Commit 899a6f67 authored Dec 23, 2008 by Dmitri Belimov Committed by Mauro Carvalho Chehab Jan 02, 2009

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



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>

parent 91f7c130

drivers/media/dvb/frontends/zl10353.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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;

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