V4L/DVB: V4L: SuperH Video Output Unit (VOU) driver

A number of SuperH Mobile SoCs, including sh7724, include a Video Output Unit.
This patch adds a video (V4L2) output driver for it. The driver uses v4l2-subdev
and mediabus APIs to interface to TV encoders.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/Kconfig

@@ -520,6 +520,13 @@ config DISPLAY_DAVINCI_DM646X_EVM
 	  To compile this driver as a module, choose M here: the
 	  module will be called vpif_display.
 
+config VIDEO_SH_VOU
+	tristate "SuperH VOU video output driver"
+	depends on VIDEO_DEV && ARCH_SHMOBILE
+	select VIDEOBUF_DMA_CONTIG
+	help
+	  Support for the Video Output Unit (VOU) on SuperH SoCs.
+
 config CAPTURE_DAVINCI_DM646X_EVM
 	tristate "DM646x EVM Video Capture"
 	depends on VIDEO_DEV && MACH_DAVINCI_DM6467_EVM

drivers/media/video/Makefile

@@ -160,6 +160,10 @@ obj-$(CONFIG_VIDEO_MX3)			+= mx3_camera.o
 obj-$(CONFIG_VIDEO_PXA27x)		+= pxa_camera.o
 obj-$(CONFIG_VIDEO_SH_MOBILE_CEU)	+= sh_mobile_ceu_camera.o
 
+obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/
+
+obj-$(CONFIG_VIDEO_SH_VOU)		+= sh_vou.o
+
 obj-$(CONFIG_VIDEO_AU0828) += au0828/
 
 obj-$(CONFIG_USB_VIDEO_CLASS)	+= uvc/

include/media/sh_vou.h

+/*
+ * SuperH Video Output Unit (VOU) driver header
+ *
+ * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef SH_VOU_H
+#define SH_VOU_H
+
+#include <linux/i2c.h>
+
+/* Bus flags */
+#define SH_VOU_PCLK_FALLING	(1 << 0)
+#define SH_VOU_HSYNC_LOW	(1 << 1)
+#define SH_VOU_VSYNC_LOW	(1 << 2)
+
+enum sh_vou_bus_fmt {
+	SH_VOU_BUS_8BIT,
+	SH_VOU_BUS_16BIT,
+	SH_VOU_BUS_BT656,
+};
+
+struct sh_vou_pdata {
+	enum sh_vou_bus_fmt bus_fmt;
+	int i2c_adap;
+	struct i2c_board_info *board_info;
+	unsigned long flags;
+	char *module_name;
+};
+
+#endif