diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2008-01-19 23:41:04 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-26 00:05:09 +0300 |
| commit | ed73683f06475531fb39e7ae9afe3011e4c5f8c1 (patch) | |
| tree | 202af49a3ba7bb90942b05ba8c38d7d3c2d5f306 /drivers/media | |
| parent | 3473e342d79be938497a31caedd3c4e8d562485f (diff) | |
| download | linux-ed73683f06475531fb39e7ae9afe3011e4c5f8c1.tar.xz | |
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: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-fe.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c index dd3657e459b1..dfe72aaec380 100644 --- a/drivers/media/dvb/frontends/tda18271-fe.c +++ b/drivers/media/dvb/frontends/tda18271-fe.c @@ -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) |