[PATCH v5 11/13] media: dt-bindings: tvp5150: add optional tvnorms documentation

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Document the optional binding to limit the possible tv-norms on the
input connectors.

Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/media/i2c/tvp5150.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
index 82fff80fa63a..970be21fb191 100644
--- a/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
+++ b/Documentation/devicetree/bindings/media/i2c/tvp5150.txt
@@ -48,6 +48,13 @@ Required Endpoint Properties for parallel synchronization on output port:
 Note: Do not specify any of these properties if you want to use the embedded
       BT.656 synchronization.
 
+Optional Connector Properties:
+==============================
+
+- tvnorms: Set the possible signals to which the hardware tries to lock instead
+	   of using the autodetection mechnism. Please look at [1] for more
+	   information.
+
 [1] Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt.
 
 Example - three input sources:
@@ -55,6 +62,7 @@ Example - three input sources:
 comp_connector_0 {
 	compatible = "composite-video-connector";
 	label = "Composite0";
+	tvnorms = <TVNORM_PAL_M>; /* limit to pal-m signals */
 
 	port {
 		composite0_to_tvp5150: endpoint {
@@ -66,6 +74,7 @@ comp_connector_0 {
 comp_connector_1 {
 	compatible = "composite-video-connector";
 	label = "Composite1";
+	tvnorms = <TVNORM_NTSC_M>; /* limit to ntsc-m signals */
 
 	port {
 		composite1_to_tvp5150: endpoint {
-- 
2.20.1




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