Re: [PATCH 2/3] spi: of: allow instantiating slaves without a driver

[Mark Brown]

On Sun, Jun 26, 2016 at 01:35:46PM +0200, Michal Suchanek wrote:
> On 26 June 2016 at 13:21, Mark Brown <broonie@xxxxxxxxxx> wrote:

> > You can just add the entire slave node in the overlay, it's not clear
> > that this buys us anything useful

> You have to target the master node and specify the CS in the overlay
> if you create the whole node. If you target the slave node you have
> the CS specified in the board devicetree and the overlay can apply to
> multiple boards without change.

No, there's a lot more to having overlays to board-neutral connectors...

> > and this needs to be joined up with the work going on to allow
> > expansion connector overlays to be loaded in the first place.

> The overlays work equally well before and after this patch. I don't
> see any problem with them other than part of the infrastructure
> missing in mainline kernel.

...you're missing all this stuff here - currently the active work on
this is being done by Patelis.  It's not at all clear to me that
referring to a slave rather than a master would be any easier in a board
neutral overlay.

Attachment: signature.asc
Description: PGP signature