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From: tomi.valkeinen@ti•com (Tomi Valkeinen)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 0/9] Doc/DT: DT bindings for various display components
Date: Fri, 28 Feb 2014 18:48:35 +0200	[thread overview]
Message-ID: <5310BDE3.60603@ti.com> (raw)
In-Reply-To: <20140228162752.GU21483@n2100.arm.linux.org.uk>

On 28/02/14 18:27, Russell King - ARM Linux wrote:
> On Fri, Feb 28, 2014 at 02:20:07PM +0200, Tomi Valkeinen wrote:
>> Shortly about the display components in the series, in the order of probable
>> public interest:
>>
>> * Analog TV, DVI and HDMI Connectors represent a respective connector on the
>>   board. They don't do much, but they do mark the end of the video pipeline (from
>>   the board's pov), and they should also in the future offer ways to handle
>>   things like the +5V pin on DVI and HDMI connector and HPD pin.
> 
> The big thing which concerns me is that we're using very generic
> compatible strings here - has anyone done any searches to see whether
> there are any existing standards for this kind of stuff already?

I did look for any display related DT bindings when I started the work
on OMAP DSS DT bindings. I didn't really find any. If I recall right,
the only thing I found was an example of basically:

fb at 1234567 {
	compatible="asd";
	reg=<1234567>;
};

So just a node for "framebuffer", with the register addresses. And maybe
video timings in some form.

Maybe I didn't know where to look.

> Even if none can be found, if we're going to create something like
> this, it should probably become a public standard not just for Linux.

This is totally unclear to me. How does it become a public standard?
What's the forum for this?

> If we're not willing to do that, I'd suggest prefixing the compatible
> strings with "linux," as a "company" identifier so that there's no
> chance that we may hit some major problem caused by a conflicting
> implementation in the future.

I don't have an issue with "linux," either. We could always later remove
the prefix (but keep drivers compatible with it). So it sounds quite a
safe approach to me, if we're not quite clear if these bindings are
acceptable, or how to get "public approval" for them.

 Tomi


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  reply	other threads:[~2014-02-28 16:48 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-28 12:20 [PATCH 0/9] Doc/DT: DT bindings for various display components Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 1/9] Doc/DT: Add OMAP DSS DT Bindings Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 2/9] Doc/DT: Add DT binding documentation for Analog TV Connector Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 3/9] Doc/DT: Add DT binding documentation for DVI Connector Tomi Valkeinen
2014-02-28 13:43   ` Philipp Zabel
2014-03-03  6:25     ` Tomi Valkeinen
2014-02-28 15:59   ` Russell King - ARM Linux
2014-02-28 16:12     ` Tomi Valkeinen
2014-02-28 16:23       ` Russell King - ARM Linux
2014-02-28 16:28         ` Warner Losh
2014-03-03  6:42         ` Tomi Valkeinen
2014-03-04 12:54         ` Daniel Vetter
2014-03-05  8:41         ` Tomi Valkeinen
2014-03-06  8:39           ` Geert Uytterhoeven
2014-03-06  8:52             ` Tomi Valkeinen
2014-03-07 14:17               ` Philipp Zabel
2014-03-10 10:32                 ` Tomi Valkeinen
2014-02-28 16:25       ` Sebastian Reichel
2014-02-28 16:25     ` Philipp Zabel
2014-03-10 21:45       ` Rob Herring
2014-03-11  6:39         ` Tomi Valkeinen
2014-03-11  8:00           ` Geert Uytterhoeven
2014-03-11  8:04             ` Tomi Valkeinen
2014-03-11 11:19               ` Philipp Zabel
2014-03-11  6:43       ` Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 4/9] Doc/DT: Add DT binding documentation for HDMI Connector Tomi Valkeinen
2014-02-28 16:06   ` Russell King - ARM Linux
2014-02-28 16:15     ` Tomi Valkeinen
2014-02-28 16:34       ` Russell King - ARM Linux
2014-03-01 18:58         ` Geert Uytterhoeven
2014-03-03  7:23           ` Tomi Valkeinen
2014-03-05  8:42           ` Tomi Valkeinen
2014-03-04 12:59     ` Daniel Vetter
2014-02-28 12:20 ` [PATCH 5/9] Doc/DT: Add DT binding documentation for MIPI DPI Panel Tomi Valkeinen
2014-02-28 13:40   ` Philipp Zabel
2014-03-03  6:05     ` Tomi Valkeinen
2014-03-17 14:19   ` Laurent Pinchart
2014-03-18  6:41     ` Tomi Valkeinen
2014-03-18  7:06       ` Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 6/9] Doc/DT: Add DT binding documentation for MIPI DSI CM Panel Tomi Valkeinen
2014-03-17 14:22   ` Laurent Pinchart
2014-03-18  6:33     ` Tomi Valkeinen
2014-03-18 12:43       ` Laurent Pinchart
2014-02-28 12:20 ` [PATCH 7/9] Doc/DT: Add DT binding documentation for Sony acx565akm panel Tomi Valkeinen
2014-02-28 13:38   ` Philipp Zabel
2014-02-28 13:47     ` Tomi Valkeinen
2014-02-28 12:20 ` [PATCH 8/9] Doc/DT: Add DT binding documentation for TFP410 encoder Tomi Valkeinen
2014-02-28 13:37   ` Philipp Zabel
2014-02-28 12:20 ` [PATCH 9/9] Doc/DT: Add DT binding documentation for tpd12s015 encoder Tomi Valkeinen
2014-02-28 16:13   ` Russell King - ARM Linux
2014-02-28 16:30     ` Tomi Valkeinen
2014-02-28 12:37 ` [PATCH 0/9] Doc/DT: DT bindings for various display components Tomasz Figa
2014-02-28 12:57 ` Sebastian Hesselbarth
2014-02-28 13:14   ` Tomi Valkeinen
2014-02-28 13:51     ` Sebastian Hesselbarth
2014-02-28 15:39       ` Tomi Valkeinen
2014-02-28 16:48       ` Russell King - ARM Linux
2014-02-28 13:47   ` Philipp Zabel
2014-02-28 13:56     ` Sebastian Hesselbarth
2014-02-28 16:27 ` Russell King - ARM Linux
2014-02-28 16:48   ` Tomi Valkeinen [this message]
2014-02-28 16:56     ` Russell King - ARM Linux
2014-03-03  8:04       ` Tomi Valkeinen
2014-03-07 12:56         ` Tomi Valkeinen
2014-03-10 16:05         ` Rob Herring
2014-03-10 16:40           ` Tomi Valkeinen
2014-03-10 20:32             ` Rob Herring
2014-03-12  8:15 ` Tomi Valkeinen
2014-03-17 13:55   ` Tomi Valkeinen
2014-03-21 15:37     ` Grant Likely

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