Re: [PATCH v3 02/13] spi: dt-bindings: cdns,qspi-nor: add PHY tuning pattern partition property

[Krzysztof Kozlowski]

On 02/06/2026 08:30, Santhosh Kumar K wrote:
> 
>>
>>>
>>>>
>>>>>
>>>>> I also have doubts that this is per-device property. Your commit msg
>>>>> suggests it is per controller.
>>>>
>>>> This is a per-device property. It is consumed by the controller driver
>>>> only to locate and retrieve the offset of the PHY pattern partition
>>>
>>> So with two devices on a bus, you need two separate partitions for tuning?
> 
> Each SPI NOR flash device needs a partition to store PHY tuning pattern.
> 

I understood that you READ the tuning pattern:
"PHY tuning requires a known data pattern to be readable from flash."
Now you write "to store PHY tuning pattern".

I am confused and I still don't understand what would happen if you have
two flash memories on a bus with each having a partition.


Best regards,
Krzysztof