[PATCH 2/2] pcm038 lcdc support

Dave Airlie airlied at gmail.com
Tue May 22 06:02:37 EDT 2012


On Fri, May 18, 2012 at 4:13 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> On Fri, May 18, 2012 at 10:03:54AM -0400, Adam Jackson wrote:
>> On Fri, 2012-05-18 at 14:27 +0200, Sascha Hauer wrote:
>>
>> > +                   edid = [00 ff ff ff ff ff ff 00 4c 2d 6c 03 36 32 49 4b
>> > +                           0f 13 01 03 80 37 22 a0 2a fe 21 a8 53 37 ae 24
>> > +                           11 50 54
>> > +
>> > +                           /* est timings */
>> > +                           00 00 00
>> > +
>> > +                           /* std timings */
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +                           00 00
>> > +
>> > +                           /* detailed timings */
>> > +                           05 0D 20 A0 30 58 1C 20 28 20 14 00 26 57 21 00 00 1E
>> > +                           00 00 00 fd 00 32 4b 1b 51 11 00 0a 20 20 20 20 20 20
>> > +                           00 00 00 fc 00 53 79 6e 63 4d 61 73 74 65 72 0a 20 20
>> > +                           00 00 00 ff 00 48 39 58 53 34 30 30 34 34 32 0a 20 20
>> > +                           00 20];
>>
>> This EDID block claims to be a Samsung SyncMaster, which isn't really
>> the right thing to do.  The question is what to call it instead.  Red
>> Hat has a PNP ID we can use for virtual EDID blocks like this if we
>> want, I'd want to set up a little database to keep track of them but
>> that's pretty trivial.
>
> Sorry, should have mentioned this in the commit log. This in fact is a
> hacked version of my office monitor. This patch is more meant as a usage
> example and not for upstream. I don't know yet if it's even acceptable
> to put edid data into the devicetree. I saw some discussion about it,
> but also about some generic display description, which I would prefer.
>
> BTW is there a more convenient tool than a hex editor around to generate
> edid data? I only found some windows tools

Some basic stuff in Documentation/EDID/ but yeah don't know of
anything graphical for Linux.

Dave.



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