From: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Date: Mon, 19 Nov 2007 09:35:26 +0000 (-0300)
Subject: V4L/DVB (6641): xc2028: correct tuner offset for 7MHz DTV
X-Git-Tag: v2.6.25-rc1~1235^2~332
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a44f1c43dfa98e2eb763968890157bfaf9001add;p=linux-2.6

V4L/DVB (6641): xc2028: correct tuner offset for 7MHz DTV

7MHz bandwidth DVB-T needs an adjusted offset at the PLL to ensure the IF
output is correctly centered.

Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---

diff --git a/drivers/media/video/tuner-xc2028.c b/drivers/media/video/tuner-xc2028.c
index adef80e627..c921d6009a 100644
--- a/drivers/media/video/tuner-xc2028.c
+++ b/drivers/media/video/tuner-xc2028.c
@@ -764,8 +764,11 @@ static int generic_set_tv_freq(struct dvb_frontend *fe, u32 freq /* in Hz */ ,
 	if (check_firmware(fe, new_mode, std, bandwidth) < 0)
 		goto ret;
 
-	if (new_mode == T_DIGITAL_TV)
+	if (new_mode == T_DIGITAL_TV) {
 		offset = 2750000;
+		if (priv->bandwidth == BANDWIDTH_7_MHZ)
+			offset -= 500000;
+	}
 
 	div = (freq - offset + DIV / 2) / DIV;