[PATCH 4.19.y-cip 16/17] dt-bindings: display: Add idk-2121wr binding


Biju Das <biju.das.jz@...>
 

From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

commit 8efef33eff5088ecc748e9d5b3bff6c1c955348f upstream.

Add binding for the idk-2121wr LVDS panel from Advantech.

Some panel-specific documentation can be found here:
https://buy.advantech.eu/Displays/Embedded-LCD-Kits-High-Brightness/model-IDK-2121WR-K2FHA2E.htm

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1583869169-1006-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
.../display/panel/advantech,idk-2121wr.yaml | 122 ++++++++++++++++++
1 file changed, 122 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml
new file mode 100644
index 000000000000..6b7fddc80c41
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/advantech,idk-2121wr.yaml
@@ -0,0 +1,122 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/advantech,idk-2121wr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Advantech IDK-2121WR 21.5" Full-HD dual-LVDS panel
+
+maintainers:
+ - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+ - Thierry Reding <thierry.reding@gmail.com>
+
+description: |
+ The IDK-2121WR from Advantech is a Full-HD dual-LVDS panel.
+ A dual-LVDS interface is a dual-link connection with even pixels traveling
+ on one link, and with odd pixels traveling on the other link.
+
+ The panel expects odd pixels on the first port, and even pixels on the
+ second port, therefore the ports must be marked accordingly (with either
+ dual-lvds-odd-pixels or dual-lvds-even-pixels).
+
+properties:
+ compatible:
+ items:
+ - const: advantech,idk-2121wr
+ - {} # panel-lvds, but not listed here to avoid false select
+
+ width-mm:
+ const: 476
+
+ height-mm:
+ const: 268
+
+ data-mapping:
+ const: vesa-24
+
+ panel-timing: true
+
+ ports:
+ type: object
+ properties:
+ port@0:
+ type: object
+ description: The sink for odd pixels.
+ properties:
+ reg:
+ const: 0
+
+ dual-lvds-odd-pixels: true
+
+ required:
+ - reg
+ - dual-lvds-odd-pixels
+
+ port@1:
+ type: object
+ description: The sink for even pixels.
+ properties:
+ reg:
+ const: 1
+
+ dual-lvds-even-pixels: true
+
+ required:
+ - reg
+ - dual-lvds-even-pixels
+
+additionalProperties: false
+
+required:
+ - compatible
+ - width-mm
+ - height-mm
+ - data-mapping
+ - panel-timing
+ - ports
+
+examples:
+ - |+
+ panel-lvds {
+ 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>;
+ dual-lvds-odd-pixels;
+ panel_in0: endpoint {
+ remote-endpoint = <&lvds0_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ dual-lvds-even-pixels;
+ panel_in1: endpoint {
+ remote-endpoint = <&lvds1_out>;
+ };
+ };
+ };
+ };
+
+...
--
2.17.1

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