Re: [PATCH 09/15] arm64: dts: qcom: sm6375: Add CPUCP L3 node

From: Konrad Dybcio
Date: Fri Mar 10 2023 - 08:15:29 EST




On 10.03.2023 04:14, Sibi Sankar wrote:
> Hey Konrad,
>
> Thanks for the patch.
>
> On 3/4/23 03:28, Konrad Dybcio wrote:
>> Enable the CPUCP block responsible for scaling the L3 cache.
>
> FWIW, the patch just enables the l3 provider, the CPUCP block would
> already be up at this point. You would also want to include the
> expansion for CPUCP at least once in your patch.
Right, I didn't think much about this, but I should probably reword
this and the bindings commit to mention that CPUCP != L3 scaler within.

Konrad
>
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
>
> Reviewed-by: Sibi Sankar <quic_sibis@xxxxxxxxxxx>
>
>> ---
>>   arch/arm64/boot/dts/qcom/sm6375.dtsi | 9 +++++++++
>>   1 file changed, 9 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm6375.dtsi b/arch/arm64/boot/dts/qcom/sm6375.dtsi
>> index 90f18754a63b..59d7ed25aa36 100644
>> --- a/arch/arm64/boot/dts/qcom/sm6375.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm6375.dtsi
>> @@ -1505,6 +1505,15 @@ frame@f42d000 {
>>               };
>>           };
>>   +        cpucp_l3: interconnect@fd90000 {
>> +            compatible = "qcom,sm6375-cpucp-l3", "qcom,epss-l3";
>> +            reg = <0 0x0fd90000 0 0x1000>;
>> +
>> +            clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>, <&gcc GPLL0>;
>> +            clock-names = "xo", "alternate";
>> +            #interconnect-cells = <1>;
>> +        };
>> +
>>           cpufreq_hw: cpufreq@fd91000 {
>>               compatible = "qcom,sm6375-cpufreq-epss", "qcom,cpufreq-epss";
>>               reg = <0 0x0fd91000 0 0x1000>, <0 0x0fd92000 0 0x1000>;
>>