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Subject: [media] mn88472: implement lock for all delivery systems
Author:  Benjamin Larsson <[email protected]>
Date:    Sun Mar 15 19:57:50 2015 -0300

The increase of the lock timeout is needed for dvb-t2.

Signed-off-by: Benjamin Larsson <[email protected]>
Signed-off-by: Antti Palosaari <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

 drivers/staging/media/mn88472/mn88472.c |   24 ++++++++++++++++++++----
 1 files changed, 20 insertions(+), 4 deletions(-)

---

http://git.linuxtv.org/cgit.cgi/media_tree.git/commit/?id=ba6d6d8a06c323782badf8cbead6e4ec1c742235

diff --git a/drivers/staging/media/mn88472/mn88472.c 
b/drivers/staging/media/mn88472/mn88472.c
index 219a7d1..6f0cac4 100644
--- a/drivers/staging/media/mn88472/mn88472.c
+++ b/drivers/staging/media/mn88472/mn88472.c
@@ -19,7 +19,7 @@
 static int mn88472_get_tune_settings(struct dvb_frontend *fe,
        struct dvb_frontend_tune_settings *s)
 {
-       s->min_delay_ms = 400;
+       s->min_delay_ms = 800;
        return 0;
 }
 
@@ -201,6 +201,7 @@ static int mn88472_read_status(struct dvb_frontend *fe, 
fe_status_t *status)
        struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        int ret;
        unsigned int utmp;
+       int lock = 0;
 
        *status = 0;
 
@@ -211,21 +212,36 @@ static int mn88472_read_status(struct dvb_frontend *fe, 
fe_status_t *status)
 
        switch (c->delivery_system) {
        case SYS_DVBT:
+               ret = regmap_read(dev->regmap[0], 0x7F, &utmp);
+               if (ret)
+                       goto err;
+               if ((utmp & 0xF) >= 0x09)
+                       lock = 1;
+               break;
        case SYS_DVBT2:
-               /* FIXME: implement me */
-               utmp = 0x08; /* DVB-C lock value */
+               ret = regmap_read(dev->regmap[2], 0x92, &utmp);
+               if (ret)
+                       goto err;
+               if ((utmp & 0xF) >= 0x07)
+                       *status |= FE_HAS_SIGNAL;
+               if ((utmp & 0xF) >= 0x0a)
+                       *status |= FE_HAS_CARRIER;
+               if ((utmp & 0xF) >= 0x0d)
+                       *status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
                break;
        case SYS_DVBC_ANNEX_A:
                ret = regmap_read(dev->regmap[1], 0x84, &utmp);
                if (ret)
                        goto err;
+               if ((utmp & 0xF) >= 0x08)
+                       lock = 1;
                break;
        default:
                ret = -EINVAL;
                goto err;
        }
 
-       if (utmp == 0x08)
+       if (lock)
                *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
                                FE_HAS_SYNC | FE_HAS_LOCK;
 

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