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-rw-r--r--drivers/media/dvb/frontends/tda10021.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c
index 5ee729846a9f..45137d2ebfb9 100644
--- a/drivers/media/dvb/frontends/tda10021.c
+++ b/drivers/media/dvb/frontends/tda10021.c
@@ -312,7 +312,11 @@ static int tda10021_read_signal_strength(struct dvb_frontend* fe, u16* strength)
{
struct tda10021_state* state = fe->demodulator_priv;
+ u8 config = tda10021_readreg(state, 0x02);
u8 gain = tda10021_readreg(state, 0x17);
+ if (config & 0x02)
+ /* the agc value is inverted */
+ gain = ~gain;
*strength = (gain << 8) | gain;
return 0;
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