Visstrim_M10 have a tvp5150 whose video output must be deinterlaced.
The new mem2mem deinterlacing driver is very useful for that purpose.
Signed-off-by: Javier Martin <javier.mar...@vista-silicon.com>
---
Changes since v1:
- Removed commented out code.
---
arch/arm/mach-imx/mach-imx27_visstrim_m10.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index 214e4ff..dbef59d 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -232,7 +232,7 @@ static void __init visstrim_camera_init(void)
static void __init visstrim_reserve(void)
{
/* reserve 4 MiB for mx2-camera */
- mx2_camera_base = arm_memblock_steal(2 * MX2_CAMERA_BUF_SIZE,
+ mx2_camera_base = arm_memblock_steal(3 * MX2_CAMERA_BUF_SIZE,
MX2_CAMERA_BUF_SIZE);
}
@@ -419,6 +419,30 @@ static void __init visstrim_coda_init(void)
return;
}
+/* DMA deinterlace */
+static struct platform_device visstrim_deinterlace = {
+ .name = "m2m-deinterlace",
+ .id = 0,
+};
+
+static void __init visstrim_deinterlace_init(void)
+{
+ int ret = -ENOMEM;
+ struct platform_device *pdev = &visstrim_deinterlace;
+ int dma;
+
+ ret = platform_device_register(pdev);
+
+ dma = dma_declare_coherent_memory(&pdev->dev,
+ mx2_camera_base + 2 *
MX2_CAMERA_BUF_SIZE,
+ mx2_camera_base + 2 *
MX2_CAMERA_BUF_SIZE,
+ MX2_CAMERA_BUF_SIZE,
+ DMA_MEMORY_MAP |
DMA_MEMORY_EXCLUSIVE);
+ if (!(dma & DMA_MEMORY_MAP))
+ return;
+}
+
+
static void __init visstrim_m10_revision(void)
{
int exp_version = 0;
@@ -481,6 +505,7 @@ static void __init visstrim_m10_board_init(void)
platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
&iclink_tvp5150, sizeof(iclink_tvp5150));
gpio_led_register_device(0, &visstrim_m10_led_data);
+ visstrim_deinterlace_init();
visstrim_camera_init();
visstrim_coda_init();
}
--
1.7.9.5
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