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authorHans Verkuil <hans.verkuil@cisco.com>2013-02-06 12:43:37 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-05 14:23:37 -0300
commitfafdc26b8558838988f406abef27d6dcc5b3dd76 (patch)
treeff060dddb23c25701f1bcf7fa644b3b3205c7771 /drivers/media/pci/bt8xx/bttv-cards.c
parent6795cc55506606988175c16aa0e17d9f349706ca (diff)
[media] bttv: there may be multiple tvaudio/tda7432 devices
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>
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-cards.c')
-rw-r--r--drivers/media/pci/bt8xx/bttv-cards.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-cards.c b/drivers/media/pci/bt8xx/bttv-cards.c
index 682ed893d718..fa0faaa2a49a 100644
--- a/drivers/media/pci/bt8xx/bttv-cards.c
+++ b/drivers/media/pci/bt8xx/bttv-cards.c
@@ -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;