From: Antti Palosaari <crope@iki.fi>
Date: Tue, 15 May 2012 22:48:40 +0000 (-0300)
Subject: [media] zl10353: change .read_snr() to report SNR as a 0.1 dB
X-Git-Tag: v3.5-rc1~104^2~17
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=13c6a9f706d21fa02495f31b3bbd3ae4d42d108f;p=karo-tx-linux.git

[media] zl10353: change .read_snr() to report SNR as a 0.1 dB

Report SNR in 0.1 dB scale instead of raw hardware register values.

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

diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
index 4de3691610bc..82946cd517f5 100644
--- a/drivers/media/dvb/frontends/zl10353.c
+++ b/drivers/media/dvb/frontends/zl10353.c
@@ -525,7 +525,7 @@ static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr)
 		zl10353_dump_regs(fe);
 
 	_snr = zl10353_read_register(state, SNR);
-	*snr = (_snr << 8) | _snr;
+	*snr = 10 * _snr / 8;
 
 	return 0;
 }