Re: [PATCH v11 1/2] dt-bindings: media: Add Allwinner V3s Camera Sensor Interface (CSI)

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Hi,

On Wed, 26 Sep 2018 13:38:08 +0300
Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:

> Hi Maxime,
> 
> On Wednesday, 26 September 2018 13:35:47 EEST maxime.ripard@xxxxxxxxxxx wrote:
> > On Wed, Sep 26, 2018 at 01:19:34PM +0300, Laurent Pinchart wrote:
> > > > +Endpoint node properties for CSI1
> > > > +---------------------------------
> > > 
> > > Should you list the CSI0 properties as well ? As the driver in patch 2/2
> > > doesn't support the CSI-2 interface I assume you have left out CSI0 for
> > > now, but it should still be listed in the bindings. I'm fine with fixing
> > > this as a follow-up patch to avoid missing the v4.20 merge window, but if
> > > you end up resubmitting the series, could you please address the problem
> > > ?
> > 
> > That driver is not available, and the documentation isn't either, so
> > there's no easy way to tell which properties are going to be needed
> > before doing the actual work of reverse engineering it and writing a
> > driver for it. Unfortunately...
> 
> While DT bindings should be independent from driver implementations, I agree 
> it's difficult to develop good bindings without hardware documentation and 
> without at least one working driver implementation.
> 
> How about just explicitly stating that these bindings don't support CSI0 yet ?

OK.

Thanks,
Yong



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