commit 1435c1efafe8a20abcf4a515b69de15cd1a11ae2
author Ke Dong <kedong@google.com> Fri Mar 13 01:05:17 2015 -0700
committer Ke Dong <kedong@google.com> Fri Mar 13 14:46:05 2015 -0700
tree 92c0907ef7f921095e4346f6300c4083f037784e
parent 08f5f86f316eb6189938679df9ddec5e855e917c

Correct the wrong SNR calculation for DVB-S2.

Test:

SPACECAST2# dvbsnoop -s signal
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/

---------------------------------------------------------
Transponder/Frequency signal strength statistics...
---------------------------------------------------------
cycle: 1  d_time: 0.001 s  Sig: 31  SNR: 19  BER: 4009  UBLK: 0  Stat:
0x1f [SIG CARR VIT SYNC LOCK ]

Google-Bug-Id: 19432272
Change-Id: I38b0d0b065a2f1a48fdd59a7c00fc13e71e88012

drivers/media/dvb/frontends/dvbsky_m88rs6000.c

diff --git a/drivers/media/dvb/frontends/dvbsky_m88rs6000.c b/drivers/media/dvb/frontends/dvbsky_m88rs6000.c
index d3fbdcc..73f64fd 100644
--- a/drivers/media/dvb/frontends/dvbsky_m88rs6000.c
+++ b/drivers/media/dvb/frontends/dvbsky_m88rs6000.c
@@ -543,7 +543,7 @@
 			if(spow > npow){
 				tmp = (u16)(spow / npow);
 				if (tmp > 80) tmp = 80;
-				snr = mes_log10[tmp - 1]*3;
+				snr = mes_log10[tmp - 1] / 1000;
 			}else{
 				tmp = (u16)(npow / spow);
 				if (tmp > 80) tmp = 80;