[PATCH] tuner-core.c improvments and Ymec Tvision TVF8533MF support

tuner-core.c, tuner.h:

- tuner-core changed to support multiple I2C devices used on some
  adapters;

- Kconfig now has an option (CONFIG_TUNER_MULTI_I2C) to enable this new
  behavor;

- By default, even enabling CONFIG_TUNER_MULTI_I2C, tuner-core emulates
  the old behavor, using first I2C device for both FM and TV;

- There is a new i2c command (TUNER_SET_ADDR) to allow tuner clients to
  select I2C address for FM or TV tuner;

- Tuner I2C dettach now generates a warning on syslog if failed.

tuner-simple.c:

- TVision TVF-8531MF and TVF-5533 MF tuner included.  It uses, by
  default, I2C on 0xC2 address for TV and on 0xC0 for Radio.  Both TV and
  FM Radio mode are working.

Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/media/tuner.h

@@ -98,6 +98,9 @@
 #define TUNER_PHILIPS_FQ1216AME_MK4 56 /* Hauppauge PVR-150 PAL */
 #define TUNER_PHILIPS_FQ1236A_MK4 57   /* Hauppauge PVR-500MCE NTSC */
 
+#define TUNER_YMEC_TVF_8531MF 58
+#define TUNER_YMEC_TVF_5533MF 59	/* Pixelview Pro Ultra NTSC */
+
 #define NOTUNER 0
 #define PAL     1	/* PAL_BG */
 #define PAL_I   2
@@ -121,8 +124,10 @@
 
 #define TUNER_SET_TYPE               _IOW('t',1,int)    /* set tuner type */
 #define TUNER_SET_TVFREQ             _IOW('t',2,int)    /* set tv freq */
+#define TUNER_SET_ADDR               _IOW('T',3,int)	/* Chooses tuner I2C address */
 
 #define  TDA9887_SET_CONFIG          _IOW('t',5,int)
+
 /* tv card specific */
 # define TDA9887_PRESENT             (1<<0)
 # define TDA9887_PORT1_INACTIVE      (1<<1)
@@ -143,6 +148,11 @@
 #define I2C_ADDR_TDA8290        0x4b
 #define I2C_ADDR_TDA8275        0x61
 
+struct tuner_addr {
+	enum v4l2_tuner_type type;
+	unsigned short addr;
+};
+
 struct tuner {
 	/* device */
 	struct i2c_client i2c;