Re: [PATCH V2 1/3] dt-bindings: interconnect: Add EPSS L3 compatible for SA8775P

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On 10/26/2024 8:15 PM, Dmitry Baryshkov wrote:
> On Sat, Oct 26, 2024 at 12:30:56PM +0000, Raviteja Laggyshetty wrote:
>> Add Epoch Subsystem (EPSS) L3 interconnect provider binding on
>> SA8775P SoCs.
>>
>> Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@xxxxxxxxxxx>
>> ---
>>  .../devicetree/bindings/interconnect/qcom,osm-l3.yaml         | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> index 21dae0b92819..042ca44c32ec 100644
>> --- a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> +++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> @@ -34,6 +34,10 @@ properties:
>>                - qcom,sm8250-epss-l3
>>                - qcom,sm8350-epss-l3
>>            - const: qcom,epss-l3
>> +      - items:
>> +          - enum:
>> +              - qcom,sa8775p-epss-l3
>> +          - const: qcom,epss-l3-perf
> 
> Why is it -perf? What's so different about it?

The EPSS instance in SA8775P uses PERF_STATE register instead of REG_L3_VOTE to scale L3 clocks.
So adding new generic compatible "qcom,epss-l3-perf" for PERF_STATE register based l3 scaling.


> 
>>  
>>    reg:
>>      maxItems: 1
>> -- 
>> 2.39.2
>>
> 





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