Hi Fabrizio,
On Thu, Aug 15, 2019 at 12:04:25PM +0100, Fabrizio Castro wrote:
Dual-link LVDS displays have two ports, therefore document this with the bindings.
Signed-off-by: Fabrizio Castro fabrizio.castro@bp.renesas.com
v1->v2:
- Reworked the description of the ports property
- lvds0_panel_in in the example has been renamed to panel_in0
- lvds1_panel_in in the example has been renamed to panel_in1
Laurent,
in linux-next they are now working with: Documentation/devicetree/bindings/display/panel/lvds.yaml
Documentation/devicetree/bindings/display/panel/lvds.yaml is in drm-misc-next, so I would advise rebasing on top of that.
What should I do here?
.../bindings/display/panel/panel-lvds.txt | 95 ++++++++++++++++------ 1 file changed, 71 insertions(+), 24 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/panel/panel-lvds.txt b/Documentation/devicetree/bindings/display/panel/panel-lvds.txt index 250850a..5231243 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-lvds.txt +++ b/Documentation/devicetree/bindings/display/panel/panel-lvds.txt @@ -41,7 +41,12 @@ Required nodes:
- panel-timing: See panel-common.txt.
- ports: See panel-common.txt. These bindings require a single port subnode
- corresponding to the panel LVDS input.
- (for a single link panel) corresponding to the panel LVDS input, or two port
- subnodes (for a dual link panel) corresponding to the panel LVDS inputs.
- Dual-link LVDS panels expect even pixels (0, 2, 4, etc.) and odd pixels (1, 3,
- 5, etc.) on different input ports, it's up to the panel-specific bindings to
- specify what port is expecting even pixels, and what port is expecting odd
- pixels.
LVDS data mappings are defined as follows. @@ -92,30 +97,72 @@ CTL3: 0 Example
-panel {
- compatible = "mitsubishi,aa121td01", "panel-lvds";
- width-mm = <261>;
- height-mm = <163>;
- data-mapping = "jeida-24";
- panel-timing {
/* 1280x800 @60Hz */clock-frequency = <71000000>;hactive = <1280>;vactive = <800>;hsync-len = <70>;hfront-porch = <20>;hback-porch = <70>;vsync-len = <5>;vfront-porch = <3>;vback-porch = <15>;+Single port:
- panel {
compatible = "mitsubishi,aa121td01", "panel-lvds";width-mm = <261>;height-mm = <163>;data-mapping = "jeida-24";panel-timing {/* 1280x800 @60Hz */clock-frequency = <71000000>;hactive = <1280>;vactive = <800>;hsync-len = <70>;hfront-porch = <20>;hback-porch = <70>;vsync-len = <5>;vfront-porch = <3>;vback-porch = <15>;};port {panel_in: endpoint {remote-endpoint = <&lvds_encoder>;};};
- port {
panel_in: endpoint {remote-endpoint = <&lvds_encoder>;+Two ports:
- panel {
compatible = "advantech,idk-2121wr", "panel-lvds";width-mm = <476>;height-mm = <268>;data-mapping = "vesa-24";panel-timing {clock-frequency = <148500000>;hactive = <1920>;vactive = <1080>;hsync-len = <44>;hfront-porch = <88>;hback-porch = <148>;vfront-porch = <4>;vback-porch = <36>;vsync-len = <5>;};ports {#address-cells = <1>;#size-cells = <0>;port@0 {reg = <0>;panel_in0: endpoint {remote-endpoint = <&lvds0_out>;};};port@1 {reg = <1>;panel_in1: endpoint {remote-endpoint = <&lvds1_out>;};};-};