staging: drm/imx: Add i.MX IPUv3 crtc support

This adds a i.MX51/53/6 IPU (Image Processing Unit) KMS driver. The
driver has been tested on the i.MX51 babbage board, the i.MX53 LOCO
board and the i.MX6q sabrelite board in different clone mode and dual
head setups.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/imx-drm/Kconfig

@@ -27,3 +27,9 @@ config DRM_IMX_IPUV3_CORE
 	  Choose this if you have a i.MX5/6 system and want
 	  to use the IPU. This option only enables IPU base
 	  support.
+
+config DRM_IMX_IPUV3
+	tristate "DRM Support for i.MX IPUv3"
+	depends on DRM_IMX
+	help
+	  Choose this if you have a i.MX5 or i.MX6 processor.

drivers/staging/imx-drm/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_DRM_IMX) += imxdrm.o
 obj-$(CONFIG_DRM_IMX_PARALLEL_DISPLAY) += parallel-display.o
 obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o
 obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
+obj-$(CONFIG_DRM_IMX_IPUV3)	+= ipuv3-crtc.o