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Subject: media: dt-bindings: video-interfaces: Document 'orientation' property
Author:  Jacopo Mondi <[email protected]>
Date:    Sat May 9 11:04:44 2020 +0200

Add the 'orientation' device property, used to specify the device mounting
position. The property is particularly meaningful for mobile devices
with a well defined usage orientation.

Reviewed-by: Rob Herring <[email protected]>
Acked-by: Tomasz Figa <[email protected]>
Signed-off-by: Jacopo Mondi <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

 Documentation/devicetree/bindings/media/video-interfaces.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

---

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt 
b/Documentation/devicetree/bindings/media/video-interfaces.txt
index f884ada0bffc..b1ff492c7da7 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -89,6 +89,17 @@ Optional properties
   but a number of degrees counter clockwise. Typical values are 0 and 180
   (upside down).
 
+- orientation: The orientation of a device (typically an image sensor or a 
flash
+  LED) describing its mounting position relative to the usage orientation of 
the
+  system where the device is installed on.
+  Possible values are:
+  0 - Front. The device is mounted on the front facing side of the system.
+  For mobile devices such as smartphones, tablets and laptops the front side is
+  the user facing side.
+  1 - Back. The device is mounted on the back side of the system, which is
+  defined as the opposite side of the front facing one.
+  2 - External. The device is not attached directly to the system but is
+  attached in a way that allows it to move freely.
 
 Optional endpoint properties
 ----------------------------

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