[PATCH 0/3] arm64: dts: qcom: sa8775p: Add interconnect to SMMU

[Robin Murphy]

On 2023-06-09 13:56, Parikshit Pareek wrote:
> On Fri, Jun 09, 2023 at 10:52:26AM +0200, Konrad Dybcio wrote:
>>
>>
>> On 9.06.2023 07:41, Parikshit Pareek wrote:
>>> Some qcom SoCs have SMMUs, which need the interconnect bandwidth to be
>>> This series introduce the due support for associated interconnect, and
>>> setting of the due interconnect-bandwidth. Setting due interconnect
>>> bandwidth is needed to avoid the issues like [1], caused by not having
>>> due clock votes(indirectly dependent upon interconnect bandwidth).
>>
>> [1] ???
> 
> My bad. Intended to mention following:
> https://lore.kernel.org/linux-arm-msm/20230418165224.vmok75fwcjqdxspe@echanude/

This sounds super-dodgy - do you really have to rely on configuration of 
the interconnect path from the SMMU's pagetable walker to RAM to keep a 
completely different interconnect path clocked for the CPU to access 
SMMU registers? You can't just request the programming interface clock 
directly like on other SoCs?

Thanks,
Robin.