Document the bindings used for the Cadence DSI bridge.
Signed-off-by: Boris Brezillon <boris.brezil...@free-electrons.com>
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.../bindings/display/bridge/cdns,dsi.txt | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
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Documentation/devicetree/bindings/display/bridge/cdns,dsi.txt
diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,dsi.txt
b/Documentation/devicetree/bindings/display/bridge/cdns,dsi.txt
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+++ b/Documentation/devicetree/bindings/display/bridge/cdns,dsi.txt
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+Cadence DSI bridge
+==================
+
+The Cadence DSI bridge is a DPI to DSI bridge supporting up to 4 DSI lanes.
+
+Required properties:
+- compatible: should be set to "cdns,dsi".
+- reg: physical base address and length of the controller's registers.
+- interrupts: interrupt line connected to the DSI bridge.
+- clocks: DSI bridge clocks.
+- clock-names: must contain "pclk" and "sysclk".
+- phys: phandle link to the MIPI D-PHY controller.
+- phy-names: must contain "dphy".
+- #address-cells: must be set to 1.
+- #size-cells: must be set to 0.
+
+Required subnodes:
+- ports: Ports as described in Documentation/devicetree/bindings/graph.txt.
+ Currently contains a single input port at address 0 representing the DPI
+ input. Other ports will be added later to support the SDI inputs.
+ Port 0 should be connected to a DPI encoder output.
+- one subnode per DSI device connected on the DSI bus. Each DSI device should
+ contain a reg property encoding its address on the bus.
+
+Example:
+
+ dsi0: dsi@fd0c0000 {
+ compatible = "cdns,dsi";
+ reg = <0x0 0xfd0c0000 0x0 0x1000>;
+ clocks = <&pclk>, <&sysclk>;
+ clock-names = "pclk", "hclk";
+ interrupts = <1>;
+ phys = <&dphy1>;
+ phy-names = "dphy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dsi0_dpi_input: endpoint {
+ remote-endpoint = <&xxx_dpi_output>;
+ };
+ };
+ };
+
+ panel: dsi-dev@0 {
+ compatible = "<vendor,panel>";
+ reg = <0>;
+ };
+ };
+
--
2.7.4
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