linux-kernel - Re: [PATCH V4 03/10] dt-bindings: timestamp: Deprecate nvidia,slices property

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Date:   Mon, 3 Apr 2023 11:49:08 -0700
From:   Dipen Patel <dipenp@...dia.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        thierry.reding@...il.com, jonathanh@...dia.com,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-gpio@...r.kernel.org, linus.walleij@...aro.org,
        devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
        robh+dt@...nel.org, timestamp@...ts.linux.dev,
        krzysztof.kozlowski+dt@...aro.org, brgl@...ev.pl, corbet@....net,
        gregkh@...uxfoundation.org
Subject: Re: [PATCH V4 03/10] dt-bindings: timestamp: Deprecate nvidia,slices
 property

On 3/25/23 4:05 AM, Krzysztof Kozlowski wrote:
> On 23/03/2023 02:29, Dipen Patel wrote:
>> The property is not necessary as it is a constant value and can be
>> hardcoded in the driver code.
>>
>> Signed-off-by: Dipen Patel <dipenp@...dia.com>
>> ---
>>  .../timestamp/nvidia,tegra194-hte.yaml        | 43 ++-----------------
>>  1 file changed, 4 insertions(+), 39 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
>> index 158dbe58c49f..eafc33e9ae2e 100644
>> --- a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
>> +++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
>> @@ -42,10 +42,13 @@ properties:
>>  
>>    nvidia,slices:
>>      $ref: /schemas/types.yaml#/definitions/uint32
>> +    deprecated: true
>>      description:
>>        HTE lines are arranged in 32 bit slice where each bit represents different
>>        line/signal that it can enable/configure for the timestamp. It is u32
>> -      property and the value depends on the HTE instance in the chip.
>> +      property and the value depends on the HTE instance in the chip. The AON
>> +      GTE instances for both Tegra194 and Tegra234 has 3 slices. The Tegra194
>> +      LIC instance has 11 slices and Tegra234 LIC has 17 slices.
>>      enum: [3, 11, 17]
>>  
>>    '#timestamp-cells':
>> @@ -56,46 +59,10 @@ properties:
>>        mentioned in the nvidia GPIO device tree binding document.
>>      const: 1
>>  
>> -allOf:
>> -  - if:
>> -      properties:
>> -        compatible:
>> -          contains:
>> -            enum:
>> -              - nvidia,tegra194-gte-aon
>> -              - nvidia,tegra234-gte-aon
>> -    then:
>> -      properties:
>> -        nvidia,slices:
>> -          const: 3
>> -
>> -  - if:
>> -      properties:
>> -        compatible:
>> -          contains:
>> -            enum:
>> -              - nvidia,tegra194-gte-lic
>> -    then:
>> -      properties:
>> -        nvidia,slices:
>> -          const: 11
>> -
>> -  - if:
>> -      properties:
>> -        compatible:
>> -          contains:
>> -            enum:
>> -              - nvidia,tegra234-gte-lic
>> -    then:
>> -      properties:
>> -        nvidia,slices:
>> -          const: 17
> 
> You just added this entire block in previous patch. Adding it there and
> immediately removing does not make much sense.
Yes, probably I should just keep that block in this patch as it is since
there is a deprecate field already introduced by this patch which should be enough. 

>> -
> 
> 
> 
> Best regards,
> Krzysztof
>