tree 9d369ee3d09001d11c497c2184337fb7a6ea239f
parent c589ebfce79834a9617c44d7ec0f608fa70eb42d
author Patrick Boettcher <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:02:38 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:57:39 -0700
[PATCH] dvb: frontend: stv0297: QAM128 tuning improvement
while investigating the QAM_128-issue with the stv0297-driver for the
Cablestar (which is not the same as the one in dvb-kernel CVS, yet), I fixed
it, not by increasing the timeout, but by disabling the corner-detection for
QAM_128 and higher.
This patch has been tested on dvb-kernel cvs, and has been reported to work by
multiple users. Some cards still need timeout increase on top of this patch.
This will be addressed later.
Signed-off-by: Patrick Boettcher <[EMAIL PROTECTED]>
Signed-off-by: Michael Krufky <[EMAIL PROTECTED]>
Signed-off-by: Johannes Stezenbach <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
drivers/media/dvb/frontends/stv0297.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/media/dvb/frontends/stv0297.c
b/drivers/media/dvb/frontends/stv0297.c
--- a/drivers/media/dvb/frontends/stv0297.c
+++ b/drivers/media/dvb/frontends/stv0297.c
@@ -606,7 +606,13 @@ static int stv0297_set_frontend(struct d
stv0297_set_inversion(state, inversion);
/* kick off lock */
- stv0297_writereg_mask(state, 0x88, 0x08, 0x08);
+ /* Disable corner detection for higher QAMs */
+ if (p->u.qam.modulation == QAM_128 ||
+ p->u.qam.modulation == QAM_256)
+ stv0297_writereg_mask(state, 0x88, 0x08, 0x00);
+ else
+ stv0297_writereg_mask(state, 0x88, 0x08, 0x08);
+
stv0297_writereg_mask(state, 0x5a, 0x20, 0x00);
stv0297_writereg_mask(state, 0x6a, 0x01, 0x01);
stv0297_writereg_mask(state, 0x43, 0x40, 0x40);
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
