[media] media: coda: Add driver for Coda video codec

Coda is a range of video codecs from Chips&Media that
support H.264, H.263, MPEG4 and other video standards.

Currently only support for the codadx6 included in the
i.MX27 SoC is added. H.264 and MPEG4 video encoding
are the only supported capabilities by now.

[mchehab@redhat.com: Add missing include linux/of.h]
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Reviewed-by: Philipp Zabel<p.zabel@pengutronix.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/Kconfig

@@ -1224,6 +1224,15 @@ config VIDEO_MEM2MEM_TESTDEV
 	  This is a virtual test device for the memory-to-memory driver
 	  framework.
 
+config VIDEO_CODA
+	tristate "Chips&Media Coda multi-standard codec IP"
+	depends on VIDEO_DEV && VIDEO_V4L2
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	---help---
+	   Coda is a range of video codec IPs that supports
+	   H.264, MPEG-4, and other video formats.
+
 config VIDEO_SAMSUNG_S5P_G2D
 	tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
 	depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P

drivers/media/video/Makefile

@@ -188,6 +188,7 @@ obj-$(CONFIG_VIDEO_OMAP1)		+= omap1_camera.o
 obj-$(CONFIG_VIDEO_ATMEL_ISI)		+= atmel-isi.o
 
 obj-$(CONFIG_VIDEO_MX2_EMMAPRP)		+= mx2_emmaprp.o
+obj-$(CONFIG_VIDEO_CODA) 			+= coda.o
 
 obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) 	+= s5p-fimc/
 obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG)	+= s5p-jpeg/