linux-kernel - [PATCH 1/6] media: dt-bindings: Document 'location' property

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Message-Id: <20190816141822.7582-2-jacopo@jmondi.org>
Date:   Fri, 16 Aug 2019 16:18:17 +0200
From:   Jacopo Mondi <jacopo@...ndi.org>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Jacopo Mondi <jacopo@...ndi.org>,
        linux-media@...r.kernel.org (open list:MEDIA INPUT INFRASTRUCTURE
        (V4L/DVB)), linux-kernel@...r.kernel.org (open list),
        devicetree@...r.kernel.org
Subject: [PATCH 1/6] media: dt-bindings: Document 'location' property

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

Signed-off-by: Jacopo Mondi <jacopo@...ndi.org>
---
 .../devicetree/bindings/media/video-interfaces.txt     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
index f884ada0bffc..865f4142f432 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -89,6 +89,16 @@ Optional properties
   but a number of degrees counter clockwise. Typical values are 0 and 180
   (upside down).

+- location: The camera sensor mounting location, expressed as a position
+  relative to the usage orientation of the device the sensor is installed on.
+  Possible values are:
+  0 - Front. The image sensor is mounted on the front facing side of the device.
+  For mobile devices such as smartphones, tablets and laptops the front side is
+  the user facing side of the device.
+  1 - Back. The image sensor is mounted on the back side of the device, which is
+  defined as the opposite side of the front facing one.
+  2 - External. The image sensor is connected to the device by extension cables,
+  and can be freely moved, regardless of the device position.

 Optional endpoint properties
 ----------------------------
--
2.22.0