Hi Michael,
Em Mon, 25 Jul 2016 14:55:51 -0400
Michael Ira Krufky <mkru...@linuxtv.org> escreveu:
> On Mon, Jul 25, 2016 at 2:38 PM, Abylay Ospan <aos...@netup.ru> wrote:
> > inside lgdt3306a_search we reading demod status 20 times with 50 msec sleep
> > after each read.
> > This gives us more than 1 sec of delay. Removing this delay should not
> > affect demod functionality.
> >
> > Signed-off-by: Abylay Ospan <aos...@netup.ru>
> > ---
> > drivers/media/dvb-frontends/lgdt3306a.c | 16 ++++------------
> > 1 file changed, 4 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/media/dvb-frontends/lgdt3306a.c
> > b/drivers/media/dvb-frontends/lgdt3306a.c
> > index 179c26e..dad7ad3 100644
> > --- a/drivers/media/dvb-frontends/lgdt3306a.c
> > +++ b/drivers/media/dvb-frontends/lgdt3306a.c
> > @@ -1737,24 +1737,16 @@ static int lgdt3306a_get_tune_settings(struct
> > dvb_frontend *fe,
> > static int lgdt3306a_search(struct dvb_frontend *fe)
> > {
> > enum fe_status status = 0;
> > - int i, ret;
> > + int ret;
> >
> > /* set frontend */
> > ret = lgdt3306a_set_parameters(fe);
> > if (ret)
> > goto error;
> >
> > - /* wait frontend lock */
> > - for (i = 20; i > 0; i--) {
> > - dbg_info(": loop=%d\n", i);
> > - msleep(50);
> > - ret = lgdt3306a_read_status(fe, &status);
> > - if (ret)
> > - goto error;
> > -
> > - if (status & FE_HAS_LOCK)
> > - break;
> > - }
Could you please explain why lgdt3306a needs the above ugly hack?
> > + ret = lgdt3306a_read_status(fe, &status);
> > + if (ret)
> > + goto error;
> >
> > /* check if we have a valid signal */
> > if (status & FE_HAS_LOCK)
>
> Your patch removes a loop that was purposefully written here to handle
> conditions that are not ideal. Are you sure this change is best for
> all users?
>
> I would disagree with merging this patch.
>
> Best regards,
>
> Michael Ira Krufky
--
Thanks,
Mauro
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