[linux-dvb] tda1004x update
hartmut.hackmann at t-online.de
Tue Nov 8 22:22:44 CET 2005
Michael Krufky wrote:
> Hartmut Hackmann wrote:
>> Michael Krufky wrote:
>>> Hartmut Hackmann wrote:
>>>> I just committed an update of the tda1004x dvb-t driver to the
>>>> CVS. It only affects the tda10046 (hopefully):
>>>> - fixed oddities at firmware download from eeprom.
>>>> - more tolerant vs crystal frequency offset. It should now work with up
>>>> to -/+100ppm deviation. This can be the cause why some boards like
>>>> the Lifeview just didn't work for some users.
>>>> - lower sampling clock to 48Mhz for low IF and 53MHz for 36MHz.
>>>> with some other minor changes, this increases the sensitivity a bit.
>>>> - doesn't touch the GPIOs any longer. This needs to be handled by the
>>>> board layer.
>>>> The latter change might cause incompatibilities. However, it is
>>>> since the pins are used very differently. I could not find problems
>>>> boards i have access to.
>>> What is the status of the testings with this patch? Your
>>> announcement mentions some possible incompatabilities...
>>> Mauro has already send your v4l patches to -mm... Do they depend on
>>> this one?
>> I haven't heard anything but few reports that it gave the slight
>> improvement i expected.
>> I tested with 4 different cards: Lifeview, Philips Tiger and Europa
>> and the
>> Medion. The Philips cards are at least compatible with the Compro and
>> the ASUS.
>> I can get hands on one other important card in short term.
>> So there is quite some test coverage.
>> The GPIO thing can cause trouble with modern hybrid cards like the
>> ASUS which
>> need proper handling of the GPIOs.
>> Hermann, can you roll back the tda1004x driver to see whether the old
>> works with your card?
>> This went a bit fast. I didn't expect that Mauro would update the patches
> Hmmm.... I do agree that Mauro might have sent the v4l patches too
> quickly to -mm... However, -mm itself is somewhat of a testing area.
> If I understand it correctly, the patches in v4l are only adding dvb
> support, and will not break anything unrelated. Is this correct?
> If that is correct, then it is okay for Mauro to have sent them. Now, I
> need to know from you whether the corresponding dvb patch to tda1004x
> should also be sent to -mm? IIRC, the patch that Mauro sent to -mm
> might depend on this dvb patch. If so, let me know, and I'll send it to
> Unless, of course, you think it has the potential to break other
> boards. In which case, let Mauro know and he can have akpm drop it from
> -mm until it can get some more testing in cvs.
Just to clarify this: i don't blame Mauro, i was just surprised about
the fast 2nd update...
There are 3 recent patches from me:
The first one fixes the SEMAC-L problem with the tda8290. I am sure this
one is correct.
The other 2 patches plus the tda1004x update are dvb-t only. They will
not break compatibility with known cards and compile with the old and
the new version of the tda1004x driver.
Regarding the tda1004x update: Please let me check whether the recently
added boards work with the old version of the tda1004x (need to solve a
very specific issue). If this is the case, i will recommend not to
update this module right now but leave more time for compatibility
checks. I will let you know the next days.
I hope this clarifies things.
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