Re: First pass at DT-probed mmp-camera

2012-08-29 Thread Daniel Drake
On Wed, Aug 29, 2012 at 2:22 PM, Martin Langhoff
 wrote:
> We'll be probably qualifying siv120d for XO-4 production as well. How
> do we handle this situation?
>
> So far, OFW didn't need to know which one was installed; the
> mmp-camera driver was loading both ov7670 and siv120d. Can we do
> something similar now with DT?

OFW and the DT already knows. This just needs testing/tweaking in linux.

Daniel
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Re: First pass at DT-probed mmp-camera

2012-08-29 Thread Martin Langhoff
On Wed, Aug 29, 2012 at 1:59 PM, Daniel Drake  wrote:
> In the end it turns out it does make sense for the sensor (accessible
> under /camera-i2c) and the camera (/camera) to be separate.
> But Mitch identified the optimal DT layout where the sensor is defined
> in the DT at /camera-i2c/image-sensor, which causes i2c-gpio to probe
> the ov7670 driver directly.

We'll be probably qualifying siv120d for XO-4 production as well. How
do we handle this situation?

So far, OFW didn't need to know which one was installed; the
mmp-camera driver was loading both ov7670 and siv120d. Can we do
something similar now with DT?

cheers,


m
-- 
 martin.langh...@gmail.com
 mar...@laptop.org -- Software Architect - OLPC
 - ask interesting questions
 - don't get distracted with shiny stuff  - working code first
 - http://wiki.laptop.org/go/User:Martinlanghoff
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Re: First pass at DT-probed mmp-camera

2012-08-29 Thread Daniel Drake
In the end it turns out it does make sense for the sensor (accessible
under /camera-i2c) and the camera (/camera) to be separate.
But Mitch identified the optimal DT layout where the sensor is defined
in the DT at /camera-i2c/image-sensor, which causes i2c-gpio to probe
the ov7670 driver directly.

Pushed to arm-3.5 as f90ea58b3b94fa1597a548817d3c78de15ea8219 and the
OFW bits are in OFW svn.
More info in the commit message.

It's working on XO-1.75 with ov7670. I'm not sure what the status of
the isp island XO-4 code is; once that is done, this code should
hopefully start working there.

Daniel
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