diff options
| author | Michael Krufky <mkrufky@linuxtv.org> | 2007-12-01 20:40:16 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-25 21:03:12 (GMT) |
| commit | efce841093589bfef571a07e18e5446def9e04b4 (patch) | |
| tree | ab2627d9dc1058b8a2834cc0203d7ee8e3c18983 /drivers | |
| parent | 2b057e8dc6cc8318956fef92b77a4e86985e84d9 (diff) | |
| download | linux-fsl-qoriq-efce841093589bfef571a07e18e5446def9e04b4.tar.xz | |
V4L/DVB (6723): tda18271: only force init once during attach
Once the image rejection calibration procedure has been successful,
we should not initialize the tuner registers again.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/dvb/frontends/tda18271-fe.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/media/dvb/frontends/tda18271-fe.c b/drivers/media/dvb/frontends/tda18271-fe.c index 726e102..25c127f 100644 --- a/drivers/media/dvb/frontends/tda18271-fe.c +++ b/drivers/media/dvb/frontends/tda18271-fe.c @@ -337,6 +337,20 @@ static int tda18271_init_regs(struct dvb_frontend *fe) return 0; } +static int tda18271_init(struct dvb_frontend *fe) +{ + struct tda18271_priv *priv = fe->tuner_priv; + unsigned char *regs = priv->tda18271_regs; + + tda18271_read_regs(fe); + + /* test IR_CAL_OK to see if we need init */ + if ((regs[R_EP1] & 0x08) == 0) + tda18271_init_regs(fe); + + return 0; +} + static int tda18271_tune(struct dvb_frontend *fe, u32 ifc, u32 freq, u32 bw, u8 std) { @@ -742,7 +756,7 @@ static struct dvb_tuner_ops tda18271_tuner_ops = { .frequency_max = 864000000, .frequency_step = 62500 }, - .init = tda18271_init_regs, + .init = tda18271_init, .set_params = tda18271_set_params, .set_analog_params = tda18271_set_analog_params, .release = tda18271_release, @@ -768,6 +782,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, fe->tuner_priv = priv; + tda18271_init_regs(fe); + return fe; } EXPORT_SYMBOL_GPL(tda18271_attach); |