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authorMauro Carvalho Chehab <m.chehab@samsung.com>2014-07-21 14:55:05 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-07-22 21:33:25 -0300
commit276dfc4b99a65c3b05e37a267e5e36e0e8381b7a (patch)
tree410869fe160ab68a1794abac806ecb1316e5119f /drivers/media/dvb-frontends
parent4423a2ba808d0df1b394b9313ea9a0bbad764e93 (diff)
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[media] mb86a20s: fix ISDB-T mode handling
The driver was reporting an incorrect mode, when mode 2 is selected. While testing it, noticed that neither mode 1 or guard interval 1/32 is supported by this device. Document it, and ensure that it will report _AUTO when it doesn't lock, in order to not report a wrong detection to userspace. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/mb86a20s.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c
index 2f458bb188c7..79bc1c9d0fa9 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -721,11 +721,10 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
rc = mb86a20s_readreg(state, 0x07);
if (rc < 0)
return rc;
+ c->transmission_mode = TRANSMISSION_MODE_AUTO;
if ((rc & 0x60) == 0x20) {
- switch (rc & 0x0c >> 2) {
- case 0:
- c->transmission_mode = TRANSMISSION_MODE_2K;
- break;
+ /* Only modes 2 and 3 are supported */
+ switch ((rc >> 2) & 0x03) {
case 1:
c->transmission_mode = TRANSMISSION_MODE_4K;
break;
@@ -734,7 +733,9 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
break;
}
}
+ c->guard_interval = GUARD_INTERVAL_AUTO;
if (!(rc & 0x10)) {
+ /* Guard interval 1/32 is not supported */
switch (rc & 0x3) {
case 0:
c->guard_interval = GUARD_INTERVAL_1_4;
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