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Commit ed73683f authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab
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V4L/DVB (7052): tda18271: when tuning digital, the analog demod must be tri-stated 



Call analog_ops.standby during tda18271_set_params, to put the tda8295
in tri-state when tuning digital channels.  Otherwise the tda8295 will
interfere with the signal coming from the tda18271 into the digital
demodulator.

Signed-off-by: default avatarMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 3473e342

drivers/media/dvb/frontends/tda18271-fe.c

+4 −1
Original line number Diff line number Diff line
@@ -836,7 +836,6 @@ static int tda18271_set_params(struct dvb_frontend *fe, 


	priv->mode = TDA18271_DIGITAL;



	/* see table 22 */

	if (fe->ops.info.type == FE_ATSC) {

		switch (params->u.vsb.modulation) {

		case VSB_8:
@@ -884,6 +883,10 @@ static int tda18271_set_params(struct dvb_frontend *fe, 
		return -EINVAL;

	}



	/* When tuning digital, the analog demod must be tri-stated */

	if (fe->ops.analog_ops.standby)

		fe->ops.analog_ops.standby(fe);



	ret = tda18271_tune(fe, sgIF * 1000, freq, bw, std, 0);



	if (ret < 0)