[PATCH 3.11 067/137] [media] tda10071: force modulation to QPSK on DVB-S
From: Luis Henriques <hidden>
Date: 2014-08-18 09:35:12
Also in:
lkml
Subsystem:
media input infrastructure (v4l/dvb), tda10071 media driver, the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
3.11.10.15 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Antti Palosaari <redacted> 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 <redacted> Signed-off-by: Mauro Carvalho Chehab <redacted> Signed-off-by: Luis Henriques <redacted> --- drivers/media/dvb-frontends/tda10071.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
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",
--
1.9.1