Re: [PATCH v2 2/2] spi: spidev: add new mediatek support

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On 19/01/2023 20:30, Alexandre Mergnat wrote:
> Le jeu. 19 janv. 2023 à 18:36, Mark Brown <broonie@xxxxxxxxxx> a écrit :
>>
>> On Thu, Jan 19, 2023 at 06:28:20PM +0100, Alexandre Mergnat wrote:
>>> Add the "mediatek,genio" compatible string to support Mediatek
>>> SPI controller on the genio boards.
>>
>> All my previous review comments stand, please don't ignore review
>> feedback.
> 
> Hi Mark,
> 
> Yes sorry about that, I wasn't aware that I've some feedback when I
> sent V2 for a quickfix.
> 
> I will take care about your comment:
> 
>> We need a matching update to the binding document.
>>
>> This does also seem like a terribly generic name - Google
>> suggests that this is actually a series of numbered products (eg,
>> Genio 700), perhaps we should be using the specific numbers here?
>> I guess users would care which they're talking to.  It really
>> parses as being "generic I/O" which would be an end run around
>> describing the actual product though it's not actually that.
> 
> Is there a binding documentation for spidev ? I didn't find it.
> 
> My understanding is to have something more specific like:
> compatible = "mediatek,genio350"
> Or maybe use the SoC name, to be aligned with the DTS ?
> compatible = "mediatek,spi-mt8365"

This should be specific compatible for your device attached over SPI. If
you have there "Genio 350", then the first.

Compatible can be documented in its own binding or in trivial-devices (I
sent a patch for existing ones).

Best regards,
Krzysztof




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