Add some register updates required for stable viewing on Cablevision in NY. Does not adversely affect other providers. Signed-off-by: Brad Love <brad@xxxxxxxxxxxxxxxx> --- drivers/media/dvb-frontends/lgdt3306a.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/media/dvb-frontends/lgdt3306a.c b/drivers/media/dvb-frontends/lgdt3306a.c index d2477ed..2f540f1 100644 --- a/drivers/media/dvb-frontends/lgdt3306a.c +++ b/drivers/media/dvb-frontends/lgdt3306a.c @@ -598,6 +598,28 @@ static int lgdt3306a_set_qam(struct lgdt3306a_state *state, int modulation) if (lg_chkerr(ret)) goto fail; + /* 5.1 V0.36 SRDCHKALWAYS : For better QAM detection */ + ret = lgdt3306a_read_reg(state, 0x000A, &val); + val &= 0xFD; + val |= 0x02; + ret = lgdt3306a_write_reg(state, 0x000A, val); + if (lg_chkerr(ret)) + goto fail; + + /* 5.2 V0.36 Control of "no signal" detector function */ + ret = lgdt3306a_read_reg(state, 0x2849, &val); + val &= 0xDF; + ret = lgdt3306a_write_reg(state, 0x2849, val); + if (lg_chkerr(ret)) + goto fail; + + /* 5.3 Fix for Blonder Tongue HDE-2H-QAM and AQM modulators */ + ret = lgdt3306a_read_reg(state, 0x302B, &val); + val &= 0x7F; /* SELFSYNCFINDEN_CQS=0; disable auto reset */ + ret = lgdt3306a_write_reg(state, 0x302B, val); + if (lg_chkerr(ret)) + goto fail; + /* 6. Reset */ ret = lgdt3306a_soft_reset(state); if (lg_chkerr(ret)) -- 2.7.4
