[PATCH v2 1/2] MX2: Add platform definitions for eMMa-PrP device.

[Sascha Hauer]

On Tue, Nov 22, 2011 at 01:01:55PM +0100, Javier Martin wrote:
> eMMa-PrP device included in Freescale i.MX2 chips can also
> be used separately to process memory buffers.
> 
> Signed-off-by: Javier Martin <javier.martin at vista-silicon.com>
> ---
>  arch/arm/mach-imx/devices-imx27.h               |    2 +
>  arch/arm/plat-mxc/devices/platform-mx2-camera.c |   33 +++++++++++++++++++++++
>  arch/arm/plat-mxc/include/mach/devices-common.h |    2 +
>  3 files changed, 37 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/devices-imx27.h b/arch/arm/mach-imx/devices-imx27.h
> index 2f727d7..519aa36 100644
> --- a/arch/arm/mach-imx/devices-imx27.h
> +++ b/arch/arm/mach-imx/devices-imx27.h
> @@ -50,6 +50,8 @@ extern const struct imx_imx_uart_1irq_data imx27_imx_uart_data[];
>  extern const struct imx_mx2_camera_data imx27_mx2_camera_data;
>  #define imx27_add_mx2_camera(pdata)	\
>  	imx_add_mx2_camera(&imx27_mx2_camera_data, pdata)
> +#define imx27_alloc_mx2_emmaprp(pdata)	\
> +	imx_alloc_mx2_emmaprp(&imx27_mx2_camera_data)
>  
>  extern const struct imx_mxc_ehci_data imx27_mxc_ehci_otg_data;
>  #define imx27_add_mxc_ehci_otg(pdata)	\
> diff --git a/arch/arm/plat-mxc/devices/platform-mx2-camera.c b/arch/arm/plat-mxc/devices/platform-mx2-camera.c
> index b3f4828..4a8bd73 100644
> --- a/arch/arm/plat-mxc/devices/platform-mx2-camera.c
> +++ b/arch/arm/plat-mxc/devices/platform-mx2-camera.c
> @@ -6,6 +6,7 @@
>   * the terms of the GNU General Public License version 2 as published by the
>   * Free Software Foundation.
>   */
> +#include <linux/dma-mapping.h>
>  #include <mach/hardware.h>
>  #include <mach/devices-common.h>
>  
> @@ -62,3 +63,35 @@ struct platform_device *__init imx_add_mx2_camera(
>  			res, data->iobaseemmaprp ? 4 : 2,
>  			pdata, sizeof(*pdata), DMA_BIT_MASK(32));
>  }
> +
> +struct platform_device *__init imx_alloc_mx2_emmaprp(
> +		const struct imx_mx2_camera_data *data)

Why only alloc and not register?

> +{
> +	struct resource res[] = {
> +		{
> +			.start = data->iobaseemmaprp,
> +			.end = data->iobaseemmaprp + data->iosizeemmaprp - 1,
> +			.flags = IORESOURCE_MEM,
> +		}, {
> +			.start = data->irqemmaprp,
> +			.end = data->irqemmaprp,
> +			.flags = IORESOURCE_IRQ,
> +		},
> +	};
> +	struct platform_device *pdev;
> +	int ret = -ENOMEM;
> +
> +	pdev = platform_device_alloc("m2m-emmaprp", 0);
> +	if (!pdev)
> +		goto err;
> +
> +	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
> +	if (ret)
> +		goto err;
> +
> +	return pdev;
> +err:
> +	platform_device_put(pdev);
> +	return ERR_PTR(-ENODEV);
> +
> +}
> diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
> index def9ba5..ce64bd5 100644
> --- a/arch/arm/plat-mxc/include/mach/devices-common.h
> +++ b/arch/arm/plat-mxc/include/mach/devices-common.h
> @@ -223,6 +223,8 @@ struct imx_mx2_camera_data {
>  struct platform_device *__init imx_add_mx2_camera(
>  		const struct imx_mx2_camera_data *data,
>  		const struct mx2_camera_platform_data *pdata);
> +struct platform_device *__init imx_alloc_mx2_emmaprp(
> +		const struct imx_mx2_camera_data *data);
>  
>  #include <mach/mxc_ehci.h>
>  struct imx_mxc_ehci_data {
> -- 
> 1.7.0.4
> 
> 

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