linux-kernel - Re: Nokia N900 - audio TPA6130A2 problems

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Message-ID: <20150814204649.GA7628@Nokia-N900>
Date:	Fri, 14 Aug 2015 22:46:49 +0200
From:	Pavel Machek <pavel@....cz>
To:	Pali Roh?r <pali.rohar@...il.com>
Cc:	Jarkko Nikula <jarkko.nikula@...mer.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	Sebastian Reichel <sre@...nel.org>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Tony Lindgren <tony@...mide.com>, Nishanth Menon <nm@...com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
Subject: Re: Nokia N900 - audio TPA6130A2 problems

Hi!

> Maybe some power management problem? Something is not always initialized 
> correctly?
> 
> I remember that there is some problem (maybe in NoLo - Nokia bootloader) 
> that sometimes chainloaded U-Boot (booted via NoLo) is not able to 
> initialize mmc chip (all read operation fails). In U-Boot I added some 
> code to enable some parts in twl4030 regulator and after that mmc is 
> working always...

Could I get some details? Thay code should be moved to kernel,
I'd really like mmc to work, no matter how machine was booted.

Best regards,

							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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