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V4L/DVB: Fix default state Beholder H6 tuner

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The hybrid tuner FMD1216MEX_MK3 after cold start has disabled IF. This
tuner has internal I2C switch. This switch switch I2C bus between DVB-T
and IF part. Default state is DVB-T. When module saa7134 is load it
can't find IF tda9887 and disable analog TV mode.

Sets internal I2C switch of the tuner to IF by send special value to the
tuner as for receive analog TV from low band. It can be usefule for
other cards.

I didn't set configure a tuner by a tuner model because this tuner can
have different I2C address. May be we can do it later after discuss for
more robust support a tuners.

Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dmitri Belimov 2010-03-30 03:02:17 -03:00 committed by Mauro Carvalho Chehab
parent b57f432c28
commit b400f09246
1 changed files with 17 additions and 0 deletions
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17
drivers/media/video/saa7134/saa7134-cards.c
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@ -7366,6 +7366,23 @@ int saa7134_board_init2(struct saa7134_dev *dev)
}
break;
}
case SAA7134_BOARD_BEHOLD_H6:
{
u8 data[] = { 0x09, 0x9f, 0x86, 0x11};
struct i2c_msg msg = {.addr = 0x61, .flags = 0, .buf = data,
.len = sizeof(data)};
/* The tuner TUNER_PHILIPS_FMD1216MEX_MK3 after hardware */
/* start has disabled IF and enabled DVB-T. When saa7134 */
/* scan I2C devices it not detect IF tda9887 and can`t */
/* watch TV without software reboot. For solve this problem */
/* switch the tuner to analog TV mode manually. */
if (i2c_transfer(&dev->i2c_adap, &msg, 1) != 1)
printk(KERN_WARNING
"%s: Unable to enable IF of the tuner.\n",
dev->name);
break;
}
} /* switch() */
/* initialize tuner */