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From: Lutz Sammer <johns98@gmx.net>
To: linux-media@vger.kernel.org
Subject: [PATCH] stb0899: Fix slow and not locking DVB-S transponder(s)
Date: Thu, 29 Sep 2011 23:16:00 +0200	[thread overview]
Message-ID: <4E84E010.5020602@gmx.net> (raw)

Another version of
http://patchwork.linuxtv.org/patch/6307
http://patchwork.linuxtv.org/patch/6510
which was superseded or rejected, but it don't know why.

In stb0899_status stb0899_check_data the first read of STB0899_VSTATUS
could read old (from previous search) status bits and the search fails
on a good frequency.

With the patch more transponder could be locked and locks about 2* faster.

Signed-off-by: Lutz Sammer <johns98@gmx.net>
---
 drivers/media/dvb/frontends/stb0899_algo.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/media/dvb/frontends/stb0899_algo.c b/drivers/media/dvb/fron  tends/stb0899_algo.c
index d70eee0..8eca419 100644
--- a/drivers/media/dvb/frontends/stb0899_algo.c
+++ b/drivers/media/dvb/frontends/stb0899_algo.c
@@ -358,6 +358,7 @@ static enum stb0899_status stb0899_check_data(struct stb0899  _state *state)
        else
                dataTime = 500;
 
+       stb0899_read_reg(state, STB0899_VSTATUS); /* clear old status bits */
        stb0899_write_reg(state, STB0899_DSTATUS2, 0x00); /* force search loop *  /
        while (1) {
                /* WARNING! VIT LOCKED has to be tested before VIT_END_LOOOP   *  /
-- 
1.7.6.1

             reply	other threads:[~2011-09-29 21:15 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-29 21:16 Lutz Sammer [this message]
2011-09-29 21:22 ` [PATCH v2] stb0899: Fix slow and not locking DVB-S transponder(s) Lutz Sammer
2011-09-30 17:07   ` Mauro Carvalho Chehab
2011-09-30 18:41     ` Lutz Sammer
2011-09-30 18:58       ` Mauro Carvalho Chehab
2011-10-06 18:56         ` Manu Abraham
2011-10-07 17:01           ` Lutz Sammer
2011-10-07 18:20             ` Manu Abraham
2011-10-07 20:11               ` [PATCH v3] " Lutz Sammer

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