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

Signed-off-by: Jacopo Mondi <jac...@jmondi.org>
---
 .../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..e71b90a29d7a 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).

+- location: The device, typically an image sensor or a flash LED, mounting
+  location expressed as a 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, or is
+  attached in a way that allows it to move freely.

 Optional endpoint properties
 ----------------------------
--
2.23.0

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