linux-kernel - Re: [PATCH 18/23] dt-bindings: media: imx258: Add alternate compatible strings

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Date: Thu, 28 Mar 2024 11:05:00 -0600
From: Luigi311 <personal@...gi311.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, git@...gi311.com,
 linux-media@...r.kernel.org
Cc: dave.stevenson@...pberrypi.com, jacopo.mondi@...asonboard.com,
 mchehab@...nel.org, robh@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
 kernel@...gutronix.de, festevam@...il.com, sakari.ailus@...ux.intel.com,
 devicetree@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 18/23] dt-bindings: media: imx258: Add alternate
 compatible strings

On 3/28/24 01:47, Krzysztof Kozlowski wrote:
> On 28/03/2024 00:17, git@...gi311.com wrote:
>> From: Dave Stevenson <dave.stevenson@...pberrypi.com>
>>
>> There are a number of variants of the imx258 modules that can not
>> be differentiated at runtime, so add compatible strings for them.
>>
>> Signed-off-by: Dave Stevenson <dave.stevenson@...pberrypi.com>
>> Signed-off-by: Luigi311 <git@...gi311.com>
>> ---
>>  .../devicetree/bindings/media/i2c/sony,imx258.yaml          | 6 +++++-
>>  1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
>> index bee61a443b23..c7856de15ba3 100644
>> --- a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
>> +++ b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
>> @@ -14,10 +14,14 @@ description: |-
>>    type stacked image sensor with a square pixel array of size 4208 x 3120. It
>>    is programmable through I2C interface.  Image data is sent through MIPI
>>    CSI-2.
>> +  There are a number of variants of the sensor which cannot be detected at
>> +  runtime, so multiple compatible strings are required to differentiate these.
>>  
>>  properties:
>>    compatible:
>> -    const: sony,imx258
>> +    - enum:
>> +        - sony,imx258
> 
> Two people working on patch but no one tested it before sending. Do not
> send untested code.
> 
> It does not look like you tested the bindings, at least after quick
> look. Please run `make dt_binding_check` (see
> Documentation/devicetree/bindings/writing-schema.rst for instructions).
> Maybe you need to update your dtschema and yamllint.

Hello, looks like I messed this up during my v2 (sorry missed the v in 
my format patch) when I took this off Dave's hands. This is all new to
me so thank you for the command used to check, I was only compiling
the kernel and testing that so I didn't realize this needed separate 
testing. 

Looks like it no longer complains when i run
make dt_binding_check DT_SCHEMA_FILES=media/i2c/sony,imx258

with the following

properties:
  compatible:
    enum:
      - sony,imx258
      - sony,imx258-pdaf

If that looks good I can go ahead and include that in the v3

> 
> Best regards,
> Krzysztof
>