[media] v4l: s5p-tv: add SDO driver for Samsung S5P platform

Add drivers for Standard Definition output (SDO) on Samsung platforms
from S5P family. The driver provides control over streaming analog TV
via Composite connector.

Driver is using:
- v4l2 framework
- runtime PM

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/s5p-tv/Kconfig

@@ -46,4 +46,15 @@ config VIDEO_SAMSUNG_S5P_HDMIPHY
 	  as module. It is an I2C driver, that exposes a V4L2
 	  subdev for use by other drivers.
 
+config VIDEO_SAMSUNG_S5P_SDO
+	tristate "Samsung Analog TV Driver"
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on VIDEO_SAMSUNG_S5P_TV
+	help
+	  Say Y here if you want support for the analog TV output
+	  interface in S5P Samsung SoC. The driver can be compiled
+	  as module. It is an auxiliary driver, that exposes a V4L2
+	  subdev for use by other drivers. This driver requires
+	  hdmiphy driver to work correctly.
+
 endif # VIDEO_SAMSUNG_S5P_TV

drivers/media/video/s5p-tv/Makefile

@@ -10,4 +10,6 @@ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_HDMIPHY) += s5p-hdmiphy.o
 s5p-hdmiphy-y += hdmiphy_drv.o
 obj-$(CONFIG_VIDEO_SAMSUNG_S5P_HDMI) += s5p-hdmi.o
 s5p-hdmi-y += hdmi_drv.o
+obj-$(CONFIG_VIDEO_SAMSUNG_S5P_SDO) += s5p-sdo.o
+s5p-sdo-y += sdo_drv.o
 

drivers/media/video/s5p-tv/regs-sdo.h

@@ -0,0 +1,63 @@
+/* drivers/media/video/s5p-tv/regs-sdo.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * SDO register description file
+ *
+ * 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 SAMSUNG_REGS_SDO_H
+#define SAMSUNG_REGS_SDO_H
+
+/*
+ * Register part
+ */
+
+#define SDO_CLKCON			0x0000
+#define SDO_CONFIG			0x0008
+#define SDO_VBI				0x0014
+#define SDO_DAC				0x003C
+#define SDO_CCCON			0x0180
+#define SDO_IRQ				0x0280
+#define SDO_IRQMASK			0x0284
+#define SDO_VERSION			0x03D8
+
+/*
+ * Bit definition part
+ */
+
+/* SDO Clock Control Register (SDO_CLKCON) */
+#define SDO_TVOUT_SW_RESET		(1 << 4)
+#define SDO_TVOUT_CLOCK_READY		(1 << 1)
+#define SDO_TVOUT_CLOCK_ON		(1 << 0)
+
+/* SDO Video Standard Configuration Register (SDO_CONFIG) */
+#define SDO_PROGRESSIVE			(1 << 4)
+#define SDO_NTSC_M			0
+#define SDO_PAL_M			1
+#define SDO_PAL_BGHID			2
+#define SDO_PAL_N			3
+#define SDO_PAL_NC			4
+#define SDO_NTSC_443			8
+#define SDO_PAL_60			9
+#define SDO_STANDARD_MASK		0xf
+
+/* SDO VBI Configuration Register (SDO_VBI) */
+#define SDO_CVBS_WSS_INS		(1 << 14)
+#define SDO_CVBS_CLOSED_CAPTION_MASK	(3 << 12)
+
+/* SDO DAC Configuration Register (SDO_DAC) */
+#define SDO_POWER_ON_DAC		(1 << 0)
+
+/* SDO Color Compensation On/Off Control (SDO_CCCON) */
+#define SDO_COMPENSATION_BHS_ADJ_OFF	(1 << 4)
+#define SDO_COMPENSATION_CVBS_COMP_OFF	(1 << 0)
+
+/* SDO Interrupt Request Register (SDO_IRQ) */
+#define SDO_VSYNC_IRQ_PEND		(1 << 0)
+
+#endif /* SAMSUNG_REGS_SDO_H */