From d149837768a0043157da6e1e09a30cb52c314e48 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 23 Dec 2008 06:50:09 +0000 Subject: Fix I2C bridge error in zl10353 From: Dmitri Belimov 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 Signed-off-by: Mauro Carvalho Chehab --- linux/drivers/media/dvb/frontends/zl10353.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'linux/drivers/media/dvb') diff --git a/linux/drivers/media/dvb/frontends/zl10353.c b/linux/drivers/media/dvb/frontends/zl10353.c index 2e449a457..be5d7ef7c 100644 --- a/linux/drivers/media/dvb/frontends/zl10353.c +++ b/linux/drivers/media/dvb/frontends/zl10353.c @@ -598,8 +598,15 @@ 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; -- cgit v1.2.3