[PATCH v2 01/15] dt-bindings: ufs: add common platform bindings

Krzysztof Kozlowski krzysztof.kozlowski at canonical.com
Sun Feb 27 02:24:13 PST 2022


On 25/02/2022 20:26, Rob Herring wrote:
> On Tue, Feb 22, 2022 at 03:58:40PM +0100, Krzysztof Kozlowski wrote:
>> Add bindings for common parts (platform) of Universal Flash Storage
>> (UFS) Host Controllers in dtschema format.
>>
>> The 'freq-table-hz' is not correct in dtschema, because '-hz' suffix
>> defines uint32 type, not an array.  Therefore deprecate 'freq-table-hz'
>> and use 'freq-table' instead.
> 
> -hz is an array type. We can extend it to matrix if needed.
> 
> I do think this property is a bit questionable. Do we really need a 
> minimum in DT and if not, wouldn't assigned-clocks-rate work? Or an OPP 
> table.
> 

I think the proper solution is OPP table, see also comments from Bjorn:
https://lore.kernel.org/all/YhUodbzxx4wbr+gy@ripper/

I would rather refrain from converting it to OPP tables, because I won't
be able to test any changes in the driver.


Best regards,
Krzysztof



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