linux-kernel - Re: [PATCH] i2c: designware: use enable on resume instead initialization

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Message-ID: <20150610075555.GO1478@lahna.fi.intel.com>
Date:	Wed, 10 Jun 2015 10:55:55 +0300
From:	Mika Westerberg <mika.westerberg@...ux.intel.com>
To:	lucas.de.marchi@...il.com
Cc:	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	Wolfram Sang <wsa@...-dreams.de>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	Fabio Mello <fabio.mello@...el.com>,
	Lucas De Marchi <lucas.demarchi@...el.com>
Subject: Re: [PATCH] i2c: designware: use enable on resume instead
 initialization

On Mon, Jun 08, 2015 at 02:50:28PM -0300, lucas.de.marchi@...il.com wrote:
> @@ -320,7 +320,7 @@ static int dw_i2c_resume(struct device *dev)
>  	clk_prepare_enable(i_dev->clk);
>  
>  	if (!i_dev->pm_runtime_disabled)
> -		i2c_dw_init(i_dev);
> +		i2c_dw_enable(i_dev);

This will not work if the device power gets removed (for example being
put to D3cold) as it looses context.
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