From: Antti Palosaari <crope@iki.fi>
To: David Howells <dhowells@redhat.com>,
Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: linux-media@vger.kernel.org, Jarkko Korpi <jarkko_korpi@hotmail.com>
Subject: Re: I2C transfer logs for Antti's DS3103 driver and DVBSky's DS3103 driver
Date: Fri, 15 Nov 2013 15:06:29 +0200 [thread overview]
Message-ID: <52861C55.6050307@iki.fi> (raw)
In-Reply-To: <28089.1384515232@warthog.procyon.org.uk>
On 15.11.2013 13:33, David Howells wrote:
> I think I've isolated the significant part of the demod register setup.
> Discarding the reads and sorting them in address order, I see
>
> ANTTI DVBSKY DIFFER?
> ======================= ======================= =======
> demod_write(22, [ac]) demod_write(22, [ac]) no
> demod_write(24, [5c]) demod_write(24, [5c]) no
> demod_write(25, [8a]) YES
seems to be on init table
> demod_write(29, [80]) demod_write(29, [80]) no
> demod_write(30, [08]) demod_write(30, [08]) no
> demod_write(33, [00]) YES
That is config option already. Did you set value? If yes, then there is
driver bug. If not, then add value.
> demod_write(4d, [91]) demod_write(4d, [91]) no
> demod_write(56, [00]) YES
driver bug
> demod_write(61, [5549]) demod_write(61, [55]) no
> " " demod_write(62, [49]) no
> demod_write(76, [38]) YES
on init table
> demod_write(c3, [08]) demod_write(c3, [08]) no
> demod_write(c4, [08]) demod_write(c4, [08]) no
> demod_write(c7, [00]) demod_write(c7, [00]) no
> demod_write(c8, [06]) demod_write(c8, [06]) no
> demod_write(ea, [ff]) demod_write(ea, [ff]) no
> demod_write(fd, [46]) demod_write(fd, [06]) YES
driver bug
> demod_write(fe, [6f]) demod_write(fe, [6f]) no
Two clear driver bugs, 1 case unclear and the rest should be programmed
earlier.
So hard code those bugs, if you already didn't, 0x33=0x99, 0x56=0x00,
0xfd=0x46 and make test. Do that same to find out all buggy registers
until it performs as it should.
regards
Antti
--
http://palosaari.fi/
next prev parent reply other threads:[~2013-11-15 13:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-14 23:35 I2C transfer logs for Antti's DS3103 driver and DVBSky's DS3103 driver David Howells
2013-11-14 23:48 ` Antti Palosaari
2013-11-15 2:15 ` David Howells
2013-11-15 11:33 ` David Howells
2013-11-15 13:06 ` Antti Palosaari [this message]
2013-11-15 13:32 ` David Howells
2013-11-15 13:36 ` Devin Heitmueller
2013-11-15 13:54 ` Antti Palosaari
2013-11-15 14:17 ` David Howells
2013-11-15 13:56 ` David Howells
2013-11-15 13:59 ` Antti Palosaari
2013-11-15 14:25 ` David Howells
2013-11-15 14:01 ` David Howells
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52861C55.6050307@iki.fi \
--to=crope@iki.fi \
--cc=dhowells@redhat.com \
--cc=jarkko_korpi@hotmail.com \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.