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V4L/DVB (10151): Fix I2C bridge error in zl10353

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Fix I2C bridge error in zl10353 if no tunner attached to internal I2C
bus of zl10353 chip.

When set enable bridge from internal I2C bus to the main I2C bus
(saa7134) the main I2C bus stopped very hardly. No any communication. In
our next board we solder additional resistors to internal I2C bus.

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 2008-12-23 03:50:09 -03:00 committed by Mauro Carvalho Chehab
parent 91f7c130c2
commit 899a6f67b9
1 changed files with 7 additions and 0 deletions
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7
drivers/media/dvb/frontends/zl10353.c
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@ -587,8 +587,15 @@ static int zl10353_init(struct dvb_frontend *fe)
static int zl10353_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
{
struct zl10353_state *state = fe->demodulator_priv;
u8 val = 0x0a;
if (state->config.no_tuner) {
/* No tuner attached to the internal I2C bus */
/* If set enable I2C bridge, the main I2C bus stopped hardly */
return 0;
}
if (enable)
val |= 0x10;