linux-kernel - RE: [PATCH v3 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings

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Message-ID: <BYAPR02MB4856EDC95308C0F91C4413C7B5D20@BYAPR02MB4856.namprd02.prod.outlook.com>
Date:   Wed, 22 Apr 2020 20:29:41 +0000
From:   Ben Levinsky <BLEVINSK@...inx.com>
To:     Rob Herring <robh@...nel.org>
CC:     "ohad@...ery.com" <ohad@...ery.com>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        Michal Simek <michals@...inx.com>,
        Jolly Shah <JOLLYS@...inx.com>, Rajan Vaja <RAJANV@...inx.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jiaying Liang <jliang@...inx.com>,
        "Ed T. Mooring" <emooring@...inx.com>
Subject: RE: [PATCH v3 4/5] dt-bindings: remoteproc: Add documentation for
 ZynqMP R5 rproc bindings

Hi Rob,

Please see my replies inline.

Best Regards
Ben

-----Original Message-----
From: Rob Herring <robh@...nel.org> 
Sent: Wednesday, April 22, 2020 12:38 PM
To: Ben Levinsky <BLEVINSK@...inx.com>
Cc: ohad@...ery.com; bjorn.andersson@...aro.org; Michal Simek <michals@...inx.com>; Jolly Shah <JOLLYS@...inx.com>; Rajan Vaja <RAJANV@...inx.com>; robh+dt@...nel.org; mark.rutland@....com; linux-remoteproc@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org; Jason Wu <j.wu@...inx.com>; Jiaying Liang <jliang@...inx.com>
Subject: Re: [PATCH v3 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings

On Mon, 20 Apr 2020 15:27:08 -0700, Ben Levinsky wrote:
> Add binding for ZynqMP R5 OpenAMP.
> 
> Represent the RPU domain resources in one device node. Each RPU 
> processor is a subnode of the top RPU domain node.
> 
> Signed-off-by: Ben Levinsky <ben.levinsky@...inx.com>
> Signed-off-by: Jason Wu <j.wu@...inx.com>
> Signed-off-by: Wendy Liang <jliang@...inx.com>
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> ---
> Changes since v2:
> 	- update zynqmp_r5 yaml parsing to not raise warnings for extra
> 	 information in children of R5 node. The warning "node has a unit
> 	 name, but no reg or ranges property" will still be raised though 
> 	 as this particular node is needed to describe the
> 	 '#address-cells' and '#size-cells' information.
> ---
>  .../remoteproc/xilinx,zynqmp-r5-remoteproc.yaml    | 126 +++++++++++++++++++++
>  1 file changed, 126 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remotepr
> oc.yaml
> 

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

Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.example.dts:45.25-65.16: Warning (unit_address_vs_reg): /example-0/rpu@...a0000/r5@0: node has a unit name, but no reg or ranges property
[Ben Levinsky] Yes the following warning is expected. As the node in question has to describe the address-cells and size-cells. As these are needed for its children to then also have address-cells, size-cells and reg values without raising more warnings.

See https://patchwork.ozlabs.org/patch/1273784

If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure dt-schema is up to date:

pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade

Please check and re-submit.