linux-kernel - Re: mx3-camera

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Message-ID: <Pine.LNX.4.64.1203061406500.9300@axis700.grange>
Date:	Tue, 6 Mar 2012 14:11:07 +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

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)

Thanks
Guennadi

> I will be glad for any help.
> 
> Regards,
> Alex Gershgorin

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