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| author | Antti Palosaari <crope@iki.fi> | 2014-07-04 05:44:39 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-31 12:53:48 -0700 |
| commit | 18bfdaeaa42e36d49bf82443e890db9448d4bebf (patch) | |
| tree | ce98847e9bee9c94c1fd4c0e772f083374b5f6b6 /drivers/media | |
| parent | 926a693a348963a08b5710552e4e7209d2dc126c (diff) | |
| download | lwn-18bfdaeaa42e36d49bf82443e890db9448d4bebf.tar.gz lwn-18bfdaeaa42e36d49bf82443e890db9448d4bebf.zip | |
media: tda10071: force modulation to QPSK on DVB-S
commit db4175ae2095634dbecd4c847da439f9c83e1b3b upstream.
Only supported modulation for DVB-S is QPSK. Modulation parameter
contains invalid value for DVB-S on some cases, which leads driver
refusing tuning attempt. Due to that, hard code modulation to QPSK
in case of DVB-S.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb-frontends/tda10071.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c index 36eb27d3fdf1..def7812d7b22 100644 --- a/drivers/media/dvb-frontends/tda10071.c +++ b/drivers/media/dvb-frontends/tda10071.c @@ -667,6 +667,7 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) struct dtv_frontend_properties *c = &fe->dtv_property_cache; int ret, i; u8 mode, rolloff, pilot, inversion, div; + fe_modulation_t modulation; dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d modulation=%d " \ "frequency=%d symbol_rate=%d inversion=%d pilot=%d " \ @@ -701,10 +702,13 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) switch (c->delivery_system) { case SYS_DVBS: + modulation = QPSK; rolloff = 0; pilot = 2; break; case SYS_DVBS2: + modulation = c->modulation; + switch (c->rolloff) { case ROLLOFF_20: rolloff = 2; @@ -749,7 +753,7 @@ static int tda10071_set_frontend(struct dvb_frontend *fe) for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) { if (c->delivery_system == TDA10071_MODCOD[i].delivery_system && - c->modulation == TDA10071_MODCOD[i].modulation && + modulation == TDA10071_MODCOD[i].modulation && c->fec_inner == TDA10071_MODCOD[i].fec) { mode = TDA10071_MODCOD[i].val; dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n", |