Re: [PATCH v5 5/5] PCI: qcom: Use frequency and level based OPP lookup

[Bjorn Helgaas]

On Mon, Oct 13, 2025 at 04:23:32PM +0530, Krishna Chaitanya Chundru wrote:
> PCIe link configurations such as 8GT/s x2 and 16GT/s x1 may operate at
> the same frequency but differ in other characteristics like RPMh votes.
> The existing OPP selection based solely on frequency cannot distinguish
> between such cases.
> 
> In such cases, frequency alone is insufficient to identify the correct OPP.
> Use the newly introduced dev_pm_opp_find_key_exact() API to match both
> frequency and level when selecting an OPP, here level indicates PCIe
> data rate.
> 
> To support older device tree's where opp-level is not defined, check if
> opp-level is present or not using dev_pm_opp_find_level_exact(). if
> not present fallback to frequency only match.

What are the names of the DT properties here for the exact (frequency
+ level) and frequency-only values?  I'd like to mention them in the
commit log so we can look at a DT and figure out what to expect from
this change.