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| author | Christophe Thommeret <hftom@free.fr> | 2008-10-15 20:01:32 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-17 17:29:46 -0300 |
| commit | 745632147d54cd4db6812045351510ebd3981a24 (patch) | |
| tree | cc1e0d8dada7b2ce4bad2851c3ffea320bd61322 /drivers/serial/bfin_5xx.c | |
| parent | 430189da042f8cc3305b8fbbce18ea103501fb90 (diff) | |
| download | blackbird-op-linux-745632147d54cd4db6812045351510ebd3981a24.tar.gz blackbird-op-linux-745632147d54cd4db6812045351510ebd3981a24.zip | |
V4L/DVB (9270): cx24116: optimise emulated auto-pilot
Christophe divulged the following:
"Since 8PSK (and higher mod) signals are very likely to have pilot symbols,
pilot_auto should start with pilot_on for 8PSK.
And since QPSK signals are unlikely to have pilot, pilot_auto should start
with pilot_off for QPSK.
Without the patch:
QPSK tuning delay: ~100ms
8PSK tuning delay: ~900ms
with patch:
QPSK tuning delay: ~100ms
8PSK tuning delay: ~100ms
"
This patch does as Cristophe asks. In emulated auto-pilot we
choose pilot-on for tuning PSK_8 and pilot-off for
tuning QPSK.
Signed-off-by: Darron Broad <darron@kewl.org>
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/serial/bfin_5xx.c')
0 files changed, 0 insertions, 0 deletions
