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

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@cerno.tech

.../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