diff options
| author | Devin Heitmueller <devin.heitmueller@gmail.com> | 2008-11-02 23:04:47 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-11-06 19:05:49 -0800 |
| commit | 3fc8395149818a686df0ec8c4da5397a645ffe8a (patch) | |
| tree | 8f7bccb1a25492d234d8377b8c756863fa52e90a /drivers/media/dvb | |
| parent | 3d6b04d6871d38b6791a949d81b42aea0d7a389b (diff) | |
DVB: s5h1411: Perform s5h1411 soft reset after tuning
cherry picked from commit f0d041e50bc6c8a677922d72b010f80af9b23b18
DVB: s5h1411: Perform s5h1411 soft reset after tuning
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
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/s5h1411.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/s5h1411.c b/drivers/media/dvb/frontends/s5h1411.c index a710ea387ab..5b68c481f83 100644 --- a/drivers/media/dvb/frontends/s5h1411.c +++ b/drivers/media/dvb/frontends/s5h1411.c @@ -588,9 +588,6 @@ 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); @@ -601,6 +598,10 @@ 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; } |