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From: Eric Nelson <eric.nelson@boundarydevices.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] imx: nitrogen6x: mx6qsabrelite: Add support for DVI monitors
Date: Tue, 23 Jul 2013 15:12:33 -0700	[thread overview]
Message-ID: <51EEFFD1.7040901@boundarydevices.com> (raw)
In-Reply-To: <CAOMZO5BkbwHXXOYQ5DCAaa-=nnwD=iR5S4o3qhdOL3q0k7+rsQ@mail.gmail.com>

Hi Fabio,

On 07/23/2013 02:46 PM, Fabio Estevam wrote:
> Hi Eric,
>
> On Tue, Jul 23, 2013 at 6:43 PM, Eric Nelson
> <eric.nelson@boundarydevices.com> wrote:
>
>> A little background is probably appropriate for this patch.
>>
>> Since "the beginning" of usage of the SABRE Lite and Nitrogen6x
>> boards, DVI detection has been somewhat broken.
>>
>> Some (most) DVI monitors don't produce the "HPD" bit in
>> the PHY_STAT0 register, but do show proper toggling of the
>> RX_SENSE0..3 bits.
>>
>> Creating a new the bit-mask to include all five bits and
>> modifying the 'hdmidet' command and internal detection
>> routines allows these monitors to function properly in U-Boot.
>>
>> A related patch to our kernels allows things to work under
>> Linux:
>>
>> https://github.com/boundarydevices/linux-imx6/commit/7d8752905c118af9063738a533227de0b2f6ecd4
>
> Thanks for the excellent explanation and for finding the root cause!
>
> It would be really nice if Robert could send a v2 adding your text
> into the commit log.
>

Seems to be already done.

Also note that this patch will be smaller with a V3 of your patch
collapsing SABRE Lite into the nitrogen6x/ tree (nudge nudge)...

Regards,


Eric

      reply	other threads:[~2013-07-23 22:12 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-22 20:33 [U-Boot] [PATCH] imx: nitrogen6x: mx6qsabrelite: Add support for DVI monitors Robert Winkler
2013-07-23 21:43 ` Eric Nelson
2013-07-23 21:46   ` Fabio Estevam
2013-07-23 22:12     ` Eric Nelson [this message]

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