From: Todd Poynor <tpoynor@mvista.com>
To: Steven Scholz <steven.scholz@imc-berlin.de>
Cc: linux-mtd@lists.infradead.org
Subject: Re: When to call cfi_amdstd_suspend() ?
Date: Fri, 02 Dec 2005 11:04:38 -0800 [thread overview]
Message-ID: <43909AC6.7050509@mvista.com> (raw)
In-Reply-To: <439097CD.7000901@imc-berlin.de>
Steven Scholz wrote:
> Hi all,
>
> I implemented my MTD board driver as a platform device with support for
> suspend/resume.
>
> Upon suspend-to-ram its ->suspend() funktion is called three times for
> levels SUSPEND_DISABLE, SUSPEND_SAVE_STATE and SUSPEND_POWER_DOWN.
>
> In which level should I call the MTD suspend function (i.e.
> cfi_amdstd_suspend() in my case) ?
You can pretty much just choose one... SUSPEND_POWER_DOWN may be a good
choice. Same for resume. The levels aren't really used anymore in the
PM subsystem.
> What happens if I called it in every level as it is done in pxa2xx-flash.c?
That file is ported to a newer version of the code that drops the levels
and the suspend/resume callbacks are only called once.
--
Todd
prev parent reply other threads:[~2005-12-02 19:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-02 18:51 When to call cfi_amdstd_suspend() ? Steven Scholz
2005-12-02 19:04 ` Todd Poynor [this message]
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