Re: [PATCH v2 1/4] dt-bindings: iio: adc: ad7192: Add properties

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On Mon, 2024-02-05 at 10:28 +0100, Krzysztof Kozlowski wrote:
> On 02/02/2024 23:20, David Lechner wrote:
> > > > 
> > > > And this should be input clock.
> > > > 
> > > > > +    type: boolean
> > > > > +
> > > > > +  adi,int-clock-output-enable:
> > > > > +    description: |
> > > > > +      Internal 4.92 MHz clock available on MCLK2 pin.
> > > > > +    type: boolean
> > > > 
> > > > This should be clock-cells and clock provider.
> > > > 
> > > > Unless you are just documenting already used interface which you do not
> > > > want to break...
> > 
> > This property is already used in the mainline Linux driver, so sounds
> > like the "don't want to break it" case. But it would make sense to
> > deprecate this property and use standard clock provider bindings
> > instead.
> 
> One could think like that, but what type of process would it create?
> Send driver changes WITHOUT binding, then document whatever crap you
> have saying "Linux already supports it!".
> 
> Whenever such argument is used, I am repeating the same.
> 
> Let's be more clear: NAK if this is clock provider and the only argument
> is that someone sneaked undocumented interface bypassing review.
> 

Fair enough... 

Alisa,

I guess you have two alternatives then:

1) Drop this patch;
2) Add proper clock provider properties.

I would obviously go with 2). You can then take care of backward compatibility in the
driver. Like, if clock-cells is present, ignore the legacy properties and properly
export the clocks we have in the device.

- Nuno Sá





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