[media] cxd2820r: sleep on DVB-T/T2 delivery system switch

Fix bug introduced by multi-frontend to single-frontend change.
It is safer to put DVB-T parts sleeping when auto-switching to DVB-T2
and vice versa. That was original behaviour.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/media/dvb/frontends/cxd2820r_core.c b/drivers/media/dvb/frontends/cxd2820r_core.c
index bdfa207a883e..5c7c2aaf9bf5 100644
--- a/drivers/media/dvb/frontends/cxd2820r_core.c
+++ b/drivers/media/dvb/frontends/cxd2820r_core.c
@@ -482,10 +482,19 @@ static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe)
 
         /* switch between DVB-T and DVB-T2 when tune fails */
         if (priv->last_tune_failed) {
-                if (priv->delivery_system == SYS_DVBT)
+                if (priv->delivery_system == SYS_DVBT) {
+                        ret = cxd2820r_sleep_t(fe);
+                        if (ret)
+                                goto error;
+
                         c->delivery_system = SYS_DVBT2;
-                else if (priv->delivery_system == SYS_DVBT2)
+                } else if (priv->delivery_system == SYS_DVBT2) {
+                        ret = cxd2820r_sleep_t2(fe);
+                        if (ret)
+                                goto error;
+
                         c->delivery_system = SYS_DVBT;
+                }
         }
 
         /* set frontend */