upstream: [media] drx-j: Fix detection of no signal

When the signal is 7, it means that no signal was received.

Value experimentally measured.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c
index 9958277..8098d87 100644 (file)
--- a/drivers/media/dvb-frontends/drx39xyj/drxj.c
+++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c
@@ -9420,6 +9420,9 @@ static int get_sig_strength(struct drx_demod_instance *demod, u16 *sig_strength)
                *sig_strength = (20 * if_gain / if_agc_sns);
        }
 
+       if (*sig_strength <= 7)
+               *sig_strength = 0;
+
        return 0;
        rw_error:
        return -EIO;