[media] rtl2830: wrap DVBv5 signal strength to DVBv3

Change legacy DVBv3 signal strength to return values calculated by
DVBv5 statistics.

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

diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c
index 147b3a6..a02ccdf 100644 (file)
--- a/drivers/media/dvb-frontends/rtl2830.c
+++ b/drivers/media/dvb-frontends/rtl2830.c
@@ -623,33 +623,14 @@ static int rtl2830_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 
 static int rtl2830_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 {
-       struct i2c_client *client = fe->demodulator_priv;
-       struct rtl2830_dev *dev = i2c_get_clientdata(client);
-       int ret;
-       u8 buf[2];
-       u16 if_agc_raw, if_agc;
-
-       if (dev->sleeping)
-               return 0;
-
-       ret = rtl2830_rd_regs(client, 0x359, buf, 2);
-       if (ret)
-               goto err;
-
-       if_agc_raw = (buf[0] << 8 | buf[1]) & 0x3fff;
+       struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 
-       if (if_agc_raw & (1 << 9))
-               if_agc = -(~(if_agc_raw - 1) & 0x1ff);
+       if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
+               *strength = c->strength.stat[0].uvalue;
        else
-               if_agc = if_agc_raw;
-
-       *strength = (u8)(55 - if_agc / 182);
-       *strength |= *strength << 8;
+               *strength = 0;
 
        return 0;
-err:
-       dev_dbg(&client->dev, "failed=%d\n", ret);
-       return ret;
 }
 
 static struct dvb_frontend_ops rtl2830_ops = {