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From: Roman Volkov <v1ron@mail.ru>
To: Clemens Ladisch <clemens@ladisch.de>
Cc: alsa-devel@alsa-project.org
Subject: Re: Xonar DG backports
Date: Wed, 5 Mar 2014 14:30:16 +0400	[thread overview]
Message-ID: <20140305143016.66cef4a6@v1ron-desktop> (raw)
In-Reply-To: <5316F1CE.4040706@ladisch.de>

В Wed, 05 Mar 2014 10:43:42 +0100
Clemens Ladisch <clemens@ladisch.de> пишет:

> Hi Roman,
> 
> I backporting the bugfixes in your patches to the stable kernels.
> However, I'm unable to see what was changed to enable the headphone
> outputs.  What particular thing did the old driver wrong?
> 
> 
> Regards,
> Clemens
> 

Hi Clemens,

The most important thing was to switch the capture input to the I2S
channel 1 (The patch #13). Read the CS4245 datasheet carefully:
4.11
"The MUTEC pin becomes active during power-up initialization, reset, and
muting if the MCLK2 to LRCK2 ratio is incorrect in Asynchronous Mode or
the MCLK1 to LRCK2 ratio is incorrect in Synchronous Mode, and during
power-down."

Also there was other minor fixes. I had problems when I wrote
values to the CS4245 SPI memory at the starting point (had no any
effect), and I rewrote the SPI communication functions. Was there any
bug or the CS4245 was just muted - I can't exactly recall.

-- 
Kind regards,
Roman Volkov,
v1ron@mail.ru
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      reply	other threads:[~2014-03-05 10:30 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20140204172108.179e97e9@v1ron-desktop>
2014-03-05  9:43 ` Xonar DG backports Clemens Ladisch
2014-03-05 10:30   ` Roman Volkov [this message]

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