On Sun, Apr 12, 2020 at 08:20:11PM +0200, Sam Ravnborg wrote: > The wiring property is used to describe the wiring between > the connector and the panel. The property can be used when the > wiring is used to change the mode from for example > BGR to RGB. The first users are the at91sam9 family where > such a wiring trick is sometimes used. > The possilbe values are so far limited to what is required > by the at91sam9 family, but using "text" allows us to extend > this in the future. > > There exists similar properties today: > - display/tilcdc/tilcdc.txt: blue-and-red-wiring > - display/atmel,lcdc.txt: atmel,lcd-wiring-mode > > Neither of the above are defined as endpoint properties. > > The new property "wiring" has a more general name and > is defined as an endpoint property. > It will replace atmel,lcd-wiring-mode and may replace > blue-and-red-wiring. > > Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx> > Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> > Cc: Rob Herring <robh@xxxxxxxxxx> > Cc: Hans Verkuil <hverkuil@xxxxxxxxx> > Cc: linux-media@xxxxxxxxxxxxxxx > --- > Documentation/devicetree/bindings/media/video-interfaces.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt > index f884ada0bffc..c3bb87c5c9a9 100644 > --- a/Documentation/devicetree/bindings/media/video-interfaces.txt > +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt > @@ -141,6 +141,9 @@ Optional endpoint properties > - link-frequencies: Allowed data bus frequencies. For MIPI CSI-2, for > instance, this is the actual frequency of the bus, not bits per clock per > lane value. An array of 64-bit unsigned integers. > +- wiring: Wiring of data lines to display. > + "straight" - normal wiring. Don't really need a property to express this... > + "red-blue-reversed" - red and blue lines reversed. For a common property, I think this needs to be looked at in terms of formats and some of the format negotiation work Boris was doing. Rob
