The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add
corresponding device tree bindings.

Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
 .../bindings/display/bridge/renesas,lvds.txt       | 54 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 55 insertions(+)
 create mode 100644 
Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt

diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt 
b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
new file mode 100644
index 000000000000..459c56822eda
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
@@ -0,0 +1,54 @@
+Renesas R-Car LVDS Encoder
+==========================
+
+These DT bindings describe the LVDS encoder embedded in the Renesas R-Car Gen2
+and Gen3 SoCs.
+
+Required properties:
+
+- compatible : Shall contain one of
+  - "renesas,lvds-r8a7743" for R8A7790 (R-Car RZ/G1M) compatible LVDS encoders
+  - "renesas,lvds-r8a7790" for R8A7790 (R-Car H2) compatible LVDS encoders
+  - "renesas,lvds-r8a7791" for R8A7791 (R-Car M2-W) compatible LVDS encoders
+  - "renesas,lvds-r8a7793" for R8A7791 (R-Car M2-N) compatible LVDS encoders
+  - "renesas,lvds-r8a7795" for R8A7795 (R-Car H3) compatible LVDS encoders
+  - "renesas,lvds-r8a7796" for R8A7796 (R-Car M3-W) compatible LVDS encoders
+
+- reg: Base address and length for the memory-mapped registers
+- clocks: A phandle + clock-specifier pair for the functional clock
+
+Requires nodes:
+
+The LVDS encoder has two video ports. Their connections are modelled using the
+OF graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+
+- Video port 0 corresponds to the parallel input
+- Video port 1 corresponds to the LVDS output
+
+Each port shall have a single endpoint.
+
+
+Example:
+
+       lvds0: lvds@feb90000 {
+               compatible = "renesas,lvds-r8a7790";
+               reg = <0 0xfeb90000 0 0x1c>;
+               clocks = <&cpg CPG_MOD 726>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+                               lvds0_in: endpoint {
+                                       remote-endpoint = <&du_out_lvds0>;
+                               };
+                       };
+                       port@1 {
+                               reg = <1>;
+                               lvds0_out: endpoint {
+                               };
+                       };
+               };
+       };
diff --git a/MAINTAINERS b/MAINTAINERS
index 40aea858c7ea..5609a7f5ac4d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4725,6 +4725,7 @@ F:        drivers/gpu/drm/rcar-du/
 F:     drivers/gpu/drm/shmobile/
 F:     include/linux/platform_data/shmob_drm.h
 F:     Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
+F:     Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt
 F:     Documentation/devicetree/bindings/display/renesas,du.txt
 
 DRM DRIVERS FOR ROCKCHIP
-- 
Regards,

Laurent Pinchart

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