Re: mx2_camera driver on mx27ipcam: dma_alloc_coherent size failed

["Jan Pohanka" <xhpohanka@gmail.com>]

Dear Uwe,
which repository should I search 90026c8c823bff54172eab33a5e7fcecfd3df635  
in? I have not found it in git.pengutronix.de/git/imx/linux-2.6.git nor in  
vanilla sources.

regards Jan

Dne Fri, 29 Jul 2011 11:23:12 +0200 Uwe Kleine-König  
<u.kleine-koenig@pengutronix.de> napsal(a):

> Hi Jan,
>
> On Fri, Jul 29, 2011 at 10:59:55AM +0200, Jan Pohanka wrote:
>> thank you for answer. You are right I give no memory to camera
>> device in mach-imx27ipcam.c. I have tried to do it in same way as it
>> is in mach-pcm037.c but no success. Here is my init function
>>
>> static int __init mx27ipcam_camera_init(void) {
>> 	int dma, ret = -ENOMEM;
>> 	struct platform_device *pdev;
>>
>> 	printk("MX2 camera initialization.\n");
>>
>> 	pdev = imx27_add_mx2_camera(&mx27ipcam_camera);
>>
>> 	if (IS_ERR(pdev)) {
>> 		printk("pdev error\n");
>> 		return PTR_ERR(pdev);
>> 	}
>>
>> 	dma = dma_declare_coherent_memory(&pdev->dev,
>> 					mx2_camera_base, mx2_camera_base,
>> 					MX2_CAMERA_BUF_SIZE,
>> 					DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
>> 	if (!(dma & DMA_MEMORY_MAP))
>> 		goto err;
>>
>>
>> 	ret = platform_device_add(pdev);
>> 	if (ret) {
>> 		printk("platform_device_add error\n");
>>
>> err:
>> 		platform_device_put(pdev);
>> 	}
>>
>> 	return ret;
>> }
> and you also have a reserve callback? See commit
> 90026c8c823bff54172eab33a5e7fcecfd3df635 for all details.
>
> Best regards
> Uwe
>


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