linux-kernel - Re: Re: [PATCH RFC 04/21] dt-bindings: media: ti,j721e-csi2rx-shim: Support 32 dma chans

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Message-ID: <jk7jsiws7ivxwdl4teoviu6qxp43fcj2raxj424m5jtep5dm2u@j3vpbetaimhy>
Date: Fri, 23 Feb 2024 13:14:44 +0530
From: Jai Luthra <j-luthra@...com>
To: Rob Herring <robh@...nel.org>
CC: Vaishnav Achath <vaishnav.a@...com>,
        Sakari Ailus
	<sakari.ailus@...ux.intel.com>,
        Jayshri Pawar <jpawar@...ence.com>,
        Jack Zhu
	<jack.zhu@...rfivetech.com>,
        Julien Massot <julien.massot@...labora.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Changhuang Liang
	<changhuang.liang@...rfivetech.com>,
        Maxime Ripard <mripard@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Aradhya
 Bhatia <a-bhatia1@...com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        <linux-kernel@...r.kernel.org>, Devarsh Thakkar <devarsht@...com>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Tomi Valkeinen
	<tomi.valkeinen@...asonboard.com>
Subject: Re: Re: [PATCH RFC 04/21] dt-bindings: media: ti,j721e-csi2rx-shim:
 Support 32 dma chans

Hi Rob,

On Feb 22, 2024 at 05:25:13 -0700, Rob Herring wrote:
> 
> On Thu, 22 Feb 2024 17:01:20 +0530, Jai Luthra wrote:
> > The CSI2RX SHIM IP can support a maximum of 32x DMA channels.
> > 
> > These can be used to split incoming "streams" of data on the CSI-RX
> > port, distinguished by MIPI Virtual Channel (or Data Type), into
> > different locations in memory (/dev/videoX nodes).
> > 
> > Actual number of DMA channels reserved is different for each SoC
> > integrating this IP, but a maximum of 32x channels are always available
> > in this IP's register space, so set minimum as 1 and maximum as 32.
> > 
> > Link: https://www.ti.com/lit/pdf/spruiv7
> > Signed-off-by: Jai Luthra <j-luthra@...com>
> > ---
> >  .../bindings/media/ti,j721e-csi2rx-shim.yaml       | 40 ++++++++++++++++++++--
> >  1 file changed, 37 insertions(+), 3 deletions(-)
> > 
> 
> 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:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml: properties:dma-names: {'minItems': 1, 'maxItems': 32, 'items': [{'const': 'rx0'}, {'const': 'rx1'}, {'const': 'rx2'}, {'const': 'rx3'}, {'const': 'rx4'}, {'const': 'rx5'}, {'const': 'rx6'}, {'const': 'rx7'}, {'const': 'rx8'}, {'const': 'rx9'}, {'const': 'rx10'}, {'const': 'rx11'}, {'const': 'rx12'}, {'const': 'rx13'}, {'const': 'rx14'}, {'const': 'rx15'}, {'const': 'rx16'}, {'const': 'rx17'}, {'const': 'rx18'}, {'const': 'rx19'}, {'const': 'rx20'}, {'const': 'rx21'}, {'const': 'rx22'}, {'const': 'rx23'}, {'const': 'rx24'}, {'const': 'rx25'}, {'const': 'rx26'}, {'const': 'rx27'}, {'const': 'rx28'}, {'const': 'rx29'}, {'const': 'rx30'}, {'const': 'rx31'}]} should not be valid under {'required': ['maxItems']}
> 	hint: "maxItems" is not needed with an "items" list

Thanks will fix in next revision.

> 	from schema $id: http://devicetree.org/meta-schemas/items.yaml#
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240222-multistream-v1-4-1837ed916eeb@ti.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.
> 

-- 
Thanks,
Jai

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