linux-kernel - Re: [PATCH v2 4/9] dt-binding: riscv: add T-HEAD CPU reset

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Date:   Thu, 18 May 2023 14:39:29 -0500
From:   Rob Herring <robh@...nel.org>
To:     Jisheng Zhang <jszhang@...nel.org>
Cc:     linux-riscv@...ts.infradead.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Yangtao Li <frank.li@...o.com>,
        Rob Herring <robh+dt@...nel.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Icenowy Zheng <uwu@...nowy.me>, Wei Fu <wefu@...hat.com>,
        Guo Ren <guoren@...nel.org>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Marc Zyngier <maz@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Subject: Re: [PATCH v2 4/9] dt-binding: riscv: add T-HEAD CPU reset


On Fri, 19 May 2023 02:45:36 +0800, Jisheng Zhang wrote:
> The secondary CPUs in T-HEAD SMP capable platforms need some special
> handling. The first one is to write the warm reset entry to entry
> register. The second one is write a SoC specific control value to
> a SoC specific control reg. The last one is to clone some CSRs for
> secondary CPUs to ensure these CSRs' values are the same as the
> main boot CPU. This DT node is mainly used by opensbi firmware.
> 
> Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> ---
>  .../bindings/riscv/thead,cpu-reset.yaml       | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/riscv/thead,cpu-reset.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:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/riscv/thead,cpu-reset.example.dts:18.35-25.11: Warning (unit_address_vs_reg): /example-0/cpurst@...f019050: node has a unit name, but no reg or ranges property
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/riscv/thead,cpu-reset.example.dtb: cpurst@...f019050: control-reg:0: [255, 4278276100] is too long
	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/riscv/thead,cpu-reset.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230518184541.2627-5-jszhang@kernel.org

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.