linux-kernel - RE: mx3-camera

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Message-ID: <Pine.LNX.4.64.1203061427560.9300@axis700.grange>
Date:	Tue, 6 Mar 2012 14:30:31 +0100 (CET)
From:	Guennadi Liakhovetski <g.liakhovetski@....de>
To:	Alex Gershgorin <alexg@...rolight.com>
cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux Media Mailing List <linux-media@...r.kernel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: RE: mx3-camera

On Tue, 6 Mar 2012, Alex Gershgorin wrote:

>  Thanks Guennadi, 
> 
> >Hi Alex
> 
> >(adding v4l and Sascha to CC)
> 
> >On Tue, 6 Mar 2012, Alex Gershgorin wrote:
> 
> > Hi Guennadi,
> >
> > I'm working on I.MX35 PDK platform with use 3.3.0-rc6 version of the Linux Kernel.
> > Here is my Kernel boot message
> >
> > "Linux video capture interface: v2.00
> > mx3-camera: probe of mx3-camera.0 failed with error -2"
> >
> > This error comes from probe function of mx3 camera host driver.
> > Precisely in this part of the code:
> >
> > mx3_cam->clk = clk_get(&pdev->dev, NULL);
> > if (IS_ERR(mx3_cam->clk)) {
> >       err = PTR_ERR(mx3_cam->clk);
> >       goto eclkget;
> > }
> 
> >I think, the reason is, that the i.MX35 platform doesn't register a camera
> >clock, similar to i.MX31 (arch/arm/mach-imx/clock-imx31.c):
> 
>  >       _REGISTER_CLOCK("mx3-camera.0", NULL, csi_clk)
> 
> In i.MX35 (arch/arm/mach-imx/clock-imx35.c) it looks like this:
> 
> _REGISTER_CLOCK(NULL, "csi", csi_clk)

Right, so, you'll have to convert it to a suitable form, test and submit 
to Sascha;-)

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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