Re: [PATCH 1/2] dt-bindings: display: sun4i-tcon: Add LVDS Dual Link property

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Hi Laurent,

On Fri, Feb 14, 2020 at 03:10:25PM +0200, Laurent Pinchart wrote:
> Hi Maxime,
>
> Thank you for the patch.
>
> On Fri, Feb 14, 2020 at 01:32:43PM +0100, Maxime Ripard wrote:
> > SoCs that have multiple TCONs can use the two set of pins on the first TCON
> > to drive a dual-link display. Add a property to enable the dual link.
> >
> > Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
> > ---
> >  .../bindings/display/allwinner,sun4i-a10-tcon.yaml         | 7 +++++++
> >  1 file changed, 7 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
> > index 86ad617d2327..aa6dd8409dbc 100644
> > --- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
> > +++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
> > @@ -105,6 +105,13 @@ properties:
> >          - const: edp
> >          - const: lvds
> >
> > +  allwinner,lvds-dual-link:
> > +    type: boolean
> > +    description: |
> > +      On a SoC with two TCON with LVDS support, the first TCON can
> > +      operate over both pins sets to output in a dual-link setup. This
> > +      will be triggered by setting this property.
>
> Could you maybe provide an example of how this property is supposed to
> be used ? I'm especially wondering what ports are used in that case and
> how they're connected.

It's pretty trivial to support, it's only a property to set on the
encoder node itself.

I'm not really sure what you meant by your question with the ports
though :/

Maxime

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