linux-kernel - Re: [RFC 3/3] libata: don't perform HW activity in devres

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Message-ID: <20121025174331.GK11442@htj.dyndns.org>
Date:	Thu, 25 Oct 2012 10:43:31 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Kevin Cernekee <cernekee@...il.com>
Subject: Re: [RFC 3/3] libata: don't perform HW activity in devres

Hello,

On Thu, Oct 25, 2012 at 10:41:57AM -0700, Brian Norris wrote:
> Hmm, I guess that makes more sense. I was using the ahci_platform
> ahci_platform_data->exit() function. Would it be safe to call the
> platform init()/exit() functions as part of a
> ata_port_operations.host_{start,stop}() hook? These functions aren't
> currently implemented at all in ahci_platform, but I don't see why
> they couldn't be.

I don't have much idea about the specifics but host_start/stop() are
supposed to perform the functions you're describing.

Thanks.

-- 
tejun
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