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Date:   Thu, 3 Oct 2019 11:05:51 -0300
From:   Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
To:     Gonsolo <gonsolo@gmail.com>
Cc:     JP <jp@jpvw.nl>, crope@iki.fi, Sean Young <sean@mess.org>,
        linux-media@vger.kernel.org,
        Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] si2157: Add support for Logilink VG0022A.
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Em Thu, 3 Oct 2019 15:53:30 +0200
Gonsolo <gonsolo@gmail.com> escreveu:

> Hi!
> 
> I tried downloading a new firmware via
> 
>        case SI_BOGUS:
> -               dev_info(&client->dev, "Bogus chip version, trying
> with no firmware\n");
> -               fw_name = NULL;
> +               dev_info(&client->dev, "Bogus chip version, trying
> with new firmware\n");
> +               fw_name = SI2157_A30_FIRMWARE;
>                 break;
> 
> which I downloaded from
> 
> +               //
> https://github.com/CoreELEC/dvb-firmware/blob/master/firmware/dvb-tuner-si2157-a30-01.fw
> 
> resulting in
> 
> [  209.312086] si2168 1-0067: downloading firmware from file
> 'dvb-demod-si2168-b40-01.fw'
> [  211.535097] si2168 1-0067: firmware version: B 4.0.25
> [  211.554938] si2157 2-0063: Bogus chip version, trying with new firmware
> [  211.554944] si2157 2-0063: found a 'Silicon Labs Si21255-\xff\xff\xff'
> [  211.557978] si2157 2-0063: downloading firmware from file
> 'dvb-tuner-si2157-a30-01.fw'
> [  215.739092] si2157 2-0063: rebooting tuner...
> [  215.755271] si2157 2-0063: querying firmware version...
> [  215.760756] si2157 2-0063: firmware version: \xff.\xff.255
> 
> . So even with a new firmware the queried numbers are bogus.

Try to reduce the bus speed to 10kbps
> 
> g


Thanks,
Mauro