diff mbox series

[v1,1/2] dt-bindings: arm: coresight: Update the pattern of ete node name

Message ID 20231220140538.13136-2-quic_jinlmao@quicinc.com
State New
Headers
Series arm64: dts: qcom: Add coresight nodes for sm8450 |

Commit Message

Mao Jinlong Dec. 20, 2023, 2:05 p.m. UTC 
  Update the suffix for ete node name to be with "-".

Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
---
 .../bindings/arm/arm,embedded-trace-extension.yaml          | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Krzysztof Kozlowski Dec. 20, 2023, 3:50 p.m. UTC | #1 
On 20/12/2023 15:05, Mao Jinlong wrote:
> Update the suffix for ete node name to be with "-".
> 
> Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
> ---
>  .../bindings/arm/arm,embedded-trace-extension.yaml          | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
> index f725e6940993..cbf583d34029 100644
> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
> @@ -23,7 +23,7 @@ description: |
>  
>  properties:
>    $nodename:
> -    pattern: "^ete([0-9a-f]+)$"
> +    pattern: "^ete-([0-9a-f]+)$"

My concerns are not resolved. Why is it here in the first place?

Best regards,
Krzysztof
Mao Jinlong Dec. 21, 2023, 3:28 a.m. UTC | #2 
On 12/20/2023 11:50 PM, Krzysztof Kozlowski wrote:
> On 20/12/2023 15:05, Mao Jinlong wrote:
>> Update the suffix for ete node name to be with "-".
>>
>> Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
>> ---
>>   .../bindings/arm/arm,embedded-trace-extension.yaml          | 6 +++---
>>   1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> index f725e6940993..cbf583d34029 100644
>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>> @@ -23,7 +23,7 @@ description: |
>>   
>>   properties:
>>     $nodename:
>> -    pattern: "^ete([0-9a-f]+)$"
>> +    pattern: "^ete-([0-9a-f]+)$"
> 
> My concerns are not resolved. Why is it here in the first place?

Hi Krzysztof,

ETE is acronym of embedded trace extension. The number of the name is 
the same as the number of the CPU it belongs to.

Hi Suzuki,

Please help to comment on this.

Thanks
Jinlong Mao

> 
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Dec. 21, 2023, 8:12 a.m. UTC | #3 
On 21/12/2023 04:28, Jinlong Mao wrote:
>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>> index f725e6940993..cbf583d34029 100644
>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>> @@ -23,7 +23,7 @@ description: |
>>>   
>>>   properties:
>>>     $nodename:
>>> -    pattern: "^ete([0-9a-f]+)$"
>>> +    pattern: "^ete-([0-9a-f]+)$"
>>
>> My concerns are not resolved. Why is it here in the first place?
> 
> Hi Krzysztof,
> 
> ETE is acronym of embedded trace extension. The number of the name is 
> the same as the number of the CPU it belongs to.

This is obvious and was not my question.

Best regards,
Krzysztof
Mao Jinlong Dec. 21, 2023, 8:15 a.m. UTC | #4 
On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>> index f725e6940993..cbf583d34029 100644
>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>> @@ -23,7 +23,7 @@ description: |
>>>>    
>>>>    properties:
>>>>      $nodename:
>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>
>>> My concerns are not resolved. Why is it here in the first place?
>>
>> Hi Krzysztof,
>>
>> ETE is acronym of embedded trace extension. The number of the name is
>> the same as the number of the CPU it belongs to.
> 
> This is obvious and was not my question.

Do you mean why the pattern match of the node name is added here ?

This node should not have the node name match, right ?

Thanks
Jinlong Mao

> 
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Dec. 21, 2023, 8:17 a.m. UTC | #5 
On 21/12/2023 09:15, Jinlong Mao wrote:
> 
> 
> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>> index f725e6940993..cbf583d34029 100644
>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>    
>>>>>    properties:
>>>>>      $nodename:
>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>
>>>> My concerns are not resolved. Why is it here in the first place?
>>>
>>> Hi Krzysztof,
>>>
>>> ETE is acronym of embedded trace extension. The number of the name is
>>> the same as the number of the CPU it belongs to.
>>
>> This is obvious and was not my question.
> 
> Do you mean why the pattern match of the node name is added here ?

Yes, especially that it is requiring a non-generic name.

> 
> This node should not have the node name match, right ?

Usually. For sure shouldn't be for non-generic names.

Best regards,
Krzysztof
Mao Jinlong Dec. 21, 2023, 8:36 a.m. UTC | #6 
On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
> On 21/12/2023 09:15, Jinlong Mao wrote:
>>
>>
>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>     
>>>>>>     properties:
>>>>>>       $nodename:
>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>
>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>
>>>> Hi Krzysztof,
>>>>
>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>> the same as the number of the CPU it belongs to.
>>>
>>> This is obvious and was not my question.
>>
>> Do you mean why the pattern match of the node name is added here ?
> 
> Yes, especially that it is requiring a non-generic name.
> 
>>
>> This node should not have the node name match, right ?
> 
> Usually. For sure shouldn't be for non-generic names.
> 
Hi Suzuki,

Can we remove the pattern match of the node name and use a generic name 
"ete" for the ete DT nodes ?

Thanks
Jinlong Mao

> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Dec. 21, 2023, 8:44 a.m. UTC | #7 
On 21/12/2023 09:36, Jinlong Mao wrote:
> 
> 
> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>
>>>
>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>     
>>>>>>>     properties:
>>>>>>>       $nodename:
>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>
>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>
>>>>> Hi Krzysztof,
>>>>>
>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>> the same as the number of the CPU it belongs to.
>>>>
>>>> This is obvious and was not my question.
>>>
>>> Do you mean why the pattern match of the node name is added here ?
>>
>> Yes, especially that it is requiring a non-generic name.
>>
>>>
>>> This node should not have the node name match, right ?
>>
>> Usually. For sure shouldn't be for non-generic names.
>>
> Hi Suzuki,
> 
> Can we remove the pattern match of the node name and use a generic name 
> "ete" for the ete DT nodes ?

"ete" is not a generic name. What is generic here? It's an acronym of
some specific device name.

Best regards,
Krzysztof
Mao Jinlong Dec. 26, 2023, 1:50 a.m. UTC | #8 
On 12/21/2023 4:44 PM, Krzysztof Kozlowski wrote:
> On 21/12/2023 09:36, Jinlong Mao wrote:
>>
>>
>> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>>
>>>>
>>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>>      
>>>>>>>>      properties:
>>>>>>>>        $nodename:
>>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>>
>>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>>
>>>>>> Hi Krzysztof,
>>>>>>
>>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>>> the same as the number of the CPU it belongs to.
>>>>>
>>>>> This is obvious and was not my question.
>>>>
>>>> Do you mean why the pattern match of the node name is added here ?
>>>
>>> Yes, especially that it is requiring a non-generic name.
>>>
>>>>
>>>> This node should not have the node name match, right ?
>>>
>>> Usually. For sure shouldn't be for non-generic names.
>>>
>> Hi Suzuki,
>>
>> Can we remove the pattern match of the node name and use a generic name
>> "ete" for the ete DT nodes ?
> 
> "ete" is not a generic name. What is generic here? It's an acronym of
> some specific device name.
> 

The device full name is embedded trace extension. So use ETE as the name 
here.

Thanks
Jinlong Mao

>
Krzysztof Kozlowski Dec. 26, 2023, 9:36 a.m. UTC | #9 
On 26/12/2023 02:50, Jinlong Mao wrote:
> 
> 
> On 12/21/2023 4:44 PM, Krzysztof Kozlowski wrote:
>> On 21/12/2023 09:36, Jinlong Mao wrote:
>>>
>>>
>>> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>>>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>>>
>>>>>
>>>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>>>      
>>>>>>>>>      properties:
>>>>>>>>>        $nodename:
>>>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>>>
>>>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>>>
>>>>>>> Hi Krzysztof,
>>>>>>>
>>>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>>>> the same as the number of the CPU it belongs to.
>>>>>>
>>>>>> This is obvious and was not my question.

You already said it here...

>>>>>
>>>>> Do you mean why the pattern match of the node name is added here ?
>>>>
>>>> Yes, especially that it is requiring a non-generic name.
>>>>
>>>>>
>>>>> This node should not have the node name match, right ?
>>>>
>>>> Usually. For sure shouldn't be for non-generic names.
>>>>
>>> Hi Suzuki,
>>>
>>> Can we remove the pattern match of the node name and use a generic name
>>> "ete" for the ete DT nodes ?
>>
>> "ete" is not a generic name. What is generic here? It's an acronym of
>> some specific device name.
>>
> 
> The device full name is embedded trace extension. So use ETE as the name 
> here.

That's obvious and my comment was not about it. Second time... This is
my unlucky day... I said, why do you even want to enforce name which is
not generic, since the names should be generic?

I assume you read the DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


Best regards,
Krzysztof
James Clark Dec. 28, 2023, 11:02 a.m. UTC | #10 
On 26/12/2023 09:36, Krzysztof Kozlowski wrote:
> On 26/12/2023 02:50, Jinlong Mao wrote:
>>
>>
>> On 12/21/2023 4:44 PM, Krzysztof Kozlowski wrote:
>>> On 21/12/2023 09:36, Jinlong Mao wrote:
>>>>
>>>>
>>>> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>>>>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>>>>
>>>>>>
>>>>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>>>>      
>>>>>>>>>>      properties:
>>>>>>>>>>        $nodename:
>>>>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>>>>
>>>>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>>>>
>>>>>>>> Hi Krzysztof,
>>>>>>>>
>>>>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>>>>> the same as the number of the CPU it belongs to.
>>>>>>>
>>>>>>> This is obvious and was not my question.
> 
> You already said it here...
> 
>>>>>>
>>>>>> Do you mean why the pattern match of the node name is added here ?
>>>>>
>>>>> Yes, especially that it is requiring a non-generic name.
>>>>>
>>>>>>
>>>>>> This node should not have the node name match, right ?
>>>>>
>>>>> Usually. For sure shouldn't be for non-generic names.
>>>>>
>>>> Hi Suzuki,
>>>>
>>>> Can we remove the pattern match of the node name and use a generic name
>>>> "ete" for the ete DT nodes ?
>>>
>>> "ete" is not a generic name. What is generic here? It's an acronym of
>>> some specific device name.
>>>
>>
>> The device full name is embedded trace extension. So use ETE as the name 
>> here.
> 
> That's obvious and my comment was not about it. Second time... This is
> my unlucky day... I said, why do you even want to enforce name which is
> not generic, since the names should be generic?
> 

I think we can just drop the enforced name if it's getting in the way.
It doesn't really do anything and other Coresight bindings don't have it
anyway.

> I assume you read the DT specification:
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
> 
> 
> Best regards,
> Krzysztof
> 

I couldn't find anything in that list that would be a good fit for a
name, and it seems like all of the Coresight devices have already been
added with non generic names (like funnel and replicator etc), so it
might be a bit late now.

But if we drop the enforced name then it's probably fine.

James
Mao Jinlong Dec. 29, 2023, 3:21 a.m. UTC | #11 
On 12/28/2023 7:02 PM, James Clark wrote:
>
> On 26/12/2023 09:36, Krzysztof Kozlowski wrote:
>> On 26/12/2023 02:50, Jinlong Mao wrote:
>>>
>>> On 12/21/2023 4:44 PM, Krzysztof Kozlowski wrote:
>>>> On 21/12/2023 09:36, Jinlong Mao wrote:
>>>>>
>>>>> On 12/21/2023 4:17 PM, Krzysztof Kozlowski wrote:
>>>>>> On 21/12/2023 09:15, Jinlong Mao wrote:
>>>>>>>
>>>>>>> On 12/21/2023 4:12 PM, Krzysztof Kozlowski wrote:
>>>>>>>> On 21/12/2023 04:28, Jinlong Mao wrote:
>>>>>>>>>>> diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>>> index f725e6940993..cbf583d34029 100644
>>>>>>>>>>> --- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>>> +++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
>>>>>>>>>>> @@ -23,7 +23,7 @@ description: |
>>>>>>>>>>>       
>>>>>>>>>>>       properties:
>>>>>>>>>>>         $nodename:
>>>>>>>>>>> -    pattern: "^ete([0-9a-f]+)$"
>>>>>>>>>>> +    pattern: "^ete-([0-9a-f]+)$"
>>>>>>>>>> My concerns are not resolved. Why is it here in the first place?
>>>>>>>>> Hi Krzysztof,
>>>>>>>>>
>>>>>>>>> ETE is acronym of embedded trace extension. The number of the name is
>>>>>>>>> the same as the number of the CPU it belongs to.
>>>>>>>> This is obvious and was not my question.
>> You already said it here...
>>
>>>>>>> Do you mean why the pattern match of the node name is added here ?
>>>>>> Yes, especially that it is requiring a non-generic name.
>>>>>>
>>>>>>> This node should not have the node name match, right ?
>>>>>> Usually. For sure shouldn't be for non-generic names.
>>>>>>
>>>>> Hi Suzuki,
>>>>>
>>>>> Can we remove the pattern match of the node name and use a generic name
>>>>> "ete" for the ete DT nodes ?
>>>> "ete" is not a generic name. What is generic here? It's an acronym of
>>>> some specific device name.
>>>>
>>> The device full name is embedded trace extension. So use ETE as the name
>>> here.
>> That's obvious and my comment was not about it. Second time... This is
>> my unlucky day... I said, why do you even want to enforce name which is
>> not generic, since the names should be generic?
>>
> I think we can just drop the enforced name if it's getting in the way.
> It doesn't really do anything and other Coresight bindings don't have it
> anyway.
>
>> I assume you read the DT specification:
>> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>>
>>
>> Best regards,
>> Krzysztof
>>
> I couldn't find anything in that list that would be a good fit for a
> name, and it seems like all of the Coresight devices have already been
> added with non generic names (like funnel and replicator etc), so it
> might be a bit late now.
>
> But if we drop the enforced name then it's probably fine.
Thanks  James.

I will make change to remove the "$nodename:".

Thanks
Jinlong Mao

>
> James
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
index f725e6940993..cbf583d34029 100644
--- a/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
@@ -23,7 +23,7 @@  description: |
 
 properties:
   $nodename:
-    pattern: "^ete([0-9a-f]+)$"
+    pattern: "^ete-([0-9a-f]+)$"
   compatible:
     items:
       - const: arm,embedded-trace-extension
@@ -55,13 +55,13 @@  examples:
 
 # An ETE node without legacy CoreSight connections
   - |
-    ete0 {
+    ete-0 {
       compatible = "arm,embedded-trace-extension";
       cpu = <&cpu_0>;
     };
 # An ETE node with legacy CoreSight connections
   - |
-   ete1 {
+   ete-1 {
       compatible = "arm,embedded-trace-extension";
       cpu = <&cpu_1>;