[media] af9033: fix DVBv3 signal strength value not correct issue

Register 0x800048 is not dB measure but relative scale. Fix it and conform to NorDig specifications.

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

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/media/dvb-frontends/af9033_priv.h b/drivers/media/dvb-frontends/af9033_priv.h
index c12c92cb5855..c9c87981f80b 100644
--- a/drivers/media/dvb-frontends/af9033_priv.h
+++ b/drivers/media/dvb-frontends/af9033_priv.h
@@ -2051,4 +2051,10 @@ static const struct reg_val tuner_init_it9135_62[] = {
         { 0x80fd8b, 0x00 },
 };
 
+/* NorDig power reference table */
+static const int power_reference[][5] = {
+        {-93, -91, -90, -89, -88}, /* QPSK 1/2 ~ 7/8 */
+        {-87, -85, -84, -83, -82}, /* 16QAM 1/2 ~ 7/8 */
+        {-82, -80, -78, -77, -76}, /* 64QAM 1/2 ~ 7/8 */
+};
 #endif /* AF9033_PRIV_H */