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media: tda10071: force modulation to QPSK on DVB-S 

commit db4175ae20 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>
This commit is contained in:
Antti Palosaari 2014-07-04 05:44:39 -03:00 committed by Greg Kroah-Hartman
parent 282cb9a232
commit 2bd7b4309a
1 changed files with 5 additions and 1 deletions
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6
drivers/media/dvb-frontends/tda10071.c
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@ -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",