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

[Javier Martin]

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)
+{
+	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