On 2012-01-19 10:08, Gary Thomas wrote:
On 2012-01-19 07:36, Gary Thomas wrote:
On 2012-01-19 07:11, Javier Martinez Canillas wrote:
On Thu, Jan 19, 2012 at 2:35 PM, Gary Thomas<g...@mlbassoc.com> wrote:
On 2012-01-19 06:28, Laurent Pinchart wrote:
Hi Gary,
On Thursday 19 January 2012 14:13:53 Gary Thomas wrote:
On 2012-01-19 05:50, Laurent Pinchart wrote:
On Thursday 19 January 2012 13:41:57 Gary Thomas wrote:
On 2012-01-17 08:33, Laurent Pinchart wrote:
<snip>
I already had a couple of YUV support patches in my OMAP3 ISP tree at
git.kernel.org. I've rebased them on top of the lastest V4L/DVB tree
and pushed them to
http://git.linuxtv.org/pinchartl/media.git/shortlog/refs/heads/omap3isp
- omap3isp-yuv. Could you please try them, and see if they're usable
with your sensor ?
I just tried this kernel with my board. The media control
infrastructure comes up and all of the devices are created, but I can't
access them.
From the bootup log:
Linux media interface: v0.10
Linux video capture interface: v2.00
Any message from the omap3isp driver and from the sensor driver ?
No, it doesn't appear that the sensor was probed (or maybe it failed but
no messages). I'll check into this.
Is the omap3-isp driver compiled as a module ? If so, make sure iommu2.ko
is
loaded first. 'rmmod omap3-isp&& modprobe iommu2&& modprobe omap3-isp'
is a
quick way to test it.
I have everything compiled in - no modules.
At least for me, it only worked when compiled both the omap3-isp and
tvp5150 drivers as a module. If I compile them built-in, it fails.
Can you share your board/sensor init code from your board-init.c
so I can see how to manage this as a module?
n.b. I really don't like messing with modules - it used to work
fine, so IMO it should continue to do so.
I figured out part of the problem - I had tried to reuse my 3.0 kernel
config. Sadly, this left out major chunks, in particular the OMAP3ISP
was left out because OMAP_IOVMMU is new. I got this configured and it's
starting to initialize, but now it fails during boot:
kernel BUG at /local/pinchartl-media/drivers/media/media-entity.c:348
[<c02416c4>] (media_entity_create_link+0x60/0x138) from [<c0251c0c>]
(isp_probe+0x938/0xba4)
[<c0251c0c>] (isp_probe+0x938/0xba4) from [<c01e381c>]
(platform_drv_probe+0x1c/0x24)
[<c01e381c>] (platform_drv_probe+0x1c/0x24) from [<c01e24f4>]
(driver_probe_device+0xcc/0x1b4)
[<c01e24f4>] (driver_probe_device+0xcc/0x1b4) from [<c01e1a0c>]
(bus_for_each_drv+0x4c/0x8c)
[<c01e1a0c>] (bus_for_each_drv+0x4c/0x8c) from [<c01e2750>]
(device_attach+0x74/0xa0)
[<c01e2750>] (device_attach+0x74/0xa0) from [<c01e1838>]
(bus_probe_device+0x28/0x50)
[<c01e1838>] (bus_probe_device+0x28/0x50) from [<c01e07f8>]
(device_add+0x40c/0x590)
[<c01e07f8>] (device_add+0x40c/0x590) from [<c01e3e44>]
(platform_device_add+0x108/0x168)
[<c01e3e44>] (platform_device_add+0x108/0x168) from [<c0457c84>]
(cobra3530p73_camera_init+0x13c/0x188)
[<c0457c84>] (cobra3530p73_camera_init+0x13c/0x188) from [<c0008730>]
(do_one_initcall+0x94/0x15c)
[<c0008730>] (do_one_initcall+0x94/0x15c) from [<c044d21c>]
(kernel_init+0x78/0x120)
[<c044d21c>] (kernel_init+0x78/0x120) from [<c00146c8>]
(kernel_thread_exit+0x0/0x8)
Any ideas what else I might have missed? My kernel config is attached in case
that helps.
It turns out that drivers/media/video/tvp5150.c is not the most
recent one posted - it has no v4l2_subdev support in it at all :-(
I copied the one I've been using from my 3.0+ kernel and it
now builds. I can run media-ctl and configure the pipeline,
etc, but sadly no data is captured at all :-(
--
------------------------------------------------------------
Gary Thomas | Consulting for the
MLB Associates | Embedded world
------------------------------------------------------------
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