Thread (2 messages) 2 messages, 2 authors, 2014-02-28

Re: [PATCH 3/9] Doc/DT: Add DT binding documentation for DVI Connector

From: Russell King - ARM Linux <hidden>
Date: 2014-02-28 15:59:37
Also in: dri-devel, linux-arm-kernel, linux-fbdev

On Fri, Feb 28, 2014 at 02:20:10PM +0200, Tomi Valkeinen wrote:
quoted hunk
Add DT binding documentation for DVI Connector.

Signed-off-by: Tomi Valkeinen <redacted>
Reviewed-by: Archit Taneja <redacted>
---
 .../devicetree/bindings/video/dvi-connector.txt    | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/video/dvi-connector.txt
diff --git a/Documentation/devicetree/bindings/video/dvi-connector.txt b/Documentation/devicetree/bindings/video/dvi-connector.txt
new file mode 100644
index 000000000000..6a0aff866c78
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/dvi-connector.txt
@@ -0,0 +1,26 @@
+DVI Connector
+==============
+
+Required properties:
+- compatible: "dvi-connector"
+
+Optional properties:
+- label: a symbolic name for the connector
+- i2c-bus: phandle to the i2c bus that is connected to DVI DDC
+
+Required nodes:
+- Video port for DVI input
+
+Example
+-------
+
+dvi0: connector@0 {
+	compatible = "dvi-connector";
+	label = "dvi";
+
+	i2c-bus = <&i2c3>;
+
+	dvi_connector_in: endpoint {
+		remote-endpoint = <&tfp410_out>;
+	};
+};
This looks far too simplistic.  There are different classes of DVI
connector - there is:

DVI A - analogue only
DVI D - digital only (single and dual link)
DVI I - both (single and dual digital link)

DRM at least makes a distinction between these three classes, and this
disctinction is part of the user API.  How would a display system know
which kind of DVI connector is wired up on the board from this DT
description?

-- 
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improving, and getting towards what was expected from it.
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