Hej Sakari,
On 2024-05-27 06:28:54 +0000, Sakari Ailus wrote:
> Hejssan Niklas,
>
> On Sun, May 26, 2024 at 12:07:47AM +0200, Niklas Söderlund wrote:
> > 1. We could add a new generic property to fulfill the 'lane-polarities'
> > function for C-PHY, 'lane-polarities-mipi-cphy'. That would only be
> > valid for C-PHY buses.
> >
> > The structure would be the same as for lane-polarities but the items
> > enum would allow a value from 0-5 for each entry in the array. And we
> > could define mappings in dt-bindings/media/video-interfaces.h to
> > allow names in DTS, MEDIA_BUS_CSI2_CPHY_{ABC,CBA,ACB,CAB,BAC,BCA}?
> >
> > This feels wrong as we already have 'lane-polarities' and it is used
> > for CSI-2 D-PHY configurations already.
>
> Could you add a property for this called "line-orders" with matching data
> line order in MIPI DisCo for Imaging specification
> <URL:https://www.mipi.org/specifications/mipi-disco-imaging>?
Thanks for this document! I looked for the C-PHY specification when
trying to figure this out. But as that is not public I gave up on trying
to use MIPI as a resource to work on MIPI stuff ;-)
Your suggestion for a line-orders property with the values described in
the port properties section of is a good way forward, thanks!
>
> The polarity isn't a right term here as it's not a differential pair as on
> D-PHY.
>
> --
> Hälsningar,
>
> Sakari Ailus
--
Kind Regards,
Niklas Söderlund
