Re: DM1105: could not attach frontend 195d:1105

[Mauro Carvalho Chehab <mchehab@infradead.org>]

Hi Igor,

Em 23-10-2010 07:20, Igor M. Liplianin escreveu:
> В сообщении от 10 марта 2010 14:15:49 автор Hendrik Skarpeid написал:
>> Igor M. Liplianin skrev:
>>> On 3 марта 2010 18:42:42 Hendrik Skarpeid wrote:
>>>> Igor M. Liplianin wrote:
>>>>> Now to find GPIO's for LNB power control and ... watch TV :)
>>>>
>>>> Yep. No succesful tuning at the moment. There might also be an issue
>>>> with the reset signal and writing to GPIOCTR, as the module at the
>>>> moment loads succesfully only once.
>>>> As far as I can make out, the LNB power control is probably GPIO 16 and
>>>> 17, not sure which is which, and how they work.
>>>> GPIO15 is wired to tuner #reset
>>>
>>> New patch to test
>>
>> I think the LNB voltage may be a little to high on my card, 14.5V and
>> 20V. I would be a little more happy if they were 14 and 19, 13 and 18
>> would be perfect.
>> Anyways, as Igor pointet out, I don't have any signal from the LNB,
>> checked with another tuner card. It's a quad LNB, and the other outputs
>> are fine. Maybe it's' toasted from to high supply voltage! I little word
>> of warning then.
>> Anyways, here's my tweaked driver.
> 
> Here is reworked patch for clear GPIO's handling.
> It allows to support I2C on GPIO's and per board LNB control through GPIO's.
> Also incuded support for Hendrik's card.
> I think it is clear how to change and test GPIO's for LNB and other stuff now.
> To Hendrik:
> 	Not shure, but there is maybe GPIO for raise/down LNB voltage a little (~1v).
> 	It is used for long coaxial lines to compensate voltage dropping.
> 
> Signed-off-by: Igor M. Liplianin <liplianin@me.by>

I'm not sure if this patch is still valid or not, and if it should or not be
applied, as there were several discussions around it. As a reference, it is stored
at patchwork with:
	X-Patchwork-Id: 279091

And still applies fine (yet, patchwork lost patch history/comments and SOB).

Igor, could you please update me if I should apply this patch or if the patch got
rejected/superseeded?

Thanks!
Mauro.