On 17/01/24 16:49, Krzysztof Kozlowski wrote: > On 17/01/2024 12:15, Siddharth Vadapalli wrote: >> >> >> On 17/01/24 16:30, Krzysztof Kozlowski wrote: >>> On 17/01/2024 11:58, Siddharth Vadapalli wrote: >>>> On 17/01/24 16:05, Krzysztof Kozlowski wrote: >>>>> On 17/01/2024 11:25, Siddharth Vadapalli wrote: >>>>>> Extend the existing compatible based checks for validating and enforcing >>>>>> the "max-link-speed" property. >>>>> >>>>> Based on what? Driver or hardware? Your entire change suggests you >>>> >>>> Hardware. The PCIe controller on AM64 SoC supports up to Gen2 link speed while >>>> the PCIe controllers on other SoCs support Gen3 link speed. >>>> >>>>> should just drop it from the binding, because this can be deduced from >>>>> compatible. >>>> >>>> Could you please clarify? Isn't the addition of the checks for "max-link-speed" >>>> identical to the checks which were added for "num-lanes", both of which are >>>> Hardware specific? >>> >>> Compatible defines these values, at least what it looks like from the patch. >> >> In this patch, I have added checks for the "max-link-speed" property in the same >> section that "num-lanes" is being evaluated. > > I know what you did in patch. I read it. > >> The values for "max-link-speed" are >> based on the Hardware support and this patch is validating the "max-link-speed" >> property in the device-tree nodes for the devices against the Hardware supported >> values which this patch is adding in the corresponding section. Kindly let me >> know if I misunderstood what you meant to convey. > > Nothing of this is relevant. > > I used two entirely different wordings for this and you still don't get > it, so I don't know if I have third one. > > Maybe this: > Move it to driver match data. Ok. I will drop the checks for "max-link-speed" and move them to the driver. But I wonder why the checks for "num-lanes" are needed in the first place when they could be in the driver as well. > > So three entirely different wordings for the same. I don't have fourth... > > Best regards, > Krzysztof > -- Regards, Siddharth.
