linux-kernel - Re: [PATCH v6 1/4] dt-bindings: fsl-imx-sdma: Convert imx sdma to DT schema

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Date:   Wed, 7 Sep 2022 13:12:00 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Alexander Stein <alexander.stein@...tq-group.com>,
        Joy Zou <joy.zou@....com>
Cc:     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,
        shengjiu.wang@....com, martink@...teo.de, dev@...xeye.de,
        peng.fan@....com, david@...t.cz, aford173@...il.com,
        hongxing.zhu@....com, linux-imx@....com, dmaengine@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 1/4] dt-bindings: fsl-imx-sdma: Convert imx sdma to DT
 schema

On 06/09/2022 12:55, Alexander Stein wrote:
> Hi,
> 
> thanks for the YAML conversion patch.
> 
> Am Dienstag, 6. September 2022, 11:42:53 CEST schrieb Joy Zou:
>> Convert the i.MX SDMA binding to DT schema format using json-schema.
>>
>> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma
>> and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles
>> fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The
>> original binding don't list all compatible used.
>>
>> In addition, add new peripheral types HDMI Audio.
>>
>> Signed-off-by: Joy Zou <joy.zou@....com>
>> ---
>> Changes in v6:
>> delete tag Acked-by from commit message.
>>
>> Changes in v5:
>> modify the commit message fromat.
>> add additionalProperties, because delete the quotes in patch v4.
>> delete unevaluatedProperties due to similar to additionalProperties.
>> modification fsl,sdma-event-remap items and description.
>>
>> Changes in v4:
>> modify the commit message.
>> delete the quotes in patch.
>> modify the compatible in patch.
>> delete maxitems and add items for clock-names property.
>> add iram property.
>>
>> Changes in v3:
>> modify the commit message.
>> modify the filename.
>> modify the maintainer.
>> delete the unnecessary comment.
>> modify the compatible and run dt_binding_check and dtbs_check.
>> add clocks and clock-names property.
>> delete the reg description and add maxItems.
>> delete the interrupts description and add maxItems.
>> add ref for gpr property.
>> modify the fsl,sdma-event-remap ref type and add items.
>> delete consumer example.
>>
>> Changes in v2:
>> convert imx sdma bindings to DT 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
>> +---
>> +$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX
>> +
>> +maintainers:
>> +  - Joy Zou <joy.zou@....com>
>> +
>> +properties:
> 
> Is it sensible to add something like this?
> 
>   $nodename:
>     pattern: "^dma-controller(@.*)?$"
> 
> You are changing the node names in patch 3 anyway.
> 

No, the device schemas do not need to enforce the name. The
dma-controller schema enforces it, so what is missing here is to
reference it.


Best regards,
Krzysztof