linux-kernel - Re: [PATCH] drm: i2c: tda998x: Retry fetching the EDID if it fails first time.

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Message-ID: <54783A2F.5010405@arm.com>
Date:	Fri, 28 Nov 2014 09:02:39 +0000
From:	Andrew Jackson <Andrew.Jackson@....com>
To:	Jean-Francois Moine <moinejf@...e.fr>
CC:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Dave Airlie <airlied@...il.com>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Liviu Dudau <Liviu.Dudau@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] drm: i2c: tda998x: Retry fetching the EDID if it fails
 first time.

On 11/28/14 08:19, Jean-Francois Moine wrote:
> On Tue, 18 Nov 2014 17:41:26 +0000
> Andrew Jackson <Andrew.Jackson@....com> wrote:
> 
>> Fetching the EDID from a connected monitor is an automated thing
>> with NXP TDA19988. But on some boards the fetching fails for the
>> first time silently without any indication that an error has occured.
>> More than that, subsequent fetches of the EDID succeed until the
>> monitor(s) are unplugged.
>>
>> Add a function to validate the read EDID and retry if the block
>> retrieved is not valid.
>>
>> Signed-off-by: Andrew Jackson <Andrew.Jackson@....com>
>> Signed-off-by: Liviu Dudau <Liviu.Dudau@....com>
> 
> It seems that your patch is deprecated by Laurent Pinchart's
> 	[PATCH] drm: tda998x: Use drm_do_get_edid()
> http://lists.freedesktop.org/archives/dri-devel/2014-November/072906.html
> 

Thank you for the heads-up, I'd not seen that.  I'll consider how my patch might be modified to suit the new infrastructure.

    Andrew

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