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

Santhosh Kumar K s-k6 at ti.com
Mon Jun 1 23:30:36 PDT 2026



On 01/06/26 17:17, Krzysztof Kozlowski wrote:
> On Mon, Jun 01, 2026 at 01:26:27PM +0200, Krzysztof Kozlowski wrote:
>   >>
>>>> This should be used in any of applicable examples.
>>>
>>> Please refer to the DT changes included in the repository linked in the
>>> cover letter, which should provide a clearer picture of how this
>>> property is intended to be used. [0]
>>>
>>> I'll also add a DT binding example in the next version to make the usage
>>> more explicit.
>>
>> Why do you new a new example? Why existing examples are not applicable?
> 
> typo: "Why do you need a new example?"

No, I  wasn't planning to add a new example. I'll extend one of the
existing binding examples.

> 
>>
>>>
>>>>
>>>> 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.

Regards,
Santhosh.

> 
> Best regards,
> Krzysztof
> 




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