V4L/DVB (7531): budget-av: Fix CI interface on (some) KNC1 DVBS cards

Quoting the commit introducing reinitialise_demod (3984 / by adq):
"These cards [KNC1 DVBT and DVBC] need special handling for CI - reinitialising the frontend
device when the CI module is reset."
Apparently my 1894:0010 also needs that fix, because once you initialise CI/CAM you lose lock.

Signed-off-by: Christoph Pfister <pfister@linuxtv.org>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/media/dvb/ttpci/budget-av.c b/drivers/media/dvb/ttpci/budget-av.c
index f0689e064f06..ed7fb1df554d 100644
--- a/drivers/media/dvb/ttpci/budget-av.c
+++ b/drivers/media/dvb/ttpci/budget-av.c
@@ -941,6 +941,12 @@ static void frontend_init(struct budget_av *budget_av)
         switch (saa->pci->subsystem_device) {
 
         case SUBID_DVBS_KNC1:
+                /*
+                 * maybe that setting is needed for other dvb-s cards as well,
+                 * but so far it has been only confirmed for this type
+                 */
+                budget_av->reinitialise_demod = 1;
+                /* fall through */
         case SUBID_DVBS_KNC1_PLUS:
         case SUBID_DVBS_EASYWATCH_1:
                 if (saa->pci->subsystem_vendor == 0x1894) {