[PATCH RFC 2/2] dt-bindings: add binding documentation for Allwinner CSI

Baruch Siach baruch at tkos.co.il
Tue Jul 18 21:49:23 PDT 2017


Hi Yong,

On Wed, Jul 19, 2017 at 09:22:49AM +0800, Yong wrote:
> On Tue, 18 Jul 2017 14:55:30 +0300
> Baruch Siach <baruch at tkos.co.il> wrote:
> > I am trying to get this driver working on the Olimex A33 OLinuXino. I 
> > didn't get it working yet, but I had some progress. See the comment below 
> > on one issue I encountered.
> > 
> > On Tue, Jun 27, 2017 at 07:07:34PM +0800, Yong Deng wrote:
> > > Add binding documentation for Allwinner CSI.
> > > 
> > > Signed-off-by: Yong Deng <yong.deng at magewell.com>
> > > ---

[...]

> > > +Example:
> > > +
> > > +	csi1: csi at 01cb4000 {
> > > +		compatible = "allwinner,sun8i-v3s-csi";
> > > +		reg = <0x01cb4000 0x1000>;
> > 
> > You use platform_get_resource_byname() to get this IO resource. This requires 
> > adding mandatory
> > 
> >   reg-names = "csi";
> > 
> > But is it actually needed? Wouldn't a simple platform_get_resource() be 
> > enough?
> 
> You are right.
> This will be fixed in the next version.
> I am waiting for more comments for the sunxi-csi.h. It's pleasure if
> you have any suggestions about it.

You mean sunxi_csi.h, right?

Why do you need the sunxi_csi_ops indirection? Do you expect to add 
alternative implementations of these ops at some point?

baruch

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