[RESEND PATCH v2 0/7] drm/vc4: VEC (SDTV) output support

Boris Brezillon boris.brezillon at free-electrons.com
Thu Dec 8 23:46:07 PST 2016

On Fri, 9 Dec 2016 08:22:37 +0100 (CET)
Stefan Wahren <stefan.wahren at i2se.com> wrote:

> Hi,
> > Boris Brezillon <boris.brezillon at free-electrons.com> hat am 2. Dezember 2016 um 14:48 geschrieben:
> > 
> > 
> > Sorry for the noise, but I forgot to Cc the DT maintainers.
> > 
> > Here is the 2nd version of the VC4/VEC series.
> > 
> > We still miss the two clock patches mentioned by Eric in the first
> > version to make the encoder work no matter the setting applied by the
> > bootloader.  
> are there any advices to test this feature?

Apply these patches [1][2][3][4] in addition to this series, and you
should see the SDTV output when running modetest (this is what I used
to test/debug the driver).

This is the command I use to test the SDTV output in NTSC mode

modetest -s 39:720x480

> Is it possible to use an old Raspberry Pi B (256 MB RAM) for this?

I did most of my test on a RPi-2, but IIRC, Eric tested it on a RPi
(don't know which model).

> Thanks
> Stefan


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