diff options
| author | Manu Abraham <abraham.manu@gmail.com> | 2009-06-18 11:50:53 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-23 10:29:57 +0400 |
| commit | eebf8d86acf0db974dfaad8e8285f4e12ca488e2 (patch) | |
| tree | 90ce27459cef311f680b18f7d8237d375c115c9e /drivers/media/dvb | |
| parent | 0a5ded56fd3f4096681f8e6a249fb058485f4e46 (diff) | |
| download | linux-eebf8d86acf0db974dfaad8e8285f4e12ca488e2.tar.xz | |
V4L/DVB (12131): BUGFIX: An incorrect Carrier Recovery Loop optimization table was being
loaded for a given chip version. This would cause the optimization in
tuning not to be applied and thus a failed expectation, in tuning speed
increment. The patch swaps the tables in use. It also fixes a possible
one in a million condition where state->dev_ver implies an older Cut
(Cut < 2.0, eventhough the driver doesn't attach to any Cut older than
2.0) or even negative (due to a bad I2C bus master driver) for the card
combination.
Thanks to Mauro Carvalho Chehab <mchehab@infradead.org> for pointing
out the issue at large.
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/stv090x.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c index 4e89bb02bff3..488bdfb34fb3 100644 --- a/drivers/media/dvb/frontends/stv090x.c +++ b/drivers/media/dvb/frontends/stv090x.c @@ -2694,10 +2694,13 @@ static u8 stv090x_optimize_carloop_short(struct stv090x_state *state) break; } - if (state->dev_ver >= 0x30) - short_crl = stv090x_s2_short_crl_cut20; - else if (state->dev_ver >= 0x20) + if (state->dev_ver >= 0x30) { + /* Cut 3.0 and up */ short_crl = stv090x_s2_short_crl_cut30; + } else { + /* Cut 2.0 and up: we don't support cuts older than 2.0 */ + short_crl = stv090x_s2_short_crl_cut20; + } if (state->srate <= 3000000) aclc = short_crl[index].crl_2; |