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V4L/DVB (11059): xc5000: fix bug for hybrid xc5000 devices with IF other than 5380 

The xc5000 driver has a bug where the IF is always set to whatever the first
caller to dvb_attach() provides.  This fails when the device requires an IF
other than 5380 and the analog driver is loaded first through tuner-core
(which always supplies the hard-coded value of 5380).

Thanks to Michael Krufky <mkrufky@linuxtv.org> and Steven Toth
<stoth@linuxtv.org> for providing sample hardware, engineering level support,
and 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>
This commit is contained in:
Devin Heitmueller 2009-03-11 02:58:53 -03:00 committed by Mauro Carvalho Chehab
parent e9d4a6d5ef
commit ea2278633a
2 changed files with 9 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/media/common/tuners/xc5000.c
View File

@ -973,8 +973,6 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
case 1:
/* new tuner instance */
priv->bandwidth = BANDWIDTH_6_MHZ;
priv->if_khz = cfg->if_khz;
fe->tuner_priv = priv;
break;
default:
@ -983,6 +981,13 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
break;
}
if (priv->if_khz == 0) {
/* If the IF hasn't been set yet, use the value provided by
the caller (occurs in hybrid devices where the analog
call to xc5000_attach occurs before the digital side) */
priv->if_khz = cfg->if_khz;
}
/* Check if firmware has been loaded. It is possible that another
instance of the driver has loaded the firmware.
*/

3
drivers/media/video/tuner-core.c
View File

@ -452,7 +452,8 @@ static void set_type(struct i2c_client *c, unsigned int type,
struct dvb_tuner_ops *xc_tuner_ops;
xc5000_cfg.i2c_address = t->i2c->addr;
xc5000_cfg.if_khz = 5380;
/* if_khz will be set when the digital dvb_attach() occurs */
xc5000_cfg.if_khz = 0;
if (!dvb_attach(xc5000_attach,
&t->fe, t->i2c->adapter, &xc5000_cfg))
goto attach_failed;