From: Ken Sloat <ksl...@aampglobal.com>
Update device tree binding documentation specifying how to
enable BT656 with CRC decoding and specify properties for
default parallel bus type.
Signed-off-by: Ken Sloat <ksl...@aampglobal.com>
---
Changes in v2:
-Use correct media "bus-type" dt property.
Changes in v3:
-Specify default bus type.
-Document optional parallel bus flags.
.../devicetree/bindings/media/atmel-isc.txt | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/atmel-isc.txt
b/Documentation/devicetree/bindings/media/atmel-isc.txt
index bbe0e87c6188..db3749a3964f 100644
--- a/Documentation/devicetree/bindings/media/atmel-isc.txt
+++ b/Documentation/devicetree/bindings/media/atmel-isc.txt
@@ -21,6 +21,21 @@ Required properties for ISC:
- pinctrl-names, pinctrl-0
Please refer to pinctrl-bindings.txt.
+Optional properties for ISC:
+- bus-type
+ When set to 6, Bt.656 decoding (embedded sync) with CRC decoding
+ is enabled. If omitted, then the default bus-type is parallel and
+ the additional properties to follow can be specified:
+- hsync-active
+ Active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
+ If unspecified, this signal is set as active HIGH.
+- vsync-active
+ Active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
+ If unspecified, this signal is set as active HIGH.
+- pclk-sample
+ Sample data on rising (1) or falling (0) edge of the pixel clock
+ signal. If unspecified, data is sampled on the rising edge.
+
ISC supports a single port node with parallel bus. It should contain one
'port' child node with child 'endpoint' node. Please refer to the bindings
defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
--
2.17.1
