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From: Tomi Valkeinen <tomi.valkeinen@ti.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thierry Reding <thierry.reding@gmail.com>,
	Ajay kumar <ajaynumb@gmail.com>,
	Ajay Kumar <ajaykumar.rs@samsung.com>,
	InKi Dae <inki.dae@samsung.com>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>,
	"linux-samsung-soc@vger.kernel.org"
	<linux-samsung-soc@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Rob Clark <robdclark@gmail.com>,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	Sean Paul <seanpaul@google.com>, Jingoo Han <jg1.han@samsung.com>,
	sunil joshi <joshi@samsung.com>,
	Prashanth G <prashanth.g@samsung.com>
Subject: Re: [PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties
Date: Tue, 7 Oct 2014 11:25:56 +0300	[thread overview]
Message-ID: <5433A394.4000406@ti.com> (raw)
In-Reply-To: <5749335.iMpaHR0UO8@avalon>

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On 07/10/14 10:23, Laurent Pinchart wrote:

>> You mean the bridge driver would somehow take a peek into panel1 and
>> panel2 nodes, looking for bridge specific properties? Sounds somewhat
>> fragile to me... How would the bridge driver know a property is for the
>> bridge?
> 
> No, I mean the bridge driver should call the API provided by the panel objects 
> to get information about the panels, and compute its configuration parameters 
> from those. I'm not sure if that's possible though, it depends on whether the 
> bridge parameters can be computed from information provided by the panel.

Right. My example tried to show a case where they can't be queried. The
board or the wiring causes signal degradation, which can be fixed by
increasing the bridge output voltage slightly.

So it has nothing really to do with the panel, but the board.

I fully admit that it is a purely theoretical case, and I don't have any
real use cases in mind right now.

 Tomi



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  reply	other threads:[~2014-10-07  8:25 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-27 14:39 [PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties Ajay Kumar
2014-08-27 14:39 ` [PATCH V7 10/12] Documentation: devicetree: Add vendor prefix for parade Ajay Kumar
2014-08-27 14:39 ` [PATCH V7 09/12] Documentation: drm: bridge: move to video/bridge Ajay Kumar
2014-09-17 11:52 ` [PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties Tomi Valkeinen
2014-09-17 14:29   ` Ajay kumar
2014-09-17 16:22     ` Tomi Valkeinen
2014-09-18  5:50       ` Ajay kumar
2014-09-19 12:54         ` Tomi Valkeinen
2014-09-19 13:59           ` Ajay kumar
2014-09-19 14:28             ` Tomi Valkeinen
2014-09-20 11:22               ` Ajay kumar
2014-09-20 15:27                 ` Javier Martinez Canillas
2014-09-22  6:00                   ` Ajay kumar
2014-09-22 15:05                   ` Tomi Valkeinen
2014-10-07 10:30                 ` Tomi Valkeinen
2014-10-07 10:36                   ` Ajay kumar
2014-10-07 14:49                     ` Laurent Pinchart
2014-10-08  7:09                       ` Thierry Reding
2014-10-10 13:03                         ` Ajay kumar
2014-10-16  8:23                           ` Ajay kumar
2014-10-16  9:04                           ` Laurent Pinchart
2014-10-28  9:12                             ` Javier Martinez Canillas
2014-10-28 11:12                               ` Ajay kumar
2014-09-22  8:26               ` Thierry Reding
2014-09-22 14:42                 ` Tomi Valkeinen
2014-09-23  5:53                   ` Thierry Reding
2014-09-23  8:41                     ` Tomi Valkeinen
2014-09-23  9:28                       ` Thierry Reding
2014-09-23 11:15                         ` Tomi Valkeinen
2014-09-23 14:29                           ` Thierry Reding
2014-09-23 15:25                             ` Tomi Valkeinen
2014-09-22  8:10         ` Thierry Reding
2014-09-22  8:31           ` Ajay kumar
2014-09-22 10:41             ` Thierry Reding
2014-09-22 11:23               ` Ajay kumar
2014-09-22 11:35                 ` Thierry Reding
2014-09-22 12:12                   ` Ajay kumar
2014-09-23  0:00                   ` Laurent Pinchart
2014-09-23  5:55                     ` Thierry Reding
2014-09-23  6:11                       ` Ajay kumar
2014-09-23  6:28                         ` Thierry Reding
2014-09-23 11:47                       ` DT property to selectively disable device features (was [PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties) Laurent Pinchart
2014-09-22  8:06       ` [PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties Thierry Reding
2014-09-22 14:23         ` Tomi Valkeinen
2014-09-23  6:04           ` Thierry Reding
2014-09-23  7:24             ` Andrzej Hajda
2014-09-23  8:35               ` Thierry Reding
2014-09-23  9:40                 ` Tomi Valkeinen
2014-09-23 10:01                   ` Thierry Reding
2014-09-23 12:09                     ` Tomi Valkeinen
2014-09-23 14:38                       ` Thierry Reding
2014-09-23 15:33                         ` Tomi Valkeinen
2014-09-23  9:43                 ` Andrzej Hajda
2014-09-23 10:10                   ` Thierry Reding
2014-09-23 10:34                     ` Andrzej Hajda
2014-09-23 14:41                       ` Thierry Reding
2014-09-24  7:11                         ` Andrzej Hajda
2014-09-24  8:27                         ` Tomi Valkeinen
2014-09-23 11:33                     ` Laurent Pinchart
2014-09-23  8:54             ` Tomi Valkeinen
2014-09-23  9:39               ` Thierry Reding
2014-09-23 11:31                 ` Tomi Valkeinen
2014-09-23 14:45                   ` Thierry Reding
2014-09-24  8:42                     ` Tomi Valkeinen
2014-10-06 14:40                       ` Laurent Pinchart
2014-10-07  7:06                         ` Tomi Valkeinen
2014-10-07  7:23                           ` Laurent Pinchart
2014-10-07  8:25                             ` Tomi Valkeinen [this message]
2014-10-07 16:14                               ` Laurent Pinchart
2014-09-22  7:54   ` Thierry Reding
2014-09-22 14:04     ` Tomi Valkeinen
2014-09-23  6:21       ` Thierry Reding
2014-09-23  9:30         ` Tomi Valkeinen
2014-09-23  9:53           ` Thierry Reding
2014-09-23 11:12             ` Laurent Pinchart
2014-09-23 14:50               ` Thierry Reding
2014-09-23 12:00             ` Tomi Valkeinen
2014-09-23 14:58               ` Thierry Reding
2014-09-24  9:08                 ` Tomi Valkeinen
2014-09-25  6:23                   ` Thierry Reding
2014-10-06 11:34                     ` Tomi Valkeinen
2014-10-06 13:55                       ` Laurent Pinchart
2014-09-23 10:02           ` Andrzej Hajda
2014-09-23 10:02           ` Andrzej Hajda
2014-09-23 11:10             ` Laurent Pinchart
2014-09-23 11:18               ` Andrzej Hajda
2014-09-23 11:23                 ` Laurent Pinchart
2014-09-23 11:47                   ` Andrzej Hajda
2014-09-23 11:52                     ` Laurent Pinchart
2014-09-23 12:40                       ` Andrzej Hajda
2014-09-23 12:40                       ` Andrzej Hajda
2014-09-23 14:49                       ` Thierry Reding
2014-10-06 14:38                         ` Laurent Pinchart

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