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

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Date:	Fri, 18 Mar 2016 17:56:07 +0200
From:	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
To:	Sebastian Reichel <sre@...nel.org>
Cc:	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


Hi,

On 18.03.2016 17:04, Sebastian Reichel wrote:
> 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
>

:)

if (data->power_gpio) {
	dev_err(&tpa6130a2_client->dev,
		"!!!!!!!!!!!! GPIO SET: %d\n", ret);
	mdelay(10);
	gpiod_set_value(data->power_gpio, 1);
	mdelay(10);
}

Ivo