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authorDevin Heitmueller <dheitmueller@linuxtv.org>2009-01-26 01:07:59 -0500
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-02-01 07:41:02 -0500
commit67e70baf043cfdcdaf5972bc94be82632071536b (patch)
treed8b1a353d62590eb8670fb99303432aae07211c0
parent40c41c8cf1d04445013a14772afb3903a17344a6 (diff)
V4L/DVB (10411): s5h1409: Perform s5h1409 soft reset after tuning
Just like with the s5h1411, the s5h1409 needs a soft-reset in order for it to know that the tuner has been told to change frequencies. This change changes the behavior from "random tuning times between 500ms to complete tuning lock failures" to "tuning lock consistently within 700ms". Thanks to Robert Krakora <rob.krakora@messagenetsystems.com> for doing initial testing of the patch on the KWorld 330U. Thanks to Andy Walls <awalls@radix.net> for doing testing of the patch on the HVR-1600. Thanks to Michael Krufky <mkrufky@linuxtv.org> for doing additional testing. Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/dvb/frontends/s5h1409.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c
index cf4d8936bb83..3e08d985d6e5 100644
--- a/drivers/media/dvb/frontends/s5h1409.c
+++ b/drivers/media/dvb/frontends/s5h1409.c
@@ -545,9 +545,6 @@ static int s5h1409_set_frontend(struct dvb_frontend *fe,
545 545
546 s5h1409_enable_modulation(fe, p->u.vsb.modulation); 546 s5h1409_enable_modulation(fe, p->u.vsb.modulation);
547 547
548 /* Allow the demod to settle */
549 msleep(100);
550
551 if (fe->ops.tuner_ops.set_params) { 548 if (fe->ops.tuner_ops.set_params) {
552 if (fe->ops.i2c_gate_ctrl) 549 if (fe->ops.i2c_gate_ctrl)
553 fe->ops.i2c_gate_ctrl(fe, 1); 550 fe->ops.i2c_gate_ctrl(fe, 1);
@@ -562,6 +559,10 @@ static int s5h1409_set_frontend(struct dvb_frontend *fe,
562 s5h1409_set_qam_interleave_mode(fe); 559 s5h1409_set_qam_interleave_mode(fe);
563 } 560 }
564 561
562 /* Issue a reset to the demod so it knows to resync against the
563 newly tuned frequency */
564 s5h1409_softreset(fe);
565
565 return 0; 566 return 0;
566} 567}
567 568