Re: [PATCH v4 6/8] media: rcar-vin: initialize EDID data

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Ulrich,

On 05/13/2016 10:36 AM, Hans Verkuil wrote:
> On 05/11/2016 04:02 PM, Ulrich Hecht wrote:
>> Initializes the decoder subdevice with a fixed EDID blob.
>>
>> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@xxxxxxxxx>
> 
> Nacked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> 
> Instead implement the g/s_edid ioctls.
> 
> You truly cannot default to an EDID. When an EDID is set the HPD will go high.
> But you don't know the EDID here, the contents of the EDID is something that
> only userspace will know depending on the type of device you're building.
> 
> In practice userspace will overwrite the EDID with the real one and so the HPD
> will go down and up again. And while transmitters are supposed to handle that
> cleanly, in reality this is a different story.
> 
> Just add the g/s_edid ioctls and you can use 'v4l2-ctl --set-edid=edid=hdmi' to
> fill in a default EDID.
> 
> I won't accept this patch since I know from my own experience that this doesn't
> work.

I haven't seen a follow-up on this. Can you do a v5? It's likely that will be the
last version and I can commit this.

Thanks!

	Hans
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux