Re: tda18271 driver power consumption

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On 09/28/2012 12:20 AM, Michael Krufky wrote:
On Thu, Sep 27, 2012 at 3:59 PM, Antti Palosaari <crope@xxxxxx> wrote:
On 09/27/2012 10:19 PM, Mauro Carvalho Chehab wrote:

Em Thu, 26 Jul 2012 08:48:58 -0400
Michael Krufky <mkrufky@xxxxxxxxxxx> 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 <mkrufky@xxxxxxxxxxx>
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.

regards
Antti


--
http://palosaari.fi/
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