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[media] bttv: there may be multiple tvaudio/tda7432 devices

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Probe for additional tvaudio devices, and allow tvaudio+tda7432 to
co-exist. My STB TV PCI FM bttv card has a tda7432, a tda9850 and a
tea6420 and with this patch it finally works again (probably for the
first time in many years).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-02-06 12:43:37 -03:00 committed by Mauro Carvalho Chehab
parent 6795cc5550
commit fafdc26b85
1 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/media/pci/bt8xx/bttv-cards.c
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@ -3547,6 +3547,16 @@ void bttv_init_card2(struct bttv *btv)
if (btv->sd_msp34xx)
return;
/* Now see if we can find one of the tvaudio devices. */
btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
&btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
if (btv->sd_tvaudio) {
/* There may be two tvaudio chips on the card, so try to
find another. */
v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
&btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
}
/* it might also be a tda7432. */
if (!bttv_tvcards[btv->c.type].no_tda7432) {
static const unsigned short addrs[] = {
@ -3559,10 +3569,6 @@ void bttv_init_card2(struct bttv *btv)
if (btv->sd_tda7432)
return;
}
/* Now see if we can find one of the tvaudio devices. */
btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
&btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
if (btv->sd_tvaudio)
return;