diff options
| author | Steven Toth <stoth@linuxtv.org> | 2008-10-20 09:17:08 -0400 |
|---|---|---|
| committer | Steven Toth <stoth@linuxtv.org> | 2008-10-20 09:17:08 -0400 |
| commit | 702a75991fe92586daefdfd2517ed990bb2a6f76 (patch) | |
| tree | 72a239fd95ee6e363c1828c841c4b876119c5fe7 /linux/drivers/media/dvb | |
| parent | 37c0bbb8b66b77c28483ce7de81c8ec00d37277f (diff) | |
| download | mediapointer-dvb-s2-702a75991fe92586daefdfd2517ed990bb2a6f76.tar.gz mediapointer-dvb-s2-702a75991fe92586daefdfd2517ed990bb2a6f76.tar.bz2 | |
s5h1411: Perform s5h1411 soft reset after tuning
From: Devin Heitmueller <devin.heitmueller@gmail.com>
If you instruct the tuner to change frequencies, it can take up to 2500ms to
get a demod lock. By performing a soft reset after the tuning call (which
is consistent with how the Pinnacle 801e Windows driver behaves), you get
a demod lock inside of 300ms
Priority: normal
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Steven Toth <stoth@linuxtv.org>
Diffstat (limited to 'linux/drivers/media/dvb')
| -rw-r--r-- | linux/drivers/media/dvb/frontends/s5h1411.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/linux/drivers/media/dvb/frontends/s5h1411.c b/linux/drivers/media/dvb/frontends/s5h1411.c index e328d88bc..40e0fedf3 100644 --- a/linux/drivers/media/dvb/frontends/s5h1411.c +++ b/linux/drivers/media/dvb/frontends/s5h1411.c @@ -585,9 +585,6 @@ static int s5h1411_set_frontend(struct dvb_frontend *fe, s5h1411_enable_modulation(fe, p->u.vsb.modulation); - /* Allow the demod to settle */ - msleep(100); - if (fe->ops.tuner_ops.set_params) { if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); @@ -598,6 +595,10 @@ static int s5h1411_set_frontend(struct dvb_frontend *fe, fe->ops.i2c_gate_ctrl(fe, 0); } + /* Issue a reset to the demod so it knows to resync against the + newly tuned frequency */ + s5h1411_softreset(fe); + return 0; } |