Date:   Fri, 21 Oct 2022 08:10:22 +0000
From:   Joy Zou <joy.zou@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>
CC:     "S.J. Wang" <shengjiu.wang@....com>,
        "martink@...teo.de" <martink@...teo.de>,
        "dev@...xeye.de" <dev@...xeye.de>,
        "alexander.stein@...tq-group.com" <alexander.stein@...tq-group.com>,
        Peng Fan <peng.fan@....com>, "david@...t.cz" <david@...t.cz>,
        "aford173@...il.com" <aford173@...il.com>,
        Hongxing Zhu <hongxing.zhu@....com>,
        dl-linux-imx <linux-imx@....com>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [EXT] Re: [PATCH v7 1/2] dt-bindings: fsl-imx-sdma: Convert imx
 sdma to DT schema


> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: 2022年10月21日 0:32
> To: Joy Zou <joy.zou@....com>; vkoul@...nel.org; robh+dt@...nel.org;
> krzysztof.kozlowski+dt@...aro.org; shawnguo@...nel.org;
> s.hauer@...gutronix.de; kernel@...gutronix.de; festevam@...il.com
> Cc: S.J. Wang <shengjiu.wang@....com>; martink@...teo.de;
> dev@...xeye.de; alexander.stein@...tq-group.com; Peng Fan
> <peng.fan@....com>; david@...t.cz; aford173@...il.com; Hongxing Zhu
> <hongxing.zhu@....com>; dl-linux-imx <linux-imx@....com>;
> dmaengine@...r.kernel.org; devicetree@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
> Subject: [EXT] Re: [PATCH v7 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma
> to DT schema
> 
> Caution: EXT Email
> 
> On 20/10/2022 06:14, Joy Zou wrote:
> > Convert the i.MX SDMA binding to DT schema format using json-schema.
> >
> 
> 
> > ---
> >  .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 147
> > ++++++++++++++++++  .../devicetree/bindings/dma/fsl-imx-sdma.txt  |
> > 118 --------------
> >  2 files changed, 147 insertions(+), 118 deletions(-)  create mode
> > 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> >  delete mode 100644
> > Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
> >
> > diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > new file mode 100644
> > index 000000000000..3da65d3ea4af
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml
> > @@ -0,0 +1,147 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fschemas%2Fdma%2Ffsl%2Cimx-sdma.yaml%23&amp;data=05
> %7C01%
> >
> +7Cjoy.zou%40nxp.com%7C405bb49028e340afdc9408dab2b89251%7C686ea
> 1d3bc2b
> >
> +4c6fa92cd99c5c301635%7C0%7C0%7C638018803042580036%7CUnknown
> %7CTWFpbGZ
> >
> +sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M
> n0%
> >
> +3D%7C3000%7C%7C%7C&amp;sdata=tgNngxTlIBOhIXt0VYJACNM%2FV%2F0
> LWCXyTYVr
> > +rZ5PfoY%3D&amp;reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&amp;data=05%7C01%7Cjoy.z
> ou%4
> >
> +0nxp.com%7C405bb49028e340afdc9408dab2b89251%7C686ea1d3bc2b4c6
> fa92cd99
> >
> +c5c301635%7C0%7C0%7C638018803042580036%7CUnknown%7CTWFpbG
> Zsb3d8eyJWIj
> >
> +oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> 000%7
> >
> +C%7C%7C&amp;sdata=MNltJ7MuOpabpjY%2FTdi8IDagtgiFz1vgUCUhs68ChV
> U%3D&am
> > +p;reserved=0
> > +
> > +title: Freescale Smart Direct Memory Access (SDMA) Controller for
> > +i.MX
> > +
> > +maintainers:
> > +  - Joy Zou <joy.zou@....com>
> > +
> 
> You need to reference dma-controller.yaml schema.
Thank you very much for your comments.
I will add the dma-controller quotes.
BR
Joy Zou
> 
> > +properties:
> > +  compatible:
> > +    oneOf:
> 
> 
> (...)
> 
> > +
> > +  gpr:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description: The phandle to the General Purpose Register (GPR)
> > + node
> > +
> > +  fsl,sdma-event-remap:
> > +    $ref: /schemas/types.yaml#/definitions/uint32-matrix
> > +    maxItems: 2
> > +    items:
> > +      items:
> > +        - description: GPR register offset
> > +        - description: GPR register shift
> > +        - description: GPR register value
> > +    description: |
> > +      Register bits of sdma event remap, the format is <reg shift val>.
> > +      The order is <RX>, <TX>.
> > +
> > +  clocks:
> > +    maxItems: 2
> > +
> > +  clock-names:
> > +    items:
> > +      - const: ipg
> > +      - const: ahb
> > +
> > +  iram:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description: The phandle to the On-chip RAM (OCRAM) node.
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - fsl,sdma-ram-script-name
> > +  - "#dma-cells"
> 
> and then this can one be dropped.
Thanks your comments.
I have tried to delete the additionalProperties, but I run dtbs_check. The log as follow:
'oneOf' conditional failed, one must be fixed:
	'unevaluatedProperties' is a required property
	'additionalProperties' is a required property
So I think the property may not be dropped.
BR
Joy Zou
> 
> > +
> > +additionalProperties: false
> 
> Best regards,
> Krzysztof

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