[media] cxd2820r: improve lock detection
Check demod and ts locks and report lock status according to those.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/dvb-frontends/cxd2820r_t.c b/drivers/media/dvb-frontends/cxd2820r_t.c
index 174d916..19f72cd 100644
--- a/drivers/media/dvb-frontends/cxd2820r_t.c
+++ b/drivers/media/dvb-frontends/cxd2820r_t.c
@@ -265,42 +265,32 @@
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
- unsigned int utmp;
- u8 buf[4];
- *status = 0;
+ unsigned int utmp, utmp1, utmp2;
+ u8 buf[3];
+ /* Lock detection */
ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]);
if (ret)
goto error;
+ ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]);
+ if (ret)
+ goto error;
- if ((buf[0] & 0x07) == 6) {
- ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]);
- if (ret)
- goto error;
+ utmp1 = (buf[0] >> 0) & 0x07;
+ utmp2 = (buf[1] >> 3) & 0x01;
- if (((buf[1] >> 3) & 0x01) == 1) {
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
- FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
- } else {
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
- FE_HAS_VITERBI | FE_HAS_SYNC;
- }
+ if (utmp1 == 6 && utmp2 == 1) {
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+ FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ } else if (utmp1 == 6 || utmp2 == 1) {
+ *status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+ FE_HAS_VITERBI | FE_HAS_SYNC;
} else {
- ret = cxd2820r_rd_reg(priv, 0x00014, &buf[2]);
- if (ret)
- goto error;
-
- if ((buf[2] & 0x0f) >= 4) {
- ret = cxd2820r_rd_reg(priv, 0x00a14, &buf[3]);
- if (ret)
- goto error;
-
- if (((buf[3] >> 4) & 0x01) == 1)
- *status |= FE_HAS_SIGNAL;
- }
+ *status = 0;
}
- dev_dbg(&client->dev, "lock=%*ph\n", 4, buf);
+ dev_dbg(&client->dev, "status=%02x raw=%*ph sync=%u ts=%u\n",
+ *status, 2, buf, utmp1, utmp2);
/* Signal strength */
if (*status & FE_HAS_SIGNAL) {