Re: [PATCH v2 2/2] media: soc_camera: pxa_camera device-tree support

[Mark Rutland <mark.rutland@arm.com>]

On Sat, Jun 21, 2014 at 11:21:47PM +0100, Robert Jarzmik wrote:
> Add device-tree support to pxa_camera host driver.
> 
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
> ---
>  drivers/media/platform/soc_camera/pxa_camera.c | 77 +++++++++++++++++++++++++-
>  1 file changed, 75 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c
> index d4df305..8c9de9e 100644
> --- a/drivers/media/platform/soc_camera/pxa_camera.c
> +++ b/drivers/media/platform/soc_camera/pxa_camera.c
> @@ -34,6 +34,7 @@
>  #include <media/videobuf-dma-sg.h>
>  #include <media/soc_camera.h>
>  #include <media/soc_mediabus.h>
> +#include <media/v4l2-of.h>
>  
>  #include <linux/videodev2.h>
>  
> @@ -1650,6 +1651,64 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
>  	.set_bus_param	= pxa_camera_set_bus_param,
>  };
>  
> +static int pxa_camera_pdata_from_dt(struct device *dev,
> +				    struct pxa_camera_dev *pcdev)
> +{
> +	int err = 0;
> +	struct device_node *np = dev->of_node;
> +	struct v4l2_of_endpoint ep;
> +
> +	err = of_property_read_u32(np, "clock-frequency",
> +				   (u32 *)&pcdev->mclk);

That cast is either unnecessary or this code is broken.

Use a temporary u32 if the types don't match.

Mark.