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V4L/DVB (6180): tuner: don't probe 0x6b or 0x6f on cx88 boards

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Ignore 0x6b and 0x6f on cx88 boards. Some FusionHDTV cards
have an ir receiver at 0x6b and an RTC at 0x6f which can
get corrupted if probed.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2007-08-24 01:13:07 -03:00 committed by Mauro Carvalho Chehab
parent 3c44358c49
commit a1dec5160d
1 changed files with 21 additions and 0 deletions
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21
drivers/media/video/tuner-core.c
View file

@ -661,6 +661,27 @@ static int tuner_probe(struct i2c_adapter *adap)
normal_i2c[1] = I2C_CLIENT_END;
}
/* HACK: Ignore 0x6b and 0x6f on cx88 boards.
* FusionHDTV5 RT Gold has an ir receiver at 0x6b
* and an RTC at 0x6f which can get corrupted if probed.
*/
if (adap->id == I2C_HW_B_CX2388x) {
unsigned int i = 0;
while (i < I2C_CLIENT_MAX_OPTS && ignore[i] != I2C_CLIENT_END)
i += 2;
if (i + 4 < I2C_CLIENT_MAX_OPTS) {
ignore[i+0] = adap->nr;
ignore[i+1] = 0x6b;
ignore[i+2] = adap->nr;
ignore[i+3] = 0x6f;
ignore[i+4] = I2C_CLIENT_END;
} else
printk(KERN_WARNING "tuner: "
"too many options specified "
"in i2c probe ignore list!\n");
}
default_mode_mask = T_RADIO | T_ANALOG_TV | T_DIGITAL_TV;
if (adap->class & I2C_CLASS_TV_ANALOG)