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From: Pavel Machek <pavel@ucw.cz>
To: Jacopo Mondi <jacopo@jmondi.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	tfiga@google.com, Rob Herring <robh+dt@kernel.org>,
	"open list:MEDIA INPUT INFRASTRUCTURE (V4L/DVB)" 
	<linux-media@vger.kernel.org>,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v3 01/11] dt-bindings: video-interfaces: Document 'location' property
Date: Fri, 27 Sep 2019 17:27:45 +0200
Message-ID: <20190927152745.GA23113@amd> (raw)
In-Reply-To: <20190912201055.13964-2-jacopo@jmondi.org>

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Hi!

> 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 <jacopo@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.

I don't think this is nearly enough of description. We have phones
with displays and cameras at both sides, where both sides can be used
to operate the system.

We have phone with display spanning both sides -- Mi Max.

https://www.idnes.cz/mobil/telefony/xiaomi-mi-mix-alpha-predstaveni.A190924_105858_telefony_oma

We have Galaxy Fold.

https://www.samsung.com/global/galaxy/galaxy-fold/

What is front side when device can be used in different
configurations?

Could we instead say that it is "main" vs "selfie" camera?

Notebooks usually have just "selfie" camera, tablets often have
both... DSLRs have just "main" camera.

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  parent reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-12 20:10 [PATCH v3 00/11] media: Report camera sensor properties Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 01/11] dt-bindings: video-interfaces: Document 'location' property Jacopo Mondi
2019-09-13 13:45   ` Hans Verkuil
2019-09-27 15:27   ` Pavel Machek [this message]
2019-09-28 12:48     ` Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 02/11] media: v4l2-ctrl: Document V4L2_CID_CAMERA_SENSOR_LOCATION Jacopo Mondi
2019-09-13 13:48   ` Hans Verkuil
2019-09-12 20:10 ` [PATCH v3 03/11] dt-bindings: video-interfaces: Expand rotation description Jacopo Mondi
2019-09-13 13:50   ` Hans Verkuil
2019-09-12 20:10 ` [PATCH v3 04/11] media: v4l2-ctrl: Document V4L2_CID_CAMERA_SENSOR_ROTATION Jacopo Mondi
2019-09-13 14:02   ` Hans Verkuil
2019-09-13 18:49     ` Jacopo Mondi
2019-09-24 15:53       ` Jacopo Mondi
2019-09-27 11:20       ` Hans Verkuil
2019-09-12 20:10 ` [PATCH v3 05/11] media: v4l2-ctrls: Add camera location and rotation Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 06/11] media: v4l2-fwnode: Add helper to parse device properties Jacopo Mondi
2019-09-13 14:08   ` Hans Verkuil
2019-09-13 19:04     ` Jacopo Mondi
2019-09-27 10:57       ` Hans Verkuil
2019-09-12 20:10 ` [PATCH v3 07/11] include: v4l2-ctrl: Sort forward declarations Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 08/11] media: v4l2-ctrls: Sort includes alphabetically Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 09/11] media: v4l2-ctrls: Add helper to register properties Jacopo Mondi
2019-09-13 14:25   ` Hans Verkuil
2019-09-12 20:10 ` [PATCH v3 10/11] media: i2c: ov5670: Parse and " Jacopo Mondi
2019-09-12 20:10 ` [PATCH v3 11/11] media: i2c: ov13858: " Jacopo Mondi

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