Re: omap3isp device tree support

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Hi Laurant,

On 01/07/2014 05:59 PM, Laurent Pinchart wrote:
> Hi Enrico,
> 
> On Friday 03 January 2014 12:30:33 Enrico wrote:
>> On Wed, Dec 18, 2013 at 11:09 AM, Enrico wrote:
>>> On Tue, Dec 17, 2013 at 2:11 PM, Florian Vaussard wrote:
>>>> So I converted the iommu to DT (patches just sent),
> 
> Florian, I've used your patches as a base for OMAP3 ISP DT work and they seem 
> pretty good (although patch 1/7 will need to be reworked, but that's not a 
> blocker). I've just had to fix a problem with the OMAP3 IOMMU, please see
> 
> http://git.linuxtv.org/pinchartl/media.git/commit/d3abafde0277f168df0b2912b5d84550590d80b2
> 

According to the comments on the IOMMU/DT patches [1], some work is
still needed to merge these patches, mainly to support other IOMMUs
(OMAP4, OMAP5). So the current base is probably ok. I will resume my
work on this soon. What are your comments on patch 1?

I briefly looked at your fix, seems ok to me. I do not figure out how it
worked for me. I will look at it closer next week.

> I'd appreciate your comments on that. I can post the patch already if you 
> think that would be helpful.
> 

It is probably better to wait for the v2 of the iommu series. I can
include your patch in it.

> You can find my work-in-progress branch at
> 
> http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp/dt
> 
> (the last three patches are definitely not complete yet).
> 

Great news! A while ago, Sebastian Reichel (in CC) posted an RFC for the
binding [2]. Are you working with him on this?

Regards,

Florian

[1] https://lkml.org/lkml/2013/12/17/197
[2] http://thread.gmane.org/gmane.linux.drivers.devicetree/50580
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