bindings: arm: coresight-tmc: Add "memory-region" property

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Message-Id: <169380858686.871638.7090104087040941034.robh@kernel.org>
Date:   Mon, 04 Sep 2023 01:23:06 -0500
From:   Rob Herring <robh@...nel.org>
To:     Linu Cherian <lcherian@...vell.com>
Cc:     linux-arm-kernel@...ts.infradead.org, mike.leach@...aro.org,
        sgoutham@...vell.com, james.clark@....com, leo.yan@...aro.org,
        linux-kernel@...r.kernel.org, krzysztof.kozlowski+dt@...aro.org,
        gcherian@...vell.com, suzuki.poulose@....com,
        coresight@...ts.linaro.org, devicetree@...r.kernel.org,
        conor+dt@...nel.org, robh+dt@...nel.org
Subject: Re: [RFC PATCH v3 1/7] dt-bindings: arm: coresight-tmc: Add
 "memory-region" property

On Mon, 04 Sep 2023 10:35:41 +0530, Linu Cherian wrote:
> memory-region 0: Reserved trace buffer memory
> 
>   TMC ETR: When available, use this reserved memory region for
>   trace data capture. Same region is used for trace data
>   retention after a panic or watchdog reset.
> 
>   TMC ETF: When available, use this reserved memory region for
>   trace data retention synced from internal SRAM after a panic or
>   watchdog reset.
> 
> memory-region 1: Reserved meta data memory
> 
>   TMC ETR, ETF: When available, use this memory for register
>   snapshot retention synced from hardware registers after a panic
>   or watchdog reset.
> 
> Signed-off-by: Linu Cherian <lcherian@...vell.com>
> ---
>  .../devicetree/bindings/arm/arm,coresight-tmc.yaml  | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 

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/arm/arm,coresight-tmc.yaml:104:4: [error] syntax error: expected <block end>, but found '<block mapping start>' (syntax)
./Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml:105:5: [warning] wrong indentation: expected 5 but found 4 (indentation)

dtschema/dtc warnings/errors:
make[2]: *** Deleting file 'Documentation/devicetree/bindings/arm/arm,coresight-tmc.example.dts'
Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml:104:4: did not find expected key
make[2]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/arm/arm,coresight-tmc.example.dts] Error 1
make[2]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml:104:4: did not find expected key
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml: ignoring, error parsing file
make[1]: *** [/builds/robherring/dt-review-ci/linux/Makefile:1500: dt_binding_check] Error 2
make: *** [Makefile:234: __sub-make] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230904050548.28047-2-lcherian@marvell.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.