Document the CSI1/CCP2 property strobe. It signifies the clock or
strobe mode.

Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov...@gmail.com>
Signed-off-by: Pavel Machek <pa...@ucw.cz>
Reviewed-By: Sebastian Reichel <s...@kernel.org>
Acked-by: Rob Herring <r...@kernel.org>
---
 Documentation/devicetree/bindings/media/video-interfaces.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt 
b/Documentation/devicetree/bindings/media/video-interfaces.txt
index 9aa2722b6920..852041a7480c 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -117,7 +117,8 @@ Optional endpoint properties
   should be the combined length of data-lanes and clock-lanes properties.
   If the lane-polarities property is omitted, the value must be interpreted
   as 0 (normal). This property is valid for serial busses only.
-
+- strobe: Whether the clock signal is used as clock (0) or strobe (1). Used
+  with CCP2, for instance.
 
 Example
 -------
-- 
2.11.0

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