V4L/DVB (10562): bttv: rework the way digital inputs are indicated

The code was using a muxsel value of -1U to indicate a digital input.  A
couple places in were checking of muxsel < 0 to detect this, which doesn't
work of course because muxsel is unsigned and can't be negative.

Only a couple cards had digital inputs and it was always the last one, so
for the card database create a one bit field that indicates the last input
is digital.  On init, this is used to set a new field in the bttv struct to
the digital input's number or UNSET for none.  This makes it easier to
check if the current input is digital.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index 230e148..23ab1c9 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -329,7 +329,7 @@ struct bttv {
 	unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
 	unsigned int tuner_type;  /* tuner chip type */
 	unsigned int tda9887_conf;
-	unsigned int svhs;
+	unsigned int svhs, dig;
 	struct bttv_pll_info pll;
 	int triton1;
 	int gpioirq;