From: Benjamin Larsson <benjamin@southpole.se>
Date: Sun, 15 Mar 2015 22:57:50 +0000 (-0300)
Subject: [media] mn88472: implement lock for all delivery systems
X-Git-Tag: firefly_0821_release~176^2~795^2~1134
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ba6d6d8a06c323782badf8cbead6e4ec1c742235;p=firefly-linux-kernel-4.4.55.git

[media] mn88472: implement lock for all delivery systems

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

Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/staging/media/mn88472/mn88472.c b/drivers/staging/media/mn88472/mn88472.c
index 219a7d1db8d4..6f0cac44d273 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;