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
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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