linux-kernel - Re: [PATCH] media: helene: fix tuning frequency of satellite

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Date:   Thu, 31 May 2018 17:43:01 +0900
From:   "Katsuhiro Suzuki" <suzuki.katsuhiro@...ionext.com>
To:     "'Abylay Ospan'" <aospan@...up.ru>,
        Suzuki, Katsuhiro/鈴木 勝博 
        <suzuki.katsuhiro@...ionext.com>
Cc:     "Mauro Carvalho Chehab" <mchehab@...nel.org>,
        "linux-media" <linux-media@...r.kernel.org>,
        "Masami Hiramatsu" <masami.hiramatsu@...aro.org>,
        "Jassi Brar" <jaswinder.singh@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media: helene: fix tuning frequency of satellite

Hello Abylay,

I got a mistake in this patch.

DTV_FREQUENCY for satellite delivery systems, the frequency is in 'kHz' not 'Hz',
so original code is correct. Sorry for confusing...


Regards,
--
Katsuhiro Suzuki


> -----Original Message-----
> From: Abylay Ospan <aospan@...up.ru>
> Sent: Wednesday, May 16, 2018 7:58 PM
> To: Suzuki, Katsuhiro/鈴木 勝博 <suzuki.katsuhiro@...ionext.com>
> Cc: Mauro Carvalho Chehab <mchehab@...nel.org>; linux-media
> <linux-media@...r.kernel.org>; Masami Hiramatsu <masami.hiramatsu@...aro.org>;
> Jassi Brar <jaswinder.singh@...aro.org>; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org
> Subject: Re: [PATCH] media: helene: fix tuning frequency of satellite
> 
> True.
> I'm curious but how did it worked before ...
> Which hardware (dvb adapter) are you using ?
> 
> 2018-05-16 4:41 GMT-04:00 Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>:
> > This patch fixes tuning frequency of satellite to kHz. That as same
> > as terrestrial one.
> >
> > Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@...ionext.com>
> > ---
> >  drivers/media/dvb-frontends/helene.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/dvb-frontends/helene.c
> b/drivers/media/dvb-frontends/helene.c
> > index 04033f0c278b..0a4f312c4368 100644
> > --- a/drivers/media/dvb-frontends/helene.c
> > +++ b/drivers/media/dvb-frontends/helene.c
> > @@ -523,7 +523,7 @@ static int helene_set_params_s(struct dvb_frontend *fe)
> >         enum helene_tv_system_t tv_system;
> >         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
> >         struct helene_priv *priv = fe->tuner_priv;
> > -       int frequencykHz = p->frequency;
> > +       int frequencykHz = p->frequency / 1000;
> >         uint32_t frequency4kHz = 0;
> >         u32 symbol_rate = p->symbol_rate/1000;
> >
> > --
> > 2.17.0
> >
> 
> 
> 
> --
> Abylay Ospan,
> NetUP Inc.
> http://www.netup.tv