From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from casper.infradead.org ([85.118.1.10]:53421 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755133Ab1ECVeA (ORCPT ); Tue, 3 May 2011 17:34:00 -0400 Message-ID: <4DC074BF.3000508@infradead.org> Date: Tue, 03 May 2011 18:33:51 -0300 From: Mauro Carvalho Chehab MIME-Version: 1.0 To: "Igor M. Liplianin" CC: Hendrik Skarpeid , linux-media@vger.kernel.org, Nameer Kazzaz Subject: Re: DM1105: could not attach frontend 195d:1105 References: <4B7D83B2.4030709@online.no> <201003032105.06263.liplianin@me.by> <4B978D75.5080501@online.no> <201010231220.51387.liplianin@me.by> In-Reply-To: <201010231220.51387.liplianin@me.by> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit List-ID: Sender: 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 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.