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

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Date:	Mon, 21 Mar 2016 12:03:49 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Sebastian Reichel <sre@...nel.org>
Cc:	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	Grygorii Strashko <grygorii.strashko@...com>,
	Pali Rohár <pali.rohar@...il.com>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	Tony Lindgren <tony@...mide.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	Pavel Machek <pavel@....cz>,
	Aaro Koskinen <aaro.koskinen@....fi>,
	Nishanth Menon <nm@...com>, merlijn@...zup.org
Subject: Re: Nokia N900 - audio TPA6130A2 problems

On Mon, Mar 21, 2016 at 01:04:18AM +0100, Sebastian Reichel wrote:

> Right thinking about it, the voltage must also be configured for the
> non always-on cases. So it's not a problem with the regulator
> framework, but with twl-regulator's probe function, that should take
> care of this.

Absolutely not!  Like all other regulator drivers the twl driver should
be taking no decisions about what voltage to set except in response to a
set_voltage() call.  All the logic about setting voltages is factored
out into the core.

Please try to understand the abstractions we're using in the framework.

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