On Thu, Jan 4, 2018 at 8:30 PM, Brad Love <brad@xxxxxxxxxxxxxxxx> wrote: > Add some register updates required for stable viewing > on Cablevision in NY. Does not adversely affect other providers. > > Changes since v1: > - Change upper case hex to lower case. > > Signed-off-by: Brad Love <brad@xxxxxxxxxxxxxxxx> Looks good - Thanks. Reviewed-by: Michael Ira Krufky <mkrufky@xxxxxxxxxxx> > --- > 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 >
