On Thu, Sep 27, 2012 at 6:46 PM, Antti Palosaari <cr...@iki.fi> wrote: > On 09/28/2012 01:43 AM, Michael Krufky wrote: >> >> On Thu, Sep 27, 2012 at 6:26 PM, Antti Palosaari <cr...@iki.fi> wrote: >>> >>> On 09/28/2012 12:58 AM, Michael Krufky wrote: >>>> >>>> >>>> On Thu, Sep 27, 2012 at 5:38 PM, Antti Palosaari <cr...@iki.fi> wrote: >>>>> >>>>> >>>>> On 09/28/2012 12:20 AM, Michael Krufky wrote: >>>>>> >>>>>> >>>>>> >>>>>> On Thu, Sep 27, 2012 at 3:59 PM, Antti Palosaari <cr...@iki.fi> wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> On 09/27/2012 10:19 PM, Mauro Carvalho Chehab wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Em Thu, 26 Jul 2012 08:48:58 -0400 >>>>>>>> Michael Krufky <mkru...@linuxtv.org> escreveu: >>>>>>>> >>>>>>>>> Antti, >>>>>>>>> >>>>>>>>> This small patch should do the trick -- can you test it? >>>>>>>>> >>>>>>>>> >>>>>>>>> The following changes since commit >>>>>>>>> 0c7d5a6da75caecc677be1fda207b7578936770d: >>>>>>>>> >>>>>>>>> Linux 3.5-rc5 (2012-07-03 22:57:41 +0300) >>>>>>>>> >>>>>>>>> are available in the git repository at: >>>>>>>>> >>>>>>>>> git://git.linuxtv.org/mkrufky/tuners tda18271 >>>>>>>>> >>>>>>>>> for you to fetch changes up to >>>>>>>>> 782b28e20d3b253d317cc71879639bf3c108b200: >>>>>>>>> >>>>>>>>> tda18271: enter low-power standby mode at the end of >>>>>>>>> tda18271_attach() (2012-07-26 08:34:37 -0400) >>>>>>>>> >>>>>>>>> ---------------------------------------------------------------- >>>>>>>>> Michael Krufky (1): >>>>>>>>> tda18271: enter low-power standby mode at the end of >>>>>>>>> tda18271_attach() >>>>>>>>> >>>>>>>>> drivers/media/common/tuners/tda18271-fe.c | 3 +++ >>>>>>>>> 1 file changed, 3 insertions(+) >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> Mike, >>>>>>>> >>>>>>>> Despite patchwork's way of handling, thinking that this is a pull >>>>>>>> request, >>>>>>>> I suspect that your intention here were simply offer some patches >>>>>>>> for >>>>>>>> Antti >>>>>>>> to test. >>>>>>>> >>>>>>>> In any case, please always send the patches via email to the ML >>>>>>>> before >>>>>>>> sending a pull request. This was always a rule, but some developers >>>>>>>> are >>>>>>>> lazy with this duty, and, as I didn't use to have a tool to double >>>>>>>> check, >>>>>>>> bad things happen. >>>>>>>> >>>>>>>> I'm now finally able to check with a simple script if weather a >>>>>>>> patch >>>>>>>> went to the ML or not. My script checks both reply-to/references >>>>>>>> email >>>>>>>> tags and it looks for the same patch subject at the ML Inbox. >>>>>>>> So, I'll be now be more grumpy with that ;) [1] >>>>>>>> >>>>>>>> So, please be sure to post those patches at the ML, with Antti's >>>>>>>> tested-by: >>>>>>>> tag, before sending a pull request. >>>>>>>> >>>>>>>> Thanks! >>>>>>>> Mauro >>>>>>>> >>>>>>>> [1] Side note: it is not actually a matter of being grumpy; posted >>>>>>>> patches >>>>>>>> receive a lot more attention/review than simple pull requests. From >>>>>>>> time >>>>>>>> to time, patches that went via the wrong way (e. g. without a >>>>>>>> previous >>>>>>>> post) >>>>>>>> caused troubles for other developers. So, enforcing it is actually a >>>>>>>> matter >>>>>>>> of improving Kernel quality and avoiding regressions. >>>>>>>> >>>>>>>> - >>>>>>>> >>>>>>>> $ test_patch >>>>>>>> testing if >>>>>>>> >>>>>>>> >>>>>>>> patches/0001-tda18271-enter-low-power-standby-mode-at-the-end-of-.patch >>>>>>>> applies >>>>>>>> patch -p1 -i >>>>>>>> >>>>>>>> >>>>>>>> patches/0001-tda18271-enter-low-power-standby-mode-at-the-end-of-.patch >>>>>>>> --dry-run -t -N >>>>>>>> patching file drivers/media/tuners/tda18271-fe.c >>>>>>>> drivers/media/tuners/tda18271-fe.c | 3 +++ >>>>>>>> 1 file changed, 3 insertions(+) >>>>>>>> Subject: tda18271: enter low-power standby mode at the end of >>>>>>>> tda18271_attach() >>>>>>>> From: Michael Krufky <mkru...@linuxtv.org> >>>>>>>> Date: Thu, 26 Jul 2012 08:34:37 -0400 >>>>>>>> Patch applies OK >>>>>>>> total: 0 errors, 0 warnings, 9 lines checked >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> patches/0001-tda18271-enter-low-power-standby-mode-at-the-end-of-.patch >>>>>>>> has no obvious style problems and is ready for submission. >>>>>>>> Didn't find any message with subject equal to 'tda18271: enter >>>>>>>> low-power >>>>>>>> standby mode at the end of tda18271_attach()' >>>>>>>> Duplicated md5sum patches >>>>>>>> Likely duplicated patches (need manual check) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> If that tda18271 patch is not applied then these two should be: >>>>>>> >>>>>>> https://patchwork.kernel.org/patch/1481901/ >>>>>>> https://patchwork.kernel.org/patch/1481911/ >>>>>>> >>>>>>> >>>>>>> regards >>>>>>> Antti >>>>>>> >>>>>>> -- >>>>>>> http://palosaari.fi/ >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> The tda18271 patch should indeed be applied -- I will send it to the >>>>>> ML later on today and follow up with a pull request. Thanks to all >>>>>> who have commented :-) >>>>> >>>>> >>>>> >>>>> >>>>> Mike, There is other problem too. PCTV 520e, which is Em28xx + DRX-K + >>>>> TDA18271, fails to attach tuner now. Tuner is wired behind DRX-K I2C >>>>> bus. >>>>> TDA18271 driver does very much I/O during attach and I2C error is >>>>> raised >>>>> during attach now. Earlier it worked as DRX-K firmware was downloaded >>>>> before >>>>> tuner was attached, but now both DRX-K fw download and tuner attach >>>>> happens >>>>> same time leading that error. >>>> >>>> >>>> >>>> Why is the DRX-K firmware downloading at the same time as tuner >>>> attach? Shouldn't the demod attach be finished before the tuner >>>> attach begins? >>> >>> >>> >>> What I think all these should go in order bridge => demod => tuner. >>> Attach >>> and fw loading. I cannot see how it will never work generally unless >>> those >>> firmwares are loaded in that order. >>> 1) bridge needs firmware up and running before demod could be attached. >>> That >>> is mostly because I2C adapter is behind bridge. >>> >>> 2) demod needs firmware up and running before tuner could be attached. >>> That >>> is mostly because I2C adapter/bus for tuner is behind the demod. >>> >>> 3) tuner needs firmware up and running as there could be firmware >>> controlled >>> GPIO bus behind tuner. There is many times LNA, LNB controller, LED, >>> antenna >>> switch. I am not surprised if there is even I2C bus behind the tuner to >>> control LNB or other equipment near antenna connector and tuner. >>> >>> Of course situation is not that bad usually - but surely there could be >>> some >>> existing device which is very near that. But as we *want* to do things as >>> general as possible to avoid driver / device specific hacks that is the >>> only >>> reasonable model. >>> >> >> >> I'm not sure how that relates to the problem you brought up..... >> back to the issue: >> >> I don't have the PCTV 520e schematics handy, but... it's possible >> that the DRX-K depends on XTOUT from the tda18271 -- >> >> In your struct tda18271_config, are you using the .output_opt >> configuration? for example: >> >> struct tda18271_config hauppauge_tda18271_config = { >> .std_map = &hauppauge_tda18271_std_map, >> .gate = TDA18271_GATE_ANALOG, >> .output_opt = TDA18271_OUTPUT_LT_OFF, >> }; >> >> >> If so, try deleting the .output_opt line - see if that helps. > > > I suspect it does not have nothing to do with tuner outputs. If I add 2 > second sleep after demod attach and before tuner attach - it works. Also if > I use DRX-K internal firmware (not download newer) it works. > > Here is the debug (drx-k & tda18271): > http://palosaari.fi/linux/v4l-dvb/em28xx_drxk_tda18271.txt
Antti, This is not about tuner *output* -- The tda18271 has a crystal output feature to drive another demod. If the demod needs this crystal output, then it will lockup if the tuner disables the xtout. Please try my suggestion -- it seems to me that it's quite likely that the DRX-K could be using the XTOUT from the tda18271. That's why the driver leaves XTOUT on by default. Try rebuilding with the TDA18271_OUTPUT_LT_OFF, removed. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
