Date: Fri, 18 Mar 2016 16:04:04 +0100
From: Sebastian Reichel <sre@kernel.org>
To: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>,
        Jarkko Nikula <jarkko.nikula@bitmer.com>,
        Tony Lindgren <tony@atomide.com>, Lars-Peter Clausen <lars@metafoo.de>,
        linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
        Pavel Machek <pavel@ucw.cz>, Aaro Koskinen <aaro.koskinen@iki.fi>,
        Nishanth Menon <nm@ti.com>, merlijn@wizzup.org
Subject: Re: Nokia N900 - audio TPA6130A2 problems
Message-ID: <20160318150404.GA30829@earth>
References: <20160316144709.GA3389@earth>
 <56E9A42B.3010209@gmail.com>
 <56E9A6D9.7000003@ti.com>
 <56E9B910.7000904@gmail.com>
 <56EA6282.5050501@ti.com>
 <56EAE8C3.1080301@gmail.com>
 <56EBD96A.8090505@ti.com>
 <1458306829.11841.2.camel@Nokia-N900>
 <20160318133641.GB16747@earth>
 <56EC0676.3000509@gmail.com>
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Hi,

On Fri, Mar 18, 2016 at 03:45:26PM +0200, Ivaylo Dimitrov wrote:
> On 18.03.2016 15:36, Sebastian Reichel wrote:
>=20
> >Have you tried the ideas from <20160317004917.GA6750@earth> (Date:
> >Thu, 17 Mar 2016 01:49:18 +0100)?
> >
>=20
> To the extend I understood them :)
>=20
> Regulator is V28_A, which is always-on, so it is enabled no matter what
> probe does. Anyway, I added a various delays after regulator_enable(), to=
 no
> success.

Did you by chance also test adding a delay after setting the power
gpio? According to the datasheet:

Start-up time from shutdown: typical 5ms

> I didn't try building the driver as a module, instead I played with
> bind/unbind functionality - makes no difference.

Ok.

-- Sebastian

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