From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Jan Pohanka <xhpohanka@gmail.com>
Cc: linux-media@vger.kernel.org, s.hauer@pengutronix.de
Subject: Re: mx2_camera driver on mx27ipcam: dma_alloc_coherent size failed
Date: Thu, 4 Aug 2011 15:25:00 +0200 [thread overview]
Message-ID: <20110804132500.GF31521@pengutronix.de> (raw)
In-Reply-To: <op.vzoxkxheyxxkfz@localhost.localdomain>
Hello Jan,
On Thu, Aug 04, 2011 at 03:11:11PM +0200, Jan Pohanka wrote:
> Dear Uwe,
> could you please give me some advice once more? It seems I'm not
> able to make mx2_camera working by myself.
> I have tried dma memory allocation in my board file in several ways,
> but nothing seems to work. I use Video capture example for v4l2 for
> testing.
>
> regards
> Jan
>
> mx27ipcam_camera_power: 1
> mx27ipcam_camera_reset
> mx2-camera mx2-camera.0: Camera driver attached to camera 0
> mx2-camera mx2-camera.0: dma_alloc_coherent size 614400 failed
> mmap error 12, Cannot allocate memory
> mx2-camera mx2-camera.0: Camera driver detached from camera 0
> mx27ipcam_camera_power: 0
Cannot say offhand. I'd instrument dma_alloc_from_coherent to check
where it fails.
The patch looks OK from a first glance.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2011-08-04 13:25 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-29 7:31 mx2_camera driver on mx27ipcam: dma_alloc_coherent size failed Jan Pohanka
2011-07-29 7:51 ` Uwe Kleine-König
2011-07-29 8:59 ` Jan Pohanka
2011-07-29 9:23 ` Uwe Kleine-König
2011-07-29 10:14 ` Jan Pohanka
2011-07-29 11:57 ` Uwe Kleine-König
2011-08-01 6:58 ` Jan Pohanka
2011-08-04 13:11 ` Jan Pohanka
2011-08-04 13:25 ` Uwe Kleine-König [this message]
2011-08-05 7:21 ` Jan Pohanka
2011-08-05 7:28 ` Uwe Kleine-König
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